java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-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/Problem02_label09_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 19:23:05,119 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 19:23:05,121 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 19:23:05,138 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 19:23:05,138 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 19:23:05,139 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 19:23:05,141 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 19:23:05,142 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 19:23:05,144 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 19:23:05,145 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 19:23:05,146 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 19:23:05,146 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 19:23:05,147 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 19:23:05,148 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 19:23:05,149 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 19:23:05,150 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 19:23:05,151 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 19:23:05,153 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 19:23:05,155 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 19:23:05,157 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 19:23:05,158 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 19:23:05,159 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 19:23:05,162 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 19:23:05,171 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 19:23:05,186 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 19:23:05,186 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 19:23:05,187 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 19:23:05,188 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 19:23:05,188 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 19:23:05,188 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 19:23:05,188 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 19:23:05,188 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 19:23:05,189 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 19:23:05,189 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 19:23:05,189 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 19:23:05,189 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 19:23:05,190 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 19:23:05,190 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 19:23:05,190 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 19:23:05,190 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 19:23:05,190 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 19:23:05,191 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 19:23:05,191 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 19:23:05,191 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 19:23:05,191 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 19:23:05,191 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 19:23:05,192 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 19:23:05,192 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 19:23:05,192 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 19:23:05,192 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 19:23:05,192 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 19:23:05,193 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 19:23:05,193 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 19:23:05,193 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 19:23:05,193 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 19:23:05,193 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 19:23:05,194 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 19:23:05,194 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 19:23:05,237 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 19:23:05,251 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 19:23:05,254 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 19:23:05,256 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 19:23:05,256 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 19:23:05,257 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label09_true-unreach-call_false-termination.c [2018-10-24 19:23:05,314 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c3445cf9f/f76a73079c9d49c896788929eb599e09/FLAG0e14643b6 [2018-10-24 19:23:05,855 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 19:23:05,856 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label09_true-unreach-call_false-termination.c [2018-10-24 19:23:05,882 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c3445cf9f/f76a73079c9d49c896788929eb599e09/FLAG0e14643b6 [2018-10-24 19:23:05,903 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c3445cf9f/f76a73079c9d49c896788929eb599e09 [2018-10-24 19:23:05,918 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 19:23:05,921 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 19:23:05,922 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 19:23:05,922 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 19:23:05,927 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 19:23:05,928 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:23:05" (1/1) ... [2018-10-24 19:23:05,932 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7be7802 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:23:05, skipping insertion in model container [2018-10-24 19:23:05,932 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:23:05" (1/1) ... [2018-10-24 19:23:05,943 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 19:23:06,006 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 19:23:06,518 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 19:23:06,523 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 19:23:06,665 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 19:23:06,687 INFO L193 MainTranslator]: Completed translation [2018-10-24 19:23:06,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:23:06 WrapperNode [2018-10-24 19:23:06,688 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 19:23:06,690 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 19:23:06,690 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 19:23:06,690 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 19:23:06,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:23:06" (1/1) ... [2018-10-24 19:23:06,733 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:23:06" (1/1) ... [2018-10-24 19:23:06,905 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 19:23:06,905 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 19:23:06,905 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 19:23:06,906 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 19:23:06,918 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:23:06" (1/1) ... [2018-10-24 19:23:06,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:23:06" (1/1) ... [2018-10-24 19:23:06,923 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:23:06" (1/1) ... [2018-10-24 19:23:06,923 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:23:06" (1/1) ... [2018-10-24 19:23:06,943 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:23:06" (1/1) ... [2018-10-24 19:23:06,963 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:23:06" (1/1) ... [2018-10-24 19:23:06,974 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:23:06" (1/1) ... [2018-10-24 19:23:06,985 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 19:23:06,986 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 19:23:06,986 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 19:23:06,986 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 19:23:06,987 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:23:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 19:23:07,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 19:23:07,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 19:23:07,051 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 19:23:07,051 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 19:23:07,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 19:23:07,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 19:23:07,052 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 19:23:07,052 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 19:23:10,251 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 19:23:10,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:23:10 BoogieIcfgContainer [2018-10-24 19:23:10,255 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 19:23:10,256 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 19:23:10,256 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 19:23:10,263 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 19:23:10,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:23:05" (1/3) ... [2018-10-24 19:23:10,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c2d76a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:23:10, skipping insertion in model container [2018-10-24 19:23:10,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:23:06" (2/3) ... [2018-10-24 19:23:10,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c2d76a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:23:10, skipping insertion in model container [2018-10-24 19:23:10,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:23:10" (3/3) ... [2018-10-24 19:23:10,268 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label09_true-unreach-call_false-termination.c [2018-10-24 19:23:10,278 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 19:23:10,287 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 19:23:10,305 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 19:23:10,346 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 19:23:10,346 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 19:23:10,346 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 19:23:10,347 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 19:23:10,347 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 19:23:10,347 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 19:23:10,347 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 19:23:10,348 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 19:23:10,378 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states. [2018-10-24 19:23:10,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-10-24 19:23:10,394 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:23:10,395 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] [2018-10-24 19:23:10,398 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:23:10,403 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:23:10,404 INFO L82 PathProgramCache]: Analyzing trace with hash 1669527864, now seen corresponding path program 1 times [2018-10-24 19:23:10,406 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:23:10,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:23:10,465 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:23:10,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:23:10,466 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:23:10,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:23:11,049 WARN L179 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 19:23:11,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:23:11,192 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:23:11,192 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 19:23:11,193 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:23:11,204 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 19:23:11,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 19:23:11,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 19:23:11,223 INFO L87 Difference]: Start difference. First operand 237 states. Second operand 3 states. [2018-10-24 19:23:12,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:23:12,930 INFO L93 Difference]: Finished difference Result 627 states and 1072 transitions. [2018-10-24 19:23:12,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 19:23:12,933 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 128 [2018-10-24 19:23:12,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:23:12,953 INFO L225 Difference]: With dead ends: 627 [2018-10-24 19:23:12,954 INFO L226 Difference]: Without dead ends: 388 [2018-10-24 19:23:12,960 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 19:23:12,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2018-10-24 19:23:13,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 383. [2018-10-24 19:23:13,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2018-10-24 19:23:13,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 619 transitions. [2018-10-24 19:23:13,039 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 619 transitions. Word has length 128 [2018-10-24 19:23:13,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:23:13,041 INFO L481 AbstractCegarLoop]: Abstraction has 383 states and 619 transitions. [2018-10-24 19:23:13,041 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 19:23:13,041 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 619 transitions. [2018-10-24 19:23:13,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-10-24 19:23:13,048 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:23:13,049 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] [2018-10-24 19:23:13,049 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:23:13,050 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:23:13,050 INFO L82 PathProgramCache]: Analyzing trace with hash -91961275, now seen corresponding path program 1 times [2018-10-24 19:23:13,050 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:23:13,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:23:13,052 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:23:13,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:23:13,052 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:23:13,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:23:13,490 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:23:13,491 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:23:13,491 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 19:23:13,491 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:23:13,493 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 19:23:13,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 19:23:13,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 19:23:13,494 INFO L87 Difference]: Start difference. First operand 383 states and 619 transitions. Second operand 5 states. [2018-10-24 19:23:15,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:23:15,531 INFO L93 Difference]: Finished difference Result 905 states and 1519 transitions. [2018-10-24 19:23:15,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 19:23:15,533 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 137 [2018-10-24 19:23:15,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:23:15,540 INFO L225 Difference]: With dead ends: 905 [2018-10-24 19:23:15,540 INFO L226 Difference]: Without dead ends: 382 [2018-10-24 19:23:15,549 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 19:23:15,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2018-10-24 19:23:15,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 382. [2018-10-24 19:23:15,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2018-10-24 19:23:15,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 613 transitions. [2018-10-24 19:23:15,579 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 613 transitions. Word has length 137 [2018-10-24 19:23:15,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:23:15,579 INFO L481 AbstractCegarLoop]: Abstraction has 382 states and 613 transitions. [2018-10-24 19:23:15,579 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 19:23:15,580 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 613 transitions. [2018-10-24 19:23:15,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2018-10-24 19:23:15,584 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:23:15,585 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 19:23:15,585 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:23:15,585 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:23:15,586 INFO L82 PathProgramCache]: Analyzing trace with hash -2004319935, now seen corresponding path program 1 times [2018-10-24 19:23:15,586 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:23:15,587 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:23:15,587 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:23:15,587 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:23:15,587 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:23:15,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:23:15,827 WARN L179 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2018-10-24 19:23:15,983 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:23:15,983 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:23:15,983 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 19:23:15,984 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:23:15,984 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 19:23:15,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 19:23:15,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 19:23:15,988 INFO L87 Difference]: Start difference. First operand 382 states and 613 transitions. Second operand 6 states. [2018-10-24 19:23:18,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:23:18,797 INFO L93 Difference]: Finished difference Result 1241 states and 2101 transitions. [2018-10-24 19:23:18,798 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-24 19:23:18,798 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 139 [2018-10-24 19:23:18,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:23:18,809 INFO L225 Difference]: With dead ends: 1241 [2018-10-24 19:23:18,812 INFO L226 Difference]: Without dead ends: 865 [2018-10-24 19:23:18,817 INFO L605 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 [2018-10-24 19:23:18,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2018-10-24 19:23:18,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 818. [2018-10-24 19:23:18,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 818 states. [2018-10-24 19:23:18,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1267 transitions. [2018-10-24 19:23:18,884 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1267 transitions. Word has length 139 [2018-10-24 19:23:18,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:23:18,884 INFO L481 AbstractCegarLoop]: Abstraction has 818 states and 1267 transitions. [2018-10-24 19:23:18,884 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 19:23:18,885 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1267 transitions. [2018-10-24 19:23:18,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-10-24 19:23:18,888 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:23:18,888 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 19:23:18,889 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:23:18,889 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:23:18,889 INFO L82 PathProgramCache]: Analyzing trace with hash -430858735, now seen corresponding path program 1 times [2018-10-24 19:23:18,889 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:23:18,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:23:18,890 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:23:18,891 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:23:18,891 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:23:18,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:23:19,317 WARN L179 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-24 19:23:19,508 WARN L179 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-10-24 19:23:19,607 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:23:19,607 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:23:19,607 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-24 19:23:19,607 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:23:19,608 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 19:23:19,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 19:23:19,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-10-24 19:23:19,609 INFO L87 Difference]: Start difference. First operand 818 states and 1267 transitions. Second operand 7 states. [2018-10-24 19:23:23,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:23:23,756 INFO L93 Difference]: Finished difference Result 2617 states and 4252 transitions. [2018-10-24 19:23:23,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 19:23:23,757 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 142 [2018-10-24 19:23:23,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:23:23,778 INFO L225 Difference]: With dead ends: 2617 [2018-10-24 19:23:23,779 INFO L226 Difference]: Without dead ends: 1805 [2018-10-24 19:23:23,785 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-10-24 19:23:23,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1805 states. [2018-10-24 19:23:23,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1805 to 1800. [2018-10-24 19:23:23,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1800 states. [2018-10-24 19:23:23,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1800 states to 1800 states and 2733 transitions. [2018-10-24 19:23:23,871 INFO L78 Accepts]: Start accepts. Automaton has 1800 states and 2733 transitions. Word has length 142 [2018-10-24 19:23:23,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:23:23,872 INFO L481 AbstractCegarLoop]: Abstraction has 1800 states and 2733 transitions. [2018-10-24 19:23:23,872 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 19:23:23,873 INFO L276 IsEmpty]: Start isEmpty. Operand 1800 states and 2733 transitions. [2018-10-24 19:23:23,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2018-10-24 19:23:23,884 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:23:23,884 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 19:23:23,885 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:23:23,885 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:23:23,885 INFO L82 PathProgramCache]: Analyzing trace with hash 1196711489, now seen corresponding path program 1 times [2018-10-24 19:23:23,885 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:23:23,886 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:23:23,886 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:23:23,887 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:23:23,888 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:23:23,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:23:24,099 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:23:24,099 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:23:24,099 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 19:23:24,099 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:23:24,100 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 19:23:24,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 19:23:24,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 19:23:24,100 INFO L87 Difference]: Start difference. First operand 1800 states and 2733 transitions. Second operand 6 states. [2018-10-24 19:23:26,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:23:26,292 INFO L93 Difference]: Finished difference Result 4620 states and 7211 transitions. [2018-10-24 19:23:26,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 19:23:26,295 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 150 [2018-10-24 19:23:26,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:23:26,314 INFO L225 Difference]: With dead ends: 4620 [2018-10-24 19:23:26,314 INFO L226 Difference]: Without dead ends: 2826 [2018-10-24 19:23:26,324 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 19:23:26,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2826 states. [2018-10-24 19:23:26,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2826 to 2779. [2018-10-24 19:23:26,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2779 states. [2018-10-24 19:23:26,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2779 states to 2779 states and 4070 transitions. [2018-10-24 19:23:26,421 INFO L78 Accepts]: Start accepts. Automaton has 2779 states and 4070 transitions. Word has length 150 [2018-10-24 19:23:26,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:23:26,421 INFO L481 AbstractCegarLoop]: Abstraction has 2779 states and 4070 transitions. [2018-10-24 19:23:26,421 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 19:23:26,421 INFO L276 IsEmpty]: Start isEmpty. Operand 2779 states and 4070 transitions. [2018-10-24 19:23:26,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-10-24 19:23:26,431 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:23:26,431 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:23:26,432 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:23:26,432 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:23:26,432 INFO L82 PathProgramCache]: Analyzing trace with hash 443735674, now seen corresponding path program 1 times [2018-10-24 19:23:26,432 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:23:26,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:23:26,433 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:23:26,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:23:26,434 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:23:26,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:23:26,721 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:23:26,722 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:23:26,722 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 19:23:26,722 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:23:26,722 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 19:23:26,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 19:23:26,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 19:23:26,723 INFO L87 Difference]: Start difference. First operand 2779 states and 4070 transitions. Second operand 5 states. [2018-10-24 19:23:27,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:23:27,636 INFO L93 Difference]: Finished difference Result 5671 states and 8370 transitions. [2018-10-24 19:23:27,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 19:23:27,637 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 155 [2018-10-24 19:23:27,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:23:27,656 INFO L225 Difference]: With dead ends: 5671 [2018-10-24 19:23:27,656 INFO L226 Difference]: Without dead ends: 2750 [2018-10-24 19:23:27,667 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 19:23:27,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2750 states. [2018-10-24 19:23:27,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2750 to 2750. [2018-10-24 19:23:27,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2750 states. [2018-10-24 19:23:27,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2750 states to 2750 states and 3975 transitions. [2018-10-24 19:23:27,757 INFO L78 Accepts]: Start accepts. Automaton has 2750 states and 3975 transitions. Word has length 155 [2018-10-24 19:23:27,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:23:27,757 INFO L481 AbstractCegarLoop]: Abstraction has 2750 states and 3975 transitions. [2018-10-24 19:23:27,758 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 19:23:27,758 INFO L276 IsEmpty]: Start isEmpty. Operand 2750 states and 3975 transitions. [2018-10-24 19:23:27,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2018-10-24 19:23:27,768 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:23:27,768 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2018-10-24 19:23:27,768 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:23:27,768 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:23:27,769 INFO L82 PathProgramCache]: Analyzing trace with hash -939036357, now seen corresponding path program 1 times [2018-10-24 19:23:27,769 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:23:27,773 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:23:27,773 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:23:27,773 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:23:27,774 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:23:27,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:23:28,012 WARN L179 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 19:23:28,197 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 31 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-10-24 19:23:28,197 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 19:23:28,197 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 19:23:28,198 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 165 with the following transitions: [2018-10-24 19:23:28,201 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [13], [14], [18], [22], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [83], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [659], [667], [675], [683], [691], [695], [697], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-10-24 19:23:28,272 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 19:23:28,272 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 19:23:41,836 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 19:23:41,838 INFO L272 AbstractInterpreter]: Visited 129 different actions 129 times. Never merged. Never widened. Never found a fixpoint. Largest state had 38 variables. [2018-10-24 19:23:41,851 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:23:41,851 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 19:23:46,229 INFO L232 lantSequenceWeakener]: Weakened 143 states. On average, predicates are now at 81.5% of their original sizes. [2018-10-24 19:23:46,229 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 19:23:49,712 INFO L413 sIntCurrentIteration]: We have 163 unified AI predicates [2018-10-24 19:23:49,713 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 19:23:49,714 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 19:23:49,714 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [5] total 18 [2018-10-24 19:23:49,714 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:23:49,714 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-10-24 19:23:49,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-10-24 19:23:49,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2018-10-24 19:23:49,715 INFO L87 Difference]: Start difference. First operand 2750 states and 3975 transitions. Second operand 15 states. [2018-10-24 19:25:26,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:25:26,792 INFO L93 Difference]: Finished difference Result 5792 states and 8388 transitions. [2018-10-24 19:25:26,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-10-24 19:25:26,792 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 164 [2018-10-24 19:25:26,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:25:26,806 INFO L225 Difference]: With dead ends: 5792 [2018-10-24 19:25:26,806 INFO L226 Difference]: Without dead ends: 3048 [2018-10-24 19:25:26,816 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 176 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=207, Invalid=549, Unknown=0, NotChecked=0, Total=756 [2018-10-24 19:25:26,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3048 states. [2018-10-24 19:25:26,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3048 to 2895. [2018-10-24 19:25:26,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2895 states. [2018-10-24 19:25:26,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2895 states to 2895 states and 4128 transitions. [2018-10-24 19:25:26,975 INFO L78 Accepts]: Start accepts. Automaton has 2895 states and 4128 transitions. Word has length 164 [2018-10-24 19:25:26,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:25:26,976 INFO L481 AbstractCegarLoop]: Abstraction has 2895 states and 4128 transitions. [2018-10-24 19:25:26,976 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-10-24 19:25:26,976 INFO L276 IsEmpty]: Start isEmpty. Operand 2895 states and 4128 transitions. [2018-10-24 19:25:26,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-10-24 19:25:26,987 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:25:26,987 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2018-10-24 19:25:26,987 INFO L424 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:25:26,988 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:25:26,988 INFO L82 PathProgramCache]: Analyzing trace with hash -1140751716, now seen corresponding path program 1 times [2018-10-24 19:25:26,988 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:25:26,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:25:26,989 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:25:26,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:25:26,990 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:25:27,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:25:27,339 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 50 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-10-24 19:25:27,339 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 19:25:27,339 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 19:25:27,340 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 175 with the following transitions: [2018-10-24 19:25:27,340 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [9], [10], [13], [14], [18], [22], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [83], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [659], [667], [675], [683], [691], [695], [697], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-10-24 19:25:27,346 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 19:25:27,347 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 19:25:55,395 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 19:25:55,395 INFO L272 AbstractInterpreter]: Visited 133 different actions 260 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 38 variables. [2018-10-24 19:25:55,401 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:25:55,401 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 19:26:00,684 INFO L232 lantSequenceWeakener]: Weakened 81 states. On average, predicates are now at 82.23% of their original sizes. [2018-10-24 19:26:00,684 INFO L411 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-10-24 19:27:05,531 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 19:27:05,536 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 19:27:05,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 07:27:05 BoogieIcfgContainer [2018-10-24 19:27:05,536 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 19:27:05,537 INFO L168 Benchmark]: Toolchain (without parser) took 239618.45 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 3.0 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-10-24 19:27:05,539 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 19:27:05,539 INFO L168 Benchmark]: CACSL2BoogieTranslator took 767.01 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-10-24 19:27:05,540 INFO L168 Benchmark]: Boogie Procedure Inliner took 215.32 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 756.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -840.0 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. [2018-10-24 19:27:05,542 INFO L168 Benchmark]: Boogie Preprocessor took 80.13 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 19:27:05,542 INFO L168 Benchmark]: RCFGBuilder took 3269.09 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 117.8 MB). Peak memory consumption was 117.8 MB. Max. memory is 7.1 GB. [2018-10-24 19:27:05,543 INFO L168 Benchmark]: TraceAbstraction took 235280.42 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.1 GB in the beginning and 3.0 GB in the end (delta: -847.4 MB). Peak memory consumption was 935.2 MB. Max. memory is 7.1 GB. [2018-10-24 19:27:05,548 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 767.01 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 215.32 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 756.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -840.0 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 80.13 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 3269.09 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 117.8 MB). Peak memory consumption was 117.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 235280.42 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.1 GB in the beginning and 3.0 GB in the end (delta: -847.4 MB). Peak memory consumption was 935.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 535]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 535). Cancelled while BasicCegarLoop was analyzing trace of length 175 with TraceHistMax 4,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 21 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 237 locations, 1 error locations. TIMEOUT Result, 235.2s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 111.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 990 SDtfs, 5377 SDslu, 1100 SDs, 0 SdLazy, 6273 SolverSat, 1287 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 64.9s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 229 GetRequests, 171 SyntacticMatches, 4 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 9.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2895occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 41.7s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9941682754182748 AbsIntWeakeningRatio, 0.22023809523809523 AbsIntAvgWeakeningVarsNumRemoved, 736.4345238095239 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 7 MinimizatonAttempts, 257 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 1015 NumberOfCodeBlocks, 1015 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1008 ConstructedInterpolants, 0 QuantifiedInterpolants, 961084 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 105/107 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown