/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_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 04:46:05,488 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 04:46:05,493 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 04:46:05,511 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 04:46:05,511 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 04:46:05,513 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 04:46:05,515 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 04:46:05,524 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 04:46:05,526 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 04:46:05,526 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 04:46:05,529 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 04:46:05,530 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 04:46:05,530 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 04:46:05,531 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 04:46:05,534 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 04:46:05,535 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 04:46:05,537 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 04:46:05,540 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 04:46:05,542 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 04:46:05,546 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 04:46:05,551 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 04:46:05,552 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 04:46:05,553 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 04:46:05,554 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 04:46:05,556 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-24 04:46:05,560 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 04:46:05,561 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 04:46:05,562 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 04:46:05,563 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 04:46:05,564 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 04:46:05,564 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 04:46:05,565 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 04:46:05,565 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 04:46:05,565 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 04:46:05,569 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 04:46:05,570 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 04:46:05,571 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 04:46:05,603 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 04:46:05,606 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 04:46:05,607 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 04:46:05,607 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 04:46:05,607 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 04:46:05,607 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 04:46:05,607 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 04:46:05,610 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 04:46:05,610 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 04:46:05,610 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 04:46:05,610 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 04:46:05,610 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 04:46:05,610 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 04:46:05,611 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 04:46:05,611 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 04:46:05,612 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 04:46:05,612 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 04:46:05,612 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 04:46:05,612 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 04:46:05,612 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 04:46:05,612 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 04:46:05,613 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 04:46:05,613 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 04:46:05,613 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 04:46:05,613 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 04:46:05,613 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 04:46:05,615 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 04:46:05,615 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 04:46:05,615 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 04:46:05,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 04:46:05,616 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 04:46:05,616 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 04:46:05,616 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 04:46:05,616 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 04:46:05,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 04:46:05,618 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 04:46:05,618 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 04:46:05,618 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 04:46:05,867 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 04:46:05,885 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 04:46:05,889 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 04:46:05,890 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 04:46:05,890 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 04:46:05,891 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product27.cil.c [2019-11-24 04:46:05,965 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3db2f85c0/4d7354c476b7487b99dec5e205103026/FLAG938aa82d0 [2019-11-24 04:46:06,593 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 04:46:06,594 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product27.cil.c [2019-11-24 04:46:06,612 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3db2f85c0/4d7354c476b7487b99dec5e205103026/FLAG938aa82d0 [2019-11-24 04:46:06,782 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3db2f85c0/4d7354c476b7487b99dec5e205103026 [2019-11-24 04:46:06,792 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 04:46:06,794 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 04:46:06,794 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 04:46:06,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 04:46:06,800 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 04:46:06,801 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:46:06" (1/1) ... [2019-11-24 04:46:06,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39887e50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:46:06, skipping insertion in model container [2019-11-24 04:46:06,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:46:06" (1/1) ... [2019-11-24 04:46:06,812 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 04:46:06,896 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 04:46:07,644 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 04:46:07,664 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 04:46:07,784 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 04:46:07,845 INFO L208 MainTranslator]: Completed translation [2019-11-24 04:46:07,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:46:07 WrapperNode [2019-11-24 04:46:07,846 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 04:46:07,847 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 04:46:07,847 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 04:46:07,847 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 04:46:07,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:46:07" (1/1) ... [2019-11-24 04:46:07,896 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:46:07" (1/1) ... [2019-11-24 04:46:08,310 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 04:46:08,311 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 04:46:08,311 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 04:46:08,311 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 04:46:08,321 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:46:07" (1/1) ... [2019-11-24 04:46:08,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:46:07" (1/1) ... [2019-11-24 04:46:08,381 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:46:07" (1/1) ... [2019-11-24 04:46:08,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:46:07" (1/1) ... [2019-11-24 04:46:08,498 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:46:07" (1/1) ... [2019-11-24 04:46:08,621 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:46:07" (1/1) ... [2019-11-24 04:46:08,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:46:07" (1/1) ... [2019-11-24 04:46:08,711 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 04:46:08,711 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 04:46:08,711 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 04:46:08,711 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 04:46:08,712 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:46:07" (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 04:46:08,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 04:46:08,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-24 04:46:08,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 04:46:08,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 04:47:12,091 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 04:47:12,091 INFO L284 CfgBuilder]: Removed 1617 assume(true) statements. [2019-11-24 04:47:12,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:47:12 BoogieIcfgContainer [2019-11-24 04:47:12,093 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 04:47:12,094 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 04:47:12,094 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 04:47:12,097 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 04:47:12,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 04:46:06" (1/3) ... [2019-11-24 04:47:12,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@83d0968 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 04:47:12, skipping insertion in model container [2019-11-24 04:47:12,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:46:07" (2/3) ... [2019-11-24 04:47:12,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@83d0968 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 04:47:12, skipping insertion in model container [2019-11-24 04:47:12,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:47:12" (3/3) ... [2019-11-24 04:47:12,101 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product27.cil.c [2019-11-24 04:47:12,110 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 04:47:12,119 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2019-11-24 04:47:12,128 INFO L249 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2019-11-24 04:47:12,170 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 04:47:12,170 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 04:47:12,171 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 04:47:12,171 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 04:47:12,171 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 04:47:12,171 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 04:47:12,171 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 04:47:12,171 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 04:47:12,215 INFO L276 IsEmpty]: Start isEmpty. Operand 1898 states. [2019-11-24 04:47:12,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-24 04:47:12,223 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 04:47:12,224 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 04:47:12,225 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 04:47:12,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 04:47:12,230 INFO L82 PathProgramCache]: Analyzing trace with hash -1796342432, now seen corresponding path program 1 times [2019-11-24 04:47:12,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 04:47:12,237 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806039917] [2019-11-24 04:47:12,237 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 04:47:12,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 04:47:12,711 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 04:47:12,712 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806039917] [2019-11-24 04:47:12,713 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 04:47:12,713 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 04:47:12,715 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628681965] [2019-11-24 04:47:12,720 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 04:47:12,721 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 04:47:12,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 04:47:12,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 04:47:12,737 INFO L87 Difference]: Start difference. First operand 1898 states. Second operand 3 states. [2019-11-24 04:47:12,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 04:47:12,955 INFO L93 Difference]: Finished difference Result 3775 states and 7255 transitions. [2019-11-24 04:47:12,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 04:47:12,957 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2019-11-24 04:47:12,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 04:47:12,988 INFO L225 Difference]: With dead ends: 3775 [2019-11-24 04:47:12,988 INFO L226 Difference]: Without dead ends: 1887 [2019-11-24 04:47:12,998 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 04:47:13,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1887 states. [2019-11-24 04:47:13,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1887 to 1887. [2019-11-24 04:47:13,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1887 states. [2019-11-24 04:47:13,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1887 states to 1887 states and 3613 transitions. [2019-11-24 04:47:13,140 INFO L78 Accepts]: Start accepts. Automaton has 1887 states and 3613 transitions. Word has length 14 [2019-11-24 04:47:13,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 04:47:13,141 INFO L462 AbstractCegarLoop]: Abstraction has 1887 states and 3613 transitions. [2019-11-24 04:47:13,141 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 04:47:13,141 INFO L276 IsEmpty]: Start isEmpty. Operand 1887 states and 3613 transitions. [2019-11-24 04:47:13,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-24 04:47:13,142 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 04:47:13,143 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 04:47:13,143 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 04:47:13,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 04:47:13,144 INFO L82 PathProgramCache]: Analyzing trace with hash 52119159, now seen corresponding path program 1 times [2019-11-24 04:47:13,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 04:47:13,144 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787184405] [2019-11-24 04:47:13,145 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 04:47:13,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 04:47:13,251 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 04:47:13,252 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787184405] [2019-11-24 04:47:13,252 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 04:47:13,252 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-24 04:47:13,252 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270473415] [2019-11-24 04:47:13,254 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-24 04:47:13,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 04:47:13,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-24 04:47:13,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-24 04:47:13,255 INFO L87 Difference]: Start difference. First operand 1887 states and 3613 transitions. Second operand 4 states. [2019-11-24 04:47:15,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 04:47:15,994 INFO L93 Difference]: Finished difference Result 7120 states and 13580 transitions. [2019-11-24 04:47:15,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-24 04:47:15,994 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-11-24 04:47:15,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 04:47:16,026 INFO L225 Difference]: With dead ends: 7120 [2019-11-24 04:47:16,026 INFO L226 Difference]: Without dead ends: 5245 [2019-11-24 04:47:16,031 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 04:47:16,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5245 states. [2019-11-24 04:47:16,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5245 to 2505. [2019-11-24 04:47:16,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2505 states. [2019-11-24 04:47:16,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2505 states to 2505 states and 4766 transitions. [2019-11-24 04:47:16,170 INFO L78 Accepts]: Start accepts. Automaton has 2505 states and 4766 transitions. Word has length 14 [2019-11-24 04:47:16,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 04:47:16,170 INFO L462 AbstractCegarLoop]: Abstraction has 2505 states and 4766 transitions. [2019-11-24 04:47:16,170 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-24 04:47:16,171 INFO L276 IsEmpty]: Start isEmpty. Operand 2505 states and 4766 transitions. [2019-11-24 04:47:16,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-24 04:47:16,172 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 04:47:16,172 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 04:47:16,173 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 04:47:16,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 04:47:16,173 INFO L82 PathProgramCache]: Analyzing trace with hash 664128347, now seen corresponding path program 1 times [2019-11-24 04:47:16,174 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 04:47:16,174 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541467694] [2019-11-24 04:47:16,174 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 04:47:16,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 04:47:16,255 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 04:47:16,255 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541467694] [2019-11-24 04:47:16,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 04:47:16,256 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 04:47:16,256 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67597075] [2019-11-24 04:47:16,257 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 04:47:16,257 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 04:47:16,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 04:47:16,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 04:47:16,257 INFO L87 Difference]: Start difference. First operand 2505 states and 4766 transitions. Second operand 3 states. [2019-11-24 04:47:16,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 04:47:16,590 INFO L93 Difference]: Finished difference Result 7429 states and 14138 transitions. [2019-11-24 04:47:16,591 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 04:47:16,591 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-11-24 04:47:16,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 04:47:16,618 INFO L225 Difference]: With dead ends: 7429 [2019-11-24 04:47:16,618 INFO L226 Difference]: Without dead ends: 4930 [2019-11-24 04:47:16,623 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 04:47:16,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4930 states. [2019-11-24 04:47:16,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4930 to 2564. [2019-11-24 04:47:16,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2564 states. [2019-11-24 04:47:16,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2564 states to 2564 states and 4833 transitions. [2019-11-24 04:47:16,725 INFO L78 Accepts]: Start accepts. Automaton has 2564 states and 4833 transitions. Word has length 15 [2019-11-24 04:47:16,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 04:47:16,725 INFO L462 AbstractCegarLoop]: Abstraction has 2564 states and 4833 transitions. [2019-11-24 04:47:16,725 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 04:47:16,726 INFO L276 IsEmpty]: Start isEmpty. Operand 2564 states and 4833 transitions. [2019-11-24 04:47:16,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-24 04:47:16,727 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 04:47:16,727 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 04:47:16,727 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 04:47:16,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 04:47:16,728 INFO L82 PathProgramCache]: Analyzing trace with hash -1512414089, now seen corresponding path program 1 times [2019-11-24 04:47:16,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 04:47:16,728 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023305291] [2019-11-24 04:47:16,728 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 04:47:16,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 04:47:16,853 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 04:47:16,853 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023305291] [2019-11-24 04:47:16,853 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 04:47:16,853 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-24 04:47:16,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433232969] [2019-11-24 04:47:16,854 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-24 04:47:16,854 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 04:47:16,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-24 04:47:16,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-24 04:47:16,855 INFO L87 Difference]: Start difference. First operand 2564 states and 4833 transitions. Second operand 5 states. [2019-11-24 04:47:19,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 04:47:19,162 INFO L93 Difference]: Finished difference Result 10661 states and 20131 transitions. [2019-11-24 04:47:19,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-24 04:47:19,162 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-24 04:47:19,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 04:47:19,204 INFO L225 Difference]: With dead ends: 10661 [2019-11-24 04:47:19,205 INFO L226 Difference]: Without dead ends: 8112 [2019-11-24 04:47:19,211 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-24 04:47:19,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8112 states. [2019-11-24 04:47:19,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8112 to 3744. [2019-11-24 04:47:19,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3744 states. [2019-11-24 04:47:19,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3744 states to 3744 states and 6992 transitions. [2019-11-24 04:47:19,387 INFO L78 Accepts]: Start accepts. Automaton has 3744 states and 6992 transitions. Word has length 16 [2019-11-24 04:47:19,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 04:47:19,387 INFO L462 AbstractCegarLoop]: Abstraction has 3744 states and 6992 transitions. [2019-11-24 04:47:19,387 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-24 04:47:19,389 INFO L276 IsEmpty]: Start isEmpty. Operand 3744 states and 6992 transitions. [2019-11-24 04:47:19,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-24 04:47:19,393 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 04:47:19,393 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 04:47:19,394 INFO L410 AbstractCegarLoop]: === Iteration 5 === [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 04:47:19,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 04:47:19,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1914256695, now seen corresponding path program 1 times [2019-11-24 04:47:19,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 04:47:19,395 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024003607] [2019-11-24 04:47:19,395 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 04:47:19,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 04:47:19,514 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 04:47:19,514 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024003607] [2019-11-24 04:47:19,515 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 04:47:19,515 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-24 04:47:19,515 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226388279] [2019-11-24 04:47:19,516 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-24 04:47:19,516 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 04:47:19,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-24 04:47:19,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-24 04:47:19,517 INFO L87 Difference]: Start difference. First operand 3744 states and 6992 transitions. Second operand 5 states. [2019-11-24 04:47:20,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 04:47:20,229 INFO L93 Difference]: Finished difference Result 13428 states and 25244 transitions. [2019-11-24 04:47:20,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-24 04:47:20,230 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-24 04:47:20,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 04:47:20,269 INFO L225 Difference]: With dead ends: 13428 [2019-11-24 04:47:20,269 INFO L226 Difference]: Without dead ends: 10052 [2019-11-24 04:47:20,278 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-24 04:47:20,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10052 states. [2019-11-24 04:47:23,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10052 to 9938. [2019-11-24 04:47:23,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9938 states. [2019-11-24 04:47:23,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9938 states to 9938 states and 18750 transitions. [2019-11-24 04:47:23,744 INFO L78 Accepts]: Start accepts. Automaton has 9938 states and 18750 transitions. Word has length 17 [2019-11-24 04:47:23,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 04:47:23,745 INFO L462 AbstractCegarLoop]: Abstraction has 9938 states and 18750 transitions. [2019-11-24 04:47:23,745 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-24 04:47:23,745 INFO L276 IsEmpty]: Start isEmpty. Operand 9938 states and 18750 transitions. [2019-11-24 04:47:23,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-24 04:47:23,747 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 04:47:23,747 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 04:47:23,747 INFO L410 AbstractCegarLoop]: === Iteration 6 === [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 04:47:23,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 04:47:23,747 INFO L82 PathProgramCache]: Analyzing trace with hash 501746635, now seen corresponding path program 1 times [2019-11-24 04:47:23,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 04:47:23,748 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746240202] [2019-11-24 04:47:23,748 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 04:47:23,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 04:47:23,841 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 04:47:23,841 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746240202] [2019-11-24 04:47:23,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 04:47:23,842 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 04:47:23,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262631589] [2019-11-24 04:47:23,842 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 04:47:23,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 04:47:23,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 04:47:23,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 04:47:23,843 INFO L87 Difference]: Start difference. First operand 9938 states and 18750 transitions. Second operand 3 states. [2019-11-24 04:47:24,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 04:47:24,331 INFO L93 Difference]: Finished difference Result 25865 states and 48850 transitions. [2019-11-24 04:47:24,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 04:47:24,332 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-24 04:47:24,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted.