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-INT-LIM.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label18_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-63daa26 [2018-11-12 19:40:23,301 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 19:40:23,303 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 19:40:23,316 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 19:40:23,316 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 19:40:23,317 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 19:40:23,318 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 19:40:23,320 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 19:40:23,322 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 19:40:23,323 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 19:40:23,324 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 19:40:23,324 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 19:40:23,325 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 19:40:23,326 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 19:40:23,327 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 19:40:23,328 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 19:40:23,329 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 19:40:23,331 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 19:40:23,333 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 19:40:23,335 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 19:40:23,336 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 19:40:23,337 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 19:40:23,340 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-12 19:40:23,340 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-12 19:40:23,340 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-12 19:40:23,342 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-12 19:40:23,343 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-12 19:40:23,343 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-12 19:40:23,344 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-12 19:40:23,346 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-12 19:40:23,346 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-12 19:40:23,347 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-12 19:40:23,347 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-12 19:40:23,347 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-12 19:40:23,348 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-12 19:40:23,349 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-12 19:40:23,349 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-12 19:40:23,365 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 19:40:23,365 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 19:40:23,366 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 19:40:23,366 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 19:40:23,367 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 19:40:23,367 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 19:40:23,367 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 19:40:23,367 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 19:40:23,367 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 19:40:23,368 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 19:40:23,368 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 19:40:23,368 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 19:40:23,368 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 19:40:23,369 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 19:40:23,369 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 19:40:23,369 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 19:40:23,370 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 19:40:23,370 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 19:40:23,370 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 19:40:23,370 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 19:40:23,370 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 19:40:23,371 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 19:40:23,371 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 19:40:23,371 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 19:40:23,371 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 19:40:23,371 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 19:40:23,372 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 19:40:23,372 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 19:40:23,372 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 19:40:23,372 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 19:40:23,373 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 19:40:23,373 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 19:40:23,373 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 19:40:23,373 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 19:40:23,373 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 19:40:23,416 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 19:40:23,434 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 19:40:23,438 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 19:40:23,440 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 19:40:23,440 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 19:40:23,441 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label18_true-unreach-call.c [2018-11-12 19:40:23,521 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d74541e90/e8bdd0cdaee74b4aba8975f31a07df24/FLAGcdce68acb [2018-11-12 19:40:24,275 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 19:40:24,276 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label18_true-unreach-call.c [2018-11-12 19:40:24,306 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d74541e90/e8bdd0cdaee74b4aba8975f31a07df24/FLAGcdce68acb [2018-11-12 19:40:24,326 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d74541e90/e8bdd0cdaee74b4aba8975f31a07df24 [2018-11-12 19:40:24,339 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 19:40:24,341 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 19:40:24,342 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 19:40:24,343 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 19:40:24,350 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 19:40:24,351 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:40:24" (1/1) ... [2018-11-12 19:40:24,355 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74986fa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:40:24, skipping insertion in model container [2018-11-12 19:40:24,355 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:40:24" (1/1) ... [2018-11-12 19:40:24,366 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 19:40:24,523 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 19:40:25,682 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 19:40:25,687 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 19:40:26,087 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 19:40:26,121 INFO L193 MainTranslator]: Completed translation [2018-11-12 19:40:26,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:40:26 WrapperNode [2018-11-12 19:40:26,122 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 19:40:26,123 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 19:40:26,124 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 19:40:26,124 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 19:40:26,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:40:26" (1/1) ... [2018-11-12 19:40:26,414 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:40:26" (1/1) ... [2018-11-12 19:40:26,424 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 19:40:26,424 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 19:40:26,425 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 19:40:26,425 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 19:40:26,436 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:40:26" (1/1) ... [2018-11-12 19:40:26,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:40:26" (1/1) ... [2018-11-12 19:40:26,452 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:40:26" (1/1) ... [2018-11-12 19:40:26,452 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:40:26" (1/1) ... [2018-11-12 19:40:26,548 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:40:26" (1/1) ... [2018-11-12 19:40:26,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:40:26" (1/1) ... [2018-11-12 19:40:26,633 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:40:26" (1/1) ... [2018-11-12 19:40:26,663 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 19:40:26,664 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 19:40:26,664 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 19:40:26,664 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 19:40:26,665 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:40:26" (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 [2018-11-12 19:40:26,734 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-12 19:40:26,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 19:40:26,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 19:40:26,735 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-12 19:40:26,735 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-12 19:40:26,736 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-12 19:40:26,737 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-12 19:40:26,737 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-12 19:40:26,737 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-12 19:40:26,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 19:40:26,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 19:40:26,738 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 19:40:26,738 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 19:40:34,217 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 19:40:34,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:40:34 BoogieIcfgContainer [2018-11-12 19:40:34,218 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 19:40:34,219 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 19:40:34,219 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 19:40:34,223 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 19:40:34,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 07:40:24" (1/3) ... [2018-11-12 19:40:34,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26cabfad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:40:34, skipping insertion in model container [2018-11-12 19:40:34,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:40:26" (2/3) ... [2018-11-12 19:40:34,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26cabfad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:40:34, skipping insertion in model container [2018-11-12 19:40:34,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:40:34" (3/3) ... [2018-11-12 19:40:34,227 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label18_true-unreach-call.c [2018-11-12 19:40:34,237 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 19:40:34,247 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 19:40:34,265 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 19:40:34,312 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 19:40:34,312 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 19:40:34,312 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 19:40:34,313 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 19:40:34,313 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 19:40:34,313 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 19:40:34,313 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 19:40:34,313 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 19:40:34,352 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-11-12 19:40:34,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-11-12 19:40:34,362 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:40:34,364 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:40:34,366 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:40:34,373 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:40:34,373 INFO L82 PathProgramCache]: Analyzing trace with hash -502294996, now seen corresponding path program 1 times [2018-11-12 19:40:34,376 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:40:34,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:40:34,433 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:40:34,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:40:34,433 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:40:34,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:40:34,922 WARN L179 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 19:40:35,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:40:35,049 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:40:35,050 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-12 19:40:35,050 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:40:35,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-12 19:40:35,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-12 19:40:35,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 19:40:35,078 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 3 states. [2018-11-12 19:40:41,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:40:41,645 INFO L93 Difference]: Finished difference Result 2251 states and 4322 transitions. [2018-11-12 19:40:41,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-12 19:40:41,652 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2018-11-12 19:40:41,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:40:41,704 INFO L225 Difference]: With dead ends: 2251 [2018-11-12 19:40:41,704 INFO L226 Difference]: Without dead ends: 1474 [2018-11-12 19:40:41,721 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 [2018-11-12 19:40:41,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2018-11-12 19:40:41,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1474. [2018-11-12 19:40:41,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-11-12 19:40:41,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2801 transitions. [2018-11-12 19:40:41,880 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2801 transitions. Word has length 64 [2018-11-12 19:40:41,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:40:41,881 INFO L480 AbstractCegarLoop]: Abstraction has 1474 states and 2801 transitions. [2018-11-12 19:40:41,881 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-12 19:40:41,881 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2801 transitions. [2018-11-12 19:40:41,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-11-12 19:40:41,890 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:40:41,890 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-12 19:40:41,891 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:40:41,891 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:40:41,891 INFO L82 PathProgramCache]: Analyzing trace with hash -1983682478, now seen corresponding path program 1 times [2018-11-12 19:40:41,891 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:40:41,892 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:40:41,892 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:40:41,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:40:41,893 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:40:41,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:40:42,219 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:40:42,220 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:40:42,220 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 19:40:42,220 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:40:42,222 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 19:40:42,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 19:40:42,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 19:40:42,223 INFO L87 Difference]: Start difference. First operand 1474 states and 2801 transitions. Second operand 6 states. [2018-11-12 19:40:51,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:40:51,176 INFO L93 Difference]: Finished difference Result 4416 states and 8482 transitions. [2018-11-12 19:40:51,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 19:40:51,177 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 154 [2018-11-12 19:40:51,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:40:51,198 INFO L225 Difference]: With dead ends: 4416 [2018-11-12 19:40:51,199 INFO L226 Difference]: Without dead ends: 2948 [2018-11-12 19:40:51,204 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 [2018-11-12 19:40:51,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2948 states. [2018-11-12 19:40:51,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2948 to 2922. [2018-11-12 19:40:51,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2922 states. [2018-11-12 19:40:51,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2922 states to 2922 states and 5419 transitions. [2018-11-12 19:40:51,292 INFO L78 Accepts]: Start accepts. Automaton has 2922 states and 5419 transitions. Word has length 154 [2018-11-12 19:40:51,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:40:51,293 INFO L480 AbstractCegarLoop]: Abstraction has 2922 states and 5419 transitions. [2018-11-12 19:40:51,293 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 19:40:51,293 INFO L276 IsEmpty]: Start isEmpty. Operand 2922 states and 5419 transitions. [2018-11-12 19:40:51,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-11-12 19:40:51,298 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:40:51,299 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-12 19:40:51,299 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:40:51,299 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:40:51,299 INFO L82 PathProgramCache]: Analyzing trace with hash 119738927, now seen corresponding path program 1 times [2018-11-12 19:40:51,299 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:40:51,300 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:40:51,301 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:40:51,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:40:51,301 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:40:51,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:40:51,557 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:40:51,557 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:40:51,557 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 19:40:51,558 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:40:51,558 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 19:40:51,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 19:40:51,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-12 19:40:51,559 INFO L87 Difference]: Start difference. First operand 2922 states and 5419 transitions. Second operand 6 states. [2018-11-12 19:41:02,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:41:02,387 INFO L93 Difference]: Finished difference Result 11793 states and 22898 transitions. [2018-11-12 19:41:02,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-12 19:41:02,388 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 155 [2018-11-12 19:41:02,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:41:02,457 INFO L225 Difference]: With dead ends: 11793 [2018-11-12 19:41:02,458 INFO L226 Difference]: Without dead ends: 8877 [2018-11-12 19:41:02,490 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-12 19:41:02,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8877 states. [2018-11-12 19:41:02,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8877 to 8802. [2018-11-12 19:41:02,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8802 states. [2018-11-12 19:41:02,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8802 states to 8802 states and 14072 transitions. [2018-11-12 19:41:02,757 INFO L78 Accepts]: Start accepts. Automaton has 8802 states and 14072 transitions. Word has length 155 [2018-11-12 19:41:02,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:41:02,758 INFO L480 AbstractCegarLoop]: Abstraction has 8802 states and 14072 transitions. [2018-11-12 19:41:02,758 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 19:41:02,758 INFO L276 IsEmpty]: Start isEmpty. Operand 8802 states and 14072 transitions. [2018-11-12 19:41:02,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2018-11-12 19:41:02,765 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:41:02,766 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:41:02,766 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:41:02,766 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:41:02,766 INFO L82 PathProgramCache]: Analyzing trace with hash -720272287, now seen corresponding path program 1 times [2018-11-12 19:41:02,767 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:41:02,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:41:02,768 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:41:02,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:41:02,768 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:41:02,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:41:02,997 WARN L179 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 19:41:03,119 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 114 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-12 19:41:03,119 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:41:03,119 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:41:03,120 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 226 with the following transitions: [2018-11-12 19:41:03,122 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], [1935], [1943], [1951], [1959], [1967], [1975], [1983], [1991], [1999], [2007], [2015], [2023], [2031], [2035], [2037], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2116], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2200], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-11-12 19:41:03,192 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:41:03,193 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:41:03,750 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:41:03,757 INFO L272 AbstractInterpreter]: Visited 96 different actions 96 times. Never merged. Never widened. Performed 795 root evaluator evaluations with a maximum evaluation depth of 6. Performed 795 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Never found a fixpoint. Largest state had 24 variables. [2018-11-12 19:41:03,799 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:41:03,800 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:41:04,396 INFO L227 lantSequenceWeakener]: Weakened 216 states. On average, predicates are now at 78.23% of their original sizes. [2018-11-12 19:41:04,397 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:41:04,762 INFO L415 sIntCurrentIteration]: We unified 224 AI predicates to 224 [2018-11-12 19:41:04,762 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:41:04,765 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:41:04,766 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2018-11-12 19:41:04,766 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:41:04,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-12 19:41:04,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-12 19:41:04,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-12 19:41:04,767 INFO L87 Difference]: Start difference. First operand 8802 states and 14072 transitions. Second operand 7 states. [2018-11-12 19:41:12,814 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:41:39,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:41:39,409 INFO L93 Difference]: Finished difference Result 18303 states and 29044 transitions. [2018-11-12 19:41:39,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 19:41:39,410 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 225 [2018-11-12 19:41:39,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:41:39,460 INFO L225 Difference]: With dead ends: 18303 [2018-11-12 19:41:39,460 INFO L226 Difference]: Without dead ends: 9507 [2018-11-12 19:41:39,489 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 225 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-11-12 19:41:39,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9507 states. [2018-11-12 19:41:39,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9507 to 9505. [2018-11-12 19:41:39,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9505 states. [2018-11-12 19:41:39,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9505 states to 9505 states and 14784 transitions. [2018-11-12 19:41:39,716 INFO L78 Accepts]: Start accepts. Automaton has 9505 states and 14784 transitions. Word has length 225 [2018-11-12 19:41:39,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:41:39,716 INFO L480 AbstractCegarLoop]: Abstraction has 9505 states and 14784 transitions. [2018-11-12 19:41:39,716 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-12 19:41:39,717 INFO L276 IsEmpty]: Start isEmpty. Operand 9505 states and 14784 transitions. [2018-11-12 19:41:39,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2018-11-12 19:41:39,728 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:41:39,729 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, 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, 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, 1, 1, 1, 1] [2018-11-12 19:41:39,729 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:41:39,730 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:41:39,730 INFO L82 PathProgramCache]: Analyzing trace with hash -572310658, now seen corresponding path program 1 times [2018-11-12 19:41:39,730 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:41:39,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:41:39,731 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:41:39,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:41:39,732 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:41:39,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:41:40,766 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 230 proven. 167 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-12 19:41:40,766 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:41:40,766 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:41:40,766 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 413 with the following transitions: [2018-11-12 19:41:40,767 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], [1935], [1943], [1951], [1959], [1967], [1975], [1983], [1991], [1999], [2007], [2015], [2023], [2031], [2035], [2037], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2116], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2200], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [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], [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] [2018-11-12 19:41:40,775 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:41:40,776 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:41:42,408 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:41:42,409 INFO L272 AbstractInterpreter]: Visited 196 different actions 388 times. Merged at 5 different actions 7 times. Never widened. Performed 7756 root evaluator evaluations with a maximum evaluation depth of 6. Performed 7756 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 19:41:42,449 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:41:42,449 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:41:43,677 INFO L227 lantSequenceWeakener]: Weakened 53 states. On average, predicates are now at 77.62% of their original sizes. [2018-11-12 19:41:43,678 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:41:44,986 INFO L415 sIntCurrentIteration]: We unified 411 AI predicates to 411 [2018-11-12 19:41:44,986 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:41:44,987 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:41:44,987 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [11] total 25 [2018-11-12 19:41:44,987 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:41:44,988 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-12 19:41:44,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-12 19:41:44,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2018-11-12 19:41:44,989 INFO L87 Difference]: Start difference. First operand 9505 states and 14784 transitions. Second operand 16 states. [2018-11-12 19:42:07,997 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:42:48,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:42:48,116 INFO L93 Difference]: Finished difference Result 21053 states and 32323 transitions. [2018-11-12 19:42:48,116 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-11-12 19:42:48,116 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 412 [2018-11-12 19:42:48,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:42:48,176 INFO L225 Difference]: With dead ends: 21053 [2018-11-12 19:42:48,177 INFO L226 Difference]: Without dead ends: 12257 [2018-11-12 19:42:48,207 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 422 GetRequests, 397 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=143, Invalid=559, Unknown=0, NotChecked=0, Total=702 [2018-11-12 19:42:48,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12257 states. [2018-11-12 19:42:48,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12257 to 12002. [2018-11-12 19:42:48,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12002 states. [2018-11-12 19:42:48,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12002 states to 12002 states and 17324 transitions. [2018-11-12 19:42:48,481 INFO L78 Accepts]: Start accepts. Automaton has 12002 states and 17324 transitions. Word has length 412 [2018-11-12 19:42:48,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:42:48,482 INFO L480 AbstractCegarLoop]: Abstraction has 12002 states and 17324 transitions. [2018-11-12 19:42:48,483 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-12 19:42:48,483 INFO L276 IsEmpty]: Start isEmpty. Operand 12002 states and 17324 transitions. [2018-11-12 19:42:48,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 555 [2018-11-12 19:42:48,504 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:42:48,505 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:42:48,506 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:42:48,506 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:42:48,506 INFO L82 PathProgramCache]: Analyzing trace with hash -17070577, now seen corresponding path program 1 times [2018-11-12 19:42:48,506 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:42:48,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:42:48,511 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:42:48,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:42:48,511 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:42:48,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:42:48,987 WARN L179 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 19:42:49,489 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 177 proven. 153 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-11-12 19:42:49,489 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:42:49,490 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:42:49,490 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 555 with the following transitions: [2018-11-12 19:42:49,492 INFO L202 CegarAbsIntRunner]: [0], [1], [740], [744], [748], [752], [756], [760], [764], [768], [772], [776], [780], [784], [788], [792], [796], [800], [804], [808], [812], [816], [820], [824], [828], [832], [836], [840], [844], [848], [852], [856], [860], [864], [868], [872], [876], [879], [1623], [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], [1935], [1943], [1951], [1959], [1967], [1975], [1983], [1991], [1999], [2007], [2015], [2023], [2031], [2035], [2037], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2116], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2200], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [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], [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], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2681], [2685], [2689], [2693], [2697], [2701], [2705], [2709], [2713], [2717], [2721], [2725], [2729], [2733], [2737], [2741], [2745], [2749], [2753], [2757], [2761], [2765], [2769], [2773], [2777], [2781], [2785], [2789], [2793], [2797], [2801], [2805], [2809], [2813], [2817], [2821], [2825], [2829], [2833], [2837], [2841], [2845], [2849], [2853], [2857], [2861], [2865], [2869], [2873], [2877], [2881], [2885], [2889], [2893], [2897], [2901], [2905], [2909], [2913], [2917], [2921], [2925], [2929], [2933], [2937], [2941], [2945], [2949], [2953], [2957], [2961], [2965], [2969], [2973], [2977], [2981], [2985], [2989], [2993], [2995], [2996], [3000], [3004], [3010], [3014], [3016], [3023], [3024], [3025], [3026], [3027], [3029], [3030] [2018-11-12 19:42:49,501 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:42:49,501 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:42:51,176 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:42:51,177 INFO L272 AbstractInterpreter]: Visited 338 different actions 669 times. Merged at 4 different actions 4 times. Never widened. Performed 9382 root evaluator evaluations with a maximum evaluation depth of 6. Performed 9382 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 19:42:51,214 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:42:51,214 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:42:52,310 INFO L227 lantSequenceWeakener]: Weakened 53 states. On average, predicates are now at 77.62% of their original sizes. [2018-11-12 19:42:52,310 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:42:52,782 INFO L415 sIntCurrentIteration]: We unified 553 AI predicates to 553 [2018-11-12 19:42:52,783 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:42:52,783 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:42:52,783 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [5] total 22 [2018-11-12 19:42:52,783 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:42:52,784 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-11-12 19:42:52,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-11-12 19:42:52,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2018-11-12 19:42:52,785 INFO L87 Difference]: Start difference. First operand 12002 states and 17324 transitions. Second operand 19 states. [2018-11-12 19:43:17,567 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-12 19:44:05,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-11-12 19:44:05,066 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-12 19:44:05,072 WARN L205 ceAbstractionStarter]: Timeout [2018-11-12 19:44:05,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 07:44:05 BoogieIcfgContainer [2018-11-12 19:44:05,072 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-12 19:44:05,073 INFO L168 Benchmark]: Toolchain (without parser) took 220733.28 ms. Allocated memory was 1.5 GB in the beginning and 4.5 GB in the end (delta: 3.0 GB). Free memory was 1.4 GB in the beginning and 3.1 GB in the end (delta: -1.7 GB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-11-12 19:44:05,074 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. [2018-11-12 19:44:05,075 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1779.80 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. [2018-11-12 19:44:05,075 INFO L168 Benchmark]: Boogie Procedure Inliner took 300.92 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 798.0 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -987.7 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-11-12 19:44:05,076 INFO L168 Benchmark]: Boogie Preprocessor took 239.11 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: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2018-11-12 19:44:05,077 INFO L168 Benchmark]: RCFGBuilder took 7554.39 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: 511.4 MB). Peak memory consumption was 511.4 MB. Max. memory is 7.1 GB. [2018-11-12 19:44:05,078 INFO L168 Benchmark]: TraceAbstraction took 210852.85 ms. Allocated memory was 2.3 GB in the beginning and 4.5 GB in the end (delta: 2.2 GB). Free memory was 1.7 GB in the beginning and 3.1 GB in the end (delta: -1.4 GB). Peak memory consumption was 810.8 MB. Max. memory is 7.1 GB. [2018-11-12 19:44:05,083 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 1779.80 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 300.92 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 798.0 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -987.7 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 239.11 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: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7554.39 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: 511.4 MB). Peak memory consumption was 511.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 210852.85 ms. Allocated memory was 2.3 GB in the beginning and 4.5 GB in the end (delta: 2.2 GB). Free memory was 1.7 GB in the beginning and 3.1 GB in the end (delta: -1.4 GB). Peak memory consumption was 810.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 180]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 180). Cancelled while BasicCegarLoop was constructing difference of abstraction (12002states) and FLOYD_HOARE automaton (currently 29 states, 19 states before enhancement),while ReachableStatesComputation was computing reachable states (16274 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 210.7s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 196.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2621 SDtfs, 22427 SDslu, 1160 SDs, 0 SdLazy, 39350 SolverSat, 5324 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 81.7s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 1238 GetRequests, 1159 SyntacticMatches, 3 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12002occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 4.0s AbstIntTime, 3 AbstIntIterations, 3 AbstIntStrong, 0.9976887974417621 AbsIntWeakeningRatio, 0.07912457912457913 AbsIntAvgWeakeningVarsNumRemoved, 11.171717171717171 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 5 MinimizatonAttempts, 358 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 1564 NumberOfCodeBlocks, 1564 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1558 ConstructedInterpolants, 0 QuantifiedInterpolants, 2236163 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 717/1102 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown