/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-18 06:35:36,253 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 06:35:36,255 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 06:35:36,273 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-18 06:35:36,273 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-18 06:35:36,275 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-18 06:35:36,277 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-18 06:35:36,290 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-18 06:35:36,291 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-18 06:35:36,292 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-18 06:35:36,295 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-18 06:35:36,297 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-18 06:35:36,297 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 06:35:36,301 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 06:35:36,302 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 06:35:36,304 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 06:35:36,306 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 06:35:36,307 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 06:35:36,310 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 06:35:36,314 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 06:35:36,317 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 06:35:36,318 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 06:35:36,319 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 06:35:36,321 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 06:35:36,323 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-18 06:35:36,329 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-18 06:35:36,329 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-18 06:35:36,331 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-18 06:35:36,332 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-18 06:35:36,334 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-18 06:35:36,334 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-18 06:35:36,336 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-18 06:35:36,336 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-18 06:35:36,336 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 06:35:36,337 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 06:35:36,338 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 06:35:36,339 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-18 06:35:36,354 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 06:35:36,354 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 06:35:36,356 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 06:35:36,356 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 06:35:36,357 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 06:35:36,357 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 06:35:36,357 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 06:35:36,357 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 06:35:36,357 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 06:35:36,357 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 06:35:36,358 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 06:35:36,359 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 06:35:36,359 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 06:35:36,359 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 06:35:36,360 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 06:35:36,360 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 06:35:36,360 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 06:35:36,360 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 06:35:36,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 06:35:36,361 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 06:35:36,361 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 06:35:36,361 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 06:35:36,361 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-07-18 06:35:36,620 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 06:35:36,633 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 06:35:36,636 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 06:35:36,637 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 06:35:36,638 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 06:35:36,639 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i [2020-07-18 06:35:36,707 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/830571804/6660b97467474a3abfd974d15a6a42f6/FLAGefe38fe5e [2020-07-18 06:35:37,155 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 06:35:37,156 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i [2020-07-18 06:35:37,163 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/830571804/6660b97467474a3abfd974d15a6a42f6/FLAGefe38fe5e [2020-07-18 06:35:37,547 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/830571804/6660b97467474a3abfd974d15a6a42f6 [2020-07-18 06:35:37,558 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 06:35:37,561 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 06:35:37,562 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 06:35:37,562 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 06:35:37,565 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 06:35:37,567 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 06:35:37" (1/1) ... [2020-07-18 06:35:37,570 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72415bee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:35:37, skipping insertion in model container [2020-07-18 06:35:37,570 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 06:35:37" (1/1) ... [2020-07-18 06:35:37,577 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 06:35:37,596 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 06:35:37,785 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 06:35:37,791 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 06:35:37,834 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 06:35:37,846 INFO L208 MainTranslator]: Completed translation [2020-07-18 06:35:37,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:35:37 WrapperNode [2020-07-18 06:35:37,847 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 06:35:37,847 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 06:35:37,848 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 06:35:37,848 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 06:35:37,939 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:35:37" (1/1) ... [2020-07-18 06:35:37,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:35:37" (1/1) ... [2020-07-18 06:35:37,950 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:35:37" (1/1) ... [2020-07-18 06:35:37,950 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:35:37" (1/1) ... [2020-07-18 06:35:37,965 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:35:37" (1/1) ... [2020-07-18 06:35:37,971 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:35:37" (1/1) ... [2020-07-18 06:35:37,973 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:35:37" (1/1) ... [2020-07-18 06:35:37,974 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 06:35:37,975 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 06:35:37,975 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 06:35:37,975 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 06:35:37,976 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:35:37" (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 [2020-07-18 06:35:38,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 06:35:38,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 06:35:38,036 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-18 06:35:38,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-18 06:35:38,037 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 06:35:38,037 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 06:35:38,037 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-18 06:35:38,037 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-18 06:35:38,037 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-18 06:35:38,038 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-18 06:35:38,038 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 06:35:38,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 06:35:38,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 06:35:38,528 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 06:35:38,528 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-07-18 06:35:38,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 06:35:38 BoogieIcfgContainer [2020-07-18 06:35:38,533 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 06:35:38,534 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 06:35:38,534 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 06:35:38,537 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 06:35:38,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 06:35:37" (1/3) ... [2020-07-18 06:35:38,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20975c87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 06:35:38, skipping insertion in model container [2020-07-18 06:35:38,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:35:37" (2/3) ... [2020-07-18 06:35:38,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20975c87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 06:35:38, skipping insertion in model container [2020-07-18 06:35:38,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 06:35:38" (3/3) ... [2020-07-18 06:35:38,541 INFO L109 eAbstractionObserver]: Analyzing ICFG SpamAssassin-loop.i [2020-07-18 06:35:38,551 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 06:35:38,558 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-18 06:35:38,570 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-18 06:35:38,591 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 06:35:38,591 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 06:35:38,592 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-18 06:35:38,592 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 06:35:38,592 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 06:35:38,592 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 06:35:38,593 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 06:35:38,593 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 06:35:38,609 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-07-18 06:35:38,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-18 06:35:38,620 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 06:35:38,621 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] [2020-07-18 06:35:38,622 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 06:35:38,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 06:35:38,627 INFO L82 PathProgramCache]: Analyzing trace with hash -1441743938, now seen corresponding path program 1 times [2020-07-18 06:35:38,633 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 06:35:38,634 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1146237375] [2020-07-18 06:35:38,634 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 06:35:38,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:38,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:38,874 INFO L280 TraceCheckUtils]: 0: Hoare triple {77#true} assume true; {77#true} is VALID [2020-07-18 06:35:38,874 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {77#true} {77#true} #119#return; {77#true} is VALID [2020-07-18 06:35:38,876 INFO L263 TraceCheckUtils]: 0: Hoare triple {77#true} call ULTIMATE.init(); {77#true} is VALID [2020-07-18 06:35:38,877 INFO L280 TraceCheckUtils]: 1: Hoare triple {77#true} assume true; {77#true} is VALID [2020-07-18 06:35:38,877 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {77#true} {77#true} #119#return; {77#true} is VALID [2020-07-18 06:35:38,878 INFO L263 TraceCheckUtils]: 3: Hoare triple {77#true} call #t~ret10 := main(); {77#true} is VALID [2020-07-18 06:35:38,878 INFO L280 TraceCheckUtils]: 4: Hoare triple {77#true} havoc ~len~0; {77#true} is VALID [2020-07-18 06:35:38,879 INFO L280 TraceCheckUtils]: 5: Hoare triple {77#true} havoc ~i~0; {77#true} is VALID [2020-07-18 06:35:38,879 INFO L280 TraceCheckUtils]: 6: Hoare triple {77#true} havoc ~j~0; {77#true} is VALID [2020-07-18 06:35:38,879 INFO L280 TraceCheckUtils]: 7: Hoare triple {77#true} havoc ~bufsize~0; {77#true} is VALID [2020-07-18 06:35:38,880 INFO L280 TraceCheckUtils]: 8: Hoare triple {77#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {77#true} is VALID [2020-07-18 06:35:38,880 INFO L280 TraceCheckUtils]: 9: Hoare triple {77#true} ~bufsize~0 := #t~nondet0; {77#true} is VALID [2020-07-18 06:35:38,881 INFO L280 TraceCheckUtils]: 10: Hoare triple {77#true} havoc #t~nondet0; {77#true} is VALID [2020-07-18 06:35:38,881 INFO L280 TraceCheckUtils]: 11: Hoare triple {77#true} assume !(~bufsize~0 < 0); {77#true} is VALID [2020-07-18 06:35:38,882 INFO L280 TraceCheckUtils]: 12: Hoare triple {77#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {77#true} is VALID [2020-07-18 06:35:38,882 INFO L280 TraceCheckUtils]: 13: Hoare triple {77#true} ~len~0 := #t~nondet1; {77#true} is VALID [2020-07-18 06:35:38,883 INFO L280 TraceCheckUtils]: 14: Hoare triple {77#true} havoc #t~nondet1; {77#true} is VALID [2020-07-18 06:35:38,883 INFO L280 TraceCheckUtils]: 15: Hoare triple {77#true} ~limit~0 := ~bufsize~0 - 4; {77#true} is VALID [2020-07-18 06:35:38,883 INFO L280 TraceCheckUtils]: 16: Hoare triple {77#true} ~i~0 := 0; {77#true} is VALID [2020-07-18 06:35:38,884 INFO L280 TraceCheckUtils]: 17: Hoare triple {77#true} assume !!(~i~0 < ~len~0); {77#true} is VALID [2020-07-18 06:35:38,884 INFO L280 TraceCheckUtils]: 18: Hoare triple {77#true} ~j~0 := 0; {77#true} is VALID [2020-07-18 06:35:38,884 INFO L280 TraceCheckUtils]: 19: Hoare triple {77#true} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {77#true} is VALID [2020-07-18 06:35:38,886 INFO L280 TraceCheckUtils]: 20: Hoare triple {77#true} assume 1 + ~i~0 < ~len~0; {81#(< (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-18 06:35:38,888 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 [2020-07-18 06:35:38,889 INFO L280 TraceCheckUtils]: 22: Hoare triple {82#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {83#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-18 06:35:38,890 INFO L280 TraceCheckUtils]: 23: Hoare triple {83#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {78#false} is VALID [2020-07-18 06:35:38,890 INFO L280 TraceCheckUtils]: 24: Hoare triple {78#false} assume !false; {78#false} is VALID [2020-07-18 06:35:38,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 06:35:38,895 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1146237375] [2020-07-18 06:35:38,897 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 06:35:38,897 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-18 06:35:38,898 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834804718] [2020-07-18 06:35:38,904 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-07-18 06:35:38,907 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 06:35:38,911 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-18 06:35:38,964 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:35:38,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-18 06:35:38,965 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 06:35:38,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-18 06:35:38,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-18 06:35:38,976 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 5 states. [2020-07-18 06:35:39,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:35:39,652 INFO L93 Difference]: Finished difference Result 143 states and 210 transitions. [2020-07-18 06:35:39,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-18 06:35:39,653 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-07-18 06:35:39,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 06:35:39,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-18 06:35:39,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 210 transitions. [2020-07-18 06:35:39,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-18 06:35:39,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 210 transitions. [2020-07-18 06:35:39,709 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 210 transitions. [2020-07-18 06:35:40,015 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 210 edges. 210 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:35:40,042 INFO L225 Difference]: With dead ends: 143 [2020-07-18 06:35:40,042 INFO L226 Difference]: Without dead ends: 81 [2020-07-18 06:35:40,059 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 [2020-07-18 06:35:40,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-07-18 06:35:40,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 73. [2020-07-18 06:35:40,186 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 06:35:40,186 INFO L82 GeneralOperation]: Start isEquivalent. First operand 81 states. Second operand 73 states. [2020-07-18 06:35:40,187 INFO L74 IsIncluded]: Start isIncluded. First operand 81 states. Second operand 73 states. [2020-07-18 06:35:40,187 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 73 states. [2020-07-18 06:35:40,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:35:40,196 INFO L93 Difference]: Finished difference Result 81 states and 102 transitions. [2020-07-18 06:35:40,197 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 102 transitions. [2020-07-18 06:35:40,199 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:35:40,199 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:35:40,200 INFO L74 IsIncluded]: Start isIncluded. First operand 73 states. Second operand 81 states. [2020-07-18 06:35:40,200 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 81 states. [2020-07-18 06:35:40,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:35:40,207 INFO L93 Difference]: Finished difference Result 81 states and 102 transitions. [2020-07-18 06:35:40,208 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 102 transitions. [2020-07-18 06:35:40,210 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:35:40,210 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:35:40,210 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 06:35:40,210 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 06:35:40,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-07-18 06:35:40,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 91 transitions. [2020-07-18 06:35:40,218 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 91 transitions. Word has length 25 [2020-07-18 06:35:40,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 06:35:40,218 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 91 transitions. [2020-07-18 06:35:40,218 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-18 06:35:40,219 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 73 states and 91 transitions. [2020-07-18 06:35:40,339 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 91 edges. 91 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:35:40,339 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 91 transitions. [2020-07-18 06:35:40,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-18 06:35:40,340 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 06:35:40,341 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] [2020-07-18 06:35:40,341 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 06:35:40,341 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 06:35:40,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 06:35:40,342 INFO L82 PathProgramCache]: Analyzing trace with hash -1406858677, now seen corresponding path program 1 times [2020-07-18 06:35:40,342 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 06:35:40,342 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [432033083] [2020-07-18 06:35:40,342 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 06:35:40,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:40,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:40,457 INFO L280 TraceCheckUtils]: 0: Hoare triple {682#true} assume true; {682#true} is VALID [2020-07-18 06:35:40,457 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {682#true} {682#true} #119#return; {682#true} is VALID [2020-07-18 06:35:40,458 INFO L263 TraceCheckUtils]: 0: Hoare triple {682#true} call ULTIMATE.init(); {682#true} is VALID [2020-07-18 06:35:40,458 INFO L280 TraceCheckUtils]: 1: Hoare triple {682#true} assume true; {682#true} is VALID [2020-07-18 06:35:40,458 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {682#true} {682#true} #119#return; {682#true} is VALID [2020-07-18 06:35:40,459 INFO L263 TraceCheckUtils]: 3: Hoare triple {682#true} call #t~ret10 := main(); {682#true} is VALID [2020-07-18 06:35:40,459 INFO L280 TraceCheckUtils]: 4: Hoare triple {682#true} havoc ~len~0; {682#true} is VALID [2020-07-18 06:35:40,459 INFO L280 TraceCheckUtils]: 5: Hoare triple {682#true} havoc ~i~0; {682#true} is VALID [2020-07-18 06:35:40,459 INFO L280 TraceCheckUtils]: 6: Hoare triple {682#true} havoc ~j~0; {682#true} is VALID [2020-07-18 06:35:40,460 INFO L280 TraceCheckUtils]: 7: Hoare triple {682#true} havoc ~bufsize~0; {682#true} is VALID [2020-07-18 06:35:40,460 INFO L280 TraceCheckUtils]: 8: Hoare triple {682#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {682#true} is VALID [2020-07-18 06:35:40,460 INFO L280 TraceCheckUtils]: 9: Hoare triple {682#true} ~bufsize~0 := #t~nondet0; {682#true} is VALID [2020-07-18 06:35:40,461 INFO L280 TraceCheckUtils]: 10: Hoare triple {682#true} havoc #t~nondet0; {682#true} is VALID [2020-07-18 06:35:40,461 INFO L280 TraceCheckUtils]: 11: Hoare triple {682#true} assume !(~bufsize~0 < 0); {682#true} is VALID [2020-07-18 06:35:40,461 INFO L280 TraceCheckUtils]: 12: Hoare triple {682#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {682#true} is VALID [2020-07-18 06:35:40,461 INFO L280 TraceCheckUtils]: 13: Hoare triple {682#true} ~len~0 := #t~nondet1; {682#true} is VALID [2020-07-18 06:35:40,462 INFO L280 TraceCheckUtils]: 14: Hoare triple {682#true} havoc #t~nondet1; {682#true} is VALID [2020-07-18 06:35:40,462 INFO L280 TraceCheckUtils]: 15: Hoare triple {682#true} ~limit~0 := ~bufsize~0 - 4; {682#true} is VALID [2020-07-18 06:35:40,462 INFO L280 TraceCheckUtils]: 16: Hoare triple {682#true} ~i~0 := 0; {682#true} is VALID [2020-07-18 06:35:40,463 INFO L280 TraceCheckUtils]: 17: Hoare triple {682#true} assume !!(~i~0 < ~len~0); {686#(< main_~i~0 main_~len~0)} is VALID [2020-07-18 06:35:40,464 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 [2020-07-18 06:35:40,465 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 [2020-07-18 06:35:40,465 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 [2020-07-18 06:35:40,467 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 [2020-07-18 06:35:40,468 INFO L280 TraceCheckUtils]: 22: Hoare triple {687#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {688#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-18 06:35:40,468 INFO L280 TraceCheckUtils]: 23: Hoare triple {688#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {683#false} is VALID [2020-07-18 06:35:40,469 INFO L280 TraceCheckUtils]: 24: Hoare triple {683#false} assume !false; {683#false} is VALID [2020-07-18 06:35:40,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 06:35:40,470 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [432033083] [2020-07-18 06:35:40,470 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 06:35:40,471 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-18 06:35:40,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901682082] [2020-07-18 06:35:40,473 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-07-18 06:35:40,473 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 06:35:40,473 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-18 06:35:40,502 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:35:40,502 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-18 06:35:40,502 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 06:35:40,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-18 06:35:40,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-18 06:35:40,503 INFO L87 Difference]: Start difference. First operand 73 states and 91 transitions. Second operand 5 states. [2020-07-18 06:35:40,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:35:40,951 INFO L93 Difference]: Finished difference Result 85 states and 102 transitions. [2020-07-18 06:35:40,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-18 06:35:40,951 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-07-18 06:35:40,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 06:35:40,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-18 06:35:40,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 94 transitions. [2020-07-18 06:35:40,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-18 06:35:40,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 94 transitions. [2020-07-18 06:35:40,959 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 94 transitions. [2020-07-18 06:35:41,088 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 94 edges. 94 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:35:41,092 INFO L225 Difference]: With dead ends: 85 [2020-07-18 06:35:41,092 INFO L226 Difference]: Without dead ends: 83 [2020-07-18 06:35:41,093 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 [2020-07-18 06:35:41,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-07-18 06:35:41,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 81. [2020-07-18 06:35:41,172 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 06:35:41,172 INFO L82 GeneralOperation]: Start isEquivalent. First operand 83 states. Second operand 81 states. [2020-07-18 06:35:41,173 INFO L74 IsIncluded]: Start isIncluded. First operand 83 states. Second operand 81 states. [2020-07-18 06:35:41,173 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 81 states. [2020-07-18 06:35:41,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:35:41,178 INFO L93 Difference]: Finished difference Result 83 states and 100 transitions. [2020-07-18 06:35:41,178 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 100 transitions. [2020-07-18 06:35:41,180 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:35:41,180 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:35:41,180 INFO L74 IsIncluded]: Start isIncluded. First operand 81 states. Second operand 83 states. [2020-07-18 06:35:41,180 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 83 states. [2020-07-18 06:35:41,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:35:41,185 INFO L93 Difference]: Finished difference Result 83 states and 100 transitions. [2020-07-18 06:35:41,186 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 100 transitions. [2020-07-18 06:35:41,187 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:35:41,187 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:35:41,187 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 06:35:41,187 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 06:35:41,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-07-18 06:35:41,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 97 transitions. [2020-07-18 06:35:41,192 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 97 transitions. Word has length 25 [2020-07-18 06:35:41,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 06:35:41,193 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 97 transitions. [2020-07-18 06:35:41,193 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-18 06:35:41,193 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 81 states and 97 transitions. [2020-07-18 06:35:41,302 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 97 edges. 97 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:35:41,302 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 97 transitions. [2020-07-18 06:35:41,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-18 06:35:41,304 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 06:35:41,304 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] [2020-07-18 06:35:41,304 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-18 06:35:41,304 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 06:35:41,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 06:35:41,305 INFO L82 PathProgramCache]: Analyzing trace with hash -1771333938, now seen corresponding path program 1 times [2020-07-18 06:35:41,305 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 06:35:41,305 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1465444581] [2020-07-18 06:35:41,306 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 06:35:41,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:41,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:41,380 INFO L280 TraceCheckUtils]: 0: Hoare triple {1191#true} assume true; {1191#true} is VALID [2020-07-18 06:35:41,381 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {1191#true} {1191#true} #119#return; {1191#true} is VALID [2020-07-18 06:35:41,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:41,391 INFO L280 TraceCheckUtils]: 0: Hoare triple {1191#true} ~cond := #in~cond; {1191#true} is VALID [2020-07-18 06:35:41,391 INFO L280 TraceCheckUtils]: 1: Hoare triple {1191#true} assume !(0 == ~cond); {1191#true} is VALID [2020-07-18 06:35:41,391 INFO L280 TraceCheckUtils]: 2: Hoare triple {1191#true} assume true; {1191#true} is VALID [2020-07-18 06:35:41,392 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {1191#true} {1195#(<= 0 main_~i~0)} #123#return; {1195#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:41,393 INFO L263 TraceCheckUtils]: 0: Hoare triple {1191#true} call ULTIMATE.init(); {1191#true} is VALID [2020-07-18 06:35:41,393 INFO L280 TraceCheckUtils]: 1: Hoare triple {1191#true} assume true; {1191#true} is VALID [2020-07-18 06:35:41,394 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {1191#true} {1191#true} #119#return; {1191#true} is VALID [2020-07-18 06:35:41,394 INFO L263 TraceCheckUtils]: 3: Hoare triple {1191#true} call #t~ret10 := main(); {1191#true} is VALID [2020-07-18 06:35:41,394 INFO L280 TraceCheckUtils]: 4: Hoare triple {1191#true} havoc ~len~0; {1191#true} is VALID [2020-07-18 06:35:41,394 INFO L280 TraceCheckUtils]: 5: Hoare triple {1191#true} havoc ~i~0; {1191#true} is VALID [2020-07-18 06:35:41,395 INFO L280 TraceCheckUtils]: 6: Hoare triple {1191#true} havoc ~j~0; {1191#true} is VALID [2020-07-18 06:35:41,395 INFO L280 TraceCheckUtils]: 7: Hoare triple {1191#true} havoc ~bufsize~0; {1191#true} is VALID [2020-07-18 06:35:41,395 INFO L280 TraceCheckUtils]: 8: Hoare triple {1191#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {1191#true} is VALID [2020-07-18 06:35:41,395 INFO L280 TraceCheckUtils]: 9: Hoare triple {1191#true} ~bufsize~0 := #t~nondet0; {1191#true} is VALID [2020-07-18 06:35:41,396 INFO L280 TraceCheckUtils]: 10: Hoare triple {1191#true} havoc #t~nondet0; {1191#true} is VALID [2020-07-18 06:35:41,396 INFO L280 TraceCheckUtils]: 11: Hoare triple {1191#true} assume !(~bufsize~0 < 0); {1191#true} is VALID [2020-07-18 06:35:41,396 INFO L280 TraceCheckUtils]: 12: Hoare triple {1191#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {1191#true} is VALID [2020-07-18 06:35:41,397 INFO L280 TraceCheckUtils]: 13: Hoare triple {1191#true} ~len~0 := #t~nondet1; {1191#true} is VALID [2020-07-18 06:35:41,397 INFO L280 TraceCheckUtils]: 14: Hoare triple {1191#true} havoc #t~nondet1; {1191#true} is VALID [2020-07-18 06:35:41,397 INFO L280 TraceCheckUtils]: 15: Hoare triple {1191#true} ~limit~0 := ~bufsize~0 - 4; {1191#true} is VALID [2020-07-18 06:35:41,398 INFO L280 TraceCheckUtils]: 16: Hoare triple {1191#true} ~i~0 := 0; {1195#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:41,398 INFO L280 TraceCheckUtils]: 17: Hoare triple {1195#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0); {1195#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:41,399 INFO L280 TraceCheckUtils]: 18: Hoare triple {1195#(<= 0 main_~i~0)} ~j~0 := 0; {1195#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:41,400 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 [2020-07-18 06:35:41,400 INFO L280 TraceCheckUtils]: 20: Hoare triple {1195#(<= 0 main_~i~0)} assume 1 + ~i~0 < ~len~0; {1195#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:41,400 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 [2020-07-18 06:35:41,401 INFO L280 TraceCheckUtils]: 22: Hoare triple {1191#true} ~cond := #in~cond; {1191#true} is VALID [2020-07-18 06:35:41,401 INFO L280 TraceCheckUtils]: 23: Hoare triple {1191#true} assume !(0 == ~cond); {1191#true} is VALID [2020-07-18 06:35:41,401 INFO L280 TraceCheckUtils]: 24: Hoare triple {1191#true} assume true; {1191#true} is VALID [2020-07-18 06:35:41,402 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {1191#true} {1195#(<= 0 main_~i~0)} #123#return; {1195#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:41,403 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 [2020-07-18 06:35:41,404 INFO L280 TraceCheckUtils]: 27: Hoare triple {1200#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {1201#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-18 06:35:41,404 INFO L280 TraceCheckUtils]: 28: Hoare triple {1201#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {1192#false} is VALID [2020-07-18 06:35:41,404 INFO L280 TraceCheckUtils]: 29: Hoare triple {1192#false} assume !false; {1192#false} is VALID [2020-07-18 06:35:41,406 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 06:35:41,406 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1465444581] [2020-07-18 06:35:41,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 06:35:41,407 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-18 06:35:41,407 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680496708] [2020-07-18 06:35:41,407 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-07-18 06:35:41,408 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 06:35:41,408 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-18 06:35:41,451 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:35:41,452 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-18 06:35:41,452 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 06:35:41,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-18 06:35:41,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-18 06:35:41,453 INFO L87 Difference]: Start difference. First operand 81 states and 97 transitions. Second operand 5 states. [2020-07-18 06:35:41,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:35:41,985 INFO L93 Difference]: Finished difference Result 116 states and 145 transitions. [2020-07-18 06:35:41,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-18 06:35:41,986 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-07-18 06:35:41,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 06:35:41,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-18 06:35:41,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 132 transitions. [2020-07-18 06:35:41,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-18 06:35:41,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 132 transitions. [2020-07-18 06:35:41,993 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 132 transitions. [2020-07-18 06:35:42,148 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 132 edges. 132 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:35:42,155 INFO L225 Difference]: With dead ends: 116 [2020-07-18 06:35:42,155 INFO L226 Difference]: Without dead ends: 114 [2020-07-18 06:35:42,156 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 [2020-07-18 06:35:42,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-07-18 06:35:42,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 100. [2020-07-18 06:35:42,269 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 06:35:42,269 INFO L82 GeneralOperation]: Start isEquivalent. First operand 114 states. Second operand 100 states. [2020-07-18 06:35:42,269 INFO L74 IsIncluded]: Start isIncluded. First operand 114 states. Second operand 100 states. [2020-07-18 06:35:42,269 INFO L87 Difference]: Start difference. First operand 114 states. Second operand 100 states. [2020-07-18 06:35:42,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:35:42,276 INFO L93 Difference]: Finished difference Result 114 states and 143 transitions. [2020-07-18 06:35:42,277 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 143 transitions. [2020-07-18 06:35:42,278 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:35:42,278 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:35:42,278 INFO L74 IsIncluded]: Start isIncluded. First operand 100 states. Second operand 114 states. [2020-07-18 06:35:42,278 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 114 states. [2020-07-18 06:35:42,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:35:42,285 INFO L93 Difference]: Finished difference Result 114 states and 143 transitions. [2020-07-18 06:35:42,286 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 143 transitions. [2020-07-18 06:35:42,286 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:35:42,287 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:35:42,287 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 06:35:42,287 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 06:35:42,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-07-18 06:35:42,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 125 transitions. [2020-07-18 06:35:42,292 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 125 transitions. Word has length 30 [2020-07-18 06:35:42,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 06:35:42,293 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 125 transitions. [2020-07-18 06:35:42,293 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-18 06:35:42,293 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 100 states and 125 transitions. [2020-07-18 06:35:42,458 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 125 edges. 125 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:35:42,458 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 125 transitions. [2020-07-18 06:35:42,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-07-18 06:35:42,459 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 06:35:42,460 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] [2020-07-18 06:35:42,460 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-18 06:35:42,460 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 06:35:42,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 06:35:42,461 INFO L82 PathProgramCache]: Analyzing trace with hash 456630219, now seen corresponding path program 1 times [2020-07-18 06:35:42,461 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 06:35:42,462 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1990029920] [2020-07-18 06:35:42,462 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 06:35:42,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:42,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:42,586 INFO L280 TraceCheckUtils]: 0: Hoare triple {1866#true} assume true; {1866#true} is VALID [2020-07-18 06:35:42,586 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {1866#true} {1866#true} #119#return; {1866#true} is VALID [2020-07-18 06:35:42,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:42,595 INFO L280 TraceCheckUtils]: 0: Hoare triple {1866#true} ~cond := #in~cond; {1866#true} is VALID [2020-07-18 06:35:42,595 INFO L280 TraceCheckUtils]: 1: Hoare triple {1866#true} assume !(0 == ~cond); {1866#true} is VALID [2020-07-18 06:35:42,595 INFO L280 TraceCheckUtils]: 2: Hoare triple {1866#true} assume true; {1866#true} is VALID [2020-07-18 06:35:42,596 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 [2020-07-18 06:35:42,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:42,603 INFO L280 TraceCheckUtils]: 0: Hoare triple {1866#true} ~cond := #in~cond; {1866#true} is VALID [2020-07-18 06:35:42,603 INFO L280 TraceCheckUtils]: 1: Hoare triple {1866#true} assume !(0 == ~cond); {1866#true} is VALID [2020-07-18 06:35:42,603 INFO L280 TraceCheckUtils]: 2: Hoare triple {1866#true} assume true; {1866#true} is VALID [2020-07-18 06:35:42,604 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 [2020-07-18 06:35:42,605 INFO L263 TraceCheckUtils]: 0: Hoare triple {1866#true} call ULTIMATE.init(); {1866#true} is VALID [2020-07-18 06:35:42,605 INFO L280 TraceCheckUtils]: 1: Hoare triple {1866#true} assume true; {1866#true} is VALID [2020-07-18 06:35:42,605 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {1866#true} {1866#true} #119#return; {1866#true} is VALID [2020-07-18 06:35:42,606 INFO L263 TraceCheckUtils]: 3: Hoare triple {1866#true} call #t~ret10 := main(); {1866#true} is VALID [2020-07-18 06:35:42,606 INFO L280 TraceCheckUtils]: 4: Hoare triple {1866#true} havoc ~len~0; {1866#true} is VALID [2020-07-18 06:35:42,606 INFO L280 TraceCheckUtils]: 5: Hoare triple {1866#true} havoc ~i~0; {1866#true} is VALID [2020-07-18 06:35:42,606 INFO L280 TraceCheckUtils]: 6: Hoare triple {1866#true} havoc ~j~0; {1866#true} is VALID [2020-07-18 06:35:42,607 INFO L280 TraceCheckUtils]: 7: Hoare triple {1866#true} havoc ~bufsize~0; {1866#true} is VALID [2020-07-18 06:35:42,607 INFO L280 TraceCheckUtils]: 8: Hoare triple {1866#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {1866#true} is VALID [2020-07-18 06:35:42,607 INFO L280 TraceCheckUtils]: 9: Hoare triple {1866#true} ~bufsize~0 := #t~nondet0; {1866#true} is VALID [2020-07-18 06:35:42,608 INFO L280 TraceCheckUtils]: 10: Hoare triple {1866#true} havoc #t~nondet0; {1866#true} is VALID [2020-07-18 06:35:42,608 INFO L280 TraceCheckUtils]: 11: Hoare triple {1866#true} assume !(~bufsize~0 < 0); {1866#true} is VALID [2020-07-18 06:35:42,608 INFO L280 TraceCheckUtils]: 12: Hoare triple {1866#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {1866#true} is VALID [2020-07-18 06:35:42,608 INFO L280 TraceCheckUtils]: 13: Hoare triple {1866#true} ~len~0 := #t~nondet1; {1866#true} is VALID [2020-07-18 06:35:42,609 INFO L280 TraceCheckUtils]: 14: Hoare triple {1866#true} havoc #t~nondet1; {1866#true} is VALID [2020-07-18 06:35:42,610 INFO L280 TraceCheckUtils]: 15: Hoare triple {1866#true} ~limit~0 := ~bufsize~0 - 4; {1870#(<= (+ main_~limit~0 4) main_~bufsize~0)} is VALID [2020-07-18 06:35:42,610 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 [2020-07-18 06:35:42,611 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 [2020-07-18 06:35:42,611 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 [2020-07-18 06:35:42,612 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 [2020-07-18 06:35:42,613 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 [2020-07-18 06:35:42,613 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 [2020-07-18 06:35:42,614 INFO L280 TraceCheckUtils]: 22: Hoare triple {1866#true} ~cond := #in~cond; {1866#true} is VALID [2020-07-18 06:35:42,614 INFO L280 TraceCheckUtils]: 23: Hoare triple {1866#true} assume !(0 == ~cond); {1866#true} is VALID [2020-07-18 06:35:42,614 INFO L280 TraceCheckUtils]: 24: Hoare triple {1866#true} assume true; {1866#true} is VALID [2020-07-18 06:35:42,616 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 [2020-07-18 06:35:42,616 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 [2020-07-18 06:35:42,616 INFO L280 TraceCheckUtils]: 27: Hoare triple {1866#true} ~cond := #in~cond; {1866#true} is VALID [2020-07-18 06:35:42,617 INFO L280 TraceCheckUtils]: 28: Hoare triple {1866#true} assume !(0 == ~cond); {1866#true} is VALID [2020-07-18 06:35:42,617 INFO L280 TraceCheckUtils]: 29: Hoare triple {1866#true} assume true; {1866#true} is VALID [2020-07-18 06:35:42,618 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 [2020-07-18 06:35:42,619 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 [2020-07-18 06:35:42,620 INFO L280 TraceCheckUtils]: 32: Hoare triple {1880#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {1881#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-18 06:35:42,621 INFO L280 TraceCheckUtils]: 33: Hoare triple {1881#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {1867#false} is VALID [2020-07-18 06:35:42,621 INFO L280 TraceCheckUtils]: 34: Hoare triple {1867#false} assume !false; {1867#false} is VALID [2020-07-18 06:35:42,624 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-18 06:35:42,624 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1990029920] [2020-07-18 06:35:42,625 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 06:35:42,625 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-18 06:35:42,625 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441695635] [2020-07-18 06:35:42,626 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-07-18 06:35:42,626 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 06:35:42,626 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-18 06:35:42,675 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:35:42,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-18 06:35:42,676 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 06:35:42,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-18 06:35:42,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-18 06:35:42,676 INFO L87 Difference]: Start difference. First operand 100 states and 125 transitions. Second operand 6 states. [2020-07-18 06:35:43,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:35:43,317 INFO L93 Difference]: Finished difference Result 106 states and 130 transitions. [2020-07-18 06:35:43,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-18 06:35:43,318 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-07-18 06:35:43,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 06:35:43,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-18 06:35:43,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 91 transitions. [2020-07-18 06:35:43,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-18 06:35:43,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 91 transitions. [2020-07-18 06:35:43,323 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 91 transitions. [2020-07-18 06:35:43,443 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 91 edges. 91 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:35:43,446 INFO L225 Difference]: With dead ends: 106 [2020-07-18 06:35:43,447 INFO L226 Difference]: Without dead ends: 104 [2020-07-18 06:35:43,447 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 [2020-07-18 06:35:43,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-07-18 06:35:43,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2020-07-18 06:35:43,602 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 06:35:43,602 INFO L82 GeneralOperation]: Start isEquivalent. First operand 104 states. Second operand 104 states. [2020-07-18 06:35:43,602 INFO L74 IsIncluded]: Start isIncluded. First operand 104 states. Second operand 104 states. [2020-07-18 06:35:43,603 INFO L87 Difference]: Start difference. First operand 104 states. Second operand 104 states. [2020-07-18 06:35:43,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:35:43,612 INFO L93 Difference]: Finished difference Result 104 states and 128 transitions. [2020-07-18 06:35:43,612 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 128 transitions. [2020-07-18 06:35:43,613 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:35:43,613 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:35:43,614 INFO L74 IsIncluded]: Start isIncluded. First operand 104 states. Second operand 104 states. [2020-07-18 06:35:43,614 INFO L87 Difference]: Start difference. First operand 104 states. Second operand 104 states. [2020-07-18 06:35:43,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:35:43,621 INFO L93 Difference]: Finished difference Result 104 states and 128 transitions. [2020-07-18 06:35:43,621 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 128 transitions. [2020-07-18 06:35:43,622 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:35:43,622 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:35:43,622 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 06:35:43,622 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 06:35:43,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-07-18 06:35:43,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 128 transitions. [2020-07-18 06:35:43,629 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 128 transitions. Word has length 35 [2020-07-18 06:35:43,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 06:35:43,629 INFO L479 AbstractCegarLoop]: Abstraction has 104 states and 128 transitions. [2020-07-18 06:35:43,629 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-18 06:35:43,630 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 104 states and 128 transitions. [2020-07-18 06:35:43,813 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 128 edges. 128 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:35:43,814 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 128 transitions. [2020-07-18 06:35:43,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-07-18 06:35:43,815 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 06:35:43,815 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] [2020-07-18 06:35:43,816 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-18 06:35:43,816 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 06:35:43,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 06:35:43,816 INFO L82 PathProgramCache]: Analyzing trace with hash 364478305, now seen corresponding path program 1 times [2020-07-18 06:35:43,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 06:35:43,817 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [116587568] [2020-07-18 06:35:43,817 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 06:35:43,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:43,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:43,891 INFO L280 TraceCheckUtils]: 0: Hoare triple {2516#true} assume true; {2516#true} is VALID [2020-07-18 06:35:43,891 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {2516#true} {2516#true} #119#return; {2516#true} is VALID [2020-07-18 06:35:43,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:43,907 INFO L280 TraceCheckUtils]: 0: Hoare triple {2516#true} ~cond := #in~cond; {2516#true} is VALID [2020-07-18 06:35:43,907 INFO L280 TraceCheckUtils]: 1: Hoare triple {2516#true} assume !(0 == ~cond); {2516#true} is VALID [2020-07-18 06:35:43,907 INFO L280 TraceCheckUtils]: 2: Hoare triple {2516#true} assume true; {2516#true} is VALID [2020-07-18 06:35:43,908 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {2516#true} {2520#(<= 0 main_~j~0)} #147#return; {2520#(<= 0 main_~j~0)} is VALID [2020-07-18 06:35:43,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:43,923 INFO L280 TraceCheckUtils]: 0: Hoare triple {2516#true} ~cond := #in~cond; {2516#true} is VALID [2020-07-18 06:35:43,923 INFO L280 TraceCheckUtils]: 1: Hoare triple {2516#true} assume !(0 == ~cond); {2516#true} is VALID [2020-07-18 06:35:43,924 INFO L280 TraceCheckUtils]: 2: Hoare triple {2516#true} assume true; {2516#true} is VALID [2020-07-18 06:35:43,924 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {2516#true} {2520#(<= 0 main_~j~0)} #149#return; {2520#(<= 0 main_~j~0)} is VALID [2020-07-18 06:35:43,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:43,936 INFO L280 TraceCheckUtils]: 0: Hoare triple {2516#true} ~cond := #in~cond; {2516#true} is VALID [2020-07-18 06:35:43,936 INFO L280 TraceCheckUtils]: 1: Hoare triple {2516#true} assume !(0 == ~cond); {2516#true} is VALID [2020-07-18 06:35:43,936 INFO L280 TraceCheckUtils]: 2: Hoare triple {2516#true} assume true; {2516#true} is VALID [2020-07-18 06:35:43,937 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {2516#true} {2520#(<= 0 main_~j~0)} #151#return; {2520#(<= 0 main_~j~0)} is VALID [2020-07-18 06:35:43,937 INFO L263 TraceCheckUtils]: 0: Hoare triple {2516#true} call ULTIMATE.init(); {2516#true} is VALID [2020-07-18 06:35:43,938 INFO L280 TraceCheckUtils]: 1: Hoare triple {2516#true} assume true; {2516#true} is VALID [2020-07-18 06:35:43,938 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {2516#true} {2516#true} #119#return; {2516#true} is VALID [2020-07-18 06:35:43,938 INFO L263 TraceCheckUtils]: 3: Hoare triple {2516#true} call #t~ret10 := main(); {2516#true} is VALID [2020-07-18 06:35:43,938 INFO L280 TraceCheckUtils]: 4: Hoare triple {2516#true} havoc ~len~0; {2516#true} is VALID [2020-07-18 06:35:43,939 INFO L280 TraceCheckUtils]: 5: Hoare triple {2516#true} havoc ~i~0; {2516#true} is VALID [2020-07-18 06:35:43,939 INFO L280 TraceCheckUtils]: 6: Hoare triple {2516#true} havoc ~j~0; {2516#true} is VALID [2020-07-18 06:35:43,939 INFO L280 TraceCheckUtils]: 7: Hoare triple {2516#true} havoc ~bufsize~0; {2516#true} is VALID [2020-07-18 06:35:43,940 INFO L280 TraceCheckUtils]: 8: Hoare triple {2516#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {2516#true} is VALID [2020-07-18 06:35:43,940 INFO L280 TraceCheckUtils]: 9: Hoare triple {2516#true} ~bufsize~0 := #t~nondet0; {2516#true} is VALID [2020-07-18 06:35:43,940 INFO L280 TraceCheckUtils]: 10: Hoare triple {2516#true} havoc #t~nondet0; {2516#true} is VALID [2020-07-18 06:35:43,940 INFO L280 TraceCheckUtils]: 11: Hoare triple {2516#true} assume !(~bufsize~0 < 0); {2516#true} is VALID [2020-07-18 06:35:43,941 INFO L280 TraceCheckUtils]: 12: Hoare triple {2516#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {2516#true} is VALID [2020-07-18 06:35:43,941 INFO L280 TraceCheckUtils]: 13: Hoare triple {2516#true} ~len~0 := #t~nondet1; {2516#true} is VALID [2020-07-18 06:35:43,941 INFO L280 TraceCheckUtils]: 14: Hoare triple {2516#true} havoc #t~nondet1; {2516#true} is VALID [2020-07-18 06:35:43,941 INFO L280 TraceCheckUtils]: 15: Hoare triple {2516#true} ~limit~0 := ~bufsize~0 - 4; {2516#true} is VALID [2020-07-18 06:35:43,942 INFO L280 TraceCheckUtils]: 16: Hoare triple {2516#true} ~i~0 := 0; {2516#true} is VALID [2020-07-18 06:35:43,942 INFO L280 TraceCheckUtils]: 17: Hoare triple {2516#true} assume !!(~i~0 < ~len~0); {2516#true} is VALID [2020-07-18 06:35:43,943 INFO L280 TraceCheckUtils]: 18: Hoare triple {2516#true} ~j~0 := 0; {2520#(<= 0 main_~j~0)} is VALID [2020-07-18 06:35:43,943 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 [2020-07-18 06:35:43,944 INFO L280 TraceCheckUtils]: 20: Hoare triple {2520#(<= 0 main_~j~0)} assume !(1 + ~i~0 < ~len~0); {2520#(<= 0 main_~j~0)} is VALID [2020-07-18 06:35:43,944 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 [2020-07-18 06:35:43,944 INFO L280 TraceCheckUtils]: 22: Hoare triple {2516#true} ~cond := #in~cond; {2516#true} is VALID [2020-07-18 06:35:43,945 INFO L280 TraceCheckUtils]: 23: Hoare triple {2516#true} assume !(0 == ~cond); {2516#true} is VALID [2020-07-18 06:35:43,945 INFO L280 TraceCheckUtils]: 24: Hoare triple {2516#true} assume true; {2516#true} is VALID [2020-07-18 06:35:43,946 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {2516#true} {2520#(<= 0 main_~j~0)} #147#return; {2520#(<= 0 main_~j~0)} is VALID [2020-07-18 06:35:43,946 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 [2020-07-18 06:35:43,946 INFO L280 TraceCheckUtils]: 27: Hoare triple {2516#true} ~cond := #in~cond; {2516#true} is VALID [2020-07-18 06:35:43,946 INFO L280 TraceCheckUtils]: 28: Hoare triple {2516#true} assume !(0 == ~cond); {2516#true} is VALID [2020-07-18 06:35:43,947 INFO L280 TraceCheckUtils]: 29: Hoare triple {2516#true} assume true; {2516#true} is VALID [2020-07-18 06:35:43,947 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {2516#true} {2520#(<= 0 main_~j~0)} #149#return; {2520#(<= 0 main_~j~0)} is VALID [2020-07-18 06:35:43,948 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 [2020-07-18 06:35:43,948 INFO L280 TraceCheckUtils]: 32: Hoare triple {2516#true} ~cond := #in~cond; {2516#true} is VALID [2020-07-18 06:35:43,948 INFO L280 TraceCheckUtils]: 33: Hoare triple {2516#true} assume !(0 == ~cond); {2516#true} is VALID [2020-07-18 06:35:43,948 INFO L280 TraceCheckUtils]: 34: Hoare triple {2516#true} assume true; {2516#true} is VALID [2020-07-18 06:35:43,949 INFO L275 TraceCheckUtils]: 35: Hoare quadruple {2516#true} {2520#(<= 0 main_~j~0)} #151#return; {2520#(<= 0 main_~j~0)} is VALID [2020-07-18 06:35:43,950 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 [2020-07-18 06:35:43,952 INFO L280 TraceCheckUtils]: 37: Hoare triple {2533#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {2534#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-18 06:35:43,954 INFO L280 TraceCheckUtils]: 38: Hoare triple {2534#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {2517#false} is VALID [2020-07-18 06:35:43,955 INFO L280 TraceCheckUtils]: 39: Hoare triple {2517#false} assume !false; {2517#false} is VALID [2020-07-18 06:35:43,956 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-18 06:35:43,957 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [116587568] [2020-07-18 06:35:43,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 06:35:43,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-18 06:35:43,957 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210941389] [2020-07-18 06:35:43,958 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 40 [2020-07-18 06:35:43,958 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 06:35:43,958 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-18 06:35:43,991 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 34 edges. 34 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:35:43,991 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-18 06:35:43,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 06:35:43,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-18 06:35:43,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-18 06:35:43,993 INFO L87 Difference]: Start difference. First operand 104 states and 128 transitions. Second operand 5 states. [2020-07-18 06:35:44,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:35:44,598 INFO L93 Difference]: Finished difference Result 135 states and 172 transitions. [2020-07-18 06:35:44,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-18 06:35:44,599 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 40 [2020-07-18 06:35:44,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 06:35:44,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-18 06:35:44,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 126 transitions. [2020-07-18 06:35:44,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-18 06:35:44,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 126 transitions. [2020-07-18 06:35:44,605 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 126 transitions. [2020-07-18 06:35:44,751 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 126 edges. 126 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:35:44,756 INFO L225 Difference]: With dead ends: 135 [2020-07-18 06:35:44,756 INFO L226 Difference]: Without dead ends: 133 [2020-07-18 06:35:44,757 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 [2020-07-18 06:35:44,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-07-18 06:35:44,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 125. [2020-07-18 06:35:44,963 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 06:35:44,963 INFO L82 GeneralOperation]: Start isEquivalent. First operand 133 states. Second operand 125 states. [2020-07-18 06:35:44,963 INFO L74 IsIncluded]: Start isIncluded. First operand 133 states. Second operand 125 states. [2020-07-18 06:35:44,963 INFO L87 Difference]: Start difference. First operand 133 states. Second operand 125 states. [2020-07-18 06:35:44,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:35:44,976 INFO L93 Difference]: Finished difference Result 133 states and 170 transitions. [2020-07-18 06:35:44,976 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 170 transitions. [2020-07-18 06:35:44,982 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:35:44,983 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:35:44,983 INFO L74 IsIncluded]: Start isIncluded. First operand 125 states. Second operand 133 states. [2020-07-18 06:35:44,983 INFO L87 Difference]: Start difference. First operand 125 states. Second operand 133 states. [2020-07-18 06:35:44,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:35:44,993 INFO L93 Difference]: Finished difference Result 133 states and 170 transitions. [2020-07-18 06:35:44,993 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 170 transitions. [2020-07-18 06:35:44,994 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:35:44,994 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:35:44,994 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 06:35:44,994 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 06:35:44,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-07-18 06:35:45,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 162 transitions. [2020-07-18 06:35:45,001 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 162 transitions. Word has length 40 [2020-07-18 06:35:45,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 06:35:45,002 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 162 transitions. [2020-07-18 06:35:45,002 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-18 06:35:45,002 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 125 states and 162 transitions. [2020-07-18 06:35:45,219 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 162 edges. 162 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:35:45,219 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 162 transitions. [2020-07-18 06:35:45,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-07-18 06:35:45,221 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 06:35:45,222 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] [2020-07-18 06:35:45,222 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-18 06:35:45,222 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 06:35:45,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 06:35:45,223 INFO L82 PathProgramCache]: Analyzing trace with hash 914533499, now seen corresponding path program 1 times [2020-07-18 06:35:45,223 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 06:35:45,223 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [829197985] [2020-07-18 06:35:45,223 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 06:35:45,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:45,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:45,285 INFO L280 TraceCheckUtils]: 0: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-18 06:35:45,286 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {3325#true} {3325#true} #119#return; {3325#true} is VALID [2020-07-18 06:35:45,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:45,292 INFO L280 TraceCheckUtils]: 0: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-18 06:35:45,293 INFO L280 TraceCheckUtils]: 1: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-18 06:35:45,293 INFO L280 TraceCheckUtils]: 2: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-18 06:35:45,294 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 [2020-07-18 06:35:45,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:45,299 INFO L280 TraceCheckUtils]: 0: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-18 06:35:45,299 INFO L280 TraceCheckUtils]: 1: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-18 06:35:45,299 INFO L280 TraceCheckUtils]: 2: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-18 06:35:45,300 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 [2020-07-18 06:35:45,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:45,306 INFO L280 TraceCheckUtils]: 0: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-18 06:35:45,307 INFO L280 TraceCheckUtils]: 1: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-18 06:35:45,307 INFO L280 TraceCheckUtils]: 2: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-18 06:35:45,308 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 [2020-07-18 06:35:45,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:45,313 INFO L280 TraceCheckUtils]: 0: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-18 06:35:45,313 INFO L280 TraceCheckUtils]: 1: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-18 06:35:45,313 INFO L280 TraceCheckUtils]: 2: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-18 06:35:45,314 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 [2020-07-18 06:35:45,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:45,318 INFO L280 TraceCheckUtils]: 0: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-18 06:35:45,318 INFO L280 TraceCheckUtils]: 1: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-18 06:35:45,318 INFO L280 TraceCheckUtils]: 2: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-18 06:35:45,319 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {3325#true} {3326#false} #123#return; {3326#false} is VALID [2020-07-18 06:35:45,319 INFO L263 TraceCheckUtils]: 0: Hoare triple {3325#true} call ULTIMATE.init(); {3325#true} is VALID [2020-07-18 06:35:45,319 INFO L280 TraceCheckUtils]: 1: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-18 06:35:45,319 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {3325#true} {3325#true} #119#return; {3325#true} is VALID [2020-07-18 06:35:45,319 INFO L263 TraceCheckUtils]: 3: Hoare triple {3325#true} call #t~ret10 := main(); {3325#true} is VALID [2020-07-18 06:35:45,320 INFO L280 TraceCheckUtils]: 4: Hoare triple {3325#true} havoc ~len~0; {3325#true} is VALID [2020-07-18 06:35:45,320 INFO L280 TraceCheckUtils]: 5: Hoare triple {3325#true} havoc ~i~0; {3325#true} is VALID [2020-07-18 06:35:45,320 INFO L280 TraceCheckUtils]: 6: Hoare triple {3325#true} havoc ~j~0; {3325#true} is VALID [2020-07-18 06:35:45,320 INFO L280 TraceCheckUtils]: 7: Hoare triple {3325#true} havoc ~bufsize~0; {3325#true} is VALID [2020-07-18 06:35:45,321 INFO L280 TraceCheckUtils]: 8: Hoare triple {3325#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {3325#true} is VALID [2020-07-18 06:35:45,321 INFO L280 TraceCheckUtils]: 9: Hoare triple {3325#true} ~bufsize~0 := #t~nondet0; {3325#true} is VALID [2020-07-18 06:35:45,321 INFO L280 TraceCheckUtils]: 10: Hoare triple {3325#true} havoc #t~nondet0; {3325#true} is VALID [2020-07-18 06:35:45,321 INFO L280 TraceCheckUtils]: 11: Hoare triple {3325#true} assume !(~bufsize~0 < 0); {3325#true} is VALID [2020-07-18 06:35:45,322 INFO L280 TraceCheckUtils]: 12: Hoare triple {3325#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {3325#true} is VALID [2020-07-18 06:35:45,322 INFO L280 TraceCheckUtils]: 13: Hoare triple {3325#true} ~len~0 := #t~nondet1; {3325#true} is VALID [2020-07-18 06:35:45,322 INFO L280 TraceCheckUtils]: 14: Hoare triple {3325#true} havoc #t~nondet1; {3325#true} is VALID [2020-07-18 06:35:45,322 INFO L280 TraceCheckUtils]: 15: Hoare triple {3325#true} ~limit~0 := ~bufsize~0 - 4; {3325#true} is VALID [2020-07-18 06:35:45,323 INFO L280 TraceCheckUtils]: 16: Hoare triple {3325#true} ~i~0 := 0; {3325#true} is VALID [2020-07-18 06:35:45,323 INFO L280 TraceCheckUtils]: 17: Hoare triple {3325#true} assume !!(~i~0 < ~len~0); {3325#true} is VALID [2020-07-18 06:35:45,323 INFO L280 TraceCheckUtils]: 18: Hoare triple {3325#true} ~j~0 := 0; {3325#true} is VALID [2020-07-18 06:35:45,323 INFO L280 TraceCheckUtils]: 19: Hoare triple {3325#true} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {3325#true} is VALID [2020-07-18 06:35:45,327 INFO L280 TraceCheckUtils]: 20: Hoare triple {3325#true} assume !(1 + ~i~0 < ~len~0); {3329#(<= main_~len~0 (+ main_~i~0 1))} is VALID [2020-07-18 06:35:45,327 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 [2020-07-18 06:35:45,327 INFO L280 TraceCheckUtils]: 22: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-18 06:35:45,327 INFO L280 TraceCheckUtils]: 23: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-18 06:35:45,328 INFO L280 TraceCheckUtils]: 24: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-18 06:35:45,328 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 [2020-07-18 06:35:45,328 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 [2020-07-18 06:35:45,329 INFO L280 TraceCheckUtils]: 27: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-18 06:35:45,329 INFO L280 TraceCheckUtils]: 28: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-18 06:35:45,329 INFO L280 TraceCheckUtils]: 29: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-18 06:35:45,330 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 [2020-07-18 06:35:45,330 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 [2020-07-18 06:35:45,330 INFO L280 TraceCheckUtils]: 32: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-18 06:35:45,330 INFO L280 TraceCheckUtils]: 33: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-18 06:35:45,330 INFO L280 TraceCheckUtils]: 34: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-18 06:35:45,331 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 [2020-07-18 06:35:45,331 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 [2020-07-18 06:35:45,331 INFO L280 TraceCheckUtils]: 37: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-18 06:35:45,332 INFO L280 TraceCheckUtils]: 38: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-18 06:35:45,332 INFO L280 TraceCheckUtils]: 39: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-18 06:35:45,332 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 [2020-07-18 06:35:45,333 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 [2020-07-18 06:35:45,334 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 [2020-07-18 06:35:45,336 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 [2020-07-18 06:35:45,339 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 [2020-07-18 06:35:45,340 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 [2020-07-18 06:35:45,347 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 [2020-07-18 06:35:45,348 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 [2020-07-18 06:35:45,349 INFO L280 TraceCheckUtils]: 48: Hoare triple {3347#(<= main_~len~0 main_~i~0)} assume 1 + ~i~0 < ~len~0; {3326#false} is VALID [2020-07-18 06:35:45,349 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 [2020-07-18 06:35:45,349 INFO L280 TraceCheckUtils]: 50: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-18 06:35:45,349 INFO L280 TraceCheckUtils]: 51: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-18 06:35:45,349 INFO L280 TraceCheckUtils]: 52: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-18 06:35:45,349 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {3325#true} {3326#false} #123#return; {3326#false} is VALID [2020-07-18 06:35:45,350 INFO L263 TraceCheckUtils]: 54: Hoare triple {3326#false} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {3326#false} is VALID [2020-07-18 06:35:45,350 INFO L280 TraceCheckUtils]: 55: Hoare triple {3326#false} ~cond := #in~cond; {3326#false} is VALID [2020-07-18 06:35:45,350 INFO L280 TraceCheckUtils]: 56: Hoare triple {3326#false} assume 0 == ~cond; {3326#false} is VALID [2020-07-18 06:35:45,350 INFO L280 TraceCheckUtils]: 57: Hoare triple {3326#false} assume !false; {3326#false} is VALID [2020-07-18 06:35:45,353 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-07-18 06:35:45,353 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [829197985] [2020-07-18 06:35:45,354 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 06:35:45,354 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-18 06:35:45,354 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176374700] [2020-07-18 06:35:45,355 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2020-07-18 06:35:45,355 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 06:35:45,355 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-18 06:35:45,411 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 46 edges. 46 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:35:45,411 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-18 06:35:45,411 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 06:35:45,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-18 06:35:45,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-18 06:35:45,412 INFO L87 Difference]: Start difference. First operand 125 states and 162 transitions. Second operand 5 states. [2020-07-18 06:35:45,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:35:45,936 INFO L93 Difference]: Finished difference Result 229 states and 302 transitions. [2020-07-18 06:35:45,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-18 06:35:45,936 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2020-07-18 06:35:45,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 06:35:45,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-18 06:35:45,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 172 transitions. [2020-07-18 06:35:45,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-18 06:35:45,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 172 transitions. [2020-07-18 06:35:45,945 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 172 transitions. [2020-07-18 06:35:46,117 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 172 edges. 172 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:35:46,124 INFO L225 Difference]: With dead ends: 229 [2020-07-18 06:35:46,124 INFO L226 Difference]: Without dead ends: 128 [2020-07-18 06:35:46,126 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 [2020-07-18 06:35:46,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-07-18 06:35:46,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2020-07-18 06:35:46,351 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 06:35:46,351 INFO L82 GeneralOperation]: Start isEquivalent. First operand 128 states. Second operand 128 states. [2020-07-18 06:35:46,351 INFO L74 IsIncluded]: Start isIncluded. First operand 128 states. Second operand 128 states. [2020-07-18 06:35:46,351 INFO L87 Difference]: Start difference. First operand 128 states. Second operand 128 states. [2020-07-18 06:35:46,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:35:46,358 INFO L93 Difference]: Finished difference Result 128 states and 165 transitions. [2020-07-18 06:35:46,358 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 165 transitions. [2020-07-18 06:35:46,359 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:35:46,359 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:35:46,360 INFO L74 IsIncluded]: Start isIncluded. First operand 128 states. Second operand 128 states. [2020-07-18 06:35:46,360 INFO L87 Difference]: Start difference. First operand 128 states. Second operand 128 states. [2020-07-18 06:35:46,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:35:46,366 INFO L93 Difference]: Finished difference Result 128 states and 165 transitions. [2020-07-18 06:35:46,366 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 165 transitions. [2020-07-18 06:35:46,367 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:35:46,367 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:35:46,368 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 06:35:46,368 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 06:35:46,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-07-18 06:35:46,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 165 transitions. [2020-07-18 06:35:46,374 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 165 transitions. Word has length 58 [2020-07-18 06:35:46,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 06:35:46,374 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 165 transitions. [2020-07-18 06:35:46,374 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-18 06:35:46,374 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 128 states and 165 transitions. [2020-07-18 06:35:46,598 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 165 edges. 165 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:35:46,598 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 165 transitions. [2020-07-18 06:35:46,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-07-18 06:35:46,600 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 06:35:46,600 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] [2020-07-18 06:35:46,600 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-18 06:35:46,601 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 06:35:46,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 06:35:46,601 INFO L82 PathProgramCache]: Analyzing trace with hash -1807369608, now seen corresponding path program 1 times [2020-07-18 06:35:46,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 06:35:46,601 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [821090359] [2020-07-18 06:35:46,601 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 06:35:46,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:46,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:46,696 INFO L280 TraceCheckUtils]: 0: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-18 06:35:46,697 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {4328#true} {4328#true} #119#return; {4328#true} is VALID [2020-07-18 06:35:46,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:46,704 INFO L280 TraceCheckUtils]: 0: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-18 06:35:46,704 INFO L280 TraceCheckUtils]: 1: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-18 06:35:46,705 INFO L280 TraceCheckUtils]: 2: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-18 06:35:46,705 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {4328#true} {4332#(<= (+ main_~i~0 2) main_~len~0)} #123#return; {4332#(<= (+ main_~i~0 2) main_~len~0)} is VALID [2020-07-18 06:35:46,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:46,710 INFO L280 TraceCheckUtils]: 0: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-18 06:35:46,711 INFO L280 TraceCheckUtils]: 1: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-18 06:35:46,711 INFO L280 TraceCheckUtils]: 2: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-18 06:35:46,712 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {4328#true} {4332#(<= (+ main_~i~0 2) main_~len~0)} #125#return; {4332#(<= (+ main_~i~0 2) main_~len~0)} is VALID [2020-07-18 06:35:46,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:46,717 INFO L280 TraceCheckUtils]: 0: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-18 06:35:46,718 INFO L280 TraceCheckUtils]: 1: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-18 06:35:46,718 INFO L280 TraceCheckUtils]: 2: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-18 06:35:46,719 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {4328#true} {4332#(<= (+ main_~i~0 2) main_~len~0)} #127#return; {4332#(<= (+ main_~i~0 2) main_~len~0)} is VALID [2020-07-18 06:35:46,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:46,732 INFO L280 TraceCheckUtils]: 0: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-18 06:35:46,733 INFO L280 TraceCheckUtils]: 1: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-18 06:35:46,733 INFO L280 TraceCheckUtils]: 2: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-18 06:35:46,740 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {4328#true} {4332#(<= (+ main_~i~0 2) main_~len~0)} #129#return; {4332#(<= (+ main_~i~0 2) main_~len~0)} is VALID [2020-07-18 06:35:46,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:46,748 INFO L280 TraceCheckUtils]: 0: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-18 06:35:46,749 INFO L280 TraceCheckUtils]: 1: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-18 06:35:46,749 INFO L280 TraceCheckUtils]: 2: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-18 06:35:46,750 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {4328#true} {4332#(<= (+ main_~i~0 2) main_~len~0)} #131#return; {4332#(<= (+ main_~i~0 2) main_~len~0)} is VALID [2020-07-18 06:35:46,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:46,758 INFO L280 TraceCheckUtils]: 0: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-18 06:35:46,758 INFO L280 TraceCheckUtils]: 1: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-18 06:35:46,758 INFO L280 TraceCheckUtils]: 2: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-18 06:35:46,759 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {4328#true} {4332#(<= (+ main_~i~0 2) main_~len~0)} #133#return; {4332#(<= (+ main_~i~0 2) main_~len~0)} is VALID [2020-07-18 06:35:46,760 INFO L263 TraceCheckUtils]: 0: Hoare triple {4328#true} call ULTIMATE.init(); {4328#true} is VALID [2020-07-18 06:35:46,760 INFO L280 TraceCheckUtils]: 1: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-18 06:35:46,760 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {4328#true} {4328#true} #119#return; {4328#true} is VALID [2020-07-18 06:35:46,760 INFO L263 TraceCheckUtils]: 3: Hoare triple {4328#true} call #t~ret10 := main(); {4328#true} is VALID [2020-07-18 06:35:46,760 INFO L280 TraceCheckUtils]: 4: Hoare triple {4328#true} havoc ~len~0; {4328#true} is VALID [2020-07-18 06:35:46,761 INFO L280 TraceCheckUtils]: 5: Hoare triple {4328#true} havoc ~i~0; {4328#true} is VALID [2020-07-18 06:35:46,761 INFO L280 TraceCheckUtils]: 6: Hoare triple {4328#true} havoc ~j~0; {4328#true} is VALID [2020-07-18 06:35:46,763 INFO L280 TraceCheckUtils]: 7: Hoare triple {4328#true} havoc ~bufsize~0; {4328#true} is VALID [2020-07-18 06:35:46,764 INFO L280 TraceCheckUtils]: 8: Hoare triple {4328#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {4328#true} is VALID [2020-07-18 06:35:46,764 INFO L280 TraceCheckUtils]: 9: Hoare triple {4328#true} ~bufsize~0 := #t~nondet0; {4328#true} is VALID [2020-07-18 06:35:46,764 INFO L280 TraceCheckUtils]: 10: Hoare triple {4328#true} havoc #t~nondet0; {4328#true} is VALID [2020-07-18 06:35:46,764 INFO L280 TraceCheckUtils]: 11: Hoare triple {4328#true} assume !(~bufsize~0 < 0); {4328#true} is VALID [2020-07-18 06:35:46,765 INFO L280 TraceCheckUtils]: 12: Hoare triple {4328#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {4328#true} is VALID [2020-07-18 06:35:46,765 INFO L280 TraceCheckUtils]: 13: Hoare triple {4328#true} ~len~0 := #t~nondet1; {4328#true} is VALID [2020-07-18 06:35:46,765 INFO L280 TraceCheckUtils]: 14: Hoare triple {4328#true} havoc #t~nondet1; {4328#true} is VALID [2020-07-18 06:35:46,765 INFO L280 TraceCheckUtils]: 15: Hoare triple {4328#true} ~limit~0 := ~bufsize~0 - 4; {4328#true} is VALID [2020-07-18 06:35:46,765 INFO L280 TraceCheckUtils]: 16: Hoare triple {4328#true} ~i~0 := 0; {4328#true} is VALID [2020-07-18 06:35:46,766 INFO L280 TraceCheckUtils]: 17: Hoare triple {4328#true} assume !!(~i~0 < ~len~0); {4328#true} is VALID [2020-07-18 06:35:46,766 INFO L280 TraceCheckUtils]: 18: Hoare triple {4328#true} ~j~0 := 0; {4328#true} is VALID [2020-07-18 06:35:46,766 INFO L280 TraceCheckUtils]: 19: Hoare triple {4328#true} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {4328#true} is VALID [2020-07-18 06:35:46,776 INFO L280 TraceCheckUtils]: 20: Hoare triple {4328#true} assume 1 + ~i~0 < ~len~0; {4332#(<= (+ main_~i~0 2) main_~len~0)} is VALID [2020-07-18 06:35:46,776 INFO L263 TraceCheckUtils]: 21: Hoare triple {4332#(<= (+ main_~i~0 2) main_~len~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {4328#true} is VALID [2020-07-18 06:35:46,777 INFO L280 TraceCheckUtils]: 22: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-18 06:35:46,777 INFO L280 TraceCheckUtils]: 23: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-18 06:35:46,777 INFO L280 TraceCheckUtils]: 24: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-18 06:35:46,778 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {4328#true} {4332#(<= (+ main_~i~0 2) main_~len~0)} #123#return; {4332#(<= (+ main_~i~0 2) main_~len~0)} is VALID [2020-07-18 06:35:46,778 INFO L263 TraceCheckUtils]: 26: Hoare triple {4332#(<= (+ main_~i~0 2) main_~len~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {4328#true} is VALID [2020-07-18 06:35:46,778 INFO L280 TraceCheckUtils]: 27: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-18 06:35:46,779 INFO L280 TraceCheckUtils]: 28: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-18 06:35:46,779 INFO L280 TraceCheckUtils]: 29: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-18 06:35:46,783 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {4328#true} {4332#(<= (+ main_~i~0 2) main_~len~0)} #125#return; {4332#(<= (+ main_~i~0 2) main_~len~0)} is VALID [2020-07-18 06:35:46,783 INFO L280 TraceCheckUtils]: 31: Hoare triple {4332#(<= (+ main_~i~0 2) main_~len~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {4332#(<= (+ main_~i~0 2) main_~len~0)} is VALID [2020-07-18 06:35:46,784 INFO L280 TraceCheckUtils]: 32: Hoare triple {4332#(<= (+ main_~i~0 2) main_~len~0)} assume !(0 != #t~nondet2); {4332#(<= (+ main_~i~0 2) main_~len~0)} is VALID [2020-07-18 06:35:46,784 INFO L280 TraceCheckUtils]: 33: Hoare triple {4332#(<= (+ main_~i~0 2) main_~len~0)} havoc #t~nondet2; {4332#(<= (+ main_~i~0 2) main_~len~0)} is VALID [2020-07-18 06:35:46,785 INFO L263 TraceCheckUtils]: 34: Hoare triple {4332#(<= (+ main_~i~0 2) main_~len~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {4328#true} is VALID [2020-07-18 06:35:46,785 INFO L280 TraceCheckUtils]: 35: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-18 06:35:46,785 INFO L280 TraceCheckUtils]: 36: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-18 06:35:46,785 INFO L280 TraceCheckUtils]: 37: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-18 06:35:46,786 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {4328#true} {4332#(<= (+ main_~i~0 2) main_~len~0)} #127#return; {4332#(<= (+ main_~i~0 2) main_~len~0)} is VALID [2020-07-18 06:35:46,786 INFO L263 TraceCheckUtils]: 39: Hoare triple {4332#(<= (+ main_~i~0 2) main_~len~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {4328#true} is VALID [2020-07-18 06:35:46,787 INFO L280 TraceCheckUtils]: 40: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-18 06:35:46,787 INFO L280 TraceCheckUtils]: 41: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-18 06:35:46,787 INFO L280 TraceCheckUtils]: 42: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-18 06:35:46,790 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {4328#true} {4332#(<= (+ main_~i~0 2) main_~len~0)} #129#return; {4332#(<= (+ main_~i~0 2) main_~len~0)} is VALID [2020-07-18 06:35:46,790 INFO L263 TraceCheckUtils]: 44: Hoare triple {4332#(<= (+ main_~i~0 2) main_~len~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {4328#true} is VALID [2020-07-18 06:35:46,790 INFO L280 TraceCheckUtils]: 45: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-18 06:35:46,791 INFO L280 TraceCheckUtils]: 46: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-18 06:35:46,791 INFO L280 TraceCheckUtils]: 47: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-18 06:35:46,792 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {4328#true} {4332#(<= (+ main_~i~0 2) main_~len~0)} #131#return; {4332#(<= (+ main_~i~0 2) main_~len~0)} is VALID [2020-07-18 06:35:46,792 INFO L263 TraceCheckUtils]: 49: Hoare triple {4332#(<= (+ main_~i~0 2) main_~len~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {4328#true} is VALID [2020-07-18 06:35:46,792 INFO L280 TraceCheckUtils]: 50: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-18 06:35:46,792 INFO L280 TraceCheckUtils]: 51: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-18 06:35:46,792 INFO L280 TraceCheckUtils]: 52: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-18 06:35:46,793 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {4328#true} {4332#(<= (+ main_~i~0 2) main_~len~0)} #133#return; {4332#(<= (+ main_~i~0 2) main_~len~0)} is VALID [2020-07-18 06:35:46,794 INFO L280 TraceCheckUtils]: 54: Hoare triple {4332#(<= (+ main_~i~0 2) main_~len~0)} #t~post3 := ~j~0; {4332#(<= (+ main_~i~0 2) main_~len~0)} is VALID [2020-07-18 06:35:46,794 INFO L280 TraceCheckUtils]: 55: Hoare triple {4332#(<= (+ main_~i~0 2) main_~len~0)} ~j~0 := 1 + #t~post3; {4332#(<= (+ main_~i~0 2) main_~len~0)} is VALID [2020-07-18 06:35:46,795 INFO L280 TraceCheckUtils]: 56: Hoare triple {4332#(<= (+ main_~i~0 2) main_~len~0)} havoc #t~post3; {4332#(<= (+ main_~i~0 2) main_~len~0)} is VALID [2020-07-18 06:35:46,795 INFO L280 TraceCheckUtils]: 57: Hoare triple {4332#(<= (+ main_~i~0 2) main_~len~0)} #t~post4 := ~i~0; {4357#(<= (+ |main_#t~post4| 2) main_~len~0)} is VALID [2020-07-18 06:35:46,796 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 [2020-07-18 06:35:46,797 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 [2020-07-18 06:35:46,798 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 [2020-07-18 06:35:46,798 INFO L280 TraceCheckUtils]: 61: Hoare triple {4359#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {4360#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-18 06:35:46,799 INFO L280 TraceCheckUtils]: 62: Hoare triple {4360#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {4329#false} is VALID [2020-07-18 06:35:46,799 INFO L280 TraceCheckUtils]: 63: Hoare triple {4329#false} assume !false; {4329#false} is VALID [2020-07-18 06:35:46,805 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-07-18 06:35:46,806 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [821090359] [2020-07-18 06:35:46,806 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 06:35:46,806 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-18 06:35:46,807 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975129689] [2020-07-18 06:35:46,809 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-07-18 06:35:46,809 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 06:35:46,809 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-18 06:35:46,855 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 49 edges. 49 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:35:46,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-18 06:35:46,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 06:35:46,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-18 06:35:46,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-18 06:35:46,857 INFO L87 Difference]: Start difference. First operand 128 states and 165 transitions. Second operand 7 states. [2020-07-18 06:35:47,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:35:47,642 INFO L93 Difference]: Finished difference Result 136 states and 172 transitions. [2020-07-18 06:35:47,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-18 06:35:47,643 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-07-18 06:35:47,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 06:35:47,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-18 06:35:47,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 101 transitions. [2020-07-18 06:35:47,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-18 06:35:47,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 101 transitions. [2020-07-18 06:35:47,648 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 101 transitions. [2020-07-18 06:35:47,767 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 101 edges. 101 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:35:47,771 INFO L225 Difference]: With dead ends: 136 [2020-07-18 06:35:47,771 INFO L226 Difference]: Without dead ends: 134 [2020-07-18 06:35:47,772 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-07-18 06:35:47,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-07-18 06:35:48,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 132. [2020-07-18 06:35:48,013 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 06:35:48,013 INFO L82 GeneralOperation]: Start isEquivalent. First operand 134 states. Second operand 132 states. [2020-07-18 06:35:48,013 INFO L74 IsIncluded]: Start isIncluded. First operand 134 states. Second operand 132 states. [2020-07-18 06:35:48,013 INFO L87 Difference]: Start difference. First operand 134 states. Second operand 132 states. [2020-07-18 06:35:48,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:35:48,019 INFO L93 Difference]: Finished difference Result 134 states and 170 transitions. [2020-07-18 06:35:48,019 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 170 transitions. [2020-07-18 06:35:48,020 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:35:48,020 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:35:48,020 INFO L74 IsIncluded]: Start isIncluded. First operand 132 states. Second operand 134 states. [2020-07-18 06:35:48,021 INFO L87 Difference]: Start difference. First operand 132 states. Second operand 134 states. [2020-07-18 06:35:48,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:35:48,027 INFO L93 Difference]: Finished difference Result 134 states and 170 transitions. [2020-07-18 06:35:48,027 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 170 transitions. [2020-07-18 06:35:48,028 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:35:48,028 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:35:48,028 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 06:35:48,028 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 06:35:48,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-07-18 06:35:48,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 168 transitions. [2020-07-18 06:35:48,034 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 168 transitions. Word has length 64 [2020-07-18 06:35:48,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 06:35:48,035 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 168 transitions. [2020-07-18 06:35:48,035 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-18 06:35:48,035 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 132 states and 168 transitions. [2020-07-18 06:35:48,243 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 168 edges. 168 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:35:48,243 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 168 transitions. [2020-07-18 06:35:48,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-07-18 06:35:48,244 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 06:35:48,244 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] [2020-07-18 06:35:48,245 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-18 06:35:48,245 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 06:35:48,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 06:35:48,245 INFO L82 PathProgramCache]: Analyzing trace with hash -1715909932, now seen corresponding path program 1 times [2020-07-18 06:35:48,245 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 06:35:48,246 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1521924060] [2020-07-18 06:35:48,246 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 06:35:48,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:48,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:48,329 INFO L280 TraceCheckUtils]: 0: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-18 06:35:48,329 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {5173#true} {5173#true} #119#return; {5173#true} is VALID [2020-07-18 06:35:48,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:48,334 INFO L280 TraceCheckUtils]: 0: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-18 06:35:48,334 INFO L280 TraceCheckUtils]: 1: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-18 06:35:48,334 INFO L280 TraceCheckUtils]: 2: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-18 06:35:48,335 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #123#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:48,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:48,341 INFO L280 TraceCheckUtils]: 0: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-18 06:35:48,341 INFO L280 TraceCheckUtils]: 1: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-18 06:35:48,341 INFO L280 TraceCheckUtils]: 2: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-18 06:35:48,342 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #125#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:48,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:48,347 INFO L280 TraceCheckUtils]: 0: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-18 06:35:48,347 INFO L280 TraceCheckUtils]: 1: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-18 06:35:48,348 INFO L280 TraceCheckUtils]: 2: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-18 06:35:48,349 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #127#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:48,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:48,353 INFO L280 TraceCheckUtils]: 0: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-18 06:35:48,353 INFO L280 TraceCheckUtils]: 1: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-18 06:35:48,354 INFO L280 TraceCheckUtils]: 2: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-18 06:35:48,355 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #129#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:48,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:48,359 INFO L280 TraceCheckUtils]: 0: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-18 06:35:48,360 INFO L280 TraceCheckUtils]: 1: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-18 06:35:48,360 INFO L280 TraceCheckUtils]: 2: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-18 06:35:48,361 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #131#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:48,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:48,365 INFO L280 TraceCheckUtils]: 0: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-18 06:35:48,366 INFO L280 TraceCheckUtils]: 1: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-18 06:35:48,366 INFO L280 TraceCheckUtils]: 2: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-18 06:35:48,367 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #133#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:48,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:48,373 INFO L280 TraceCheckUtils]: 0: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-18 06:35:48,373 INFO L280 TraceCheckUtils]: 1: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-18 06:35:48,373 INFO L280 TraceCheckUtils]: 2: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-18 06:35:48,374 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {5173#true} {5203#(<= 1 main_~i~0)} #135#return; {5203#(<= 1 main_~i~0)} is VALID [2020-07-18 06:35:48,374 INFO L263 TraceCheckUtils]: 0: Hoare triple {5173#true} call ULTIMATE.init(); {5173#true} is VALID [2020-07-18 06:35:48,375 INFO L280 TraceCheckUtils]: 1: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-18 06:35:48,375 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {5173#true} {5173#true} #119#return; {5173#true} is VALID [2020-07-18 06:35:48,375 INFO L263 TraceCheckUtils]: 3: Hoare triple {5173#true} call #t~ret10 := main(); {5173#true} is VALID [2020-07-18 06:35:48,375 INFO L280 TraceCheckUtils]: 4: Hoare triple {5173#true} havoc ~len~0; {5173#true} is VALID [2020-07-18 06:35:48,376 INFO L280 TraceCheckUtils]: 5: Hoare triple {5173#true} havoc ~i~0; {5173#true} is VALID [2020-07-18 06:35:48,376 INFO L280 TraceCheckUtils]: 6: Hoare triple {5173#true} havoc ~j~0; {5173#true} is VALID [2020-07-18 06:35:48,376 INFO L280 TraceCheckUtils]: 7: Hoare triple {5173#true} havoc ~bufsize~0; {5173#true} is VALID [2020-07-18 06:35:48,376 INFO L280 TraceCheckUtils]: 8: Hoare triple {5173#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {5173#true} is VALID [2020-07-18 06:35:48,377 INFO L280 TraceCheckUtils]: 9: Hoare triple {5173#true} ~bufsize~0 := #t~nondet0; {5173#true} is VALID [2020-07-18 06:35:48,377 INFO L280 TraceCheckUtils]: 10: Hoare triple {5173#true} havoc #t~nondet0; {5173#true} is VALID [2020-07-18 06:35:48,377 INFO L280 TraceCheckUtils]: 11: Hoare triple {5173#true} assume !(~bufsize~0 < 0); {5173#true} is VALID [2020-07-18 06:35:48,377 INFO L280 TraceCheckUtils]: 12: Hoare triple {5173#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {5173#true} is VALID [2020-07-18 06:35:48,378 INFO L280 TraceCheckUtils]: 13: Hoare triple {5173#true} ~len~0 := #t~nondet1; {5173#true} is VALID [2020-07-18 06:35:48,378 INFO L280 TraceCheckUtils]: 14: Hoare triple {5173#true} havoc #t~nondet1; {5173#true} is VALID [2020-07-18 06:35:48,378 INFO L280 TraceCheckUtils]: 15: Hoare triple {5173#true} ~limit~0 := ~bufsize~0 - 4; {5173#true} is VALID [2020-07-18 06:35:48,379 INFO L280 TraceCheckUtils]: 16: Hoare triple {5173#true} ~i~0 := 0; {5177#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:48,379 INFO L280 TraceCheckUtils]: 17: Hoare triple {5177#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0); {5177#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:48,380 INFO L280 TraceCheckUtils]: 18: Hoare triple {5177#(<= 0 main_~i~0)} ~j~0 := 0; {5177#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:48,380 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 [2020-07-18 06:35:48,381 INFO L280 TraceCheckUtils]: 20: Hoare triple {5177#(<= 0 main_~i~0)} assume 1 + ~i~0 < ~len~0; {5177#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:48,381 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 [2020-07-18 06:35:48,382 INFO L280 TraceCheckUtils]: 22: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-18 06:35:48,382 INFO L280 TraceCheckUtils]: 23: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-18 06:35:48,382 INFO L280 TraceCheckUtils]: 24: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-18 06:35:48,383 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #123#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:48,383 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 [2020-07-18 06:35:48,383 INFO L280 TraceCheckUtils]: 27: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-18 06:35:48,384 INFO L280 TraceCheckUtils]: 28: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-18 06:35:48,384 INFO L280 TraceCheckUtils]: 29: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-18 06:35:48,385 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #125#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:48,385 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 [2020-07-18 06:35:48,386 INFO L280 TraceCheckUtils]: 32: Hoare triple {5177#(<= 0 main_~i~0)} assume !(0 != #t~nondet2); {5177#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:48,387 INFO L280 TraceCheckUtils]: 33: Hoare triple {5177#(<= 0 main_~i~0)} havoc #t~nondet2; {5177#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:48,387 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 [2020-07-18 06:35:48,387 INFO L280 TraceCheckUtils]: 35: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-18 06:35:48,387 INFO L280 TraceCheckUtils]: 36: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-18 06:35:48,388 INFO L280 TraceCheckUtils]: 37: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-18 06:35:48,389 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #127#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:48,389 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 [2020-07-18 06:35:48,389 INFO L280 TraceCheckUtils]: 40: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-18 06:35:48,389 INFO L280 TraceCheckUtils]: 41: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-18 06:35:48,390 INFO L280 TraceCheckUtils]: 42: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-18 06:35:48,390 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #129#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:48,390 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 [2020-07-18 06:35:48,391 INFO L280 TraceCheckUtils]: 45: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-18 06:35:48,391 INFO L280 TraceCheckUtils]: 46: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-18 06:35:48,391 INFO L280 TraceCheckUtils]: 47: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-18 06:35:48,392 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #131#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:48,392 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 [2020-07-18 06:35:48,392 INFO L280 TraceCheckUtils]: 50: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-18 06:35:48,392 INFO L280 TraceCheckUtils]: 51: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-18 06:35:48,392 INFO L280 TraceCheckUtils]: 52: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-18 06:35:48,393 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #133#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:48,394 INFO L280 TraceCheckUtils]: 54: Hoare triple {5177#(<= 0 main_~i~0)} #t~post3 := ~j~0; {5177#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:48,397 INFO L280 TraceCheckUtils]: 55: Hoare triple {5177#(<= 0 main_~i~0)} ~j~0 := 1 + #t~post3; {5177#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:48,398 INFO L280 TraceCheckUtils]: 56: Hoare triple {5177#(<= 0 main_~i~0)} havoc #t~post3; {5177#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:48,399 INFO L280 TraceCheckUtils]: 57: Hoare triple {5177#(<= 0 main_~i~0)} #t~post4 := ~i~0; {5202#(<= 0 |main_#t~post4|)} is VALID [2020-07-18 06:35:48,399 INFO L280 TraceCheckUtils]: 58: Hoare triple {5202#(<= 0 |main_#t~post4|)} ~i~0 := 1 + #t~post4; {5203#(<= 1 main_~i~0)} is VALID [2020-07-18 06:35:48,400 INFO L280 TraceCheckUtils]: 59: Hoare triple {5203#(<= 1 main_~i~0)} havoc #t~post4; {5203#(<= 1 main_~i~0)} is VALID [2020-07-18 06:35:48,400 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 [2020-07-18 06:35:48,400 INFO L280 TraceCheckUtils]: 61: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-18 06:35:48,401 INFO L280 TraceCheckUtils]: 62: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-18 06:35:48,401 INFO L280 TraceCheckUtils]: 63: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-18 06:35:48,402 INFO L275 TraceCheckUtils]: 64: Hoare quadruple {5173#true} {5203#(<= 1 main_~i~0)} #135#return; {5203#(<= 1 main_~i~0)} is VALID [2020-07-18 06:35:48,403 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 [2020-07-18 06:35:48,403 INFO L280 TraceCheckUtils]: 66: Hoare triple {5208#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {5209#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-18 06:35:48,404 INFO L280 TraceCheckUtils]: 67: Hoare triple {5209#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {5174#false} is VALID [2020-07-18 06:35:48,404 INFO L280 TraceCheckUtils]: 68: Hoare triple {5174#false} assume !false; {5174#false} is VALID [2020-07-18 06:35:48,422 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-07-18 06:35:48,423 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1521924060] [2020-07-18 06:35:48,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 06:35:48,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-18 06:35:48,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638733457] [2020-07-18 06:35:48,424 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2020-07-18 06:35:48,424 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 06:35:48,425 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-18 06:35:48,472 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 51 edges. 51 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:35:48,472 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-18 06:35:48,473 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 06:35:48,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-18 06:35:48,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-18 06:35:48,473 INFO L87 Difference]: Start difference. First operand 132 states and 168 transitions. Second operand 7 states. [2020-07-18 06:35:49,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:35:49,360 INFO L93 Difference]: Finished difference Result 162 states and 205 transitions. [2020-07-18 06:35:49,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-18 06:35:49,360 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2020-07-18 06:35:49,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 06:35:49,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-18 06:35:49,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 145 transitions. [2020-07-18 06:35:49,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-18 06:35:49,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 145 transitions. [2020-07-18 06:35:49,367 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 145 transitions. [2020-07-18 06:35:49,543 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 145 edges. 145 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:35:49,547 INFO L225 Difference]: With dead ends: 162 [2020-07-18 06:35:49,548 INFO L226 Difference]: Without dead ends: 160 [2020-07-18 06:35:49,548 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 [2020-07-18 06:35:49,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-07-18 06:35:49,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 146. [2020-07-18 06:35:49,815 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 06:35:49,815 INFO L82 GeneralOperation]: Start isEquivalent. First operand 160 states. Second operand 146 states. [2020-07-18 06:35:49,815 INFO L74 IsIncluded]: Start isIncluded. First operand 160 states. Second operand 146 states. [2020-07-18 06:35:49,815 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 146 states. [2020-07-18 06:35:49,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:35:49,823 INFO L93 Difference]: Finished difference Result 160 states and 203 transitions. [2020-07-18 06:35:49,824 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 203 transitions. [2020-07-18 06:35:49,825 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:35:49,825 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:35:49,825 INFO L74 IsIncluded]: Start isIncluded. First operand 146 states. Second operand 160 states. [2020-07-18 06:35:49,825 INFO L87 Difference]: Start difference. First operand 146 states. Second operand 160 states. [2020-07-18 06:35:49,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:35:49,833 INFO L93 Difference]: Finished difference Result 160 states and 203 transitions. [2020-07-18 06:35:49,833 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 203 transitions. [2020-07-18 06:35:49,834 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:35:49,834 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:35:49,834 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 06:35:49,835 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 06:35:49,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-07-18 06:35:49,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 185 transitions. [2020-07-18 06:35:49,841 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 185 transitions. Word has length 69 [2020-07-18 06:35:49,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 06:35:49,842 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 185 transitions. [2020-07-18 06:35:49,842 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-18 06:35:49,842 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 146 states and 185 transitions. [2020-07-18 06:35:50,104 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 185 edges. 185 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:35:50,104 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 185 transitions. [2020-07-18 06:35:50,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-07-18 06:35:50,105 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 06:35:50,105 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] [2020-07-18 06:35:50,106 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-18 06:35:50,106 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 06:35:50,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 06:35:50,106 INFO L82 PathProgramCache]: Analyzing trace with hash -1298936315, now seen corresponding path program 1 times [2020-07-18 06:35:50,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 06:35:50,107 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1532779901] [2020-07-18 06:35:50,107 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 06:35:50,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:50,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:50,182 INFO L280 TraceCheckUtils]: 0: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-18 06:35:50,182 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {6154#true} {6154#true} #119#return; {6154#true} is VALID [2020-07-18 06:35:50,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:50,187 INFO L280 TraceCheckUtils]: 0: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-18 06:35:50,187 INFO L280 TraceCheckUtils]: 1: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-18 06:35:50,187 INFO L280 TraceCheckUtils]: 2: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-18 06:35:50,188 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #123#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:50,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:50,191 INFO L280 TraceCheckUtils]: 0: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-18 06:35:50,192 INFO L280 TraceCheckUtils]: 1: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-18 06:35:50,192 INFO L280 TraceCheckUtils]: 2: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-18 06:35:50,193 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #125#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:50,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:50,196 INFO L280 TraceCheckUtils]: 0: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-18 06:35:50,197 INFO L280 TraceCheckUtils]: 1: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-18 06:35:50,197 INFO L280 TraceCheckUtils]: 2: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-18 06:35:50,198 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #147#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:50,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:50,202 INFO L280 TraceCheckUtils]: 0: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-18 06:35:50,202 INFO L280 TraceCheckUtils]: 1: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-18 06:35:50,202 INFO L280 TraceCheckUtils]: 2: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-18 06:35:50,203 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #149#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:50,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:50,207 INFO L280 TraceCheckUtils]: 0: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-18 06:35:50,207 INFO L280 TraceCheckUtils]: 1: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-18 06:35:50,208 INFO L280 TraceCheckUtils]: 2: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-18 06:35:50,208 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #151#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:50,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:50,212 INFO L280 TraceCheckUtils]: 0: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-18 06:35:50,213 INFO L280 TraceCheckUtils]: 1: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-18 06:35:50,213 INFO L280 TraceCheckUtils]: 2: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-18 06:35:50,214 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #153#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:50,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:50,218 INFO L280 TraceCheckUtils]: 0: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-18 06:35:50,218 INFO L280 TraceCheckUtils]: 1: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-18 06:35:50,218 INFO L280 TraceCheckUtils]: 2: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-18 06:35:50,219 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {6154#true} {6184#(<= 1 main_~i~0)} #123#return; {6184#(<= 1 main_~i~0)} is VALID [2020-07-18 06:35:50,219 INFO L263 TraceCheckUtils]: 0: Hoare triple {6154#true} call ULTIMATE.init(); {6154#true} is VALID [2020-07-18 06:35:50,219 INFO L280 TraceCheckUtils]: 1: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-18 06:35:50,220 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {6154#true} {6154#true} #119#return; {6154#true} is VALID [2020-07-18 06:35:50,220 INFO L263 TraceCheckUtils]: 3: Hoare triple {6154#true} call #t~ret10 := main(); {6154#true} is VALID [2020-07-18 06:35:50,220 INFO L280 TraceCheckUtils]: 4: Hoare triple {6154#true} havoc ~len~0; {6154#true} is VALID [2020-07-18 06:35:50,220 INFO L280 TraceCheckUtils]: 5: Hoare triple {6154#true} havoc ~i~0; {6154#true} is VALID [2020-07-18 06:35:50,220 INFO L280 TraceCheckUtils]: 6: Hoare triple {6154#true} havoc ~j~0; {6154#true} is VALID [2020-07-18 06:35:50,221 INFO L280 TraceCheckUtils]: 7: Hoare triple {6154#true} havoc ~bufsize~0; {6154#true} is VALID [2020-07-18 06:35:50,221 INFO L280 TraceCheckUtils]: 8: Hoare triple {6154#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {6154#true} is VALID [2020-07-18 06:35:50,221 INFO L280 TraceCheckUtils]: 9: Hoare triple {6154#true} ~bufsize~0 := #t~nondet0; {6154#true} is VALID [2020-07-18 06:35:50,221 INFO L280 TraceCheckUtils]: 10: Hoare triple {6154#true} havoc #t~nondet0; {6154#true} is VALID [2020-07-18 06:35:50,221 INFO L280 TraceCheckUtils]: 11: Hoare triple {6154#true} assume !(~bufsize~0 < 0); {6154#true} is VALID [2020-07-18 06:35:50,222 INFO L280 TraceCheckUtils]: 12: Hoare triple {6154#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {6154#true} is VALID [2020-07-18 06:35:50,222 INFO L280 TraceCheckUtils]: 13: Hoare triple {6154#true} ~len~0 := #t~nondet1; {6154#true} is VALID [2020-07-18 06:35:50,222 INFO L280 TraceCheckUtils]: 14: Hoare triple {6154#true} havoc #t~nondet1; {6154#true} is VALID [2020-07-18 06:35:50,222 INFO L280 TraceCheckUtils]: 15: Hoare triple {6154#true} ~limit~0 := ~bufsize~0 - 4; {6154#true} is VALID [2020-07-18 06:35:50,223 INFO L280 TraceCheckUtils]: 16: Hoare triple {6154#true} ~i~0 := 0; {6158#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:50,223 INFO L280 TraceCheckUtils]: 17: Hoare triple {6158#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0); {6158#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:50,224 INFO L280 TraceCheckUtils]: 18: Hoare triple {6158#(<= 0 main_~i~0)} ~j~0 := 0; {6158#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:50,224 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 [2020-07-18 06:35:50,225 INFO L280 TraceCheckUtils]: 20: Hoare triple {6158#(<= 0 main_~i~0)} assume 1 + ~i~0 < ~len~0; {6158#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:50,225 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 [2020-07-18 06:35:50,225 INFO L280 TraceCheckUtils]: 22: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-18 06:35:50,226 INFO L280 TraceCheckUtils]: 23: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-18 06:35:50,226 INFO L280 TraceCheckUtils]: 24: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-18 06:35:50,227 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #123#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:50,227 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 [2020-07-18 06:35:50,227 INFO L280 TraceCheckUtils]: 27: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-18 06:35:50,227 INFO L280 TraceCheckUtils]: 28: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-18 06:35:50,227 INFO L280 TraceCheckUtils]: 29: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-18 06:35:50,228 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #125#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:50,229 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 [2020-07-18 06:35:50,229 INFO L280 TraceCheckUtils]: 32: Hoare triple {6158#(<= 0 main_~i~0)} assume 0 != #t~nondet2; {6158#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:50,230 INFO L280 TraceCheckUtils]: 33: Hoare triple {6158#(<= 0 main_~i~0)} havoc #t~nondet2; {6158#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:50,230 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 [2020-07-18 06:35:50,230 INFO L280 TraceCheckUtils]: 35: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-18 06:35:50,230 INFO L280 TraceCheckUtils]: 36: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-18 06:35:50,230 INFO L280 TraceCheckUtils]: 37: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-18 06:35:50,231 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #147#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:50,231 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 [2020-07-18 06:35:50,231 INFO L280 TraceCheckUtils]: 40: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-18 06:35:50,232 INFO L280 TraceCheckUtils]: 41: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-18 06:35:50,232 INFO L280 TraceCheckUtils]: 42: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-18 06:35:50,232 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #149#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:50,233 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 [2020-07-18 06:35:50,233 INFO L280 TraceCheckUtils]: 45: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-18 06:35:50,233 INFO L280 TraceCheckUtils]: 46: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-18 06:35:50,233 INFO L280 TraceCheckUtils]: 47: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-18 06:35:50,234 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #151#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:50,234 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 [2020-07-18 06:35:50,234 INFO L280 TraceCheckUtils]: 50: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-18 06:35:50,235 INFO L280 TraceCheckUtils]: 51: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-18 06:35:50,235 INFO L280 TraceCheckUtils]: 52: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-18 06:35:50,235 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #153#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:50,236 INFO L280 TraceCheckUtils]: 54: Hoare triple {6158#(<= 0 main_~i~0)} #t~post8 := ~j~0; {6158#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:50,236 INFO L280 TraceCheckUtils]: 55: Hoare triple {6158#(<= 0 main_~i~0)} ~j~0 := 1 + #t~post8; {6158#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:50,237 INFO L280 TraceCheckUtils]: 56: Hoare triple {6158#(<= 0 main_~i~0)} havoc #t~post8; {6158#(<= 0 main_~i~0)} is VALID [2020-07-18 06:35:50,238 INFO L280 TraceCheckUtils]: 57: Hoare triple {6158#(<= 0 main_~i~0)} #t~post9 := ~i~0; {6183#(<= 0 |main_#t~post9|)} is VALID [2020-07-18 06:35:50,238 INFO L280 TraceCheckUtils]: 58: Hoare triple {6183#(<= 0 |main_#t~post9|)} ~i~0 := 1 + #t~post9; {6184#(<= 1 main_~i~0)} is VALID [2020-07-18 06:35:50,239 INFO L280 TraceCheckUtils]: 59: Hoare triple {6184#(<= 1 main_~i~0)} havoc #t~post9; {6184#(<= 1 main_~i~0)} is VALID [2020-07-18 06:35:50,240 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 [2020-07-18 06:35:50,240 INFO L280 TraceCheckUtils]: 61: Hoare triple {6184#(<= 1 main_~i~0)} assume 1 + ~i~0 < ~len~0; {6184#(<= 1 main_~i~0)} is VALID [2020-07-18 06:35:50,240 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 [2020-07-18 06:35:50,241 INFO L280 TraceCheckUtils]: 63: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-18 06:35:50,241 INFO L280 TraceCheckUtils]: 64: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-18 06:35:50,241 INFO L280 TraceCheckUtils]: 65: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-18 06:35:50,242 INFO L275 TraceCheckUtils]: 66: Hoare quadruple {6154#true} {6184#(<= 1 main_~i~0)} #123#return; {6184#(<= 1 main_~i~0)} is VALID [2020-07-18 06:35:50,242 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 [2020-07-18 06:35:50,243 INFO L280 TraceCheckUtils]: 68: Hoare triple {6189#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {6190#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-18 06:35:50,244 INFO L280 TraceCheckUtils]: 69: Hoare triple {6190#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {6155#false} is VALID [2020-07-18 06:35:50,244 INFO L280 TraceCheckUtils]: 70: Hoare triple {6155#false} assume !false; {6155#false} is VALID [2020-07-18 06:35:50,247 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-07-18 06:35:50,247 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1532779901] [2020-07-18 06:35:50,248 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 06:35:50,248 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-18 06:35:50,248 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466294227] [2020-07-18 06:35:50,248 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 71 [2020-07-18 06:35:50,249 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 06:35:50,249 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-18 06:35:50,302 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 53 edges. 53 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:35:50,302 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-18 06:35:50,303 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 06:35:50,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-18 06:35:50,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-18 06:35:50,303 INFO L87 Difference]: Start difference. First operand 146 states and 185 transitions. Second operand 7 states. [2020-07-18 06:35:51,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:35:51,529 INFO L93 Difference]: Finished difference Result 210 states and 280 transitions. [2020-07-18 06:35:51,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-18 06:35:51,529 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 71 [2020-07-18 06:35:51,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 06:35:51,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-18 06:35:51,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 173 transitions. [2020-07-18 06:35:51,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-18 06:35:51,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 173 transitions. [2020-07-18 06:35:51,538 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 173 transitions. [2020-07-18 06:35:51,735 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 173 edges. 173 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:35:51,748 INFO L225 Difference]: With dead ends: 210 [2020-07-18 06:35:51,748 INFO L226 Difference]: Without dead ends: 206 [2020-07-18 06:35:51,749 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 [2020-07-18 06:35:51,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-07-18 06:35:52,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 188. [2020-07-18 06:35:52,170 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 06:35:52,170 INFO L82 GeneralOperation]: Start isEquivalent. First operand 206 states. Second operand 188 states. [2020-07-18 06:35:52,170 INFO L74 IsIncluded]: Start isIncluded. First operand 206 states. Second operand 188 states. [2020-07-18 06:35:52,170 INFO L87 Difference]: Start difference. First operand 206 states. Second operand 188 states. [2020-07-18 06:35:52,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:35:52,190 INFO L93 Difference]: Finished difference Result 206 states and 274 transitions. [2020-07-18 06:35:52,190 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 274 transitions. [2020-07-18 06:35:52,191 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:35:52,191 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:35:52,192 INFO L74 IsIncluded]: Start isIncluded. First operand 188 states. Second operand 206 states. [2020-07-18 06:35:52,192 INFO L87 Difference]: Start difference. First operand 188 states. Second operand 206 states. [2020-07-18 06:35:52,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:35:52,201 INFO L93 Difference]: Finished difference Result 206 states and 274 transitions. [2020-07-18 06:35:52,201 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 274 transitions. [2020-07-18 06:35:52,202 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:35:52,202 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:35:52,202 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 06:35:52,203 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 06:35:52,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-07-18 06:35:52,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 249 transitions. [2020-07-18 06:35:52,210 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 249 transitions. Word has length 71 [2020-07-18 06:35:52,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 06:35:52,211 INFO L479 AbstractCegarLoop]: Abstraction has 188 states and 249 transitions. [2020-07-18 06:35:52,211 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-18 06:35:52,211 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 188 states and 249 transitions. [2020-07-18 06:35:52,575 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 249 edges. 249 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:35:52,575 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 249 transitions. [2020-07-18 06:35:52,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-07-18 06:35:52,577 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 06:35:52,577 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] [2020-07-18 06:35:52,578 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-18 06:35:52,578 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 06:35:52,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 06:35:52,578 INFO L82 PathProgramCache]: Analyzing trace with hash 1528474552, now seen corresponding path program 1 times [2020-07-18 06:35:52,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 06:35:52,579 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [101610361] [2020-07-18 06:35:52,579 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 06:35:52,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:52,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:52,675 INFO L280 TraceCheckUtils]: 0: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-18 06:35:52,675 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {7407#true} {7407#true} #119#return; {7407#true} is VALID [2020-07-18 06:35:52,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:52,697 INFO L280 TraceCheckUtils]: 0: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-18 06:35:52,697 INFO L280 TraceCheckUtils]: 1: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-18 06:35:52,697 INFO L280 TraceCheckUtils]: 2: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-18 06:35:52,698 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 [2020-07-18 06:35:52,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:52,702 INFO L280 TraceCheckUtils]: 0: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-18 06:35:52,702 INFO L280 TraceCheckUtils]: 1: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-18 06:35:52,702 INFO L280 TraceCheckUtils]: 2: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-18 06:35:52,703 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 [2020-07-18 06:35:52,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:52,706 INFO L280 TraceCheckUtils]: 0: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-18 06:35:52,707 INFO L280 TraceCheckUtils]: 1: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-18 06:35:52,707 INFO L280 TraceCheckUtils]: 2: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-18 06:35:52,708 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 [2020-07-18 06:35:52,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:52,712 INFO L280 TraceCheckUtils]: 0: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-18 06:35:52,712 INFO L280 TraceCheckUtils]: 1: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-18 06:35:52,712 INFO L280 TraceCheckUtils]: 2: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-18 06:35:52,713 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 [2020-07-18 06:35:52,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:52,732 INFO L280 TraceCheckUtils]: 0: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-18 06:35:52,732 INFO L280 TraceCheckUtils]: 1: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-18 06:35:52,732 INFO L280 TraceCheckUtils]: 2: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-18 06:35:52,733 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 [2020-07-18 06:35:52,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:52,739 INFO L280 TraceCheckUtils]: 0: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-18 06:35:52,739 INFO L280 TraceCheckUtils]: 1: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-18 06:35:52,740 INFO L280 TraceCheckUtils]: 2: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-18 06:35:52,740 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 [2020-07-18 06:35:52,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:52,745 INFO L280 TraceCheckUtils]: 0: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-18 06:35:52,746 INFO L280 TraceCheckUtils]: 1: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-18 06:35:52,746 INFO L280 TraceCheckUtils]: 2: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-18 06:35:52,746 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 [2020-07-18 06:35:52,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:52,750 INFO L280 TraceCheckUtils]: 0: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-18 06:35:52,750 INFO L280 TraceCheckUtils]: 1: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-18 06:35:52,750 INFO L280 TraceCheckUtils]: 2: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-18 06:35:52,751 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 [2020-07-18 06:35:52,751 INFO L263 TraceCheckUtils]: 0: Hoare triple {7407#true} call ULTIMATE.init(); {7407#true} is VALID [2020-07-18 06:35:52,752 INFO L280 TraceCheckUtils]: 1: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-18 06:35:52,752 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {7407#true} {7407#true} #119#return; {7407#true} is VALID [2020-07-18 06:35:52,752 INFO L263 TraceCheckUtils]: 3: Hoare triple {7407#true} call #t~ret10 := main(); {7407#true} is VALID [2020-07-18 06:35:52,752 INFO L280 TraceCheckUtils]: 4: Hoare triple {7407#true} havoc ~len~0; {7407#true} is VALID [2020-07-18 06:35:52,752 INFO L280 TraceCheckUtils]: 5: Hoare triple {7407#true} havoc ~i~0; {7407#true} is VALID [2020-07-18 06:35:52,753 INFO L280 TraceCheckUtils]: 6: Hoare triple {7407#true} havoc ~j~0; {7407#true} is VALID [2020-07-18 06:35:52,753 INFO L280 TraceCheckUtils]: 7: Hoare triple {7407#true} havoc ~bufsize~0; {7407#true} is VALID [2020-07-18 06:35:52,753 INFO L280 TraceCheckUtils]: 8: Hoare triple {7407#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {7407#true} is VALID [2020-07-18 06:35:52,753 INFO L280 TraceCheckUtils]: 9: Hoare triple {7407#true} ~bufsize~0 := #t~nondet0; {7407#true} is VALID [2020-07-18 06:35:52,753 INFO L280 TraceCheckUtils]: 10: Hoare triple {7407#true} havoc #t~nondet0; {7407#true} is VALID [2020-07-18 06:35:52,753 INFO L280 TraceCheckUtils]: 11: Hoare triple {7407#true} assume !(~bufsize~0 < 0); {7407#true} is VALID [2020-07-18 06:35:52,754 INFO L280 TraceCheckUtils]: 12: Hoare triple {7407#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {7407#true} is VALID [2020-07-18 06:35:52,754 INFO L280 TraceCheckUtils]: 13: Hoare triple {7407#true} ~len~0 := #t~nondet1; {7407#true} is VALID [2020-07-18 06:35:52,754 INFO L280 TraceCheckUtils]: 14: Hoare triple {7407#true} havoc #t~nondet1; {7407#true} is VALID [2020-07-18 06:35:52,755 INFO L280 TraceCheckUtils]: 15: Hoare triple {7407#true} ~limit~0 := ~bufsize~0 - 4; {7411#(<= (+ main_~limit~0 4) main_~bufsize~0)} is VALID [2020-07-18 06:35:52,755 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 [2020-07-18 06:35:52,756 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 [2020-07-18 06:35:52,756 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 [2020-07-18 06:35:52,757 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 [2020-07-18 06:35:52,757 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 [2020-07-18 06:35:52,758 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 [2020-07-18 06:35:52,758 INFO L280 TraceCheckUtils]: 22: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-18 06:35:52,758 INFO L280 TraceCheckUtils]: 23: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-18 06:35:52,758 INFO L280 TraceCheckUtils]: 24: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-18 06:35:52,762 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 [2020-07-18 06:35:52,762 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 [2020-07-18 06:35:52,762 INFO L280 TraceCheckUtils]: 27: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-18 06:35:52,762 INFO L280 TraceCheckUtils]: 28: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-18 06:35:52,762 INFO L280 TraceCheckUtils]: 29: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-18 06:35:52,763 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 [2020-07-18 06:35:52,764 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 [2020-07-18 06:35:52,764 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 [2020-07-18 06:35:52,764 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 [2020-07-18 06:35:52,765 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 [2020-07-18 06:35:52,765 INFO L280 TraceCheckUtils]: 35: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-18 06:35:52,765 INFO L280 TraceCheckUtils]: 36: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-18 06:35:52,765 INFO L280 TraceCheckUtils]: 37: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-18 06:35:52,766 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 [2020-07-18 06:35:52,766 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 [2020-07-18 06:35:52,766 INFO L280 TraceCheckUtils]: 40: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-18 06:35:52,766 INFO L280 TraceCheckUtils]: 41: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-18 06:35:52,767 INFO L280 TraceCheckUtils]: 42: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-18 06:35:52,767 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 [2020-07-18 06:35:52,767 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 [2020-07-18 06:35:52,768 INFO L280 TraceCheckUtils]: 45: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-18 06:35:52,768 INFO L280 TraceCheckUtils]: 46: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-18 06:35:52,768 INFO L280 TraceCheckUtils]: 47: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-18 06:35:52,769 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 [2020-07-18 06:35:52,769 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 [2020-07-18 06:35:52,769 INFO L280 TraceCheckUtils]: 50: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-18 06:35:52,769 INFO L280 TraceCheckUtils]: 51: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-18 06:35:52,769 INFO L280 TraceCheckUtils]: 52: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-18 06:35:52,770 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 [2020-07-18 06:35:52,770 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 [2020-07-18 06:35:52,771 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 [2020-07-18 06:35:52,772 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 [2020-07-18 06:35:52,772 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 [2020-07-18 06:35:52,773 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 [2020-07-18 06:35:52,773 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 [2020-07-18 06:35:52,773 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 [2020-07-18 06:35:52,773 INFO L280 TraceCheckUtils]: 61: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-18 06:35:52,774 INFO L280 TraceCheckUtils]: 62: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-18 06:35:52,774 INFO L280 TraceCheckUtils]: 63: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-18 06:35:52,774 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 [2020-07-18 06:35:52,775 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 [2020-07-18 06:35:52,775 INFO L280 TraceCheckUtils]: 66: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-18 06:35:52,775 INFO L280 TraceCheckUtils]: 67: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-18 06:35:52,775 INFO L280 TraceCheckUtils]: 68: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-18 06:35:52,776 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 [2020-07-18 06:35:52,777 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 [2020-07-18 06:35:52,777 INFO L280 TraceCheckUtils]: 71: Hoare triple {7447#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {7448#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-18 06:35:52,778 INFO L280 TraceCheckUtils]: 72: Hoare triple {7448#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {7408#false} is VALID [2020-07-18 06:35:52,778 INFO L280 TraceCheckUtils]: 73: Hoare triple {7408#false} assume !false; {7408#false} is VALID [2020-07-18 06:35:52,781 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-07-18 06:35:52,782 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [101610361] [2020-07-18 06:35:52,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 06:35:52,782 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-18 06:35:52,782 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722539867] [2020-07-18 06:35:52,783 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 74 [2020-07-18 06:35:52,783 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 06:35:52,783 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2020-07-18 06:35:52,832 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 53 edges. 53 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:35:52,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-18 06:35:52,832 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 06:35:52,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-18 06:35:52,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-18 06:35:52,833 INFO L87 Difference]: Start difference. First operand 188 states and 249 transitions. Second operand 8 states. [2020-07-18 06:35:53,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:35:53,978 INFO L93 Difference]: Finished difference Result 194 states and 254 transitions. [2020-07-18 06:35:53,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-18 06:35:53,978 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 74 [2020-07-18 06:35:53,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 06:35:53,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-18 06:35:53,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 91 transitions. [2020-07-18 06:35:53,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-18 06:35:53,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 91 transitions. [2020-07-18 06:35:53,982 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states and 91 transitions. [2020-07-18 06:35:54,107 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 91 edges. 91 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:35:54,113 INFO L225 Difference]: With dead ends: 194 [2020-07-18 06:35:54,113 INFO L226 Difference]: Without dead ends: 192 [2020-07-18 06:35:54,114 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 [2020-07-18 06:35:54,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-07-18 06:35:54,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2020-07-18 06:35:54,514 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 06:35:54,514 INFO L82 GeneralOperation]: Start isEquivalent. First operand 192 states. Second operand 192 states. [2020-07-18 06:35:54,514 INFO L74 IsIncluded]: Start isIncluded. First operand 192 states. Second operand 192 states. [2020-07-18 06:35:54,515 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 192 states. [2020-07-18 06:35:54,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:35:54,522 INFO L93 Difference]: Finished difference Result 192 states and 252 transitions. [2020-07-18 06:35:54,522 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 252 transitions. [2020-07-18 06:35:54,524 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:35:54,524 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:35:54,524 INFO L74 IsIncluded]: Start isIncluded. First operand 192 states. Second operand 192 states. [2020-07-18 06:35:54,524 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 192 states. [2020-07-18 06:35:54,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:35:54,531 INFO L93 Difference]: Finished difference Result 192 states and 252 transitions. [2020-07-18 06:35:54,531 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 252 transitions. [2020-07-18 06:35:54,532 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:35:54,532 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:35:54,532 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 06:35:54,532 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 06:35:54,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-07-18 06:35:54,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 252 transitions. [2020-07-18 06:35:54,539 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 252 transitions. Word has length 74 [2020-07-18 06:35:54,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 06:35:54,539 INFO L479 AbstractCegarLoop]: Abstraction has 192 states and 252 transitions. [2020-07-18 06:35:54,539 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-18 06:35:54,539 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 192 states and 252 transitions. [2020-07-18 06:35:54,885 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 252 edges. 252 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:35:54,885 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 252 transitions. [2020-07-18 06:35:54,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-07-18 06:35:54,887 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 06:35:54,887 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] [2020-07-18 06:35:54,887 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-18 06:35:54,887 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 06:35:54,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 06:35:54,888 INFO L82 PathProgramCache]: Analyzing trace with hash -1530703596, now seen corresponding path program 1 times [2020-07-18 06:35:54,888 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 06:35:54,888 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1607063621] [2020-07-18 06:35:54,888 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 06:35:54,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:55,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:55,012 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-18 06:35:55,012 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {8617#true} {8617#true} #119#return; {8617#true} is VALID [2020-07-18 06:35:55,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:55,018 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-18 06:35:55,019 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-18 06:35:55,019 INFO L280 TraceCheckUtils]: 2: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-18 06:35:55,020 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #123#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-18 06:35:55,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:55,023 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-18 06:35:55,023 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-18 06:35:55,024 INFO L280 TraceCheckUtils]: 2: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-18 06:35:55,024 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #125#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-18 06:35:55,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:55,033 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-18 06:35:55,033 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-18 06:35:55,033 INFO L280 TraceCheckUtils]: 2: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-18 06:35:55,037 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #127#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-18 06:35:55,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:55,042 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-18 06:35:55,042 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-18 06:35:55,042 INFO L280 TraceCheckUtils]: 2: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-18 06:35:55,043 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #129#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-18 06:35:55,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:55,057 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-18 06:35:55,057 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-18 06:35:55,058 INFO L280 TraceCheckUtils]: 2: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-18 06:35:55,058 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #131#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-18 06:35:55,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:55,063 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-18 06:35:55,063 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-18 06:35:55,063 INFO L280 TraceCheckUtils]: 2: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-18 06:35:55,064 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #133#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-18 06:35:55,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:55,068 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-18 06:35:55,068 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-18 06:35:55,068 INFO L280 TraceCheckUtils]: 2: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-18 06:35:55,069 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {8617#true} {8647#(<= 1 main_~j~0)} #135#return; {8647#(<= 1 main_~j~0)} is VALID [2020-07-18 06:35:55,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:55,074 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-18 06:35:55,074 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-18 06:35:55,074 INFO L280 TraceCheckUtils]: 2: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-18 06:35:55,075 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {8617#true} {8647#(<= 1 main_~j~0)} #137#return; {8647#(<= 1 main_~j~0)} is VALID [2020-07-18 06:35:55,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:55,089 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-18 06:35:55,089 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-18 06:35:55,089 INFO L280 TraceCheckUtils]: 2: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-18 06:35:55,090 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {8617#true} {8647#(<= 1 main_~j~0)} #139#return; {8647#(<= 1 main_~j~0)} is VALID [2020-07-18 06:35:55,091 INFO L263 TraceCheckUtils]: 0: Hoare triple {8617#true} call ULTIMATE.init(); {8617#true} is VALID [2020-07-18 06:35:55,091 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-18 06:35:55,091 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {8617#true} {8617#true} #119#return; {8617#true} is VALID [2020-07-18 06:35:55,091 INFO L263 TraceCheckUtils]: 3: Hoare triple {8617#true} call #t~ret10 := main(); {8617#true} is VALID [2020-07-18 06:35:55,091 INFO L280 TraceCheckUtils]: 4: Hoare triple {8617#true} havoc ~len~0; {8617#true} is VALID [2020-07-18 06:35:55,091 INFO L280 TraceCheckUtils]: 5: Hoare triple {8617#true} havoc ~i~0; {8617#true} is VALID [2020-07-18 06:35:55,092 INFO L280 TraceCheckUtils]: 6: Hoare triple {8617#true} havoc ~j~0; {8617#true} is VALID [2020-07-18 06:35:55,092 INFO L280 TraceCheckUtils]: 7: Hoare triple {8617#true} havoc ~bufsize~0; {8617#true} is VALID [2020-07-18 06:35:55,092 INFO L280 TraceCheckUtils]: 8: Hoare triple {8617#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {8617#true} is VALID [2020-07-18 06:35:55,092 INFO L280 TraceCheckUtils]: 9: Hoare triple {8617#true} ~bufsize~0 := #t~nondet0; {8617#true} is VALID [2020-07-18 06:35:55,092 INFO L280 TraceCheckUtils]: 10: Hoare triple {8617#true} havoc #t~nondet0; {8617#true} is VALID [2020-07-18 06:35:55,093 INFO L280 TraceCheckUtils]: 11: Hoare triple {8617#true} assume !(~bufsize~0 < 0); {8617#true} is VALID [2020-07-18 06:35:55,093 INFO L280 TraceCheckUtils]: 12: Hoare triple {8617#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {8617#true} is VALID [2020-07-18 06:35:55,093 INFO L280 TraceCheckUtils]: 13: Hoare triple {8617#true} ~len~0 := #t~nondet1; {8617#true} is VALID [2020-07-18 06:35:55,093 INFO L280 TraceCheckUtils]: 14: Hoare triple {8617#true} havoc #t~nondet1; {8617#true} is VALID [2020-07-18 06:35:55,093 INFO L280 TraceCheckUtils]: 15: Hoare triple {8617#true} ~limit~0 := ~bufsize~0 - 4; {8617#true} is VALID [2020-07-18 06:35:55,093 INFO L280 TraceCheckUtils]: 16: Hoare triple {8617#true} ~i~0 := 0; {8617#true} is VALID [2020-07-18 06:35:55,094 INFO L280 TraceCheckUtils]: 17: Hoare triple {8617#true} assume !!(~i~0 < ~len~0); {8617#true} is VALID [2020-07-18 06:35:55,094 INFO L280 TraceCheckUtils]: 18: Hoare triple {8617#true} ~j~0 := 0; {8621#(<= 0 main_~j~0)} is VALID [2020-07-18 06:35:55,095 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 [2020-07-18 06:35:55,095 INFO L280 TraceCheckUtils]: 20: Hoare triple {8621#(<= 0 main_~j~0)} assume 1 + ~i~0 < ~len~0; {8621#(<= 0 main_~j~0)} is VALID [2020-07-18 06:35:55,095 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 [2020-07-18 06:35:55,096 INFO L280 TraceCheckUtils]: 22: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-18 06:35:55,096 INFO L280 TraceCheckUtils]: 23: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-18 06:35:55,096 INFO L280 TraceCheckUtils]: 24: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-18 06:35:55,097 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #123#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-18 06:35:55,097 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 [2020-07-18 06:35:55,097 INFO L280 TraceCheckUtils]: 27: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-18 06:35:55,097 INFO L280 TraceCheckUtils]: 28: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-18 06:35:55,097 INFO L280 TraceCheckUtils]: 29: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-18 06:35:55,098 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #125#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-18 06:35:55,098 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 [2020-07-18 06:35:55,099 INFO L280 TraceCheckUtils]: 32: Hoare triple {8621#(<= 0 main_~j~0)} assume !(0 != #t~nondet2); {8621#(<= 0 main_~j~0)} is VALID [2020-07-18 06:35:55,099 INFO L280 TraceCheckUtils]: 33: Hoare triple {8621#(<= 0 main_~j~0)} havoc #t~nondet2; {8621#(<= 0 main_~j~0)} is VALID [2020-07-18 06:35:55,099 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 [2020-07-18 06:35:55,100 INFO L280 TraceCheckUtils]: 35: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-18 06:35:55,100 INFO L280 TraceCheckUtils]: 36: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-18 06:35:55,100 INFO L280 TraceCheckUtils]: 37: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-18 06:35:55,101 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #127#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-18 06:35:55,101 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 [2020-07-18 06:35:55,101 INFO L280 TraceCheckUtils]: 40: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-18 06:35:55,101 INFO L280 TraceCheckUtils]: 41: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-18 06:35:55,102 INFO L280 TraceCheckUtils]: 42: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-18 06:35:55,102 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #129#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-18 06:35:55,102 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 [2020-07-18 06:35:55,103 INFO L280 TraceCheckUtils]: 45: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-18 06:35:55,103 INFO L280 TraceCheckUtils]: 46: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-18 06:35:55,103 INFO L280 TraceCheckUtils]: 47: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-18 06:35:55,103 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #131#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-18 06:35:55,104 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 [2020-07-18 06:35:55,104 INFO L280 TraceCheckUtils]: 50: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-18 06:35:55,104 INFO L280 TraceCheckUtils]: 51: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-18 06:35:55,104 INFO L280 TraceCheckUtils]: 52: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-18 06:35:55,105 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #133#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-18 06:35:55,106 INFO L280 TraceCheckUtils]: 54: Hoare triple {8621#(<= 0 main_~j~0)} #t~post3 := ~j~0; {8646#(<= 0 |main_#t~post3|)} is VALID [2020-07-18 06:35:55,107 INFO L280 TraceCheckUtils]: 55: Hoare triple {8646#(<= 0 |main_#t~post3|)} ~j~0 := 1 + #t~post3; {8647#(<= 1 main_~j~0)} is VALID [2020-07-18 06:35:55,107 INFO L280 TraceCheckUtils]: 56: Hoare triple {8647#(<= 1 main_~j~0)} havoc #t~post3; {8647#(<= 1 main_~j~0)} is VALID [2020-07-18 06:35:55,108 INFO L280 TraceCheckUtils]: 57: Hoare triple {8647#(<= 1 main_~j~0)} #t~post4 := ~i~0; {8647#(<= 1 main_~j~0)} is VALID [2020-07-18 06:35:55,108 INFO L280 TraceCheckUtils]: 58: Hoare triple {8647#(<= 1 main_~j~0)} ~i~0 := 1 + #t~post4; {8647#(<= 1 main_~j~0)} is VALID [2020-07-18 06:35:55,109 INFO L280 TraceCheckUtils]: 59: Hoare triple {8647#(<= 1 main_~j~0)} havoc #t~post4; {8647#(<= 1 main_~j~0)} is VALID [2020-07-18 06:35:55,109 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 [2020-07-18 06:35:55,109 INFO L280 TraceCheckUtils]: 61: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-18 06:35:55,109 INFO L280 TraceCheckUtils]: 62: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-18 06:35:55,110 INFO L280 TraceCheckUtils]: 63: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-18 06:35:55,110 INFO L275 TraceCheckUtils]: 64: Hoare quadruple {8617#true} {8647#(<= 1 main_~j~0)} #135#return; {8647#(<= 1 main_~j~0)} is VALID [2020-07-18 06:35:55,110 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 [2020-07-18 06:35:55,111 INFO L280 TraceCheckUtils]: 66: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-18 06:35:55,111 INFO L280 TraceCheckUtils]: 67: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-18 06:35:55,111 INFO L280 TraceCheckUtils]: 68: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-18 06:35:55,112 INFO L275 TraceCheckUtils]: 69: Hoare quadruple {8617#true} {8647#(<= 1 main_~j~0)} #137#return; {8647#(<= 1 main_~j~0)} is VALID [2020-07-18 06:35:55,112 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 [2020-07-18 06:35:55,112 INFO L280 TraceCheckUtils]: 71: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-18 06:35:55,112 INFO L280 TraceCheckUtils]: 72: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-18 06:35:55,112 INFO L280 TraceCheckUtils]: 73: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-18 06:35:55,113 INFO L275 TraceCheckUtils]: 74: Hoare quadruple {8617#true} {8647#(<= 1 main_~j~0)} #139#return; {8647#(<= 1 main_~j~0)} is VALID [2020-07-18 06:35:55,114 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 [2020-07-18 06:35:55,114 INFO L280 TraceCheckUtils]: 76: Hoare triple {8660#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {8661#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-18 06:35:55,115 INFO L280 TraceCheckUtils]: 77: Hoare triple {8661#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {8618#false} is VALID [2020-07-18 06:35:55,115 INFO L280 TraceCheckUtils]: 78: Hoare triple {8618#false} assume !false; {8618#false} is VALID [2020-07-18 06:35:55,120 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-07-18 06:35:55,121 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1607063621] [2020-07-18 06:35:55,121 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 06:35:55,121 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-18 06:35:55,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793648325] [2020-07-18 06:35:55,123 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 79 [2020-07-18 06:35:55,123 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 06:35:55,123 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-18 06:35:55,179 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 55 edges. 55 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:35:55,179 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-18 06:35:55,179 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 06:35:55,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-18 06:35:55,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-18 06:35:55,180 INFO L87 Difference]: Start difference. First operand 192 states and 252 transitions. Second operand 7 states. [2020-07-18 06:35:56,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:35:56,204 INFO L93 Difference]: Finished difference Result 220 states and 283 transitions. [2020-07-18 06:35:56,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-18 06:35:56,204 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 79 [2020-07-18 06:35:56,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 06:35:56,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-18 06:35:56,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 140 transitions. [2020-07-18 06:35:56,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-18 06:35:56,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 140 transitions. [2020-07-18 06:35:56,210 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 140 transitions. [2020-07-18 06:35:56,369 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 140 edges. 140 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:35:56,379 INFO L225 Difference]: With dead ends: 220 [2020-07-18 06:35:56,379 INFO L226 Difference]: Without dead ends: 218 [2020-07-18 06:35:56,380 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 [2020-07-18 06:35:56,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-07-18 06:35:56,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 206. [2020-07-18 06:35:56,843 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 06:35:56,843 INFO L82 GeneralOperation]: Start isEquivalent. First operand 218 states. Second operand 206 states. [2020-07-18 06:35:56,843 INFO L74 IsIncluded]: Start isIncluded. First operand 218 states. Second operand 206 states. [2020-07-18 06:35:56,843 INFO L87 Difference]: Start difference. First operand 218 states. Second operand 206 states. [2020-07-18 06:35:56,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:35:56,851 INFO L93 Difference]: Finished difference Result 218 states and 281 transitions. [2020-07-18 06:35:56,851 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 281 transitions. [2020-07-18 06:35:56,853 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:35:56,853 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:35:56,853 INFO L74 IsIncluded]: Start isIncluded. First operand 206 states. Second operand 218 states. [2020-07-18 06:35:56,853 INFO L87 Difference]: Start difference. First operand 206 states. Second operand 218 states. [2020-07-18 06:35:56,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:35:56,861 INFO L93 Difference]: Finished difference Result 218 states and 281 transitions. [2020-07-18 06:35:56,862 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 281 transitions. [2020-07-18 06:35:56,863 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:35:56,863 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:35:56,863 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 06:35:56,863 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 06:35:56,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-07-18 06:35:56,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 269 transitions. [2020-07-18 06:35:56,878 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 269 transitions. Word has length 79 [2020-07-18 06:35:56,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 06:35:56,878 INFO L479 AbstractCegarLoop]: Abstraction has 206 states and 269 transitions. [2020-07-18 06:35:56,879 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-18 06:35:56,879 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 206 states and 269 transitions. [2020-07-18 06:35:57,324 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 269 edges. 269 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:35:57,324 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 269 transitions. [2020-07-18 06:35:57,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-07-18 06:35:57,326 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 06:35:57,327 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] [2020-07-18 06:35:57,327 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-18 06:35:57,327 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 06:35:57,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 06:35:57,328 INFO L82 PathProgramCache]: Analyzing trace with hash 1064000984, now seen corresponding path program 1 times [2020-07-18 06:35:57,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 06:35:57,328 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1108200452] [2020-07-18 06:35:57,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 06:35:57,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:57,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:57,398 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-18 06:35:57,398 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {9958#true} {9958#true} #119#return; {9958#true} is VALID [2020-07-18 06:35:57,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:57,402 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-18 06:35:57,402 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-18 06:35:57,402 INFO L280 TraceCheckUtils]: 2: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-18 06:35:57,403 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #123#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-18 06:35:57,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:57,407 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-18 06:35:57,407 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-18 06:35:57,407 INFO L280 TraceCheckUtils]: 2: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-18 06:35:57,408 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #125#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-18 06:35:57,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:57,414 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-18 06:35:57,415 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-18 06:35:57,415 INFO L280 TraceCheckUtils]: 2: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-18 06:35:57,416 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #147#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-18 06:35:57,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:57,419 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-18 06:35:57,420 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-18 06:35:57,420 INFO L280 TraceCheckUtils]: 2: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-18 06:35:57,420 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #149#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-18 06:35:57,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:57,424 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-18 06:35:57,424 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-18 06:35:57,424 INFO L280 TraceCheckUtils]: 2: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-18 06:35:57,425 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #151#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-18 06:35:57,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:57,428 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-18 06:35:57,428 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-18 06:35:57,428 INFO L280 TraceCheckUtils]: 2: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-18 06:35:57,429 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #153#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-18 06:35:57,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:57,432 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-18 06:35:57,433 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-18 06:35:57,433 INFO L280 TraceCheckUtils]: 2: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-18 06:35:57,433 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9958#true} {9988#(<= 1 main_~j~0)} #147#return; {9988#(<= 1 main_~j~0)} is VALID [2020-07-18 06:35:57,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:57,437 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-18 06:35:57,437 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-18 06:35:57,437 INFO L280 TraceCheckUtils]: 2: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-18 06:35:57,438 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9958#true} {9988#(<= 1 main_~j~0)} #149#return; {9988#(<= 1 main_~j~0)} is VALID [2020-07-18 06:35:57,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:35:57,442 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-18 06:35:57,442 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-18 06:35:57,442 INFO L280 TraceCheckUtils]: 2: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-18 06:35:57,443 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9958#true} {9988#(<= 1 main_~j~0)} #151#return; {9988#(<= 1 main_~j~0)} is VALID [2020-07-18 06:35:57,443 INFO L263 TraceCheckUtils]: 0: Hoare triple {9958#true} call ULTIMATE.init(); {9958#true} is VALID [2020-07-18 06:35:57,443 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-18 06:35:57,443 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {9958#true} {9958#true} #119#return; {9958#true} is VALID [2020-07-18 06:35:57,444 INFO L263 TraceCheckUtils]: 3: Hoare triple {9958#true} call #t~ret10 := main(); {9958#true} is VALID [2020-07-18 06:35:57,444 INFO L280 TraceCheckUtils]: 4: Hoare triple {9958#true} havoc ~len~0; {9958#true} is VALID [2020-07-18 06:35:57,444 INFO L280 TraceCheckUtils]: 5: Hoare triple {9958#true} havoc ~i~0; {9958#true} is VALID [2020-07-18 06:35:57,444 INFO L280 TraceCheckUtils]: 6: Hoare triple {9958#true} havoc ~j~0; {9958#true} is VALID [2020-07-18 06:35:57,444 INFO L280 TraceCheckUtils]: 7: Hoare triple {9958#true} havoc ~bufsize~0; {9958#true} is VALID [2020-07-18 06:35:57,444 INFO L280 TraceCheckUtils]: 8: Hoare triple {9958#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {9958#true} is VALID [2020-07-18 06:35:57,445 INFO L280 TraceCheckUtils]: 9: Hoare triple {9958#true} ~bufsize~0 := #t~nondet0; {9958#true} is VALID [2020-07-18 06:35:57,445 INFO L280 TraceCheckUtils]: 10: Hoare triple {9958#true} havoc #t~nondet0; {9958#true} is VALID [2020-07-18 06:35:57,445 INFO L280 TraceCheckUtils]: 11: Hoare triple {9958#true} assume !(~bufsize~0 < 0); {9958#true} is VALID [2020-07-18 06:35:57,445 INFO L280 TraceCheckUtils]: 12: Hoare triple {9958#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {9958#true} is VALID [2020-07-18 06:35:57,445 INFO L280 TraceCheckUtils]: 13: Hoare triple {9958#true} ~len~0 := #t~nondet1; {9958#true} is VALID [2020-07-18 06:35:57,445 INFO L280 TraceCheckUtils]: 14: Hoare triple {9958#true} havoc #t~nondet1; {9958#true} is VALID [2020-07-18 06:35:57,446 INFO L280 TraceCheckUtils]: 15: Hoare triple {9958#true} ~limit~0 := ~bufsize~0 - 4; {9958#true} is VALID [2020-07-18 06:35:57,446 INFO L280 TraceCheckUtils]: 16: Hoare triple {9958#true} ~i~0 := 0; {9958#true} is VALID [2020-07-18 06:35:57,446 INFO L280 TraceCheckUtils]: 17: Hoare triple {9958#true} assume !!(~i~0 < ~len~0); {9958#true} is VALID [2020-07-18 06:35:57,447 INFO L280 TraceCheckUtils]: 18: Hoare triple {9958#true} ~j~0 := 0; {9962#(<= 0 main_~j~0)} is VALID [2020-07-18 06:35:57,447 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 [2020-07-18 06:35:57,448 INFO L280 TraceCheckUtils]: 20: Hoare triple {9962#(<= 0 main_~j~0)} assume 1 + ~i~0 < ~len~0; {9962#(<= 0 main_~j~0)} is VALID [2020-07-18 06:35:57,448 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 [2020-07-18 06:35:57,448 INFO L280 TraceCheckUtils]: 22: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-18 06:35:57,448 INFO L280 TraceCheckUtils]: 23: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-18 06:35:57,448 INFO L280 TraceCheckUtils]: 24: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-18 06:35:57,449 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #123#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-18 06:35:57,449 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 [2020-07-18 06:35:57,449 INFO L280 TraceCheckUtils]: 27: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-18 06:35:57,449 INFO L280 TraceCheckUtils]: 28: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-18 06:35:57,450 INFO L280 TraceCheckUtils]: 29: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-18 06:35:57,450 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #125#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-18 06:35:57,451 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 [2020-07-18 06:35:57,451 INFO L280 TraceCheckUtils]: 32: Hoare triple {9962#(<= 0 main_~j~0)} assume 0 != #t~nondet2; {9962#(<= 0 main_~j~0)} is VALID [2020-07-18 06:35:57,452 INFO L280 TraceCheckUtils]: 33: Hoare triple {9962#(<= 0 main_~j~0)} havoc #t~nondet2; {9962#(<= 0 main_~j~0)} is VALID [2020-07-18 06:35:57,452 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 [2020-07-18 06:35:57,452 INFO L280 TraceCheckUtils]: 35: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-18 06:35:57,452 INFO L280 TraceCheckUtils]: 36: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-18 06:35:57,453 INFO L280 TraceCheckUtils]: 37: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-18 06:35:57,453 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #147#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-18 06:35:57,453 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 [2020-07-18 06:35:57,454 INFO L280 TraceCheckUtils]: 40: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-18 06:35:57,454 INFO L280 TraceCheckUtils]: 41: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-18 06:35:57,454 INFO L280 TraceCheckUtils]: 42: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-18 06:35:57,455 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #149#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-18 06:35:57,455 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 [2020-07-18 06:35:57,455 INFO L280 TraceCheckUtils]: 45: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-18 06:35:57,455 INFO L280 TraceCheckUtils]: 46: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-18 06:35:57,455 INFO L280 TraceCheckUtils]: 47: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-18 06:35:57,456 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #151#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-18 06:35:57,456 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 [2020-07-18 06:35:57,456 INFO L280 TraceCheckUtils]: 50: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-18 06:35:57,457 INFO L280 TraceCheckUtils]: 51: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-18 06:35:57,457 INFO L280 TraceCheckUtils]: 52: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-18 06:35:57,457 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #153#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-18 06:35:57,458 INFO L280 TraceCheckUtils]: 54: Hoare triple {9962#(<= 0 main_~j~0)} #t~post8 := ~j~0; {9987#(<= 0 |main_#t~post8|)} is VALID [2020-07-18 06:35:57,459 INFO L280 TraceCheckUtils]: 55: Hoare triple {9987#(<= 0 |main_#t~post8|)} ~j~0 := 1 + #t~post8; {9988#(<= 1 main_~j~0)} is VALID [2020-07-18 06:35:57,459 INFO L280 TraceCheckUtils]: 56: Hoare triple {9988#(<= 1 main_~j~0)} havoc #t~post8; {9988#(<= 1 main_~j~0)} is VALID [2020-07-18 06:35:57,460 INFO L280 TraceCheckUtils]: 57: Hoare triple {9988#(<= 1 main_~j~0)} #t~post9 := ~i~0; {9988#(<= 1 main_~j~0)} is VALID [2020-07-18 06:35:57,460 INFO L280 TraceCheckUtils]: 58: Hoare triple {9988#(<= 1 main_~j~0)} ~i~0 := 1 + #t~post9; {9988#(<= 1 main_~j~0)} is VALID [2020-07-18 06:35:57,461 INFO L280 TraceCheckUtils]: 59: Hoare triple {9988#(<= 1 main_~j~0)} havoc #t~post9; {9988#(<= 1 main_~j~0)} is VALID [2020-07-18 06:35:57,461 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 [2020-07-18 06:35:57,462 INFO L280 TraceCheckUtils]: 61: Hoare triple {9988#(<= 1 main_~j~0)} assume !(1 + ~i~0 < ~len~0); {9988#(<= 1 main_~j~0)} is VALID [2020-07-18 06:35:57,462 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 [2020-07-18 06:35:57,462 INFO L280 TraceCheckUtils]: 63: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-18 06:35:57,462 INFO L280 TraceCheckUtils]: 64: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-18 06:35:57,463 INFO L280 TraceCheckUtils]: 65: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-18 06:35:57,463 INFO L275 TraceCheckUtils]: 66: Hoare quadruple {9958#true} {9988#(<= 1 main_~j~0)} #147#return; {9988#(<= 1 main_~j~0)} is VALID [2020-07-18 06:35:57,464 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 [2020-07-18 06:35:57,464 INFO L280 TraceCheckUtils]: 68: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-18 06:35:57,464 INFO L280 TraceCheckUtils]: 69: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-18 06:35:57,464 INFO L280 TraceCheckUtils]: 70: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-18 06:35:57,465 INFO L275 TraceCheckUtils]: 71: Hoare quadruple {9958#true} {9988#(<= 1 main_~j~0)} #149#return; {9988#(<= 1 main_~j~0)} is VALID [2020-07-18 06:35:57,465 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 [2020-07-18 06:35:57,465 INFO L280 TraceCheckUtils]: 73: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-18 06:35:57,465 INFO L280 TraceCheckUtils]: 74: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-18 06:35:57,465 INFO L280 TraceCheckUtils]: 75: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-18 06:35:57,466 INFO L275 TraceCheckUtils]: 76: Hoare quadruple {9958#true} {9988#(<= 1 main_~j~0)} #151#return; {9988#(<= 1 main_~j~0)} is VALID [2020-07-18 06:35:57,467 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 [2020-07-18 06:35:57,467 INFO L280 TraceCheckUtils]: 78: Hoare triple {10001#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {10002#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-18 06:35:57,468 INFO L280 TraceCheckUtils]: 79: Hoare triple {10002#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {9959#false} is VALID [2020-07-18 06:35:57,468 INFO L280 TraceCheckUtils]: 80: Hoare triple {9959#false} assume !false; {9959#false} is VALID [2020-07-18 06:35:57,472 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-07-18 06:35:57,473 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1108200452] [2020-07-18 06:35:57,473 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 06:35:57,473 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-18 06:35:57,473 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173893702] [2020-07-18 06:35:57,474 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 81 [2020-07-18 06:35:57,474 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 06:35:57,474 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-18 06:35:57,528 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 57 edges. 57 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:35:57,528 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-18 06:35:57,528 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 06:35:57,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-18 06:35:57,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-18 06:35:57,529 INFO L87 Difference]: Start difference. First operand 206 states and 269 transitions. Second operand 7 states. [2020-07-18 06:35:58,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:35:58,788 INFO L93 Difference]: Finished difference Result 252 states and 330 transitions. [2020-07-18 06:35:58,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-18 06:35:58,789 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 81 [2020-07-18 06:35:58,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 06:35:58,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-18 06:35:58,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 165 transitions. [2020-07-18 06:35:58,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-18 06:35:58,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 165 transitions. [2020-07-18 06:35:58,795 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 165 transitions. [2020-07-18 06:35:58,996 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 165 edges. 165 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:35:59,005 INFO L225 Difference]: With dead ends: 252 [2020-07-18 06:35:59,006 INFO L226 Difference]: Without dead ends: 246 [2020-07-18 06:35:59,009 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 [2020-07-18 06:35:59,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2020-07-18 06:35:59,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 230. [2020-07-18 06:35:59,530 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 06:35:59,530 INFO L82 GeneralOperation]: Start isEquivalent. First operand 246 states. Second operand 230 states. [2020-07-18 06:35:59,530 INFO L74 IsIncluded]: Start isIncluded. First operand 246 states. Second operand 230 states. [2020-07-18 06:35:59,530 INFO L87 Difference]: Start difference. First operand 246 states. Second operand 230 states. [2020-07-18 06:35:59,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:35:59,539 INFO L93 Difference]: Finished difference Result 246 states and 319 transitions. [2020-07-18 06:35:59,539 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 319 transitions. [2020-07-18 06:35:59,540 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:35:59,541 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:35:59,541 INFO L74 IsIncluded]: Start isIncluded. First operand 230 states. Second operand 246 states. [2020-07-18 06:35:59,541 INFO L87 Difference]: Start difference. First operand 230 states. Second operand 246 states. [2020-07-18 06:35:59,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:35:59,550 INFO L93 Difference]: Finished difference Result 246 states and 319 transitions. [2020-07-18 06:35:59,550 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 319 transitions. [2020-07-18 06:35:59,551 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:35:59,551 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:35:59,551 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 06:35:59,551 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 06:35:59,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-07-18 06:35:59,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 302 transitions. [2020-07-18 06:35:59,560 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 302 transitions. Word has length 81 [2020-07-18 06:35:59,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 06:35:59,560 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 302 transitions. [2020-07-18 06:35:59,560 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-18 06:35:59,560 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 230 states and 302 transitions. [2020-07-18 06:36:00,055 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 302 edges. 302 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:36:00,055 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 302 transitions. [2020-07-18 06:36:00,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-07-18 06:36:00,057 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 06:36:00,057 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] [2020-07-18 06:36:00,058 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-07-18 06:36:00,058 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 06:36:00,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 06:36:00,058 INFO L82 PathProgramCache]: Analyzing trace with hash -895183749, now seen corresponding path program 1 times [2020-07-18 06:36:00,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 06:36:00,059 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1958565715] [2020-07-18 06:36:00,059 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 06:36:00,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:00,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:00,191 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-18 06:36:00,191 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {11467#true} {11467#true} #119#return; {11467#true} is VALID [2020-07-18 06:36:00,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:00,194 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-18 06:36:00,195 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-18 06:36:00,195 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-18 06:36:00,196 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 [2020-07-18 06:36:00,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:00,201 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-18 06:36:00,201 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-18 06:36:00,201 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-18 06:36:00,207 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 [2020-07-18 06:36:00,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:00,211 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-18 06:36:00,212 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-18 06:36:00,212 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-18 06:36:00,213 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 [2020-07-18 06:36:00,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:00,219 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-18 06:36:00,219 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-18 06:36:00,220 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-18 06:36:00,220 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 [2020-07-18 06:36:00,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:00,227 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-18 06:36:00,228 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-18 06:36:00,228 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-18 06:36:00,229 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 [2020-07-18 06:36:00,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:00,232 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-18 06:36:00,233 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-18 06:36:00,233 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-18 06:36:00,233 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 [2020-07-18 06:36:00,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:00,239 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-18 06:36:00,239 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-18 06:36:00,239 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-18 06:36:00,240 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 [2020-07-18 06:36:00,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:00,243 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-18 06:36:00,244 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-18 06:36:00,244 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-18 06:36:00,244 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 [2020-07-18 06:36:00,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:00,248 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-18 06:36:00,248 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-18 06:36:00,248 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-18 06:36:00,249 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 [2020-07-18 06:36:00,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:00,258 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-18 06:36:00,259 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-18 06:36:00,259 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-18 06:36:00,260 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 [2020-07-18 06:36:00,260 INFO L263 TraceCheckUtils]: 0: Hoare triple {11467#true} call ULTIMATE.init(); {11467#true} is VALID [2020-07-18 06:36:00,260 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-18 06:36:00,260 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {11467#true} {11467#true} #119#return; {11467#true} is VALID [2020-07-18 06:36:00,260 INFO L263 TraceCheckUtils]: 3: Hoare triple {11467#true} call #t~ret10 := main(); {11467#true} is VALID [2020-07-18 06:36:00,261 INFO L280 TraceCheckUtils]: 4: Hoare triple {11467#true} havoc ~len~0; {11467#true} is VALID [2020-07-18 06:36:00,261 INFO L280 TraceCheckUtils]: 5: Hoare triple {11467#true} havoc ~i~0; {11467#true} is VALID [2020-07-18 06:36:00,261 INFO L280 TraceCheckUtils]: 6: Hoare triple {11467#true} havoc ~j~0; {11467#true} is VALID [2020-07-18 06:36:00,261 INFO L280 TraceCheckUtils]: 7: Hoare triple {11467#true} havoc ~bufsize~0; {11467#true} is VALID [2020-07-18 06:36:00,261 INFO L280 TraceCheckUtils]: 8: Hoare triple {11467#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {11467#true} is VALID [2020-07-18 06:36:00,262 INFO L280 TraceCheckUtils]: 9: Hoare triple {11467#true} ~bufsize~0 := #t~nondet0; {11467#true} is VALID [2020-07-18 06:36:00,262 INFO L280 TraceCheckUtils]: 10: Hoare triple {11467#true} havoc #t~nondet0; {11467#true} is VALID [2020-07-18 06:36:00,262 INFO L280 TraceCheckUtils]: 11: Hoare triple {11467#true} assume !(~bufsize~0 < 0); {11467#true} is VALID [2020-07-18 06:36:00,262 INFO L280 TraceCheckUtils]: 12: Hoare triple {11467#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {11467#true} is VALID [2020-07-18 06:36:00,262 INFO L280 TraceCheckUtils]: 13: Hoare triple {11467#true} ~len~0 := #t~nondet1; {11467#true} is VALID [2020-07-18 06:36:00,263 INFO L280 TraceCheckUtils]: 14: Hoare triple {11467#true} havoc #t~nondet1; {11467#true} is VALID [2020-07-18 06:36:00,263 INFO L280 TraceCheckUtils]: 15: Hoare triple {11467#true} ~limit~0 := ~bufsize~0 - 4; {11471#(<= (+ main_~limit~0 4) main_~bufsize~0)} is VALID [2020-07-18 06:36:00,264 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 [2020-07-18 06:36:00,264 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 [2020-07-18 06:36:00,265 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 [2020-07-18 06:36:00,266 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 [2020-07-18 06:36:00,267 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 [2020-07-18 06:36:00,267 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 [2020-07-18 06:36:00,267 INFO L280 TraceCheckUtils]: 22: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-18 06:36:00,267 INFO L280 TraceCheckUtils]: 23: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-18 06:36:00,268 INFO L280 TraceCheckUtils]: 24: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-18 06:36:00,268 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 [2020-07-18 06:36:00,269 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 [2020-07-18 06:36:00,269 INFO L280 TraceCheckUtils]: 27: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-18 06:36:00,269 INFO L280 TraceCheckUtils]: 28: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-18 06:36:00,269 INFO L280 TraceCheckUtils]: 29: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-18 06:36:00,270 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 [2020-07-18 06:36:00,270 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 [2020-07-18 06:36:00,271 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 [2020-07-18 06:36:00,271 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 [2020-07-18 06:36:00,272 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 [2020-07-18 06:36:00,272 INFO L280 TraceCheckUtils]: 35: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-18 06:36:00,272 INFO L280 TraceCheckUtils]: 36: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-18 06:36:00,272 INFO L280 TraceCheckUtils]: 37: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-18 06:36:00,274 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 [2020-07-18 06:36:00,274 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 [2020-07-18 06:36:00,274 INFO L280 TraceCheckUtils]: 40: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-18 06:36:00,274 INFO L280 TraceCheckUtils]: 41: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-18 06:36:00,274 INFO L280 TraceCheckUtils]: 42: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-18 06:36:00,275 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 [2020-07-18 06:36:00,275 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 [2020-07-18 06:36:00,276 INFO L280 TraceCheckUtils]: 45: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-18 06:36:00,276 INFO L280 TraceCheckUtils]: 46: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-18 06:36:00,276 INFO L280 TraceCheckUtils]: 47: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-18 06:36:00,277 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 [2020-07-18 06:36:00,277 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 [2020-07-18 06:36:00,277 INFO L280 TraceCheckUtils]: 50: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-18 06:36:00,277 INFO L280 TraceCheckUtils]: 51: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-18 06:36:00,277 INFO L280 TraceCheckUtils]: 52: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-18 06:36:00,278 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 [2020-07-18 06:36:00,279 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 [2020-07-18 06:36:00,280 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 [2020-07-18 06:36:00,280 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 [2020-07-18 06:36:00,281 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 [2020-07-18 06:36:00,281 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 [2020-07-18 06:36:00,282 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 [2020-07-18 06:36:00,282 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 [2020-07-18 06:36:00,282 INFO L280 TraceCheckUtils]: 61: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-18 06:36:00,282 INFO L280 TraceCheckUtils]: 62: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-18 06:36:00,283 INFO L280 TraceCheckUtils]: 63: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-18 06:36:00,283 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 [2020-07-18 06:36:00,284 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 [2020-07-18 06:36:00,284 INFO L280 TraceCheckUtils]: 66: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-18 06:36:00,284 INFO L280 TraceCheckUtils]: 67: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-18 06:36:00,284 INFO L280 TraceCheckUtils]: 68: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-18 06:36:00,285 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 [2020-07-18 06:36:00,285 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 [2020-07-18 06:36:00,285 INFO L280 TraceCheckUtils]: 71: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-18 06:36:00,285 INFO L280 TraceCheckUtils]: 72: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-18 06:36:00,286 INFO L280 TraceCheckUtils]: 73: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-18 06:36:00,286 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 [2020-07-18 06:36:00,286 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 [2020-07-18 06:36:00,287 INFO L280 TraceCheckUtils]: 76: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-18 06:36:00,287 INFO L280 TraceCheckUtils]: 77: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-18 06:36:00,287 INFO L280 TraceCheckUtils]: 78: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-18 06:36:00,288 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 [2020-07-18 06:36:00,288 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 [2020-07-18 06:36:00,289 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 [2020-07-18 06:36:00,290 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 [2020-07-18 06:36:00,290 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 [2020-07-18 06:36:00,291 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 [2020-07-18 06:36:00,291 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 [2020-07-18 06:36:00,292 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 [2020-07-18 06:36:00,294 INFO L280 TraceCheckUtils]: 87: Hoare triple {11517#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {11518#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-18 06:36:00,294 INFO L280 TraceCheckUtils]: 88: Hoare triple {11518#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {11468#false} is VALID [2020-07-18 06:36:00,294 INFO L280 TraceCheckUtils]: 89: Hoare triple {11468#false} assume !false; {11468#false} is VALID [2020-07-18 06:36:00,303 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-07-18 06:36:00,304 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1958565715] [2020-07-18 06:36:00,304 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 06:36:00,304 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-18 06:36:00,304 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978240181] [2020-07-18 06:36:00,305 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 90 [2020-07-18 06:36:00,305 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 06:36:00,305 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states. [2020-07-18 06:36:00,376 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 63 edges. 63 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:36:00,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-18 06:36:00,377 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 06:36:00,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-18 06:36:00,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-07-18 06:36:00,378 INFO L87 Difference]: Start difference. First operand 230 states and 302 transitions. Second operand 10 states. [2020-07-18 06:36:01,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:36:01,945 INFO L93 Difference]: Finished difference Result 236 states and 307 transitions. [2020-07-18 06:36:01,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-18 06:36:01,945 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 90 [2020-07-18 06:36:01,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 06:36:01,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-18 06:36:01,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 91 transitions. [2020-07-18 06:36:01,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-18 06:36:01,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 91 transitions. [2020-07-18 06:36:01,949 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states and 91 transitions. [2020-07-18 06:36:02,060 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 91 edges. 91 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:36:02,066 INFO L225 Difference]: With dead ends: 236 [2020-07-18 06:36:02,066 INFO L226 Difference]: Without dead ends: 234 [2020-07-18 06:36:02,067 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2020-07-18 06:36:02,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2020-07-18 06:36:02,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2020-07-18 06:36:02,535 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 06:36:02,535 INFO L82 GeneralOperation]: Start isEquivalent. First operand 234 states. Second operand 234 states. [2020-07-18 06:36:02,535 INFO L74 IsIncluded]: Start isIncluded. First operand 234 states. Second operand 234 states. [2020-07-18 06:36:02,535 INFO L87 Difference]: Start difference. First operand 234 states. Second operand 234 states. [2020-07-18 06:36:02,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:36:02,546 INFO L93 Difference]: Finished difference Result 234 states and 305 transitions. [2020-07-18 06:36:02,546 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 305 transitions. [2020-07-18 06:36:02,547 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:36:02,547 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:36:02,547 INFO L74 IsIncluded]: Start isIncluded. First operand 234 states. Second operand 234 states. [2020-07-18 06:36:02,548 INFO L87 Difference]: Start difference. First operand 234 states. Second operand 234 states. [2020-07-18 06:36:02,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:36:02,556 INFO L93 Difference]: Finished difference Result 234 states and 305 transitions. [2020-07-18 06:36:02,556 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 305 transitions. [2020-07-18 06:36:02,557 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:36:02,557 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:36:02,557 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 06:36:02,557 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 06:36:02,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-07-18 06:36:02,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 305 transitions. [2020-07-18 06:36:02,565 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 305 transitions. Word has length 90 [2020-07-18 06:36:02,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 06:36:02,566 INFO L479 AbstractCegarLoop]: Abstraction has 234 states and 305 transitions. [2020-07-18 06:36:02,566 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-18 06:36:02,566 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 234 states and 305 transitions. [2020-07-18 06:36:02,992 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 305 edges. 305 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:36:02,993 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 305 transitions. [2020-07-18 06:36:02,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-07-18 06:36:02,994 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 06:36:02,994 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] [2020-07-18 06:36:02,994 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-07-18 06:36:02,995 INFO L427 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 06:36:02,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 06:36:02,995 INFO L82 PathProgramCache]: Analyzing trace with hash -1272604239, now seen corresponding path program 1 times [2020-07-18 06:36:02,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 06:36:02,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1039167750] [2020-07-18 06:36:02,996 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 06:36:03,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:03,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:03,111 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-18 06:36:03,111 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {12945#true} {12945#true} #119#return; {12945#true} is VALID [2020-07-18 06:36:03,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:03,115 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-18 06:36:03,116 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-18 06:36:03,116 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-18 06:36:03,117 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #123#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:03,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:03,121 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-18 06:36:03,121 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-18 06:36:03,122 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-18 06:36:03,122 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #125#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:03,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:03,133 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-18 06:36:03,133 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-18 06:36:03,133 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-18 06:36:03,134 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #127#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:03,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:03,140 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-18 06:36:03,141 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-18 06:36:03,141 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-18 06:36:03,141 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #129#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:03,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:03,146 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-18 06:36:03,147 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-18 06:36:03,147 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-18 06:36:03,147 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #131#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:03,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:03,153 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-18 06:36:03,153 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-18 06:36:03,153 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-18 06:36:03,154 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #133#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:03,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:03,158 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-18 06:36:03,158 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-18 06:36:03,158 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-18 06:36:03,159 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12975#(<= 1 main_~j~0)} #135#return; {12975#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:03,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:03,164 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-18 06:36:03,164 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-18 06:36:03,164 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-18 06:36:03,165 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12975#(<= 1 main_~j~0)} #137#return; {12975#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:03,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:03,170 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-18 06:36:03,170 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-18 06:36:03,170 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-18 06:36:03,171 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12975#(<= 1 main_~j~0)} #139#return; {12975#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:03,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:03,175 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-18 06:36:03,176 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-18 06:36:03,176 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-18 06:36:03,177 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12975#(<= 1 main_~j~0)} #141#return; {12975#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:03,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:03,180 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-18 06:36:03,181 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-18 06:36:03,181 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-18 06:36:03,182 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12993#(<= 2 main_~j~0)} #143#return; {12993#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:03,182 INFO L263 TraceCheckUtils]: 0: Hoare triple {12945#true} call ULTIMATE.init(); {12945#true} is VALID [2020-07-18 06:36:03,182 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-18 06:36:03,182 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {12945#true} {12945#true} #119#return; {12945#true} is VALID [2020-07-18 06:36:03,183 INFO L263 TraceCheckUtils]: 3: Hoare triple {12945#true} call #t~ret10 := main(); {12945#true} is VALID [2020-07-18 06:36:03,183 INFO L280 TraceCheckUtils]: 4: Hoare triple {12945#true} havoc ~len~0; {12945#true} is VALID [2020-07-18 06:36:03,183 INFO L280 TraceCheckUtils]: 5: Hoare triple {12945#true} havoc ~i~0; {12945#true} is VALID [2020-07-18 06:36:03,183 INFO L280 TraceCheckUtils]: 6: Hoare triple {12945#true} havoc ~j~0; {12945#true} is VALID [2020-07-18 06:36:03,183 INFO L280 TraceCheckUtils]: 7: Hoare triple {12945#true} havoc ~bufsize~0; {12945#true} is VALID [2020-07-18 06:36:03,183 INFO L280 TraceCheckUtils]: 8: Hoare triple {12945#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {12945#true} is VALID [2020-07-18 06:36:03,184 INFO L280 TraceCheckUtils]: 9: Hoare triple {12945#true} ~bufsize~0 := #t~nondet0; {12945#true} is VALID [2020-07-18 06:36:03,184 INFO L280 TraceCheckUtils]: 10: Hoare triple {12945#true} havoc #t~nondet0; {12945#true} is VALID [2020-07-18 06:36:03,184 INFO L280 TraceCheckUtils]: 11: Hoare triple {12945#true} assume !(~bufsize~0 < 0); {12945#true} is VALID [2020-07-18 06:36:03,184 INFO L280 TraceCheckUtils]: 12: Hoare triple {12945#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {12945#true} is VALID [2020-07-18 06:36:03,184 INFO L280 TraceCheckUtils]: 13: Hoare triple {12945#true} ~len~0 := #t~nondet1; {12945#true} is VALID [2020-07-18 06:36:03,185 INFO L280 TraceCheckUtils]: 14: Hoare triple {12945#true} havoc #t~nondet1; {12945#true} is VALID [2020-07-18 06:36:03,185 INFO L280 TraceCheckUtils]: 15: Hoare triple {12945#true} ~limit~0 := ~bufsize~0 - 4; {12945#true} is VALID [2020-07-18 06:36:03,185 INFO L280 TraceCheckUtils]: 16: Hoare triple {12945#true} ~i~0 := 0; {12945#true} is VALID [2020-07-18 06:36:03,185 INFO L280 TraceCheckUtils]: 17: Hoare triple {12945#true} assume !!(~i~0 < ~len~0); {12945#true} is VALID [2020-07-18 06:36:03,186 INFO L280 TraceCheckUtils]: 18: Hoare triple {12945#true} ~j~0 := 0; {12949#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:03,186 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 [2020-07-18 06:36:03,187 INFO L280 TraceCheckUtils]: 20: Hoare triple {12949#(<= 0 main_~j~0)} assume 1 + ~i~0 < ~len~0; {12949#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:03,187 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 [2020-07-18 06:36:03,187 INFO L280 TraceCheckUtils]: 22: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-18 06:36:03,188 INFO L280 TraceCheckUtils]: 23: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-18 06:36:03,188 INFO L280 TraceCheckUtils]: 24: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-18 06:36:03,189 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #123#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:03,189 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 [2020-07-18 06:36:03,189 INFO L280 TraceCheckUtils]: 27: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-18 06:36:03,189 INFO L280 TraceCheckUtils]: 28: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-18 06:36:03,189 INFO L280 TraceCheckUtils]: 29: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-18 06:36:03,190 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #125#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:03,191 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 [2020-07-18 06:36:03,191 INFO L280 TraceCheckUtils]: 32: Hoare triple {12949#(<= 0 main_~j~0)} assume !(0 != #t~nondet2); {12949#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:03,192 INFO L280 TraceCheckUtils]: 33: Hoare triple {12949#(<= 0 main_~j~0)} havoc #t~nondet2; {12949#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:03,192 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 [2020-07-18 06:36:03,192 INFO L280 TraceCheckUtils]: 35: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-18 06:36:03,192 INFO L280 TraceCheckUtils]: 36: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-18 06:36:03,193 INFO L280 TraceCheckUtils]: 37: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-18 06:36:03,193 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #127#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:03,194 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 [2020-07-18 06:36:03,194 INFO L280 TraceCheckUtils]: 40: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-18 06:36:03,194 INFO L280 TraceCheckUtils]: 41: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-18 06:36:03,194 INFO L280 TraceCheckUtils]: 42: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-18 06:36:03,195 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #129#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:03,195 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 [2020-07-18 06:36:03,196 INFO L280 TraceCheckUtils]: 45: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-18 06:36:03,196 INFO L280 TraceCheckUtils]: 46: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-18 06:36:03,196 INFO L280 TraceCheckUtils]: 47: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-18 06:36:03,197 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #131#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:03,197 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 [2020-07-18 06:36:03,197 INFO L280 TraceCheckUtils]: 50: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-18 06:36:03,197 INFO L280 TraceCheckUtils]: 51: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-18 06:36:03,197 INFO L280 TraceCheckUtils]: 52: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-18 06:36:03,198 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #133#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:03,199 INFO L280 TraceCheckUtils]: 54: Hoare triple {12949#(<= 0 main_~j~0)} #t~post3 := ~j~0; {12974#(<= 0 |main_#t~post3|)} is VALID [2020-07-18 06:36:03,200 INFO L280 TraceCheckUtils]: 55: Hoare triple {12974#(<= 0 |main_#t~post3|)} ~j~0 := 1 + #t~post3; {12975#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:03,200 INFO L280 TraceCheckUtils]: 56: Hoare triple {12975#(<= 1 main_~j~0)} havoc #t~post3; {12975#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:03,201 INFO L280 TraceCheckUtils]: 57: Hoare triple {12975#(<= 1 main_~j~0)} #t~post4 := ~i~0; {12975#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:03,201 INFO L280 TraceCheckUtils]: 58: Hoare triple {12975#(<= 1 main_~j~0)} ~i~0 := 1 + #t~post4; {12975#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:03,202 INFO L280 TraceCheckUtils]: 59: Hoare triple {12975#(<= 1 main_~j~0)} havoc #t~post4; {12975#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:03,202 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 [2020-07-18 06:36:03,202 INFO L280 TraceCheckUtils]: 61: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-18 06:36:03,202 INFO L280 TraceCheckUtils]: 62: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-18 06:36:03,203 INFO L280 TraceCheckUtils]: 63: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-18 06:36:03,203 INFO L275 TraceCheckUtils]: 64: Hoare quadruple {12945#true} {12975#(<= 1 main_~j~0)} #135#return; {12975#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:03,204 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 [2020-07-18 06:36:03,204 INFO L280 TraceCheckUtils]: 66: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-18 06:36:03,204 INFO L280 TraceCheckUtils]: 67: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-18 06:36:03,204 INFO L280 TraceCheckUtils]: 68: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-18 06:36:03,205 INFO L275 TraceCheckUtils]: 69: Hoare quadruple {12945#true} {12975#(<= 1 main_~j~0)} #137#return; {12975#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:03,205 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 [2020-07-18 06:36:03,205 INFO L280 TraceCheckUtils]: 71: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-18 06:36:03,205 INFO L280 TraceCheckUtils]: 72: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-18 06:36:03,206 INFO L280 TraceCheckUtils]: 73: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-18 06:36:03,206 INFO L275 TraceCheckUtils]: 74: Hoare quadruple {12945#true} {12975#(<= 1 main_~j~0)} #139#return; {12975#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:03,207 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 [2020-07-18 06:36:03,207 INFO L280 TraceCheckUtils]: 76: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-18 06:36:03,207 INFO L280 TraceCheckUtils]: 77: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-18 06:36:03,207 INFO L280 TraceCheckUtils]: 78: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-18 06:36:03,208 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {12945#true} {12975#(<= 1 main_~j~0)} #141#return; {12975#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:03,209 INFO L280 TraceCheckUtils]: 80: Hoare triple {12975#(<= 1 main_~j~0)} #t~post5 := ~j~0; {12992#(<= 1 |main_#t~post5|)} is VALID [2020-07-18 06:36:03,209 INFO L280 TraceCheckUtils]: 81: Hoare triple {12992#(<= 1 |main_#t~post5|)} ~j~0 := 1 + #t~post5; {12993#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:03,210 INFO L280 TraceCheckUtils]: 82: Hoare triple {12993#(<= 2 main_~j~0)} havoc #t~post5; {12993#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:03,210 INFO L280 TraceCheckUtils]: 83: Hoare triple {12993#(<= 2 main_~j~0)} #t~post6 := ~i~0; {12993#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:03,211 INFO L280 TraceCheckUtils]: 84: Hoare triple {12993#(<= 2 main_~j~0)} ~i~0 := 1 + #t~post6; {12993#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:03,212 INFO L280 TraceCheckUtils]: 85: Hoare triple {12993#(<= 2 main_~j~0)} havoc #t~post6; {12993#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:03,212 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 [2020-07-18 06:36:03,212 INFO L280 TraceCheckUtils]: 87: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-18 06:36:03,212 INFO L280 TraceCheckUtils]: 88: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-18 06:36:03,212 INFO L280 TraceCheckUtils]: 89: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-18 06:36:03,213 INFO L275 TraceCheckUtils]: 90: Hoare quadruple {12945#true} {12993#(<= 2 main_~j~0)} #143#return; {12993#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:03,214 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 [2020-07-18 06:36:03,215 INFO L280 TraceCheckUtils]: 92: Hoare triple {12998#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {12999#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-18 06:36:03,215 INFO L280 TraceCheckUtils]: 93: Hoare triple {12999#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {12946#false} is VALID [2020-07-18 06:36:03,215 INFO L280 TraceCheckUtils]: 94: Hoare triple {12946#false} assume !false; {12946#false} is VALID [2020-07-18 06:36:03,228 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-07-18 06:36:03,229 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1039167750] [2020-07-18 06:36:03,229 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 06:36:03,229 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-18 06:36:03,229 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073978318] [2020-07-18 06:36:03,230 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-07-18 06:36:03,230 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 06:36:03,230 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2020-07-18 06:36:03,303 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 65 edges. 65 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:36:03,304 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-18 06:36:03,304 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 06:36:03,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-18 06:36:03,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-07-18 06:36:03,304 INFO L87 Difference]: Start difference. First operand 234 states and 305 transitions. Second operand 9 states. [2020-07-18 06:36:04,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:36:04,619 INFO L93 Difference]: Finished difference Result 262 states and 335 transitions. [2020-07-18 06:36:04,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-18 06:36:04,619 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-07-18 06:36:04,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 06:36:04,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-18 06:36:04,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 150 transitions. [2020-07-18 06:36:04,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-18 06:36:04,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 150 transitions. [2020-07-18 06:36:04,625 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states and 150 transitions. [2020-07-18 06:36:04,808 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 150 edges. 150 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:36:04,815 INFO L225 Difference]: With dead ends: 262 [2020-07-18 06:36:04,816 INFO L226 Difference]: Without dead ends: 260 [2020-07-18 06:36:04,816 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 [2020-07-18 06:36:04,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-07-18 06:36:05,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 246. [2020-07-18 06:36:05,345 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 06:36:05,345 INFO L82 GeneralOperation]: Start isEquivalent. First operand 260 states. Second operand 246 states. [2020-07-18 06:36:05,345 INFO L74 IsIncluded]: Start isIncluded. First operand 260 states. Second operand 246 states. [2020-07-18 06:36:05,346 INFO L87 Difference]: Start difference. First operand 260 states. Second operand 246 states. [2020-07-18 06:36:05,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:36:05,354 INFO L93 Difference]: Finished difference Result 260 states and 333 transitions. [2020-07-18 06:36:05,354 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 333 transitions. [2020-07-18 06:36:05,355 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:36:05,355 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:36:05,356 INFO L74 IsIncluded]: Start isIncluded. First operand 246 states. Second operand 260 states. [2020-07-18 06:36:05,356 INFO L87 Difference]: Start difference. First operand 246 states. Second operand 260 states. [2020-07-18 06:36:05,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:36:05,364 INFO L93 Difference]: Finished difference Result 260 states and 333 transitions. [2020-07-18 06:36:05,364 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 333 transitions. [2020-07-18 06:36:05,365 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:36:05,365 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:36:05,365 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 06:36:05,366 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 06:36:05,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2020-07-18 06:36:05,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 318 transitions. [2020-07-18 06:36:05,374 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 318 transitions. Word has length 95 [2020-07-18 06:36:05,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 06:36:05,374 INFO L479 AbstractCegarLoop]: Abstraction has 246 states and 318 transitions. [2020-07-18 06:36:05,374 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-18 06:36:05,374 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 246 states and 318 transitions. [2020-07-18 06:36:05,853 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 318 edges. 318 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:36:05,854 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 318 transitions. [2020-07-18 06:36:05,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-07-18 06:36:05,855 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 06:36:05,856 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] [2020-07-18 06:36:05,856 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-07-18 06:36:05,856 INFO L427 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 06:36:05,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 06:36:05,856 INFO L82 PathProgramCache]: Analyzing trace with hash -960498755, now seen corresponding path program 1 times [2020-07-18 06:36:05,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 06:36:05,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [921588894] [2020-07-18 06:36:05,857 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 06:36:05,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:05,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:05,959 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-18 06:36:05,959 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {14548#true} {14548#true} #119#return; {14548#true} is VALID [2020-07-18 06:36:05,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:05,962 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-18 06:36:05,963 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-18 06:36:05,963 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-18 06:36:05,963 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #123#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:05,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:05,968 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-18 06:36:05,968 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-18 06:36:05,968 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-18 06:36:05,969 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #125#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:05,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:05,972 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-18 06:36:05,972 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-18 06:36:05,972 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-18 06:36:05,973 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #147#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:05,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:05,977 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-18 06:36:05,977 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-18 06:36:05,977 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-18 06:36:05,978 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #149#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:05,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:05,984 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-18 06:36:05,985 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-18 06:36:05,985 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-18 06:36:05,986 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #151#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:05,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:05,990 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-18 06:36:05,990 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-18 06:36:05,990 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-18 06:36:05,992 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #153#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:05,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:05,995 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-18 06:36:05,995 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-18 06:36:05,996 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-18 06:36:05,997 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #123#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:05,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:06,000 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-18 06:36:06,001 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-18 06:36:06,001 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-18 06:36:06,002 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #125#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:06,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:06,005 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-18 06:36:06,006 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-18 06:36:06,006 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-18 06:36:06,006 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #127#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:06,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:06,010 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-18 06:36:06,010 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-18 06:36:06,011 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-18 06:36:06,011 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #129#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:06,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:06,015 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-18 06:36:06,015 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-18 06:36:06,015 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-18 06:36:06,016 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #131#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:06,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:06,020 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-18 06:36:06,021 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-18 06:36:06,021 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-18 06:36:06,021 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #133#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:06,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:06,025 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-18 06:36:06,026 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-18 06:36:06,026 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-18 06:36:06,029 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14604#(<= 2 main_~i~0)} #135#return; {14604#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:06,029 INFO L263 TraceCheckUtils]: 0: Hoare triple {14548#true} call ULTIMATE.init(); {14548#true} is VALID [2020-07-18 06:36:06,029 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-18 06:36:06,029 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {14548#true} {14548#true} #119#return; {14548#true} is VALID [2020-07-18 06:36:06,029 INFO L263 TraceCheckUtils]: 3: Hoare triple {14548#true} call #t~ret10 := main(); {14548#true} is VALID [2020-07-18 06:36:06,030 INFO L280 TraceCheckUtils]: 4: Hoare triple {14548#true} havoc ~len~0; {14548#true} is VALID [2020-07-18 06:36:06,030 INFO L280 TraceCheckUtils]: 5: Hoare triple {14548#true} havoc ~i~0; {14548#true} is VALID [2020-07-18 06:36:06,030 INFO L280 TraceCheckUtils]: 6: Hoare triple {14548#true} havoc ~j~0; {14548#true} is VALID [2020-07-18 06:36:06,030 INFO L280 TraceCheckUtils]: 7: Hoare triple {14548#true} havoc ~bufsize~0; {14548#true} is VALID [2020-07-18 06:36:06,030 INFO L280 TraceCheckUtils]: 8: Hoare triple {14548#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {14548#true} is VALID [2020-07-18 06:36:06,030 INFO L280 TraceCheckUtils]: 9: Hoare triple {14548#true} ~bufsize~0 := #t~nondet0; {14548#true} is VALID [2020-07-18 06:36:06,031 INFO L280 TraceCheckUtils]: 10: Hoare triple {14548#true} havoc #t~nondet0; {14548#true} is VALID [2020-07-18 06:36:06,031 INFO L280 TraceCheckUtils]: 11: Hoare triple {14548#true} assume !(~bufsize~0 < 0); {14548#true} is VALID [2020-07-18 06:36:06,031 INFO L280 TraceCheckUtils]: 12: Hoare triple {14548#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {14548#true} is VALID [2020-07-18 06:36:06,031 INFO L280 TraceCheckUtils]: 13: Hoare triple {14548#true} ~len~0 := #t~nondet1; {14548#true} is VALID [2020-07-18 06:36:06,031 INFO L280 TraceCheckUtils]: 14: Hoare triple {14548#true} havoc #t~nondet1; {14548#true} is VALID [2020-07-18 06:36:06,032 INFO L280 TraceCheckUtils]: 15: Hoare triple {14548#true} ~limit~0 := ~bufsize~0 - 4; {14548#true} is VALID [2020-07-18 06:36:06,032 INFO L280 TraceCheckUtils]: 16: Hoare triple {14548#true} ~i~0 := 0; {14552#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:06,033 INFO L280 TraceCheckUtils]: 17: Hoare triple {14552#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0); {14552#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:06,033 INFO L280 TraceCheckUtils]: 18: Hoare triple {14552#(<= 0 main_~i~0)} ~j~0 := 0; {14552#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:06,034 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 [2020-07-18 06:36:06,034 INFO L280 TraceCheckUtils]: 20: Hoare triple {14552#(<= 0 main_~i~0)} assume 1 + ~i~0 < ~len~0; {14552#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:06,034 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 [2020-07-18 06:36:06,034 INFO L280 TraceCheckUtils]: 22: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-18 06:36:06,035 INFO L280 TraceCheckUtils]: 23: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-18 06:36:06,035 INFO L280 TraceCheckUtils]: 24: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-18 06:36:06,035 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #123#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:06,036 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 [2020-07-18 06:36:06,036 INFO L280 TraceCheckUtils]: 27: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-18 06:36:06,036 INFO L280 TraceCheckUtils]: 28: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-18 06:36:06,036 INFO L280 TraceCheckUtils]: 29: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-18 06:36:06,037 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #125#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:06,037 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 [2020-07-18 06:36:06,038 INFO L280 TraceCheckUtils]: 32: Hoare triple {14552#(<= 0 main_~i~0)} assume 0 != #t~nondet2; {14552#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:06,038 INFO L280 TraceCheckUtils]: 33: Hoare triple {14552#(<= 0 main_~i~0)} havoc #t~nondet2; {14552#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:06,038 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 [2020-07-18 06:36:06,039 INFO L280 TraceCheckUtils]: 35: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-18 06:36:06,039 INFO L280 TraceCheckUtils]: 36: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-18 06:36:06,039 INFO L280 TraceCheckUtils]: 37: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-18 06:36:06,039 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #147#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:06,040 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 [2020-07-18 06:36:06,040 INFO L280 TraceCheckUtils]: 40: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-18 06:36:06,040 INFO L280 TraceCheckUtils]: 41: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-18 06:36:06,040 INFO L280 TraceCheckUtils]: 42: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-18 06:36:06,041 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #149#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:06,041 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 [2020-07-18 06:36:06,041 INFO L280 TraceCheckUtils]: 45: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-18 06:36:06,041 INFO L280 TraceCheckUtils]: 46: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-18 06:36:06,042 INFO L280 TraceCheckUtils]: 47: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-18 06:36:06,042 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #151#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:06,042 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 [2020-07-18 06:36:06,043 INFO L280 TraceCheckUtils]: 50: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-18 06:36:06,043 INFO L280 TraceCheckUtils]: 51: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-18 06:36:06,043 INFO L280 TraceCheckUtils]: 52: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-18 06:36:06,044 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #153#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:06,044 INFO L280 TraceCheckUtils]: 54: Hoare triple {14552#(<= 0 main_~i~0)} #t~post8 := ~j~0; {14552#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:06,044 INFO L280 TraceCheckUtils]: 55: Hoare triple {14552#(<= 0 main_~i~0)} ~j~0 := 1 + #t~post8; {14552#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:06,045 INFO L280 TraceCheckUtils]: 56: Hoare triple {14552#(<= 0 main_~i~0)} havoc #t~post8; {14552#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:06,046 INFO L280 TraceCheckUtils]: 57: Hoare triple {14552#(<= 0 main_~i~0)} #t~post9 := ~i~0; {14577#(<= 0 |main_#t~post9|)} is VALID [2020-07-18 06:36:06,046 INFO L280 TraceCheckUtils]: 58: Hoare triple {14577#(<= 0 |main_#t~post9|)} ~i~0 := 1 + #t~post9; {14578#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:06,047 INFO L280 TraceCheckUtils]: 59: Hoare triple {14578#(<= 1 main_~i~0)} havoc #t~post9; {14578#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:06,047 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 [2020-07-18 06:36:06,048 INFO L280 TraceCheckUtils]: 61: Hoare triple {14578#(<= 1 main_~i~0)} assume 1 + ~i~0 < ~len~0; {14578#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:06,048 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 [2020-07-18 06:36:06,048 INFO L280 TraceCheckUtils]: 63: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-18 06:36:06,048 INFO L280 TraceCheckUtils]: 64: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-18 06:36:06,048 INFO L280 TraceCheckUtils]: 65: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-18 06:36:06,049 INFO L275 TraceCheckUtils]: 66: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #123#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:06,049 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 [2020-07-18 06:36:06,049 INFO L280 TraceCheckUtils]: 68: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-18 06:36:06,050 INFO L280 TraceCheckUtils]: 69: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-18 06:36:06,050 INFO L280 TraceCheckUtils]: 70: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-18 06:36:06,050 INFO L275 TraceCheckUtils]: 71: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #125#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:06,051 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 [2020-07-18 06:36:06,051 INFO L280 TraceCheckUtils]: 73: Hoare triple {14578#(<= 1 main_~i~0)} assume !(0 != #t~nondet2); {14578#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:06,052 INFO L280 TraceCheckUtils]: 74: Hoare triple {14578#(<= 1 main_~i~0)} havoc #t~nondet2; {14578#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:06,052 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 [2020-07-18 06:36:06,052 INFO L280 TraceCheckUtils]: 76: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-18 06:36:06,052 INFO L280 TraceCheckUtils]: 77: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-18 06:36:06,053 INFO L280 TraceCheckUtils]: 78: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-18 06:36:06,053 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #127#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:06,053 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 [2020-07-18 06:36:06,054 INFO L280 TraceCheckUtils]: 81: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-18 06:36:06,054 INFO L280 TraceCheckUtils]: 82: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-18 06:36:06,054 INFO L280 TraceCheckUtils]: 83: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-18 06:36:06,055 INFO L275 TraceCheckUtils]: 84: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #129#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:06,055 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 [2020-07-18 06:36:06,055 INFO L280 TraceCheckUtils]: 86: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-18 06:36:06,055 INFO L280 TraceCheckUtils]: 87: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-18 06:36:06,055 INFO L280 TraceCheckUtils]: 88: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-18 06:36:06,056 INFO L275 TraceCheckUtils]: 89: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #131#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:06,056 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 [2020-07-18 06:36:06,056 INFO L280 TraceCheckUtils]: 91: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-18 06:36:06,056 INFO L280 TraceCheckUtils]: 92: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-18 06:36:06,057 INFO L280 TraceCheckUtils]: 93: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-18 06:36:06,057 INFO L275 TraceCheckUtils]: 94: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #133#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:06,058 INFO L280 TraceCheckUtils]: 95: Hoare triple {14578#(<= 1 main_~i~0)} #t~post3 := ~j~0; {14578#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:06,058 INFO L280 TraceCheckUtils]: 96: Hoare triple {14578#(<= 1 main_~i~0)} ~j~0 := 1 + #t~post3; {14578#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:06,059 INFO L280 TraceCheckUtils]: 97: Hoare triple {14578#(<= 1 main_~i~0)} havoc #t~post3; {14578#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:06,060 INFO L280 TraceCheckUtils]: 98: Hoare triple {14578#(<= 1 main_~i~0)} #t~post4 := ~i~0; {14603#(<= 1 |main_#t~post4|)} is VALID [2020-07-18 06:36:06,061 INFO L280 TraceCheckUtils]: 99: Hoare triple {14603#(<= 1 |main_#t~post4|)} ~i~0 := 1 + #t~post4; {14604#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:06,061 INFO L280 TraceCheckUtils]: 100: Hoare triple {14604#(<= 2 main_~i~0)} havoc #t~post4; {14604#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:06,061 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 [2020-07-18 06:36:06,062 INFO L280 TraceCheckUtils]: 102: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-18 06:36:06,062 INFO L280 TraceCheckUtils]: 103: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-18 06:36:06,062 INFO L280 TraceCheckUtils]: 104: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-18 06:36:06,063 INFO L275 TraceCheckUtils]: 105: Hoare quadruple {14548#true} {14604#(<= 2 main_~i~0)} #135#return; {14604#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:06,063 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 [2020-07-18 06:36:06,064 INFO L280 TraceCheckUtils]: 107: Hoare triple {14609#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {14610#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-18 06:36:06,065 INFO L280 TraceCheckUtils]: 108: Hoare triple {14610#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {14549#false} is VALID [2020-07-18 06:36:06,065 INFO L280 TraceCheckUtils]: 109: Hoare triple {14549#false} assume !false; {14549#false} is VALID [2020-07-18 06:36:06,073 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-07-18 06:36:06,073 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [921588894] [2020-07-18 06:36:06,073 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 06:36:06,073 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-18 06:36:06,073 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743650035] [2020-07-18 06:36:06,074 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 110 [2020-07-18 06:36:06,074 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 06:36:06,074 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2020-07-18 06:36:06,148 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 74 edges. 74 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:36:06,148 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-18 06:36:06,148 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 06:36:06,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-18 06:36:06,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-07-18 06:36:06,149 INFO L87 Difference]: Start difference. First operand 246 states and 318 transitions. Second operand 9 states. [2020-07-18 06:36:07,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:36:07,974 INFO L93 Difference]: Finished difference Result 293 states and 378 transitions. [2020-07-18 06:36:07,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-18 06:36:07,974 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 110 [2020-07-18 06:36:07,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 06:36:07,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-18 06:36:07,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 186 transitions. [2020-07-18 06:36:07,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-18 06:36:07,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 186 transitions. [2020-07-18 06:36:07,980 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states and 186 transitions. [2020-07-18 06:36:08,220 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 186 edges. 186 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:36:08,228 INFO L225 Difference]: With dead ends: 293 [2020-07-18 06:36:08,228 INFO L226 Difference]: Without dead ends: 291 [2020-07-18 06:36:08,229 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2020-07-18 06:36:08,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2020-07-18 06:36:08,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 270. [2020-07-18 06:36:08,815 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 06:36:08,815 INFO L82 GeneralOperation]: Start isEquivalent. First operand 291 states. Second operand 270 states. [2020-07-18 06:36:08,815 INFO L74 IsIncluded]: Start isIncluded. First operand 291 states. Second operand 270 states. [2020-07-18 06:36:08,815 INFO L87 Difference]: Start difference. First operand 291 states. Second operand 270 states. [2020-07-18 06:36:08,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:36:08,825 INFO L93 Difference]: Finished difference Result 291 states and 376 transitions. [2020-07-18 06:36:08,825 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 376 transitions. [2020-07-18 06:36:08,827 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:36:08,827 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:36:08,827 INFO L74 IsIncluded]: Start isIncluded. First operand 270 states. Second operand 291 states. [2020-07-18 06:36:08,827 INFO L87 Difference]: Start difference. First operand 270 states. Second operand 291 states. [2020-07-18 06:36:08,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:36:08,839 INFO L93 Difference]: Finished difference Result 291 states and 376 transitions. [2020-07-18 06:36:08,839 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 376 transitions. [2020-07-18 06:36:08,840 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:36:08,840 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:36:08,840 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 06:36:08,840 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 06:36:08,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-07-18 06:36:08,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 349 transitions. [2020-07-18 06:36:08,848 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 349 transitions. Word has length 110 [2020-07-18 06:36:08,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 06:36:08,849 INFO L479 AbstractCegarLoop]: Abstraction has 270 states and 349 transitions. [2020-07-18 06:36:08,849 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-18 06:36:08,849 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 270 states and 349 transitions. [2020-07-18 06:36:09,384 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 349 edges. 349 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:36:09,385 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 349 transitions. [2020-07-18 06:36:09,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-07-18 06:36:09,390 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 06:36:09,390 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] [2020-07-18 06:36:09,390 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-07-18 06:36:09,390 INFO L427 AbstractCegarLoop]: === Iteration 16 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 06:36:09,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 06:36:09,391 INFO L82 PathProgramCache]: Analyzing trace with hash 1038471395, now seen corresponding path program 1 times [2020-07-18 06:36:09,391 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 06:36:09,391 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1343251415] [2020-07-18 06:36:09,391 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 06:36:09,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:09,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:09,508 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-18 06:36:09,509 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {16331#true} {16331#true} #119#return; {16331#true} is VALID [2020-07-18 06:36:09,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:09,512 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-18 06:36:09,513 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-18 06:36:09,513 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-18 06:36:09,513 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #123#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:09,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:09,517 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-18 06:36:09,517 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-18 06:36:09,517 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-18 06:36:09,520 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #125#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:09,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:09,523 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-18 06:36:09,523 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-18 06:36:09,524 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-18 06:36:09,525 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #127#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:09,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:09,528 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-18 06:36:09,529 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-18 06:36:09,529 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-18 06:36:09,530 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #129#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:09,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:09,536 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-18 06:36:09,537 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-18 06:36:09,537 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-18 06:36:09,538 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #131#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:09,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:09,544 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-18 06:36:09,545 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-18 06:36:09,545 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-18 06:36:09,546 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #133#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:09,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:09,551 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-18 06:36:09,551 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-18 06:36:09,551 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-18 06:36:09,552 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16361#(<= 1 main_~i~0)} #135#return; {16361#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:09,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:09,556 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-18 06:36:09,557 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-18 06:36:09,557 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-18 06:36:09,558 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16361#(<= 1 main_~i~0)} #137#return; {16361#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:09,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:09,562 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-18 06:36:09,562 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-18 06:36:09,563 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-18 06:36:09,563 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16361#(<= 1 main_~i~0)} #139#return; {16361#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:09,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:09,568 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-18 06:36:09,569 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-18 06:36:09,569 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-18 06:36:09,571 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16361#(<= 1 main_~i~0)} #141#return; {16361#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:09,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:09,575 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-18 06:36:09,575 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-18 06:36:09,575 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-18 06:36:09,576 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16379#(<= 2 main_~i~0)} #143#return; {16379#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:09,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:09,580 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-18 06:36:09,580 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-18 06:36:09,580 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-18 06:36:09,581 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16379#(<= 2 main_~i~0)} #145#return; {16379#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:09,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:09,587 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-18 06:36:09,587 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-18 06:36:09,587 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-18 06:36:09,588 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16379#(<= 2 main_~i~0)} #123#return; {16379#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:09,588 INFO L263 TraceCheckUtils]: 0: Hoare triple {16331#true} call ULTIMATE.init(); {16331#true} is VALID [2020-07-18 06:36:09,588 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-18 06:36:09,589 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {16331#true} {16331#true} #119#return; {16331#true} is VALID [2020-07-18 06:36:09,589 INFO L263 TraceCheckUtils]: 3: Hoare triple {16331#true} call #t~ret10 := main(); {16331#true} is VALID [2020-07-18 06:36:09,589 INFO L280 TraceCheckUtils]: 4: Hoare triple {16331#true} havoc ~len~0; {16331#true} is VALID [2020-07-18 06:36:09,589 INFO L280 TraceCheckUtils]: 5: Hoare triple {16331#true} havoc ~i~0; {16331#true} is VALID [2020-07-18 06:36:09,589 INFO L280 TraceCheckUtils]: 6: Hoare triple {16331#true} havoc ~j~0; {16331#true} is VALID [2020-07-18 06:36:09,589 INFO L280 TraceCheckUtils]: 7: Hoare triple {16331#true} havoc ~bufsize~0; {16331#true} is VALID [2020-07-18 06:36:09,590 INFO L280 TraceCheckUtils]: 8: Hoare triple {16331#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {16331#true} is VALID [2020-07-18 06:36:09,590 INFO L280 TraceCheckUtils]: 9: Hoare triple {16331#true} ~bufsize~0 := #t~nondet0; {16331#true} is VALID [2020-07-18 06:36:09,590 INFO L280 TraceCheckUtils]: 10: Hoare triple {16331#true} havoc #t~nondet0; {16331#true} is VALID [2020-07-18 06:36:09,590 INFO L280 TraceCheckUtils]: 11: Hoare triple {16331#true} assume !(~bufsize~0 < 0); {16331#true} is VALID [2020-07-18 06:36:09,590 INFO L280 TraceCheckUtils]: 12: Hoare triple {16331#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {16331#true} is VALID [2020-07-18 06:36:09,590 INFO L280 TraceCheckUtils]: 13: Hoare triple {16331#true} ~len~0 := #t~nondet1; {16331#true} is VALID [2020-07-18 06:36:09,591 INFO L280 TraceCheckUtils]: 14: Hoare triple {16331#true} havoc #t~nondet1; {16331#true} is VALID [2020-07-18 06:36:09,591 INFO L280 TraceCheckUtils]: 15: Hoare triple {16331#true} ~limit~0 := ~bufsize~0 - 4; {16331#true} is VALID [2020-07-18 06:36:09,592 INFO L280 TraceCheckUtils]: 16: Hoare triple {16331#true} ~i~0 := 0; {16335#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:09,592 INFO L280 TraceCheckUtils]: 17: Hoare triple {16335#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0); {16335#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:09,593 INFO L280 TraceCheckUtils]: 18: Hoare triple {16335#(<= 0 main_~i~0)} ~j~0 := 0; {16335#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:09,593 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 [2020-07-18 06:36:09,594 INFO L280 TraceCheckUtils]: 20: Hoare triple {16335#(<= 0 main_~i~0)} assume 1 + ~i~0 < ~len~0; {16335#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:09,594 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 [2020-07-18 06:36:09,594 INFO L280 TraceCheckUtils]: 22: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-18 06:36:09,594 INFO L280 TraceCheckUtils]: 23: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-18 06:36:09,594 INFO L280 TraceCheckUtils]: 24: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-18 06:36:09,595 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #123#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:09,595 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 [2020-07-18 06:36:09,595 INFO L280 TraceCheckUtils]: 27: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-18 06:36:09,596 INFO L280 TraceCheckUtils]: 28: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-18 06:36:09,596 INFO L280 TraceCheckUtils]: 29: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-18 06:36:09,596 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #125#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:09,597 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 [2020-07-18 06:36:09,598 INFO L280 TraceCheckUtils]: 32: Hoare triple {16335#(<= 0 main_~i~0)} assume !(0 != #t~nondet2); {16335#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:09,598 INFO L280 TraceCheckUtils]: 33: Hoare triple {16335#(<= 0 main_~i~0)} havoc #t~nondet2; {16335#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:09,599 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 [2020-07-18 06:36:09,599 INFO L280 TraceCheckUtils]: 35: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-18 06:36:09,599 INFO L280 TraceCheckUtils]: 36: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-18 06:36:09,599 INFO L280 TraceCheckUtils]: 37: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-18 06:36:09,600 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #127#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:09,600 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 [2020-07-18 06:36:09,600 INFO L280 TraceCheckUtils]: 40: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-18 06:36:09,600 INFO L280 TraceCheckUtils]: 41: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-18 06:36:09,600 INFO L280 TraceCheckUtils]: 42: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-18 06:36:09,601 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #129#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:09,602 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 [2020-07-18 06:36:09,602 INFO L280 TraceCheckUtils]: 45: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-18 06:36:09,602 INFO L280 TraceCheckUtils]: 46: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-18 06:36:09,602 INFO L280 TraceCheckUtils]: 47: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-18 06:36:09,603 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #131#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:09,603 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 [2020-07-18 06:36:09,603 INFO L280 TraceCheckUtils]: 50: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-18 06:36:09,603 INFO L280 TraceCheckUtils]: 51: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-18 06:36:09,604 INFO L280 TraceCheckUtils]: 52: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-18 06:36:09,604 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #133#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:09,605 INFO L280 TraceCheckUtils]: 54: Hoare triple {16335#(<= 0 main_~i~0)} #t~post3 := ~j~0; {16335#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:09,605 INFO L280 TraceCheckUtils]: 55: Hoare triple {16335#(<= 0 main_~i~0)} ~j~0 := 1 + #t~post3; {16335#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:09,606 INFO L280 TraceCheckUtils]: 56: Hoare triple {16335#(<= 0 main_~i~0)} havoc #t~post3; {16335#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:09,606 INFO L280 TraceCheckUtils]: 57: Hoare triple {16335#(<= 0 main_~i~0)} #t~post4 := ~i~0; {16360#(<= 0 |main_#t~post4|)} is VALID [2020-07-18 06:36:09,607 INFO L280 TraceCheckUtils]: 58: Hoare triple {16360#(<= 0 |main_#t~post4|)} ~i~0 := 1 + #t~post4; {16361#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:09,607 INFO L280 TraceCheckUtils]: 59: Hoare triple {16361#(<= 1 main_~i~0)} havoc #t~post4; {16361#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:09,608 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 [2020-07-18 06:36:09,608 INFO L280 TraceCheckUtils]: 61: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-18 06:36:09,608 INFO L280 TraceCheckUtils]: 62: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-18 06:36:09,608 INFO L280 TraceCheckUtils]: 63: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-18 06:36:09,609 INFO L275 TraceCheckUtils]: 64: Hoare quadruple {16331#true} {16361#(<= 1 main_~i~0)} #135#return; {16361#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:09,609 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 [2020-07-18 06:36:09,609 INFO L280 TraceCheckUtils]: 66: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-18 06:36:09,609 INFO L280 TraceCheckUtils]: 67: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-18 06:36:09,609 INFO L280 TraceCheckUtils]: 68: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-18 06:36:09,610 INFO L275 TraceCheckUtils]: 69: Hoare quadruple {16331#true} {16361#(<= 1 main_~i~0)} #137#return; {16361#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:09,610 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 [2020-07-18 06:36:09,610 INFO L280 TraceCheckUtils]: 71: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-18 06:36:09,611 INFO L280 TraceCheckUtils]: 72: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-18 06:36:09,611 INFO L280 TraceCheckUtils]: 73: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-18 06:36:09,611 INFO L275 TraceCheckUtils]: 74: Hoare quadruple {16331#true} {16361#(<= 1 main_~i~0)} #139#return; {16361#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:09,612 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 [2020-07-18 06:36:09,612 INFO L280 TraceCheckUtils]: 76: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-18 06:36:09,612 INFO L280 TraceCheckUtils]: 77: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-18 06:36:09,612 INFO L280 TraceCheckUtils]: 78: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-18 06:36:09,613 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {16331#true} {16361#(<= 1 main_~i~0)} #141#return; {16361#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:09,613 INFO L280 TraceCheckUtils]: 80: Hoare triple {16361#(<= 1 main_~i~0)} #t~post5 := ~j~0; {16361#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:09,617 INFO L280 TraceCheckUtils]: 81: Hoare triple {16361#(<= 1 main_~i~0)} ~j~0 := 1 + #t~post5; {16361#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:09,618 INFO L280 TraceCheckUtils]: 82: Hoare triple {16361#(<= 1 main_~i~0)} havoc #t~post5; {16361#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:09,619 INFO L280 TraceCheckUtils]: 83: Hoare triple {16361#(<= 1 main_~i~0)} #t~post6 := ~i~0; {16378#(<= 1 |main_#t~post6|)} is VALID [2020-07-18 06:36:09,619 INFO L280 TraceCheckUtils]: 84: Hoare triple {16378#(<= 1 |main_#t~post6|)} ~i~0 := 1 + #t~post6; {16379#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:09,620 INFO L280 TraceCheckUtils]: 85: Hoare triple {16379#(<= 2 main_~i~0)} havoc #t~post6; {16379#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:09,620 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 [2020-07-18 06:36:09,620 INFO L280 TraceCheckUtils]: 87: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-18 06:36:09,620 INFO L280 TraceCheckUtils]: 88: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-18 06:36:09,621 INFO L280 TraceCheckUtils]: 89: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-18 06:36:09,621 INFO L275 TraceCheckUtils]: 90: Hoare quadruple {16331#true} {16379#(<= 2 main_~i~0)} #143#return; {16379#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:09,622 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 [2020-07-18 06:36:09,622 INFO L280 TraceCheckUtils]: 92: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-18 06:36:09,622 INFO L280 TraceCheckUtils]: 93: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-18 06:36:09,622 INFO L280 TraceCheckUtils]: 94: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-18 06:36:09,623 INFO L275 TraceCheckUtils]: 95: Hoare quadruple {16331#true} {16379#(<= 2 main_~i~0)} #145#return; {16379#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:09,623 INFO L280 TraceCheckUtils]: 96: Hoare triple {16379#(<= 2 main_~i~0)} #t~post7 := ~j~0; {16379#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:09,624 INFO L280 TraceCheckUtils]: 97: Hoare triple {16379#(<= 2 main_~i~0)} ~j~0 := 1 + #t~post7; {16379#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:09,625 INFO L280 TraceCheckUtils]: 98: Hoare triple {16379#(<= 2 main_~i~0)} havoc #t~post7; {16379#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:09,625 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 [2020-07-18 06:36:09,626 INFO L280 TraceCheckUtils]: 100: Hoare triple {16379#(<= 2 main_~i~0)} assume 1 + ~i~0 < ~len~0; {16379#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:09,626 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 [2020-07-18 06:36:09,626 INFO L280 TraceCheckUtils]: 102: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-18 06:36:09,627 INFO L280 TraceCheckUtils]: 103: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-18 06:36:09,627 INFO L280 TraceCheckUtils]: 104: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-18 06:36:09,627 INFO L275 TraceCheckUtils]: 105: Hoare quadruple {16331#true} {16379#(<= 2 main_~i~0)} #123#return; {16379#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:09,628 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 [2020-07-18 06:36:09,629 INFO L280 TraceCheckUtils]: 107: Hoare triple {16392#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {16393#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-18 06:36:09,629 INFO L280 TraceCheckUtils]: 108: Hoare triple {16393#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {16332#false} is VALID [2020-07-18 06:36:09,629 INFO L280 TraceCheckUtils]: 109: Hoare triple {16332#false} assume !false; {16332#false} is VALID [2020-07-18 06:36:09,637 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-07-18 06:36:09,637 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1343251415] [2020-07-18 06:36:09,647 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 06:36:09,647 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-18 06:36:09,647 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861793337] [2020-07-18 06:36:09,648 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 110 [2020-07-18 06:36:09,648 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 06:36:09,648 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2020-07-18 06:36:09,727 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 74 edges. 74 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:36:09,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-18 06:36:09,727 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 06:36:09,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-18 06:36:09,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-07-18 06:36:09,727 INFO L87 Difference]: Start difference. First operand 270 states and 349 transitions. Second operand 9 states. [2020-07-18 06:36:12,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:36:12,616 INFO L93 Difference]: Finished difference Result 372 states and 494 transitions. [2020-07-18 06:36:12,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-18 06:36:12,617 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 110 [2020-07-18 06:36:12,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 06:36:12,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-18 06:36:12,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 194 transitions. [2020-07-18 06:36:12,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-18 06:36:12,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 194 transitions. [2020-07-18 06:36:12,627 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states and 194 transitions. [2020-07-18 06:36:12,958 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 194 edges. 194 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:36:12,979 INFO L225 Difference]: With dead ends: 372 [2020-07-18 06:36:12,979 INFO L226 Difference]: Without dead ends: 368 [2020-07-18 06:36:12,981 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 [2020-07-18 06:36:12,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2020-07-18 06:36:14,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 345. [2020-07-18 06:36:14,265 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 06:36:14,265 INFO L82 GeneralOperation]: Start isEquivalent. First operand 368 states. Second operand 345 states. [2020-07-18 06:36:14,265 INFO L74 IsIncluded]: Start isIncluded. First operand 368 states. Second operand 345 states. [2020-07-18 06:36:14,266 INFO L87 Difference]: Start difference. First operand 368 states. Second operand 345 states. [2020-07-18 06:36:14,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:36:14,288 INFO L93 Difference]: Finished difference Result 368 states and 488 transitions. [2020-07-18 06:36:14,289 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 488 transitions. [2020-07-18 06:36:14,291 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:36:14,291 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:36:14,291 INFO L74 IsIncluded]: Start isIncluded. First operand 345 states. Second operand 368 states. [2020-07-18 06:36:14,292 INFO L87 Difference]: Start difference. First operand 345 states. Second operand 368 states. [2020-07-18 06:36:14,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:36:14,314 INFO L93 Difference]: Finished difference Result 368 states and 488 transitions. [2020-07-18 06:36:14,314 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 488 transitions. [2020-07-18 06:36:14,316 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:36:14,316 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:36:14,317 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 06:36:14,317 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 06:36:14,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-07-18 06:36:14,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 458 transitions. [2020-07-18 06:36:14,337 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 458 transitions. Word has length 110 [2020-07-18 06:36:14,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 06:36:14,338 INFO L479 AbstractCegarLoop]: Abstraction has 345 states and 458 transitions. [2020-07-18 06:36:14,338 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-18 06:36:14,338 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 345 states and 458 transitions. [2020-07-18 06:36:15,323 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 458 edges. 458 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:36:15,323 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 458 transitions. [2020-07-18 06:36:15,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-07-18 06:36:15,324 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 06:36:15,325 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] [2020-07-18 06:36:15,325 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-07-18 06:36:15,325 INFO L427 AbstractCegarLoop]: === Iteration 17 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 06:36:15,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 06:36:15,326 INFO L82 PathProgramCache]: Analyzing trace with hash 1539222205, now seen corresponding path program 1 times [2020-07-18 06:36:15,326 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 06:36:15,326 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [117847740] [2020-07-18 06:36:15,326 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 06:36:15,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:15,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:15,427 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-18 06:36:15,427 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {18578#true} {18578#true} #119#return; {18578#true} is VALID [2020-07-18 06:36:15,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:15,433 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-18 06:36:15,434 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-18 06:36:15,434 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-18 06:36:15,435 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #123#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:15,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:15,438 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-18 06:36:15,438 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-18 06:36:15,439 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-18 06:36:15,439 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #125#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:15,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:15,443 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-18 06:36:15,443 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-18 06:36:15,443 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-18 06:36:15,444 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #147#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:15,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:15,448 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-18 06:36:15,448 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-18 06:36:15,448 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-18 06:36:15,449 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #149#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:15,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:15,452 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-18 06:36:15,453 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-18 06:36:15,453 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-18 06:36:15,453 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #151#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:15,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:15,457 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-18 06:36:15,457 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-18 06:36:15,457 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-18 06:36:15,458 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #153#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:15,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:15,462 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-18 06:36:15,462 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-18 06:36:15,463 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-18 06:36:15,463 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #123#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:15,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:15,468 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-18 06:36:15,468 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-18 06:36:15,468 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-18 06:36:15,470 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #125#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:15,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:15,474 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-18 06:36:15,474 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-18 06:36:15,475 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-18 06:36:15,476 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #127#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:15,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:15,481 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-18 06:36:15,481 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-18 06:36:15,482 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-18 06:36:15,483 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #129#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:15,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:15,487 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-18 06:36:15,488 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-18 06:36:15,488 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-18 06:36:15,489 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #131#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:15,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:15,494 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-18 06:36:15,494 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-18 06:36:15,494 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-18 06:36:15,495 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #133#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:15,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:15,500 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-18 06:36:15,500 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-18 06:36:15,500 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-18 06:36:15,502 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18634#(<= 2 main_~j~0)} #135#return; {18634#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:15,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:15,506 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-18 06:36:15,506 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-18 06:36:15,507 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-18 06:36:15,508 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18634#(<= 2 main_~j~0)} #137#return; {18634#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:15,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:15,521 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-18 06:36:15,521 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-18 06:36:15,522 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-18 06:36:15,523 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18634#(<= 2 main_~j~0)} #139#return; {18634#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:15,523 INFO L263 TraceCheckUtils]: 0: Hoare triple {18578#true} call ULTIMATE.init(); {18578#true} is VALID [2020-07-18 06:36:15,524 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-18 06:36:15,524 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {18578#true} {18578#true} #119#return; {18578#true} is VALID [2020-07-18 06:36:15,525 INFO L263 TraceCheckUtils]: 3: Hoare triple {18578#true} call #t~ret10 := main(); {18578#true} is VALID [2020-07-18 06:36:15,525 INFO L280 TraceCheckUtils]: 4: Hoare triple {18578#true} havoc ~len~0; {18578#true} is VALID [2020-07-18 06:36:15,525 INFO L280 TraceCheckUtils]: 5: Hoare triple {18578#true} havoc ~i~0; {18578#true} is VALID [2020-07-18 06:36:15,526 INFO L280 TraceCheckUtils]: 6: Hoare triple {18578#true} havoc ~j~0; {18578#true} is VALID [2020-07-18 06:36:15,526 INFO L280 TraceCheckUtils]: 7: Hoare triple {18578#true} havoc ~bufsize~0; {18578#true} is VALID [2020-07-18 06:36:15,526 INFO L280 TraceCheckUtils]: 8: Hoare triple {18578#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {18578#true} is VALID [2020-07-18 06:36:15,527 INFO L280 TraceCheckUtils]: 9: Hoare triple {18578#true} ~bufsize~0 := #t~nondet0; {18578#true} is VALID [2020-07-18 06:36:15,527 INFO L280 TraceCheckUtils]: 10: Hoare triple {18578#true} havoc #t~nondet0; {18578#true} is VALID [2020-07-18 06:36:15,527 INFO L280 TraceCheckUtils]: 11: Hoare triple {18578#true} assume !(~bufsize~0 < 0); {18578#true} is VALID [2020-07-18 06:36:15,528 INFO L280 TraceCheckUtils]: 12: Hoare triple {18578#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {18578#true} is VALID [2020-07-18 06:36:15,528 INFO L280 TraceCheckUtils]: 13: Hoare triple {18578#true} ~len~0 := #t~nondet1; {18578#true} is VALID [2020-07-18 06:36:15,528 INFO L280 TraceCheckUtils]: 14: Hoare triple {18578#true} havoc #t~nondet1; {18578#true} is VALID [2020-07-18 06:36:15,528 INFO L280 TraceCheckUtils]: 15: Hoare triple {18578#true} ~limit~0 := ~bufsize~0 - 4; {18578#true} is VALID [2020-07-18 06:36:15,529 INFO L280 TraceCheckUtils]: 16: Hoare triple {18578#true} ~i~0 := 0; {18578#true} is VALID [2020-07-18 06:36:15,529 INFO L280 TraceCheckUtils]: 17: Hoare triple {18578#true} assume !!(~i~0 < ~len~0); {18578#true} is VALID [2020-07-18 06:36:15,530 INFO L280 TraceCheckUtils]: 18: Hoare triple {18578#true} ~j~0 := 0; {18582#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:15,531 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 [2020-07-18 06:36:15,532 INFO L280 TraceCheckUtils]: 20: Hoare triple {18582#(<= 0 main_~j~0)} assume 1 + ~i~0 < ~len~0; {18582#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:15,532 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 [2020-07-18 06:36:15,532 INFO L280 TraceCheckUtils]: 22: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-18 06:36:15,533 INFO L280 TraceCheckUtils]: 23: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-18 06:36:15,533 INFO L280 TraceCheckUtils]: 24: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-18 06:36:15,534 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #123#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:15,535 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 [2020-07-18 06:36:15,535 INFO L280 TraceCheckUtils]: 27: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-18 06:36:15,535 INFO L280 TraceCheckUtils]: 28: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-18 06:36:15,535 INFO L280 TraceCheckUtils]: 29: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-18 06:36:15,537 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #125#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:15,537 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 [2020-07-18 06:36:15,538 INFO L280 TraceCheckUtils]: 32: Hoare triple {18582#(<= 0 main_~j~0)} assume 0 != #t~nondet2; {18582#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:15,538 INFO L280 TraceCheckUtils]: 33: Hoare triple {18582#(<= 0 main_~j~0)} havoc #t~nondet2; {18582#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:15,539 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 [2020-07-18 06:36:15,539 INFO L280 TraceCheckUtils]: 35: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-18 06:36:15,539 INFO L280 TraceCheckUtils]: 36: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-18 06:36:15,539 INFO L280 TraceCheckUtils]: 37: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-18 06:36:15,540 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #147#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:15,540 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 [2020-07-18 06:36:15,540 INFO L280 TraceCheckUtils]: 40: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-18 06:36:15,541 INFO L280 TraceCheckUtils]: 41: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-18 06:36:15,541 INFO L280 TraceCheckUtils]: 42: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-18 06:36:15,542 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #149#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:15,542 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 [2020-07-18 06:36:15,543 INFO L280 TraceCheckUtils]: 45: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-18 06:36:15,543 INFO L280 TraceCheckUtils]: 46: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-18 06:36:15,543 INFO L280 TraceCheckUtils]: 47: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-18 06:36:15,544 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #151#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:15,545 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 [2020-07-18 06:36:15,545 INFO L280 TraceCheckUtils]: 50: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-18 06:36:15,545 INFO L280 TraceCheckUtils]: 51: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-18 06:36:15,546 INFO L280 TraceCheckUtils]: 52: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-18 06:36:15,547 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #153#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:15,548 INFO L280 TraceCheckUtils]: 54: Hoare triple {18582#(<= 0 main_~j~0)} #t~post8 := ~j~0; {18607#(<= 0 |main_#t~post8|)} is VALID [2020-07-18 06:36:15,549 INFO L280 TraceCheckUtils]: 55: Hoare triple {18607#(<= 0 |main_#t~post8|)} ~j~0 := 1 + #t~post8; {18608#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:15,550 INFO L280 TraceCheckUtils]: 56: Hoare triple {18608#(<= 1 main_~j~0)} havoc #t~post8; {18608#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:15,550 INFO L280 TraceCheckUtils]: 57: Hoare triple {18608#(<= 1 main_~j~0)} #t~post9 := ~i~0; {18608#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:15,551 INFO L280 TraceCheckUtils]: 58: Hoare triple {18608#(<= 1 main_~j~0)} ~i~0 := 1 + #t~post9; {18608#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:15,552 INFO L280 TraceCheckUtils]: 59: Hoare triple {18608#(<= 1 main_~j~0)} havoc #t~post9; {18608#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:15,553 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 [2020-07-18 06:36:15,553 INFO L280 TraceCheckUtils]: 61: Hoare triple {18608#(<= 1 main_~j~0)} assume 1 + ~i~0 < ~len~0; {18608#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:15,554 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 [2020-07-18 06:36:15,554 INFO L280 TraceCheckUtils]: 63: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-18 06:36:15,554 INFO L280 TraceCheckUtils]: 64: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-18 06:36:15,555 INFO L280 TraceCheckUtils]: 65: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-18 06:36:15,556 INFO L275 TraceCheckUtils]: 66: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #123#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:15,556 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 [2020-07-18 06:36:15,557 INFO L280 TraceCheckUtils]: 68: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-18 06:36:15,557 INFO L280 TraceCheckUtils]: 69: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-18 06:36:15,557 INFO L280 TraceCheckUtils]: 70: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-18 06:36:15,558 INFO L275 TraceCheckUtils]: 71: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #125#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:15,559 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 [2020-07-18 06:36:15,560 INFO L280 TraceCheckUtils]: 73: Hoare triple {18608#(<= 1 main_~j~0)} assume !(0 != #t~nondet2); {18608#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:15,561 INFO L280 TraceCheckUtils]: 74: Hoare triple {18608#(<= 1 main_~j~0)} havoc #t~nondet2; {18608#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:15,561 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 [2020-07-18 06:36:15,561 INFO L280 TraceCheckUtils]: 76: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-18 06:36:15,562 INFO L280 TraceCheckUtils]: 77: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-18 06:36:15,562 INFO L280 TraceCheckUtils]: 78: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-18 06:36:15,563 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #127#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:15,564 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 [2020-07-18 06:36:15,564 INFO L280 TraceCheckUtils]: 81: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-18 06:36:15,564 INFO L280 TraceCheckUtils]: 82: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-18 06:36:15,564 INFO L280 TraceCheckUtils]: 83: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-18 06:36:15,565 INFO L275 TraceCheckUtils]: 84: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #129#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:15,566 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 [2020-07-18 06:36:15,566 INFO L280 TraceCheckUtils]: 86: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-18 06:36:15,566 INFO L280 TraceCheckUtils]: 87: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-18 06:36:15,567 INFO L280 TraceCheckUtils]: 88: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-18 06:36:15,568 INFO L275 TraceCheckUtils]: 89: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #131#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:15,568 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 [2020-07-18 06:36:15,568 INFO L280 TraceCheckUtils]: 91: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-18 06:36:15,569 INFO L280 TraceCheckUtils]: 92: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-18 06:36:15,569 INFO L280 TraceCheckUtils]: 93: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-18 06:36:15,570 INFO L275 TraceCheckUtils]: 94: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #133#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:15,571 INFO L280 TraceCheckUtils]: 95: Hoare triple {18608#(<= 1 main_~j~0)} #t~post3 := ~j~0; {18633#(<= 1 |main_#t~post3|)} is VALID [2020-07-18 06:36:15,572 INFO L280 TraceCheckUtils]: 96: Hoare triple {18633#(<= 1 |main_#t~post3|)} ~j~0 := 1 + #t~post3; {18634#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:15,573 INFO L280 TraceCheckUtils]: 97: Hoare triple {18634#(<= 2 main_~j~0)} havoc #t~post3; {18634#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:15,574 INFO L280 TraceCheckUtils]: 98: Hoare triple {18634#(<= 2 main_~j~0)} #t~post4 := ~i~0; {18634#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:15,575 INFO L280 TraceCheckUtils]: 99: Hoare triple {18634#(<= 2 main_~j~0)} ~i~0 := 1 + #t~post4; {18634#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:15,576 INFO L280 TraceCheckUtils]: 100: Hoare triple {18634#(<= 2 main_~j~0)} havoc #t~post4; {18634#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:15,576 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 [2020-07-18 06:36:15,576 INFO L280 TraceCheckUtils]: 102: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-18 06:36:15,577 INFO L280 TraceCheckUtils]: 103: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-18 06:36:15,577 INFO L280 TraceCheckUtils]: 104: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-18 06:36:15,578 INFO L275 TraceCheckUtils]: 105: Hoare quadruple {18578#true} {18634#(<= 2 main_~j~0)} #135#return; {18634#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:15,578 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 [2020-07-18 06:36:15,579 INFO L280 TraceCheckUtils]: 107: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-18 06:36:15,579 INFO L280 TraceCheckUtils]: 108: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-18 06:36:15,579 INFO L280 TraceCheckUtils]: 109: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-18 06:36:15,580 INFO L275 TraceCheckUtils]: 110: Hoare quadruple {18578#true} {18634#(<= 2 main_~j~0)} #137#return; {18634#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:15,581 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 [2020-07-18 06:36:15,581 INFO L280 TraceCheckUtils]: 112: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-18 06:36:15,581 INFO L280 TraceCheckUtils]: 113: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-18 06:36:15,582 INFO L280 TraceCheckUtils]: 114: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-18 06:36:15,583 INFO L275 TraceCheckUtils]: 115: Hoare quadruple {18578#true} {18634#(<= 2 main_~j~0)} #139#return; {18634#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:15,584 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 [2020-07-18 06:36:15,585 INFO L280 TraceCheckUtils]: 117: Hoare triple {18647#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {18648#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-18 06:36:15,586 INFO L280 TraceCheckUtils]: 118: Hoare triple {18648#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {18579#false} is VALID [2020-07-18 06:36:15,586 INFO L280 TraceCheckUtils]: 119: Hoare triple {18579#false} assume !false; {18579#false} is VALID [2020-07-18 06:36:15,606 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2020-07-18 06:36:15,606 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [117847740] [2020-07-18 06:36:15,607 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 06:36:15,607 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-18 06:36:15,607 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001774880] [2020-07-18 06:36:15,608 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 120 [2020-07-18 06:36:15,608 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 06:36:15,608 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2020-07-18 06:36:15,737 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 78 edges. 78 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:36:15,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-18 06:36:15,738 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 06:36:15,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-18 06:36:15,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-07-18 06:36:15,739 INFO L87 Difference]: Start difference. First operand 345 states and 458 transitions. Second operand 9 states. [2020-07-18 06:36:17,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:36:17,860 INFO L93 Difference]: Finished difference Result 379 states and 496 transitions. [2020-07-18 06:36:17,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-18 06:36:17,860 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 120 [2020-07-18 06:36:17,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 06:36:17,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-18 06:36:17,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 179 transitions. [2020-07-18 06:36:17,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-18 06:36:17,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 179 transitions. [2020-07-18 06:36:17,866 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states and 179 transitions. [2020-07-18 06:36:18,053 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 179 edges. 179 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:36:18,065 INFO L225 Difference]: With dead ends: 379 [2020-07-18 06:36:18,066 INFO L226 Difference]: Without dead ends: 377 [2020-07-18 06:36:18,068 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 [2020-07-18 06:36:18,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2020-07-18 06:36:18,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 359. [2020-07-18 06:36:18,916 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 06:36:18,916 INFO L82 GeneralOperation]: Start isEquivalent. First operand 377 states. Second operand 359 states. [2020-07-18 06:36:18,916 INFO L74 IsIncluded]: Start isIncluded. First operand 377 states. Second operand 359 states. [2020-07-18 06:36:18,916 INFO L87 Difference]: Start difference. First operand 377 states. Second operand 359 states. [2020-07-18 06:36:18,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:36:18,929 INFO L93 Difference]: Finished difference Result 377 states and 494 transitions. [2020-07-18 06:36:18,929 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 494 transitions. [2020-07-18 06:36:18,930 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:36:18,930 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:36:18,930 INFO L74 IsIncluded]: Start isIncluded. First operand 359 states. Second operand 377 states. [2020-07-18 06:36:18,931 INFO L87 Difference]: Start difference. First operand 359 states. Second operand 377 states. [2020-07-18 06:36:18,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:36:18,944 INFO L93 Difference]: Finished difference Result 377 states and 494 transitions. [2020-07-18 06:36:18,944 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 494 transitions. [2020-07-18 06:36:18,945 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:36:18,945 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:36:18,945 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 06:36:18,945 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 06:36:18,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 359 states. [2020-07-18 06:36:18,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 475 transitions. [2020-07-18 06:36:18,957 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 475 transitions. Word has length 120 [2020-07-18 06:36:18,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 06:36:18,957 INFO L479 AbstractCegarLoop]: Abstraction has 359 states and 475 transitions. [2020-07-18 06:36:18,958 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-18 06:36:18,958 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 359 states and 475 transitions. [2020-07-18 06:36:19,813 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 475 edges. 475 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:36:19,814 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 475 transitions. [2020-07-18 06:36:19,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-07-18 06:36:19,815 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 06:36:19,816 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] [2020-07-18 06:36:19,816 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-07-18 06:36:19,816 INFO L427 AbstractCegarLoop]: === Iteration 18 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 06:36:19,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 06:36:19,817 INFO L82 PathProgramCache]: Analyzing trace with hash 871752502, now seen corresponding path program 1 times [2020-07-18 06:36:19,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 06:36:19,817 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1246740007] [2020-07-18 06:36:19,818 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 06:36:19,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:19,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:19,990 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-18 06:36:19,990 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {20891#true} {20891#true} #119#return; {20891#true} is VALID [2020-07-18 06:36:19,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:19,997 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-18 06:36:19,998 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-18 06:36:19,998 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-18 06:36:19,999 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #123#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:20,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:20,003 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-18 06:36:20,004 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-18 06:36:20,004 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-18 06:36:20,005 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #125#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:20,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:20,010 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-18 06:36:20,010 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-18 06:36:20,010 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-18 06:36:20,011 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #127#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:20,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:20,015 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-18 06:36:20,016 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-18 06:36:20,016 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-18 06:36:20,017 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #129#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:20,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:20,021 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-18 06:36:20,022 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-18 06:36:20,022 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-18 06:36:20,023 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #131#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:20,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:20,027 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-18 06:36:20,028 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-18 06:36:20,028 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-18 06:36:20,029 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #133#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:20,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:20,033 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-18 06:36:20,034 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-18 06:36:20,034 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-18 06:36:20,035 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20921#(<= 1 main_~j~0)} #135#return; {20921#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:20,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:20,039 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-18 06:36:20,039 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-18 06:36:20,040 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-18 06:36:20,041 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20921#(<= 1 main_~j~0)} #137#return; {20921#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:20,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:20,045 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-18 06:36:20,045 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-18 06:36:20,046 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-18 06:36:20,047 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20921#(<= 1 main_~j~0)} #139#return; {20921#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:20,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:20,051 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-18 06:36:20,051 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-18 06:36:20,052 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-18 06:36:20,053 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20921#(<= 1 main_~j~0)} #141#return; {20921#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:20,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:20,057 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-18 06:36:20,057 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-18 06:36:20,058 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-18 06:36:20,059 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20939#(<= 2 main_~j~0)} #143#return; {20939#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:20,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:20,063 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-18 06:36:20,063 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-18 06:36:20,063 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-18 06:36:20,064 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20939#(<= 2 main_~j~0)} #145#return; {20939#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:20,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:20,069 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-18 06:36:20,069 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-18 06:36:20,069 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-18 06:36:20,070 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20949#(<= 3 main_~j~0)} #147#return; {20949#(<= 3 main_~j~0)} is VALID [2020-07-18 06:36:20,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:20,079 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-18 06:36:20,079 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-18 06:36:20,080 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-18 06:36:20,081 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20949#(<= 3 main_~j~0)} #149#return; {20949#(<= 3 main_~j~0)} is VALID [2020-07-18 06:36:20,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:20,085 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-18 06:36:20,086 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-18 06:36:20,086 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-18 06:36:20,087 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20949#(<= 3 main_~j~0)} #151#return; {20949#(<= 3 main_~j~0)} is VALID [2020-07-18 06:36:20,087 INFO L263 TraceCheckUtils]: 0: Hoare triple {20891#true} call ULTIMATE.init(); {20891#true} is VALID [2020-07-18 06:36:20,088 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-18 06:36:20,088 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {20891#true} {20891#true} #119#return; {20891#true} is VALID [2020-07-18 06:36:20,088 INFO L263 TraceCheckUtils]: 3: Hoare triple {20891#true} call #t~ret10 := main(); {20891#true} is VALID [2020-07-18 06:36:20,088 INFO L280 TraceCheckUtils]: 4: Hoare triple {20891#true} havoc ~len~0; {20891#true} is VALID [2020-07-18 06:36:20,089 INFO L280 TraceCheckUtils]: 5: Hoare triple {20891#true} havoc ~i~0; {20891#true} is VALID [2020-07-18 06:36:20,089 INFO L280 TraceCheckUtils]: 6: Hoare triple {20891#true} havoc ~j~0; {20891#true} is VALID [2020-07-18 06:36:20,089 INFO L280 TraceCheckUtils]: 7: Hoare triple {20891#true} havoc ~bufsize~0; {20891#true} is VALID [2020-07-18 06:36:20,090 INFO L280 TraceCheckUtils]: 8: Hoare triple {20891#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {20891#true} is VALID [2020-07-18 06:36:20,090 INFO L280 TraceCheckUtils]: 9: Hoare triple {20891#true} ~bufsize~0 := #t~nondet0; {20891#true} is VALID [2020-07-18 06:36:20,090 INFO L280 TraceCheckUtils]: 10: Hoare triple {20891#true} havoc #t~nondet0; {20891#true} is VALID [2020-07-18 06:36:20,090 INFO L280 TraceCheckUtils]: 11: Hoare triple {20891#true} assume !(~bufsize~0 < 0); {20891#true} is VALID [2020-07-18 06:36:20,091 INFO L280 TraceCheckUtils]: 12: Hoare triple {20891#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {20891#true} is VALID [2020-07-18 06:36:20,091 INFO L280 TraceCheckUtils]: 13: Hoare triple {20891#true} ~len~0 := #t~nondet1; {20891#true} is VALID [2020-07-18 06:36:20,091 INFO L280 TraceCheckUtils]: 14: Hoare triple {20891#true} havoc #t~nondet1; {20891#true} is VALID [2020-07-18 06:36:20,092 INFO L280 TraceCheckUtils]: 15: Hoare triple {20891#true} ~limit~0 := ~bufsize~0 - 4; {20891#true} is VALID [2020-07-18 06:36:20,092 INFO L280 TraceCheckUtils]: 16: Hoare triple {20891#true} ~i~0 := 0; {20891#true} is VALID [2020-07-18 06:36:20,092 INFO L280 TraceCheckUtils]: 17: Hoare triple {20891#true} assume !!(~i~0 < ~len~0); {20891#true} is VALID [2020-07-18 06:36:20,093 INFO L280 TraceCheckUtils]: 18: Hoare triple {20891#true} ~j~0 := 0; {20895#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:20,094 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 [2020-07-18 06:36:20,095 INFO L280 TraceCheckUtils]: 20: Hoare triple {20895#(<= 0 main_~j~0)} assume 1 + ~i~0 < ~len~0; {20895#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:20,095 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 [2020-07-18 06:36:20,095 INFO L280 TraceCheckUtils]: 22: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-18 06:36:20,096 INFO L280 TraceCheckUtils]: 23: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-18 06:36:20,096 INFO L280 TraceCheckUtils]: 24: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-18 06:36:20,097 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #123#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:20,097 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 [2020-07-18 06:36:20,098 INFO L280 TraceCheckUtils]: 27: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-18 06:36:20,098 INFO L280 TraceCheckUtils]: 28: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-18 06:36:20,098 INFO L280 TraceCheckUtils]: 29: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-18 06:36:20,099 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #125#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:20,100 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 [2020-07-18 06:36:20,101 INFO L280 TraceCheckUtils]: 32: Hoare triple {20895#(<= 0 main_~j~0)} assume !(0 != #t~nondet2); {20895#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:20,102 INFO L280 TraceCheckUtils]: 33: Hoare triple {20895#(<= 0 main_~j~0)} havoc #t~nondet2; {20895#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:20,102 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 [2020-07-18 06:36:20,102 INFO L280 TraceCheckUtils]: 35: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-18 06:36:20,103 INFO L280 TraceCheckUtils]: 36: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-18 06:36:20,103 INFO L280 TraceCheckUtils]: 37: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-18 06:36:20,104 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #127#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:20,104 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 [2020-07-18 06:36:20,105 INFO L280 TraceCheckUtils]: 40: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-18 06:36:20,105 INFO L280 TraceCheckUtils]: 41: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-18 06:36:20,105 INFO L280 TraceCheckUtils]: 42: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-18 06:36:20,106 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #129#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:20,107 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 [2020-07-18 06:36:20,107 INFO L280 TraceCheckUtils]: 45: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-18 06:36:20,107 INFO L280 TraceCheckUtils]: 46: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-18 06:36:20,107 INFO L280 TraceCheckUtils]: 47: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-18 06:36:20,108 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #131#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:20,109 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 [2020-07-18 06:36:20,109 INFO L280 TraceCheckUtils]: 50: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-18 06:36:20,109 INFO L280 TraceCheckUtils]: 51: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-18 06:36:20,110 INFO L280 TraceCheckUtils]: 52: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-18 06:36:20,111 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #133#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:20,112 INFO L280 TraceCheckUtils]: 54: Hoare triple {20895#(<= 0 main_~j~0)} #t~post3 := ~j~0; {20920#(<= 0 |main_#t~post3|)} is VALID [2020-07-18 06:36:20,113 INFO L280 TraceCheckUtils]: 55: Hoare triple {20920#(<= 0 |main_#t~post3|)} ~j~0 := 1 + #t~post3; {20921#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:20,113 INFO L280 TraceCheckUtils]: 56: Hoare triple {20921#(<= 1 main_~j~0)} havoc #t~post3; {20921#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:20,114 INFO L280 TraceCheckUtils]: 57: Hoare triple {20921#(<= 1 main_~j~0)} #t~post4 := ~i~0; {20921#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:20,115 INFO L280 TraceCheckUtils]: 58: Hoare triple {20921#(<= 1 main_~j~0)} ~i~0 := 1 + #t~post4; {20921#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:20,116 INFO L280 TraceCheckUtils]: 59: Hoare triple {20921#(<= 1 main_~j~0)} havoc #t~post4; {20921#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:20,116 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 [2020-07-18 06:36:20,116 INFO L280 TraceCheckUtils]: 61: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-18 06:36:20,117 INFO L280 TraceCheckUtils]: 62: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-18 06:36:20,117 INFO L280 TraceCheckUtils]: 63: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-18 06:36:20,118 INFO L275 TraceCheckUtils]: 64: Hoare quadruple {20891#true} {20921#(<= 1 main_~j~0)} #135#return; {20921#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:20,118 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 [2020-07-18 06:36:20,119 INFO L280 TraceCheckUtils]: 66: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-18 06:36:20,119 INFO L280 TraceCheckUtils]: 67: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-18 06:36:20,119 INFO L280 TraceCheckUtils]: 68: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-18 06:36:20,120 INFO L275 TraceCheckUtils]: 69: Hoare quadruple {20891#true} {20921#(<= 1 main_~j~0)} #137#return; {20921#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:20,120 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 [2020-07-18 06:36:20,121 INFO L280 TraceCheckUtils]: 71: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-18 06:36:20,121 INFO L280 TraceCheckUtils]: 72: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-18 06:36:20,121 INFO L280 TraceCheckUtils]: 73: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-18 06:36:20,122 INFO L275 TraceCheckUtils]: 74: Hoare quadruple {20891#true} {20921#(<= 1 main_~j~0)} #139#return; {20921#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:20,123 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 [2020-07-18 06:36:20,123 INFO L280 TraceCheckUtils]: 76: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-18 06:36:20,123 INFO L280 TraceCheckUtils]: 77: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-18 06:36:20,124 INFO L280 TraceCheckUtils]: 78: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-18 06:36:20,124 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {20891#true} {20921#(<= 1 main_~j~0)} #141#return; {20921#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:20,125 INFO L280 TraceCheckUtils]: 80: Hoare triple {20921#(<= 1 main_~j~0)} #t~post5 := ~j~0; {20938#(<= 1 |main_#t~post5|)} is VALID [2020-07-18 06:36:20,126 INFO L280 TraceCheckUtils]: 81: Hoare triple {20938#(<= 1 |main_#t~post5|)} ~j~0 := 1 + #t~post5; {20939#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:20,127 INFO L280 TraceCheckUtils]: 82: Hoare triple {20939#(<= 2 main_~j~0)} havoc #t~post5; {20939#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:20,127 INFO L280 TraceCheckUtils]: 83: Hoare triple {20939#(<= 2 main_~j~0)} #t~post6 := ~i~0; {20939#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:20,128 INFO L280 TraceCheckUtils]: 84: Hoare triple {20939#(<= 2 main_~j~0)} ~i~0 := 1 + #t~post6; {20939#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:20,128 INFO L280 TraceCheckUtils]: 85: Hoare triple {20939#(<= 2 main_~j~0)} havoc #t~post6; {20939#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:20,129 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 [2020-07-18 06:36:20,129 INFO L280 TraceCheckUtils]: 87: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-18 06:36:20,129 INFO L280 TraceCheckUtils]: 88: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-18 06:36:20,129 INFO L280 TraceCheckUtils]: 89: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-18 06:36:20,130 INFO L275 TraceCheckUtils]: 90: Hoare quadruple {20891#true} {20939#(<= 2 main_~j~0)} #143#return; {20939#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:20,130 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 [2020-07-18 06:36:20,130 INFO L280 TraceCheckUtils]: 92: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-18 06:36:20,131 INFO L280 TraceCheckUtils]: 93: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-18 06:36:20,131 INFO L280 TraceCheckUtils]: 94: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-18 06:36:20,132 INFO L275 TraceCheckUtils]: 95: Hoare quadruple {20891#true} {20939#(<= 2 main_~j~0)} #145#return; {20939#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:20,133 INFO L280 TraceCheckUtils]: 96: Hoare triple {20939#(<= 2 main_~j~0)} #t~post7 := ~j~0; {20948#(<= 2 |main_#t~post7|)} is VALID [2020-07-18 06:36:20,134 INFO L280 TraceCheckUtils]: 97: Hoare triple {20948#(<= 2 |main_#t~post7|)} ~j~0 := 1 + #t~post7; {20949#(<= 3 main_~j~0)} is VALID [2020-07-18 06:36:20,135 INFO L280 TraceCheckUtils]: 98: Hoare triple {20949#(<= 3 main_~j~0)} havoc #t~post7; {20949#(<= 3 main_~j~0)} is VALID [2020-07-18 06:36:20,136 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 [2020-07-18 06:36:20,137 INFO L280 TraceCheckUtils]: 100: Hoare triple {20949#(<= 3 main_~j~0)} assume !(1 + ~i~0 < ~len~0); {20949#(<= 3 main_~j~0)} is VALID [2020-07-18 06:36:20,137 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 [2020-07-18 06:36:20,137 INFO L280 TraceCheckUtils]: 102: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-18 06:36:20,138 INFO L280 TraceCheckUtils]: 103: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-18 06:36:20,138 INFO L280 TraceCheckUtils]: 104: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-18 06:36:20,139 INFO L275 TraceCheckUtils]: 105: Hoare quadruple {20891#true} {20949#(<= 3 main_~j~0)} #147#return; {20949#(<= 3 main_~j~0)} is VALID [2020-07-18 06:36:20,139 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 [2020-07-18 06:36:20,140 INFO L280 TraceCheckUtils]: 107: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-18 06:36:20,140 INFO L280 TraceCheckUtils]: 108: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-18 06:36:20,140 INFO L280 TraceCheckUtils]: 109: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-18 06:36:20,141 INFO L275 TraceCheckUtils]: 110: Hoare quadruple {20891#true} {20949#(<= 3 main_~j~0)} #149#return; {20949#(<= 3 main_~j~0)} is VALID [2020-07-18 06:36:20,142 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 [2020-07-18 06:36:20,142 INFO L280 TraceCheckUtils]: 112: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-18 06:36:20,142 INFO L280 TraceCheckUtils]: 113: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-18 06:36:20,142 INFO L280 TraceCheckUtils]: 114: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-18 06:36:20,143 INFO L275 TraceCheckUtils]: 115: Hoare quadruple {20891#true} {20949#(<= 3 main_~j~0)} #151#return; {20949#(<= 3 main_~j~0)} is VALID [2020-07-18 06:36:20,145 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 [2020-07-18 06:36:20,146 INFO L280 TraceCheckUtils]: 117: Hoare triple {20962#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {20963#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-18 06:36:20,147 INFO L280 TraceCheckUtils]: 118: Hoare triple {20963#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {20892#false} is VALID [2020-07-18 06:36:20,147 INFO L280 TraceCheckUtils]: 119: Hoare triple {20892#false} assume !false; {20892#false} is VALID [2020-07-18 06:36:20,166 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2020-07-18 06:36:20,166 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1246740007] [2020-07-18 06:36:20,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 06:36:20,167 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-18 06:36:20,167 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106242426] [2020-07-18 06:36:20,172 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 120 [2020-07-18 06:36:20,172 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 06:36:20,173 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states. [2020-07-18 06:36:20,300 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 78 edges. 78 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:36:20,300 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-18 06:36:20,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 06:36:20,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-18 06:36:20,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-07-18 06:36:20,302 INFO L87 Difference]: Start difference. First operand 359 states and 475 transitions. Second operand 11 states. [2020-07-18 06:36:22,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:36:22,899 INFO L93 Difference]: Finished difference Result 424 states and 562 transitions. [2020-07-18 06:36:22,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-18 06:36:22,899 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 120 [2020-07-18 06:36:22,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 06:36:22,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-18 06:36:22,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 186 transitions. [2020-07-18 06:36:22,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-18 06:36:22,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 186 transitions. [2020-07-18 06:36:22,905 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 16 states and 186 transitions. [2020-07-18 06:36:23,130 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 186 edges. 186 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:36:23,143 INFO L225 Difference]: With dead ends: 424 [2020-07-18 06:36:23,143 INFO L226 Difference]: Without dead ends: 418 [2020-07-18 06:36:23,144 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2020-07-18 06:36:23,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-07-18 06:36:24,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 398. [2020-07-18 06:36:24,124 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 06:36:24,124 INFO L82 GeneralOperation]: Start isEquivalent. First operand 418 states. Second operand 398 states. [2020-07-18 06:36:24,124 INFO L74 IsIncluded]: Start isIncluded. First operand 418 states. Second operand 398 states. [2020-07-18 06:36:24,124 INFO L87 Difference]: Start difference. First operand 418 states. Second operand 398 states. [2020-07-18 06:36:24,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:36:24,136 INFO L93 Difference]: Finished difference Result 418 states and 551 transitions. [2020-07-18 06:36:24,136 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 551 transitions. [2020-07-18 06:36:24,138 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:36:24,138 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:36:24,138 INFO L74 IsIncluded]: Start isIncluded. First operand 398 states. Second operand 418 states. [2020-07-18 06:36:24,138 INFO L87 Difference]: Start difference. First operand 398 states. Second operand 418 states. [2020-07-18 06:36:24,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:36:24,152 INFO L93 Difference]: Finished difference Result 418 states and 551 transitions. [2020-07-18 06:36:24,153 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 551 transitions. [2020-07-18 06:36:24,154 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:36:24,154 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:36:24,154 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 06:36:24,154 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 06:36:24,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2020-07-18 06:36:24,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 529 transitions. [2020-07-18 06:36:24,169 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 529 transitions. Word has length 120 [2020-07-18 06:36:24,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 06:36:24,169 INFO L479 AbstractCegarLoop]: Abstraction has 398 states and 529 transitions. [2020-07-18 06:36:24,169 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-18 06:36:24,170 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 398 states and 529 transitions. [2020-07-18 06:36:25,086 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 529 edges. 529 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:36:25,087 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 529 transitions. [2020-07-18 06:36:25,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-07-18 06:36:25,089 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 06:36:25,089 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] [2020-07-18 06:36:25,089 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-07-18 06:36:25,089 INFO L427 AbstractCegarLoop]: === Iteration 19 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 06:36:25,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 06:36:25,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1668448602, now seen corresponding path program 1 times [2020-07-18 06:36:25,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 06:36:25,090 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1610739718] [2020-07-18 06:36:25,091 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 06:36:25,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:25,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:25,243 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-18 06:36:25,243 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {23462#true} {23462#true} #119#return; {23462#true} is VALID [2020-07-18 06:36:25,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:25,247 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-18 06:36:25,247 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-18 06:36:25,247 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-18 06:36:25,249 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #123#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:25,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:25,254 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-18 06:36:25,254 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-18 06:36:25,255 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-18 06:36:25,256 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #125#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:25,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:25,259 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-18 06:36:25,260 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-18 06:36:25,260 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-18 06:36:25,261 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #147#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:25,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:25,265 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-18 06:36:25,265 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-18 06:36:25,266 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-18 06:36:25,266 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #149#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:25,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:25,270 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-18 06:36:25,271 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-18 06:36:25,271 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-18 06:36:25,272 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #151#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:25,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:25,275 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-18 06:36:25,276 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-18 06:36:25,276 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-18 06:36:25,276 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #153#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:25,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:25,284 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-18 06:36:25,284 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-18 06:36:25,285 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-18 06:36:25,286 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #123#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:25,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:25,291 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-18 06:36:25,291 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-18 06:36:25,292 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-18 06:36:25,292 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #125#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:25,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:25,296 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-18 06:36:25,297 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-18 06:36:25,297 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-18 06:36:25,297 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #127#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:25,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:25,302 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-18 06:36:25,302 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-18 06:36:25,302 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-18 06:36:25,303 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #129#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:25,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:25,307 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-18 06:36:25,307 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-18 06:36:25,307 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-18 06:36:25,308 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #131#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:25,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:25,314 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-18 06:36:25,315 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-18 06:36:25,315 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-18 06:36:25,315 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #133#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:25,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:25,320 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-18 06:36:25,320 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-18 06:36:25,320 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-18 06:36:25,321 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23518#(<= 2 main_~j~0)} #135#return; {23518#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:25,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:25,328 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-18 06:36:25,328 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-18 06:36:25,328 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-18 06:36:25,329 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23518#(<= 2 main_~j~0)} #137#return; {23518#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:25,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:25,332 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-18 06:36:25,333 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-18 06:36:25,333 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-18 06:36:25,334 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23518#(<= 2 main_~j~0)} #139#return; {23518#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:25,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:25,337 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-18 06:36:25,337 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-18 06:36:25,337 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-18 06:36:25,338 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23518#(<= 2 main_~j~0)} #141#return; {23518#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:25,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:25,342 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-18 06:36:25,342 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-18 06:36:25,343 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-18 06:36:25,343 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23536#(<= 3 main_~j~0)} #143#return; {23536#(<= 3 main_~j~0)} is VALID [2020-07-18 06:36:25,344 INFO L263 TraceCheckUtils]: 0: Hoare triple {23462#true} call ULTIMATE.init(); {23462#true} is VALID [2020-07-18 06:36:25,344 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-18 06:36:25,344 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {23462#true} {23462#true} #119#return; {23462#true} is VALID [2020-07-18 06:36:25,344 INFO L263 TraceCheckUtils]: 3: Hoare triple {23462#true} call #t~ret10 := main(); {23462#true} is VALID [2020-07-18 06:36:25,344 INFO L280 TraceCheckUtils]: 4: Hoare triple {23462#true} havoc ~len~0; {23462#true} is VALID [2020-07-18 06:36:25,345 INFO L280 TraceCheckUtils]: 5: Hoare triple {23462#true} havoc ~i~0; {23462#true} is VALID [2020-07-18 06:36:25,345 INFO L280 TraceCheckUtils]: 6: Hoare triple {23462#true} havoc ~j~0; {23462#true} is VALID [2020-07-18 06:36:25,345 INFO L280 TraceCheckUtils]: 7: Hoare triple {23462#true} havoc ~bufsize~0; {23462#true} is VALID [2020-07-18 06:36:25,345 INFO L280 TraceCheckUtils]: 8: Hoare triple {23462#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {23462#true} is VALID [2020-07-18 06:36:25,345 INFO L280 TraceCheckUtils]: 9: Hoare triple {23462#true} ~bufsize~0 := #t~nondet0; {23462#true} is VALID [2020-07-18 06:36:25,345 INFO L280 TraceCheckUtils]: 10: Hoare triple {23462#true} havoc #t~nondet0; {23462#true} is VALID [2020-07-18 06:36:25,346 INFO L280 TraceCheckUtils]: 11: Hoare triple {23462#true} assume !(~bufsize~0 < 0); {23462#true} is VALID [2020-07-18 06:36:25,346 INFO L280 TraceCheckUtils]: 12: Hoare triple {23462#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {23462#true} is VALID [2020-07-18 06:36:25,346 INFO L280 TraceCheckUtils]: 13: Hoare triple {23462#true} ~len~0 := #t~nondet1; {23462#true} is VALID [2020-07-18 06:36:25,346 INFO L280 TraceCheckUtils]: 14: Hoare triple {23462#true} havoc #t~nondet1; {23462#true} is VALID [2020-07-18 06:36:25,346 INFO L280 TraceCheckUtils]: 15: Hoare triple {23462#true} ~limit~0 := ~bufsize~0 - 4; {23462#true} is VALID [2020-07-18 06:36:25,346 INFO L280 TraceCheckUtils]: 16: Hoare triple {23462#true} ~i~0 := 0; {23462#true} is VALID [2020-07-18 06:36:25,347 INFO L280 TraceCheckUtils]: 17: Hoare triple {23462#true} assume !!(~i~0 < ~len~0); {23462#true} is VALID [2020-07-18 06:36:25,348 INFO L280 TraceCheckUtils]: 18: Hoare triple {23462#true} ~j~0 := 0; {23466#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:25,348 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 [2020-07-18 06:36:25,349 INFO L280 TraceCheckUtils]: 20: Hoare triple {23466#(<= 0 main_~j~0)} assume 1 + ~i~0 < ~len~0; {23466#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:25,349 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 [2020-07-18 06:36:25,349 INFO L280 TraceCheckUtils]: 22: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-18 06:36:25,349 INFO L280 TraceCheckUtils]: 23: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-18 06:36:25,349 INFO L280 TraceCheckUtils]: 24: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-18 06:36:25,350 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #123#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:25,350 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 [2020-07-18 06:36:25,350 INFO L280 TraceCheckUtils]: 27: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-18 06:36:25,351 INFO L280 TraceCheckUtils]: 28: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-18 06:36:25,351 INFO L280 TraceCheckUtils]: 29: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-18 06:36:25,352 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #125#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:25,352 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 [2020-07-18 06:36:25,353 INFO L280 TraceCheckUtils]: 32: Hoare triple {23466#(<= 0 main_~j~0)} assume 0 != #t~nondet2; {23466#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:25,353 INFO L280 TraceCheckUtils]: 33: Hoare triple {23466#(<= 0 main_~j~0)} havoc #t~nondet2; {23466#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:25,353 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 [2020-07-18 06:36:25,354 INFO L280 TraceCheckUtils]: 35: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-18 06:36:25,354 INFO L280 TraceCheckUtils]: 36: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-18 06:36:25,354 INFO L280 TraceCheckUtils]: 37: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-18 06:36:25,355 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #147#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:25,355 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 [2020-07-18 06:36:25,355 INFO L280 TraceCheckUtils]: 40: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-18 06:36:25,355 INFO L280 TraceCheckUtils]: 41: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-18 06:36:25,356 INFO L280 TraceCheckUtils]: 42: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-18 06:36:25,356 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #149#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:25,357 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 [2020-07-18 06:36:25,357 INFO L280 TraceCheckUtils]: 45: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-18 06:36:25,357 INFO L280 TraceCheckUtils]: 46: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-18 06:36:25,357 INFO L280 TraceCheckUtils]: 47: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-18 06:36:25,358 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #151#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:25,358 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 [2020-07-18 06:36:25,358 INFO L280 TraceCheckUtils]: 50: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-18 06:36:25,358 INFO L280 TraceCheckUtils]: 51: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-18 06:36:25,359 INFO L280 TraceCheckUtils]: 52: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-18 06:36:25,359 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #153#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:25,360 INFO L280 TraceCheckUtils]: 54: Hoare triple {23466#(<= 0 main_~j~0)} #t~post8 := ~j~0; {23491#(<= 0 |main_#t~post8|)} is VALID [2020-07-18 06:36:25,361 INFO L280 TraceCheckUtils]: 55: Hoare triple {23491#(<= 0 |main_#t~post8|)} ~j~0 := 1 + #t~post8; {23492#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:25,361 INFO L280 TraceCheckUtils]: 56: Hoare triple {23492#(<= 1 main_~j~0)} havoc #t~post8; {23492#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:25,362 INFO L280 TraceCheckUtils]: 57: Hoare triple {23492#(<= 1 main_~j~0)} #t~post9 := ~i~0; {23492#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:25,362 INFO L280 TraceCheckUtils]: 58: Hoare triple {23492#(<= 1 main_~j~0)} ~i~0 := 1 + #t~post9; {23492#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:25,363 INFO L280 TraceCheckUtils]: 59: Hoare triple {23492#(<= 1 main_~j~0)} havoc #t~post9; {23492#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:25,363 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 [2020-07-18 06:36:25,364 INFO L280 TraceCheckUtils]: 61: Hoare triple {23492#(<= 1 main_~j~0)} assume 1 + ~i~0 < ~len~0; {23492#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:25,364 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 [2020-07-18 06:36:25,364 INFO L280 TraceCheckUtils]: 63: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-18 06:36:25,364 INFO L280 TraceCheckUtils]: 64: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-18 06:36:25,365 INFO L280 TraceCheckUtils]: 65: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-18 06:36:25,365 INFO L275 TraceCheckUtils]: 66: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #123#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:25,366 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 [2020-07-18 06:36:25,366 INFO L280 TraceCheckUtils]: 68: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-18 06:36:25,366 INFO L280 TraceCheckUtils]: 69: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-18 06:36:25,366 INFO L280 TraceCheckUtils]: 70: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-18 06:36:25,367 INFO L275 TraceCheckUtils]: 71: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #125#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:25,367 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 [2020-07-18 06:36:25,368 INFO L280 TraceCheckUtils]: 73: Hoare triple {23492#(<= 1 main_~j~0)} assume !(0 != #t~nondet2); {23492#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:25,368 INFO L280 TraceCheckUtils]: 74: Hoare triple {23492#(<= 1 main_~j~0)} havoc #t~nondet2; {23492#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:25,368 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 [2020-07-18 06:36:25,369 INFO L280 TraceCheckUtils]: 76: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-18 06:36:25,369 INFO L280 TraceCheckUtils]: 77: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-18 06:36:25,369 INFO L280 TraceCheckUtils]: 78: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-18 06:36:25,371 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #127#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:25,371 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 [2020-07-18 06:36:25,371 INFO L280 TraceCheckUtils]: 81: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-18 06:36:25,371 INFO L280 TraceCheckUtils]: 82: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-18 06:36:25,371 INFO L280 TraceCheckUtils]: 83: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-18 06:36:25,372 INFO L275 TraceCheckUtils]: 84: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #129#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:25,372 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 [2020-07-18 06:36:25,373 INFO L280 TraceCheckUtils]: 86: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-18 06:36:25,373 INFO L280 TraceCheckUtils]: 87: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-18 06:36:25,373 INFO L280 TraceCheckUtils]: 88: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-18 06:36:25,374 INFO L275 TraceCheckUtils]: 89: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #131#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:25,374 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 [2020-07-18 06:36:25,374 INFO L280 TraceCheckUtils]: 91: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-18 06:36:25,374 INFO L280 TraceCheckUtils]: 92: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-18 06:36:25,374 INFO L280 TraceCheckUtils]: 93: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-18 06:36:25,375 INFO L275 TraceCheckUtils]: 94: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #133#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:25,376 INFO L280 TraceCheckUtils]: 95: Hoare triple {23492#(<= 1 main_~j~0)} #t~post3 := ~j~0; {23517#(<= 1 |main_#t~post3|)} is VALID [2020-07-18 06:36:25,376 INFO L280 TraceCheckUtils]: 96: Hoare triple {23517#(<= 1 |main_#t~post3|)} ~j~0 := 1 + #t~post3; {23518#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:25,377 INFO L280 TraceCheckUtils]: 97: Hoare triple {23518#(<= 2 main_~j~0)} havoc #t~post3; {23518#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:25,377 INFO L280 TraceCheckUtils]: 98: Hoare triple {23518#(<= 2 main_~j~0)} #t~post4 := ~i~0; {23518#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:25,378 INFO L280 TraceCheckUtils]: 99: Hoare triple {23518#(<= 2 main_~j~0)} ~i~0 := 1 + #t~post4; {23518#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:25,379 INFO L280 TraceCheckUtils]: 100: Hoare triple {23518#(<= 2 main_~j~0)} havoc #t~post4; {23518#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:25,379 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 [2020-07-18 06:36:25,379 INFO L280 TraceCheckUtils]: 102: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-18 06:36:25,379 INFO L280 TraceCheckUtils]: 103: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-18 06:36:25,379 INFO L280 TraceCheckUtils]: 104: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-18 06:36:25,381 INFO L275 TraceCheckUtils]: 105: Hoare quadruple {23462#true} {23518#(<= 2 main_~j~0)} #135#return; {23518#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:25,381 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 [2020-07-18 06:36:25,381 INFO L280 TraceCheckUtils]: 107: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-18 06:36:25,381 INFO L280 TraceCheckUtils]: 108: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-18 06:36:25,382 INFO L280 TraceCheckUtils]: 109: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-18 06:36:25,384 INFO L275 TraceCheckUtils]: 110: Hoare quadruple {23462#true} {23518#(<= 2 main_~j~0)} #137#return; {23518#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:25,384 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 [2020-07-18 06:36:25,384 INFO L280 TraceCheckUtils]: 112: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-18 06:36:25,384 INFO L280 TraceCheckUtils]: 113: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-18 06:36:25,385 INFO L280 TraceCheckUtils]: 114: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-18 06:36:25,386 INFO L275 TraceCheckUtils]: 115: Hoare quadruple {23462#true} {23518#(<= 2 main_~j~0)} #139#return; {23518#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:25,386 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 [2020-07-18 06:36:25,386 INFO L280 TraceCheckUtils]: 117: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-18 06:36:25,386 INFO L280 TraceCheckUtils]: 118: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-18 06:36:25,386 INFO L280 TraceCheckUtils]: 119: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-18 06:36:25,387 INFO L275 TraceCheckUtils]: 120: Hoare quadruple {23462#true} {23518#(<= 2 main_~j~0)} #141#return; {23518#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:25,388 INFO L280 TraceCheckUtils]: 121: Hoare triple {23518#(<= 2 main_~j~0)} #t~post5 := ~j~0; {23535#(<= 2 |main_#t~post5|)} is VALID [2020-07-18 06:36:25,389 INFO L280 TraceCheckUtils]: 122: Hoare triple {23535#(<= 2 |main_#t~post5|)} ~j~0 := 1 + #t~post5; {23536#(<= 3 main_~j~0)} is VALID [2020-07-18 06:36:25,389 INFO L280 TraceCheckUtils]: 123: Hoare triple {23536#(<= 3 main_~j~0)} havoc #t~post5; {23536#(<= 3 main_~j~0)} is VALID [2020-07-18 06:36:25,390 INFO L280 TraceCheckUtils]: 124: Hoare triple {23536#(<= 3 main_~j~0)} #t~post6 := ~i~0; {23536#(<= 3 main_~j~0)} is VALID [2020-07-18 06:36:25,390 INFO L280 TraceCheckUtils]: 125: Hoare triple {23536#(<= 3 main_~j~0)} ~i~0 := 1 + #t~post6; {23536#(<= 3 main_~j~0)} is VALID [2020-07-18 06:36:25,391 INFO L280 TraceCheckUtils]: 126: Hoare triple {23536#(<= 3 main_~j~0)} havoc #t~post6; {23536#(<= 3 main_~j~0)} is VALID [2020-07-18 06:36:25,391 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 [2020-07-18 06:36:25,391 INFO L280 TraceCheckUtils]: 128: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-18 06:36:25,391 INFO L280 TraceCheckUtils]: 129: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-18 06:36:25,392 INFO L280 TraceCheckUtils]: 130: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-18 06:36:25,392 INFO L275 TraceCheckUtils]: 131: Hoare quadruple {23462#true} {23536#(<= 3 main_~j~0)} #143#return; {23536#(<= 3 main_~j~0)} is VALID [2020-07-18 06:36:25,393 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 [2020-07-18 06:36:25,394 INFO L280 TraceCheckUtils]: 133: Hoare triple {23541#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {23542#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-18 06:36:25,394 INFO L280 TraceCheckUtils]: 134: Hoare triple {23542#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {23463#false} is VALID [2020-07-18 06:36:25,395 INFO L280 TraceCheckUtils]: 135: Hoare triple {23463#false} assume !false; {23463#false} is VALID [2020-07-18 06:36:25,408 INFO L134 CoverageAnalysis]: Checked inductivity of 584 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2020-07-18 06:36:25,408 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1610739718] [2020-07-18 06:36:25,409 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 06:36:25,409 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-18 06:36:25,409 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919236464] [2020-07-18 06:36:25,411 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 136 [2020-07-18 06:36:25,411 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 06:36:25,411 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states. [2020-07-18 06:36:25,504 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 88 edges. 88 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:36:25,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-18 06:36:25,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 06:36:25,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-18 06:36:25,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-07-18 06:36:25,506 INFO L87 Difference]: Start difference. First operand 398 states and 529 transitions. Second operand 11 states. [2020-07-18 06:36:28,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:36:28,439 INFO L93 Difference]: Finished difference Result 432 states and 566 transitions. [2020-07-18 06:36:28,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-18 06:36:28,440 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 136 [2020-07-18 06:36:28,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 06:36:28,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-18 06:36:28,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 189 transitions. [2020-07-18 06:36:28,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-18 06:36:28,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 189 transitions. [2020-07-18 06:36:28,447 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 15 states and 189 transitions. [2020-07-18 06:36:28,668 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 189 edges. 189 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:36:28,681 INFO L225 Difference]: With dead ends: 432 [2020-07-18 06:36:28,681 INFO L226 Difference]: Without dead ends: 430 [2020-07-18 06:36:28,682 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 [2020-07-18 06:36:28,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2020-07-18 06:36:29,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 410. [2020-07-18 06:36:29,658 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 06:36:29,658 INFO L82 GeneralOperation]: Start isEquivalent. First operand 430 states. Second operand 410 states. [2020-07-18 06:36:29,658 INFO L74 IsIncluded]: Start isIncluded. First operand 430 states. Second operand 410 states. [2020-07-18 06:36:29,658 INFO L87 Difference]: Start difference. First operand 430 states. Second operand 410 states. [2020-07-18 06:36:29,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:36:29,670 INFO L93 Difference]: Finished difference Result 430 states and 564 transitions. [2020-07-18 06:36:29,670 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 564 transitions. [2020-07-18 06:36:29,671 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:36:29,671 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:36:29,671 INFO L74 IsIncluded]: Start isIncluded. First operand 410 states. Second operand 430 states. [2020-07-18 06:36:29,672 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 430 states. [2020-07-18 06:36:29,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:36:29,688 INFO L93 Difference]: Finished difference Result 430 states and 564 transitions. [2020-07-18 06:36:29,689 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 564 transitions. [2020-07-18 06:36:29,690 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:36:29,690 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:36:29,690 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 06:36:29,690 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 06:36:29,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 410 states. [2020-07-18 06:36:29,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 542 transitions. [2020-07-18 06:36:29,703 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 542 transitions. Word has length 136 [2020-07-18 06:36:29,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 06:36:29,704 INFO L479 AbstractCegarLoop]: Abstraction has 410 states and 542 transitions. [2020-07-18 06:36:29,704 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-18 06:36:29,704 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 410 states and 542 transitions. [2020-07-18 06:36:30,641 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 542 edges. 542 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:36:30,641 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 542 transitions. [2020-07-18 06:36:30,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-07-18 06:36:30,643 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 06:36:30,643 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] [2020-07-18 06:36:30,643 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-07-18 06:36:30,644 INFO L427 AbstractCegarLoop]: === Iteration 20 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 06:36:30,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 06:36:30,644 INFO L82 PathProgramCache]: Analyzing trace with hash 362381850, now seen corresponding path program 1 times [2020-07-18 06:36:30,644 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 06:36:30,644 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [351359771] [2020-07-18 06:36:30,644 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 06:36:30,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:30,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:30,790 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-18 06:36:30,791 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {26103#true} {26103#true} #119#return; {26103#true} is VALID [2020-07-18 06:36:30,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:30,794 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-18 06:36:30,794 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-18 06:36:30,794 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-18 06:36:30,795 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #123#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:30,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:30,798 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-18 06:36:30,798 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-18 06:36:30,798 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-18 06:36:30,803 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #125#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:30,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:30,808 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-18 06:36:30,808 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-18 06:36:30,808 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-18 06:36:30,809 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #147#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:30,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:30,815 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-18 06:36:30,815 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-18 06:36:30,815 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-18 06:36:30,817 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #149#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:30,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:30,820 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-18 06:36:30,820 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-18 06:36:30,821 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-18 06:36:30,821 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #151#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:30,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:30,825 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-18 06:36:30,825 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-18 06:36:30,825 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-18 06:36:30,826 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #153#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:30,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:30,829 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-18 06:36:30,829 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-18 06:36:30,829 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-18 06:36:30,830 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #123#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:30,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:30,834 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-18 06:36:30,834 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-18 06:36:30,835 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-18 06:36:30,835 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #125#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:30,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:30,839 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-18 06:36:30,839 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-18 06:36:30,840 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-18 06:36:30,840 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #127#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:30,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:30,843 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-18 06:36:30,844 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-18 06:36:30,844 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-18 06:36:30,844 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #129#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:30,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:30,847 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-18 06:36:30,848 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-18 06:36:30,848 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-18 06:36:30,849 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #131#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:30,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:30,857 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-18 06:36:30,857 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-18 06:36:30,858 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-18 06:36:30,858 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #133#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:30,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:30,865 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-18 06:36:30,865 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-18 06:36:30,866 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-18 06:36:30,866 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26159#(<= 2 main_~i~0)} #135#return; {26159#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:30,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:30,869 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-18 06:36:30,869 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-18 06:36:30,870 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-18 06:36:30,870 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26159#(<= 2 main_~i~0)} #137#return; {26159#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:30,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:30,873 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-18 06:36:30,873 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-18 06:36:30,874 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-18 06:36:30,874 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26159#(<= 2 main_~i~0)} #139#return; {26159#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:30,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:30,878 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-18 06:36:30,878 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-18 06:36:30,879 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-18 06:36:30,879 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26159#(<= 2 main_~i~0)} #141#return; {26159#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:30,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:30,883 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-18 06:36:30,883 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-18 06:36:30,883 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-18 06:36:30,884 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26177#(<= 3 main_~i~0)} #143#return; {26177#(<= 3 main_~i~0)} is VALID [2020-07-18 06:36:30,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:30,887 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-18 06:36:30,888 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-18 06:36:30,888 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-18 06:36:30,889 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26177#(<= 3 main_~i~0)} #145#return; {26177#(<= 3 main_~i~0)} is VALID [2020-07-18 06:36:30,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:30,892 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-18 06:36:30,892 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-18 06:36:30,892 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-18 06:36:30,893 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26177#(<= 3 main_~i~0)} #123#return; {26177#(<= 3 main_~i~0)} is VALID [2020-07-18 06:36:30,893 INFO L263 TraceCheckUtils]: 0: Hoare triple {26103#true} call ULTIMATE.init(); {26103#true} is VALID [2020-07-18 06:36:30,893 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-18 06:36:30,894 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {26103#true} {26103#true} #119#return; {26103#true} is VALID [2020-07-18 06:36:30,894 INFO L263 TraceCheckUtils]: 3: Hoare triple {26103#true} call #t~ret10 := main(); {26103#true} is VALID [2020-07-18 06:36:30,894 INFO L280 TraceCheckUtils]: 4: Hoare triple {26103#true} havoc ~len~0; {26103#true} is VALID [2020-07-18 06:36:30,894 INFO L280 TraceCheckUtils]: 5: Hoare triple {26103#true} havoc ~i~0; {26103#true} is VALID [2020-07-18 06:36:30,894 INFO L280 TraceCheckUtils]: 6: Hoare triple {26103#true} havoc ~j~0; {26103#true} is VALID [2020-07-18 06:36:30,895 INFO L280 TraceCheckUtils]: 7: Hoare triple {26103#true} havoc ~bufsize~0; {26103#true} is VALID [2020-07-18 06:36:30,895 INFO L280 TraceCheckUtils]: 8: Hoare triple {26103#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {26103#true} is VALID [2020-07-18 06:36:30,895 INFO L280 TraceCheckUtils]: 9: Hoare triple {26103#true} ~bufsize~0 := #t~nondet0; {26103#true} is VALID [2020-07-18 06:36:30,895 INFO L280 TraceCheckUtils]: 10: Hoare triple {26103#true} havoc #t~nondet0; {26103#true} is VALID [2020-07-18 06:36:30,895 INFO L280 TraceCheckUtils]: 11: Hoare triple {26103#true} assume !(~bufsize~0 < 0); {26103#true} is VALID [2020-07-18 06:36:30,895 INFO L280 TraceCheckUtils]: 12: Hoare triple {26103#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {26103#true} is VALID [2020-07-18 06:36:30,896 INFO L280 TraceCheckUtils]: 13: Hoare triple {26103#true} ~len~0 := #t~nondet1; {26103#true} is VALID [2020-07-18 06:36:30,896 INFO L280 TraceCheckUtils]: 14: Hoare triple {26103#true} havoc #t~nondet1; {26103#true} is VALID [2020-07-18 06:36:30,896 INFO L280 TraceCheckUtils]: 15: Hoare triple {26103#true} ~limit~0 := ~bufsize~0 - 4; {26103#true} is VALID [2020-07-18 06:36:30,897 INFO L280 TraceCheckUtils]: 16: Hoare triple {26103#true} ~i~0 := 0; {26107#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:30,897 INFO L280 TraceCheckUtils]: 17: Hoare triple {26107#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0); {26107#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:30,898 INFO L280 TraceCheckUtils]: 18: Hoare triple {26107#(<= 0 main_~i~0)} ~j~0 := 0; {26107#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:30,898 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 [2020-07-18 06:36:30,899 INFO L280 TraceCheckUtils]: 20: Hoare triple {26107#(<= 0 main_~i~0)} assume 1 + ~i~0 < ~len~0; {26107#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:30,899 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 [2020-07-18 06:36:30,899 INFO L280 TraceCheckUtils]: 22: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-18 06:36:30,899 INFO L280 TraceCheckUtils]: 23: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-18 06:36:30,899 INFO L280 TraceCheckUtils]: 24: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-18 06:36:30,900 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #123#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:30,900 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 [2020-07-18 06:36:30,900 INFO L280 TraceCheckUtils]: 27: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-18 06:36:30,901 INFO L280 TraceCheckUtils]: 28: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-18 06:36:30,901 INFO L280 TraceCheckUtils]: 29: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-18 06:36:30,901 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #125#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:30,902 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 [2020-07-18 06:36:30,902 INFO L280 TraceCheckUtils]: 32: Hoare triple {26107#(<= 0 main_~i~0)} assume 0 != #t~nondet2; {26107#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:30,903 INFO L280 TraceCheckUtils]: 33: Hoare triple {26107#(<= 0 main_~i~0)} havoc #t~nondet2; {26107#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:30,903 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 [2020-07-18 06:36:30,903 INFO L280 TraceCheckUtils]: 35: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-18 06:36:30,903 INFO L280 TraceCheckUtils]: 36: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-18 06:36:30,904 INFO L280 TraceCheckUtils]: 37: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-18 06:36:30,905 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #147#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:30,905 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 [2020-07-18 06:36:30,905 INFO L280 TraceCheckUtils]: 40: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-18 06:36:30,905 INFO L280 TraceCheckUtils]: 41: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-18 06:36:30,905 INFO L280 TraceCheckUtils]: 42: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-18 06:36:30,906 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #149#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:30,906 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 [2020-07-18 06:36:30,906 INFO L280 TraceCheckUtils]: 45: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-18 06:36:30,907 INFO L280 TraceCheckUtils]: 46: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-18 06:36:30,907 INFO L280 TraceCheckUtils]: 47: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-18 06:36:30,907 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #151#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:30,908 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 [2020-07-18 06:36:30,908 INFO L280 TraceCheckUtils]: 50: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-18 06:36:30,908 INFO L280 TraceCheckUtils]: 51: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-18 06:36:30,908 INFO L280 TraceCheckUtils]: 52: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-18 06:36:30,909 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #153#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:30,909 INFO L280 TraceCheckUtils]: 54: Hoare triple {26107#(<= 0 main_~i~0)} #t~post8 := ~j~0; {26107#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:30,910 INFO L280 TraceCheckUtils]: 55: Hoare triple {26107#(<= 0 main_~i~0)} ~j~0 := 1 + #t~post8; {26107#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:30,910 INFO L280 TraceCheckUtils]: 56: Hoare triple {26107#(<= 0 main_~i~0)} havoc #t~post8; {26107#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:30,911 INFO L280 TraceCheckUtils]: 57: Hoare triple {26107#(<= 0 main_~i~0)} #t~post9 := ~i~0; {26132#(<= 0 |main_#t~post9|)} is VALID [2020-07-18 06:36:30,912 INFO L280 TraceCheckUtils]: 58: Hoare triple {26132#(<= 0 |main_#t~post9|)} ~i~0 := 1 + #t~post9; {26133#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:30,913 INFO L280 TraceCheckUtils]: 59: Hoare triple {26133#(<= 1 main_~i~0)} havoc #t~post9; {26133#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:30,914 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 [2020-07-18 06:36:30,914 INFO L280 TraceCheckUtils]: 61: Hoare triple {26133#(<= 1 main_~i~0)} assume 1 + ~i~0 < ~len~0; {26133#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:30,914 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 [2020-07-18 06:36:30,915 INFO L280 TraceCheckUtils]: 63: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-18 06:36:30,915 INFO L280 TraceCheckUtils]: 64: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-18 06:36:30,915 INFO L280 TraceCheckUtils]: 65: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-18 06:36:30,917 INFO L275 TraceCheckUtils]: 66: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #123#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:30,917 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 [2020-07-18 06:36:30,917 INFO L280 TraceCheckUtils]: 68: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-18 06:36:30,917 INFO L280 TraceCheckUtils]: 69: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-18 06:36:30,917 INFO L280 TraceCheckUtils]: 70: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-18 06:36:30,918 INFO L275 TraceCheckUtils]: 71: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #125#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:30,919 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 [2020-07-18 06:36:30,919 INFO L280 TraceCheckUtils]: 73: Hoare triple {26133#(<= 1 main_~i~0)} assume !(0 != #t~nondet2); {26133#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:30,920 INFO L280 TraceCheckUtils]: 74: Hoare triple {26133#(<= 1 main_~i~0)} havoc #t~nondet2; {26133#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:30,920 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 [2020-07-18 06:36:30,920 INFO L280 TraceCheckUtils]: 76: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-18 06:36:30,920 INFO L280 TraceCheckUtils]: 77: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-18 06:36:30,920 INFO L280 TraceCheckUtils]: 78: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-18 06:36:30,921 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #127#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:30,921 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 [2020-07-18 06:36:30,921 INFO L280 TraceCheckUtils]: 81: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-18 06:36:30,922 INFO L280 TraceCheckUtils]: 82: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-18 06:36:30,922 INFO L280 TraceCheckUtils]: 83: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-18 06:36:30,922 INFO L275 TraceCheckUtils]: 84: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #129#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:30,923 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 [2020-07-18 06:36:30,923 INFO L280 TraceCheckUtils]: 86: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-18 06:36:30,923 INFO L280 TraceCheckUtils]: 87: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-18 06:36:30,923 INFO L280 TraceCheckUtils]: 88: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-18 06:36:30,924 INFO L275 TraceCheckUtils]: 89: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #131#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:30,924 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 [2020-07-18 06:36:30,924 INFO L280 TraceCheckUtils]: 91: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-18 06:36:30,924 INFO L280 TraceCheckUtils]: 92: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-18 06:36:30,925 INFO L280 TraceCheckUtils]: 93: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-18 06:36:30,925 INFO L275 TraceCheckUtils]: 94: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #133#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:30,926 INFO L280 TraceCheckUtils]: 95: Hoare triple {26133#(<= 1 main_~i~0)} #t~post3 := ~j~0; {26133#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:30,926 INFO L280 TraceCheckUtils]: 96: Hoare triple {26133#(<= 1 main_~i~0)} ~j~0 := 1 + #t~post3; {26133#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:30,927 INFO L280 TraceCheckUtils]: 97: Hoare triple {26133#(<= 1 main_~i~0)} havoc #t~post3; {26133#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:30,927 INFO L280 TraceCheckUtils]: 98: Hoare triple {26133#(<= 1 main_~i~0)} #t~post4 := ~i~0; {26158#(<= 1 |main_#t~post4|)} is VALID [2020-07-18 06:36:30,928 INFO L280 TraceCheckUtils]: 99: Hoare triple {26158#(<= 1 |main_#t~post4|)} ~i~0 := 1 + #t~post4; {26159#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:30,929 INFO L280 TraceCheckUtils]: 100: Hoare triple {26159#(<= 2 main_~i~0)} havoc #t~post4; {26159#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:30,929 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 [2020-07-18 06:36:30,929 INFO L280 TraceCheckUtils]: 102: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-18 06:36:30,929 INFO L280 TraceCheckUtils]: 103: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-18 06:36:30,929 INFO L280 TraceCheckUtils]: 104: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-18 06:36:30,930 INFO L275 TraceCheckUtils]: 105: Hoare quadruple {26103#true} {26159#(<= 2 main_~i~0)} #135#return; {26159#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:30,930 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 [2020-07-18 06:36:30,930 INFO L280 TraceCheckUtils]: 107: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-18 06:36:30,931 INFO L280 TraceCheckUtils]: 108: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-18 06:36:30,931 INFO L280 TraceCheckUtils]: 109: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-18 06:36:30,931 INFO L275 TraceCheckUtils]: 110: Hoare quadruple {26103#true} {26159#(<= 2 main_~i~0)} #137#return; {26159#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:30,932 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 [2020-07-18 06:36:30,932 INFO L280 TraceCheckUtils]: 112: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-18 06:36:30,932 INFO L280 TraceCheckUtils]: 113: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-18 06:36:30,932 INFO L280 TraceCheckUtils]: 114: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-18 06:36:30,933 INFO L275 TraceCheckUtils]: 115: Hoare quadruple {26103#true} {26159#(<= 2 main_~i~0)} #139#return; {26159#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:30,933 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 [2020-07-18 06:36:30,933 INFO L280 TraceCheckUtils]: 117: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-18 06:36:30,934 INFO L280 TraceCheckUtils]: 118: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-18 06:36:30,934 INFO L280 TraceCheckUtils]: 119: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-18 06:36:30,935 INFO L275 TraceCheckUtils]: 120: Hoare quadruple {26103#true} {26159#(<= 2 main_~i~0)} #141#return; {26159#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:30,935 INFO L280 TraceCheckUtils]: 121: Hoare triple {26159#(<= 2 main_~i~0)} #t~post5 := ~j~0; {26159#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:30,935 INFO L280 TraceCheckUtils]: 122: Hoare triple {26159#(<= 2 main_~i~0)} ~j~0 := 1 + #t~post5; {26159#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:30,936 INFO L280 TraceCheckUtils]: 123: Hoare triple {26159#(<= 2 main_~i~0)} havoc #t~post5; {26159#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:30,937 INFO L280 TraceCheckUtils]: 124: Hoare triple {26159#(<= 2 main_~i~0)} #t~post6 := ~i~0; {26176#(<= 2 |main_#t~post6|)} is VALID [2020-07-18 06:36:30,937 INFO L280 TraceCheckUtils]: 125: Hoare triple {26176#(<= 2 |main_#t~post6|)} ~i~0 := 1 + #t~post6; {26177#(<= 3 main_~i~0)} is VALID [2020-07-18 06:36:30,938 INFO L280 TraceCheckUtils]: 126: Hoare triple {26177#(<= 3 main_~i~0)} havoc #t~post6; {26177#(<= 3 main_~i~0)} is VALID [2020-07-18 06:36:30,938 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 [2020-07-18 06:36:30,938 INFO L280 TraceCheckUtils]: 128: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-18 06:36:30,938 INFO L280 TraceCheckUtils]: 129: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-18 06:36:30,939 INFO L280 TraceCheckUtils]: 130: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-18 06:36:30,940 INFO L275 TraceCheckUtils]: 131: Hoare quadruple {26103#true} {26177#(<= 3 main_~i~0)} #143#return; {26177#(<= 3 main_~i~0)} is VALID [2020-07-18 06:36:30,940 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 [2020-07-18 06:36:30,940 INFO L280 TraceCheckUtils]: 133: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-18 06:36:30,940 INFO L280 TraceCheckUtils]: 134: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-18 06:36:30,940 INFO L280 TraceCheckUtils]: 135: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-18 06:36:30,941 INFO L275 TraceCheckUtils]: 136: Hoare quadruple {26103#true} {26177#(<= 3 main_~i~0)} #145#return; {26177#(<= 3 main_~i~0)} is VALID [2020-07-18 06:36:30,941 INFO L280 TraceCheckUtils]: 137: Hoare triple {26177#(<= 3 main_~i~0)} #t~post7 := ~j~0; {26177#(<= 3 main_~i~0)} is VALID [2020-07-18 06:36:30,942 INFO L280 TraceCheckUtils]: 138: Hoare triple {26177#(<= 3 main_~i~0)} ~j~0 := 1 + #t~post7; {26177#(<= 3 main_~i~0)} is VALID [2020-07-18 06:36:30,942 INFO L280 TraceCheckUtils]: 139: Hoare triple {26177#(<= 3 main_~i~0)} havoc #t~post7; {26177#(<= 3 main_~i~0)} is VALID [2020-07-18 06:36:30,943 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 [2020-07-18 06:36:30,943 INFO L280 TraceCheckUtils]: 141: Hoare triple {26177#(<= 3 main_~i~0)} assume 1 + ~i~0 < ~len~0; {26177#(<= 3 main_~i~0)} is VALID [2020-07-18 06:36:30,944 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 [2020-07-18 06:36:30,944 INFO L280 TraceCheckUtils]: 143: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-18 06:36:30,944 INFO L280 TraceCheckUtils]: 144: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-18 06:36:30,944 INFO L280 TraceCheckUtils]: 145: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-18 06:36:30,945 INFO L275 TraceCheckUtils]: 146: Hoare quadruple {26103#true} {26177#(<= 3 main_~i~0)} #123#return; {26177#(<= 3 main_~i~0)} is VALID [2020-07-18 06:36:30,946 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 [2020-07-18 06:36:30,947 INFO L280 TraceCheckUtils]: 148: Hoare triple {26190#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {26191#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-18 06:36:30,947 INFO L280 TraceCheckUtils]: 149: Hoare triple {26191#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {26104#false} is VALID [2020-07-18 06:36:30,947 INFO L280 TraceCheckUtils]: 150: Hoare triple {26104#false} assume !false; {26104#false} is VALID [2020-07-18 06:36:30,963 INFO L134 CoverageAnalysis]: Checked inductivity of 736 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2020-07-18 06:36:30,964 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [351359771] [2020-07-18 06:36:30,964 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 06:36:30,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-18 06:36:30,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485988273] [2020-07-18 06:36:30,965 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 151 [2020-07-18 06:36:30,965 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 06:36:30,965 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states. [2020-07-18 06:36:31,071 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 97 edges. 97 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:36:31,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-18 06:36:31,072 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 06:36:31,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-18 06:36:31,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-07-18 06:36:31,072 INFO L87 Difference]: Start difference. First operand 410 states and 542 transitions. Second operand 11 states. [2020-07-18 06:36:34,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:36:34,664 INFO L93 Difference]: Finished difference Result 645 states and 888 transitions. [2020-07-18 06:36:34,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-18 06:36:34,664 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 151 [2020-07-18 06:36:34,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 06:36:34,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-18 06:36:34,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 236 transitions. [2020-07-18 06:36:34,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-18 06:36:34,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 236 transitions. [2020-07-18 06:36:34,671 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 17 states and 236 transitions. [2020-07-18 06:36:34,977 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 236 edges. 236 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:36:34,999 INFO L225 Difference]: With dead ends: 645 [2020-07-18 06:36:34,999 INFO L226 Difference]: Without dead ends: 639 [2020-07-18 06:36:34,999 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 [2020-07-18 06:36:35,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2020-07-18 06:36:36,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 572. [2020-07-18 06:36:36,522 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 06:36:36,523 INFO L82 GeneralOperation]: Start isEquivalent. First operand 639 states. Second operand 572 states. [2020-07-18 06:36:36,523 INFO L74 IsIncluded]: Start isIncluded. First operand 639 states. Second operand 572 states. [2020-07-18 06:36:36,523 INFO L87 Difference]: Start difference. First operand 639 states. Second operand 572 states. [2020-07-18 06:36:36,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:36:36,546 INFO L93 Difference]: Finished difference Result 639 states and 876 transitions. [2020-07-18 06:36:36,546 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 876 transitions. [2020-07-18 06:36:36,547 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:36:36,548 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:36:36,548 INFO L74 IsIncluded]: Start isIncluded. First operand 572 states. Second operand 639 states. [2020-07-18 06:36:36,548 INFO L87 Difference]: Start difference. First operand 572 states. Second operand 639 states. [2020-07-18 06:36:36,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:36:36,574 INFO L93 Difference]: Finished difference Result 639 states and 876 transitions. [2020-07-18 06:36:36,574 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 876 transitions. [2020-07-18 06:36:36,576 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:36:36,576 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:36:36,576 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 06:36:36,576 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 06:36:36,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 572 states. [2020-07-18 06:36:36,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 778 transitions. [2020-07-18 06:36:36,592 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 778 transitions. Word has length 151 [2020-07-18 06:36:36,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 06:36:36,592 INFO L479 AbstractCegarLoop]: Abstraction has 572 states and 778 transitions. [2020-07-18 06:36:36,592 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-18 06:36:36,592 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 572 states and 778 transitions. [2020-07-18 06:36:37,978 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 778 edges. 778 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:36:37,978 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 778 transitions. [2020-07-18 06:36:37,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-07-18 06:36:37,980 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 06:36:37,981 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] [2020-07-18 06:36:37,981 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-07-18 06:36:37,981 INFO L427 AbstractCegarLoop]: === Iteration 21 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 06:36:37,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 06:36:37,982 INFO L82 PathProgramCache]: Analyzing trace with hash -978309232, now seen corresponding path program 2 times [2020-07-18 06:36:37,982 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 06:36:37,982 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1159524029] [2020-07-18 06:36:37,982 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 06:36:37,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:38,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:38,117 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-18 06:36:38,117 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {29924#true} {29924#true} #119#return; {29924#true} is VALID [2020-07-18 06:36:38,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:38,125 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-18 06:36:38,125 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-18 06:36:38,126 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-18 06:36:38,126 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #123#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:38,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:38,129 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-18 06:36:38,129 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-18 06:36:38,129 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-18 06:36:38,130 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #125#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:38,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:38,133 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-18 06:36:38,133 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-18 06:36:38,133 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-18 06:36:38,134 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #127#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:38,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:38,137 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-18 06:36:38,137 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-18 06:36:38,137 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-18 06:36:38,138 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #129#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:38,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:38,141 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-18 06:36:38,141 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-18 06:36:38,141 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-18 06:36:38,142 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #131#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:38,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:38,145 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-18 06:36:38,145 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-18 06:36:38,145 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-18 06:36:38,146 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #133#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:38,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:38,149 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-18 06:36:38,149 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-18 06:36:38,149 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-18 06:36:38,150 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29954#(<= 1 main_~i~0)} #135#return; {29954#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:38,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:38,153 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-18 06:36:38,153 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-18 06:36:38,153 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-18 06:36:38,154 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29954#(<= 1 main_~i~0)} #137#return; {29954#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:38,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:38,158 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-18 06:36:38,158 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-18 06:36:38,159 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-18 06:36:38,159 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29954#(<= 1 main_~i~0)} #139#return; {29954#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:38,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:38,167 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-18 06:36:38,167 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-18 06:36:38,168 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-18 06:36:38,168 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29954#(<= 1 main_~i~0)} #141#return; {29954#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:38,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:38,172 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-18 06:36:38,172 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-18 06:36:38,172 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-18 06:36:38,173 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #143#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:38,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:38,176 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-18 06:36:38,176 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-18 06:36:38,176 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-18 06:36:38,177 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #145#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:38,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:38,180 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-18 06:36:38,180 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-18 06:36:38,181 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-18 06:36:38,181 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #123#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:38,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:38,184 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-18 06:36:38,185 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-18 06:36:38,185 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-18 06:36:38,185 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #125#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:38,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:38,190 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-18 06:36:38,191 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-18 06:36:38,191 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-18 06:36:38,191 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #147#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:38,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:38,194 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-18 06:36:38,195 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-18 06:36:38,195 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-18 06:36:38,195 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #149#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:38,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:38,198 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-18 06:36:38,199 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-18 06:36:38,199 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-18 06:36:38,200 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #151#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:38,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:38,204 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-18 06:36:38,205 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-18 06:36:38,205 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-18 06:36:38,206 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #153#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:38,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:38,210 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-18 06:36:38,210 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-18 06:36:38,211 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-18 06:36:38,212 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {30006#(<= 3 main_~i~0)} #123#return; {30006#(<= 3 main_~i~0)} is VALID [2020-07-18 06:36:38,212 INFO L263 TraceCheckUtils]: 0: Hoare triple {29924#true} call ULTIMATE.init(); {29924#true} is VALID [2020-07-18 06:36:38,212 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-18 06:36:38,212 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {29924#true} {29924#true} #119#return; {29924#true} is VALID [2020-07-18 06:36:38,213 INFO L263 TraceCheckUtils]: 3: Hoare triple {29924#true} call #t~ret10 := main(); {29924#true} is VALID [2020-07-18 06:36:38,213 INFO L280 TraceCheckUtils]: 4: Hoare triple {29924#true} havoc ~len~0; {29924#true} is VALID [2020-07-18 06:36:38,213 INFO L280 TraceCheckUtils]: 5: Hoare triple {29924#true} havoc ~i~0; {29924#true} is VALID [2020-07-18 06:36:38,213 INFO L280 TraceCheckUtils]: 6: Hoare triple {29924#true} havoc ~j~0; {29924#true} is VALID [2020-07-18 06:36:38,214 INFO L280 TraceCheckUtils]: 7: Hoare triple {29924#true} havoc ~bufsize~0; {29924#true} is VALID [2020-07-18 06:36:38,214 INFO L280 TraceCheckUtils]: 8: Hoare triple {29924#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {29924#true} is VALID [2020-07-18 06:36:38,214 INFO L280 TraceCheckUtils]: 9: Hoare triple {29924#true} ~bufsize~0 := #t~nondet0; {29924#true} is VALID [2020-07-18 06:36:38,214 INFO L280 TraceCheckUtils]: 10: Hoare triple {29924#true} havoc #t~nondet0; {29924#true} is VALID [2020-07-18 06:36:38,215 INFO L280 TraceCheckUtils]: 11: Hoare triple {29924#true} assume !(~bufsize~0 < 0); {29924#true} is VALID [2020-07-18 06:36:38,215 INFO L280 TraceCheckUtils]: 12: Hoare triple {29924#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {29924#true} is VALID [2020-07-18 06:36:38,215 INFO L280 TraceCheckUtils]: 13: Hoare triple {29924#true} ~len~0 := #t~nondet1; {29924#true} is VALID [2020-07-18 06:36:38,215 INFO L280 TraceCheckUtils]: 14: Hoare triple {29924#true} havoc #t~nondet1; {29924#true} is VALID [2020-07-18 06:36:38,216 INFO L280 TraceCheckUtils]: 15: Hoare triple {29924#true} ~limit~0 := ~bufsize~0 - 4; {29924#true} is VALID [2020-07-18 06:36:38,217 INFO L280 TraceCheckUtils]: 16: Hoare triple {29924#true} ~i~0 := 0; {29928#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:38,217 INFO L280 TraceCheckUtils]: 17: Hoare triple {29928#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0); {29928#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:38,218 INFO L280 TraceCheckUtils]: 18: Hoare triple {29928#(<= 0 main_~i~0)} ~j~0 := 0; {29928#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:38,218 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 [2020-07-18 06:36:38,219 INFO L280 TraceCheckUtils]: 20: Hoare triple {29928#(<= 0 main_~i~0)} assume 1 + ~i~0 < ~len~0; {29928#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:38,219 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 [2020-07-18 06:36:38,219 INFO L280 TraceCheckUtils]: 22: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-18 06:36:38,219 INFO L280 TraceCheckUtils]: 23: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-18 06:36:38,219 INFO L280 TraceCheckUtils]: 24: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-18 06:36:38,220 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #123#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:38,220 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 [2020-07-18 06:36:38,220 INFO L280 TraceCheckUtils]: 27: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-18 06:36:38,220 INFO L280 TraceCheckUtils]: 28: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-18 06:36:38,221 INFO L280 TraceCheckUtils]: 29: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-18 06:36:38,222 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #125#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:38,222 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 [2020-07-18 06:36:38,223 INFO L280 TraceCheckUtils]: 32: Hoare triple {29928#(<= 0 main_~i~0)} assume !(0 != #t~nondet2); {29928#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:38,224 INFO L280 TraceCheckUtils]: 33: Hoare triple {29928#(<= 0 main_~i~0)} havoc #t~nondet2; {29928#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:38,224 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 [2020-07-18 06:36:38,224 INFO L280 TraceCheckUtils]: 35: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-18 06:36:38,224 INFO L280 TraceCheckUtils]: 36: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-18 06:36:38,225 INFO L280 TraceCheckUtils]: 37: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-18 06:36:38,225 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #127#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:38,226 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 [2020-07-18 06:36:38,226 INFO L280 TraceCheckUtils]: 40: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-18 06:36:38,226 INFO L280 TraceCheckUtils]: 41: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-18 06:36:38,226 INFO L280 TraceCheckUtils]: 42: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-18 06:36:38,228 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #129#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:38,228 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 [2020-07-18 06:36:38,228 INFO L280 TraceCheckUtils]: 45: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-18 06:36:38,228 INFO L280 TraceCheckUtils]: 46: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-18 06:36:38,229 INFO L280 TraceCheckUtils]: 47: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-18 06:36:38,230 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #131#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:38,230 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 [2020-07-18 06:36:38,230 INFO L280 TraceCheckUtils]: 50: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-18 06:36:38,230 INFO L280 TraceCheckUtils]: 51: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-18 06:36:38,230 INFO L280 TraceCheckUtils]: 52: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-18 06:36:38,231 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #133#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:38,231 INFO L280 TraceCheckUtils]: 54: Hoare triple {29928#(<= 0 main_~i~0)} #t~post3 := ~j~0; {29928#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:38,232 INFO L280 TraceCheckUtils]: 55: Hoare triple {29928#(<= 0 main_~i~0)} ~j~0 := 1 + #t~post3; {29928#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:38,233 INFO L280 TraceCheckUtils]: 56: Hoare triple {29928#(<= 0 main_~i~0)} havoc #t~post3; {29928#(<= 0 main_~i~0)} is VALID [2020-07-18 06:36:38,233 INFO L280 TraceCheckUtils]: 57: Hoare triple {29928#(<= 0 main_~i~0)} #t~post4 := ~i~0; {29953#(<= 0 |main_#t~post4|)} is VALID [2020-07-18 06:36:38,235 INFO L280 TraceCheckUtils]: 58: Hoare triple {29953#(<= 0 |main_#t~post4|)} ~i~0 := 1 + #t~post4; {29954#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:38,236 INFO L280 TraceCheckUtils]: 59: Hoare triple {29954#(<= 1 main_~i~0)} havoc #t~post4; {29954#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:38,236 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 [2020-07-18 06:36:38,236 INFO L280 TraceCheckUtils]: 61: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-18 06:36:38,236 INFO L280 TraceCheckUtils]: 62: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-18 06:36:38,237 INFO L280 TraceCheckUtils]: 63: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-18 06:36:38,237 INFO L275 TraceCheckUtils]: 64: Hoare quadruple {29924#true} {29954#(<= 1 main_~i~0)} #135#return; {29954#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:38,238 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 [2020-07-18 06:36:38,238 INFO L280 TraceCheckUtils]: 66: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-18 06:36:38,238 INFO L280 TraceCheckUtils]: 67: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-18 06:36:38,238 INFO L280 TraceCheckUtils]: 68: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-18 06:36:38,239 INFO L275 TraceCheckUtils]: 69: Hoare quadruple {29924#true} {29954#(<= 1 main_~i~0)} #137#return; {29954#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:38,239 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 [2020-07-18 06:36:38,240 INFO L280 TraceCheckUtils]: 71: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-18 06:36:38,240 INFO L280 TraceCheckUtils]: 72: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-18 06:36:38,240 INFO L280 TraceCheckUtils]: 73: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-18 06:36:38,241 INFO L275 TraceCheckUtils]: 74: Hoare quadruple {29924#true} {29954#(<= 1 main_~i~0)} #139#return; {29954#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:38,241 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 [2020-07-18 06:36:38,241 INFO L280 TraceCheckUtils]: 76: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-18 06:36:38,242 INFO L280 TraceCheckUtils]: 77: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-18 06:36:38,242 INFO L280 TraceCheckUtils]: 78: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-18 06:36:38,242 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {29924#true} {29954#(<= 1 main_~i~0)} #141#return; {29954#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:38,243 INFO L280 TraceCheckUtils]: 80: Hoare triple {29954#(<= 1 main_~i~0)} #t~post5 := ~j~0; {29954#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:38,243 INFO L280 TraceCheckUtils]: 81: Hoare triple {29954#(<= 1 main_~i~0)} ~j~0 := 1 + #t~post5; {29954#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:38,244 INFO L280 TraceCheckUtils]: 82: Hoare triple {29954#(<= 1 main_~i~0)} havoc #t~post5; {29954#(<= 1 main_~i~0)} is VALID [2020-07-18 06:36:38,244 INFO L280 TraceCheckUtils]: 83: Hoare triple {29954#(<= 1 main_~i~0)} #t~post6 := ~i~0; {29971#(<= 1 |main_#t~post6|)} is VALID [2020-07-18 06:36:38,245 INFO L280 TraceCheckUtils]: 84: Hoare triple {29971#(<= 1 |main_#t~post6|)} ~i~0 := 1 + #t~post6; {29972#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:38,246 INFO L280 TraceCheckUtils]: 85: Hoare triple {29972#(<= 2 main_~i~0)} havoc #t~post6; {29972#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:38,246 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 [2020-07-18 06:36:38,246 INFO L280 TraceCheckUtils]: 87: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-18 06:36:38,246 INFO L280 TraceCheckUtils]: 88: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-18 06:36:38,246 INFO L280 TraceCheckUtils]: 89: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-18 06:36:38,248 INFO L275 TraceCheckUtils]: 90: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #143#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:38,248 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 [2020-07-18 06:36:38,248 INFO L280 TraceCheckUtils]: 92: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-18 06:36:38,248 INFO L280 TraceCheckUtils]: 93: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-18 06:36:38,249 INFO L280 TraceCheckUtils]: 94: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-18 06:36:38,250 INFO L275 TraceCheckUtils]: 95: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #145#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:38,250 INFO L280 TraceCheckUtils]: 96: Hoare triple {29972#(<= 2 main_~i~0)} #t~post7 := ~j~0; {29972#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:38,251 INFO L280 TraceCheckUtils]: 97: Hoare triple {29972#(<= 2 main_~i~0)} ~j~0 := 1 + #t~post7; {29972#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:38,252 INFO L280 TraceCheckUtils]: 98: Hoare triple {29972#(<= 2 main_~i~0)} havoc #t~post7; {29972#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:38,252 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 [2020-07-18 06:36:38,253 INFO L280 TraceCheckUtils]: 100: Hoare triple {29972#(<= 2 main_~i~0)} assume 1 + ~i~0 < ~len~0; {29972#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:38,253 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 [2020-07-18 06:36:38,254 INFO L280 TraceCheckUtils]: 102: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-18 06:36:38,254 INFO L280 TraceCheckUtils]: 103: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-18 06:36:38,254 INFO L280 TraceCheckUtils]: 104: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-18 06:36:38,255 INFO L275 TraceCheckUtils]: 105: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #123#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:38,255 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 [2020-07-18 06:36:38,255 INFO L280 TraceCheckUtils]: 107: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-18 06:36:38,256 INFO L280 TraceCheckUtils]: 108: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-18 06:36:38,256 INFO L280 TraceCheckUtils]: 109: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-18 06:36:38,257 INFO L275 TraceCheckUtils]: 110: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #125#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:38,257 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 [2020-07-18 06:36:38,258 INFO L280 TraceCheckUtils]: 112: Hoare triple {29972#(<= 2 main_~i~0)} assume 0 != #t~nondet2; {29972#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:38,258 INFO L280 TraceCheckUtils]: 113: Hoare triple {29972#(<= 2 main_~i~0)} havoc #t~nondet2; {29972#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:38,258 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 [2020-07-18 06:36:38,258 INFO L280 TraceCheckUtils]: 115: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-18 06:36:38,259 INFO L280 TraceCheckUtils]: 116: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-18 06:36:38,259 INFO L280 TraceCheckUtils]: 117: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-18 06:36:38,259 INFO L275 TraceCheckUtils]: 118: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #147#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:38,260 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 [2020-07-18 06:36:38,260 INFO L280 TraceCheckUtils]: 120: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-18 06:36:38,260 INFO L280 TraceCheckUtils]: 121: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-18 06:36:38,260 INFO L280 TraceCheckUtils]: 122: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-18 06:36:38,261 INFO L275 TraceCheckUtils]: 123: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #149#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:38,261 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 [2020-07-18 06:36:38,261 INFO L280 TraceCheckUtils]: 125: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-18 06:36:38,262 INFO L280 TraceCheckUtils]: 126: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-18 06:36:38,262 INFO L280 TraceCheckUtils]: 127: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-18 06:36:38,263 INFO L275 TraceCheckUtils]: 128: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #151#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:38,263 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 [2020-07-18 06:36:38,263 INFO L280 TraceCheckUtils]: 130: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-18 06:36:38,264 INFO L280 TraceCheckUtils]: 131: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-18 06:36:38,264 INFO L280 TraceCheckUtils]: 132: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-18 06:36:38,266 INFO L275 TraceCheckUtils]: 133: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #153#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:38,266 INFO L280 TraceCheckUtils]: 134: Hoare triple {29972#(<= 2 main_~i~0)} #t~post8 := ~j~0; {29972#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:38,267 INFO L280 TraceCheckUtils]: 135: Hoare triple {29972#(<= 2 main_~i~0)} ~j~0 := 1 + #t~post8; {29972#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:38,268 INFO L280 TraceCheckUtils]: 136: Hoare triple {29972#(<= 2 main_~i~0)} havoc #t~post8; {29972#(<= 2 main_~i~0)} is VALID [2020-07-18 06:36:38,269 INFO L280 TraceCheckUtils]: 137: Hoare triple {29972#(<= 2 main_~i~0)} #t~post9 := ~i~0; {30005#(<= 2 |main_#t~post9|)} is VALID [2020-07-18 06:36:38,270 INFO L280 TraceCheckUtils]: 138: Hoare triple {30005#(<= 2 |main_#t~post9|)} ~i~0 := 1 + #t~post9; {30006#(<= 3 main_~i~0)} is VALID [2020-07-18 06:36:38,270 INFO L280 TraceCheckUtils]: 139: Hoare triple {30006#(<= 3 main_~i~0)} havoc #t~post9; {30006#(<= 3 main_~i~0)} is VALID [2020-07-18 06:36:38,271 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 [2020-07-18 06:36:38,271 INFO L280 TraceCheckUtils]: 141: Hoare triple {30006#(<= 3 main_~i~0)} assume 1 + ~i~0 < ~len~0; {30006#(<= 3 main_~i~0)} is VALID [2020-07-18 06:36:38,271 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 [2020-07-18 06:36:38,271 INFO L280 TraceCheckUtils]: 143: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-18 06:36:38,272 INFO L280 TraceCheckUtils]: 144: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-18 06:36:38,272 INFO L280 TraceCheckUtils]: 145: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-18 06:36:38,272 INFO L275 TraceCheckUtils]: 146: Hoare quadruple {29924#true} {30006#(<= 3 main_~i~0)} #123#return; {30006#(<= 3 main_~i~0)} is VALID [2020-07-18 06:36:38,273 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 [2020-07-18 06:36:38,274 INFO L280 TraceCheckUtils]: 148: Hoare triple {30011#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {30012#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-18 06:36:38,275 INFO L280 TraceCheckUtils]: 149: Hoare triple {30012#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {29925#false} is VALID [2020-07-18 06:36:38,275 INFO L280 TraceCheckUtils]: 150: Hoare triple {29925#false} assume !false; {29925#false} is VALID [2020-07-18 06:36:38,292 INFO L134 CoverageAnalysis]: Checked inductivity of 736 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2020-07-18 06:36:38,292 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1159524029] [2020-07-18 06:36:38,292 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 06:36:38,293 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-18 06:36:38,293 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891974073] [2020-07-18 06:36:38,294 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 151 [2020-07-18 06:36:38,294 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 06:36:38,294 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states. [2020-07-18 06:36:38,403 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 97 edges. 97 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:36:38,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-18 06:36:38,404 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 06:36:38,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-18 06:36:38,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-07-18 06:36:38,405 INFO L87 Difference]: Start difference. First operand 572 states and 778 transitions. Second operand 11 states. [2020-07-18 06:36:41,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:36:41,861 INFO L93 Difference]: Finished difference Result 647 states and 885 transitions. [2020-07-18 06:36:41,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-18 06:36:41,861 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 151 [2020-07-18 06:36:41,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 06:36:41,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-18 06:36:41,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 236 transitions. [2020-07-18 06:36:41,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-18 06:36:41,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 236 transitions. [2020-07-18 06:36:41,866 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 17 states and 236 transitions. [2020-07-18 06:36:42,164 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 236 edges. 236 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:36:42,189 INFO L225 Difference]: With dead ends: 647 [2020-07-18 06:36:42,189 INFO L226 Difference]: Without dead ends: 641 [2020-07-18 06:36:42,190 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 [2020-07-18 06:36:42,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2020-07-18 06:36:43,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 412. [2020-07-18 06:36:43,367 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 06:36:43,367 INFO L82 GeneralOperation]: Start isEquivalent. First operand 641 states. Second operand 412 states. [2020-07-18 06:36:43,368 INFO L74 IsIncluded]: Start isIncluded. First operand 641 states. Second operand 412 states. [2020-07-18 06:36:43,368 INFO L87 Difference]: Start difference. First operand 641 states. Second operand 412 states. [2020-07-18 06:36:43,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:36:43,399 INFO L93 Difference]: Finished difference Result 641 states and 873 transitions. [2020-07-18 06:36:43,400 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 873 transitions. [2020-07-18 06:36:43,402 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:36:43,402 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:36:43,402 INFO L74 IsIncluded]: Start isIncluded. First operand 412 states. Second operand 641 states. [2020-07-18 06:36:43,402 INFO L87 Difference]: Start difference. First operand 412 states. Second operand 641 states. [2020-07-18 06:36:43,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:36:43,433 INFO L93 Difference]: Finished difference Result 641 states and 873 transitions. [2020-07-18 06:36:43,434 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 873 transitions. [2020-07-18 06:36:43,436 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:36:43,436 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:36:43,436 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 06:36:43,436 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 06:36:43,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2020-07-18 06:36:43,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 539 transitions. [2020-07-18 06:36:43,451 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 539 transitions. Word has length 151 [2020-07-18 06:36:43,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 06:36:43,452 INFO L479 AbstractCegarLoop]: Abstraction has 412 states and 539 transitions. [2020-07-18 06:36:43,452 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-18 06:36:43,452 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 412 states and 539 transitions. [2020-07-18 06:36:44,462 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 539 edges. 539 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:36:44,463 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 539 transitions. [2020-07-18 06:36:44,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-07-18 06:36:44,465 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 06:36:44,465 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] [2020-07-18 06:36:44,465 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-07-18 06:36:44,465 INFO L427 AbstractCegarLoop]: === Iteration 22 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 06:36:44,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 06:36:44,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1688386477, now seen corresponding path program 1 times [2020-07-18 06:36:44,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 06:36:44,466 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [80397325] [2020-07-18 06:36:44,466 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 06:36:44,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:44,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:44,644 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-18 06:36:44,644 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {33433#true} {33433#true} #119#return; {33433#true} is VALID [2020-07-18 06:36:44,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:44,652 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-18 06:36:44,653 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-18 06:36:44,653 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-18 06:36:44,654 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #123#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:44,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:44,657 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-18 06:36:44,657 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-18 06:36:44,657 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-18 06:36:44,658 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #125#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:44,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:44,661 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-18 06:36:44,661 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-18 06:36:44,661 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-18 06:36:44,662 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #147#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:44,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:44,666 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-18 06:36:44,667 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-18 06:36:44,667 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-18 06:36:44,667 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #149#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:44,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:44,671 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-18 06:36:44,672 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-18 06:36:44,672 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-18 06:36:44,673 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #151#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:44,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:44,676 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-18 06:36:44,676 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-18 06:36:44,677 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-18 06:36:44,678 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #153#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:44,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:44,681 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-18 06:36:44,682 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-18 06:36:44,682 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-18 06:36:44,683 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #123#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:44,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:44,686 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-18 06:36:44,686 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-18 06:36:44,687 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-18 06:36:44,688 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #125#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:44,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:44,691 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-18 06:36:44,691 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-18 06:36:44,691 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-18 06:36:44,692 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #127#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:44,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:44,694 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-18 06:36:44,695 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-18 06:36:44,695 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-18 06:36:44,696 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #129#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:44,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:44,698 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-18 06:36:44,699 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-18 06:36:44,699 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-18 06:36:44,700 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #131#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:44,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:44,702 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-18 06:36:44,703 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-18 06:36:44,703 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-18 06:36:44,703 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #133#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:44,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:44,708 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-18 06:36:44,709 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-18 06:36:44,709 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-18 06:36:44,710 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33489#(<= 2 main_~j~0)} #135#return; {33489#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:44,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:44,713 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-18 06:36:44,713 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-18 06:36:44,713 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-18 06:36:44,714 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33489#(<= 2 main_~j~0)} #137#return; {33489#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:44,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:44,717 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-18 06:36:44,717 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-18 06:36:44,718 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-18 06:36:44,718 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33489#(<= 2 main_~j~0)} #139#return; {33489#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:44,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:44,725 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-18 06:36:44,726 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-18 06:36:44,726 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-18 06:36:44,727 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33489#(<= 2 main_~j~0)} #141#return; {33489#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:44,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:44,730 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-18 06:36:44,730 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-18 06:36:44,730 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-18 06:36:44,737 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33507#(<= 3 main_~j~0)} #143#return; {33507#(<= 3 main_~j~0)} is VALID [2020-07-18 06:36:44,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:44,740 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-18 06:36:44,741 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-18 06:36:44,741 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-18 06:36:44,741 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33507#(<= 3 main_~j~0)} #145#return; {33507#(<= 3 main_~j~0)} is VALID [2020-07-18 06:36:44,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:44,745 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-18 06:36:44,745 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-18 06:36:44,745 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-18 06:36:44,746 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33517#(<= 4 main_~j~0)} #147#return; {33517#(<= 4 main_~j~0)} is VALID [2020-07-18 06:36:44,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:44,753 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-18 06:36:44,753 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-18 06:36:44,753 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-18 06:36:44,754 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33517#(<= 4 main_~j~0)} #149#return; {33517#(<= 4 main_~j~0)} is VALID [2020-07-18 06:36:44,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:44,757 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-18 06:36:44,757 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-18 06:36:44,757 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-18 06:36:44,758 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33517#(<= 4 main_~j~0)} #151#return; {33517#(<= 4 main_~j~0)} is VALID [2020-07-18 06:36:44,758 INFO L263 TraceCheckUtils]: 0: Hoare triple {33433#true} call ULTIMATE.init(); {33433#true} is VALID [2020-07-18 06:36:44,758 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-18 06:36:44,759 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {33433#true} {33433#true} #119#return; {33433#true} is VALID [2020-07-18 06:36:44,759 INFO L263 TraceCheckUtils]: 3: Hoare triple {33433#true} call #t~ret10 := main(); {33433#true} is VALID [2020-07-18 06:36:44,759 INFO L280 TraceCheckUtils]: 4: Hoare triple {33433#true} havoc ~len~0; {33433#true} is VALID [2020-07-18 06:36:44,759 INFO L280 TraceCheckUtils]: 5: Hoare triple {33433#true} havoc ~i~0; {33433#true} is VALID [2020-07-18 06:36:44,759 INFO L280 TraceCheckUtils]: 6: Hoare triple {33433#true} havoc ~j~0; {33433#true} is VALID [2020-07-18 06:36:44,759 INFO L280 TraceCheckUtils]: 7: Hoare triple {33433#true} havoc ~bufsize~0; {33433#true} is VALID [2020-07-18 06:36:44,760 INFO L280 TraceCheckUtils]: 8: Hoare triple {33433#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {33433#true} is VALID [2020-07-18 06:36:44,760 INFO L280 TraceCheckUtils]: 9: Hoare triple {33433#true} ~bufsize~0 := #t~nondet0; {33433#true} is VALID [2020-07-18 06:36:44,760 INFO L280 TraceCheckUtils]: 10: Hoare triple {33433#true} havoc #t~nondet0; {33433#true} is VALID [2020-07-18 06:36:44,760 INFO L280 TraceCheckUtils]: 11: Hoare triple {33433#true} assume !(~bufsize~0 < 0); {33433#true} is VALID [2020-07-18 06:36:44,760 INFO L280 TraceCheckUtils]: 12: Hoare triple {33433#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {33433#true} is VALID [2020-07-18 06:36:44,760 INFO L280 TraceCheckUtils]: 13: Hoare triple {33433#true} ~len~0 := #t~nondet1; {33433#true} is VALID [2020-07-18 06:36:44,761 INFO L280 TraceCheckUtils]: 14: Hoare triple {33433#true} havoc #t~nondet1; {33433#true} is VALID [2020-07-18 06:36:44,761 INFO L280 TraceCheckUtils]: 15: Hoare triple {33433#true} ~limit~0 := ~bufsize~0 - 4; {33433#true} is VALID [2020-07-18 06:36:44,761 INFO L280 TraceCheckUtils]: 16: Hoare triple {33433#true} ~i~0 := 0; {33433#true} is VALID [2020-07-18 06:36:44,761 INFO L280 TraceCheckUtils]: 17: Hoare triple {33433#true} assume !!(~i~0 < ~len~0); {33433#true} is VALID [2020-07-18 06:36:44,762 INFO L280 TraceCheckUtils]: 18: Hoare triple {33433#true} ~j~0 := 0; {33437#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:44,762 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 [2020-07-18 06:36:44,763 INFO L280 TraceCheckUtils]: 20: Hoare triple {33437#(<= 0 main_~j~0)} assume 1 + ~i~0 < ~len~0; {33437#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:44,763 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 [2020-07-18 06:36:44,763 INFO L280 TraceCheckUtils]: 22: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-18 06:36:44,763 INFO L280 TraceCheckUtils]: 23: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-18 06:36:44,763 INFO L280 TraceCheckUtils]: 24: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-18 06:36:44,764 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #123#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:44,764 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 [2020-07-18 06:36:44,764 INFO L280 TraceCheckUtils]: 27: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-18 06:36:44,765 INFO L280 TraceCheckUtils]: 28: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-18 06:36:44,765 INFO L280 TraceCheckUtils]: 29: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-18 06:36:44,767 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #125#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:44,767 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 [2020-07-18 06:36:44,768 INFO L280 TraceCheckUtils]: 32: Hoare triple {33437#(<= 0 main_~j~0)} assume 0 != #t~nondet2; {33437#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:44,768 INFO L280 TraceCheckUtils]: 33: Hoare triple {33437#(<= 0 main_~j~0)} havoc #t~nondet2; {33437#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:44,768 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 [2020-07-18 06:36:44,769 INFO L280 TraceCheckUtils]: 35: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-18 06:36:44,769 INFO L280 TraceCheckUtils]: 36: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-18 06:36:44,769 INFO L280 TraceCheckUtils]: 37: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-18 06:36:44,770 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #147#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:44,770 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 [2020-07-18 06:36:44,771 INFO L280 TraceCheckUtils]: 40: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-18 06:36:44,771 INFO L280 TraceCheckUtils]: 41: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-18 06:36:44,771 INFO L280 TraceCheckUtils]: 42: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-18 06:36:44,772 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #149#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:44,772 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 [2020-07-18 06:36:44,773 INFO L280 TraceCheckUtils]: 45: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-18 06:36:44,773 INFO L280 TraceCheckUtils]: 46: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-18 06:36:44,773 INFO L280 TraceCheckUtils]: 47: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-18 06:36:44,774 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #151#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:44,774 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 [2020-07-18 06:36:44,775 INFO L280 TraceCheckUtils]: 50: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-18 06:36:44,775 INFO L280 TraceCheckUtils]: 51: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-18 06:36:44,775 INFO L280 TraceCheckUtils]: 52: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-18 06:36:44,776 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #153#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:44,777 INFO L280 TraceCheckUtils]: 54: Hoare triple {33437#(<= 0 main_~j~0)} #t~post8 := ~j~0; {33462#(<= 0 |main_#t~post8|)} is VALID [2020-07-18 06:36:44,778 INFO L280 TraceCheckUtils]: 55: Hoare triple {33462#(<= 0 |main_#t~post8|)} ~j~0 := 1 + #t~post8; {33463#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:44,778 INFO L280 TraceCheckUtils]: 56: Hoare triple {33463#(<= 1 main_~j~0)} havoc #t~post8; {33463#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:44,779 INFO L280 TraceCheckUtils]: 57: Hoare triple {33463#(<= 1 main_~j~0)} #t~post9 := ~i~0; {33463#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:44,779 INFO L280 TraceCheckUtils]: 58: Hoare triple {33463#(<= 1 main_~j~0)} ~i~0 := 1 + #t~post9; {33463#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:44,780 INFO L280 TraceCheckUtils]: 59: Hoare triple {33463#(<= 1 main_~j~0)} havoc #t~post9; {33463#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:44,780 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 [2020-07-18 06:36:44,781 INFO L280 TraceCheckUtils]: 61: Hoare triple {33463#(<= 1 main_~j~0)} assume 1 + ~i~0 < ~len~0; {33463#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:44,781 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 [2020-07-18 06:36:44,781 INFO L280 TraceCheckUtils]: 63: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-18 06:36:44,781 INFO L280 TraceCheckUtils]: 64: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-18 06:36:44,781 INFO L280 TraceCheckUtils]: 65: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-18 06:36:44,782 INFO L275 TraceCheckUtils]: 66: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #123#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:44,782 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 [2020-07-18 06:36:44,782 INFO L280 TraceCheckUtils]: 68: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-18 06:36:44,783 INFO L280 TraceCheckUtils]: 69: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-18 06:36:44,783 INFO L280 TraceCheckUtils]: 70: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-18 06:36:44,783 INFO L275 TraceCheckUtils]: 71: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #125#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:44,784 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 [2020-07-18 06:36:44,784 INFO L280 TraceCheckUtils]: 73: Hoare triple {33463#(<= 1 main_~j~0)} assume !(0 != #t~nondet2); {33463#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:44,785 INFO L280 TraceCheckUtils]: 74: Hoare triple {33463#(<= 1 main_~j~0)} havoc #t~nondet2; {33463#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:44,785 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 [2020-07-18 06:36:44,785 INFO L280 TraceCheckUtils]: 76: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-18 06:36:44,786 INFO L280 TraceCheckUtils]: 77: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-18 06:36:44,786 INFO L280 TraceCheckUtils]: 78: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-18 06:36:44,787 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #127#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:44,787 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 [2020-07-18 06:36:44,787 INFO L280 TraceCheckUtils]: 81: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-18 06:36:44,787 INFO L280 TraceCheckUtils]: 82: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-18 06:36:44,788 INFO L280 TraceCheckUtils]: 83: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-18 06:36:44,788 INFO L275 TraceCheckUtils]: 84: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #129#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:44,789 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 [2020-07-18 06:36:44,789 INFO L280 TraceCheckUtils]: 86: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-18 06:36:44,789 INFO L280 TraceCheckUtils]: 87: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-18 06:36:44,790 INFO L280 TraceCheckUtils]: 88: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-18 06:36:44,790 INFO L275 TraceCheckUtils]: 89: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #131#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:44,791 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 [2020-07-18 06:36:44,791 INFO L280 TraceCheckUtils]: 91: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-18 06:36:44,791 INFO L280 TraceCheckUtils]: 92: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-18 06:36:44,792 INFO L280 TraceCheckUtils]: 93: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-18 06:36:44,792 INFO L275 TraceCheckUtils]: 94: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #133#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:44,793 INFO L280 TraceCheckUtils]: 95: Hoare triple {33463#(<= 1 main_~j~0)} #t~post3 := ~j~0; {33488#(<= 1 |main_#t~post3|)} is VALID [2020-07-18 06:36:44,794 INFO L280 TraceCheckUtils]: 96: Hoare triple {33488#(<= 1 |main_#t~post3|)} ~j~0 := 1 + #t~post3; {33489#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:44,795 INFO L280 TraceCheckUtils]: 97: Hoare triple {33489#(<= 2 main_~j~0)} havoc #t~post3; {33489#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:44,795 INFO L280 TraceCheckUtils]: 98: Hoare triple {33489#(<= 2 main_~j~0)} #t~post4 := ~i~0; {33489#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:44,796 INFO L280 TraceCheckUtils]: 99: Hoare triple {33489#(<= 2 main_~j~0)} ~i~0 := 1 + #t~post4; {33489#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:44,796 INFO L280 TraceCheckUtils]: 100: Hoare triple {33489#(<= 2 main_~j~0)} havoc #t~post4; {33489#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:44,797 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 [2020-07-18 06:36:44,797 INFO L280 TraceCheckUtils]: 102: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-18 06:36:44,797 INFO L280 TraceCheckUtils]: 103: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-18 06:36:44,797 INFO L280 TraceCheckUtils]: 104: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-18 06:36:44,798 INFO L275 TraceCheckUtils]: 105: Hoare quadruple {33433#true} {33489#(<= 2 main_~j~0)} #135#return; {33489#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:44,798 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 [2020-07-18 06:36:44,798 INFO L280 TraceCheckUtils]: 107: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-18 06:36:44,798 INFO L280 TraceCheckUtils]: 108: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-18 06:36:44,799 INFO L280 TraceCheckUtils]: 109: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-18 06:36:44,799 INFO L275 TraceCheckUtils]: 110: Hoare quadruple {33433#true} {33489#(<= 2 main_~j~0)} #137#return; {33489#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:44,799 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 [2020-07-18 06:36:44,800 INFO L280 TraceCheckUtils]: 112: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-18 06:36:44,800 INFO L280 TraceCheckUtils]: 113: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-18 06:36:44,800 INFO L280 TraceCheckUtils]: 114: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-18 06:36:44,801 INFO L275 TraceCheckUtils]: 115: Hoare quadruple {33433#true} {33489#(<= 2 main_~j~0)} #139#return; {33489#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:44,801 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 [2020-07-18 06:36:44,802 INFO L280 TraceCheckUtils]: 117: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-18 06:36:44,802 INFO L280 TraceCheckUtils]: 118: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-18 06:36:44,802 INFO L280 TraceCheckUtils]: 119: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-18 06:36:44,803 INFO L275 TraceCheckUtils]: 120: Hoare quadruple {33433#true} {33489#(<= 2 main_~j~0)} #141#return; {33489#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:44,804 INFO L280 TraceCheckUtils]: 121: Hoare triple {33489#(<= 2 main_~j~0)} #t~post5 := ~j~0; {33506#(<= 2 |main_#t~post5|)} is VALID [2020-07-18 06:36:44,805 INFO L280 TraceCheckUtils]: 122: Hoare triple {33506#(<= 2 |main_#t~post5|)} ~j~0 := 1 + #t~post5; {33507#(<= 3 main_~j~0)} is VALID [2020-07-18 06:36:44,806 INFO L280 TraceCheckUtils]: 123: Hoare triple {33507#(<= 3 main_~j~0)} havoc #t~post5; {33507#(<= 3 main_~j~0)} is VALID [2020-07-18 06:36:44,807 INFO L280 TraceCheckUtils]: 124: Hoare triple {33507#(<= 3 main_~j~0)} #t~post6 := ~i~0; {33507#(<= 3 main_~j~0)} is VALID [2020-07-18 06:36:44,807 INFO L280 TraceCheckUtils]: 125: Hoare triple {33507#(<= 3 main_~j~0)} ~i~0 := 1 + #t~post6; {33507#(<= 3 main_~j~0)} is VALID [2020-07-18 06:36:44,809 INFO L280 TraceCheckUtils]: 126: Hoare triple {33507#(<= 3 main_~j~0)} havoc #t~post6; {33507#(<= 3 main_~j~0)} is VALID [2020-07-18 06:36:44,810 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 [2020-07-18 06:36:44,810 INFO L280 TraceCheckUtils]: 128: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-18 06:36:44,810 INFO L280 TraceCheckUtils]: 129: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-18 06:36:44,810 INFO L280 TraceCheckUtils]: 130: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-18 06:36:44,811 INFO L275 TraceCheckUtils]: 131: Hoare quadruple {33433#true} {33507#(<= 3 main_~j~0)} #143#return; {33507#(<= 3 main_~j~0)} is VALID [2020-07-18 06:36:44,811 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 [2020-07-18 06:36:44,811 INFO L280 TraceCheckUtils]: 133: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-18 06:36:44,811 INFO L280 TraceCheckUtils]: 134: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-18 06:36:44,812 INFO L280 TraceCheckUtils]: 135: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-18 06:36:44,812 INFO L275 TraceCheckUtils]: 136: Hoare quadruple {33433#true} {33507#(<= 3 main_~j~0)} #145#return; {33507#(<= 3 main_~j~0)} is VALID [2020-07-18 06:36:44,813 INFO L280 TraceCheckUtils]: 137: Hoare triple {33507#(<= 3 main_~j~0)} #t~post7 := ~j~0; {33516#(<= 3 |main_#t~post7|)} is VALID [2020-07-18 06:36:44,814 INFO L280 TraceCheckUtils]: 138: Hoare triple {33516#(<= 3 |main_#t~post7|)} ~j~0 := 1 + #t~post7; {33517#(<= 4 main_~j~0)} is VALID [2020-07-18 06:36:44,814 INFO L280 TraceCheckUtils]: 139: Hoare triple {33517#(<= 4 main_~j~0)} havoc #t~post7; {33517#(<= 4 main_~j~0)} is VALID [2020-07-18 06:36:44,815 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 [2020-07-18 06:36:44,815 INFO L280 TraceCheckUtils]: 141: Hoare triple {33517#(<= 4 main_~j~0)} assume !(1 + ~i~0 < ~len~0); {33517#(<= 4 main_~j~0)} is VALID [2020-07-18 06:36:44,815 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 [2020-07-18 06:36:44,816 INFO L280 TraceCheckUtils]: 143: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-18 06:36:44,816 INFO L280 TraceCheckUtils]: 144: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-18 06:36:44,816 INFO L280 TraceCheckUtils]: 145: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-18 06:36:44,817 INFO L275 TraceCheckUtils]: 146: Hoare quadruple {33433#true} {33517#(<= 4 main_~j~0)} #147#return; {33517#(<= 4 main_~j~0)} is VALID [2020-07-18 06:36:44,817 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 [2020-07-18 06:36:44,817 INFO L280 TraceCheckUtils]: 148: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-18 06:36:44,817 INFO L280 TraceCheckUtils]: 149: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-18 06:36:44,817 INFO L280 TraceCheckUtils]: 150: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-18 06:36:44,818 INFO L275 TraceCheckUtils]: 151: Hoare quadruple {33433#true} {33517#(<= 4 main_~j~0)} #149#return; {33517#(<= 4 main_~j~0)} is VALID [2020-07-18 06:36:44,818 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 [2020-07-18 06:36:44,818 INFO L280 TraceCheckUtils]: 153: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-18 06:36:44,819 INFO L280 TraceCheckUtils]: 154: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-18 06:36:44,819 INFO L280 TraceCheckUtils]: 155: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-18 06:36:44,820 INFO L275 TraceCheckUtils]: 156: Hoare quadruple {33433#true} {33517#(<= 4 main_~j~0)} #151#return; {33517#(<= 4 main_~j~0)} is VALID [2020-07-18 06:36:44,821 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 [2020-07-18 06:36:44,822 INFO L280 TraceCheckUtils]: 158: Hoare triple {33530#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {33531#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-18 06:36:44,823 INFO L280 TraceCheckUtils]: 159: Hoare triple {33531#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {33434#false} is VALID [2020-07-18 06:36:44,823 INFO L280 TraceCheckUtils]: 160: Hoare triple {33434#false} assume !false; {33434#false} is VALID [2020-07-18 06:36:44,863 INFO L134 CoverageAnalysis]: Checked inductivity of 896 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2020-07-18 06:36:44,863 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [80397325] [2020-07-18 06:36:44,864 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 06:36:44,864 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-07-18 06:36:44,864 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133081500] [2020-07-18 06:36:44,865 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 161 [2020-07-18 06:36:44,865 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 06:36:44,865 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states. [2020-07-18 06:36:44,979 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 101 edges. 101 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:36:44,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-18 06:36:44,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 06:36:44,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-18 06:36:44,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-07-18 06:36:44,980 INFO L87 Difference]: Start difference. First operand 412 states and 539 transitions. Second operand 13 states. [2020-07-18 06:36:48,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:36:48,503 INFO L93 Difference]: Finished difference Result 505 states and 669 transitions. [2020-07-18 06:36:48,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-18 06:36:48,503 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 161 [2020-07-18 06:36:48,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 06:36:48,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-07-18 06:36:48,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 224 transitions. [2020-07-18 06:36:48,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-07-18 06:36:48,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 224 transitions. [2020-07-18 06:36:48,509 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 20 states and 224 transitions. [2020-07-18 06:36:48,798 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 224 edges. 224 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:36:48,816 INFO L225 Difference]: With dead ends: 505 [2020-07-18 06:36:48,816 INFO L226 Difference]: Without dead ends: 495 [2020-07-18 06:36:48,817 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 [2020-07-18 06:36:48,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2020-07-18 06:36:50,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 459. [2020-07-18 06:36:50,111 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 06:36:50,111 INFO L82 GeneralOperation]: Start isEquivalent. First operand 495 states. Second operand 459 states. [2020-07-18 06:36:50,111 INFO L74 IsIncluded]: Start isIncluded. First operand 495 states. Second operand 459 states. [2020-07-18 06:36:50,111 INFO L87 Difference]: Start difference. First operand 495 states. Second operand 459 states. [2020-07-18 06:36:50,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:36:50,130 INFO L93 Difference]: Finished difference Result 495 states and 651 transitions. [2020-07-18 06:36:50,131 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 651 transitions. [2020-07-18 06:36:50,132 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:36:50,132 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:36:50,132 INFO L74 IsIncluded]: Start isIncluded. First operand 459 states. Second operand 495 states. [2020-07-18 06:36:50,133 INFO L87 Difference]: Start difference. First operand 459 states. Second operand 495 states. [2020-07-18 06:36:50,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:36:50,151 INFO L93 Difference]: Finished difference Result 495 states and 651 transitions. [2020-07-18 06:36:50,151 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 651 transitions. [2020-07-18 06:36:50,153 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:36:50,153 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:36:50,153 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 06:36:50,153 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 06:36:50,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 459 states. [2020-07-18 06:36:50,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 603 transitions. [2020-07-18 06:36:50,169 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 603 transitions. Word has length 161 [2020-07-18 06:36:50,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 06:36:50,169 INFO L479 AbstractCegarLoop]: Abstraction has 459 states and 603 transitions. [2020-07-18 06:36:50,169 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-18 06:36:50,170 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 459 states and 603 transitions. [2020-07-18 06:36:51,302 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 603 edges. 603 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:36:51,302 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 603 transitions. [2020-07-18 06:36:51,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-07-18 06:36:51,305 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 06:36:51,305 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] [2020-07-18 06:36:51,305 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-07-18 06:36:51,305 INFO L427 AbstractCegarLoop]: === Iteration 23 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 06:36:51,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 06:36:51,305 INFO L82 PathProgramCache]: Analyzing trace with hash -1620079197, now seen corresponding path program 2 times [2020-07-18 06:36:51,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 06:36:51,306 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1289406978] [2020-07-18 06:36:51,306 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 06:36:51,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:51,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:51,481 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-18 06:36:51,482 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {36474#true} {36474#true} #119#return; {36474#true} is VALID [2020-07-18 06:36:51,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:51,485 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-18 06:36:51,486 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-18 06:36:51,486 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-18 06:36:51,487 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #123#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:51,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:51,489 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-18 06:36:51,490 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-18 06:36:51,490 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-18 06:36:51,491 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #125#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:51,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:51,494 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-18 06:36:51,494 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-18 06:36:51,494 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-18 06:36:51,495 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #127#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:51,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:51,498 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-18 06:36:51,498 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-18 06:36:51,499 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-18 06:36:51,499 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #129#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:51,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:51,502 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-18 06:36:51,502 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-18 06:36:51,502 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-18 06:36:51,503 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #131#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:51,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:51,507 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-18 06:36:51,507 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-18 06:36:51,507 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-18 06:36:51,508 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #133#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:51,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:51,511 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-18 06:36:51,512 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-18 06:36:51,512 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-18 06:36:51,513 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36504#(<= 1 main_~j~0)} #135#return; {36504#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:51,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:51,516 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-18 06:36:51,516 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-18 06:36:51,517 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-18 06:36:51,517 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36504#(<= 1 main_~j~0)} #137#return; {36504#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:51,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:51,521 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-18 06:36:51,521 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-18 06:36:51,521 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-18 06:36:51,522 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36504#(<= 1 main_~j~0)} #139#return; {36504#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:51,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:51,525 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-18 06:36:51,526 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-18 06:36:51,526 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-18 06:36:51,527 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36504#(<= 1 main_~j~0)} #141#return; {36504#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:51,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:51,531 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-18 06:36:51,531 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-18 06:36:51,531 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-18 06:36:51,532 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36522#(<= 2 main_~j~0)} #143#return; {36522#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:51,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:51,537 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-18 06:36:51,538 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-18 06:36:51,538 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-18 06:36:51,538 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36522#(<= 2 main_~j~0)} #145#return; {36522#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:51,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:51,542 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-18 06:36:51,542 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-18 06:36:51,543 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-18 06:36:51,543 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #123#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-18 06:36:51,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:51,547 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-18 06:36:51,547 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-18 06:36:51,547 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-18 06:36:51,548 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #125#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-18 06:36:51,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:51,552 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-18 06:36:51,552 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-18 06:36:51,552 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-18 06:36:51,553 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #147#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-18 06:36:51,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:51,557 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-18 06:36:51,557 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-18 06:36:51,570 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-18 06:36:51,573 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #149#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-18 06:36:51,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:51,576 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-18 06:36:51,576 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-18 06:36:51,576 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-18 06:36:51,577 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #151#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-18 06:36:51,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:51,580 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-18 06:36:51,580 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-18 06:36:51,580 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-18 06:36:51,581 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #153#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-18 06:36:51,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:51,584 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-18 06:36:51,584 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-18 06:36:51,584 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-18 06:36:51,585 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36558#(<= 4 main_~j~0)} #147#return; {36558#(<= 4 main_~j~0)} is VALID [2020-07-18 06:36:51,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:51,588 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-18 06:36:51,588 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-18 06:36:51,588 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-18 06:36:51,589 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36558#(<= 4 main_~j~0)} #149#return; {36558#(<= 4 main_~j~0)} is VALID [2020-07-18 06:36:51,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:36:51,592 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-18 06:36:51,592 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-18 06:36:51,592 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-18 06:36:51,593 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36558#(<= 4 main_~j~0)} #151#return; {36558#(<= 4 main_~j~0)} is VALID [2020-07-18 06:36:51,593 INFO L263 TraceCheckUtils]: 0: Hoare triple {36474#true} call ULTIMATE.init(); {36474#true} is VALID [2020-07-18 06:36:51,593 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-18 06:36:51,593 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {36474#true} {36474#true} #119#return; {36474#true} is VALID [2020-07-18 06:36:51,593 INFO L263 TraceCheckUtils]: 3: Hoare triple {36474#true} call #t~ret10 := main(); {36474#true} is VALID [2020-07-18 06:36:51,594 INFO L280 TraceCheckUtils]: 4: Hoare triple {36474#true} havoc ~len~0; {36474#true} is VALID [2020-07-18 06:36:51,594 INFO L280 TraceCheckUtils]: 5: Hoare triple {36474#true} havoc ~i~0; {36474#true} is VALID [2020-07-18 06:36:51,594 INFO L280 TraceCheckUtils]: 6: Hoare triple {36474#true} havoc ~j~0; {36474#true} is VALID [2020-07-18 06:36:51,594 INFO L280 TraceCheckUtils]: 7: Hoare triple {36474#true} havoc ~bufsize~0; {36474#true} is VALID [2020-07-18 06:36:51,594 INFO L280 TraceCheckUtils]: 8: Hoare triple {36474#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {36474#true} is VALID [2020-07-18 06:36:51,594 INFO L280 TraceCheckUtils]: 9: Hoare triple {36474#true} ~bufsize~0 := #t~nondet0; {36474#true} is VALID [2020-07-18 06:36:51,595 INFO L280 TraceCheckUtils]: 10: Hoare triple {36474#true} havoc #t~nondet0; {36474#true} is VALID [2020-07-18 06:36:51,595 INFO L280 TraceCheckUtils]: 11: Hoare triple {36474#true} assume !(~bufsize~0 < 0); {36474#true} is VALID [2020-07-18 06:36:51,595 INFO L280 TraceCheckUtils]: 12: Hoare triple {36474#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {36474#true} is VALID [2020-07-18 06:36:51,595 INFO L280 TraceCheckUtils]: 13: Hoare triple {36474#true} ~len~0 := #t~nondet1; {36474#true} is VALID [2020-07-18 06:36:51,595 INFO L280 TraceCheckUtils]: 14: Hoare triple {36474#true} havoc #t~nondet1; {36474#true} is VALID [2020-07-18 06:36:51,596 INFO L280 TraceCheckUtils]: 15: Hoare triple {36474#true} ~limit~0 := ~bufsize~0 - 4; {36474#true} is VALID [2020-07-18 06:36:51,596 INFO L280 TraceCheckUtils]: 16: Hoare triple {36474#true} ~i~0 := 0; {36474#true} is VALID [2020-07-18 06:36:51,596 INFO L280 TraceCheckUtils]: 17: Hoare triple {36474#true} assume !!(~i~0 < ~len~0); {36474#true} is VALID [2020-07-18 06:36:51,597 INFO L280 TraceCheckUtils]: 18: Hoare triple {36474#true} ~j~0 := 0; {36478#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:51,597 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 [2020-07-18 06:36:51,598 INFO L280 TraceCheckUtils]: 20: Hoare triple {36478#(<= 0 main_~j~0)} assume 1 + ~i~0 < ~len~0; {36478#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:51,598 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 [2020-07-18 06:36:51,598 INFO L280 TraceCheckUtils]: 22: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-18 06:36:51,598 INFO L280 TraceCheckUtils]: 23: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-18 06:36:51,598 INFO L280 TraceCheckUtils]: 24: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-18 06:36:51,599 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #123#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:51,599 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 [2020-07-18 06:36:51,599 INFO L280 TraceCheckUtils]: 27: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-18 06:36:51,599 INFO L280 TraceCheckUtils]: 28: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-18 06:36:51,600 INFO L280 TraceCheckUtils]: 29: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-18 06:36:51,600 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #125#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:51,601 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 [2020-07-18 06:36:51,601 INFO L280 TraceCheckUtils]: 32: Hoare triple {36478#(<= 0 main_~j~0)} assume !(0 != #t~nondet2); {36478#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:51,602 INFO L280 TraceCheckUtils]: 33: Hoare triple {36478#(<= 0 main_~j~0)} havoc #t~nondet2; {36478#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:51,602 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 [2020-07-18 06:36:51,602 INFO L280 TraceCheckUtils]: 35: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-18 06:36:51,602 INFO L280 TraceCheckUtils]: 36: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-18 06:36:51,602 INFO L280 TraceCheckUtils]: 37: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-18 06:36:51,603 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #127#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:51,603 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 [2020-07-18 06:36:51,604 INFO L280 TraceCheckUtils]: 40: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-18 06:36:51,604 INFO L280 TraceCheckUtils]: 41: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-18 06:36:51,604 INFO L280 TraceCheckUtils]: 42: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-18 06:36:51,604 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #129#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:51,605 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 [2020-07-18 06:36:51,605 INFO L280 TraceCheckUtils]: 45: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-18 06:36:51,605 INFO L280 TraceCheckUtils]: 46: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-18 06:36:51,605 INFO L280 TraceCheckUtils]: 47: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-18 06:36:51,606 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #131#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:51,606 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 [2020-07-18 06:36:51,606 INFO L280 TraceCheckUtils]: 50: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-18 06:36:51,606 INFO L280 TraceCheckUtils]: 51: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-18 06:36:51,606 INFO L280 TraceCheckUtils]: 52: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-18 06:36:51,607 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #133#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-18 06:36:51,608 INFO L280 TraceCheckUtils]: 54: Hoare triple {36478#(<= 0 main_~j~0)} #t~post3 := ~j~0; {36503#(<= 0 |main_#t~post3|)} is VALID [2020-07-18 06:36:51,608 INFO L280 TraceCheckUtils]: 55: Hoare triple {36503#(<= 0 |main_#t~post3|)} ~j~0 := 1 + #t~post3; {36504#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:51,609 INFO L280 TraceCheckUtils]: 56: Hoare triple {36504#(<= 1 main_~j~0)} havoc #t~post3; {36504#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:51,610 INFO L280 TraceCheckUtils]: 57: Hoare triple {36504#(<= 1 main_~j~0)} #t~post4 := ~i~0; {36504#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:51,610 INFO L280 TraceCheckUtils]: 58: Hoare triple {36504#(<= 1 main_~j~0)} ~i~0 := 1 + #t~post4; {36504#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:51,611 INFO L280 TraceCheckUtils]: 59: Hoare triple {36504#(<= 1 main_~j~0)} havoc #t~post4; {36504#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:51,611 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 [2020-07-18 06:36:51,611 INFO L280 TraceCheckUtils]: 61: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-18 06:36:51,611 INFO L280 TraceCheckUtils]: 62: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-18 06:36:51,611 INFO L280 TraceCheckUtils]: 63: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-18 06:36:51,612 INFO L275 TraceCheckUtils]: 64: Hoare quadruple {36474#true} {36504#(<= 1 main_~j~0)} #135#return; {36504#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:51,612 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 [2020-07-18 06:36:51,612 INFO L280 TraceCheckUtils]: 66: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-18 06:36:51,612 INFO L280 TraceCheckUtils]: 67: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-18 06:36:51,613 INFO L280 TraceCheckUtils]: 68: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-18 06:36:51,614 INFO L275 TraceCheckUtils]: 69: Hoare quadruple {36474#true} {36504#(<= 1 main_~j~0)} #137#return; {36504#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:51,614 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 [2020-07-18 06:36:51,614 INFO L280 TraceCheckUtils]: 71: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-18 06:36:51,614 INFO L280 TraceCheckUtils]: 72: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-18 06:36:51,614 INFO L280 TraceCheckUtils]: 73: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-18 06:36:51,615 INFO L275 TraceCheckUtils]: 74: Hoare quadruple {36474#true} {36504#(<= 1 main_~j~0)} #139#return; {36504#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:51,615 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 [2020-07-18 06:36:51,615 INFO L280 TraceCheckUtils]: 76: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-18 06:36:51,615 INFO L280 TraceCheckUtils]: 77: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-18 06:36:51,616 INFO L280 TraceCheckUtils]: 78: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-18 06:36:51,616 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {36474#true} {36504#(<= 1 main_~j~0)} #141#return; {36504#(<= 1 main_~j~0)} is VALID [2020-07-18 06:36:51,617 INFO L280 TraceCheckUtils]: 80: Hoare triple {36504#(<= 1 main_~j~0)} #t~post5 := ~j~0; {36521#(<= 1 |main_#t~post5|)} is VALID [2020-07-18 06:36:51,617 INFO L280 TraceCheckUtils]: 81: Hoare triple {36521#(<= 1 |main_#t~post5|)} ~j~0 := 1 + #t~post5; {36522#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:51,618 INFO L280 TraceCheckUtils]: 82: Hoare triple {36522#(<= 2 main_~j~0)} havoc #t~post5; {36522#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:51,618 INFO L280 TraceCheckUtils]: 83: Hoare triple {36522#(<= 2 main_~j~0)} #t~post6 := ~i~0; {36522#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:51,619 INFO L280 TraceCheckUtils]: 84: Hoare triple {36522#(<= 2 main_~j~0)} ~i~0 := 1 + #t~post6; {36522#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:51,619 INFO L280 TraceCheckUtils]: 85: Hoare triple {36522#(<= 2 main_~j~0)} havoc #t~post6; {36522#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:51,620 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 [2020-07-18 06:36:51,620 INFO L280 TraceCheckUtils]: 87: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-18 06:36:51,620 INFO L280 TraceCheckUtils]: 88: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-18 06:36:51,620 INFO L280 TraceCheckUtils]: 89: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-18 06:36:51,621 INFO L275 TraceCheckUtils]: 90: Hoare quadruple {36474#true} {36522#(<= 2 main_~j~0)} #143#return; {36522#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:51,621 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 [2020-07-18 06:36:51,621 INFO L280 TraceCheckUtils]: 92: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-18 06:36:51,621 INFO L280 TraceCheckUtils]: 93: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-18 06:36:51,622 INFO L280 TraceCheckUtils]: 94: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-18 06:36:51,622 INFO L275 TraceCheckUtils]: 95: Hoare quadruple {36474#true} {36522#(<= 2 main_~j~0)} #145#return; {36522#(<= 2 main_~j~0)} is VALID [2020-07-18 06:36:51,623 INFO L280 TraceCheckUtils]: 96: Hoare triple {36522#(<= 2 main_~j~0)} #t~post7 := ~j~0; {36531#(<= 2 |main_#t~post7|)} is VALID [2020-07-18 06:36:51,624 INFO L280 TraceCheckUtils]: 97: Hoare triple {36531#(<= 2 |main_#t~post7|)} ~j~0 := 1 + #t~post7; {36532#(<= 3 main_~j~0)} is VALID [2020-07-18 06:36:51,624 INFO L280 TraceCheckUtils]: 98: Hoare triple {36532#(<= 3 main_~j~0)} havoc #t~post7; {36532#(<= 3 main_~j~0)} is VALID [2020-07-18 06:36:51,625 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 [2020-07-18 06:36:51,625 INFO L280 TraceCheckUtils]: 100: Hoare triple {36532#(<= 3 main_~j~0)} assume 1 + ~i~0 < ~len~0; {36532#(<= 3 main_~j~0)} is VALID [2020-07-18 06:36:51,625 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 [2020-07-18 06:36:51,625 INFO L280 TraceCheckUtils]: 102: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-18 06:36:51,626 INFO L280 TraceCheckUtils]: 103: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-18 06:36:51,626 INFO L280 TraceCheckUtils]: 104: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-18 06:36:51,626 INFO L275 TraceCheckUtils]: 105: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #123#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-18 06:36:51,627 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 [2020-07-18 06:36:51,627 INFO L280 TraceCheckUtils]: 107: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-18 06:36:51,627 INFO L280 TraceCheckUtils]: 108: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-18 06:36:51,627 INFO L280 TraceCheckUtils]: 109: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-18 06:36:51,628 INFO L275 TraceCheckUtils]: 110: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #125#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-18 06:36:51,628 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 [2020-07-18 06:36:51,629 INFO L280 TraceCheckUtils]: 112: Hoare triple {36532#(<= 3 main_~j~0)} assume 0 != #t~nondet2; {36532#(<= 3 main_~j~0)} is VALID [2020-07-18 06:36:51,629 INFO L280 TraceCheckUtils]: 113: Hoare triple {36532#(<= 3 main_~j~0)} havoc #t~nondet2; {36532#(<= 3 main_~j~0)} is VALID [2020-07-18 06:36:51,629 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 [2020-07-18 06:36:51,630 INFO L280 TraceCheckUtils]: 115: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-18 06:36:51,630 INFO L280 TraceCheckUtils]: 116: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-18 06:36:51,630 INFO L280 TraceCheckUtils]: 117: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-18 06:36:51,631 INFO L275 TraceCheckUtils]: 118: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #147#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-18 06:36:51,631 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 [2020-07-18 06:36:51,631 INFO L280 TraceCheckUtils]: 120: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-18 06:36:51,631 INFO L280 TraceCheckUtils]: 121: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-18 06:36:51,631 INFO L280 TraceCheckUtils]: 122: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-18 06:36:51,632 INFO L275 TraceCheckUtils]: 123: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #149#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-18 06:36:51,632 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 [2020-07-18 06:36:51,632 INFO L280 TraceCheckUtils]: 125: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-18 06:36:51,632 INFO L280 TraceCheckUtils]: 126: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-18 06:36:51,633 INFO L280 TraceCheckUtils]: 127: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-18 06:36:51,633 INFO L275 TraceCheckUtils]: 128: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #151#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-18 06:36:51,634 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 [2020-07-18 06:36:51,634 INFO L280 TraceCheckUtils]: 130: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-18 06:36:51,634 INFO L280 TraceCheckUtils]: 131: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-18 06:36:51,634 INFO L280 TraceCheckUtils]: 132: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-18 06:36:51,635 INFO L275 TraceCheckUtils]: 133: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #153#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-18 06:36:51,635 INFO L280 TraceCheckUtils]: 134: Hoare triple {36532#(<= 3 main_~j~0)} #t~post8 := ~j~0; {36557#(<= 3 |main_#t~post8|)} is VALID [2020-07-18 06:36:51,636 INFO L280 TraceCheckUtils]: 135: Hoare triple {36557#(<= 3 |main_#t~post8|)} ~j~0 := 1 + #t~post8; {36558#(<= 4 main_~j~0)} is VALID [2020-07-18 06:36:51,637 INFO L280 TraceCheckUtils]: 136: Hoare triple {36558#(<= 4 main_~j~0)} havoc #t~post8; {36558#(<= 4 main_~j~0)} is VALID [2020-07-18 06:36:51,637 INFO L280 TraceCheckUtils]: 137: Hoare triple {36558#(<= 4 main_~j~0)} #t~post9 := ~i~0; {36558#(<= 4 main_~j~0)} is VALID [2020-07-18 06:36:51,638 INFO L280 TraceCheckUtils]: 138: Hoare triple {36558#(<= 4 main_~j~0)} ~i~0 := 1 + #t~post9; {36558#(<= 4 main_~j~0)} is VALID [2020-07-18 06:36:51,638 INFO L280 TraceCheckUtils]: 139: Hoare triple {36558#(<= 4 main_~j~0)} havoc #t~post9; {36558#(<= 4 main_~j~0)} is VALID [2020-07-18 06:36:51,639 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 [2020-07-18 06:36:51,639 INFO L280 TraceCheckUtils]: 141: Hoare triple {36558#(<= 4 main_~j~0)} assume !(1 + ~i~0 < ~len~0); {36558#(<= 4 main_~j~0)} is VALID [2020-07-18 06:36:51,639 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 [2020-07-18 06:36:51,639 INFO L280 TraceCheckUtils]: 143: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-18 06:36:51,640 INFO L280 TraceCheckUtils]: 144: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-18 06:36:51,640 INFO L280 TraceCheckUtils]: 145: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-18 06:36:51,640 INFO L275 TraceCheckUtils]: 146: Hoare quadruple {36474#true} {36558#(<= 4 main_~j~0)} #147#return; {36558#(<= 4 main_~j~0)} is VALID [2020-07-18 06:36:51,641 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 [2020-07-18 06:36:51,641 INFO L280 TraceCheckUtils]: 148: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-18 06:36:51,641 INFO L280 TraceCheckUtils]: 149: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-18 06:36:51,641 INFO L280 TraceCheckUtils]: 150: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-18 06:36:51,642 INFO L275 TraceCheckUtils]: 151: Hoare quadruple {36474#true} {36558#(<= 4 main_~j~0)} #149#return; {36558#(<= 4 main_~j~0)} is VALID [2020-07-18 06:36:51,642 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 [2020-07-18 06:36:51,642 INFO L280 TraceCheckUtils]: 153: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-18 06:36:51,642 INFO L280 TraceCheckUtils]: 154: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-18 06:36:51,642 INFO L280 TraceCheckUtils]: 155: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-18 06:36:51,643 INFO L275 TraceCheckUtils]: 156: Hoare quadruple {36474#true} {36558#(<= 4 main_~j~0)} #151#return; {36558#(<= 4 main_~j~0)} is VALID [2020-07-18 06:36:51,644 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 [2020-07-18 06:36:51,644 INFO L280 TraceCheckUtils]: 158: Hoare triple {36571#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {36572#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-18 06:36:51,645 INFO L280 TraceCheckUtils]: 159: Hoare triple {36572#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {36475#false} is VALID [2020-07-18 06:36:51,645 INFO L280 TraceCheckUtils]: 160: Hoare triple {36475#false} assume !false; {36475#false} is VALID [2020-07-18 06:36:51,662 INFO L134 CoverageAnalysis]: Checked inductivity of 896 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2020-07-18 06:36:51,663 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1289406978] [2020-07-18 06:36:51,663 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 06:36:51,663 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-07-18 06:36:51,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461121318] [2020-07-18 06:36:51,666 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 161 [2020-07-18 06:36:51,666 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 06:36:51,666 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states. [2020-07-18 06:36:51,781 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 101 edges. 101 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:36:51,781 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-18 06:36:51,781 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 06:36:51,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-18 06:36:51,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-07-18 06:36:51,782 INFO L87 Difference]: Start difference. First operand 459 states and 603 transitions. Second operand 13 states. [2020-07-18 06:36:55,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:36:55,228 INFO L93 Difference]: Finished difference Result 499 states and 659 transitions. [2020-07-18 06:36:55,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-18 06:36:55,228 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 161 [2020-07-18 06:36:55,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 06:36:55,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-07-18 06:36:55,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 221 transitions. [2020-07-18 06:36:55,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-07-18 06:36:55,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 221 transitions. [2020-07-18 06:36:55,233 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 20 states and 221 transitions. [2020-07-18 06:36:55,523 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 221 edges. 221 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:36:55,524 INFO L225 Difference]: With dead ends: 499 [2020-07-18 06:36:55,524 INFO L226 Difference]: Without dead ends: 0 [2020-07-18 06:36:55,526 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 [2020-07-18 06:36:55,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-18 06:36:55,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-18 06:36:55,527 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 06:36:55,527 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-18 06:36:55,527 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-18 06:36:55,527 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-18 06:36:55,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:36:55,528 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-18 06:36:55,528 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-18 06:36:55,528 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:36:55,528 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:36:55,528 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-18 06:36:55,528 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-18 06:36:55,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:36:55,528 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-18 06:36:55,528 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-18 06:36:55,529 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:36:55,529 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:36:55,529 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 06:36:55,529 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 06:36:55,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-18 06:36:55,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-18 06:36:55,529 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 161 [2020-07-18 06:36:55,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 06:36:55,529 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-18 06:36:55,529 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-18 06:36:55,530 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 0 states and 0 transitions. [2020-07-18 06:36:55,530 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:36:55,530 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-18 06:36:55,530 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:36:55,530 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-07-18 06:36:55,532 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-18 06:36:56,370 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 41 [2020-07-18 06:36:57,081 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 66 [2020-07-18 06:36:57,842 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 25 [2020-07-18 06:36:58,660 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 22 [2020-07-18 06:36:58,778 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 22 [2020-07-18 06:36:59,205 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 25 [2020-07-18 06:36:59,620 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 22 [2020-07-18 06:37:00,048 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 16 [2020-07-18 06:37:00,747 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 26 [2020-07-18 06:37:01,333 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 11 [2020-07-18 06:37:01,556 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 16 [2020-07-18 06:37:01,899 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 25 [2020-07-18 06:37:02,425 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 28 [2020-07-18 06:37:02,811 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-18 06:37:02,811 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-07-18 06:37:02,811 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-07-18 06:37:02,812 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-18 06:37:02,812 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-18 06:37:02,812 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-07-18 06:37:02,812 INFO L268 CegarLoopResult]: For program point L4-3(lines 3 5) no Hoare annotation was computed. [2020-07-18 06:37:02,812 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-07-18 06:37:02,812 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-07-18 06:37:02,812 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-07-18 06:37:02,813 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-07-18 06:37:02,813 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)) [2020-07-18 06:37:02,813 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)) [2020-07-18 06:37:02,813 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 13 56) the Hoare annotation is: true [2020-07-18 06:37:02,814 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (<= (+ main_~limit~0 4) main_~bufsize~0) [2020-07-18 06:37:02,814 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)))) [2020-07-18 06:37:02,814 INFO L271 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: true [2020-07-18 06:37:02,814 INFO L271 CegarLoopResult]: At program point L23-4(lines 23 54) the Hoare annotation is: true [2020-07-18 06:37:02,814 INFO L271 CegarLoopResult]: At program point L19-1(line 19) the Hoare annotation is: true [2020-07-18 06:37:02,815 INFO L271 CegarLoopResult]: At program point L19-2(line 19) the Hoare annotation is: true [2020-07-18 06:37:02,815 INFO L264 CegarLoopResult]: At program point L48(line 48) the Hoare annotation is: (let ((.cse0 (<= (+ main_~limit~0 4) main_~bufsize~0)) (.cse1 (<= 0 main_~j~0)) (.cse2 (<= (+ main_~j~0 5) main_~bufsize~0))) (or (and (<= (+ main_~i~0 2) main_~len~0) (<= 0 main_~i~0) .cse0 .cse1 .cse2) (and (<= main_~len~0 (+ main_~i~0 1)) .cse0 (< main_~i~0 main_~len~0) .cse1 .cse2))) [2020-07-18 06:37:02,815 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)) [2020-07-18 06:37:02,815 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)) [2020-07-18 06:37:02,815 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)) [2020-07-18 06:37:02,816 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)) [2020-07-18 06:37:02,816 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)) [2020-07-18 06:37:02,816 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)) [2020-07-18 06:37:02,816 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)) [2020-07-18 06:37:02,816 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)) [2020-07-18 06:37:02,816 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)) [2020-07-18 06:37:02,816 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)))) [2020-07-18 06:37:02,816 INFO L271 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: true [2020-07-18 06:37:02,816 INFO L271 CegarLoopResult]: At program point L20-1(line 20) the Hoare annotation is: true [2020-07-18 06:37:02,817 INFO L264 CegarLoopResult]: At program point L49(line 49) the Hoare annotation is: (let ((.cse0 (<= (+ main_~limit~0 4) main_~bufsize~0)) (.cse1 (<= (+ main_~j~0 5) main_~bufsize~0))) (or (and (<= (+ main_~i~0 2) main_~len~0) (<= 0 main_~i~0) .cse0 .cse1 (<= 0 main_~j~0)) (and (<= main_~len~0 (+ main_~i~0 1)) .cse0 (< main_~i~0 main_~len~0) .cse1))) [2020-07-18 06:37:02,817 INFO L271 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: true [2020-07-18 06:37:02,817 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)) [2020-07-18 06:37:02,817 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)) [2020-07-18 06:37:02,817 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)) [2020-07-18 06:37:02,817 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)) [2020-07-18 06:37:02,817 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)) [2020-07-18 06:37:02,818 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)) [2020-07-18 06:37:02,818 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)) [2020-07-18 06:37:02,818 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)) [2020-07-18 06:37:02,818 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)) [2020-07-18 06:37:02,818 INFO L271 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: true [2020-07-18 06:37:02,818 INFO L271 CegarLoopResult]: At program point L21-1(line 21) the Hoare annotation is: true [2020-07-18 06:37:02,818 INFO L271 CegarLoopResult]: At program point L21-2(line 21) the Hoare annotation is: true [2020-07-18 06:37:02,818 INFO L264 CegarLoopResult]: At program point L50(line 50) the Hoare annotation is: (let ((.cse0 (<= (+ main_~limit~0 4) main_~bufsize~0)) (.cse1 (<= (+ main_~j~0 5) main_~bufsize~0))) (or (and (<= main_~len~0 (+ main_~i~0 1)) .cse0 (< main_~i~0 main_~len~0) .cse1) (and (<= (+ main_~i~0 2) main_~len~0) (<= 0 |main_#t~post8|) (<= 0 main_~i~0) .cse0 (<= 0 main_~j~0) .cse1))) [2020-07-18 06:37:02,818 INFO L271 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: true [2020-07-18 06:37:02,819 INFO L264 CegarLoopResult]: At program point L50-1(line 50) the Hoare annotation is: (let ((.cse0 (<= (+ main_~limit~0 4) main_~bufsize~0))) (or (and (<= main_~len~0 (+ main_~i~0 1)) .cse0 (< main_~i~0 main_~len~0)) (and (<= (+ main_~i~0 2) main_~len~0) (<= 0 |main_#t~post8|) (<= 0 main_~i~0) (<= 1 main_~j~0) .cse0))) [2020-07-18 06:37:02,819 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)) [2020-07-18 06:37:02,819 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 13 56) the Hoare annotation is: true [2020-07-18 06:37:02,819 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)) [2020-07-18 06:37:02,819 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)) [2020-07-18 06:37:02,819 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)) [2020-07-18 06:37:02,819 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)) [2020-07-18 06:37:02,819 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)) [2020-07-18 06:37:02,819 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)) [2020-07-18 06:37:02,819 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 56) the Hoare annotation is: true [2020-07-18 06:37:02,820 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)) [2020-07-18 06:37:02,820 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)) [2020-07-18 06:37:02,820 INFO L271 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: true [2020-07-18 06:37:02,820 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))) [2020-07-18 06:37:02,820 INFO L271 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: true [2020-07-18 06:37:02,820 INFO L264 CegarLoopResult]: At program point L51-1(line 51) the Hoare annotation is: (let ((.cse0 (<= (+ main_~limit~0 4) main_~bufsize~0))) (or (and (<= (+ main_~i~0 2) main_~len~0) (<= 0 main_~i~0) (<= 1 main_~j~0) (<= 0 |main_#t~post9|) .cse0) (and (<= main_~len~0 (+ main_~i~0 1)) .cse0 (<= main_~len~0 (+ |main_#t~post9| 1)) (< main_~i~0 main_~len~0)))) [2020-07-18 06:37:02,820 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)))) [2020-07-18 06:37:02,820 INFO L264 CegarLoopResult]: At program point L47(line 47) the Hoare annotation is: (let ((.cse0 (<= (+ main_~limit~0 4) main_~bufsize~0)) (.cse1 (<= 0 main_~j~0)) (.cse2 (<= (+ main_~j~0 5) main_~bufsize~0))) (or (and (<= (+ main_~i~0 2) main_~len~0) (<= 0 main_~i~0) .cse0 .cse1 .cse2) (and (<= main_~len~0 (+ main_~i~0 1)) .cse0 (< main_~i~0 main_~len~0) .cse1 .cse2))) [2020-07-18 06:37:02,821 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)) [2020-07-18 06:37:02,821 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)) [2020-07-18 06:37:02,821 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)) [2020-07-18 06:37:02,821 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)) [2020-07-18 06:37:02,821 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)) [2020-07-18 06:37:02,821 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)) [2020-07-18 06:37:02,821 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-07-18 06:37:02,821 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))) [2020-07-18 06:37:02,821 INFO L264 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: (= 0 |__VERIFIER_assert_#in~cond|) [2020-07-18 06:37:02,822 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))) [2020-07-18 06:37:02,822 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))) [2020-07-18 06:37:02,822 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) the Hoare annotation is: (= 0 |__VERIFIER_assert_#in~cond|) [2020-07-18 06:37:02,825 WARN L170 areAnnotationChecker]: assume_abort_if_notENTRY has no Hoare annotation [2020-07-18 06:37:02,826 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-18 06:37:02,826 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-18 06:37:02,827 WARN L170 areAnnotationChecker]: L4-1 has no Hoare annotation [2020-07-18 06:37:02,827 WARN L170 areAnnotationChecker]: L4-3 has no Hoare annotation [2020-07-18 06:37:02,880 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. [2020-07-18 06:37:02,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.07 06:37:02 BoogieIcfgContainer [2020-07-18 06:37:02,908 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-18 06:37:02,911 INFO L168 Benchmark]: Toolchain (without parser) took 85351.65 ms. Allocated memory was 140.0 MB in the beginning and 592.4 MB in the end (delta: 452.5 MB). Free memory was 105.4 MB in the beginning and 241.9 MB in the end (delta: -136.5 MB). Peak memory consumption was 315.9 MB. Max. memory is 7.1 GB. [2020-07-18 06:37:02,912 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.0 MB. Free memory was 123.5 MB in the beginning and 123.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-18 06:37:02,912 INFO L168 Benchmark]: CACSL2BoogieTranslator took 285.13 ms. Allocated memory is still 140.0 MB. Free memory was 105.0 MB in the beginning and 94.3 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2020-07-18 06:37:02,913 INFO L168 Benchmark]: Boogie Preprocessor took 127.16 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 94.3 MB in the beginning and 182.8 MB in the end (delta: -88.4 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. [2020-07-18 06:37:02,913 INFO L168 Benchmark]: RCFGBuilder took 558.21 ms. Allocated memory is still 204.5 MB. Free memory was 182.8 MB in the beginning and 149.2 MB in the end (delta: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 7.1 GB. [2020-07-18 06:37:02,916 INFO L168 Benchmark]: TraceAbstraction took 84373.91 ms. Allocated memory was 204.5 MB in the beginning and 592.4 MB in the end (delta: 388.0 MB). Free memory was 149.2 MB in the beginning and 241.9 MB in the end (delta: -92.7 MB). Peak memory consumption was 295.3 MB. Max. memory is 7.1 GB. [2020-07-18 06:37:02,918 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 0.24 ms. Allocated memory is still 140.0 MB. Free memory was 123.5 MB in the beginning and 123.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 285.13 ms. Allocated memory is still 140.0 MB. Free memory was 105.0 MB in the beginning and 94.3 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 127.16 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 94.3 MB in the beginning and 182.8 MB in the end (delta: -88.4 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 558.21 ms. Allocated memory is still 204.5 MB. Free memory was 182.8 MB in the beginning and 149.2 MB in the end (delta: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 84373.91 ms. Allocated memory was 204.5 MB in the beginning and 592.4 MB in the end (delta: 388.0 MB). Free memory was 149.2 MB in the beginning and 241.9 MB in the end (delta: -92.7 MB). Peak memory consumption was 295.3 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: 76.9s, OverallIterations: 23, TraceHistogramMax: 22, AutomataDifference: 44.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 7.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2525 SDtfs, 801 SDslu, 12588 SDs, 0 SdLazy, 3823 SolverSat, 428 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 810 GetRequests, 554 SyntacticMatches, 0 SemanticMatches, 256 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=572occurred in iteration=20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 13.6s AutomataMinimizationTime, 23 MinimizatonAttempts, 542 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 74 LocationsWithAnnotation, 1484 PreInvPairs, 2305 NumberOfFragments, 1190 HoareAnnotationTreeSize, 1484 FomulaSimplifications, 3249041 FormulaSimplificationTreeSizeReduction, 1.9s HoareSimplificationTime, 74 FomulaSimplificationsInter, 745853 FormulaSimplificationTreeSizeReductionInter, 4.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.6s InterpolantComputationTime, 2056 NumberOfCodeBlocks, 2056 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 2033 ConstructedInterpolants, 0 QuantifiedInterpolants, 394477 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 23 InterpolantComputations, 23 PerfectInterpolantSequences, 6694/6694 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...