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/Problem03_label44_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 23:42:31,279 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 23:42:31,281 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 23:42:31,296 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 23:42:31,297 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 23:42:31,299 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 23:42:31,300 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 23:42:31,302 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 23:42:31,305 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 23:42:31,306 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 23:42:31,308 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 23:42:31,308 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 23:42:31,309 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 23:42:31,310 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 23:42:31,312 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 23:42:31,313 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 23:42:31,314 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 23:42:31,317 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 23:42:31,319 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 23:42:31,324 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 23:42:31,326 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 23:42:31,330 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 23:42:31,336 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-23 23:42:31,341 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-23 23:42:31,342 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-23 23:42:31,345 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-23 23:42:31,347 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-23 23:42:31,349 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-23 23:42:31,352 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-23 23:42:31,355 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-23 23:42:31,355 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-23 23:42:31,357 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-23 23:42:31,359 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-23 23:42:31,360 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-23 23:42:31,361 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-23 23:42:31,364 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-23 23:42:31,365 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 [2018-10-23 23:42:31,397 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 23:42:31,397 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 23:42:31,398 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 23:42:31,398 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-23 23:42:31,402 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-23 23:42:31,403 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-23 23:42:31,403 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-23 23:42:31,403 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-23 23:42:31,403 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-23 23:42:31,403 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-23 23:42:31,404 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-23 23:42:31,404 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-23 23:42:31,405 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 23:42:31,405 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 23:42:31,405 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 23:42:31,405 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 23:42:31,407 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 23:42:31,408 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 23:42:31,408 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 23:42:31,408 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 23:42:31,408 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 23:42:31,408 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 23:42:31,409 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 23:42:31,409 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 23:42:31,409 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 23:42:31,409 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 23:42:31,410 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 23:42:31,410 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 23:42:31,410 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-23 23:42:31,410 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 23:42:31,410 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 23:42:31,411 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 23:42:31,411 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 23:42:31,411 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-23 23:42:31,471 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 23:42:31,491 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 23:42:31,495 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 23:42:31,497 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 23:42:31,497 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 23:42:31,498 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label44_true-unreach-call.c [2018-10-23 23:42:31,563 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/48065395d/2a8caede33a14491ad7df03786db6f6d/FLAGd4a1cbb52 [2018-10-23 23:42:32,311 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 23:42:32,312 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label44_true-unreach-call.c [2018-10-23 23:42:32,333 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/48065395d/2a8caede33a14491ad7df03786db6f6d/FLAGd4a1cbb52 [2018-10-23 23:42:32,352 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/48065395d/2a8caede33a14491ad7df03786db6f6d [2018-10-23 23:42:32,365 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 23:42:32,368 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 23:42:32,369 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 23:42:32,370 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 23:42:32,374 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 23:42:32,375 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:42:32" (1/1) ... [2018-10-23 23:42:32,379 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cf5b06d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:42:32, skipping insertion in model container [2018-10-23 23:42:32,379 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:42:32" (1/1) ... [2018-10-23 23:42:32,392 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 23:42:32,475 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 23:42:33,177 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 23:42:33,184 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 23:42:33,641 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 23:42:33,672 INFO L193 MainTranslator]: Completed translation [2018-10-23 23:42:33,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:42:33 WrapperNode [2018-10-23 23:42:33,673 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 23:42:33,676 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 23:42:33,676 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 23:42:33,677 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 23:42:33,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:42:33" (1/1) ... [2018-10-23 23:42:33,731 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:42:33" (1/1) ... [2018-10-23 23:42:34,017 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 23:42:34,019 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 23:42:34,019 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 23:42:34,019 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 23:42:34,031 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:42:33" (1/1) ... [2018-10-23 23:42:34,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:42:33" (1/1) ... [2018-10-23 23:42:34,041 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:42:33" (1/1) ... [2018-10-23 23:42:34,042 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:42:33" (1/1) ... [2018-10-23 23:42:34,092 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:42:33" (1/1) ... [2018-10-23 23:42:34,109 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:42:33" (1/1) ... [2018-10-23 23:42:34,129 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:42:33" (1/1) ... [2018-10-23 23:42:34,146 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 23:42:34,147 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 23:42:34,147 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 23:42:34,147 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 23:42:34,149 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:42:33" (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 [2018-10-23 23:42:34,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-23 23:42:34,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-23 23:42:34,235 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-23 23:42:34,235 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-23 23:42:34,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 23:42:34,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 23:42:34,236 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-23 23:42:34,236 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-23 23:42:39,601 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 23:42:39,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:42:39 BoogieIcfgContainer [2018-10-23 23:42:39,604 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 23:42:39,605 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 23:42:39,605 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 23:42:39,610 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 23:42:39,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 11:42:32" (1/3) ... [2018-10-23 23:42:39,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d910ed6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:42:39, skipping insertion in model container [2018-10-23 23:42:39,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:42:33" (2/3) ... [2018-10-23 23:42:39,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d910ed6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:42:39, skipping insertion in model container [2018-10-23 23:42:39,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:42:39" (3/3) ... [2018-10-23 23:42:39,617 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label44_true-unreach-call.c [2018-10-23 23:42:39,630 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 23:42:39,646 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 23:42:39,669 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 23:42:39,746 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 23:42:39,747 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 23:42:39,747 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 23:42:39,747 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 23:42:39,747 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 23:42:39,747 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 23:42:39,748 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 23:42:39,748 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 23:42:39,798 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2018-10-23 23:42:39,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2018-10-23 23:42:39,826 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:42:39,828 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 23:42:39,831 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:42:39,841 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:42:39,842 INFO L82 PathProgramCache]: Analyzing trace with hash -1268744215, now seen corresponding path program 1 times [2018-10-23 23:42:39,845 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:42:39,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:42:39,893 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:42:39,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:42:39,894 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:42:40,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:42:40,793 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 4 [2018-10-23 23:42:41,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 23:42:41,150 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 23:42:41,150 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 23:42:41,150 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:42:41,157 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 23:42:41,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 23:42:41,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 23:42:41,181 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 4 states. [2018-10-23 23:42:45,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 23:42:45,001 INFO L93 Difference]: Finished difference Result 1086 states and 1949 transitions. [2018-10-23 23:42:45,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 23:42:45,005 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 184 [2018-10-23 23:42:45,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 23:42:45,034 INFO L225 Difference]: With dead ends: 1086 [2018-10-23 23:42:45,035 INFO L226 Difference]: Without dead ends: 768 [2018-10-23 23:42:45,043 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 23:42:45,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2018-10-23 23:42:45,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 525. [2018-10-23 23:42:45,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 525 states. [2018-10-23 23:42:45,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 910 transitions. [2018-10-23 23:42:45,152 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 910 transitions. Word has length 184 [2018-10-23 23:42:45,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 23:42:45,154 INFO L481 AbstractCegarLoop]: Abstraction has 525 states and 910 transitions. [2018-10-23 23:42:45,154 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 23:42:45,154 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 910 transitions. [2018-10-23 23:42:45,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2018-10-23 23:42:45,167 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:42:45,167 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 23:42:45,168 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:42:45,168 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:42:45,168 INFO L82 PathProgramCache]: Analyzing trace with hash -1064364326, now seen corresponding path program 1 times [2018-10-23 23:42:45,168 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:42:45,172 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:42:45,172 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:42:45,172 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:42:45,172 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:42:45,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:42:45,479 WARN L179 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-23 23:42:45,536 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 23:42:45,536 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 23:42:45,537 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-23 23:42:45,537 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:42:45,541 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 23:42:45,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 23:42:45,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-23 23:42:45,542 INFO L87 Difference]: Start difference. First operand 525 states and 910 transitions. Second operand 5 states. [2018-10-23 23:42:49,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 23:42:49,018 INFO L93 Difference]: Finished difference Result 1613 states and 2895 transitions. [2018-10-23 23:42:49,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 23:42:49,019 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 195 [2018-10-23 23:42:49,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 23:42:49,034 INFO L225 Difference]: With dead ends: 1613 [2018-10-23 23:42:49,035 INFO L226 Difference]: Without dead ends: 1094 [2018-10-23 23:42:49,042 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-23 23:42:49,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1094 states. [2018-10-23 23:42:49,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1094 to 864. [2018-10-23 23:42:49,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 864 states. [2018-10-23 23:42:49,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1422 transitions. [2018-10-23 23:42:49,111 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1422 transitions. Word has length 195 [2018-10-23 23:42:49,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 23:42:49,111 INFO L481 AbstractCegarLoop]: Abstraction has 864 states and 1422 transitions. [2018-10-23 23:42:49,111 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 23:42:49,112 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1422 transitions. [2018-10-23 23:42:49,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2018-10-23 23:42:49,117 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:42:49,117 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 23:42:49,117 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:42:49,118 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:42:49,118 INFO L82 PathProgramCache]: Analyzing trace with hash -262902419, now seen corresponding path program 1 times [2018-10-23 23:42:49,118 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:42:49,119 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:42:49,119 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:42:49,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:42:49,120 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:42:49,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:42:49,483 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 23:42:49,483 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 23:42:49,484 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 23:42:49,484 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:42:49,485 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 23:42:49,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 23:42:49,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 23:42:49,486 INFO L87 Difference]: Start difference. First operand 864 states and 1422 transitions. Second operand 3 states. [2018-10-23 23:42:52,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 23:42:52,167 INFO L93 Difference]: Finished difference Result 2471 states and 4181 transitions. [2018-10-23 23:42:52,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 23:42:52,175 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 197 [2018-10-23 23:42:52,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 23:42:52,193 INFO L225 Difference]: With dead ends: 2471 [2018-10-23 23:42:52,194 INFO L226 Difference]: Without dead ends: 1613 [2018-10-23 23:42:52,202 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 23:42:52,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1613 states. [2018-10-23 23:42:52,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1613 to 1610. [2018-10-23 23:42:52,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1610 states. [2018-10-23 23:42:52,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1610 states to 1610 states and 2542 transitions. [2018-10-23 23:42:52,294 INFO L78 Accepts]: Start accepts. Automaton has 1610 states and 2542 transitions. Word has length 197 [2018-10-23 23:42:52,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 23:42:52,296 INFO L481 AbstractCegarLoop]: Abstraction has 1610 states and 2542 transitions. [2018-10-23 23:42:52,296 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 23:42:52,296 INFO L276 IsEmpty]: Start isEmpty. Operand 1610 states and 2542 transitions. [2018-10-23 23:42:52,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2018-10-23 23:42:52,305 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:42:52,305 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 23:42:52,306 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:42:52,306 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:42:52,306 INFO L82 PathProgramCache]: Analyzing trace with hash -128043501, now seen corresponding path program 1 times [2018-10-23 23:42:52,306 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:42:52,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:42:52,308 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:42:52,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:42:52,308 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:42:52,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:42:52,569 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2018-10-23 23:42:52,650 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-23 23:42:52,651 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 23:42:52,651 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-23 23:42:52,653 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 206 with the following transitions: [2018-10-23 23:42:52,655 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [10], [12], [13], [16], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [933], [935], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-23 23:42:52,754 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-23 23:42:52,754 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-10-23 23:47:06,655 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-10-23 23:47:06,656 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-10-23 23:47:06,658 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-23 23:47:06,658 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 23:47:06,658 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 23:47:06,673 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:47:06,673 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-23 23:47:06,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:47:06,922 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 23:47:06,967 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-23 23:47:07,169 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 23:47:07,169 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 23:47:07,175 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 23:47:07,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 11:47:07 BoogieIcfgContainer [2018-10-23 23:47:07,176 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 23:47:07,177 INFO L168 Benchmark]: Toolchain (without parser) took 274810.94 ms. Allocated memory was 1.5 GB in the beginning and 3.5 GB in the end (delta: 2.0 GB). Free memory was 1.4 GB in the beginning and 2.7 GB in the end (delta: -1.3 GB). Peak memory consumption was 670.0 MB. Max. memory is 7.1 GB. [2018-10-23 23:47:07,178 INFO L168 Benchmark]: CDTParser took 0.22 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. [2018-10-23 23:47:07,179 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1304.71 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: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-10-23 23:47:07,180 INFO L168 Benchmark]: Boogie Procedure Inliner took 341.83 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 719.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -844.3 MB). Peak memory consumption was 40.4 MB. Max. memory is 7.1 GB. [2018-10-23 23:47:07,181 INFO L168 Benchmark]: Boogie Preprocessor took 127.94 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2018-10-23 23:47:07,182 INFO L168 Benchmark]: RCFGBuilder took 5456.72 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.9 GB in the end (delta: 252.0 MB). Peak memory consumption was 252.0 MB. Max. memory is 7.1 GB. [2018-10-23 23:47:07,183 INFO L168 Benchmark]: TraceAbstraction took 267571.06 ms. Allocated memory was 2.2 GB in the beginning and 3.5 GB in the end (delta: 1.3 GB). Free memory was 1.9 GB in the beginning and 2.7 GB in the end (delta: -831.7 MB). Peak memory consumption was 454.4 MB. Max. memory is 7.1 GB. [2018-10-23 23:47:07,189 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 1304.71 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: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 341.83 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 719.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -844.3 MB). Peak memory consumption was 40.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 127.94 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5456.72 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.9 GB in the end (delta: 252.0 MB). Peak memory consumption was 252.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 267571.06 ms. Allocated memory was 2.2 GB in the beginning and 3.5 GB in the end (delta: 1.3 GB). Free memory was 1.9 GB in the beginning and 2.7 GB in the end (delta: -831.7 MB). Peak memory consumption was 454.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1566]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1566). Cancelled while BasicCegarLoop was analyzing trace of length 206 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 6 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 312 locations, 1 error locations. TIMEOUT Result, 267.4s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 10.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 798 SDtfs, 1692 SDslu, 345 SDs, 0 SdLazy, 3249 SolverSat, 721 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1610occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 254.0s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 476 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 576 NumberOfCodeBlocks, 576 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 573 ConstructedInterpolants, 0 QuantifiedInterpolants, 442919 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 16/16 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown