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/Problem15_label59_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 03:17:42,597 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 03:17:42,599 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 03:17:42,611 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 03:17:42,611 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 03:17:42,612 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 03:17:42,613 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 03:17:42,615 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 03:17:42,617 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 03:17:42,618 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 03:17:42,619 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 03:17:42,619 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 03:17:42,620 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 03:17:42,621 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 03:17:42,622 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 03:17:42,623 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 03:17:42,624 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 03:17:42,626 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 03:17:42,627 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 03:17:42,629 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 03:17:42,630 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 03:17:42,631 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 03:17:42,634 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 03:17:42,634 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 03:17:42,634 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 03:17:42,635 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 03:17:42,636 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 03:17:42,637 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 03:17:42,638 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 03:17:42,639 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 03:17:42,639 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 03:17:42,640 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 03:17:42,640 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 03:17:42,640 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 03:17:42,641 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 03:17:42,642 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 03:17:42,642 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 [2018-10-27 03:17:42,675 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 03:17:42,675 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 03:17:42,677 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 03:17:42,677 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 03:17:42,677 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 03:17:42,677 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 03:17:42,677 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 03:17:42,678 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 03:17:42,678 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 03:17:42,678 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 03:17:42,678 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 03:17:42,678 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 03:17:42,679 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 03:17:42,680 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 03:17:42,680 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 03:17:42,680 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 03:17:42,680 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 03:17:42,680 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 03:17:42,681 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 03:17:42,682 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 03:17:42,683 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 03:17:42,683 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 03:17:42,683 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 03:17:42,683 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 03:17:42,684 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 03:17:42,684 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 03:17:42,684 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 03:17:42,685 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 03:17:42,685 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 03:17:42,685 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 03:17:42,685 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 03:17:42,685 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 03:17:42,685 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 03:17:42,686 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 03:17:42,760 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 03:17:42,777 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 03:17:42,781 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 03:17:42,782 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 03:17:42,783 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 03:17:42,783 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label59_true-unreach-call.c [2018-10-27 03:17:42,851 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8b73eec9e/381d86374381414999b0a6b57957ca86/FLAG5f220e0d4 [2018-10-27 03:17:43,503 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 03:17:43,504 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label59_true-unreach-call.c [2018-10-27 03:17:43,529 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8b73eec9e/381d86374381414999b0a6b57957ca86/FLAG5f220e0d4 [2018-10-27 03:17:43,546 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8b73eec9e/381d86374381414999b0a6b57957ca86 [2018-10-27 03:17:43,558 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 03:17:43,559 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 03:17:43,561 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 03:17:43,561 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 03:17:43,565 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 03:17:43,566 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:17:43" (1/1) ... [2018-10-27 03:17:43,569 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a57073a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:17:43, skipping insertion in model container [2018-10-27 03:17:43,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:17:43" (1/1) ... [2018-10-27 03:17:43,581 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 03:17:43,665 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 03:17:44,538 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 03:17:44,542 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 03:17:44,834 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 03:17:44,854 INFO L193 MainTranslator]: Completed translation [2018-10-27 03:17:44,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:17:44 WrapperNode [2018-10-27 03:17:44,855 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 03:17:44,856 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 03:17:44,856 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 03:17:44,856 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 03:17:44,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:17:44" (1/1) ... [2018-10-27 03:17:44,905 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:17:44" (1/1) ... [2018-10-27 03:17:45,264 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 03:17:45,265 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 03:17:45,265 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 03:17:45,265 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 03:17:45,276 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:17:44" (1/1) ... [2018-10-27 03:17:45,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:17:44" (1/1) ... [2018-10-27 03:17:45,296 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:17:44" (1/1) ... [2018-10-27 03:17:45,296 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:17:44" (1/1) ... [2018-10-27 03:17:45,367 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:17:44" (1/1) ... [2018-10-27 03:17:45,383 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:17:44" (1/1) ... [2018-10-27 03:17:45,417 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:17:44" (1/1) ... [2018-10-27 03:17:45,454 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 03:17:45,455 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 03:17:45,455 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 03:17:45,455 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 03:17:45,456 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:17:44" (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 [2018-10-27 03:17:45,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 03:17:45,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 03:17:45,530 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 03:17:45,530 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 03:17:45,530 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 03:17:45,530 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 03:17:45,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 03:17:45,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 03:17:45,531 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 03:17:45,531 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 03:17:55,398 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 03:17:55,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:17:55 BoogieIcfgContainer [2018-10-27 03:17:55,399 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 03:17:55,400 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 03:17:55,400 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 03:17:55,405 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 03:17:55,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:17:43" (1/3) ... [2018-10-27 03:17:55,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@552d0561 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:17:55, skipping insertion in model container [2018-10-27 03:17:55,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:17:44" (2/3) ... [2018-10-27 03:17:55,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@552d0561 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:17:55, skipping insertion in model container [2018-10-27 03:17:55,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:17:55" (3/3) ... [2018-10-27 03:17:55,409 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label59_true-unreach-call.c [2018-10-27 03:17:55,420 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 03:17:55,434 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 03:17:55,454 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 03:17:55,501 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 03:17:55,502 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 03:17:55,502 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 03:17:55,502 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 03:17:55,502 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 03:17:55,503 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 03:17:55,503 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 03:17:55,503 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 03:17:55,544 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-10-27 03:17:55,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-10-27 03:17:55,554 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:17:55,555 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] [2018-10-27 03:17:55,557 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:17:55,563 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:17:55,564 INFO L82 PathProgramCache]: Analyzing trace with hash -1120743887, now seen corresponding path program 1 times [2018-10-27 03:17:55,566 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:17:55,615 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:17:55,615 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:17:55,616 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:17:55,616 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:17:55,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:17:56,167 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-10-27 03:17:56,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:17:56,209 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:17:56,209 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 03:17:56,210 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:17:56,216 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 03:17:56,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 03:17:56,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 03:17:56,235 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-10-27 03:18:06,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:18:06,245 INFO L93 Difference]: Finished difference Result 1558 states and 2849 transitions. [2018-10-27 03:18:06,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 03:18:06,247 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2018-10-27 03:18:06,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:18:06,284 INFO L225 Difference]: With dead ends: 1558 [2018-10-27 03:18:06,284 INFO L226 Difference]: Without dead ends: 1114 [2018-10-27 03:18:06,293 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 03:18:06,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2018-10-27 03:18:06,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 759. [2018-10-27 03:18:06,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 759 states. [2018-10-27 03:18:06,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 759 states to 759 states and 1355 transitions. [2018-10-27 03:18:06,448 INFO L78 Accepts]: Start accepts. Automaton has 759 states and 1355 transitions. Word has length 61 [2018-10-27 03:18:06,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:18:06,449 INFO L481 AbstractCegarLoop]: Abstraction has 759 states and 1355 transitions. [2018-10-27 03:18:06,449 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 03:18:06,449 INFO L276 IsEmpty]: Start isEmpty. Operand 759 states and 1355 transitions. [2018-10-27 03:18:06,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-10-27 03:18:06,462 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:18:06,463 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:18:06,463 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:18:06,463 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:18:06,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1471271461, now seen corresponding path program 1 times [2018-10-27 03:18:06,464 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:18:06,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:18:06,466 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:18:06,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:18:06,466 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:18:06,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:18:06,768 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:18:06,768 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:18:06,769 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 03:18:06,769 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:18:06,771 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 03:18:06,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 03:18:06,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 03:18:06,772 INFO L87 Difference]: Start difference. First operand 759 states and 1355 transitions. Second operand 5 states. [2018-10-27 03:18:19,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:18:19,530 INFO L93 Difference]: Finished difference Result 2506 states and 4577 transitions. [2018-10-27 03:18:19,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 03:18:19,531 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 131 [2018-10-27 03:18:19,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:18:19,546 INFO L225 Difference]: With dead ends: 2506 [2018-10-27 03:18:19,547 INFO L226 Difference]: Without dead ends: 1753 [2018-10-27 03:18:19,552 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-10-27 03:18:19,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1753 states. [2018-10-27 03:18:19,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1753 to 1733. [2018-10-27 03:18:19,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1733 states. [2018-10-27 03:18:19,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1733 states to 1733 states and 3007 transitions. [2018-10-27 03:18:19,643 INFO L78 Accepts]: Start accepts. Automaton has 1733 states and 3007 transitions. Word has length 131 [2018-10-27 03:18:19,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:18:19,644 INFO L481 AbstractCegarLoop]: Abstraction has 1733 states and 3007 transitions. [2018-10-27 03:18:19,644 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 03:18:19,644 INFO L276 IsEmpty]: Start isEmpty. Operand 1733 states and 3007 transitions. [2018-10-27 03:18:19,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-10-27 03:18:19,653 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:18:19,653 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:18:19,654 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:18:19,654 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:18:19,654 INFO L82 PathProgramCache]: Analyzing trace with hash -708902120, now seen corresponding path program 1 times [2018-10-27 03:18:19,654 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:18:19,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:18:19,655 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:18:19,656 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:18:19,656 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:18:19,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:18:19,935 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:18:19,935 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:18:19,936 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 03:18:19,936 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:18:19,936 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 03:18:19,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 03:18:19,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-27 03:18:19,937 INFO L87 Difference]: Start difference. First operand 1733 states and 3007 transitions. Second operand 6 states. [2018-10-27 03:18:32,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:18:32,674 INFO L93 Difference]: Finished difference Result 5411 states and 10018 transitions. [2018-10-27 03:18:32,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-27 03:18:32,675 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 132 [2018-10-27 03:18:32,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:18:32,709 INFO L225 Difference]: With dead ends: 5411 [2018-10-27 03:18:32,710 INFO L226 Difference]: Without dead ends: 3684 [2018-10-27 03:18:32,734 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 [2018-10-27 03:18:32,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3684 states. [2018-10-27 03:18:32,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3684 to 3593. [2018-10-27 03:18:32,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3593 states. [2018-10-27 03:18:32,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3593 states to 3593 states and 5521 transitions. [2018-10-27 03:18:32,879 INFO L78 Accepts]: Start accepts. Automaton has 3593 states and 5521 transitions. Word has length 132 [2018-10-27 03:18:32,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:18:32,880 INFO L481 AbstractCegarLoop]: Abstraction has 3593 states and 5521 transitions. [2018-10-27 03:18:32,880 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 03:18:32,880 INFO L276 IsEmpty]: Start isEmpty. Operand 3593 states and 5521 transitions. [2018-10-27 03:18:32,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-10-27 03:18:32,882 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:18:32,883 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:18:32,883 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:18:32,883 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:18:32,883 INFO L82 PathProgramCache]: Analyzing trace with hash -1451874528, now seen corresponding path program 1 times [2018-10-27 03:18:32,884 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:18:32,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:18:32,885 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:18:32,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:18:32,885 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:18:32,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:18:33,071 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:18:33,071 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:18:33,071 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 03:18:33,072 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:18:33,072 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 03:18:33,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 03:18:33,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 03:18:33,073 INFO L87 Difference]: Start difference. First operand 3593 states and 5521 transitions. Second operand 6 states. [2018-10-27 03:18:40,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:18:40,891 INFO L93 Difference]: Finished difference Result 10285 states and 17054 transitions. [2018-10-27 03:18:40,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 03:18:40,891 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 136 [2018-10-27 03:18:40,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:18:40,936 INFO L225 Difference]: With dead ends: 10285 [2018-10-27 03:18:40,937 INFO L226 Difference]: Without dead ends: 7007 [2018-10-27 03:18:40,974 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 03:18:40,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7007 states. [2018-10-27 03:18:41,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7007 to 6954. [2018-10-27 03:18:41,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6954 states. [2018-10-27 03:18:41,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6954 states to 6954 states and 10152 transitions. [2018-10-27 03:18:41,187 INFO L78 Accepts]: Start accepts. Automaton has 6954 states and 10152 transitions. Word has length 136 [2018-10-27 03:18:41,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:18:41,188 INFO L481 AbstractCegarLoop]: Abstraction has 6954 states and 10152 transitions. [2018-10-27 03:18:41,188 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 03:18:41,188 INFO L276 IsEmpty]: Start isEmpty. Operand 6954 states and 10152 transitions. [2018-10-27 03:18:41,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-10-27 03:18:41,193 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:18:41,193 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:18:41,193 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:18:41,194 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:18:41,194 INFO L82 PathProgramCache]: Analyzing trace with hash -1453868313, now seen corresponding path program 1 times [2018-10-27 03:18:41,194 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:18:41,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:18:41,198 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:18:41,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:18:41,199 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:18:41,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:18:41,855 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:18:41,856 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 03:18:41,856 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 03:18:41,857 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 158 with the following transitions: [2018-10-27 03:18:41,859 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [461], [463], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-27 03:18:41,934 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 03:18:41,934 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 03:18:43,882 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 03:18:49,942 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 03:18:49,943 INFO L272 AbstractInterpreter]: Visited 103 different actions 296 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-27 03:18:49,961 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:18:49,961 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 03:18:52,171 INFO L227 lantSequenceWeakener]: Weakened 13 states. On average, predicates are now at 83.22% of their original sizes. [2018-10-27 03:18:52,172 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 03:19:46,557 INFO L415 sIntCurrentIteration]: We unified 156 AI predicates to 156 [2018-10-27 03:19:46,557 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 03:19:46,559 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 03:19:46,559 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [7] total 21 [2018-10-27 03:19:46,559 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:19:46,560 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-27 03:19:46,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-27 03:19:46,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2018-10-27 03:19:46,561 INFO L87 Difference]: Start difference. First operand 6954 states and 10152 transitions. Second operand 16 states. Received shutdown request... [2018-10-27 03:21:50,686 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-10-27 03:21:50,686 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 03:21:50,692 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 03:21:50,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:21:50 BoogieIcfgContainer [2018-10-27 03:21:50,692 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 03:21:50,693 INFO L168 Benchmark]: Toolchain (without parser) took 247135.04 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.5 GB in the end (delta: -2.0 GB). Peak memory consumption was 663.3 MB. Max. memory is 7.1 GB. [2018-10-27 03:21:50,695 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 03:21:50,695 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1294.86 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: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. [2018-10-27 03:21:50,696 INFO L168 Benchmark]: Boogie Procedure Inliner took 408.88 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 773.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -887.7 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. [2018-10-27 03:21:50,697 INFO L168 Benchmark]: Boogie Preprocessor took 189.44 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: 28.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. [2018-10-27 03:21:50,698 INFO L168 Benchmark]: RCFGBuilder took 9944.44 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 294.3 MB). Peak memory consumption was 294.3 MB. Max. memory is 7.1 GB. [2018-10-27 03:21:50,699 INFO L168 Benchmark]: TraceAbstraction took 235292.32 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 3.5 GB in the end (delta: -1.6 GB). Peak memory consumption was 349.2 MB. Max. memory is 7.1 GB. [2018-10-27 03:21:50,705 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1294.86 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: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 408.88 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 773.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -887.7 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 189.44 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: 28.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9944.44 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 294.3 MB). Peak memory consumption was 294.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 235292.32 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 3.5 GB in the end (delta: -1.6 GB). Peak memory consumption was 349.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 169]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 169). Cancelled while BasicCegarLoop was constructing difference of abstraction (6954states) and FLOYD_HOARE automaton (currently 20 states, 16 states before enhancement),while ReachableStatesComputation was computing reachable states (2158 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 235.2s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 167.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 686 SDtfs, 8088 SDslu, 939 SDs, 0 SdLazy, 12425 SolverSat, 2466 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 79.9s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 201 GetRequests, 93 SyntacticMatches, 62 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 404 ImplicationChecksByTransitivity, 59.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6954occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 8.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9940774804905242 AbsIntWeakeningRatio, 0.1282051282051282 AbsIntAvgWeakeningVarsNumRemoved, 406.81410256410254 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 4 MinimizatonAttempts, 519 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 617 NumberOfCodeBlocks, 617 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 612 ConstructedInterpolants, 0 QuantifiedInterpolants, 336543 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 162/216 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown