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/Problem18_label40_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 04:07:07,251 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 04:07:07,253 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 04:07:07,272 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 04:07:07,272 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 04:07:07,273 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 04:07:07,276 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 04:07:07,278 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 04:07:07,280 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 04:07:07,281 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 04:07:07,283 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 04:07:07,283 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 04:07:07,284 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 04:07:07,285 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 04:07:07,286 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 04:07:07,289 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 04:07:07,290 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 04:07:07,299 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 04:07:07,304 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 04:07:07,305 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 04:07:07,306 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 04:07:07,310 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 04:07:07,314 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-07 04:07:07,327 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 04:07:07,327 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 04:07:07,330 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 04:07:07,331 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 04:07:07,331 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 04:07:07,359 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 04:07:07,359 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 04:07:07,361 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 04:07:07,361 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 04:07:07,361 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 04:07:07,361 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 04:07:07,362 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 04:07:07,362 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 04:07:07,362 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 04:07:07,362 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 04:07:07,362 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 04:07:07,362 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 04:07:07,363 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 04:07:07,364 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 04:07:07,364 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 04:07:07,364 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 04:07:07,364 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 04:07:07,364 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 04:07:07,365 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 04:07:07,365 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 04:07:07,365 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 04:07:07,365 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 04:07:07,365 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 04:07:07,367 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 04:07:07,367 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 04:07:07,367 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 04:07:07,368 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 04:07:07,368 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 04:07:07,368 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 04:07:07,368 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 04:07:07,368 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 04:07:07,369 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 04:07:07,369 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 04:07:07,369 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 04:07:07,440 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 04:07:07,456 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 04:07:07,460 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 04:07:07,461 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 04:07:07,462 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 04:07:07,465 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label40_true-unreach-call.c [2018-11-07 04:07:07,531 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ca18c43b/192ade532e1d4769a3d87f48b67e8a84/FLAG93b1e1c97 [2018-11-07 04:07:08,259 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 04:07:08,260 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label40_true-unreach-call.c [2018-11-07 04:07:08,283 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ca18c43b/192ade532e1d4769a3d87f48b67e8a84/FLAG93b1e1c97 [2018-11-07 04:07:08,299 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ca18c43b/192ade532e1d4769a3d87f48b67e8a84 [2018-11-07 04:07:08,310 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 04:07:08,311 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 04:07:08,312 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 04:07:08,313 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 04:07:08,316 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 04:07:08,317 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:07:08" (1/1) ... [2018-11-07 04:07:08,320 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31dffc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:07:08, skipping insertion in model container [2018-11-07 04:07:08,321 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:07:08" (1/1) ... [2018-11-07 04:07:08,331 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 04:07:08,460 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 04:07:09,590 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 04:07:09,594 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 04:07:10,098 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 04:07:10,130 INFO L193 MainTranslator]: Completed translation [2018-11-07 04:07:10,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:07:10 WrapperNode [2018-11-07 04:07:10,131 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 04:07:10,132 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 04:07:10,132 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 04:07:10,132 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 04:07:10,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:07:10" (1/1) ... [2018-11-07 04:07:10,408 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:07:10" (1/1) ... [2018-11-07 04:07:10,421 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 04:07:10,421 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 04:07:10,422 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 04:07:10,422 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 04:07:10,435 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:07:10" (1/1) ... [2018-11-07 04:07:10,435 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:07:10" (1/1) ... [2018-11-07 04:07:10,448 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:07:10" (1/1) ... [2018-11-07 04:07:10,448 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:07:10" (1/1) ... [2018-11-07 04:07:10,545 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:07:10" (1/1) ... [2018-11-07 04:07:10,577 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:07:10" (1/1) ... [2018-11-07 04:07:10,609 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:07:10" (1/1) ... [2018-11-07 04:07:10,639 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 04:07:10,640 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 04:07:10,640 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 04:07:10,640 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 04:07:10,641 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:07:10" (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 04:07:10,710 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 04:07:10,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 04:07:10,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 04:07:10,711 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 04:07:10,711 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 04:07:10,712 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 04:07:10,712 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 04:07:10,712 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 04:07:10,712 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 04:07:10,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 04:07:10,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 04:07:10,713 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 04:07:10,713 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 04:07:17,893 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 04:07:17,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:07:17 BoogieIcfgContainer [2018-11-07 04:07:17,894 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 04:07:17,895 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 04:07:17,895 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 04:07:17,898 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 04:07:17,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:07:08" (1/3) ... [2018-11-07 04:07:17,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@492ec188 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:07:17, skipping insertion in model container [2018-11-07 04:07:17,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:07:10" (2/3) ... [2018-11-07 04:07:17,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@492ec188 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:07:17, skipping insertion in model container [2018-11-07 04:07:17,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:07:17" (3/3) ... [2018-11-07 04:07:17,902 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label40_true-unreach-call.c [2018-11-07 04:07:17,912 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 04:07:17,923 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 04:07:17,941 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 04:07:17,988 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 04:07:17,988 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 04:07:17,989 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 04:07:17,989 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 04:07:17,989 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 04:07:17,989 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 04:07:17,989 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 04:07:17,989 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 04:07:18,033 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-11-07 04:07:18,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-11-07 04:07:18,043 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:07:18,044 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 04:07:18,048 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:07:18,056 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:07:18,057 INFO L82 PathProgramCache]: Analyzing trace with hash 1179800183, now seen corresponding path program 1 times [2018-11-07 04:07:18,060 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:07:18,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:07:18,109 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:07:18,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:07:18,109 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:07:18,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:07:18,477 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 04:07:18,598 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 04:07:18,600 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 04:07:18,601 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 04:07:18,601 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:07:18,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 04:07:18,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 04:07:18,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 04:07:18,629 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 3 states. [2018-11-07 04:07:25,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 04:07:25,096 INFO L93 Difference]: Finished difference Result 2251 states and 4322 transitions. [2018-11-07 04:07:25,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 04:07:25,101 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2018-11-07 04:07:25,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 04:07:25,132 INFO L225 Difference]: With dead ends: 2251 [2018-11-07 04:07:25,134 INFO L226 Difference]: Without dead ends: 1474 [2018-11-07 04:07:25,145 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 [2018-11-07 04:07:25,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2018-11-07 04:07:25,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1474. [2018-11-07 04:07:25,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-11-07 04:07:25,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2721 transitions. [2018-11-07 04:07:25,303 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2721 transitions. Word has length 51 [2018-11-07 04:07:25,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 04:07:25,303 INFO L480 AbstractCegarLoop]: Abstraction has 1474 states and 2721 transitions. [2018-11-07 04:07:25,305 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 04:07:25,305 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2721 transitions. [2018-11-07 04:07:25,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-11-07 04:07:25,316 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:07:25,317 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:07:25,317 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:07:25,318 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:07:25,318 INFO L82 PathProgramCache]: Analyzing trace with hash 1038500593, now seen corresponding path program 1 times [2018-11-07 04:07:25,318 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:07:25,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:07:25,319 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:07:25,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:07:25,322 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:07:25,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:07:25,661 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 04:07:25,662 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 04:07:25,662 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 04:07:25,662 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:07:25,664 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 04:07:25,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 04:07:25,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 04:07:25,665 INFO L87 Difference]: Start difference. First operand 1474 states and 2721 transitions. Second operand 6 states. [2018-11-07 04:07:33,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 04:07:33,986 INFO L93 Difference]: Finished difference Result 4419 states and 8244 transitions. [2018-11-07 04:07:33,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 04:07:33,987 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 140 [2018-11-07 04:07:33,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 04:07:34,008 INFO L225 Difference]: With dead ends: 4419 [2018-11-07 04:07:34,008 INFO L226 Difference]: Without dead ends: 2951 [2018-11-07 04:07:34,014 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 [2018-11-07 04:07:34,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2018-11-07 04:07:34,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 2928. [2018-11-07 04:07:34,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2928 states. [2018-11-07 04:07:34,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2928 states to 2928 states and 5087 transitions. [2018-11-07 04:07:34,120 INFO L78 Accepts]: Start accepts. Automaton has 2928 states and 5087 transitions. Word has length 140 [2018-11-07 04:07:34,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 04:07:34,121 INFO L480 AbstractCegarLoop]: Abstraction has 2928 states and 5087 transitions. [2018-11-07 04:07:34,121 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 04:07:34,121 INFO L276 IsEmpty]: Start isEmpty. Operand 2928 states and 5087 transitions. [2018-11-07 04:07:34,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2018-11-07 04:07:34,128 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:07:34,129 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:07:34,129 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:07:34,129 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:07:34,130 INFO L82 PathProgramCache]: Analyzing trace with hash -429800468, now seen corresponding path program 1 times [2018-11-07 04:07:34,130 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:07:34,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:07:34,131 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:07:34,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:07:34,131 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:07:34,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:07:34,515 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 04:07:34,515 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 04:07:34,516 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 04:07:34,516 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:07:34,517 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 04:07:34,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 04:07:34,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 04:07:34,517 INFO L87 Difference]: Start difference. First operand 2928 states and 5087 transitions. Second operand 6 states. [2018-11-07 04:07:43,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 04:07:43,570 INFO L93 Difference]: Finished difference Result 10194 states and 17948 transitions. [2018-11-07 04:07:43,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 04:07:43,572 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 187 [2018-11-07 04:07:43,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 04:07:43,629 INFO L225 Difference]: With dead ends: 10194 [2018-11-07 04:07:43,630 INFO L226 Difference]: Without dead ends: 7272 [2018-11-07 04:07:43,647 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 04:07:43,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7272 states. [2018-11-07 04:07:43,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7272 to 7208. [2018-11-07 04:07:43,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7208 states. [2018-11-07 04:07:43,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7208 states to 7208 states and 11881 transitions. [2018-11-07 04:07:43,898 INFO L78 Accepts]: Start accepts. Automaton has 7208 states and 11881 transitions. Word has length 187 [2018-11-07 04:07:43,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 04:07:43,899 INFO L480 AbstractCegarLoop]: Abstraction has 7208 states and 11881 transitions. [2018-11-07 04:07:43,899 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 04:07:43,899 INFO L276 IsEmpty]: Start isEmpty. Operand 7208 states and 11881 transitions. [2018-11-07 04:07:43,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2018-11-07 04:07:43,905 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:07:43,905 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:07:43,906 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:07:43,907 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:07:43,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1302575248, now seen corresponding path program 1 times [2018-11-07 04:07:43,907 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:07:43,908 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:07:43,909 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:07:43,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:07:43,909 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:07:43,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:07:44,266 WARN L179 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 04:07:44,392 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 04:07:44,393 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 04:07:44,393 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 04:07:44,393 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:07:44,394 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 04:07:44,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 04:07:44,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 04:07:44,394 INFO L87 Difference]: Start difference. First operand 7208 states and 11881 transitions. Second operand 6 states. [2018-11-07 04:07:49,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 04:07:49,687 INFO L93 Difference]: Finished difference Result 17365 states and 29107 transitions. [2018-11-07 04:07:49,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 04:07:49,688 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 189 [2018-11-07 04:07:49,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 04:07:49,739 INFO L225 Difference]: With dead ends: 17365 [2018-11-07 04:07:49,739 INFO L226 Difference]: Without dead ends: 10163 [2018-11-07 04:07:49,766 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 04:07:49,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10163 states. [2018-11-07 04:07:50,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10163 to 10108. [2018-11-07 04:07:50,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10108 states. [2018-11-07 04:07:50,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10108 states to 10108 states and 14258 transitions. [2018-11-07 04:07:50,028 INFO L78 Accepts]: Start accepts. Automaton has 10108 states and 14258 transitions. Word has length 189 [2018-11-07 04:07:50,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 04:07:50,029 INFO L480 AbstractCegarLoop]: Abstraction has 10108 states and 14258 transitions. [2018-11-07 04:07:50,029 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 04:07:50,029 INFO L276 IsEmpty]: Start isEmpty. Operand 10108 states and 14258 transitions. [2018-11-07 04:07:50,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2018-11-07 04:07:50,037 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:07:50,038 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 04:07:50,038 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:07:50,038 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:07:50,038 INFO L82 PathProgramCache]: Analyzing trace with hash -1778582221, now seen corresponding path program 1 times [2018-11-07 04:07:50,039 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:07:50,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:07:50,039 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:07:50,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:07:50,040 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:07:50,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:07:50,319 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2018-11-07 04:07:50,319 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 04:07:50,319 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 04:07:50,319 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:07:50,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 04:07:50,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 04:07:50,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 04:07:50,321 INFO L87 Difference]: Start difference. First operand 10108 states and 14258 transitions. Second operand 4 states. [2018-11-07 04:07:58,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 04:07:58,042 INFO L93 Difference]: Finished difference Result 28811 states and 41798 transitions. [2018-11-07 04:07:58,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 04:07:58,043 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 247 [2018-11-07 04:07:58,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 04:07:58,115 INFO L225 Difference]: With dead ends: 28811 [2018-11-07 04:07:58,115 INFO L226 Difference]: Without dead ends: 18709 [2018-11-07 04:07:58,172 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 04:07:58,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18709 states. [2018-11-07 04:07:58,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18709 to 18709. [2018-11-07 04:07:58,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18709 states. [2018-11-07 04:07:58,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18709 states to 18709 states and 25926 transitions. [2018-11-07 04:07:58,553 INFO L78 Accepts]: Start accepts. Automaton has 18709 states and 25926 transitions. Word has length 247 [2018-11-07 04:07:58,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 04:07:58,554 INFO L480 AbstractCegarLoop]: Abstraction has 18709 states and 25926 transitions. [2018-11-07 04:07:58,554 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 04:07:58,554 INFO L276 IsEmpty]: Start isEmpty. Operand 18709 states and 25926 transitions. [2018-11-07 04:07:58,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2018-11-07 04:07:58,574 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:07:58,574 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 04:07:58,575 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:07:58,575 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:07:58,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1669490635, now seen corresponding path program 1 times [2018-11-07 04:07:58,575 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:07:58,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:07:58,576 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:07:58,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:07:58,577 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:07:58,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:07:58,991 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 148 proven. 42 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 04:07:58,992 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 04:07:58,992 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 04:07:58,994 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 292 with the following transitions: [2018-11-07 04:07:58,997 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1903], [1911], [1919], [1927], [1931], [1933], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2264], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2368], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-11-07 04:07:59,091 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 04:07:59,092 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 04:08:02,598 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 04:08:02,681 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 04:08:02,682 INFO L272 AbstractInterpreter]: Visited 138 different actions 138 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 04:08:02,695 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:08:02,695 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 04:08:04,972 INFO L227 lantSequenceWeakener]: Weakened 283 states. On average, predicates are now at 77.87% of their original sizes. [2018-11-07 04:08:04,973 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 04:08:05,451 INFO L415 sIntCurrentIteration]: We unified 290 AI predicates to 290 [2018-11-07 04:08:05,451 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 04:08:05,452 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 04:08:05,452 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2018-11-07 04:08:05,453 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:08:05,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-07 04:08:05,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-07 04:08:05,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-07 04:08:05,454 INFO L87 Difference]: Start difference. First operand 18709 states and 25926 transitions. Second operand 7 states. [2018-11-07 04:08:57,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 04:08:57,463 INFO L93 Difference]: Finished difference Result 38117 states and 52714 transitions. [2018-11-07 04:08:57,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 04:08:57,463 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 291 [2018-11-07 04:08:57,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 04:08:57,523 INFO L225 Difference]: With dead ends: 38117 [2018-11-07 04:08:57,523 INFO L226 Difference]: Without dead ends: 19414 [2018-11-07 04:08:57,566 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 291 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-11-07 04:08:57,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19414 states. [2018-11-07 04:08:57,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19414 to 19412. [2018-11-07 04:08:57,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19412 states. [2018-11-07 04:08:57,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19412 states to 19412 states and 26641 transitions. [2018-11-07 04:08:57,947 INFO L78 Accepts]: Start accepts. Automaton has 19412 states and 26641 transitions. Word has length 291 [2018-11-07 04:08:57,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 04:08:57,947 INFO L480 AbstractCegarLoop]: Abstraction has 19412 states and 26641 transitions. [2018-11-07 04:08:57,947 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-07 04:08:57,948 INFO L276 IsEmpty]: Start isEmpty. Operand 19412 states and 26641 transitions. [2018-11-07 04:08:57,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2018-11-07 04:08:57,971 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:08:57,971 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:08:57,972 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:08:57,972 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:08:57,972 INFO L82 PathProgramCache]: Analyzing trace with hash 1087569641, now seen corresponding path program 1 times [2018-11-07 04:08:57,972 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:08:57,973 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:08:57,973 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:08:57,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:08:57,974 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:08:58,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:08:58,545 WARN L179 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-07 04:08:58,957 WARN L179 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-07 04:08:59,386 WARN L179 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-11-07 04:08:59,975 WARN L179 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-11-07 04:09:00,463 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 191 proven. 283 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 04:09:00,464 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 04:09:00,464 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 04:09:00,464 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 479 with the following transitions: [2018-11-07 04:09:00,465 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1903], [1911], [1919], [1927], [1931], [1933], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2264], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2368], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2584], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-11-07 04:09:00,473 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 04:09:00,473 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 04:09:02,882 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 04:09:12,527 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 04:09:12,528 INFO L272 AbstractInterpreter]: Visited 196 different actions 385 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 04:09:12,534 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:09:12,534 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 04:09:17,487 INFO L227 lantSequenceWeakener]: Weakened 186 states. On average, predicates are now at 77.57% of their original sizes. [2018-11-07 04:09:17,488 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 04:10:00,772 INFO L415 sIntCurrentIteration]: We unified 477 AI predicates to 477 [2018-11-07 04:10:00,772 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 04:10:00,772 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 04:10:00,772 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [11] total 24 [2018-11-07 04:10:00,773 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:10:00,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-07 04:10:00,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-07 04:10:00,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2018-11-07 04:10:00,774 INFO L87 Difference]: Start difference. First operand 19412 states and 26641 transitions. Second operand 15 states. Received shutdown request... [2018-11-07 04:10:52,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-07 04:10:52,125 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 04:10:52,131 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 04:10:52,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 04:10:52 BoogieIcfgContainer [2018-11-07 04:10:52,132 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 04:10:52,133 INFO L168 Benchmark]: Toolchain (without parser) took 223822.49 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 2.1 GB in the end (delta: -632.5 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-11-07 04:10:52,134 INFO L168 Benchmark]: CDTParser took 0.24 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 04:10:52,135 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1818.97 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2018-11-07 04:10:52,135 INFO L168 Benchmark]: Boogie Procedure Inliner took 289.31 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 784.3 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -975.0 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-11-07 04:10:52,136 INFO L168 Benchmark]: Boogie Preprocessor took 217.73 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. [2018-11-07 04:10:52,137 INFO L168 Benchmark]: RCFGBuilder took 7254.61 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 522.1 MB). Peak memory consumption was 522.1 MB. Max. memory is 7.1 GB. [2018-11-07 04:10:52,138 INFO L168 Benchmark]: TraceAbstraction took 214236.99 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 2.1 GB in the end (delta: -341.2 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-11-07 04:10:52,143 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 1818.97 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 289.31 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 784.3 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -975.0 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 217.73 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7254.61 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 522.1 MB). Peak memory consumption was 522.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 214236.99 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 2.1 GB in the end (delta: -341.2 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 141]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 141). Cancelled while BasicCegarLoop was constructing difference of abstraction (19412states) and FLOYD_HOARE automaton (currently 9 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (175 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 214.1s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 140.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2556 SDtfs, 12892 SDslu, 690 SDs, 0 SdLazy, 22614 SolverSat, 6330 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 76.3s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 812 GetRequests, 690 SyntacticMatches, 75 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 357 ImplicationChecksByTransitivity, 44.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19412occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 15.7s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9968137671711731 AbsIntWeakeningRatio, 0.07561929595827901 AbsIntAvgWeakeningVarsNumRemoved, 354.47979139504565 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 6 MinimizatonAttempts, 144 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 1583 NumberOfCodeBlocks, 1583 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1576 ConstructedInterpolants, 0 QuantifiedInterpolants, 2413257 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 658/983 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown