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/locks/test_locks_5.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:00:52,025 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:00:52,028 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:00:52,047 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:00:52,047 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:00:52,049 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:00:52,051 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:00:52,062 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:00:52,068 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:00:52,070 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:00:52,071 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:00:52,072 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:00:52,073 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:00:52,075 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:00:52,078 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:00:52,079 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:00:52,081 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:00:52,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:00:52,083 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:00:52,088 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:00:52,092 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:00:52,095 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:00:52,098 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:00:52,099 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:00:52,101 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:00:52,101 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:00:52,102 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:00:52,103 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:00:52,105 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:00:52,105 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:00:52,106 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:00:52,107 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:00:52,108 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:00:52,109 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:00:52,111 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:00:52,111 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:00:52,112 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:00:52,112 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:00:52,112 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:00:52,113 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:00:52,115 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:00:52,115 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 03:00:52,149 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:00:52,150 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:00:52,151 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:00:52,151 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:00:52,151 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:00:52,152 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:00:52,152 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:00:52,155 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:00:52,155 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:00:52,155 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:00:52,156 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:00:52,156 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:00:52,156 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:00:52,156 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:00:52,156 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:00:52,157 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:00:52,157 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:00:52,157 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:00:52,158 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:00:52,158 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:00:52,159 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:00:52,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:00:52,159 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:00:52,159 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:00:52,160 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:00:52,160 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:00:52,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:00:52,160 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:00:52,161 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 03:00:52,463 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:00:52,479 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:00:52,483 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:00:52,485 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:00:52,485 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:00:52,486 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/locks/test_locks_5.c [2019-10-15 03:00:52,565 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/758c8da32/da2754c13c084091a7e4a4f9717b659f/FLAG241231e19 [2019-10-15 03:00:53,073 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:00:53,074 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/locks/test_locks_5.c [2019-10-15 03:00:53,083 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/758c8da32/da2754c13c084091a7e4a4f9717b659f/FLAG241231e19 [2019-10-15 03:00:53,475 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/758c8da32/da2754c13c084091a7e4a4f9717b659f [2019-10-15 03:00:53,486 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:00:53,488 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:00:53,493 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:00:53,493 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:00:53,497 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:00:53,498 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:00:53" (1/1) ... [2019-10-15 03:00:53,501 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71163d5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:53, skipping insertion in model container [2019-10-15 03:00:53,502 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:00:53" (1/1) ... [2019-10-15 03:00:53,511 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:00:53,534 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:00:53,758 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:00:53,762 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:00:53,780 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:00:53,792 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:00:53,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:53 WrapperNode [2019-10-15 03:00:53,792 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:00:53,793 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:00:53,793 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:00:53,793 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:00:53,885 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:53" (1/1) ... [2019-10-15 03:00:53,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:53" (1/1) ... [2019-10-15 03:00:53,890 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:53" (1/1) ... [2019-10-15 03:00:53,891 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:53" (1/1) ... [2019-10-15 03:00:53,895 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:53" (1/1) ... [2019-10-15 03:00:53,902 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:53" (1/1) ... [2019-10-15 03:00:53,903 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:53" (1/1) ... [2019-10-15 03:00:53,905 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:00:53,905 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:00:53,906 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:00:53,906 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:00:53,907 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:53" (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 03:00:53,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:00:53,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:00:53,959 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:00:53,959 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:00:53,959 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:00:53,959 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:00:53,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:00:53,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:00:54,377 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:00:54,377 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-15 03:00:54,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:00:54 BoogieIcfgContainer [2019-10-15 03:00:54,378 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:00:54,380 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:00:54,380 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:00:54,383 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:00:54,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:00:53" (1/3) ... [2019-10-15 03:00:54,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4640e2a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:00:54, skipping insertion in model container [2019-10-15 03:00:54,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:53" (2/3) ... [2019-10-15 03:00:54,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4640e2a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:00:54, skipping insertion in model container [2019-10-15 03:00:54,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:00:54" (3/3) ... [2019-10-15 03:00:54,387 INFO L109 eAbstractionObserver]: Analyzing ICFG test_locks_5.c [2019-10-15 03:00:54,401 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:00:54,410 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:00:54,422 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:00:54,447 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:00:54,447 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:00:54,447 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:00:54,447 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:00:54,448 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:00:54,448 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:00:54,448 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:00:54,448 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:00:54,466 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2019-10-15 03:00:54,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-15 03:00:54,470 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:00:54,472 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:00:54,473 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:00:54,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:00:54,478 INFO L82 PathProgramCache]: Analyzing trace with hash 1420080456, now seen corresponding path program 1 times [2019-10-15 03:00:54,487 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:00:54,487 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879749187] [2019-10-15 03:00:54,487 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:00:54,488 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:00:54,488 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:00:54,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:00:54,671 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 03:00:54,672 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879749187] [2019-10-15 03:00:54,672 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:00:54,673 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 03:00:54,674 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568317750] [2019-10-15 03:00:54,679 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 03:00:54,679 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:00:54,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 03:00:54,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 03:00:54,697 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 4 states. [2019-10-15 03:00:54,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:00:54,758 INFO L93 Difference]: Finished difference Result 46 states and 66 transitions. [2019-10-15 03:00:54,759 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 03:00:54,760 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-10-15 03:00:54,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:00:54,771 INFO L225 Difference]: With dead ends: 46 [2019-10-15 03:00:54,771 INFO L226 Difference]: Without dead ends: 31 [2019-10-15 03:00:54,774 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 03:00:54,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-10-15 03:00:54,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 19. [2019-10-15 03:00:54,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-10-15 03:00:54,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 27 transitions. [2019-10-15 03:00:54,813 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 27 transitions. Word has length 10 [2019-10-15 03:00:54,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:00:54,814 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 27 transitions. [2019-10-15 03:00:54,814 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 03:00:54,814 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 27 transitions. [2019-10-15 03:00:54,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-15 03:00:54,815 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:00:54,815 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:00:54,815 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:00:54,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:00:54,816 INFO L82 PathProgramCache]: Analyzing trace with hash 1073036176, now seen corresponding path program 1 times [2019-10-15 03:00:54,816 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:00:54,816 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970915151] [2019-10-15 03:00:54,817 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:00:54,817 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:00:54,817 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:00:54,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:00:54,888 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 03:00:54,889 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970915151] [2019-10-15 03:00:54,889 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:00:54,889 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 03:00:54,890 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131313233] [2019-10-15 03:00:54,891 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 03:00:54,892 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:00:54,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 03:00:54,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 03:00:54,893 INFO L87 Difference]: Start difference. First operand 19 states and 27 transitions. Second operand 4 states. [2019-10-15 03:00:54,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:00:54,917 INFO L93 Difference]: Finished difference Result 31 states and 43 transitions. [2019-10-15 03:00:54,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 03:00:54,918 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-10-15 03:00:54,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:00:54,919 INFO L225 Difference]: With dead ends: 31 [2019-10-15 03:00:54,919 INFO L226 Difference]: Without dead ends: 29 [2019-10-15 03:00:54,920 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 03:00:54,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-10-15 03:00:54,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 19. [2019-10-15 03:00:54,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-10-15 03:00:54,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 26 transitions. [2019-10-15 03:00:54,926 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 26 transitions. Word has length 11 [2019-10-15 03:00:54,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:00:54,926 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 26 transitions. [2019-10-15 03:00:54,927 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 03:00:54,927 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 26 transitions. [2019-10-15 03:00:54,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-15 03:00:54,928 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:00:54,928 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:00:54,928 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:00:54,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:00:54,929 INFO L82 PathProgramCache]: Analyzing trace with hash -1095401571, now seen corresponding path program 1 times [2019-10-15 03:00:54,929 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:00:54,929 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923887460] [2019-10-15 03:00:54,930 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:00:54,930 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:00:54,930 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:00:54,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:00:55,007 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 03:00:55,008 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923887460] [2019-10-15 03:00:55,008 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:00:55,009 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 03:00:55,009 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642931003] [2019-10-15 03:00:55,009 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 03:00:55,010 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:00:55,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 03:00:55,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 03:00:55,011 INFO L87 Difference]: Start difference. First operand 19 states and 26 transitions. Second operand 4 states. [2019-10-15 03:00:55,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:00:55,034 INFO L93 Difference]: Finished difference Result 29 states and 38 transitions. [2019-10-15 03:00:55,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 03:00:55,035 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-10-15 03:00:55,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:00:55,036 INFO L225 Difference]: With dead ends: 29 [2019-10-15 03:00:55,036 INFO L226 Difference]: Without dead ends: 27 [2019-10-15 03:00:55,037 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 03:00:55,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-10-15 03:00:55,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 19. [2019-10-15 03:00:55,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-10-15 03:00:55,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 25 transitions. [2019-10-15 03:00:55,042 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 25 transitions. Word has length 12 [2019-10-15 03:00:55,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:00:55,042 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 25 transitions. [2019-10-15 03:00:55,042 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 03:00:55,042 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2019-10-15 03:00:55,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-15 03:00:55,043 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:00:55,043 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:00:55,044 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:00:55,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:00:55,044 INFO L82 PathProgramCache]: Analyzing trace with hash 402505349, now seen corresponding path program 1 times [2019-10-15 03:00:55,045 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:00:55,045 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243346184] [2019-10-15 03:00:55,045 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:00:55,045 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:00:55,046 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:00:55,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:00:55,089 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 03:00:55,089 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243346184] [2019-10-15 03:00:55,090 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:00:55,090 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 03:00:55,090 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259460647] [2019-10-15 03:00:55,091 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 03:00:55,091 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:00:55,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 03:00:55,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 03:00:55,092 INFO L87 Difference]: Start difference. First operand 19 states and 25 transitions. Second operand 4 states. [2019-10-15 03:00:55,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:00:55,112 INFO L93 Difference]: Finished difference Result 27 states and 33 transitions. [2019-10-15 03:00:55,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 03:00:55,112 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-10-15 03:00:55,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:00:55,113 INFO L225 Difference]: With dead ends: 27 [2019-10-15 03:00:55,113 INFO L226 Difference]: Without dead ends: 25 [2019-10-15 03:00:55,114 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 03:00:55,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-10-15 03:00:55,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 19. [2019-10-15 03:00:55,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-10-15 03:00:55,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2019-10-15 03:00:55,118 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 24 transitions. Word has length 13 [2019-10-15 03:00:55,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:00:55,119 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 24 transitions. [2019-10-15 03:00:55,119 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 03:00:55,119 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2019-10-15 03:00:55,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-15 03:00:55,120 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:00:55,120 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:00:55,120 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:00:55,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:00:55,121 INFO L82 PathProgramCache]: Analyzing trace with hash -407020046, now seen corresponding path program 1 times [2019-10-15 03:00:55,121 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:00:55,121 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756721371] [2019-10-15 03:00:55,122 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:00:55,122 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:00:55,122 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:00:55,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:00:55,177 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 03:00:55,178 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756721371] [2019-10-15 03:00:55,178 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:00:55,178 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 03:00:55,178 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161838141] [2019-10-15 03:00:55,179 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 03:00:55,179 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:00:55,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 03:00:55,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 03:00:55,180 INFO L87 Difference]: Start difference. First operand 19 states and 24 transitions. Second operand 4 states. [2019-10-15 03:00:55,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:00:55,210 INFO L93 Difference]: Finished difference Result 21 states and 26 transitions. [2019-10-15 03:00:55,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 03:00:55,211 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-10-15 03:00:55,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:00:55,211 INFO L225 Difference]: With dead ends: 21 [2019-10-15 03:00:55,212 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 03:00:55,212 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 03:00:55,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 03:00:55,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 03:00:55,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 03:00:55,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 03:00:55,214 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2019-10-15 03:00:55,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:00:55,214 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 03:00:55,214 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 03:00:55,214 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 03:00:55,215 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 03:00:55,219 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 03:00:55,240 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-10-15 03:00:55,240 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 03:00:55,241 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 03:00:55,241 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-15 03:00:55,241 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 03:00:55,241 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 03:00:55,242 INFO L443 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2019-10-15 03:00:55,242 INFO L446 ceAbstractionStarter]: At program point L89(lines 5 93) the Hoare annotation is: true [2019-10-15 03:00:55,242 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 4 93) no Hoare annotation was computed. [2019-10-15 03:00:55,243 INFO L443 ceAbstractionStarter]: For program point L73-1(lines 24 88) no Hoare annotation was computed. [2019-10-15 03:00:55,243 INFO L443 ceAbstractionStarter]: For program point L69(line 69) no Hoare annotation was computed. [2019-10-15 03:00:55,243 INFO L443 ceAbstractionStarter]: For program point L57-1(lines 24 88) no Hoare annotation was computed. [2019-10-15 03:00:55,244 INFO L443 ceAbstractionStarter]: For program point L78-1(lines 24 88) no Hoare annotation was computed. [2019-10-15 03:00:55,244 INFO L443 ceAbstractionStarter]: For program point L74(line 74) no Hoare annotation was computed. [2019-10-15 03:00:55,244 INFO L446 ceAbstractionStarter]: At program point L83-1(lines 24 88) the Hoare annotation is: true [2019-10-15 03:00:55,244 INFO L443 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2019-10-15 03:00:55,244 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 4 93) no Hoare annotation was computed. [2019-10-15 03:00:55,244 INFO L443 ceAbstractionStarter]: For program point L63-1(lines 24 88) no Hoare annotation was computed. [2019-10-15 03:00:55,245 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 4 93) the Hoare annotation is: true [2019-10-15 03:00:55,245 INFO L443 ceAbstractionStarter]: For program point L26(lines 26 28) no Hoare annotation was computed. [2019-10-15 03:00:55,245 INFO L443 ceAbstractionStarter]: For program point L84(line 84) no Hoare annotation was computed. [2019-10-15 03:00:55,246 INFO L439 ceAbstractionStarter]: At program point L84-1(lines 5 93) the Hoare annotation is: false [2019-10-15 03:00:55,246 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 91) no Hoare annotation was computed. [2019-10-15 03:00:55,246 INFO L443 ceAbstractionStarter]: For program point L68-1(lines 24 88) no Hoare annotation was computed. [2019-10-15 03:00:55,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 03:00:55 BoogieIcfgContainer [2019-10-15 03:00:55,256 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 03:00:55,261 INFO L168 Benchmark]: Toolchain (without parser) took 1770.14 ms. Allocated memory was 137.9 MB in the beginning and 200.8 MB in the end (delta: 62.9 MB). Free memory was 102.2 MB in the beginning and 102.2 MB in the end (delta: -16.3 kB). Peak memory consumption was 62.9 MB. Max. memory is 7.1 GB. [2019-10-15 03:00:55,263 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-15 03:00:55,264 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.43 ms. Allocated memory is still 137.9 MB. Free memory was 101.9 MB in the beginning and 92.0 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-10-15 03:00:55,266 INFO L168 Benchmark]: Boogie Preprocessor took 112.01 ms. Allocated memory was 137.9 MB in the beginning and 200.8 MB in the end (delta: 62.9 MB). Free memory was 92.0 MB in the beginning and 178.6 MB in the end (delta: -86.6 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. [2019-10-15 03:00:55,272 INFO L168 Benchmark]: RCFGBuilder took 473.20 ms. Allocated memory is still 200.8 MB. Free memory was 178.6 MB in the beginning and 158.3 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2019-10-15 03:00:55,274 INFO L168 Benchmark]: TraceAbstraction took 876.78 ms. Allocated memory is still 200.8 MB. Free memory was 157.6 MB in the beginning and 102.2 MB in the end (delta: 55.5 MB). Peak memory consumption was 55.5 MB. Max. memory is 7.1 GB. [2019-10-15 03:00:55,286 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 299.43 ms. Allocated memory is still 137.9 MB. Free memory was 101.9 MB in the beginning and 92.0 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 112.01 ms. Allocated memory was 137.9 MB in the beginning and 200.8 MB in the end (delta: 62.9 MB). Free memory was 92.0 MB in the beginning and 178.6 MB in the end (delta: -86.6 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 473.20 ms. Allocated memory is still 200.8 MB. Free memory was 178.6 MB in the beginning and 158.3 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 876.78 ms. Allocated memory is still 200.8 MB. Free memory was 157.6 MB in the beginning and 102.2 MB in the end (delta: 55.5 MB). Peak memory consumption was 55.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 91]: 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: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 24 locations, 1 error locations. Result: SAFE, OverallTime: 0.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 123 SDtfs, 82 SDslu, 157 SDs, 0 SdLazy, 45 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, 5 MinimizatonAttempts, 36 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 10 NumberOfFragments, 7 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 1775 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...