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/Problem16_label55_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 03:49:19,574 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 03:49:19,577 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 03:49:19,594 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 03:49:19,595 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 03:49:19,596 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 03:49:19,598 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 03:49:19,601 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 03:49:19,602 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 03:49:19,603 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 03:49:19,605 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 03:49:19,606 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 03:49:19,607 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 03:49:19,608 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 03:49:19,609 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 03:49:19,610 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 03:49:19,611 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 03:49:19,613 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 03:49:19,615 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 03:49:19,617 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 03:49:19,618 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 03:49:19,619 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 03:49:19,621 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 03:49:19,622 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 03:49:19,622 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 03:49:19,623 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 03:49:19,624 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 03:49:19,625 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 03:49:19,626 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 03:49:19,627 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 03:49:19,627 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 03:49:19,628 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 03:49:19,629 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 03:49:19,629 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 03:49:19,630 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 03:49:19,630 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 03:49:19,631 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 03:49:19,646 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 03:49:19,646 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 03:49:19,647 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 03:49:19,647 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 03:49:19,648 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 03:49:19,648 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 03:49:19,648 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 03:49:19,648 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 03:49:19,649 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 03:49:19,649 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 03:49:19,649 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 03:49:19,649 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 03:49:19,650 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 03:49:19,650 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 03:49:19,650 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 03:49:19,650 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 03:49:19,651 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 03:49:19,651 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 03:49:19,651 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 03:49:19,651 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 03:49:19,651 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 03:49:19,652 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 03:49:19,652 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 03:49:19,652 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 03:49:19,652 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 03:49:19,652 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 03:49:19,653 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 03:49:19,653 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 03:49:19,653 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 03:49:19,653 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 03:49:19,653 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 03:49:19,654 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 03:49:19,654 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 03:49:19,654 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 03:49:19,701 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 03:49:19,716 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 03:49:19,721 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 03:49:19,722 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 03:49:19,722 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 03:49:19,723 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label55_true-unreach-call.c [2018-11-07 03:49:19,790 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0421d4d90/be89bcd00d7a4ae695646df50d9a015b/FLAG33e60286a [2018-11-07 03:49:20,460 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 03:49:20,461 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label55_true-unreach-call.c [2018-11-07 03:49:20,479 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0421d4d90/be89bcd00d7a4ae695646df50d9a015b/FLAG33e60286a [2018-11-07 03:49:20,497 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0421d4d90/be89bcd00d7a4ae695646df50d9a015b [2018-11-07 03:49:20,509 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 03:49:20,511 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 03:49:20,512 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 03:49:20,513 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 03:49:20,517 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 03:49:20,518 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:49:20" (1/1) ... [2018-11-07 03:49:20,521 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9260898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:49:20, skipping insertion in model container [2018-11-07 03:49:20,522 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:49:20" (1/1) ... [2018-11-07 03:49:20,533 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 03:49:20,615 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 03:49:21,424 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 03:49:21,430 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 03:49:21,706 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 03:49:21,727 INFO L193 MainTranslator]: Completed translation [2018-11-07 03:49:21,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:49:21 WrapperNode [2018-11-07 03:49:21,728 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 03:49:21,729 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 03:49:21,729 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 03:49:21,729 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 03:49:21,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:49:21" (1/1) ... [2018-11-07 03:49:21,925 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:49:21" (1/1) ... [2018-11-07 03:49:21,933 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 03:49:21,934 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 03:49:21,934 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 03:49:21,934 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 03:49:21,948 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:49:21" (1/1) ... [2018-11-07 03:49:21,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:49:21" (1/1) ... [2018-11-07 03:49:21,956 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:49:21" (1/1) ... [2018-11-07 03:49:21,956 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:49:21" (1/1) ... [2018-11-07 03:49:22,035 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:49:21" (1/1) ... [2018-11-07 03:49:22,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:49:21" (1/1) ... [2018-11-07 03:49:22,084 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:49:21" (1/1) ... [2018-11-07 03:49:22,100 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 03:49:22,101 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 03:49:22,101 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 03:49:22,101 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 03:49:22,103 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:49:21" (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 03:49:22,177 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 03:49:22,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 03:49:22,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 03:49:22,178 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 03:49:22,178 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 03:49:22,178 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 03:49:22,178 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 03:49:22,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 03:49:22,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 03:49:22,180 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 03:49:22,180 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 03:49:28,201 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 03:49:28,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:49:28 BoogieIcfgContainer [2018-11-07 03:49:28,202 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 03:49:28,203 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 03:49:28,204 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 03:49:28,207 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 03:49:28,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:49:20" (1/3) ... [2018-11-07 03:49:28,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fec3dda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:49:28, skipping insertion in model container [2018-11-07 03:49:28,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:49:21" (2/3) ... [2018-11-07 03:49:28,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fec3dda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:49:28, skipping insertion in model container [2018-11-07 03:49:28,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:49:28" (3/3) ... [2018-11-07 03:49:28,212 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label55_true-unreach-call.c [2018-11-07 03:49:28,222 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 03:49:28,232 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 03:49:28,246 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 03:49:28,288 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 03:49:28,288 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 03:49:28,288 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 03:49:28,288 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 03:49:28,288 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 03:49:28,289 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 03:49:28,289 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 03:49:28,289 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 03:49:28,322 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-11-07 03:49:28,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-11-07 03:49:28,334 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:49:28,335 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] [2018-11-07 03:49:28,337 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:49:28,343 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:49:28,343 INFO L82 PathProgramCache]: Analyzing trace with hash 886904748, now seen corresponding path program 1 times [2018-11-07 03:49:28,345 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:49:28,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:49:28,400 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:49:28,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:49:28,400 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:49:28,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:49:28,930 WARN L179 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 03:49:29,109 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 03:49:29,113 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:49:29,113 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 03:49:29,114 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:49:29,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 03:49:29,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 03:49:29,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 03:49:29,140 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 3 states. [2018-11-07 03:49:32,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:49:32,955 INFO L93 Difference]: Finished difference Result 1156 states and 2144 transitions. [2018-11-07 03:49:32,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 03:49:32,958 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2018-11-07 03:49:32,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:49:32,982 INFO L225 Difference]: With dead ends: 1156 [2018-11-07 03:49:32,982 INFO L226 Difference]: Without dead ends: 744 [2018-11-07 03:49:32,991 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 03:49:33,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-11-07 03:49:33,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2018-11-07 03:49:33,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-11-07 03:49:33,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1353 transitions. [2018-11-07 03:49:33,166 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1353 transitions. Word has length 64 [2018-11-07 03:49:33,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:49:33,167 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1353 transitions. [2018-11-07 03:49:33,167 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 03:49:33,168 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1353 transitions. [2018-11-07 03:49:33,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-11-07 03:49:33,183 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:49:33,184 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:49:33,184 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:49:33,185 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:49:33,186 INFO L82 PathProgramCache]: Analyzing trace with hash -350572761, now seen corresponding path program 1 times [2018-11-07 03:49:33,186 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:49:33,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:49:33,187 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:49:33,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:49:33,189 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:49:33,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:49:33,659 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:49:33,659 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:49:33,660 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 03:49:33,660 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:49:33,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 03:49:33,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 03:49:33,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 03:49:33,663 INFO L87 Difference]: Start difference. First operand 744 states and 1353 transitions. Second operand 6 states. [2018-11-07 03:49:40,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:49:40,567 INFO L93 Difference]: Finished difference Result 2184 states and 3997 transitions. [2018-11-07 03:49:40,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 03:49:40,570 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 157 [2018-11-07 03:49:40,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:49:40,584 INFO L225 Difference]: With dead ends: 2184 [2018-11-07 03:49:40,584 INFO L226 Difference]: Without dead ends: 1446 [2018-11-07 03:49:40,590 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 03:49:40,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1446 states. [2018-11-07 03:49:40,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1446 to 1425. [2018-11-07 03:49:40,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1425 states. [2018-11-07 03:49:40,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 2267 transitions. [2018-11-07 03:49:40,659 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 2267 transitions. Word has length 157 [2018-11-07 03:49:40,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:49:40,660 INFO L480 AbstractCegarLoop]: Abstraction has 1425 states and 2267 transitions. [2018-11-07 03:49:40,660 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 03:49:40,660 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 2267 transitions. [2018-11-07 03:49:40,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2018-11-07 03:49:40,674 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:49:40,674 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2018-11-07 03:49:40,674 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:49:40,675 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:49:40,675 INFO L82 PathProgramCache]: Analyzing trace with hash -10136240, now seen corresponding path program 1 times [2018-11-07 03:49:40,675 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:49:40,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:49:40,677 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:49:40,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:49:40,677 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:49:40,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:49:41,033 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 114 proven. 88 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 03:49:41,034 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 03:49:41,034 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 03:49:41,035 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 269 with the following transitions: [2018-11-07 03:49:41,037 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [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], [591], [593], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [764], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 03:49:41,116 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 03:49:41,116 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 03:49:43,456 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 03:49:43,458 INFO L272 AbstractInterpreter]: Visited 116 different actions 116 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 03:49:43,475 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:49:43,475 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 03:49:46,015 INFO L227 lantSequenceWeakener]: Weakened 260 states. On average, predicates are now at 78.15% of their original sizes. [2018-11-07 03:49:46,018 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 03:49:46,510 INFO L415 sIntCurrentIteration]: We unified 267 AI predicates to 267 [2018-11-07 03:49:46,510 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 03:49:46,511 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 03:49:46,513 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-11-07 03:49:46,513 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:49:46,514 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-07 03:49:46,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-07 03:49:46,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-07 03:49:46,517 INFO L87 Difference]: Start difference. First operand 1425 states and 2267 transitions. Second operand 7 states. [2018-11-07 03:49:49,313 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 03:50:12,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:50:12,908 INFO L93 Difference]: Finished difference Result 3184 states and 5088 transitions. [2018-11-07 03:50:12,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 03:50:12,908 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 268 [2018-11-07 03:50:12,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:50:12,917 INFO L225 Difference]: With dead ends: 3184 [2018-11-07 03:50:12,918 INFO L226 Difference]: Without dead ends: 1765 [2018-11-07 03:50:12,922 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 268 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-11-07 03:50:12,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1765 states. [2018-11-07 03:50:12,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1765 to 1763. [2018-11-07 03:50:12,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1763 states. [2018-11-07 03:50:12,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1763 states to 1763 states and 2612 transitions. [2018-11-07 03:50:12,969 INFO L78 Accepts]: Start accepts. Automaton has 1763 states and 2612 transitions. Word has length 268 [2018-11-07 03:50:12,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:50:12,969 INFO L480 AbstractCegarLoop]: Abstraction has 1763 states and 2612 transitions. [2018-11-07 03:50:12,970 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-07 03:50:12,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1763 states and 2612 transitions. [2018-11-07 03:50:12,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2018-11-07 03:50:12,979 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:50:12,980 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-07 03:50:12,980 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:50:12,980 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:50:12,980 INFO L82 PathProgramCache]: Analyzing trace with hash 448622162, now seen corresponding path program 1 times [2018-11-07 03:50:12,981 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:50:12,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:50:12,982 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:50:12,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:50:12,982 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:50:13,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:50:13,345 WARN L179 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 03:50:13,571 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 177 proven. 197 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-11-07 03:50:13,571 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 03:50:13,572 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 03:50:13,572 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 361 with the following transitions: [2018-11-07 03:50:13,572 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [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], [591], [593], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [764], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 03:50:13,578 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 03:50:13,579 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 03:50:14,706 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 03:50:21,018 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 03:50:21,019 INFO L272 AbstractInterpreter]: Visited 120 different actions 351 times. Merged at 5 different actions 13 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 03:50:21,025 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:50:21,025 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 03:50:25,164 INFO L227 lantSequenceWeakener]: Weakened 78 states. On average, predicates are now at 79.66% of their original sizes. [2018-11-07 03:50:25,164 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 03:51:38,276 INFO L415 sIntCurrentIteration]: We unified 359 AI predicates to 359 [2018-11-07 03:51:38,276 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 03:51:38,277 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 03:51:38,277 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2018-11-07 03:51:38,277 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:51:38,278 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-07 03:51:38,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-07 03:51:38,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2018-11-07 03:51:38,279 INFO L87 Difference]: Start difference. First operand 1763 states and 2612 transitions. Second operand 16 states. Received shutdown request... [2018-11-07 03:53:27,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-07 03:53:27,748 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 03:53:27,754 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 03:53:27,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 03:53:27 BoogieIcfgContainer [2018-11-07 03:53:27,754 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 03:53:27,755 INFO L168 Benchmark]: Toolchain (without parser) took 247245.07 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.8 GB in the end (delta: -1.4 GB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-11-07 03:53:27,757 INFO L168 Benchmark]: CDTParser took 0.21 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. [2018-11-07 03:53:27,757 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1215.69 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 03:53:27,758 INFO L168 Benchmark]: Boogie Procedure Inliner took 204.51 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 724.6 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -850.6 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2018-11-07 03:53:27,759 INFO L168 Benchmark]: Boogie Preprocessor took 166.87 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. [2018-11-07 03:53:27,760 INFO L168 Benchmark]: RCFGBuilder took 6101.37 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 248.8 MB). Peak memory consumption was 248.8 MB. Max. memory is 7.1 GB. [2018-11-07 03:53:27,761 INFO L168 Benchmark]: TraceAbstraction took 239551.07 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 2.8 GB in the end (delta: -872.2 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-11-07 03:53:27,767 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 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1215.69 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 204.51 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 724.6 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -850.6 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 166.87 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 6101.37 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 248.8 MB). Peak memory consumption was 248.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 239551.07 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 2.8 GB in the end (delta: -872.2 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 178]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 178). Cancelled while BasicCegarLoop was constructing difference of abstraction (1763states) and FLOYD_HOARE automaton (currently 18 states, 16 states before enhancement),while ReachableStatesComputation was computing reachable states (550 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 239.4s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 146.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 667 SDtfs, 4035 SDslu, 292 SDs, 0 SdLazy, 5184 SolverSat, 1802 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 58.0s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 649 GetRequests, 503 SyntacticMatches, 111 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 633 ImplicationChecksByTransitivity, 74.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1763occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 9.8s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9960961013103671 AbsIntWeakeningRatio, 0.0926517571884984 AbsIntAvgWeakeningVarsNumRemoved, 564.6549520766773 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 23 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 849 NumberOfCodeBlocks, 849 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 845 ConstructedInterpolants, 0 QuantifiedInterpolants, 672821 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 427/712 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown