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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/loop-lit/cggmp2005.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:02:37,888 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:02:37,890 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:02:37,916 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:02:37,916 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:02:37,919 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:02:37,922 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:02:37,932 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:02:37,934 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:02:37,939 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:02:37,940 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:02:37,945 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:02:37,945 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:02:37,949 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:02:37,951 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:02:37,953 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:02:37,954 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:02:37,955 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:02:37,959 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:02:37,964 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:02:37,966 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:02:37,968 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:02:37,969 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:02:37,970 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:02:37,975 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:02:37,975 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:02:37,975 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:02:37,977 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:02:37,978 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:02:37,980 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:02:37,981 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:02:37,982 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:02:37,983 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:02:37,984 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:02:37,988 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:02:37,988 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:02:37,989 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:02:37,989 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:02:37,989 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:02:37,991 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:02:37,995 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:02:37,995 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 [2019-10-15 03:02:38,015 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:02:38,015 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:02:38,018 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:02:38,018 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:02:38,018 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:02:38,019 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:02:38,019 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:02:38,019 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:02:38,019 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:02:38,019 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:02:38,020 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:02:38,020 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:02:38,020 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:02:38,020 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:02:38,020 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:02:38,021 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:02:38,021 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:02:38,021 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:02:38,021 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:02:38,022 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:02:38,022 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:02:38,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:02:38,023 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:02:38,023 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:02:38,023 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:02:38,023 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:02:38,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:02:38,026 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:02:38,027 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 03:02:38,314 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:02:38,341 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:02:38,345 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:02:38,347 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:02:38,348 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:02:38,348 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/cggmp2005.i [2019-10-15 03:02:38,433 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc18cbd8e/6f47093bf33241288f0ce25fe34e785e/FLAGc4524d0be [2019-10-15 03:02:38,956 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:02:38,957 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/cggmp2005.i [2019-10-15 03:02:38,966 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc18cbd8e/6f47093bf33241288f0ce25fe34e785e/FLAGc4524d0be [2019-10-15 03:02:39,352 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc18cbd8e/6f47093bf33241288f0ce25fe34e785e [2019-10-15 03:02:39,365 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:02:39,366 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:02:39,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:02:39,368 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:02:39,371 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:02:39,373 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:02:39" (1/1) ... [2019-10-15 03:02:39,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bd72950 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:02:39, skipping insertion in model container [2019-10-15 03:02:39,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:02:39" (1/1) ... [2019-10-15 03:02:39,384 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:02:39,402 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:02:39,567 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:02:39,572 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:02:39,585 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:02:39,597 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:02:39,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:02:39 WrapperNode [2019-10-15 03:02:39,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:02:39,599 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:02:39,599 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:02:39,599 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:02:39,700 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:02:39" (1/1) ... [2019-10-15 03:02:39,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:02:39" (1/1) ... [2019-10-15 03:02:39,706 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:02:39" (1/1) ... [2019-10-15 03:02:39,706 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:02:39" (1/1) ... [2019-10-15 03:02:39,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:02:39" (1/1) ... [2019-10-15 03:02:39,716 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:02:39" (1/1) ... [2019-10-15 03:02:39,716 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:02:39" (1/1) ... [2019-10-15 03:02:39,718 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:02:39,718 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:02:39,719 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:02:39,719 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:02:39,720 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:02:39" (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 [2019-10-15 03:02:39,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:02:39,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:02:39,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-15 03:02:39,774 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:02:39,774 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:02:39,774 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-15 03:02:39,774 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-15 03:02:39,774 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:02:39,775 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:02:39,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:02:39,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:02:39,954 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:02:39,954 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-15 03:02:39,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:02:39 BoogieIcfgContainer [2019-10-15 03:02:39,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:02:39,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:02:39,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:02:39,960 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:02:39,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:02:39" (1/3) ... [2019-10-15 03:02:39,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51bbd7ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:02:39, skipping insertion in model container [2019-10-15 03:02:39,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:02:39" (2/3) ... [2019-10-15 03:02:39,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51bbd7ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:02:39, skipping insertion in model container [2019-10-15 03:02:39,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:02:39" (3/3) ... [2019-10-15 03:02:39,965 INFO L109 eAbstractionObserver]: Analyzing ICFG cggmp2005.i [2019-10-15 03:02:39,976 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:02:39,983 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:02:39,993 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:02:40,018 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:02:40,018 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:02:40,019 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:02:40,019 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:02:40,019 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:02:40,019 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:02:40,019 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:02:40,020 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:02:40,037 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-10-15 03:02:40,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-15 03:02:40,042 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:02:40,043 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:02:40,044 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:02:40,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:02:40,050 INFO L82 PathProgramCache]: Analyzing trace with hash 9943896, now seen corresponding path program 1 times [2019-10-15 03:02:40,058 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:02:40,058 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943356105] [2019-10-15 03:02:40,059 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:02:40,059 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:02:40,059 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:02:40,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:02:40,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:02:40,208 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943356105] [2019-10-15 03:02:40,209 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:02:40,209 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:02:40,209 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737123849] [2019-10-15 03:02:40,214 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:02:40,214 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:02:40,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:02:40,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:02:40,232 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 3 states. [2019-10-15 03:02:40,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:02:40,294 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2019-10-15 03:02:40,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:02:40,297 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-10-15 03:02:40,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:02:40,309 INFO L225 Difference]: With dead ends: 29 [2019-10-15 03:02:40,309 INFO L226 Difference]: Without dead ends: 12 [2019-10-15 03:02:40,317 INFO L600 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 [2019-10-15 03:02:40,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-10-15 03:02:40,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-10-15 03:02:40,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-10-15 03:02:40,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-10-15 03:02:40,373 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2019-10-15 03:02:40,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:02:40,374 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-10-15 03:02:40,375 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:02:40,377 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-10-15 03:02:40,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-15 03:02:40,378 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:02:40,379 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:02:40,379 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:02:40,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:02:40,382 INFO L82 PathProgramCache]: Analyzing trace with hash -404253491, now seen corresponding path program 1 times [2019-10-15 03:02:40,383 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:02:40,383 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353117669] [2019-10-15 03:02:40,383 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:02:40,383 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:02:40,383 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:02:40,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:02:40,534 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:02:40,534 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353117669] [2019-10-15 03:02:40,535 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1677801205] [2019-10-15 03:02:40,535 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:02:40,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:02:40,630 INFO L256 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-15 03:02:40,636 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:02:40,721 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:02:40,722 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:02:40,777 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:02:40,778 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1690650772] [2019-10-15 03:02:40,807 INFO L162 IcfgInterpreter]: Started Sifa with 11 locations of interest [2019-10-15 03:02:40,808 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:02:40,816 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:02:40,826 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:02:40,827 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 03:02:40,891 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1 for LOIs [2019-10-15 03:02:41,148 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 6 for LOIs [2019-10-15 03:02:41,205 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 1 for LOIs [2019-10-15 03:02:41,210 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-15 03:02:41,439 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-15 03:02:41,440 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 6] total 13 [2019-10-15 03:02:41,440 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915220069] [2019-10-15 03:02:41,445 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-15 03:02:41,446 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:02:41,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-15 03:02:41,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2019-10-15 03:02:41,447 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 13 states. [2019-10-15 03:02:41,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:02:41,633 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2019-10-15 03:02:41,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-15 03:02:41,634 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 11 [2019-10-15 03:02:41,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:02:41,635 INFO L225 Difference]: With dead ends: 20 [2019-10-15 03:02:41,636 INFO L226 Difference]: Without dead ends: 15 [2019-10-15 03:02:41,638 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2019-10-15 03:02:41,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-10-15 03:02:41,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-10-15 03:02:41,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-10-15 03:02:41,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2019-10-15 03:02:41,653 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2019-10-15 03:02:41,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:02:41,655 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2019-10-15 03:02:41,655 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-15 03:02:41,655 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2019-10-15 03:02:41,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-15 03:02:41,656 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:02:41,658 INFO L380 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:02:41,871 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:02:41,873 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:02:41,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:02:41,874 INFO L82 PathProgramCache]: Analyzing trace with hash 1115484312, now seen corresponding path program 2 times [2019-10-15 03:02:41,875 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:02:41,876 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902155188] [2019-10-15 03:02:41,876 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:02:41,877 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:02:41,877 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:02:41,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:02:42,035 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:02:42,035 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902155188] [2019-10-15 03:02:42,036 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562532758] [2019-10-15 03:02:42,036 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:02:42,087 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-10-15 03:02:42,088 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-15 03:02:42,089 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 16 conjunts are in the unsatisfiable core [2019-10-15 03:02:42,093 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:02:42,182 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:02:42,182 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:02:42,212 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:02:42,212 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1075990908] [2019-10-15 03:02:42,215 INFO L162 IcfgInterpreter]: Started Sifa with 11 locations of interest [2019-10-15 03:02:42,215 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:02:42,216 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:02:42,216 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:02:42,217 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 03:02:42,240 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1 for LOIs [2019-10-15 03:02:42,363 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 6 for LOIs [2019-10-15 03:02:42,406 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 1 for LOIs [2019-10-15 03:02:42,409 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-15 03:02:42,566 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-15 03:02:42,566 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 6] total 16 [2019-10-15 03:02:42,567 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954475337] [2019-10-15 03:02:42,568 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-15 03:02:42,568 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:02:42,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-15 03:02:42,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2019-10-15 03:02:42,569 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 16 states. [2019-10-15 03:02:43,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:02:43,009 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2019-10-15 03:02:43,014 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-15 03:02:43,016 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 14 [2019-10-15 03:02:43,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:02:43,020 INFO L225 Difference]: With dead ends: 21 [2019-10-15 03:02:43,021 INFO L226 Difference]: Without dead ends: 16 [2019-10-15 03:02:43,023 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 34 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=70, Invalid=436, Unknown=0, NotChecked=0, Total=506 [2019-10-15 03:02:43,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-10-15 03:02:43,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-10-15 03:02:43,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-10-15 03:02:43,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2019-10-15 03:02:43,054 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14 [2019-10-15 03:02:43,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:02:43,055 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2019-10-15 03:02:43,055 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-15 03:02:43,055 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2019-10-15 03:02:43,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-15 03:02:43,056 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:02:43,056 INFO L380 BasicCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:02:43,260 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:02:43,261 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:02:43,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:02:43,261 INFO L82 PathProgramCache]: Analyzing trace with hash -492238963, now seen corresponding path program 3 times [2019-10-15 03:02:43,262 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:02:43,262 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221076589] [2019-10-15 03:02:43,263 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:02:43,263 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:02:43,263 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:02:43,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:02:43,427 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:02:43,428 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221076589] [2019-10-15 03:02:43,428 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:02:43,428 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:02:43,429 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471741280] [2019-10-15 03:02:43,429 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:02:43,430 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:02:43,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:02:43,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:02:43,430 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 7 states. [2019-10-15 03:02:43,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:02:43,456 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2019-10-15 03:02:43,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 03:02:43,457 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2019-10-15 03:02:43,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:02:43,459 INFO L225 Difference]: With dead ends: 16 [2019-10-15 03:02:43,460 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 03:02:43,463 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:02:43,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 03:02:43,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 03:02:43,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 03:02:43,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 03:02:43,466 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-10-15 03:02:43,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:02:43,467 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 03:02:43,467 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:02:43,467 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 03:02:43,467 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 03:02:43,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 03:02:43,727 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2019-10-15 03:02:43,733 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-10-15 03:02:43,733 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 03:02:43,734 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 03:02:43,734 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-15 03:02:43,734 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 03:02:43,734 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 03:02:43,734 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 10 20) the Hoare annotation is: true [2019-10-15 03:02:43,734 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 10 20) no Hoare annotation was computed. [2019-10-15 03:02:43,734 INFO L443 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2019-10-15 03:02:43,735 INFO L439 ceAbstractionStarter]: At program point L14-2(lines 14 17) the Hoare annotation is: (or (and (<= main_~j~0 (+ main_~i~0 9)) (<= main_~i~0 1) (<= 10 main_~j~0)) (and (<= 6 main_~j~0) (<= (+ main_~j~0 3) main_~i~0) (<= main_~j~0 6)) (and (<= main_~i~0 3) (<= main_~j~0 (+ main_~i~0 6)) (<= 9 main_~j~0)) (and (<= 7 main_~j~0) (<= main_~j~0 main_~i~0) (<= main_~j~0 7) (<= main_~i~0 main_~j~0)) (and (<= 8 main_~j~0) (<= main_~j~0 8) (<= main_~j~0 (+ main_~i~0 3)) (< (+ main_~i~0 2) main_~j~0))) [2019-10-15 03:02:43,735 INFO L439 ceAbstractionStarter]: At program point L14-3(lines 14 17) the Hoare annotation is: (and (<= 6 main_~j~0) (< main_~j~0 main_~i~0) (<= main_~j~0 6)) [2019-10-15 03:02:43,735 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-10-15 03:02:43,735 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-10-15 03:02:43,735 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-15 03:02:43,736 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-10-15 03:02:43,736 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-10-15 03:02:43,736 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-10-15 03:02:43,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 03:02:43 BoogieIcfgContainer [2019-10-15 03:02:43,756 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 03:02:43,758 INFO L168 Benchmark]: Toolchain (without parser) took 4391.61 ms. Allocated memory was 138.9 MB in the beginning and 244.3 MB in the end (delta: 105.4 MB). Free memory was 102.5 MB in the beginning and 215.4 MB in the end (delta: -112.9 MB). Peak memory consumption was 115.6 MB. Max. memory is 7.1 GB. [2019-10-15 03:02:43,759 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 138.9 MB. Free memory was 121.0 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-15 03:02:43,760 INFO L168 Benchmark]: CACSL2BoogieTranslator took 231.14 ms. Allocated memory is still 138.9 MB. Free memory was 102.3 MB in the beginning and 93.1 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-10-15 03:02:43,764 INFO L168 Benchmark]: Boogie Preprocessor took 119.15 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 93.1 MB in the beginning and 182.3 MB in the end (delta: -89.2 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2019-10-15 03:02:43,765 INFO L168 Benchmark]: RCFGBuilder took 237.33 ms. Allocated memory is still 203.4 MB. Free memory was 182.3 MB in the beginning and 171.1 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. [2019-10-15 03:02:43,769 INFO L168 Benchmark]: TraceAbstraction took 3799.33 ms. Allocated memory was 203.4 MB in the beginning and 244.3 MB in the end (delta: 40.9 MB). Free memory was 171.1 MB in the beginning and 215.4 MB in the end (delta: -44.3 MB). Peak memory consumption was 119.7 MB. Max. memory is 7.1 GB. [2019-10-15 03:02:43,779 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 138.9 MB. Free memory was 121.0 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 231.14 ms. Allocated memory is still 138.9 MB. Free memory was 102.3 MB in the beginning and 93.1 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.15 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 93.1 MB in the beginning and 182.3 MB in the end (delta: -89.2 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 237.33 ms. Allocated memory is still 203.4 MB. Free memory was 182.3 MB in the beginning and 171.1 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3799.33 ms. Allocated memory was 203.4 MB in the beginning and 244.3 MB in the end (delta: 40.9 MB). Free memory was 171.1 MB in the beginning and 215.4 MB in the end (delta: -44.3 MB). Peak memory consumption was 119.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 14]: Loop Invariant Derived loop invariant: (((((j <= i + 9 && i <= 1) && 10 <= j) || ((6 <= j && j + 3 <= i) && j <= 6)) || ((i <= 3 && j <= i + 6) && 9 <= j)) || (((7 <= j && j <= i) && j <= 7) && i <= j)) || (((8 <= j && j <= 8) && j <= i + 3) && i + 2 < j) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. Result: SAFE, OverallTime: 3.7s, OverallIterations: 4, TraceHistogramMax: 5, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 35 SDtfs, 16 SDslu, 100 SDs, 0 SdLazy, 117 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 107 GetRequests, 63 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 10 PreInvPairs, 16 NumberOfFragments, 82 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 44 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 3244 SizeOfPredicates, 4 NumberOfNonLiveVariables, 73 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 15/48 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: OVERALL_TIME[ms]: 597, ICFG_INTERPRETER_ENTERED_PROCEDURES: 8, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 42, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 20, TOOLS_POST_TIME[ms]: 28, TOOLS_POST_CALL_APPLICATIONS: 10, TOOLS_POST_CALL_TIME[ms]: 19, TOOLS_POST_RETURN_APPLICATIONS: 4, TOOLS_POST_RETURN_TIME[ms]: 1, TOOLS_QUANTIFIERELIM_APPLICATIONS: 34, TOOLS_QUANTIFIERELIM_TIME[ms]: 34, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 11, FLUID_QUERY_TIME[ms]: 5, FLUID_QUERIES: 48, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 36, DOMAIN_JOIN_TIME[ms]: 310, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 4, DOMAIN_WIDEN_TIME[ms]: 118, DOMAIN_ISSUBSETEQ_APPLICATIONS: 6, DOMAIN_ISSUBSETEQ_TIME[ms]: 18, DOMAIN_ISBOTTOM_APPLICATIONS: 2, DOMAIN_ISBOTTOM_TIME[ms]: 4, LOOP_SUMMARIZER_APPLICATIONS: 2, LOOP_SUMMARIZER_CACHE_MISSES: 2, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 281, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 280, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 6, CALL_SUMMARIZER_APPLICATIONS: 4, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME[ms]: 12, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 12, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 6, PATH_EXPR_TIME[ms]: 4, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 25, DAG_COMPRESSION_PROCESSED_NODES: 114, DAG_COMPRESSION_RETAINED_NODES: 84, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...