/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec27_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 04:58:18,404 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 04:58:18,407 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 04:58:18,421 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 04:58:18,421 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 04:58:18,424 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 04:58:18,426 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 04:58:18,435 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 04:58:18,438 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 04:58:18,439 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 04:58:18,440 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 04:58:18,442 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 04:58:18,443 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 04:58:18,444 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 04:58:18,446 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 04:58:18,448 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 04:58:18,449 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 04:58:18,453 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 04:58:18,454 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 04:58:18,458 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 04:58:18,462 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 04:58:18,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 04:58:18,464 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 04:58:18,464 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 04:58:18,469 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-24 04:58:18,475 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 04:58:18,476 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 04:58:18,477 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 04:58:18,479 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 04:58:18,480 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 04:58:18,481 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 04:58:18,481 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 04:58:18,481 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 04:58:18,482 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 04:58:18,484 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 04:58:18,485 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 04:58:18,486 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-24 04:58:18,519 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 04:58:18,519 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 04:58:18,522 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 04:58:18,523 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 04:58:18,523 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 04:58:18,523 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 04:58:18,523 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 04:58:18,523 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 04:58:18,524 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 04:58:18,524 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 04:58:18,524 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 04:58:18,524 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 04:58:18,524 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 04:58:18,525 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 04:58:18,525 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 04:58:18,525 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 04:58:18,526 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 04:58:18,526 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 04:58:18,526 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 04:58:18,526 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 04:58:18,526 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 04:58:18,527 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 04:58:18,527 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 04:58:18,529 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 04:58:18,529 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 04:58:18,529 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 04:58:18,529 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 04:58:18,529 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 04:58:18,530 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 04:58:18,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 04:58:18,530 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 04:58:18,531 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 04:58:18,531 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 04:58:18,531 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 04:58:18,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 04:58:18,531 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 04:58:18,531 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 04:58:18,533 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 04:58:18,806 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 04:58:18,820 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 04:58:18,823 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 04:58:18,825 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 04:58:18,825 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 04:58:18,826 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product35.cil.c [2019-11-24 04:58:18,903 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65e89c345/77126ccc7b054159903d83b20d7088c3/FLAGf11156e7f [2019-11-24 04:58:19,546 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 04:58:19,546 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product35.cil.c [2019-11-24 04:58:19,579 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65e89c345/77126ccc7b054159903d83b20d7088c3/FLAGf11156e7f [2019-11-24 04:58:19,740 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65e89c345/77126ccc7b054159903d83b20d7088c3 [2019-11-24 04:58:19,747 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 04:58:19,749 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 04:58:19,750 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 04:58:19,751 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 04:58:19,755 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 04:58:19,756 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:58:19" (1/1) ... [2019-11-24 04:58:19,761 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c4503ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:58:19, skipping insertion in model container [2019-11-24 04:58:19,761 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:58:19" (1/1) ... [2019-11-24 04:58:19,771 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 04:58:19,844 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 04:58:20,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 04:58:20,641 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 04:58:20,775 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 04:58:20,889 INFO L208 MainTranslator]: Completed translation [2019-11-24 04:58:20,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:58:20 WrapperNode [2019-11-24 04:58:20,889 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 04:58:20,891 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 04:58:20,891 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 04:58:20,891 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 04:58:20,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:58:20" (1/1) ... [2019-11-24 04:58:20,974 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:58:20" (1/1) ... [2019-11-24 04:58:21,172 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 04:58:21,172 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 04:58:21,173 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 04:58:21,173 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 04:58:21,183 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:58:20" (1/1) ... [2019-11-24 04:58:21,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:58:20" (1/1) ... [2019-11-24 04:58:21,214 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:58:20" (1/1) ... [2019-11-24 04:58:21,215 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:58:20" (1/1) ... [2019-11-24 04:58:21,290 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:58:20" (1/1) ... [2019-11-24 04:58:21,331 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:58:20" (1/1) ... [2019-11-24 04:58:21,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:58:20" (1/1) ... [2019-11-24 04:58:21,446 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 04:58:21,448 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 04:58:21,448 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 04:58:21,448 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 04:58:21,449 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:58:20" (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 [2019-11-24 04:58:21,529 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-24 04:58:21,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 04:58:21,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-24 04:58:21,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 04:58:21,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 04:58:46,402 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 04:58:46,402 INFO L284 CfgBuilder]: Removed 937 assume(true) statements. [2019-11-24 04:58:46,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:58:46 BoogieIcfgContainer [2019-11-24 04:58:46,409 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 04:58:46,412 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 04:58:46,412 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 04:58:46,415 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 04:58:46,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 04:58:19" (1/3) ... [2019-11-24 04:58:46,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41c6e74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 04:58:46, skipping insertion in model container [2019-11-24 04:58:46,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:58:20" (2/3) ... [2019-11-24 04:58:46,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41c6e74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 04:58:46, skipping insertion in model container [2019-11-24 04:58:46,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:58:46" (3/3) ... [2019-11-24 04:58:46,425 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product35.cil.c [2019-11-24 04:58:46,434 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 04:58:46,442 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-11-24 04:58:46,456 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-11-24 04:58:46,487 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 04:58:46,487 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 04:58:46,487 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 04:58:46,487 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 04:58:46,487 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 04:58:46,487 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 04:58:46,488 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 04:58:46,488 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 04:58:46,511 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states. [2019-11-24 04:58:46,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-24 04:58:46,521 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 04:58:46,522 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 04:58:46,522 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 04:58:46,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 04:58:46,528 INFO L82 PathProgramCache]: Analyzing trace with hash -271404960, now seen corresponding path program 1 times [2019-11-24 04:58:46,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 04:58:46,539 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080961950] [2019-11-24 04:58:46,540 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 04:58:46,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 04:58:46,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 04:58:46,985 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080961950] [2019-11-24 04:58:46,986 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 04:58:46,987 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-24 04:58:46,988 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532959800] [2019-11-24 04:58:46,993 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-24 04:58:46,994 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 04:58:47,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-24 04:58:47,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-24 04:58:47,013 INFO L87 Difference]: Start difference. First operand 63 states. Second operand 2 states. [2019-11-24 04:58:47,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 04:58:47,061 INFO L93 Difference]: Finished difference Result 100 states and 153 transitions. [2019-11-24 04:58:47,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-24 04:58:47,063 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-11-24 04:58:47,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 04:58:47,083 INFO L225 Difference]: With dead ends: 100 [2019-11-24 04:58:47,083 INFO L226 Difference]: Without dead ends: 59 [2019-11-24 04:58:47,089 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-24 04:58:47,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2019-11-24 04:58:47,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2019-11-24 04:58:47,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-11-24 04:58:47,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 86 transitions. [2019-11-24 04:58:47,165 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 86 transitions. Word has length 8 [2019-11-24 04:58:47,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 04:58:47,165 INFO L462 AbstractCegarLoop]: Abstraction has 59 states and 86 transitions. [2019-11-24 04:58:47,165 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-24 04:58:47,166 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 86 transitions. [2019-11-24 04:58:47,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-24 04:58:47,167 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 04:58:47,167 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 04:58:47,168 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 04:58:47,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 04:58:47,168 INFO L82 PathProgramCache]: Analyzing trace with hash 2100123932, now seen corresponding path program 1 times [2019-11-24 04:58:47,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 04:58:47,169 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091517084] [2019-11-24 04:58:47,169 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 04:58:47,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 04:58:47,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 04:58:47,421 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091517084] [2019-11-24 04:58:47,422 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 04:58:47,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 04:58:47,424 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286013103] [2019-11-24 04:58:47,425 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 04:58:47,426 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 04:58:47,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 04:58:47,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 04:58:47,427 INFO L87 Difference]: Start difference. First operand 59 states and 86 transitions. Second operand 3 states. [2019-11-24 04:58:47,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 04:58:47,446 INFO L93 Difference]: Finished difference Result 94 states and 126 transitions. [2019-11-24 04:58:47,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 04:58:47,447 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-11-24 04:58:47,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 04:58:47,448 INFO L225 Difference]: With dead ends: 94 [2019-11-24 04:58:47,449 INFO L226 Difference]: Without dead ends: 61 [2019-11-24 04:58:47,450 INFO L630 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 [2019-11-24 04:58:47,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-11-24 04:58:47,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2019-11-24 04:58:47,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2019-11-24 04:58:47,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 88 transitions. [2019-11-24 04:58:47,465 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 88 transitions. Word has length 9 [2019-11-24 04:58:47,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 04:58:47,465 INFO L462 AbstractCegarLoop]: Abstraction has 61 states and 88 transitions. [2019-11-24 04:58:47,465 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 04:58:47,465 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 88 transitions. [2019-11-24 04:58:47,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-24 04:58:47,466 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 04:58:47,467 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 04:58:47,467 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 04:58:47,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 04:58:47,467 INFO L82 PathProgramCache]: Analyzing trace with hash 1336619695, now seen corresponding path program 1 times [2019-11-24 04:58:47,468 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 04:58:47,468 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207674123] [2019-11-24 04:58:47,468 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 04:58:47,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 04:58:47,721 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 04:58:47,722 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207674123] [2019-11-24 04:58:47,722 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59379540] [2019-11-24 04:58:47,723 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 [2019-11-24 04:58:48,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 04:58:48,345 INFO L255 TraceCheckSpWp]: Trace formula consists of 972 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-24 04:58:48,354 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-24 04:58:48,386 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 04:58:48,387 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-24 04:58:48,409 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 04:58:48,410 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [836295050] [2019-11-24 04:58:48,439 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2019-11-24 04:58:48,440 INFO L166 IcfgInterpreter]: Building call graph [2019-11-24 04:58:48,447 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-24 04:58:48,454 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-24 04:58:48,455 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs