java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem03_label53_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 01:35:23,046 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 01:35:23,048 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 01:35:23,062 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 01:35:23,063 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 01:35:23,064 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 01:35:23,065 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 01:35:23,067 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 01:35:23,069 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 01:35:23,069 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 01:35:23,070 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 01:35:23,071 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 01:35:23,072 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 01:35:23,073 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 01:35:23,074 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 01:35:23,075 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 01:35:23,075 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 01:35:23,077 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 01:35:23,079 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 01:35:23,081 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 01:35:23,082 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 01:35:23,083 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 01:35:23,089 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-07 01:35:23,102 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-07 01:35:23,132 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 01:35:23,132 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 01:35:23,133 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 01:35:23,133 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 01:35:23,137 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 01:35:23,138 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 01:35:23,138 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 01:35:23,138 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 01:35:23,138 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 01:35:23,139 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 01:35:23,139 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 01:35:23,139 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 01:35:23,140 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 01:35:23,140 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 01:35:23,141 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 01:35:23,141 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 01:35:23,142 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 01:35:23,142 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 01:35:23,142 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 01:35:23,142 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 01:35:23,142 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 01:35:23,144 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 01:35:23,144 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 01:35:23,144 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 01:35:23,144 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 01:35:23,145 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 01:35:23,145 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 01:35:23,145 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 01:35:23,145 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 01:35:23,145 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 01:35:23,146 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 01:35:23,146 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 01:35:23,146 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 01:35:23,146 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 01:35:23,220 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 01:35:23,238 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 01:35:23,242 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 01:35:23,244 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 01:35:23,244 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 01:35:23,245 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label53_true-unreach-call.c [2018-11-07 01:35:23,317 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2a00ceea/0385c51905484270930d06342769d3af/FLAG0ba352cc0 [2018-11-07 01:35:23,982 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 01:35:23,983 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label53_true-unreach-call.c [2018-11-07 01:35:24,007 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2a00ceea/0385c51905484270930d06342769d3af/FLAG0ba352cc0 [2018-11-07 01:35:24,027 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2a00ceea/0385c51905484270930d06342769d3af [2018-11-07 01:35:24,043 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 01:35:24,045 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 01:35:24,046 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 01:35:24,046 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 01:35:24,050 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 01:35:24,051 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:35:24" (1/1) ... [2018-11-07 01:35:24,055 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35b0efbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:35:24, skipping insertion in model container [2018-11-07 01:35:24,055 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:35:24" (1/1) ... [2018-11-07 01:35:24,066 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 01:35:24,187 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 01:35:24,996 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 01:35:25,002 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 01:35:25,268 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 01:35:25,291 INFO L193 MainTranslator]: Completed translation [2018-11-07 01:35:25,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:35:25 WrapperNode [2018-11-07 01:35:25,293 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 01:35:25,294 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 01:35:25,294 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 01:35:25,294 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 01:35:25,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:35:25" (1/1) ... [2018-11-07 01:35:25,516 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:35:25" (1/1) ... [2018-11-07 01:35:25,525 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 01:35:25,526 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 01:35:25,526 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 01:35:25,526 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 01:35:25,538 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:35:25" (1/1) ... [2018-11-07 01:35:25,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:35:25" (1/1) ... [2018-11-07 01:35:25,548 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:35:25" (1/1) ... [2018-11-07 01:35:25,549 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:35:25" (1/1) ... [2018-11-07 01:35:25,624 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:35:25" (1/1) ... [2018-11-07 01:35:25,666 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:35:25" (1/1) ... [2018-11-07 01:35:25,690 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:35:25" (1/1) ... [2018-11-07 01:35:25,703 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 01:35:25,704 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 01:35:25,705 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 01:35:25,705 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 01:35:25,706 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:35:25" (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 [2018-11-07 01:35:25,772 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 01:35:25,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 01:35:25,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 01:35:25,772 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 01:35:25,773 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 01:35:25,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 01:35:25,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 01:35:25,773 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 01:35:25,773 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 01:35:30,868 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 01:35:30,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:35:30 BoogieIcfgContainer [2018-11-07 01:35:30,875 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 01:35:30,876 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 01:35:30,877 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 01:35:30,881 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 01:35:30,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:35:24" (1/3) ... [2018-11-07 01:35:30,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31766a16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:35:30, skipping insertion in model container [2018-11-07 01:35:30,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:35:25" (2/3) ... [2018-11-07 01:35:30,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31766a16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:35:30, skipping insertion in model container [2018-11-07 01:35:30,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:35:30" (3/3) ... [2018-11-07 01:35:30,888 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label53_true-unreach-call.c [2018-11-07 01:35:30,903 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 01:35:30,921 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 01:35:30,943 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 01:35:31,005 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 01:35:31,006 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 01:35:31,006 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 01:35:31,006 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 01:35:31,007 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 01:35:31,007 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 01:35:31,007 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 01:35:31,007 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 01:35:31,046 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2018-11-07 01:35:31,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2018-11-07 01:35:31,070 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 01:35:31,072 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 01:35:31,076 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 01:35:31,083 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 01:35:31,084 INFO L82 PathProgramCache]: Analyzing trace with hash 390618596, now seen corresponding path program 1 times [2018-11-07 01:35:31,087 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 01:35:31,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:35:31,154 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 01:35:31,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:35:31,155 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 01:35:31,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 01:35:32,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 01:35:32,521 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 01:35:32,521 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 01:35:32,521 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 01:35:32,530 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 01:35:32,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 01:35:32,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 01:35:32,553 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 4 states. [2018-11-07 01:35:35,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 01:35:35,610 INFO L93 Difference]: Finished difference Result 1066 states and 1924 transitions. [2018-11-07 01:35:35,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 01:35:35,615 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 201 [2018-11-07 01:35:35,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 01:35:35,640 INFO L225 Difference]: With dead ends: 1066 [2018-11-07 01:35:35,640 INFO L226 Difference]: Without dead ends: 748 [2018-11-07 01:35:35,648 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 01:35:35,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2018-11-07 01:35:35,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 527. [2018-11-07 01:35:35,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 527 states. [2018-11-07 01:35:35,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 902 transitions. [2018-11-07 01:35:35,761 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 902 transitions. Word has length 201 [2018-11-07 01:35:35,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 01:35:35,762 INFO L480 AbstractCegarLoop]: Abstraction has 527 states and 902 transitions. [2018-11-07 01:35:35,762 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 01:35:35,762 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 902 transitions. [2018-11-07 01:35:35,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2018-11-07 01:35:35,774 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 01:35:35,774 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 01:35:35,775 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 01:35:35,775 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 01:35:35,775 INFO L82 PathProgramCache]: Analyzing trace with hash -1605931427, now seen corresponding path program 1 times [2018-11-07 01:35:35,776 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 01:35:35,777 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:35:35,778 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 01:35:35,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:35:35,778 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 01:35:35,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 01:35:36,158 WARN L179 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2018-11-07 01:35:36,513 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 01:35:36,513 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 01:35:36,514 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 01:35:36,514 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 01:35:36,516 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 01:35:36,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 01:35:36,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 01:35:36,517 INFO L87 Difference]: Start difference. First operand 527 states and 902 transitions. Second operand 6 states. [2018-11-07 01:35:39,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 01:35:39,862 INFO L93 Difference]: Finished difference Result 1590 states and 2793 transitions. [2018-11-07 01:35:39,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-07 01:35:39,865 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 211 [2018-11-07 01:35:39,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 01:35:39,881 INFO L225 Difference]: With dead ends: 1590 [2018-11-07 01:35:39,881 INFO L226 Difference]: Without dead ends: 1069 [2018-11-07 01:35:39,885 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 01:35:39,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1069 states. [2018-11-07 01:35:39,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1069 to 1024. [2018-11-07 01:35:39,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1024 states. [2018-11-07 01:35:39,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1024 states to 1024 states and 1746 transitions. [2018-11-07 01:35:39,964 INFO L78 Accepts]: Start accepts. Automaton has 1024 states and 1746 transitions. Word has length 211 [2018-11-07 01:35:39,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 01:35:39,964 INFO L480 AbstractCegarLoop]: Abstraction has 1024 states and 1746 transitions. [2018-11-07 01:35:39,964 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 01:35:39,965 INFO L276 IsEmpty]: Start isEmpty. Operand 1024 states and 1746 transitions. [2018-11-07 01:35:39,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2018-11-07 01:35:39,971 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 01:35:39,971 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 01:35:39,972 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 01:35:39,972 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 01:35:39,972 INFO L82 PathProgramCache]: Analyzing trace with hash -1477255851, now seen corresponding path program 1 times [2018-11-07 01:35:39,973 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 01:35:39,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:35:39,974 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 01:35:39,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:35:39,975 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 01:35:40,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 01:35:40,229 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 01:35:40,229 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 01:35:40,229 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 01:35:40,230 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 01:35:40,230 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 01:35:40,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 01:35:40,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 01:35:40,231 INFO L87 Difference]: Start difference. First operand 1024 states and 1746 transitions. Second operand 5 states. [2018-11-07 01:35:43,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 01:35:43,624 INFO L93 Difference]: Finished difference Result 3166 states and 5674 transitions. [2018-11-07 01:35:43,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 01:35:43,629 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 212 [2018-11-07 01:35:43,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 01:35:43,648 INFO L225 Difference]: With dead ends: 3166 [2018-11-07 01:35:43,649 INFO L226 Difference]: Without dead ends: 2148 [2018-11-07 01:35:43,660 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 01:35:43,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2148 states. [2018-11-07 01:35:43,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2148 to 2105. [2018-11-07 01:35:43,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2105 states. [2018-11-07 01:35:43,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2105 states to 2105 states and 3422 transitions. [2018-11-07 01:35:43,768 INFO L78 Accepts]: Start accepts. Automaton has 2105 states and 3422 transitions. Word has length 212 [2018-11-07 01:35:43,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 01:35:43,769 INFO L480 AbstractCegarLoop]: Abstraction has 2105 states and 3422 transitions. [2018-11-07 01:35:43,769 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 01:35:43,769 INFO L276 IsEmpty]: Start isEmpty. Operand 2105 states and 3422 transitions. [2018-11-07 01:35:43,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2018-11-07 01:35:43,779 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 01:35:43,780 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 01:35:43,780 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 01:35:43,781 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 01:35:43,781 INFO L82 PathProgramCache]: Analyzing trace with hash 1229236448, now seen corresponding path program 1 times [2018-11-07 01:35:43,781 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 01:35:43,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:35:43,783 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 01:35:43,783 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:35:43,783 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 01:35:43,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 01:35:44,171 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 01:35:44,172 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 01:35:44,172 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 01:35:44,172 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 01:35:44,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 01:35:44,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 01:35:44,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 01:35:44,174 INFO L87 Difference]: Start difference. First operand 2105 states and 3422 transitions. Second operand 3 states. [2018-11-07 01:35:47,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 01:35:47,619 INFO L93 Difference]: Finished difference Result 6108 states and 10330 transitions. [2018-11-07 01:35:47,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 01:35:47,620 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 214 [2018-11-07 01:35:47,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 01:35:47,650 INFO L225 Difference]: With dead ends: 6108 [2018-11-07 01:35:47,650 INFO L226 Difference]: Without dead ends: 4009 [2018-11-07 01:35:47,664 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 01:35:47,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4009 states. [2018-11-07 01:35:47,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4009 to 3973. [2018-11-07 01:35:47,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3973 states. [2018-11-07 01:35:47,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3973 states to 3973 states and 6514 transitions. [2018-11-07 01:35:47,826 INFO L78 Accepts]: Start accepts. Automaton has 3973 states and 6514 transitions. Word has length 214 [2018-11-07 01:35:47,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 01:35:47,826 INFO L480 AbstractCegarLoop]: Abstraction has 3973 states and 6514 transitions. [2018-11-07 01:35:47,826 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 01:35:47,827 INFO L276 IsEmpty]: Start isEmpty. Operand 3973 states and 6514 transitions. [2018-11-07 01:35:47,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2018-11-07 01:35:47,847 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 01:35:47,847 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 01:35:47,848 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 01:35:47,848 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 01:35:47,848 INFO L82 PathProgramCache]: Analyzing trace with hash -565100084, now seen corresponding path program 1 times [2018-11-07 01:35:47,849 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 01:35:47,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:35:47,850 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 01:35:47,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:35:47,850 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 01:35:47,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 01:35:48,245 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 01:35:48,245 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 01:35:48,245 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-07 01:35:48,246 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 01:35:48,246 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-07 01:35:48,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-07 01:35:48,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-07 01:35:48,247 INFO L87 Difference]: Start difference. First operand 3973 states and 6514 transitions. Second operand 7 states. [2018-11-07 01:35:50,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 01:35:50,429 INFO L93 Difference]: Finished difference Result 12096 states and 22014 transitions. [2018-11-07 01:35:50,431 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 01:35:50,431 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 220 [2018-11-07 01:35:50,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 01:35:50,517 INFO L225 Difference]: With dead ends: 12096 [2018-11-07 01:35:50,517 INFO L226 Difference]: Without dead ends: 8129 [2018-11-07 01:35:50,542 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-11-07 01:35:50,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8129 states. [2018-11-07 01:35:50,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8129 to 7942. [2018-11-07 01:35:50,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7942 states. [2018-11-07 01:35:50,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7942 states to 7942 states and 13503 transitions. [2018-11-07 01:35:50,888 INFO L78 Accepts]: Start accepts. Automaton has 7942 states and 13503 transitions. Word has length 220 [2018-11-07 01:35:50,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 01:35:50,889 INFO L480 AbstractCegarLoop]: Abstraction has 7942 states and 13503 transitions. [2018-11-07 01:35:50,889 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-07 01:35:50,889 INFO L276 IsEmpty]: Start isEmpty. Operand 7942 states and 13503 transitions. [2018-11-07 01:35:50,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2018-11-07 01:35:50,932 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 01:35:50,933 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 01:35:50,933 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 01:35:50,933 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 01:35:50,934 INFO L82 PathProgramCache]: Analyzing trace with hash -314712711, now seen corresponding path program 1 times [2018-11-07 01:35:50,934 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 01:35:50,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:35:50,935 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 01:35:50,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:35:50,936 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 01:35:50,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 01:35:51,221 WARN L179 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 01:35:51,431 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 01:35:51,431 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 01:35:51,432 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 01:35:51,432 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 01:35:51,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 01:35:51,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 01:35:51,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 01:35:51,433 INFO L87 Difference]: Start difference. First operand 7942 states and 13503 transitions. Second operand 6 states. [2018-11-07 01:35:54,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 01:35:54,112 INFO L93 Difference]: Finished difference Result 22960 states and 42530 transitions. [2018-11-07 01:35:54,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 01:35:54,114 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 225 [2018-11-07 01:35:54,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 01:35:54,245 INFO L225 Difference]: With dead ends: 22960 [2018-11-07 01:35:54,246 INFO L226 Difference]: Without dead ends: 15024 [2018-11-07 01:35:54,292 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 01:35:54,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15024 states. [2018-11-07 01:35:54,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15024 to 14866. [2018-11-07 01:35:54,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14866 states. [2018-11-07 01:35:54,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14866 states to 14866 states and 24364 transitions. [2018-11-07 01:35:54,884 INFO L78 Accepts]: Start accepts. Automaton has 14866 states and 24364 transitions. Word has length 225 [2018-11-07 01:35:54,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 01:35:54,885 INFO L480 AbstractCegarLoop]: Abstraction has 14866 states and 24364 transitions. [2018-11-07 01:35:54,885 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 01:35:54,885 INFO L276 IsEmpty]: Start isEmpty. Operand 14866 states and 24364 transitions. [2018-11-07 01:35:54,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2018-11-07 01:35:54,960 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 01:35:54,961 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 01:35:54,961 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 01:35:54,961 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 01:35:54,962 INFO L82 PathProgramCache]: Analyzing trace with hash 732116718, now seen corresponding path program 1 times [2018-11-07 01:35:54,962 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 01:35:54,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:35:54,968 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 01:35:54,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:35:54,968 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 01:35:55,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 01:35:55,598 WARN L179 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-11-07 01:35:55,844 WARN L179 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-11-07 01:35:56,428 WARN L179 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-11-07 01:35:56,726 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-07 01:35:56,727 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 01:35:56,727 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 01:35:56,727 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 01:35:56,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 01:35:56,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 01:35:56,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-11-07 01:35:56,729 INFO L87 Difference]: Start difference. First operand 14866 states and 24364 transitions. Second operand 6 states. [2018-11-07 01:36:01,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 01:36:01,767 INFO L93 Difference]: Finished difference Result 31818 states and 52440 transitions. [2018-11-07 01:36:01,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-07 01:36:01,984 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 249 [2018-11-07 01:36:01,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 01:36:02,078 INFO L225 Difference]: With dead ends: 31818 [2018-11-07 01:36:02,078 INFO L226 Difference]: Without dead ends: 16918 [2018-11-07 01:36:02,134 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-11-07 01:36:02,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16918 states. [2018-11-07 01:36:02,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16918 to 16916. [2018-11-07 01:36:02,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16916 states. [2018-11-07 01:36:02,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16916 states to 16916 states and 26691 transitions. [2018-11-07 01:36:02,676 INFO L78 Accepts]: Start accepts. Automaton has 16916 states and 26691 transitions. Word has length 249 [2018-11-07 01:36:02,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 01:36:02,677 INFO L480 AbstractCegarLoop]: Abstraction has 16916 states and 26691 transitions. [2018-11-07 01:36:02,677 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 01:36:02,678 INFO L276 IsEmpty]: Start isEmpty. Operand 16916 states and 26691 transitions. [2018-11-07 01:36:02,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2018-11-07 01:36:02,768 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 01:36:02,769 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 01:36:02,769 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 01:36:02,770 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 01:36:02,770 INFO L82 PathProgramCache]: Analyzing trace with hash 646437938, now seen corresponding path program 1 times [2018-11-07 01:36:02,770 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 01:36:02,771 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:36:02,771 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 01:36:02,771 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:36:02,771 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 01:36:02,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 01:36:03,727 WARN L179 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 11 [2018-11-07 01:36:04,007 WARN L179 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 10 [2018-11-07 01:36:04,389 WARN L179 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2018-11-07 01:36:04,804 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 01:36:04,804 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 01:36:04,805 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 01:36:04,806 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 281 with the following transitions: [2018-11-07 01:36:04,809 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [334], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [961], [969], [977], [985], [993], [1001], [1009], [1017], [1025], [1033], [1041], [1049], [1057], [1065], [1069], [1071], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-11-07 01:36:04,940 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 01:36:04,940 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-11-07 01:39:47,119 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-11-07 01:39:47,120 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-11-07 01:39:47,121 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-07 01:39:47,122 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 01:39:47,122 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 01:39:47,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 01:39:47,134 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 01:39:47,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 01:39:47,361 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 01:39:47,410 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-11-07 01:39:47,612 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 01:39:47,612 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 01:39:47,618 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 01:39:47,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:39:47 BoogieIcfgContainer [2018-11-07 01:39:47,620 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 01:39:47,621 INFO L168 Benchmark]: Toolchain (without parser) took 263576.75 ms. Allocated memory was 1.5 GB in the beginning and 3.5 GB in the end (delta: 2.1 GB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -280.6 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-11-07 01:39:47,625 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 01:39:47,625 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1247.02 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-11-07 01:39:47,626 INFO L168 Benchmark]: Boogie Procedure Inliner took 231.83 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 718.3 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -842.8 MB). Peak memory consumption was 38.7 MB. Max. memory is 7.1 GB. [2018-11-07 01:39:47,629 INFO L168 Benchmark]: Boogie Preprocessor took 177.81 ms. Allocated memory is still 2.2 GB. Free memory is still 2.1 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 01:39:47,629 INFO L168 Benchmark]: RCFGBuilder took 5170.61 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.9 GB in the end (delta: 271.2 MB). Peak memory consumption was 271.2 MB. Max. memory is 7.1 GB. [2018-11-07 01:39:47,631 INFO L168 Benchmark]: TraceAbstraction took 256743.67 ms. Allocated memory was 2.2 GB in the beginning and 3.5 GB in the end (delta: 1.3 GB). Free memory was 1.9 GB in the beginning and 1.7 GB in the end (delta: 206.4 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-11-07 01:39:47,643 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1247.02 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 231.83 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 718.3 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -842.8 MB). Peak memory consumption was 38.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 177.81 ms. Allocated memory is still 2.2 GB. Free memory is still 2.1 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 5170.61 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.9 GB in the end (delta: 271.2 MB). Peak memory consumption was 271.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 256743.67 ms. Allocated memory was 2.2 GB in the beginning and 3.5 GB in the end (delta: 1.3 GB). Free memory was 1.9 GB in the beginning and 1.7 GB in the end (delta: 206.4 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1617]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1617). Cancelled while BasicCegarLoop was analyzing trace of length 281 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 8 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 312 locations, 1 error locations. TIMEOUT Result, 256.6s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 23.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1140 SDtfs, 6090 SDslu, 1205 SDs, 0 SdLazy, 9083 SolverSat, 1536 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 18 SyntacticMatches, 6 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16916occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 222.3s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.9s AutomataMinimizationTime, 7 MinimizatonAttempts, 692 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 1532 NumberOfCodeBlocks, 1532 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1525 ConstructedInterpolants, 0 QuantifiedInterpolants, 1808365 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 114/114 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown