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-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label45_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 09:18:48,264 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 09:18:48,267 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 09:18:48,285 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 09:18:48,287 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 09:18:48,288 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 09:18:48,290 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 09:18:48,292 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 09:18:48,295 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 09:18:48,296 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 09:18:48,298 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 09:18:48,298 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 09:18:48,299 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 09:18:48,301 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 09:18:48,302 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 09:18:48,310 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 09:18:48,314 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 09:18:48,316 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 09:18:48,320 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 09:18:48,325 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 09:18:48,327 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 09:18:48,328 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 09:18:48,333 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 09:18:48,333 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 09:18:48,333 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 09:18:48,335 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 09:18:48,336 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 09:18:48,336 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 09:18:48,340 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 09:18:48,341 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 09:18:48,341 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 09:18:48,344 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 09:18:48,344 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 09:18:48,344 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 09:18:48,347 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 09:18:48,347 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 09:18:48,348 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-11-07 09:18:48,380 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 09:18:48,381 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 09:18:48,382 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 09:18:48,382 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 09:18:48,382 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 09:18:48,382 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 09:18:48,382 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-07 09:18:48,383 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 09:18:48,384 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 09:18:48,384 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 09:18:48,384 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 09:18:48,384 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 09:18:48,384 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 09:18:48,385 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 09:18:48,385 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 09:18:48,385 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 09:18:48,386 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 09:18:48,386 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 09:18:48,386 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 09:18:48,386 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 09:18:48,386 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 09:18:48,388 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 09:18:48,389 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 09:18:48,389 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 09:18:48,389 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 09:18:48,389 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 09:18:48,389 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 09:18:48,390 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 09:18:48,390 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 09:18:48,390 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 09:18:48,390 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 09:18:48,390 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 09:18:48,391 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 09:18:48,391 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 09:18:48,391 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 09:18:48,391 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 09:18:48,442 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 09:18:48,462 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 09:18:48,466 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 09:18:48,468 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 09:18:48,468 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 09:18:48,469 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label45_true-unreach-call.c [2018-11-07 09:18:48,544 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff8c27426/a5176086a08f4b5fbbcbde87ad02b8fd/FLAGf5c19c722 [2018-11-07 09:18:49,271 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 09:18:49,272 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label45_true-unreach-call.c [2018-11-07 09:18:49,293 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff8c27426/a5176086a08f4b5fbbcbde87ad02b8fd/FLAGf5c19c722 [2018-11-07 09:18:49,313 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff8c27426/a5176086a08f4b5fbbcbde87ad02b8fd [2018-11-07 09:18:49,326 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 09:18:49,328 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 09:18:49,329 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 09:18:49,329 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 09:18:49,333 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 09:18:49,334 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:18:49" (1/1) ... [2018-11-07 09:18:49,337 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9260898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:18:49, skipping insertion in model container [2018-11-07 09:18:49,338 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:18:49" (1/1) ... [2018-11-07 09:18:49,348 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 09:18:49,435 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 09:18:50,176 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 09:18:50,180 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 09:18:50,437 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 09:18:50,463 INFO L193 MainTranslator]: Completed translation [2018-11-07 09:18:50,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:18:50 WrapperNode [2018-11-07 09:18:50,464 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 09:18:50,465 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 09:18:50,465 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 09:18:50,466 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 09:18:50,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:18:50" (1/1) ... [2018-11-07 09:18:50,725 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:18:50" (1/1) ... [2018-11-07 09:18:50,745 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 09:18:50,746 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 09:18:50,746 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 09:18:50,746 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 09:18:50,763 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:18:50" (1/1) ... [2018-11-07 09:18:50,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:18:50" (1/1) ... [2018-11-07 09:18:50,772 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:18:50" (1/1) ... [2018-11-07 09:18:50,774 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:18:50" (1/1) ... [2018-11-07 09:18:50,841 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:18:50" (1/1) ... [2018-11-07 09:18:50,872 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:18:50" (1/1) ... [2018-11-07 09:18:50,890 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:18:50" (1/1) ... [2018-11-07 09:18:50,903 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 09:18:50,905 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 09:18:50,905 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 09:18:50,905 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 09:18:50,906 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:18:50" (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 09:18:50,983 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 09:18:50,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 09:18:50,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 09:18:50,984 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 09:18:50,984 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 09:18:50,984 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 09:18:50,984 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 09:18:50,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 09:18:50,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 09:18:50,985 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 09:18:50,985 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 09:18:57,228 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 09:18:57,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:18:57 BoogieIcfgContainer [2018-11-07 09:18:57,229 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 09:18:57,230 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 09:18:57,231 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 09:18:57,234 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 09:18:57,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 09:18:49" (1/3) ... [2018-11-07 09:18:57,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fec3dda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:18:57, skipping insertion in model container [2018-11-07 09:18:57,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:18:50" (2/3) ... [2018-11-07 09:18:57,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fec3dda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:18:57, skipping insertion in model container [2018-11-07 09:18:57,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:18:57" (3/3) ... [2018-11-07 09:18:57,240 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label45_true-unreach-call.c [2018-11-07 09:18:57,255 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 09:18:57,264 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 09:18:57,283 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 09:18:57,327 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 09:18:57,328 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 09:18:57,328 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 09:18:57,328 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 09:18:57,328 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 09:18:57,329 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 09:18:57,329 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 09:18:57,329 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 09:18:57,362 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-11-07 09:18:57,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-11-07 09:18:57,376 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:18:57,379 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] [2018-11-07 09:18:57,381 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:18:57,387 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:18:57,388 INFO L82 PathProgramCache]: Analyzing trace with hash -1570242596, now seen corresponding path program 1 times [2018-11-07 09:18:57,391 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:18:57,442 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:18:57,443 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:18:57,443 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:18:57,443 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:18:57,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:18:57,942 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-11-07 09:18:58,012 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 09:18:58,014 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:18:58,015 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 09:18:58,015 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:18:58,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 09:18:58,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 09:18:58,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 09:18:58,050 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 4 states. [2018-11-07 09:19:03,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:19:03,956 INFO L93 Difference]: Finished difference Result 1513 states and 2838 transitions. [2018-11-07 09:19:03,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 09:19:03,959 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 60 [2018-11-07 09:19:03,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:19:03,986 INFO L225 Difference]: With dead ends: 1513 [2018-11-07 09:19:03,986 INFO L226 Difference]: Without dead ends: 1097 [2018-11-07 09:19:03,995 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 09:19:04,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2018-11-07 09:19:04,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 744. [2018-11-07 09:19:04,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-11-07 09:19:04,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1301 transitions. [2018-11-07 09:19:04,117 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1301 transitions. Word has length 60 [2018-11-07 09:19:04,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:19:04,118 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1301 transitions. [2018-11-07 09:19:04,118 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 09:19:04,118 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1301 transitions. [2018-11-07 09:19:04,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-11-07 09:19:04,130 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:19:04,131 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, 1, 1, 1, 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 09:19:04,131 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:19:04,131 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:19:04,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1372196061, now seen corresponding path program 1 times [2018-11-07 09:19:04,132 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:19:04,133 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:19:04,133 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:19:04,133 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:19:04,134 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:19:04,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:19:04,387 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:19:04,388 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:19:04,389 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 09:19:04,389 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:19:04,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 09:19:04,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 09:19:04,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 09:19:04,392 INFO L87 Difference]: Start difference. First operand 744 states and 1301 transitions. Second operand 6 states. [2018-11-07 09:19:08,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:19:08,728 INFO L93 Difference]: Finished difference Result 2196 states and 3924 transitions. [2018-11-07 09:19:08,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 09:19:08,729 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 131 [2018-11-07 09:19:08,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:19:08,745 INFO L225 Difference]: With dead ends: 2196 [2018-11-07 09:19:08,746 INFO L226 Difference]: Without dead ends: 1458 [2018-11-07 09:19:08,749 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 09:19:08,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1458 states. [2018-11-07 09:19:08,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1458 to 1438. [2018-11-07 09:19:08,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1438 states. [2018-11-07 09:19:08,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1438 states to 1438 states and 2463 transitions. [2018-11-07 09:19:08,840 INFO L78 Accepts]: Start accepts. Automaton has 1438 states and 2463 transitions. Word has length 131 [2018-11-07 09:19:08,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:19:08,841 INFO L480 AbstractCegarLoop]: Abstraction has 1438 states and 2463 transitions. [2018-11-07 09:19:08,841 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 09:19:08,842 INFO L276 IsEmpty]: Start isEmpty. Operand 1438 states and 2463 transitions. [2018-11-07 09:19:08,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-11-07 09:19:08,850 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:19:08,851 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, 1, 1, 1, 1, 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 09:19:08,851 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:19:08,851 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:19:08,851 INFO L82 PathProgramCache]: Analyzing trace with hash 822565126, now seen corresponding path program 1 times [2018-11-07 09:19:08,851 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:19:08,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:19:08,853 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:19:08,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:19:08,853 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:19:08,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:19:09,074 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:19:09,075 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:19:09,075 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 09:19:09,075 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:19:09,075 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 09:19:09,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 09:19:09,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 09:19:09,076 INFO L87 Difference]: Start difference. First operand 1438 states and 2463 transitions. Second operand 5 states. [2018-11-07 09:19:13,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:19:13,429 INFO L93 Difference]: Finished difference Result 3597 states and 6200 transitions. [2018-11-07 09:19:13,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 09:19:13,438 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 132 [2018-11-07 09:19:13,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:19:13,453 INFO L225 Difference]: With dead ends: 3597 [2018-11-07 09:19:13,453 INFO L226 Difference]: Without dead ends: 2165 [2018-11-07 09:19:13,459 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 09:19:13,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2165 states. [2018-11-07 09:19:13,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2165 to 2145. [2018-11-07 09:19:13,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2145 states. [2018-11-07 09:19:13,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2145 states to 2145 states and 3126 transitions. [2018-11-07 09:19:13,533 INFO L78 Accepts]: Start accepts. Automaton has 2145 states and 3126 transitions. Word has length 132 [2018-11-07 09:19:13,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:19:13,534 INFO L480 AbstractCegarLoop]: Abstraction has 2145 states and 3126 transitions. [2018-11-07 09:19:13,534 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 09:19:13,534 INFO L276 IsEmpty]: Start isEmpty. Operand 2145 states and 3126 transitions. [2018-11-07 09:19:13,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2018-11-07 09:19:13,539 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:19:13,539 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:19:13,539 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:19:13,540 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:19:13,540 INFO L82 PathProgramCache]: Analyzing trace with hash 9848590, now seen corresponding path program 1 times [2018-11-07 09:19:13,540 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:19:13,541 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:19:13,541 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:19:13,542 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:19:13,542 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:19:13,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:19:13,916 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:19:13,916 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:19:13,917 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 09:19:13,917 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:19:13,918 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 09:19:13,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 09:19:13,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 09:19:13,919 INFO L87 Difference]: Start difference. First operand 2145 states and 3126 transitions. Second operand 6 states. [2018-11-07 09:19:17,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:19:17,903 INFO L93 Difference]: Finished difference Result 7058 states and 10436 transitions. [2018-11-07 09:19:17,903 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 09:19:17,903 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 224 [2018-11-07 09:19:17,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:19:17,940 INFO L225 Difference]: With dead ends: 7058 [2018-11-07 09:19:17,940 INFO L226 Difference]: Without dead ends: 4919 [2018-11-07 09:19:17,961 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 09:19:17,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4919 states. [2018-11-07 09:19:18,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4919 to 4879. [2018-11-07 09:19:18,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4879 states. [2018-11-07 09:19:18,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4879 states to 4879 states and 6857 transitions. [2018-11-07 09:19:18,127 INFO L78 Accepts]: Start accepts. Automaton has 4879 states and 6857 transitions. Word has length 224 [2018-11-07 09:19:18,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:19:18,128 INFO L480 AbstractCegarLoop]: Abstraction has 4879 states and 6857 transitions. [2018-11-07 09:19:18,128 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 09:19:18,128 INFO L276 IsEmpty]: Start isEmpty. Operand 4879 states and 6857 transitions. [2018-11-07 09:19:18,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2018-11-07 09:19:18,133 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:19:18,134 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:19:18,134 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:19:18,135 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:19:18,135 INFO L82 PathProgramCache]: Analyzing trace with hash 433783590, now seen corresponding path program 1 times [2018-11-07 09:19:18,135 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:19:18,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:19:18,136 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:19:18,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:19:18,136 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:19:18,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:19:18,566 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:19:18,567 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:19:18,567 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 09:19:18,568 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:19:18,568 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 09:19:18,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 09:19:18,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 09:19:18,569 INFO L87 Difference]: Start difference. First operand 4879 states and 6857 transitions. Second operand 6 states. [2018-11-07 09:19:22,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:19:22,109 INFO L93 Difference]: Finished difference Result 12216 states and 17406 transitions. [2018-11-07 09:19:22,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 09:19:22,112 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 244 [2018-11-07 09:19:22,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:19:22,153 INFO L225 Difference]: With dead ends: 12216 [2018-11-07 09:19:22,153 INFO L226 Difference]: Without dead ends: 7343 [2018-11-07 09:19:22,186 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 09:19:22,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7343 states. [2018-11-07 09:19:22,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7343 to 7306. [2018-11-07 09:19:22,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7306 states. [2018-11-07 09:19:22,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7306 states to 7306 states and 9825 transitions. [2018-11-07 09:19:22,380 INFO L78 Accepts]: Start accepts. Automaton has 7306 states and 9825 transitions. Word has length 244 [2018-11-07 09:19:22,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:19:22,381 INFO L480 AbstractCegarLoop]: Abstraction has 7306 states and 9825 transitions. [2018-11-07 09:19:22,381 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 09:19:22,381 INFO L276 IsEmpty]: Start isEmpty. Operand 7306 states and 9825 transitions. [2018-11-07 09:19:22,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2018-11-07 09:19:22,398 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:19:22,399 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:19:22,399 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:19:22,400 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:19:22,400 INFO L82 PathProgramCache]: Analyzing trace with hash -860566542, now seen corresponding path program 1 times [2018-11-07 09:19:22,400 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:19:22,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:19:22,401 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:19:22,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:19:22,402 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:19:22,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:19:23,429 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 184 proven. 37 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2018-11-07 09:19:23,430 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:19:23,430 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 09:19:23,431 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 425 with the following transitions: [2018-11-07 09:19:23,434 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [559], [561], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [672], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1048], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 09:19:23,492 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 09:19:23,493 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 09:19:24,076 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 09:19:24,080 INFO L272 AbstractInterpreter]: Visited 170 different actions 170 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 09:19:24,130 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:19:24,130 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 09:19:25,087 INFO L227 lantSequenceWeakener]: Weakened 412 states. On average, predicates are now at 77.78% of their original sizes. [2018-11-07 09:19:25,087 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 09:19:25,215 INFO L415 sIntCurrentIteration]: We unified 423 AI predicates to 423 [2018-11-07 09:19:25,215 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 09:19:25,216 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 09:19:25,216 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2018-11-07 09:19:25,217 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:19:25,217 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 09:19:25,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 09:19:25,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 09:19:25,218 INFO L87 Difference]: Start difference. First operand 7306 states and 9825 transitions. Second operand 6 states. [2018-11-07 09:20:44,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:20:44,466 INFO L93 Difference]: Finished difference Result 14946 states and 20038 transitions. [2018-11-07 09:20:44,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 09:20:44,467 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 424 [2018-11-07 09:20:44,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:20:44,499 INFO L225 Difference]: With dead ends: 14946 [2018-11-07 09:20:44,499 INFO L226 Difference]: Without dead ends: 7646 [2018-11-07 09:20:44,523 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 424 GetRequests, 419 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-07 09:20:44,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7646 states. [2018-11-07 09:20:44,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7646 to 7644. [2018-11-07 09:20:44,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7644 states. [2018-11-07 09:20:44,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7644 states to 7644 states and 10172 transitions. [2018-11-07 09:20:44,684 INFO L78 Accepts]: Start accepts. Automaton has 7644 states and 10172 transitions. Word has length 424 [2018-11-07 09:20:44,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:20:44,685 INFO L480 AbstractCegarLoop]: Abstraction has 7644 states and 10172 transitions. [2018-11-07 09:20:44,685 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 09:20:44,685 INFO L276 IsEmpty]: Start isEmpty. Operand 7644 states and 10172 transitions. [2018-11-07 09:20:44,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 517 [2018-11-07 09:20:44,710 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:20:44,711 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 09:20:44,711 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:20:44,711 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:20:44,712 INFO L82 PathProgramCache]: Analyzing trace with hash -738044364, now seen corresponding path program 1 times [2018-11-07 09:20:44,712 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:20:44,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:20:44,713 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:20:44,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:20:44,713 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:20:44,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:20:45,105 WARN L179 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-11-07 09:20:45,945 INFO L134 CoverageAnalysis]: Checked inductivity of 736 backedges. 289 proven. 265 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2018-11-07 09:20:45,946 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:20:45,946 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 09:20:45,946 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 517 with the following transitions: [2018-11-07 09:20:45,947 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [559], [561], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [672], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1048], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 09:20:45,961 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 09:20:45,961 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 09:20:46,360 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 09:20:46,361 INFO L272 AbstractInterpreter]: Visited 174 different actions 509 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 09:20:46,399 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:20:46,399 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 09:20:46,917 INFO L227 lantSequenceWeakener]: Weakened 513 states. On average, predicates are now at 80.42% of their original sizes. [2018-11-07 09:20:46,917 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 09:20:47,242 INFO L415 sIntCurrentIteration]: We unified 515 AI predicates to 515 [2018-11-07 09:20:47,243 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 09:20:47,243 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 09:20:47,243 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [7] total 15 [2018-11-07 09:20:47,243 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:20:47,244 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-07 09:20:47,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-07 09:20:47,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-07 09:20:47,245 INFO L87 Difference]: Start difference. First operand 7644 states and 10172 transitions. Second operand 10 states. Received shutdown request... [2018-11-07 09:22:54,566 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-07 09:22:54,566 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 09:22:54,571 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 09:22:54,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 09:22:54 BoogieIcfgContainer [2018-11-07 09:22:54,572 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 09:22:54,572 INFO L168 Benchmark]: Toolchain (without parser) took 245246.25 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.3 GB in the end (delta: -1.9 GB). Peak memory consumption was 824.0 MB. Max. memory is 7.1 GB. [2018-11-07 09:22:54,575 INFO L168 Benchmark]: CDTParser took 0.21 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 09:22:54,575 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1135.56 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-11-07 09:22:54,576 INFO L168 Benchmark]: Boogie Procedure Inliner took 280.33 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 778.6 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -904.6 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2018-11-07 09:22:54,578 INFO L168 Benchmark]: Boogie Preprocessor took 158.44 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 09:22:54,578 INFO L168 Benchmark]: RCFGBuilder took 6324.63 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 262.3 MB). Peak memory consumption was 262.3 MB. Max. memory is 7.1 GB. [2018-11-07 09:22:54,579 INFO L168 Benchmark]: TraceAbstraction took 237341.51 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 3.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 603.2 MB. Max. memory is 7.1 GB. [2018-11-07 09:22:54,584 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 1135.56 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 280.33 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 778.6 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -904.6 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 158.44 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 6324.63 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 262.3 MB). Peak memory consumption was 262.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 237341.51 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 3.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 603.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 166]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 166). Cancelled while BasicCegarLoop was constructing difference of abstraction (7644states) and FLOYD_HOARE automaton (currently 19 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (8289 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 237.2s OverallTime, 7 OverallIterations, 5 TraceHistogramMax, 228.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1138 SDtfs, 10617 SDslu, 1277 SDs, 0 SdLazy, 13298 SolverSat, 4013 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 195.1s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 994 GetRequests, 938 SyntacticMatches, 4 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7644occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.1s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.997761242610306 AbsIntWeakeningRatio, 0.07462686567164178 AbsIntAvgWeakeningVarsNumRemoved, 16.00852878464819 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 6 MinimizatonAttempts, 472 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 1731 NumberOfCodeBlocks, 1731 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1724 ConstructedInterpolants, 0 QuantifiedInterpolants, 2556226 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 1075/1377 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown