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/Problem19_label38_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-24 02:25:32,252 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 02:25:32,255 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 02:25:32,270 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 02:25:32,270 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 02:25:32,272 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 02:25:32,273 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 02:25:32,275 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 02:25:32,276 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 02:25:32,277 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 02:25:32,278 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 02:25:32,278 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 02:25:32,279 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 02:25:32,280 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 02:25:32,281 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 02:25:32,282 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 02:25:32,283 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 02:25:32,287 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 02:25:32,289 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 02:25:32,291 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 02:25:32,300 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 02:25:32,301 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 02:25:32,308 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 02:25:32,308 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 02:25:32,309 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 02:25:32,309 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 02:25:32,310 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 02:25:32,313 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 02:25:32,314 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 02:25:32,315 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 02:25:32,315 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 02:25:32,316 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 02:25:32,316 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 02:25:32,316 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 02:25:32,319 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 02:25:32,320 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 02:25:32,320 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 02:25:32,338 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 02:25:32,338 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 02:25:32,339 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 02:25:32,339 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 02:25:32,339 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 02:25:32,340 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 02:25:32,340 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 02:25:32,340 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 02:25:32,340 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 02:25:32,340 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 02:25:32,341 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 02:25:32,341 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 02:25:32,342 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 02:25:32,342 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 02:25:32,342 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 02:25:32,342 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 02:25:32,342 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 02:25:32,343 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 02:25:32,343 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 02:25:32,343 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 02:25:32,343 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 02:25:32,343 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 02:25:32,344 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 02:25:32,344 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 02:25:32,344 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 02:25:32,344 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 02:25:32,345 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 02:25:32,345 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 02:25:32,345 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 02:25:32,345 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 02:25:32,345 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 02:25:32,346 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 02:25:32,346 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 02:25:32,346 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 02:25:32,415 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 02:25:32,430 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 02:25:32,434 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 02:25:32,436 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 02:25:32,437 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 02:25:32,437 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label38_true-unreach-call.c [2018-10-24 02:25:32,505 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/82c8efcca/2f0ae804674d41d8bd634dd7a564eb8d/FLAG6eae4e762 [2018-10-24 02:25:33,444 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 02:25:33,444 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label38_true-unreach-call.c [2018-10-24 02:25:33,498 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/82c8efcca/2f0ae804674d41d8bd634dd7a564eb8d/FLAG6eae4e762 [2018-10-24 02:25:33,517 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/82c8efcca/2f0ae804674d41d8bd634dd7a564eb8d [2018-10-24 02:25:33,531 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 02:25:33,534 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 02:25:33,535 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 02:25:33,535 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 02:25:33,539 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 02:25:33,540 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:25:33" (1/1) ... [2018-10-24 02:25:33,543 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15e6fa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:25:33, skipping insertion in model container [2018-10-24 02:25:33,544 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:25:33" (1/1) ... [2018-10-24 02:25:33,555 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 02:25:33,818 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 02:25:35,835 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 02:25:35,841 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 02:25:37,088 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 02:25:37,142 INFO L193 MainTranslator]: Completed translation [2018-10-24 02:25:37,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:25:37 WrapperNode [2018-10-24 02:25:37,143 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 02:25:37,144 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 02:25:37,144 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 02:25:37,144 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 02:25:37,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:25:37" (1/1) ... [2018-10-24 02:25:37,235 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:25:37" (1/1) ... [2018-10-24 02:25:37,892 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 02:25:37,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 02:25:37,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 02:25:37,893 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 02:25:37,904 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:25:37" (1/1) ... [2018-10-24 02:25:37,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:25:37" (1/1) ... [2018-10-24 02:25:37,969 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:25:37" (1/1) ... [2018-10-24 02:25:37,970 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:25:37" (1/1) ... [2018-10-24 02:25:38,164 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:25:37" (1/1) ... [2018-10-24 02:25:38,213 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:25:37" (1/1) ... [2018-10-24 02:25:38,274 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:25:37" (1/1) ... [2018-10-24 02:25:38,350 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 02:25:38,350 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 02:25:38,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 02:25:38,353 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 02:25:38,354 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:25:37" (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 02:25:38,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 02:25:38,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 02:25:38,420 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-10-24 02:25:38,420 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-10-24 02:25:38,421 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-10-24 02:25:38,421 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-10-24 02:25:38,421 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-24 02:25:38,421 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-24 02:25:38,421 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-24 02:25:38,421 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-24 02:25:38,422 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 02:25:38,422 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 02:25:38,422 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 02:25:38,422 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 02:25:38,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 02:25:38,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 02:25:38,423 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 02:25:38,423 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 02:25:55,505 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 02:25:55,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:25:55 BoogieIcfgContainer [2018-10-24 02:25:55,506 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 02:25:55,507 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 02:25:55,507 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 02:25:55,511 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 02:25:55,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:25:33" (1/3) ... [2018-10-24 02:25:55,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2923291f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:25:55, skipping insertion in model container [2018-10-24 02:25:55,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:25:37" (2/3) ... [2018-10-24 02:25:55,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2923291f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:25:55, skipping insertion in model container [2018-10-24 02:25:55,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:25:55" (3/3) ... [2018-10-24 02:25:55,514 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label38_true-unreach-call.c [2018-10-24 02:25:55,523 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 02:25:55,535 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 02:25:55,549 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 02:25:55,605 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 02:25:55,605 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 02:25:55,606 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 02:25:55,606 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 02:25:55,606 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 02:25:55,606 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 02:25:55,606 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 02:25:55,606 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 02:25:55,672 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-10-24 02:25:55,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-10-24 02:25:55,682 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:25:55,683 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] [2018-10-24 02:25:55,686 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:25:55,691 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:25:55,691 INFO L82 PathProgramCache]: Analyzing trace with hash -217079404, now seen corresponding path program 1 times [2018-10-24 02:25:55,693 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:25:55,744 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:25:55,744 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:25:55,744 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:25:55,744 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:25:55,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:25:56,239 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 02:25:56,242 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 02:25:56,242 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 02:25:56,243 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:25:56,248 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 02:25:56,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 02:25:56,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 02:25:56,270 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-10-24 02:26:11,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:26:11,615 INFO L93 Difference]: Finished difference Result 4999 states and 9420 transitions. [2018-10-24 02:26:11,619 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 02:26:11,620 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66 [2018-10-24 02:26:11,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:26:11,667 INFO L225 Difference]: With dead ends: 4999 [2018-10-24 02:26:11,668 INFO L226 Difference]: Without dead ends: 3219 [2018-10-24 02:26:11,681 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 02:26:11,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3219 states. [2018-10-24 02:26:11,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3219 to 3215. [2018-10-24 02:26:11,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3215 states. [2018-10-24 02:26:11,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3215 states to 3215 states and 5845 transitions. [2018-10-24 02:26:11,894 INFO L78 Accepts]: Start accepts. Automaton has 3215 states and 5845 transitions. Word has length 66 [2018-10-24 02:26:11,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:26:11,895 INFO L481 AbstractCegarLoop]: Abstraction has 3215 states and 5845 transitions. [2018-10-24 02:26:11,896 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 02:26:11,896 INFO L276 IsEmpty]: Start isEmpty. Operand 3215 states and 5845 transitions. [2018-10-24 02:26:11,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-10-24 02:26:11,904 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:26:11,905 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 02:26:11,905 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:26:11,906 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:26:11,906 INFO L82 PathProgramCache]: Analyzing trace with hash 1232037643, now seen corresponding path program 1 times [2018-10-24 02:26:11,906 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:26:11,907 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:26:11,907 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:26:11,907 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:26:11,908 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:26:11,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:26:12,284 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 02:26:12,674 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 02:26:12,675 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 02:26:12,675 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 02:26:12,675 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:26:12,678 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 02:26:12,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 02:26:12,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 02:26:12,679 INFO L87 Difference]: Start difference. First operand 3215 states and 5845 transitions. Second operand 6 states. [2018-10-24 02:26:42,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:26:42,950 INFO L93 Difference]: Finished difference Result 9331 states and 16910 transitions. [2018-10-24 02:26:42,957 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 02:26:42,957 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 138 [2018-10-24 02:26:42,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:26:42,993 INFO L225 Difference]: With dead ends: 9331 [2018-10-24 02:26:42,994 INFO L226 Difference]: Without dead ends: 6122 [2018-10-24 02:26:43,004 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 02:26:43,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6122 states. [2018-10-24 02:26:43,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6122 to 6084. [2018-10-24 02:26:43,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6084 states. [2018-10-24 02:26:43,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6084 states to 6084 states and 9616 transitions. [2018-10-24 02:26:43,174 INFO L78 Accepts]: Start accepts. Automaton has 6084 states and 9616 transitions. Word has length 138 [2018-10-24 02:26:43,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:26:43,175 INFO L481 AbstractCegarLoop]: Abstraction has 6084 states and 9616 transitions. [2018-10-24 02:26:43,175 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 02:26:43,175 INFO L276 IsEmpty]: Start isEmpty. Operand 6084 states and 9616 transitions. [2018-10-24 02:26:43,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-10-24 02:26:43,186 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:26:43,187 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:26:43,187 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:26:43,187 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:26:43,188 INFO L82 PathProgramCache]: Analyzing trace with hash -226672055, now seen corresponding path program 1 times [2018-10-24 02:26:43,189 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:26:43,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:26:43,190 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:26:43,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:26:43,190 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:26:43,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:26:43,683 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 02:26:43,684 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 02:26:43,684 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 02:26:43,684 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:26:43,685 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 02:26:43,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 02:26:43,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-24 02:26:43,685 INFO L87 Difference]: Start difference. First operand 6084 states and 9616 transitions. Second operand 6 states. [2018-10-24 02:27:37,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:27:37,102 INFO L93 Difference]: Finished difference Result 24241 states and 39703 transitions. [2018-10-24 02:27:37,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-24 02:27:37,104 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 156 [2018-10-24 02:27:37,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:27:37,204 INFO L225 Difference]: With dead ends: 24241 [2018-10-24 02:27:37,205 INFO L226 Difference]: Without dead ends: 18163 [2018-10-24 02:27:37,241 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-24 02:27:37,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18163 states. [2018-10-24 02:27:37,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18163 to 18089. [2018-10-24 02:27:37,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18089 states. [2018-10-24 02:27:37,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18089 states to 18089 states and 25636 transitions. [2018-10-24 02:27:37,680 INFO L78 Accepts]: Start accepts. Automaton has 18089 states and 25636 transitions. Word has length 156 [2018-10-24 02:27:37,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:27:37,681 INFO L481 AbstractCegarLoop]: Abstraction has 18089 states and 25636 transitions. [2018-10-24 02:27:37,681 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 02:27:37,681 INFO L276 IsEmpty]: Start isEmpty. Operand 18089 states and 25636 transitions. [2018-10-24 02:27:37,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2018-10-24 02:27:37,690 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:27:37,691 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:27:37,691 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:27:37,691 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:27:37,691 INFO L82 PathProgramCache]: Analyzing trace with hash -294519992, now seen corresponding path program 1 times [2018-10-24 02:27:37,691 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:27:37,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:27:37,693 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:27:37,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:27:37,693 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:27:37,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:27:37,966 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 02:27:37,967 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 02:27:37,967 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 02:27:37,967 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:27:37,968 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 02:27:37,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 02:27:37,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 02:27:37,969 INFO L87 Difference]: Start difference. First operand 18089 states and 25636 transitions. Second operand 5 states. [2018-10-24 02:28:07,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:28:07,719 INFO L93 Difference]: Finished difference Result 56344 states and 85055 transitions. [2018-10-24 02:28:07,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 02:28:07,720 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 201 [2018-10-24 02:28:07,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:28:07,888 INFO L225 Difference]: With dead ends: 56344 [2018-10-24 02:28:07,888 INFO L226 Difference]: Without dead ends: 38261 [2018-10-24 02:28:07,947 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 02:28:07,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38261 states. [2018-10-24 02:28:08,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38261 to 37204. [2018-10-24 02:28:08,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37204 states. [2018-10-24 02:28:08,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37204 states to 37204 states and 50508 transitions. [2018-10-24 02:28:08,867 INFO L78 Accepts]: Start accepts. Automaton has 37204 states and 50508 transitions. Word has length 201 [2018-10-24 02:28:08,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:28:08,868 INFO L481 AbstractCegarLoop]: Abstraction has 37204 states and 50508 transitions. [2018-10-24 02:28:08,868 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 02:28:08,868 INFO L276 IsEmpty]: Start isEmpty. Operand 37204 states and 50508 transitions. [2018-10-24 02:28:08,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2018-10-24 02:28:08,880 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:28:08,881 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, 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] [2018-10-24 02:28:08,881 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:28:08,881 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:28:08,882 INFO L82 PathProgramCache]: Analyzing trace with hash 548752070, now seen corresponding path program 1 times [2018-10-24 02:28:08,882 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:28:08,883 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:28:08,883 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:28:08,883 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:28:08,883 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:28:08,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:28:09,431 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 118 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 02:28:09,431 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 02:28:09,431 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 02:28:09,432 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 222 with the following transitions: [2018-10-24 02:28:09,435 INFO L202 CegarAbsIntRunner]: [0], [1], [5227], [5234], [5242], [5250], [5258], [5266], [5274], [5282], [5290], [5298], [5306], [5314], [5322], [5330], [5338], [5346], [5354], [5362], [5370], [5378], [5386], [5394], [5402], [5410], [5418], [5426], [5434], [5442], [5450], [5458], [5466], [5474], [5482], [5490], [5498], [5506], [5514], [5522], [5530], [5538], [5546], [5554], [5562], [5570], [5578], [5586], [5594], [5602], [5610], [5618], [5626], [5634], [5642], [5650], [5654], [5656], [5659], [5667], [5675], [5683], [5691], [5699], [5707], [5715], [5727], [5731], [5742], [5745], [5746], [5750], [5754], [5758], [5762], [5766], [5770], [5774], [5778], [5781], [6802], [6806], [6810], [6816], [6820], [6822], [6837], [6838], [6839], [6841], [6842] [2018-10-24 02:28:09,527 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 02:28:09,527 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 02:28:12,130 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 02:28:12,132 INFO L272 AbstractInterpreter]: Visited 87 different actions 87 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-24 02:28:12,147 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:28:12,147 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 02:28:14,731 INFO L232 lantSequenceWeakener]: Weakened 213 states. On average, predicates are now at 75.97% of their original sizes. [2018-10-24 02:28:14,731 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 02:28:15,134 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 02:28:15,135 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 02:28:15,135 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-10-24 02:28:15,136 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:28:15,136 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 02:28:15,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 02:28:15,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 02:28:15,137 INFO L87 Difference]: Start difference. First operand 37204 states and 50508 transitions. Second operand 7 states. [2018-10-24 02:28:19,858 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-24 02:29:12,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 02:29:12,680 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 02:29:12,685 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 02:29:12,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:29:12 BoogieIcfgContainer [2018-10-24 02:29:12,685 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 02:29:12,686 INFO L168 Benchmark]: Toolchain (without parser) took 219154.39 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -405.9 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-10-24 02:29:12,687 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 02:29:12,688 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3608.43 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 979.7 MB in the end (delta: 391.1 MB). Peak memory consumption was 391.1 MB. Max. memory is 7.1 GB. [2018-10-24 02:29:12,689 INFO L168 Benchmark]: Boogie Procedure Inliner took 749.07 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 846.7 MB). Free memory was 979.7 MB in the beginning and 2.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. [2018-10-24 02:29:12,690 INFO L168 Benchmark]: Boogie Preprocessor took 457.20 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 62.3 MB). Peak memory consumption was 62.3 MB. Max. memory is 7.1 GB. [2018-10-24 02:29:12,691 INFO L168 Benchmark]: RCFGBuilder took 17155.79 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 172.5 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 491.7 MB). Peak memory consumption was 664.1 MB. Max. memory is 7.1 GB. [2018-10-24 02:29:12,692 INFO L168 Benchmark]: TraceAbstraction took 197178.38 ms. Allocated memory was 2.5 GB in the beginning and 4.1 GB in the end (delta: 1.5 GB). Free memory was 1.7 GB in the beginning and 1.8 GB in the end (delta: -102.3 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-10-24 02:29:12,700 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3608.43 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 979.7 MB in the end (delta: 391.1 MB). Peak memory consumption was 391.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 749.07 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 846.7 MB). Free memory was 979.7 MB in the beginning and 2.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 457.20 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 62.3 MB). Peak memory consumption was 62.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 17155.79 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 172.5 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 491.7 MB). Peak memory consumption was 664.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 197178.38 ms. Allocated memory was 2.5 GB in the beginning and 4.1 GB in the end (delta: 1.5 GB). Free memory was 1.7 GB in the beginning and 1.8 GB in the end (delta: -102.3 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 193]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 193). Cancelled while BasicCegarLoop was constructing difference of abstraction (37204states) and FLOYD_HOARE automaton (currently 7 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (13897 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 197.0s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 186.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2683 SDtfs, 22213 SDslu, 3236 SDs, 0 SdLazy, 40503 SolverSat, 10286 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 141.3s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 256 GetRequests, 225 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37204occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.7s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9955944055944055 AbsIntWeakeningRatio, 0.12272727272727273 AbsIntAvgWeakeningVarsNumRemoved, 1047.540909090909 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.7s AutomataMinimizationTime, 4 MinimizatonAttempts, 1173 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 782 NumberOfCodeBlocks, 782 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 777 ConstructedInterpolants, 0 QuantifiedInterpolants, 513340 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 300/368 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown