java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_1b.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 16:18:08,980 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 16:18:08,981 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 16:18:08,999 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 16:18:09,000 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 16:18:09,001 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 16:18:09,003 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 16:18:09,013 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 16:18:09,017 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 16:18:09,020 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 16:18:09,022 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 16:18:09,024 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 16:18:09,024 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 16:18:09,026 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 16:18:09,028 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 16:18:09,029 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 16:18:09,030 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 16:18:09,030 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 16:18:09,032 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 16:18:09,033 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 16:18:09,035 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 16:18:09,036 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 16:18:09,036 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 16:18:09,037 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 16:18:09,039 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 16:18:09,039 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 16:18:09,039 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 16:18:09,040 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 16:18:09,041 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 16:18:09,041 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 16:18:09,042 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 16:18:09,042 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 16:18:09,043 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 16:18:09,044 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 16:18:09,045 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 16:18:09,045 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 16:18:09,045 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 16:18:09,046 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 16:18:09,046 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 16:18:09,047 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 16:18:09,047 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 16:18:09,048 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-16 16:18:09,061 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 16:18:09,062 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 16:18:09,063 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-16 16:18:09,063 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-16 16:18:09,063 INFO L138 SettingsManager]: * Use SBE=true [2019-09-16 16:18:09,063 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 16:18:09,064 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 16:18:09,064 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-16 16:18:09,064 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 16:18:09,064 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 16:18:09,064 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 16:18:09,064 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 16:18:09,065 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 16:18:09,065 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 16:18:09,065 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 16:18:09,065 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-16 16:18:09,065 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 16:18:09,066 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 16:18:09,066 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 16:18:09,066 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-16 16:18:09,066 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-16 16:18:09,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 16:18:09,067 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 16:18:09,067 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 16:18:09,067 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-16 16:18:09,067 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-16 16:18:09,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 16:18:09,067 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-16 16:18:09,068 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 16:18:09,096 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 16:18:09,107 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 16:18:09,110 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 16:18:09,112 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 16:18:09,112 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 16:18:09,113 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_1b.cil.c [2019-09-16 16:18:09,180 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ed919d4e/487e53868fd74b1287a99dd64c29bcb5/FLAG21c90604e [2019-09-16 16:18:09,636 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 16:18:09,637 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ssh-simplified/s3_srvr_1b.cil.c [2019-09-16 16:18:09,645 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ed919d4e/487e53868fd74b1287a99dd64c29bcb5/FLAG21c90604e [2019-09-16 16:18:09,974 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ed919d4e/487e53868fd74b1287a99dd64c29bcb5 [2019-09-16 16:18:09,983 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 16:18:09,985 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 16:18:09,986 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 16:18:09,986 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 16:18:09,989 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 16:18:09,990 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 04:18:09" (1/1) ... [2019-09-16 16:18:09,993 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@124af0ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:18:09, skipping insertion in model container [2019-09-16 16:18:09,993 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 04:18:09" (1/1) ... [2019-09-16 16:18:09,999 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 16:18:10,019 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 16:18:10,269 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 16:18:10,275 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 16:18:10,317 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 16:18:10,332 INFO L192 MainTranslator]: Completed translation [2019-09-16 16:18:10,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:18:10 WrapperNode [2019-09-16 16:18:10,333 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 16:18:10,334 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 16:18:10,334 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 16:18:10,334 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 16:18:10,442 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:18:10" (1/1) ... [2019-09-16 16:18:10,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:18:10" (1/1) ... [2019-09-16 16:18:10,449 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:18:10" (1/1) ... [2019-09-16 16:18:10,451 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:18:10" (1/1) ... [2019-09-16 16:18:10,456 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:18:10" (1/1) ... [2019-09-16 16:18:10,463 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:18:10" (1/1) ... [2019-09-16 16:18:10,474 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:18:10" (1/1) ... [2019-09-16 16:18:10,477 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 16:18:10,478 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 16:18:10,478 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 16:18:10,478 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 16:18:10,479 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:18:10" (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 [2019-09-16 16:18:10,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 16:18:10,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 16:18:10,531 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 16:18:10,531 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 16:18:10,531 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-09-16 16:18:10,532 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 16:18:10,532 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-09-16 16:18:10,532 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-16 16:18:10,532 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 16:18:10,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 16:18:10,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 16:18:10,824 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 16:18:10,824 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-16 16:18:10,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 04:18:10 BoogieIcfgContainer [2019-09-16 16:18:10,825 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 16:18:10,826 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 16:18:10,827 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 16:18:10,832 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 16:18:10,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 04:18:09" (1/3) ... [2019-09-16 16:18:10,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3239f0a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 04:18:10, skipping insertion in model container [2019-09-16 16:18:10,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:18:10" (2/3) ... [2019-09-16 16:18:10,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3239f0a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 04:18:10, skipping insertion in model container [2019-09-16 16:18:10,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 04:18:10" (3/3) ... [2019-09-16 16:18:10,836 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_1b.cil.c [2019-09-16 16:18:10,851 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 16:18:10,857 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 16:18:10,872 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 16:18:10,901 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-16 16:18:10,901 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 16:18:10,902 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-16 16:18:10,902 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 16:18:10,902 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 16:18:10,902 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 16:18:10,902 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 16:18:10,902 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 16:18:10,903 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 16:18:10,920 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-09-16 16:18:10,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-09-16 16:18:10,924 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 16:18:10,924 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 16:18:10,926 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 16:18:10,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 16:18:10,932 INFO L82 PathProgramCache]: Analyzing trace with hash -2134687016, now seen corresponding path program 1 times [2019-09-16 16:18:10,933 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 16:18:10,934 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 16:18:10,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:18:10,982 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 16:18:10,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:18:11,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 16:18:11,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 16:18:11,073 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 16:18:11,073 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 16:18:11,077 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 16:18:11,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 16:18:11,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 16:18:11,088 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 3 states. [2019-09-16 16:18:11,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 16:18:11,181 INFO L93 Difference]: Finished difference Result 70 states and 116 transitions. [2019-09-16 16:18:11,181 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 16:18:11,182 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-09-16 16:18:11,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 16:18:11,191 INFO L225 Difference]: With dead ends: 70 [2019-09-16 16:18:11,191 INFO L226 Difference]: Without dead ends: 39 [2019-09-16 16:18:11,194 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 16:18:11,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-09-16 16:18:11,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-09-16 16:18:11,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-09-16 16:18:11,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 55 transitions. [2019-09-16 16:18:11,231 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 55 transitions. Word has length 8 [2019-09-16 16:18:11,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 16:18:11,232 INFO L475 AbstractCegarLoop]: Abstraction has 39 states and 55 transitions. [2019-09-16 16:18:11,232 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 16:18:11,232 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2019-09-16 16:18:11,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-09-16 16:18:11,233 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 16:18:11,233 INFO L407 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 16:18:11,234 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 16:18:11,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 16:18:11,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1966827798, now seen corresponding path program 1 times [2019-09-16 16:18:11,234 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 16:18:11,235 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 16:18:11,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:18:11,236 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 16:18:11,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:18:11,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 16:18:11,262 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 16:18:11,262 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 16:18:11,262 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 16:18:11,264 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 16:18:11,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 16:18:11,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 16:18:11,265 INFO L87 Difference]: Start difference. First operand 39 states and 55 transitions. Second operand 3 states. [2019-09-16 16:18:11,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 16:18:11,330 INFO L93 Difference]: Finished difference Result 87 states and 125 transitions. [2019-09-16 16:18:11,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 16:18:11,331 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-09-16 16:18:11,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 16:18:11,333 INFO L225 Difference]: With dead ends: 87 [2019-09-16 16:18:11,333 INFO L226 Difference]: Without dead ends: 53 [2019-09-16 16:18:11,334 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 16:18:11,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-09-16 16:18:11,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 49. [2019-09-16 16:18:11,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-09-16 16:18:11,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 65 transitions. [2019-09-16 16:18:11,344 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 65 transitions. Word has length 13 [2019-09-16 16:18:11,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 16:18:11,344 INFO L475 AbstractCegarLoop]: Abstraction has 49 states and 65 transitions. [2019-09-16 16:18:11,344 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 16:18:11,345 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 65 transitions. [2019-09-16 16:18:11,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-09-16 16:18:11,346 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 16:18:11,346 INFO L407 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 16:18:11,346 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 16:18:11,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 16:18:11,347 INFO L82 PathProgramCache]: Analyzing trace with hash 1966887380, now seen corresponding path program 1 times [2019-09-16 16:18:11,347 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 16:18:11,347 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 16:18:11,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:18:11,349 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 16:18:11,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:18:11,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 16:18:11,376 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 16:18:11,377 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 16:18:11,377 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 16:18:11,377 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 16:18:11,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 16:18:11,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 16:18:11,378 INFO L87 Difference]: Start difference. First operand 49 states and 65 transitions. Second operand 3 states. [2019-09-16 16:18:11,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 16:18:11,442 INFO L93 Difference]: Finished difference Result 93 states and 130 transitions. [2019-09-16 16:18:11,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 16:18:11,444 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-09-16 16:18:11,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 16:18:11,445 INFO L225 Difference]: With dead ends: 93 [2019-09-16 16:18:11,445 INFO L226 Difference]: Without dead ends: 70 [2019-09-16 16:18:11,446 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 16:18:11,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2019-09-16 16:18:11,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2019-09-16 16:18:11,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-09-16 16:18:11,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 93 transitions. [2019-09-16 16:18:11,459 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 93 transitions. Word has length 13 [2019-09-16 16:18:11,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 16:18:11,459 INFO L475 AbstractCegarLoop]: Abstraction has 70 states and 93 transitions. [2019-09-16 16:18:11,459 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 16:18:11,460 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 93 transitions. [2019-09-16 16:18:11,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-09-16 16:18:11,461 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 16:18:11,461 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 16:18:11,461 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 16:18:11,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 16:18:11,462 INFO L82 PathProgramCache]: Analyzing trace with hash 280007728, now seen corresponding path program 1 times [2019-09-16 16:18:11,462 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 16:18:11,462 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 16:18:11,464 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:18:11,464 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 16:18:11,464 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:18:11,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 16:18:11,504 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-16 16:18:11,505 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 16:18:11,505 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 16:18:11,506 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 16:18:11,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 16:18:11,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 16:18:11,507 INFO L87 Difference]: Start difference. First operand 70 states and 93 transitions. Second operand 3 states. [2019-09-16 16:18:11,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 16:18:11,570 INFO L93 Difference]: Finished difference Result 137 states and 187 transitions. [2019-09-16 16:18:11,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 16:18:11,571 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-09-16 16:18:11,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 16:18:11,572 INFO L225 Difference]: With dead ends: 137 [2019-09-16 16:18:11,573 INFO L226 Difference]: Without dead ends: 93 [2019-09-16 16:18:11,573 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 16:18:11,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2019-09-16 16:18:11,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2019-09-16 16:18:11,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-09-16 16:18:11,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 123 transitions. [2019-09-16 16:18:11,587 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 123 transitions. Word has length 20 [2019-09-16 16:18:11,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 16:18:11,588 INFO L475 AbstractCegarLoop]: Abstraction has 91 states and 123 transitions. [2019-09-16 16:18:11,588 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 16:18:11,588 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 123 transitions. [2019-09-16 16:18:11,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-09-16 16:18:11,589 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 16:18:11,589 INFO L407 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 16:18:11,589 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 16:18:11,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 16:18:11,590 INFO L82 PathProgramCache]: Analyzing trace with hash 885328029, now seen corresponding path program 1 times [2019-09-16 16:18:11,590 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 16:18:11,590 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 16:18:11,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:18:11,592 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 16:18:11,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:18:11,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 16:18:11,633 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-16 16:18:11,634 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 16:18:11,634 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 16:18:11,634 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 16:18:11,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 16:18:11,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 16:18:11,635 INFO L87 Difference]: Start difference. First operand 91 states and 123 transitions. Second operand 3 states. [2019-09-16 16:18:11,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 16:18:11,699 INFO L93 Difference]: Finished difference Result 181 states and 245 transitions. [2019-09-16 16:18:11,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 16:18:11,700 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-09-16 16:18:11,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 16:18:11,701 INFO L225 Difference]: With dead ends: 181 [2019-09-16 16:18:11,702 INFO L226 Difference]: Without dead ends: 76 [2019-09-16 16:18:11,703 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 16:18:11,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2019-09-16 16:18:11,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 74. [2019-09-16 16:18:11,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-09-16 16:18:11,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 90 transitions. [2019-09-16 16:18:11,714 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 90 transitions. Word has length 23 [2019-09-16 16:18:11,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 16:18:11,714 INFO L475 AbstractCegarLoop]: Abstraction has 74 states and 90 transitions. [2019-09-16 16:18:11,715 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 16:18:11,715 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 90 transitions. [2019-09-16 16:18:11,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-09-16 16:18:11,716 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 16:18:11,717 INFO L407 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 16:18:11,717 INFO L418 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 16:18:11,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 16:18:11,717 INFO L82 PathProgramCache]: Analyzing trace with hash 1155086362, now seen corresponding path program 1 times [2019-09-16 16:18:11,718 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 16:18:11,718 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 16:18:11,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:18:11,719 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 16:18:11,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:18:11,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 16:18:11,758 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-09-16 16:18:11,759 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 16:18:11,759 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 16:18:11,760 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 16:18:11,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 16:18:11,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 16:18:11,761 INFO L87 Difference]: Start difference. First operand 74 states and 90 transitions. Second operand 3 states. [2019-09-16 16:18:11,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 16:18:11,777 INFO L93 Difference]: Finished difference Result 124 states and 147 transitions. [2019-09-16 16:18:11,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 16:18:11,778 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2019-09-16 16:18:11,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 16:18:11,779 INFO L225 Difference]: With dead ends: 124 [2019-09-16 16:18:11,779 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 16:18:11,780 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 16:18:11,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 16:18:11,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 16:18:11,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 16:18:11,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 16:18:11,781 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2019-09-16 16:18:11,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 16:18:11,782 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 16:18:11,782 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 16:18:11,782 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 16:18:11,782 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 16:18:11,787 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-09-16 16:18:11,946 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-09-16 16:18:11,947 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-09-16 16:18:11,947 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-09-16 16:18:11,947 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-09-16 16:18:11,947 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-09-16 16:18:11,947 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-09-16 16:18:11,948 INFO L439 ceAbstractionStarter]: At program point L97(lines 9 141) the Hoare annotation is: false [2019-09-16 16:18:11,948 INFO L439 ceAbstractionStarter]: At program point L31(lines 30 125) the Hoare annotation is: (<= main_~blastFlag~0 2) [2019-09-16 16:18:11,948 INFO L443 ceAbstractionStarter]: For program point L93-1(lines 54 107) no Hoare annotation was computed. [2019-09-16 16:18:11,948 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 9 141) no Hoare annotation was computed. [2019-09-16 16:18:11,948 INFO L443 ceAbstractionStarter]: For program point L89-1(lines 54 107) no Hoare annotation was computed. [2019-09-16 16:18:11,949 INFO L443 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2019-09-16 16:18:11,950 INFO L443 ceAbstractionStarter]: For program point L78-1(lines 54 107) no Hoare annotation was computed. [2019-09-16 16:18:11,950 INFO L443 ceAbstractionStarter]: For program point L70(lines 70 74) no Hoare annotation was computed. [2019-09-16 16:18:11,951 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 139) no Hoare annotation was computed. [2019-09-16 16:18:11,951 INFO L443 ceAbstractionStarter]: For program point L25(lines 25 128) no Hoare annotation was computed. [2019-09-16 16:18:11,954 INFO L443 ceAbstractionStarter]: For program point L58-1(lines 54 107) no Hoare annotation was computed. [2019-09-16 16:18:11,954 INFO L443 ceAbstractionStarter]: For program point L50(lines 50 109) no Hoare annotation was computed. [2019-09-16 16:18:11,954 INFO L443 ceAbstractionStarter]: For program point L46(lines 46 111) no Hoare annotation was computed. [2019-09-16 16:18:11,954 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 9 141) no Hoare annotation was computed. [2019-09-16 16:18:11,955 INFO L446 ceAbstractionStarter]: At program point L137(lines 9 141) the Hoare annotation is: true [2019-09-16 16:18:11,955 INFO L439 ceAbstractionStarter]: At program point L100(lines 18 135) the Hoare annotation is: (or (and (<= 8640 main_~s__state~0) (<= main_~blastFlag~0 3) (not (= 0 main_~s__hit~0))) (<= main_~blastFlag~0 2)) [2019-09-16 16:18:11,955 INFO L443 ceAbstractionStarter]: For program point L96(lines 96 98) no Hoare annotation was computed. [2019-09-16 16:18:11,955 INFO L443 ceAbstractionStarter]: For program point L30(lines 30 125) no Hoare annotation was computed. [2019-09-16 16:18:11,955 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 9 141) the Hoare annotation is: true [2019-09-16 16:18:11,956 INFO L439 ceAbstractionStarter]: At program point L26(lines 25 128) the Hoare annotation is: (<= main_~blastFlag~0 2) [2019-09-16 16:18:11,956 INFO L439 ceAbstractionStarter]: At program point L51(lines 50 109) the Hoare annotation is: (let ((.cse0 (<= 8656 main_~s__state~0))) (or (and .cse0 (<= main_~blastFlag~0 2)) (and .cse0 (<= main_~blastFlag~0 3) (not (= 0 main_~s__hit~0))))) [2019-09-16 16:18:11,961 INFO L439 ceAbstractionStarter]: At program point L47(lines 46 111) the Hoare annotation is: (let ((.cse0 (<= 8640 main_~s__state~0))) (or (and .cse0 (<= main_~blastFlag~0 3) (not (= 0 main_~s__hit~0))) (and .cse0 (<= main_~blastFlag~0 2)))) [2019-09-16 16:18:11,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 04:18:11 BoogieIcfgContainer [2019-09-16 16:18:11,985 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 16:18:11,989 INFO L168 Benchmark]: Toolchain (without parser) took 2002.26 ms. Allocated memory was 130.5 MB in the beginning and 198.2 MB in the end (delta: 67.6 MB). Free memory was 86.8 MB in the beginning and 72.1 MB in the end (delta: 14.7 MB). Peak memory consumption was 82.3 MB. Max. memory is 7.1 GB. [2019-09-16 16:18:11,991 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 130.5 MB. Free memory was 104.9 MB in the beginning and 104.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 16:18:11,992 INFO L168 Benchmark]: CACSL2BoogieTranslator took 347.82 ms. Allocated memory is still 130.5 MB. Free memory was 86.6 MB in the beginning and 76.5 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2019-09-16 16:18:11,994 INFO L168 Benchmark]: Boogie Preprocessor took 143.51 ms. Allocated memory was 130.5 MB in the beginning and 198.2 MB in the end (delta: 67.6 MB). Free memory was 76.5 MB in the beginning and 173.8 MB in the end (delta: -97.4 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. [2019-09-16 16:18:11,996 INFO L168 Benchmark]: RCFGBuilder took 347.76 ms. Allocated memory is still 198.2 MB. Free memory was 173.8 MB in the beginning and 159.6 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. [2019-09-16 16:18:11,997 INFO L168 Benchmark]: TraceAbstraction took 1158.96 ms. Allocated memory is still 198.2 MB. Free memory was 159.6 MB in the beginning and 72.1 MB in the end (delta: 87.5 MB). Peak memory consumption was 87.5 MB. Max. memory is 7.1 GB. [2019-09-16 16:18:12,006 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 130.5 MB. Free memory was 104.9 MB in the beginning and 104.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 347.82 ms. Allocated memory is still 130.5 MB. Free memory was 86.6 MB in the beginning and 76.5 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 143.51 ms. Allocated memory was 130.5 MB in the beginning and 198.2 MB in the end (delta: 67.6 MB). Free memory was 76.5 MB in the beginning and 173.8 MB in the end (delta: -97.4 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 347.76 ms. Allocated memory is still 198.2 MB. Free memory was 173.8 MB in the beginning and 159.6 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1158.96 ms. Allocated memory is still 198.2 MB. Free memory was 159.6 MB in the beginning and 72.1 MB in the end (delta: 87.5 MB). Peak memory consumption was 87.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 139]: 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: 9]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: (8656 <= s__state && blastFlag <= 2) || ((8656 <= s__state && blastFlag <= 3) && !(0 == s__hit)) - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: ((8640 <= s__state && blastFlag <= 3) && !(0 == s__hit)) || blastFlag <= 2 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: ((8640 <= s__state && blastFlag <= 3) && !(0 == s__hit)) || (8640 <= s__state && blastFlag <= 2) - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: blastFlag <= 2 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 28 locations, 1 error locations. SAFE Result, 1.0s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 184 SDtfs, 92 SDslu, 109 SDs, 0 SdLazy, 95 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=91occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 8 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 34 NumberOfFragments, 65 HoareAnnotationTreeSize, 11 FomulaSimplifications, 175 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 24 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 4626 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 42/42 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...