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_label57_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-06 23:57:02,288 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-06 23:57:02,290 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-06 23:57:02,305 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-06 23:57:02,306 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-06 23:57:02,307 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-06 23:57:02,308 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-06 23:57:02,310 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-06 23:57:02,312 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-06 23:57:02,312 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-06 23:57:02,313 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-06 23:57:02,314 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-06 23:57:02,314 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-06 23:57:02,315 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-06 23:57:02,316 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-06 23:57:02,317 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-06 23:57:02,318 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-06 23:57:02,320 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-06 23:57:02,322 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-06 23:57:02,323 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-06 23:57:02,324 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-06 23:57:02,326 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-06 23:57:02,328 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-06 23:57:02,328 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-06 23:57:02,329 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-06 23:57:02,330 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-06 23:57:02,331 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-06 23:57:02,332 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-06 23:57:02,332 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-06 23:57:02,333 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-06 23:57:02,334 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-06 23:57:02,334 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-06 23:57:02,335 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-06 23:57:02,335 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-06 23:57:02,336 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-06 23:57:02,337 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-06 23:57:02,337 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 [2018-11-06 23:57:02,365 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-06 23:57:02,365 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-06 23:57:02,367 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-06 23:57:02,367 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-06 23:57:02,367 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-06 23:57:02,367 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-06 23:57:02,368 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-06 23:57:02,368 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-06 23:57:02,368 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-06 23:57:02,368 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-06 23:57:02,368 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-06 23:57:02,371 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-06 23:57:02,372 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-06 23:57:02,372 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-06 23:57:02,373 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-06 23:57:02,373 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-06 23:57:02,373 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-06 23:57:02,373 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-06 23:57:02,373 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-06 23:57:02,373 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-06 23:57:02,374 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-06 23:57:02,374 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-06 23:57:02,374 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-06 23:57:02,374 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-06 23:57:02,374 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 23:57:02,375 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-06 23:57:02,375 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-06 23:57:02,375 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-06 23:57:02,375 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-06 23:57:02,375 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-06 23:57:02,376 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-06 23:57:02,376 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-06 23:57:02,376 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-06 23:57:02,376 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-06 23:57:02,438 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-06 23:57:02,454 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-06 23:57:02,458 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-06 23:57:02,460 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-06 23:57:02,460 INFO L276 PluginConnector]: CDTParser initialized [2018-11-06 23:57:02,461 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label57_false-unreach-call.c [2018-11-06 23:57:02,528 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e3ad8c6a/a02943d55c7e4cf8a2a50536678b775f/FLAG0b9f59731 [2018-11-06 23:57:03,133 INFO L298 CDTParser]: Found 1 translation units. [2018-11-06 23:57:03,133 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label57_false-unreach-call.c [2018-11-06 23:57:03,149 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e3ad8c6a/a02943d55c7e4cf8a2a50536678b775f/FLAG0b9f59731 [2018-11-06 23:57:03,169 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e3ad8c6a/a02943d55c7e4cf8a2a50536678b775f [2018-11-06 23:57:03,181 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-06 23:57:03,183 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-06 23:57:03,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-06 23:57:03,184 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-06 23:57:03,190 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-06 23:57:03,191 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:57:03" (1/1) ... [2018-11-06 23:57:03,195 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e88097 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:57:03, skipping insertion in model container [2018-11-06 23:57:03,195 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:57:03" (1/1) ... [2018-11-06 23:57:03,206 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-06 23:57:03,286 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-06 23:57:03,778 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 23:57:03,782 INFO L189 MainTranslator]: Completed pre-run [2018-11-06 23:57:03,901 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 23:57:03,922 INFO L193 MainTranslator]: Completed translation [2018-11-06 23:57:03,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:57:03 WrapperNode [2018-11-06 23:57:03,923 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-06 23:57:03,924 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-06 23:57:03,924 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-06 23:57:03,924 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-06 23:57:03,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:57:03" (1/1) ... [2018-11-06 23:57:04,049 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:57:03" (1/1) ... [2018-11-06 23:57:04,061 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-06 23:57:04,062 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-06 23:57:04,062 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-06 23:57:04,062 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-06 23:57:04,073 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:57:03" (1/1) ... [2018-11-06 23:57:04,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:57:03" (1/1) ... [2018-11-06 23:57:04,088 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:57:03" (1/1) ... [2018-11-06 23:57:04,088 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:57:03" (1/1) ... [2018-11-06 23:57:04,139 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:57:03" (1/1) ... [2018-11-06 23:57:04,154 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:57:03" (1/1) ... [2018-11-06 23:57:04,161 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:57:03" (1/1) ... [2018-11-06 23:57:04,171 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-06 23:57:04,171 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-06 23:57:04,171 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-06 23:57:04,172 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-06 23:57:04,172 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:57:03" (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 [2018-11-06 23:57:04,253 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-06 23:57:04,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-06 23:57:04,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-06 23:57:04,253 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-06 23:57:04,254 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-06 23:57:04,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-06 23:57:04,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-06 23:57:04,254 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-06 23:57:04,254 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-06 23:57:07,503 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-06 23:57:07,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:57:07 BoogieIcfgContainer [2018-11-06 23:57:07,504 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-06 23:57:07,505 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-06 23:57:07,506 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-06 23:57:07,509 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-06 23:57:07,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:57:03" (1/3) ... [2018-11-06 23:57:07,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cba613b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:57:07, skipping insertion in model container [2018-11-06 23:57:07,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:57:03" (2/3) ... [2018-11-06 23:57:07,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cba613b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:57:07, skipping insertion in model container [2018-11-06 23:57:07,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:57:07" (3/3) ... [2018-11-06 23:57:07,513 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label57_false-unreach-call.c [2018-11-06 23:57:07,523 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-06 23:57:07,533 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-06 23:57:07,549 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-06 23:57:07,589 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-06 23:57:07,589 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-06 23:57:07,589 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-06 23:57:07,589 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-06 23:57:07,590 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-06 23:57:07,590 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-06 23:57:07,590 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-06 23:57:07,590 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-06 23:57:07,619 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-11-06 23:57:07,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-06 23:57:07,626 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 23:57:07,627 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 23:57:07,629 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 23:57:07,636 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 23:57:07,636 INFO L82 PathProgramCache]: Analyzing trace with hash 1838359401, now seen corresponding path program 1 times [2018-11-06 23:57:07,639 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-06 23:57:07,687 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:57:07,688 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 23:57:07,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:57:07,688 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-06 23:57:07,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 23:57:08,006 WARN L179 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-06 23:57:08,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 23:57:08,118 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 23:57:08,118 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 23:57:08,119 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-06 23:57:08,127 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 23:57:08,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 23:57:08,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 23:57:08,150 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 3 states. [2018-11-06 23:57:09,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 23:57:09,944 INFO L93 Difference]: Finished difference Result 574 states and 992 transitions. [2018-11-06 23:57:09,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 23:57:09,947 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-11-06 23:57:09,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 23:57:09,964 INFO L225 Difference]: With dead ends: 574 [2018-11-06 23:57:09,965 INFO L226 Difference]: Without dead ends: 356 [2018-11-06 23:57:09,972 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 23:57:09,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-11-06 23:57:10,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2018-11-06 23:57:10,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-11-06 23:57:10,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 609 transitions. [2018-11-06 23:57:10,082 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 609 transitions. Word has length 13 [2018-11-06 23:57:10,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 23:57:10,082 INFO L480 AbstractCegarLoop]: Abstraction has 356 states and 609 transitions. [2018-11-06 23:57:10,083 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 23:57:10,083 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 609 transitions. [2018-11-06 23:57:10,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-11-06 23:57:10,089 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 23:57:10,089 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 23:57:10,090 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 23:57:10,090 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 23:57:10,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1031774248, now seen corresponding path program 1 times [2018-11-06 23:57:10,090 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-06 23:57:10,092 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:57:10,092 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 23:57:10,092 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:57:10,092 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-06 23:57:10,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 23:57:10,456 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 23:57:10,456 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 23:57:10,457 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-06 23:57:10,457 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-06 23:57:10,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-06 23:57:10,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-06 23:57:10,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-06 23:57:10,460 INFO L87 Difference]: Start difference. First operand 356 states and 609 transitions. Second operand 6 states. [2018-11-06 23:57:12,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 23:57:12,548 INFO L93 Difference]: Finished difference Result 867 states and 1507 transitions. [2018-11-06 23:57:12,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-06 23:57:12,548 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 87 [2018-11-06 23:57:12,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 23:57:12,554 INFO L225 Difference]: With dead ends: 867 [2018-11-06 23:57:12,554 INFO L226 Difference]: Without dead ends: 517 [2018-11-06 23:57:12,557 INFO L604 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 [2018-11-06 23:57:12,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2018-11-06 23:57:12,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 508. [2018-11-06 23:57:12,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 508 states. [2018-11-06 23:57:12,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 831 transitions. [2018-11-06 23:57:12,597 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 831 transitions. Word has length 87 [2018-11-06 23:57:12,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 23:57:12,598 INFO L480 AbstractCegarLoop]: Abstraction has 508 states and 831 transitions. [2018-11-06 23:57:12,598 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-06 23:57:12,599 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 831 transitions. [2018-11-06 23:57:12,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-11-06 23:57:12,603 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 23:57:12,603 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 23:57:12,603 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 23:57:12,604 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 23:57:12,604 INFO L82 PathProgramCache]: Analyzing trace with hash -281780396, now seen corresponding path program 1 times [2018-11-06 23:57:12,604 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-06 23:57:12,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:57:12,606 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 23:57:12,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:57:12,606 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-06 23:57:12,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 23:57:12,756 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 23:57:12,757 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 23:57:12,757 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 23:57:12,757 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-06 23:57:12,758 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 23:57:12,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 23:57:12,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 23:57:12,762 INFO L87 Difference]: Start difference. First operand 508 states and 831 transitions. Second operand 3 states. [2018-11-06 23:57:13,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 23:57:13,923 INFO L93 Difference]: Finished difference Result 1448 states and 2461 transitions. [2018-11-06 23:57:13,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 23:57:13,924 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 93 [2018-11-06 23:57:13,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 23:57:13,934 INFO L225 Difference]: With dead ends: 1448 [2018-11-06 23:57:13,934 INFO L226 Difference]: Without dead ends: 946 [2018-11-06 23:57:13,941 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 23:57:13,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2018-11-06 23:57:13,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 946. [2018-11-06 23:57:13,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 946 states. [2018-11-06 23:57:14,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1389 transitions. [2018-11-06 23:57:14,005 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1389 transitions. Word has length 93 [2018-11-06 23:57:14,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 23:57:14,006 INFO L480 AbstractCegarLoop]: Abstraction has 946 states and 1389 transitions. [2018-11-06 23:57:14,006 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 23:57:14,006 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1389 transitions. [2018-11-06 23:57:14,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-11-06 23:57:14,022 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 23:57:14,022 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 23:57:14,023 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 23:57:14,023 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 23:57:14,023 INFO L82 PathProgramCache]: Analyzing trace with hash -1162021757, now seen corresponding path program 1 times [2018-11-06 23:57:14,023 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-06 23:57:14,026 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:57:14,027 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 23:57:14,027 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:57:14,027 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-06 23:57:14,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 23:57:14,261 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 23:57:14,262 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 23:57:14,262 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-06 23:57:14,263 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-06 23:57:14,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-06 23:57:14,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-06 23:57:14,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-06 23:57:14,264 INFO L87 Difference]: Start difference. First operand 946 states and 1389 transitions. Second operand 6 states. [2018-11-06 23:57:18,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 23:57:18,690 INFO L93 Difference]: Finished difference Result 2476 states and 3870 transitions. [2018-11-06 23:57:18,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-06 23:57:18,691 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 104 [2018-11-06 23:57:18,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 23:57:18,708 INFO L225 Difference]: With dead ends: 2476 [2018-11-06 23:57:18,708 INFO L226 Difference]: Without dead ends: 1536 [2018-11-06 23:57:18,719 INFO L604 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 [2018-11-06 23:57:18,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1536 states. [2018-11-06 23:57:18,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1536 to 1517. [2018-11-06 23:57:18,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1517 states. [2018-11-06 23:57:18,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1517 states to 1517 states and 2192 transitions. [2018-11-06 23:57:18,794 INFO L78 Accepts]: Start accepts. Automaton has 1517 states and 2192 transitions. Word has length 104 [2018-11-06 23:57:18,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 23:57:18,795 INFO L480 AbstractCegarLoop]: Abstraction has 1517 states and 2192 transitions. [2018-11-06 23:57:18,795 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-06 23:57:18,796 INFO L276 IsEmpty]: Start isEmpty. Operand 1517 states and 2192 transitions. [2018-11-06 23:57:18,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-11-06 23:57:18,801 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 23:57:18,801 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 23:57:18,802 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 23:57:18,802 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 23:57:18,802 INFO L82 PathProgramCache]: Analyzing trace with hash 1276807536, now seen corresponding path program 1 times [2018-11-06 23:57:18,802 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-06 23:57:18,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:57:18,806 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 23:57:18,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:57:18,806 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-06 23:57:18,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 23:57:19,149 WARN L179 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-06 23:57:19,580 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 23:57:19,580 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 23:57:19,580 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-06 23:57:19,581 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-06 23:57:19,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-06 23:57:19,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-06 23:57:19,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-06 23:57:19,583 INFO L87 Difference]: Start difference. First operand 1517 states and 2192 transitions. Second operand 6 states. [2018-11-06 23:57:21,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 23:57:21,467 INFO L93 Difference]: Finished difference Result 3307 states and 4766 transitions. [2018-11-06 23:57:21,468 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-06 23:57:21,469 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 155 [2018-11-06 23:57:21,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 23:57:21,482 INFO L225 Difference]: With dead ends: 3307 [2018-11-06 23:57:21,482 INFO L226 Difference]: Without dead ends: 1796 [2018-11-06 23:57:21,492 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-06 23:57:21,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1796 states. [2018-11-06 23:57:21,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1796 to 1751. [2018-11-06 23:57:21,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1751 states. [2018-11-06 23:57:21,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1751 states to 1751 states and 2338 transitions. [2018-11-06 23:57:21,558 INFO L78 Accepts]: Start accepts. Automaton has 1751 states and 2338 transitions. Word has length 155 [2018-11-06 23:57:21,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 23:57:21,559 INFO L480 AbstractCegarLoop]: Abstraction has 1751 states and 2338 transitions. [2018-11-06 23:57:21,559 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-06 23:57:21,559 INFO L276 IsEmpty]: Start isEmpty. Operand 1751 states and 2338 transitions. [2018-11-06 23:57:21,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-11-06 23:57:21,564 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 23:57:21,564 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-06 23:57:21,565 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 23:57:21,565 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 23:57:21,565 INFO L82 PathProgramCache]: Analyzing trace with hash 555074088, now seen corresponding path program 1 times [2018-11-06 23:57:21,565 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-06 23:57:21,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:57:21,567 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 23:57:21,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:57:21,567 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-06 23:57:21,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 23:57:21,757 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-11-06 23:57:21,758 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 23:57:21,758 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 23:57:21,758 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-06 23:57:21,759 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 23:57:21,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 23:57:21,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 23:57:21,760 INFO L87 Difference]: Start difference. First operand 1751 states and 2338 transitions. Second operand 3 states. [2018-11-06 23:57:22,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 23:57:22,538 INFO L93 Difference]: Finished difference Result 4731 states and 6537 transitions. [2018-11-06 23:57:22,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 23:57:22,540 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2018-11-06 23:57:22,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 23:57:22,560 INFO L225 Difference]: With dead ends: 4731 [2018-11-06 23:57:22,560 INFO L226 Difference]: Without dead ends: 2986 [2018-11-06 23:57:22,574 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 23:57:22,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2986 states. [2018-11-06 23:57:22,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2986 to 2962. [2018-11-06 23:57:22,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2962 states. [2018-11-06 23:57:22,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2962 states to 2962 states and 3774 transitions. [2018-11-06 23:57:22,672 INFO L78 Accepts]: Start accepts. Automaton has 2962 states and 3774 transitions. Word has length 192 [2018-11-06 23:57:22,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 23:57:22,673 INFO L480 AbstractCegarLoop]: Abstraction has 2962 states and 3774 transitions. [2018-11-06 23:57:22,673 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 23:57:22,673 INFO L276 IsEmpty]: Start isEmpty. Operand 2962 states and 3774 transitions. [2018-11-06 23:57:22,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2018-11-06 23:57:22,683 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 23:57:22,684 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 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] [2018-11-06 23:57:22,684 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 23:57:22,684 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 23:57:22,684 INFO L82 PathProgramCache]: Analyzing trace with hash 36527643, now seen corresponding path program 1 times [2018-11-06 23:57:22,685 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-06 23:57:22,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:57:22,690 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 23:57:22,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:57:22,690 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-06 23:57:22,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 23:57:23,029 WARN L179 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-06 23:57:23,354 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-11-06 23:57:23,355 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 23:57:23,355 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-06 23:57:23,357 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 236 with the following transitions: [2018-11-06 23:57:23,360 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [7], [10], [18], [26], [34], [42], [50], [58], [66], [74], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [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], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [782], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-06 23:57:23,448 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-06 23:57:23,448 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-06 23:57:25,974 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-06 23:57:54,293 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-06 23:57:54,294 INFO L272 AbstractInterpreter]: Visited 150 different actions 870 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. [2018-11-06 23:57:54,307 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 23:57:54,307 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-06 23:57:58,589 INFO L227 lantSequenceWeakener]: Weakened 58 states. On average, predicates are now at 73.25% of their original sizes. [2018-11-06 23:57:58,590 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-06 23:58:25,451 INFO L415 sIntCurrentIteration]: We unified 234 AI predicates to 234 [2018-11-06 23:58:25,451 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-06 23:58:25,452 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 23:58:25,453 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [25] imperfect sequences [8] total 31 [2018-11-06 23:58:25,453 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-06 23:58:25,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-11-06 23:58:25,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-11-06 23:58:25,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=482, Unknown=0, NotChecked=0, Total=600 [2018-11-06 23:58:25,454 INFO L87 Difference]: Start difference. First operand 2962 states and 3774 transitions. Second operand 25 states. [2018-11-07 00:00:48,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:00:48,130 INFO L93 Difference]: Finished difference Result 6489 states and 8269 transitions. [2018-11-07 00:00:48,130 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-11-07 00:00:48,130 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 235 [2018-11-07 00:00:48,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:00:48,149 INFO L225 Difference]: With dead ends: 6489 [2018-11-07 00:00:48,149 INFO L226 Difference]: Without dead ends: 3533 [2018-11-07 00:00:48,161 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 248 GetRequests, 187 SyntacticMatches, 24 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 471 ImplicationChecksByTransitivity, 30.6s TimeCoverageRelationStatistics Valid=334, Invalid=1148, Unknown=0, NotChecked=0, Total=1482 [2018-11-07 00:00:48,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3533 states. [2018-11-07 00:00:48,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3533 to 3254. [2018-11-07 00:00:48,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3254 states. [2018-11-07 00:00:48,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3254 states to 3254 states and 4071 transitions. [2018-11-07 00:00:48,318 INFO L78 Accepts]: Start accepts. Automaton has 3254 states and 4071 transitions. Word has length 235 [2018-11-07 00:00:48,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:00:48,319 INFO L480 AbstractCegarLoop]: Abstraction has 3254 states and 4071 transitions. [2018-11-07 00:00:48,319 INFO L481 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-11-07 00:00:48,319 INFO L276 IsEmpty]: Start isEmpty. Operand 3254 states and 4071 transitions. [2018-11-07 00:00:48,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2018-11-07 00:00:48,329 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:00:48,330 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 00:00:48,330 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:00:48,330 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:00:48,330 INFO L82 PathProgramCache]: Analyzing trace with hash 1124090659, now seen corresponding path program 1 times [2018-11-07 00:00:48,331 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:00:48,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:00:48,332 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:00:48,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:00:48,332 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:00:48,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:00:48,670 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 5 proven. 14 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-11-07 00:00:48,670 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:00:48,670 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 00:00:48,671 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 272 with the following transitions: [2018-11-07 00:00:48,671 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [7], [10], [18], [26], [34], [42], [50], [58], [66], [74], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [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], [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], [678], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [782], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-07 00:00:48,681 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 00:00:48,681 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-11-07 00:00:49,748 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-11-07 00:00:49,748 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-11-07 00:00:49,750 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-07 00:00:49,750 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:00:49,750 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 00:00:49,760 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:00:49,760 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 00:00:49,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:00:49,872 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 00:00:49,908 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-11-07 00:00:50,109 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 00:00:50,110 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 00:00:50,116 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 00:00:50,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:00:50 BoogieIcfgContainer [2018-11-07 00:00:50,116 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 00:00:50,117 INFO L168 Benchmark]: Toolchain (without parser) took 226935.68 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 1.9 GB in the end (delta: -465.3 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-11-07 00:00:50,118 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 00:00:50,119 INFO L168 Benchmark]: CACSL2BoogieTranslator took 739.25 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-11-07 00:00:50,120 INFO L168 Benchmark]: Boogie Procedure Inliner took 137.28 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 728.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -807.1 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. [2018-11-07 00:00:50,121 INFO L168 Benchmark]: Boogie Preprocessor took 109.24 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. [2018-11-07 00:00:50,121 INFO L168 Benchmark]: RCFGBuilder took 3333.13 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 105.8 MB). Peak memory consumption was 105.8 MB. Max. memory is 7.1 GB. [2018-11-07 00:00:50,122 INFO L168 Benchmark]: TraceAbstraction took 222610.79 ms. Allocated memory was 2.2 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 1.9 GB in the end (delta: 200.9 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-11-07 00:00:50,128 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 739.25 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 137.28 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 728.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -807.1 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 109.24 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3333.13 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 105.8 MB). Peak memory consumption was 105.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 222610.79 ms. Allocated memory was 2.2 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 1.9 GB in the end (delta: 200.9 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 22]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 22). Cancelled while BasicCegarLoop was analyzing trace of length 272 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 8 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 222.5s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 155.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1210 SDtfs, 4842 SDslu, 719 SDs, 0 SdLazy, 6054 SolverSat, 1095 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 75.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 291 GetRequests, 201 SyntacticMatches, 29 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 483 ImplicationChecksByTransitivity, 31.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3254occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 32.0s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 0.9949600520252697 AbsIntWeakeningRatio, 0.1111111111111111 AbsIntAvgWeakeningVarsNumRemoved, 201.3803418803419 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 7 MinimizatonAttempts, 376 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 879 NumberOfCodeBlocks, 879 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 872 ConstructedInterpolants, 0 QuantifiedInterpolants, 577206 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 210/216 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown