java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label16_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 02:43:33,389 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 02:43:33,391 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 02:43:33,403 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 02:43:33,403 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 02:43:33,404 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 02:43:33,405 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 02:43:33,407 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 02:43:33,409 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 02:43:33,410 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 02:43:33,410 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 02:43:33,411 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 02:43:33,412 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 02:43:33,413 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 02:43:33,414 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 02:43:33,414 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 02:43:33,415 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 02:43:33,417 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 02:43:33,419 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 02:43:33,421 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 02:43:33,422 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 02:43:33,423 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 02:43:33,427 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 02:43:33,428 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 02:43:33,428 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 02:43:33,431 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 02:43:33,434 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 02:43:33,435 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 02:43:33,435 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 02:43:33,439 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 02:43:33,439 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 02:43:33,440 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 02:43:33,440 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 02:43:33,440 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 02:43:33,442 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 02:43:33,443 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 02:43:33,443 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-07 02:43:33,463 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 02:43:33,463 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 02:43:33,464 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 02:43:33,464 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 02:43:33,465 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 02:43:33,465 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 02:43:33,465 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 02:43:33,465 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 02:43:33,465 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 02:43:33,466 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 02:43:33,466 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 02:43:33,466 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 02:43:33,467 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 02:43:33,467 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 02:43:33,467 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 02:43:33,467 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 02:43:33,468 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 02:43:33,468 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 02:43:33,468 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 02:43:33,468 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 02:43:33,468 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 02:43:33,469 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 02:43:33,469 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 02:43:33,469 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 02:43:33,469 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 02:43:33,469 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 02:43:33,470 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 02:43:33,470 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 02:43:33,470 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 02:43:33,470 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 02:43:33,470 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 02:43:33,471 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 02:43:33,471 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 02:43:33,471 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 02:43:33,515 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 02:43:33,531 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 02:43:33,535 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 02:43:33,536 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 02:43:33,537 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 02:43:33,537 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label16_true-unreach-call.c [2018-11-07 02:43:33,595 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb344b56e/5dd84e35d81441e5a26399dda2935793/FLAG6ba2ea6a0 [2018-11-07 02:43:34,166 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 02:43:34,167 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label16_true-unreach-call.c [2018-11-07 02:43:34,181 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb344b56e/5dd84e35d81441e5a26399dda2935793/FLAG6ba2ea6a0 [2018-11-07 02:43:34,199 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb344b56e/5dd84e35d81441e5a26399dda2935793 [2018-11-07 02:43:34,212 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 02:43:34,213 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 02:43:34,214 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 02:43:34,214 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 02:43:34,218 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 02:43:34,219 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:43:34" (1/1) ... [2018-11-07 02:43:34,222 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41c4d1d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:43:34, skipping insertion in model container [2018-11-07 02:43:34,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:43:34" (1/1) ... [2018-11-07 02:43:34,233 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 02:43:34,301 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 02:43:34,798 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 02:43:34,803 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 02:43:34,928 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 02:43:34,951 INFO L193 MainTranslator]: Completed translation [2018-11-07 02:43:34,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:43:34 WrapperNode [2018-11-07 02:43:34,952 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 02:43:34,953 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 02:43:34,953 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 02:43:34,953 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 02:43:34,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:43:34" (1/1) ... [2018-11-07 02:43:35,092 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:43:34" (1/1) ... [2018-11-07 02:43:35,109 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 02:43:35,114 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 02:43:35,114 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 02:43:35,114 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 02:43:35,128 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:43:34" (1/1) ... [2018-11-07 02:43:35,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:43:34" (1/1) ... [2018-11-07 02:43:35,139 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:43:34" (1/1) ... [2018-11-07 02:43:35,142 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:43:34" (1/1) ... [2018-11-07 02:43:35,183 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:43:34" (1/1) ... [2018-11-07 02:43:35,206 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:43:34" (1/1) ... [2018-11-07 02:43:35,218 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:43:34" (1/1) ... [2018-11-07 02:43:35,232 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 02:43:35,232 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 02:43:35,233 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 02:43:35,233 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 02:43:35,234 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:43:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 02:43:35,297 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 02:43:35,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 02:43:35,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 02:43:35,298 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 02:43:35,298 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 02:43:35,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 02:43:35,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 02:43:35,298 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 02:43:35,298 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 02:43:38,364 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 02:43:38,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:43:38 BoogieIcfgContainer [2018-11-07 02:43:38,365 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 02:43:38,366 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 02:43:38,366 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 02:43:38,369 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 02:43:38,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:43:34" (1/3) ... [2018-11-07 02:43:38,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53fb8ecb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:43:38, skipping insertion in model container [2018-11-07 02:43:38,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:43:34" (2/3) ... [2018-11-07 02:43:38,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53fb8ecb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:43:38, skipping insertion in model container [2018-11-07 02:43:38,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:43:38" (3/3) ... [2018-11-07 02:43:38,373 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label16_true-unreach-call.c [2018-11-07 02:43:38,382 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 02:43:38,389 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 02:43:38,404 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 02:43:38,442 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 02:43:38,442 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 02:43:38,442 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 02:43:38,442 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 02:43:38,443 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 02:43:38,444 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 02:43:38,444 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 02:43:38,444 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 02:43:38,472 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-11-07 02:43:38,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-07 02:43:38,479 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 02:43:38,480 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] [2018-11-07 02:43:38,483 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 02:43:38,488 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:43:38,489 INFO L82 PathProgramCache]: Analyzing trace with hash -1339291892, now seen corresponding path program 1 times [2018-11-07 02:43:38,491 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 02:43:38,542 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:43:38,542 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 02:43:38,543 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:43:38,543 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 02:43:38,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 02:43:38,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 02:43:38,948 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 02:43:38,949 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 02:43:38,949 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 02:43:38,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 02:43:38,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 02:43:38,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 02:43:38,975 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 3 states. [2018-11-07 02:43:40,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 02:43:40,536 INFO L93 Difference]: Finished difference Result 574 states and 992 transitions. [2018-11-07 02:43:40,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 02:43:40,543 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 40 [2018-11-07 02:43:40,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 02:43:40,562 INFO L225 Difference]: With dead ends: 574 [2018-11-07 02:43:40,562 INFO L226 Difference]: Without dead ends: 356 [2018-11-07 02:43:40,569 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 02:43:40,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-11-07 02:43:40,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2018-11-07 02:43:40,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-11-07 02:43:40,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 609 transitions. [2018-11-07 02:43:40,656 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 609 transitions. Word has length 40 [2018-11-07 02:43:40,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 02:43:40,656 INFO L480 AbstractCegarLoop]: Abstraction has 356 states and 609 transitions. [2018-11-07 02:43:40,656 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 02:43:40,657 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 609 transitions. [2018-11-07 02:43:40,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2018-11-07 02:43:40,665 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 02:43:40,665 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 02:43:40,666 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 02:43:40,666 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:43:40,667 INFO L82 PathProgramCache]: Analyzing trace with hash 281575248, now seen corresponding path program 1 times [2018-11-07 02:43:40,667 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 02:43:40,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:43:40,671 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 02:43:40,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:43:40,672 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 02:43:40,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 02:43:41,138 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 02:43:41,139 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 02:43:41,139 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 02:43:41,139 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 02:43:41,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 02:43:41,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 02:43:41,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 02:43:41,144 INFO L87 Difference]: Start difference. First operand 356 states and 609 transitions. Second operand 4 states. [2018-11-07 02:43:43,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 02:43:43,458 INFO L93 Difference]: Finished difference Result 1282 states and 2328 transitions. [2018-11-07 02:43:43,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 02:43:43,460 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2018-11-07 02:43:43,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 02:43:43,474 INFO L225 Difference]: With dead ends: 1282 [2018-11-07 02:43:43,475 INFO L226 Difference]: Without dead ends: 932 [2018-11-07 02:43:43,480 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 02:43:43,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 932 states. [2018-11-07 02:43:43,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 932 to 932. [2018-11-07 02:43:43,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 932 states. [2018-11-07 02:43:43,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 932 states to 932 states and 1471 transitions. [2018-11-07 02:43:43,574 INFO L78 Accepts]: Start accepts. Automaton has 932 states and 1471 transitions. Word has length 160 [2018-11-07 02:43:43,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 02:43:43,577 INFO L480 AbstractCegarLoop]: Abstraction has 932 states and 1471 transitions. [2018-11-07 02:43:43,577 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 02:43:43,577 INFO L276 IsEmpty]: Start isEmpty. Operand 932 states and 1471 transitions. [2018-11-07 02:43:43,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2018-11-07 02:43:43,592 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 02:43:43,592 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 02:43:43,592 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 02:43:43,594 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:43:43,594 INFO L82 PathProgramCache]: Analyzing trace with hash 1010805092, now seen corresponding path program 1 times [2018-11-07 02:43:43,594 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 02:43:43,595 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:43:43,595 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 02:43:43,595 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:43:43,596 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 02:43:43,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 02:43:44,028 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 02:43:44,028 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 02:43:44,029 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 02:43:44,029 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 02:43:44,030 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 02:43:44,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 02:43:44,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 02:43:44,030 INFO L87 Difference]: Start difference. First operand 932 states and 1471 transitions. Second operand 5 states. [2018-11-07 02:43:50,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 02:43:50,326 INFO L93 Difference]: Finished difference Result 3235 states and 5245 transitions. [2018-11-07 02:43:50,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 02:43:50,332 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 166 [2018-11-07 02:43:50,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 02:43:50,354 INFO L225 Difference]: With dead ends: 3235 [2018-11-07 02:43:50,355 INFO L226 Difference]: Without dead ends: 2309 [2018-11-07 02:43:50,368 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 02:43:50,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2309 states. [2018-11-07 02:43:50,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2309 to 2259. [2018-11-07 02:43:50,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2259 states. [2018-11-07 02:43:50,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2259 states to 2259 states and 3347 transitions. [2018-11-07 02:43:50,456 INFO L78 Accepts]: Start accepts. Automaton has 2259 states and 3347 transitions. Word has length 166 [2018-11-07 02:43:50,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 02:43:50,457 INFO L480 AbstractCegarLoop]: Abstraction has 2259 states and 3347 transitions. [2018-11-07 02:43:50,457 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 02:43:50,457 INFO L276 IsEmpty]: Start isEmpty. Operand 2259 states and 3347 transitions. [2018-11-07 02:43:50,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2018-11-07 02:43:50,474 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 02:43:50,475 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 02:43:50,475 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 02:43:50,475 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:43:50,476 INFO L82 PathProgramCache]: Analyzing trace with hash 102356851, now seen corresponding path program 1 times [2018-11-07 02:43:50,476 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 02:43:50,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:43:50,477 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 02:43:50,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:43:50,477 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 02:43:50,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 02:43:50,772 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 135 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 02:43:50,772 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 02:43:50,772 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 02:43:50,773 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 238 with the following transitions: [2018-11-07 02:43:50,776 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [221], [223], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [718], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-07 02:43:50,851 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 02:43:50,852 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 02:43:53,024 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 02:44:07,224 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 02:44:07,225 INFO L272 AbstractInterpreter]: Visited 134 different actions 518 times. Merged at 5 different actions 15 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 02:44:07,241 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:44:07,241 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 02:44:09,855 INFO L227 lantSequenceWeakener]: Weakened 70 states. On average, predicates are now at 75.07% of their original sizes. [2018-11-07 02:44:09,855 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 02:44:22,934 INFO L415 sIntCurrentIteration]: We unified 236 AI predicates to 236 [2018-11-07 02:44:22,934 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 02:44:22,935 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 02:44:22,935 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [6] total 23 [2018-11-07 02:44:22,935 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 02:44:22,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-11-07 02:44:22,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-11-07 02:44:22,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2018-11-07 02:44:22,937 INFO L87 Difference]: Start difference. First operand 2259 states and 3347 transitions. Second operand 19 states. [2018-11-07 02:46:45,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 02:46:45,402 INFO L93 Difference]: Finished difference Result 5198 states and 7854 transitions. [2018-11-07 02:46:45,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-11-07 02:46:45,403 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 237 [2018-11-07 02:46:45,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 02:46:45,422 INFO L225 Difference]: With dead ends: 5198 [2018-11-07 02:46:45,422 INFO L226 Difference]: Without dead ends: 2945 [2018-11-07 02:46:45,437 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 248 GetRequests, 202 SyntacticMatches, 17 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 15.6s TimeCoverageRelationStatistics Valid=175, Invalid=755, Unknown=0, NotChecked=0, Total=930 [2018-11-07 02:46:45,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2945 states. [2018-11-07 02:46:45,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2945 to 2730. [2018-11-07 02:46:45,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2730 states. [2018-11-07 02:46:45,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2730 states to 2730 states and 3866 transitions. [2018-11-07 02:46:45,586 INFO L78 Accepts]: Start accepts. Automaton has 2730 states and 3866 transitions. Word has length 237 [2018-11-07 02:46:45,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 02:46:45,586 INFO L480 AbstractCegarLoop]: Abstraction has 2730 states and 3866 transitions. [2018-11-07 02:46:45,586 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-11-07 02:46:45,587 INFO L276 IsEmpty]: Start isEmpty. Operand 2730 states and 3866 transitions. [2018-11-07 02:46:45,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2018-11-07 02:46:45,596 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 02:46:45,597 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 02:46:45,597 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 02:46:45,598 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:46:45,598 INFO L82 PathProgramCache]: Analyzing trace with hash -2003197064, now seen corresponding path program 1 times [2018-11-07 02:46:45,598 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 02:46:45,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:46:45,599 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 02:46:45,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:46:45,600 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 02:46:45,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 02:46:46,142 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 144 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 02:46:46,142 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 02:46:46,142 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 02:46:46,143 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 247 with the following transitions: [2018-11-07 02:46:46,143 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [221], [223], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [718], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-07 02:46:46,150 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 02:46:46,151 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 02:46:47,597 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 02:47:06,495 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 02:47:06,495 INFO L272 AbstractInterpreter]: Visited 134 different actions 774 times. Merged at 5 different actions 25 times. Widened at 1 different actions 1 times. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 02:47:06,502 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:47:06,502 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 02:47:09,506 INFO L227 lantSequenceWeakener]: Weakened 39 states. On average, predicates are now at 74.83% of their original sizes. [2018-11-07 02:47:09,506 INFO L413 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-11-07 02:47:31,038 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 02:47:31,042 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 02:47:31,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 02:47:31 BoogieIcfgContainer [2018-11-07 02:47:31,043 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 02:47:31,043 INFO L168 Benchmark]: Toolchain (without parser) took 236831.10 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.4 GB in the end (delta: -975.2 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-11-07 02:47:31,045 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. [2018-11-07 02:47:31,045 INFO L168 Benchmark]: CACSL2BoogieTranslator took 738.39 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-11-07 02:47:31,046 INFO L168 Benchmark]: Boogie Procedure Inliner took 160.62 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 759.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -843.5 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. [2018-11-07 02:47:31,047 INFO L168 Benchmark]: Boogie Preprocessor took 118.10 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 02:47:31,048 INFO L168 Benchmark]: RCFGBuilder took 3132.44 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 104.9 MB). Peak memory consumption was 104.9 MB. Max. memory is 7.1 GB. [2018-11-07 02:47:31,049 INFO L168 Benchmark]: TraceAbstraction took 232676.89 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 2.4 GB in the end (delta: -278.8 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-11-07 02:47:31,054 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 738.39 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 160.62 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 759.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -843.5 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 118.10 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 3132.44 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 104.9 MB). Peak memory consumption was 104.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 232676.89 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 2.4 GB in the end (delta: -278.8 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 103]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 103). Cancelled while BasicCegarLoop was analyzing trace of length 247 with TraceHistMax 3,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 10 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 232.6s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 152.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 510 SDtfs, 2655 SDslu, 496 SDs, 0 SdLazy, 4658 SolverSat, 1006 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 77.7s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 267 GetRequests, 210 SyntacticMatches, 19 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 16.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2730occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 36.8s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9950962668353971 AbsIntWeakeningRatio, 0.10810810810810811 AbsIntAvgWeakeningVarsNumRemoved, 408.3409563409563 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 265 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 603 NumberOfCodeBlocks, 603 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 599 ConstructedInterpolants, 0 QuantifiedInterpolants, 361399 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 201/203 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown