/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/elevator_spec3_product19.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 04:44:43,425 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 04:44:43,428 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 04:44:43,444 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 04:44:43,444 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 04:44:43,445 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 04:44:43,447 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 04:44:43,448 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 04:44:43,450 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 04:44:43,451 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 04:44:43,452 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 04:44:43,453 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 04:44:43,453 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 04:44:43,454 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 04:44:43,455 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 04:44:43,456 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 04:44:43,457 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 04:44:43,458 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 04:44:43,460 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 04:44:43,462 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 04:44:43,463 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 04:44:43,465 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 04:44:43,466 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 04:44:43,466 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 04:44:43,469 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-24 04:44:43,472 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 04:44:43,473 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 04:44:43,474 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 04:44:43,475 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 04:44:43,476 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 04:44:43,476 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 04:44:43,476 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 04:44:43,477 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 04:44:43,477 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 04:44:43,478 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 04:44:43,478 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 04:44:43,479 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 04:44:43,494 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 04:44:43,494 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 04:44:43,495 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 04:44:43,495 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 04:44:43,495 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 04:44:43,496 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 04:44:43,496 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 04:44:43,496 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 04:44:43,496 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 04:44:43,496 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 04:44:43,497 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 04:44:43,497 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 04:44:43,497 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 04:44:43,497 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 04:44:43,497 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 04:44:43,498 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 04:44:43,498 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 04:44:43,498 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 04:44:43,499 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 04:44:43,499 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 04:44:43,499 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 04:44:43,499 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 04:44:43,499 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 04:44:43,499 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 04:44:43,500 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 04:44:43,500 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 04:44:43,500 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 04:44:43,500 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 04:44:43,501 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 04:44:43,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 04:44:43,501 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 04:44:43,501 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 04:44:43,501 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 04:44:43,502 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 04:44:43,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 04:44:43,502 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 04:44:43,502 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 04:44:43,502 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 04:44:43,763 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 04:44:43,778 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 04:44:43,781 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 04:44:43,783 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 04:44:43,783 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 04:44:43,784 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product19.cil.c [2019-11-24 04:44:43,845 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dda3bc668/2d9e896b54b74a89ae3ac3270153ea0e/FLAG7221a53fe [2019-11-24 04:44:44,493 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 04:44:44,494 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product19.cil.c [2019-11-24 04:44:44,514 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dda3bc668/2d9e896b54b74a89ae3ac3270153ea0e/FLAG7221a53fe [2019-11-24 04:44:44,680 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dda3bc668/2d9e896b54b74a89ae3ac3270153ea0e [2019-11-24 04:44:44,691 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 04:44:44,693 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 04:44:44,694 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 04:44:44,694 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 04:44:44,697 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 04:44:44,698 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:44:44" (1/1) ... [2019-11-24 04:44:44,701 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8d10058 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:44:44, skipping insertion in model container [2019-11-24 04:44:44,702 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:44:44" (1/1) ... [2019-11-24 04:44:44,709 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 04:44:44,797 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 04:44:45,492 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 04:44:45,509 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 04:44:45,651 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 04:44:45,707 INFO L208 MainTranslator]: Completed translation [2019-11-24 04:44:45,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:44:45 WrapperNode [2019-11-24 04:44:45,707 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 04:44:45,708 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 04:44:45,708 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 04:44:45,708 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 04:44:45,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:44:45" (1/1) ... [2019-11-24 04:44:45,753 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:44:45" (1/1) ... [2019-11-24 04:44:46,139 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 04:44:46,140 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 04:44:46,140 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 04:44:46,140 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 04:44:46,150 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:44:45" (1/1) ... [2019-11-24 04:44:46,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:44:45" (1/1) ... [2019-11-24 04:44:46,203 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:44:45" (1/1) ... [2019-11-24 04:44:46,204 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:44:45" (1/1) ... [2019-11-24 04:44:46,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:44:45" (1/1) ... [2019-11-24 04:44:46,465 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:44:45" (1/1) ... [2019-11-24 04:44:46,503 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:44:45" (1/1) ... [2019-11-24 04:44:46,566 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 04:44:46,566 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 04:44:46,566 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 04:44:46,566 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 04:44:46,568 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:44:45" (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 04:44:46,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 04:44:46,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-24 04:44:46,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 04:44:46,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 04:45:49,245 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 04:45:49,245 INFO L284 CfgBuilder]: Removed 1497 assume(true) statements. [2019-11-24 04:45:49,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:45:49 BoogieIcfgContainer [2019-11-24 04:45:49,248 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 04:45:49,249 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 04:45:49,249 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 04:45:49,252 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 04:45:49,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 04:44:44" (1/3) ... [2019-11-24 04:45:49,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4902a0ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 04:45:49, skipping insertion in model container [2019-11-24 04:45:49,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:44:45" (2/3) ... [2019-11-24 04:45:49,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4902a0ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 04:45:49, skipping insertion in model container [2019-11-24 04:45:49,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:45:49" (3/3) ... [2019-11-24 04:45:49,256 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product19.cil.c [2019-11-24 04:45:49,266 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 04:45:49,274 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2019-11-24 04:45:49,285 INFO L249 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2019-11-24 04:45:49,323 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 04:45:49,324 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 04:45:49,324 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 04:45:49,324 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 04:45:49,324 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 04:45:49,324 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 04:45:49,325 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 04:45:49,325 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 04:45:49,372 INFO L276 IsEmpty]: Start isEmpty. Operand 1898 states. [2019-11-24 04:45:49,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-24 04:45:49,381 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 04:45:49,382 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 04:45:49,383 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 04:45:49,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 04:45:49,389 INFO L82 PathProgramCache]: Analyzing trace with hash 1275764522, now seen corresponding path program 1 times [2019-11-24 04:45:49,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 04:45:49,396 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317142073] [2019-11-24 04:45:49,397 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 04:45:49,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 04:45:49,850 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 04:45:49,851 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317142073] [2019-11-24 04:45:49,852 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 04:45:49,852 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 04:45:49,853 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219025198] [2019-11-24 04:45:49,858 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 04:45:49,858 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 04:45:49,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 04:45:49,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 04:45:49,874 INFO L87 Difference]: Start difference. First operand 1898 states. Second operand 3 states. [2019-11-24 04:45:50,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 04:45:50,116 INFO L93 Difference]: Finished difference Result 3775 states and 7255 transitions. [2019-11-24 04:45:50,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 04:45:50,118 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2019-11-24 04:45:50,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 04:45:50,155 INFO L225 Difference]: With dead ends: 3775 [2019-11-24 04:45:50,155 INFO L226 Difference]: Without dead ends: 1887 [2019-11-24 04:45:50,169 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 04:45:50,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1887 states. [2019-11-24 04:45:50,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1887 to 1887. [2019-11-24 04:45:50,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1887 states. [2019-11-24 04:45:50,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1887 states to 1887 states and 3613 transitions. [2019-11-24 04:45:50,314 INFO L78 Accepts]: Start accepts. Automaton has 1887 states and 3613 transitions. Word has length 14 [2019-11-24 04:45:50,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 04:45:50,314 INFO L462 AbstractCegarLoop]: Abstraction has 1887 states and 3613 transitions. [2019-11-24 04:45:50,315 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 04:45:50,315 INFO L276 IsEmpty]: Start isEmpty. Operand 1887 states and 3613 transitions. [2019-11-24 04:45:50,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-24 04:45:50,318 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 04:45:50,318 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 04:45:50,323 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 04:45:50,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 04:45:50,324 INFO L82 PathProgramCache]: Analyzing trace with hash -1188521936, now seen corresponding path program 1 times [2019-11-24 04:45:50,324 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 04:45:50,324 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284155067] [2019-11-24 04:45:50,324 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 04:45:50,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 04:45:50,502 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 04:45:50,503 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284155067] [2019-11-24 04:45:50,503 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 04:45:50,503 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-24 04:45:50,503 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259088051] [2019-11-24 04:45:50,505 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-24 04:45:50,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 04:45:50,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-24 04:45:50,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-24 04:45:50,506 INFO L87 Difference]: Start difference. First operand 1887 states and 3613 transitions. Second operand 4 states. [2019-11-24 04:45:54,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 04:45:54,896 INFO L93 Difference]: Finished difference Result 7120 states and 13580 transitions. [2019-11-24 04:45:54,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-24 04:45:54,897 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-11-24 04:45:54,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 04:45:54,931 INFO L225 Difference]: With dead ends: 7120 [2019-11-24 04:45:54,932 INFO L226 Difference]: Without dead ends: 5245 [2019-11-24 04:45:54,937 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-24 04:45:54,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5245 states. [2019-11-24 04:45:55,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5245 to 2505. [2019-11-24 04:45:55,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2505 states. [2019-11-24 04:45:55,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2505 states to 2505 states and 4766 transitions. [2019-11-24 04:45:55,059 INFO L78 Accepts]: Start accepts. Automaton has 2505 states and 4766 transitions. Word has length 14 [2019-11-24 04:45:55,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 04:45:55,059 INFO L462 AbstractCegarLoop]: Abstraction has 2505 states and 4766 transitions. [2019-11-24 04:45:55,060 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-24 04:45:55,060 INFO L276 IsEmpty]: Start isEmpty. Operand 2505 states and 4766 transitions. [2019-11-24 04:45:55,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-24 04:45:55,066 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 04:45:55,066 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 04:45:55,067 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 04:45:55,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 04:45:55,067 INFO L82 PathProgramCache]: Analyzing trace with hash 812422999, now seen corresponding path program 1 times [2019-11-24 04:45:55,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 04:45:55,068 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239302752] [2019-11-24 04:45:55,069 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 04:45:55,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 04:45:55,165 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 04:45:55,166 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239302752] [2019-11-24 04:45:55,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 04:45:55,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 04:45:55,167 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427017044] [2019-11-24 04:45:55,167 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 04:45:55,167 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 04:45:55,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 04:45:55,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 04:45:55,168 INFO L87 Difference]: Start difference. First operand 2505 states and 4766 transitions. Second operand 3 states. [2019-11-24 04:45:55,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 04:45:55,594 INFO L93 Difference]: Finished difference Result 7429 states and 14138 transitions. [2019-11-24 04:45:55,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 04:45:55,595 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-11-24 04:45:55,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 04:45:55,630 INFO L225 Difference]: With dead ends: 7429 [2019-11-24 04:45:55,630 INFO L226 Difference]: Without dead ends: 4930 [2019-11-24 04:45:55,636 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 04:45:55,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4930 states. [2019-11-24 04:45:55,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4930 to 2564. [2019-11-24 04:45:55,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2564 states. [2019-11-24 04:45:55,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2564 states to 2564 states and 4833 transitions. [2019-11-24 04:45:55,769 INFO L78 Accepts]: Start accepts. Automaton has 2564 states and 4833 transitions. Word has length 15 [2019-11-24 04:45:55,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 04:45:55,770 INFO L462 AbstractCegarLoop]: Abstraction has 2564 states and 4833 transitions. [2019-11-24 04:45:55,770 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 04:45:55,770 INFO L276 IsEmpty]: Start isEmpty. Operand 2564 states and 4833 transitions. [2019-11-24 04:45:55,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-24 04:45:55,771 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 04:45:55,771 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 04:45:55,771 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 04:45:55,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 04:45:55,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1755395078, now seen corresponding path program 1 times [2019-11-24 04:45:55,772 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 04:45:55,772 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297765865] [2019-11-24 04:45:55,773 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 04:45:55,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 04:45:55,933 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 04:45:55,933 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297765865] [2019-11-24 04:45:55,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 04:45:55,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-24 04:45:55,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758142669] [2019-11-24 04:45:55,934 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-24 04:45:55,935 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 04:45:55,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-24 04:45:55,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-24 04:45:55,935 INFO L87 Difference]: Start difference. First operand 2564 states and 4833 transitions. Second operand 6 states.