java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label51_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 19:33:58,169 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 19:33:58,171 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 19:33:58,184 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 19:33:58,184 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 19:33:58,186 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 19:33:58,191 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 19:33:58,193 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 19:33:58,198 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 19:33:58,199 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 19:33:58,204 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 19:33:58,204 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 19:33:58,205 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 19:33:58,208 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 19:33:58,209 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 19:33:58,213 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 19:33:58,217 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 19:33:58,223 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 19:33:58,228 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 19:33:58,230 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 19:33:58,232 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 19:33:58,237 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 19:33:58,241 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 19:33:58,242 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 19:33:58,242 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 19:33:58,245 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 19:33:58,246 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 19:33:58,247 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 19:33:58,248 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 19:33:58,252 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 19:33:58,252 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 19:33:58,253 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 19:33:58,253 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 19:33:58,254 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 19:33:58,256 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 19:33:58,257 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 19:33:58,257 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 19:33:58,287 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 19:33:58,288 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 19:33:58,289 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 19:33:58,289 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 19:33:58,289 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 19:33:58,290 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 19:33:58,290 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 19:33:58,290 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 19:33:58,290 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 19:33:58,290 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 19:33:58,291 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 19:33:58,291 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 19:33:58,292 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 19:33:58,292 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 19:33:58,292 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 19:33:58,293 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 19:33:58,293 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 19:33:58,293 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 19:33:58,293 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 19:33:58,293 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 19:33:58,293 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 19:33:58,295 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 19:33:58,295 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 19:33:58,295 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 19:33:58,296 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 19:33:58,296 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 19:33:58,296 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 19:33:58,296 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 19:33:58,296 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 19:33:58,297 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 19:33:58,297 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 19:33:58,297 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 19:33:58,297 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 19:33:58,297 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 19:33:58,368 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 19:33:58,385 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 19:33:58,390 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 19:33:58,392 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 19:33:58,393 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 19:33:58,393 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label51_true-unreach-call_false-termination.c [2018-10-24 19:33:58,458 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8c996d71d/e704c2d64972433c89ee85490e6a4c25/FLAG0d573950d [2018-10-24 19:33:59,050 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 19:33:59,055 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label51_true-unreach-call_false-termination.c [2018-10-24 19:33:59,081 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8c996d71d/e704c2d64972433c89ee85490e6a4c25/FLAG0d573950d [2018-10-24 19:33:59,109 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8c996d71d/e704c2d64972433c89ee85490e6a4c25 [2018-10-24 19:33:59,121 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 19:33:59,123 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 19:33:59,124 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 19:33:59,124 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 19:33:59,128 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 19:33:59,129 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:33:59" (1/1) ... [2018-10-24 19:33:59,132 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31eb09b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:33:59, skipping insertion in model container [2018-10-24 19:33:59,132 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:33:59" (1/1) ... [2018-10-24 19:33:59,142 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 19:33:59,216 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 19:33:59,681 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 19:33:59,693 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 19:33:59,811 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 19:33:59,832 INFO L193 MainTranslator]: Completed translation [2018-10-24 19:33:59,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:33:59 WrapperNode [2018-10-24 19:33:59,833 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 19:33:59,834 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 19:33:59,834 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 19:33:59,834 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 19:33:59,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:33:59" (1/1) ... [2018-10-24 19:33:59,861 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:33:59" (1/1) ... [2018-10-24 19:34:00,025 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 19:34:00,026 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 19:34:00,026 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 19:34:00,026 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 19:34:00,037 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:33:59" (1/1) ... [2018-10-24 19:34:00,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:33:59" (1/1) ... [2018-10-24 19:34:00,051 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:33:59" (1/1) ... [2018-10-24 19:34:00,051 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:33:59" (1/1) ... [2018-10-24 19:34:00,092 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:33:59" (1/1) ... [2018-10-24 19:34:00,118 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:33:59" (1/1) ... [2018-10-24 19:34:00,129 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:33:59" (1/1) ... [2018-10-24 19:34:00,146 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 19:34:00,147 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 19:34:00,147 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 19:34:00,147 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 19:34:00,148 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:33:59" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 19:34:00,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 19:34:00,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 19:34:00,257 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 19:34:00,257 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 19:34:00,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 19:34:00,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 19:34:00,258 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 19:34:00,258 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 19:34:03,622 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 19:34:03,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:34:03 BoogieIcfgContainer [2018-10-24 19:34:03,623 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 19:34:03,625 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 19:34:03,625 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 19:34:03,630 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 19:34:03,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:33:59" (1/3) ... [2018-10-24 19:34:03,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25bc24ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:34:03, skipping insertion in model container [2018-10-24 19:34:03,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:33:59" (2/3) ... [2018-10-24 19:34:03,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25bc24ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:34:03, skipping insertion in model container [2018-10-24 19:34:03,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:34:03" (3/3) ... [2018-10-24 19:34:03,635 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label51_true-unreach-call_false-termination.c [2018-10-24 19:34:03,646 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 19:34:03,656 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 19:34:03,677 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 19:34:03,719 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 19:34:03,720 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 19:34:03,720 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 19:34:03,720 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 19:34:03,720 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 19:34:03,721 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 19:34:03,721 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 19:34:03,721 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 19:34:03,749 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states. [2018-10-24 19:34:03,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-10-24 19:34:03,764 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:34:03,766 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:34:03,769 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:34:03,777 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:34:03,778 INFO L82 PathProgramCache]: Analyzing trace with hash 1195562327, now seen corresponding path program 1 times [2018-10-24 19:34:03,781 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:34:03,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:34:03,838 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:34:03,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:34:03,838 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:34:03,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:34:04,390 WARN L179 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 19:34:04,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:34:04,612 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:34:04,612 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 19:34:04,612 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:34:04,619 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 19:34:04,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 19:34:04,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 19:34:04,639 INFO L87 Difference]: Start difference. First operand 237 states. Second operand 3 states. [2018-10-24 19:34:06,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:34:06,381 INFO L93 Difference]: Finished difference Result 621 states and 1059 transitions. [2018-10-24 19:34:06,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 19:34:06,383 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 117 [2018-10-24 19:34:06,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:34:06,404 INFO L225 Difference]: With dead ends: 621 [2018-10-24 19:34:06,404 INFO L226 Difference]: Without dead ends: 382 [2018-10-24 19:34:06,412 INFO L605 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 [2018-10-24 19:34:06,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2018-10-24 19:34:06,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 382. [2018-10-24 19:34:06,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2018-10-24 19:34:06,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 608 transitions. [2018-10-24 19:34:06,493 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 608 transitions. Word has length 117 [2018-10-24 19:34:06,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:34:06,495 INFO L481 AbstractCegarLoop]: Abstraction has 382 states and 608 transitions. [2018-10-24 19:34:06,495 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 19:34:06,495 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 608 transitions. [2018-10-24 19:34:06,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-10-24 19:34:06,503 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:34:06,503 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:34:06,504 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:34:06,504 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:34:06,504 INFO L82 PathProgramCache]: Analyzing trace with hash -324277142, now seen corresponding path program 1 times [2018-10-24 19:34:06,504 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:34:06,506 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:34:06,506 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:34:06,506 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:34:06,506 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:34:06,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:34:06,947 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:34:06,947 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:34:06,948 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 19:34:06,948 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:34:06,950 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 19:34:06,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 19:34:06,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 19:34:06,953 INFO L87 Difference]: Start difference. First operand 382 states and 608 transitions. Second operand 5 states. [2018-10-24 19:34:08,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:34:08,551 INFO L93 Difference]: Finished difference Result 903 states and 1497 transitions. [2018-10-24 19:34:08,552 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 19:34:08,553 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 126 [2018-10-24 19:34:08,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:34:08,557 INFO L225 Difference]: With dead ends: 903 [2018-10-24 19:34:08,557 INFO L226 Difference]: Without dead ends: 381 [2018-10-24 19:34:08,563 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 19:34:08,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2018-10-24 19:34:08,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2018-10-24 19:34:08,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2018-10-24 19:34:08,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 602 transitions. [2018-10-24 19:34:08,588 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 602 transitions. Word has length 126 [2018-10-24 19:34:08,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:34:08,589 INFO L481 AbstractCegarLoop]: Abstraction has 381 states and 602 transitions. [2018-10-24 19:34:08,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 19:34:08,589 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 602 transitions. [2018-10-24 19:34:08,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-10-24 19:34:08,594 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:34:08,594 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 19:34:08,595 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:34:08,595 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:34:08,595 INFO L82 PathProgramCache]: Analyzing trace with hash 1188045302, now seen corresponding path program 1 times [2018-10-24 19:34:08,595 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:34:08,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:34:08,597 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:34:08,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:34:08,597 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:34:08,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:34:09,272 WARN L179 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 22 [2018-10-24 19:34:09,406 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:34:09,407 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:34:09,407 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 19:34:09,407 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:34:09,408 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 19:34:09,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 19:34:09,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 19:34:09,409 INFO L87 Difference]: Start difference. First operand 381 states and 602 transitions. Second operand 5 states. [2018-10-24 19:34:11,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:34:11,172 INFO L93 Difference]: Finished difference Result 901 states and 1482 transitions. [2018-10-24 19:34:11,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 19:34:11,175 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 132 [2018-10-24 19:34:11,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:34:11,178 INFO L225 Difference]: With dead ends: 901 [2018-10-24 19:34:11,178 INFO L226 Difference]: Without dead ends: 380 [2018-10-24 19:34:11,181 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 19:34:11,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2018-10-24 19:34:11,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 380. [2018-10-24 19:34:11,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2018-10-24 19:34:11,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 594 transitions. [2018-10-24 19:34:11,207 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 594 transitions. Word has length 132 [2018-10-24 19:34:11,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:34:11,208 INFO L481 AbstractCegarLoop]: Abstraction has 380 states and 594 transitions. [2018-10-24 19:34:11,208 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 19:34:11,208 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 594 transitions. [2018-10-24 19:34:11,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-10-24 19:34:11,213 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:34:11,213 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:34:11,214 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:34:11,214 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:34:11,214 INFO L82 PathProgramCache]: Analyzing trace with hash -34077619, now seen corresponding path program 1 times [2018-10-24 19:34:11,214 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:34:11,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:34:11,216 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:34:11,216 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:34:11,216 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:34:11,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:34:11,395 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 19:34:11,444 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:34:11,444 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:34:11,445 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 19:34:11,445 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:34:11,445 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 19:34:11,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 19:34:11,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 19:34:11,446 INFO L87 Difference]: Start difference. First operand 380 states and 594 transitions. Second operand 6 states. [2018-10-24 19:34:14,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:34:14,559 INFO L93 Difference]: Finished difference Result 1193 states and 1942 transitions. [2018-10-24 19:34:14,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 19:34:14,559 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 140 [2018-10-24 19:34:14,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:34:14,565 INFO L225 Difference]: With dead ends: 1193 [2018-10-24 19:34:14,565 INFO L226 Difference]: Without dead ends: 819 [2018-10-24 19:34:14,567 INFO L605 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 [2018-10-24 19:34:14,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2018-10-24 19:34:14,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 807. [2018-10-24 19:34:14,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 807 states. [2018-10-24 19:34:14,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1208 transitions. [2018-10-24 19:34:14,602 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1208 transitions. Word has length 140 [2018-10-24 19:34:14,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:34:14,602 INFO L481 AbstractCegarLoop]: Abstraction has 807 states and 1208 transitions. [2018-10-24 19:34:14,602 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 19:34:14,602 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1208 transitions. [2018-10-24 19:34:14,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-10-24 19:34:14,606 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:34:14,606 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:34:14,606 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:34:14,607 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:34:14,607 INFO L82 PathProgramCache]: Analyzing trace with hash -1593443119, now seen corresponding path program 1 times [2018-10-24 19:34:14,607 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:34:14,608 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:34:14,608 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:34:14,608 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:34:14,608 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:34:14,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:34:14,835 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:34:14,835 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:34:14,835 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 19:34:14,835 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:34:14,836 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 19:34:14,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 19:34:14,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 19:34:14,837 INFO L87 Difference]: Start difference. First operand 807 states and 1208 transitions. Second operand 5 states. [2018-10-24 19:34:15,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:34:15,958 INFO L93 Difference]: Finished difference Result 1753 states and 2669 transitions. [2018-10-24 19:34:15,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 19:34:15,959 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 142 [2018-10-24 19:34:15,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:34:15,966 INFO L225 Difference]: With dead ends: 1753 [2018-10-24 19:34:15,966 INFO L226 Difference]: Without dead ends: 804 [2018-10-24 19:34:15,970 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 19:34:15,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2018-10-24 19:34:16,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 804. [2018-10-24 19:34:16,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 804 states. [2018-10-24 19:34:16,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1190 transitions. [2018-10-24 19:34:16,008 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1190 transitions. Word has length 142 [2018-10-24 19:34:16,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:34:16,009 INFO L481 AbstractCegarLoop]: Abstraction has 804 states and 1190 transitions. [2018-10-24 19:34:16,009 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 19:34:16,009 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1190 transitions. [2018-10-24 19:34:16,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-10-24 19:34:16,012 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:34:16,013 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:34:16,013 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:34:16,013 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:34:16,013 INFO L82 PathProgramCache]: Analyzing trace with hash 890086741, now seen corresponding path program 1 times [2018-10-24 19:34:16,013 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:34:16,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:34:16,015 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:34:16,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:34:16,015 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:34:16,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:34:16,365 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:34:16,365 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:34:16,366 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 19:34:16,366 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:34:16,366 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 19:34:16,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 19:34:16,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 19:34:16,367 INFO L87 Difference]: Start difference. First operand 804 states and 1190 transitions. Second operand 5 states. [2018-10-24 19:34:17,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:34:17,685 INFO L93 Difference]: Finished difference Result 1747 states and 2630 transitions. [2018-10-24 19:34:17,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 19:34:17,689 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 144 [2018-10-24 19:34:17,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:34:17,694 INFO L225 Difference]: With dead ends: 1747 [2018-10-24 19:34:17,694 INFO L226 Difference]: Without dead ends: 801 [2018-10-24 19:34:17,698 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 19:34:17,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2018-10-24 19:34:17,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 801. [2018-10-24 19:34:17,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 801 states. [2018-10-24 19:34:17,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 801 states to 801 states and 1169 transitions. [2018-10-24 19:34:17,726 INFO L78 Accepts]: Start accepts. Automaton has 801 states and 1169 transitions. Word has length 144 [2018-10-24 19:34:17,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:34:17,727 INFO L481 AbstractCegarLoop]: Abstraction has 801 states and 1169 transitions. [2018-10-24 19:34:17,727 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 19:34:17,727 INFO L276 IsEmpty]: Start isEmpty. Operand 801 states and 1169 transitions. [2018-10-24 19:34:17,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-10-24 19:34:17,731 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:34:17,731 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:34:17,732 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:34:17,732 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:34:17,732 INFO L82 PathProgramCache]: Analyzing trace with hash 207226461, now seen corresponding path program 1 times [2018-10-24 19:34:17,732 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:34:17,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:34:17,734 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:34:17,734 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:34:17,734 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:34:17,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:34:17,972 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 19:34:18,005 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:34:18,006 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:34:18,006 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 19:34:18,006 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:34:18,006 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 19:34:18,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 19:34:18,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 19:34:18,007 INFO L87 Difference]: Start difference. First operand 801 states and 1169 transitions. Second operand 6 states. [2018-10-24 19:34:19,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:34:19,855 INFO L93 Difference]: Finished difference Result 2381 states and 3621 transitions. [2018-10-24 19:34:19,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 19:34:19,864 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 148 [2018-10-24 19:34:19,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:34:19,880 INFO L225 Difference]: With dead ends: 2381 [2018-10-24 19:34:19,880 INFO L226 Difference]: Without dead ends: 1586 [2018-10-24 19:34:19,885 INFO L605 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 [2018-10-24 19:34:19,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1586 states. [2018-10-24 19:34:19,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1586 to 1558. [2018-10-24 19:34:19,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1558 states. [2018-10-24 19:34:19,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 2225 transitions. [2018-10-24 19:34:19,940 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 2225 transitions. Word has length 148 [2018-10-24 19:34:19,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:34:19,941 INFO L481 AbstractCegarLoop]: Abstraction has 1558 states and 2225 transitions. [2018-10-24 19:34:19,941 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 19:34:19,941 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 2225 transitions. [2018-10-24 19:34:19,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2018-10-24 19:34:19,947 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:34:19,948 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, 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] [2018-10-24 19:34:19,948 INFO L424 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:34:19,948 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:34:19,948 INFO L82 PathProgramCache]: Analyzing trace with hash 1224274575, now seen corresponding path program 1 times [2018-10-24 19:34:19,949 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:34:19,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:34:19,950 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:34:19,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:34:19,950 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:34:19,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:34:20,101 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 89 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:34:20,102 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 19:34:20,102 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 19:34:20,103 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 184 with the following transitions: [2018-10-24 19:34:20,105 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [107], [108], [112], [116], [120], [123], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [607], [609], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-10-24 19:34:20,186 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 19:34:20,186 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 19:34:51,932 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 19:34:51,934 INFO L272 AbstractInterpreter]: Visited 121 different actions 236 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 38 variables. [2018-10-24 19:34:51,946 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:34:51,946 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 19:34:59,558 INFO L232 lantSequenceWeakener]: Weakened 98 states. On average, predicates are now at 81.6% of their original sizes. [2018-10-24 19:34:59,559 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 19:35:51,065 INFO L413 sIntCurrentIteration]: We have 182 unified AI predicates [2018-10-24 19:35:51,066 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 19:35:51,067 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 19:35:51,067 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [26] imperfect sequences [6] total 30 [2018-10-24 19:35:51,067 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:35:51,068 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-10-24 19:35:51,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-10-24 19:35:51,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=501, Unknown=0, NotChecked=0, Total=650 [2018-10-24 19:35:51,069 INFO L87 Difference]: Start difference. First operand 1558 states and 2225 transitions. Second operand 26 states. Received shutdown request... [2018-10-24 19:38:03,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-10-24 19:38:03,926 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 19:38:03,935 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 19:38:03,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 07:38:03 BoogieIcfgContainer [2018-10-24 19:38:03,935 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 19:38:03,936 INFO L168 Benchmark]: Toolchain (without parser) took 244814.13 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 3.5 GB in the end (delta: -2.1 GB). Peak memory consumption was 609.1 MB. Max. memory is 7.1 GB. [2018-10-24 19:38:03,938 INFO L168 Benchmark]: CDTParser took 0.18 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. [2018-10-24 19:38:03,938 INFO L168 Benchmark]: CACSL2BoogieTranslator took 709.58 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-24 19:38:03,939 INFO L168 Benchmark]: Boogie Procedure Inliner took 192.01 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 745.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -821.0 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. [2018-10-24 19:38:03,940 INFO L168 Benchmark]: Boogie Preprocessor took 120.31 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. [2018-10-24 19:38:03,941 INFO L168 Benchmark]: RCFGBuilder took 3476.90 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 104.6 MB). Peak memory consumption was 104.6 MB. Max. memory is 7.1 GB. [2018-10-24 19:38:03,942 INFO L168 Benchmark]: TraceAbstraction took 240310.36 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 535.4 MB. Max. memory is 7.1 GB. [2018-10-24 19:38:03,950 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 709.58 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 192.01 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 745.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -821.0 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.31 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3476.90 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 104.6 MB). Peak memory consumption was 104.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 240310.36 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 535.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 502]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 502). Cancelled while BasicCegarLoop was constructing difference of abstraction (1558states) and FLOYD_HOARE automaton (currently 28 states, 26 states before enhancement),while ReachableStatesComputation was computing reachable states (597 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 237 locations, 1 error locations. TIMEOUT Result, 240.2s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 145.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 908 SDtfs, 4647 SDslu, 734 SDs, 0 SdLazy, 5753 SolverSat, 1130 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 57.9s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 249 GetRequests, 171 SyntacticMatches, 15 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 498 ImplicationChecksByTransitivity, 63.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1558occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 31.8s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9949119159645479 AbsIntWeakeningRatio, 0.1813186813186813 AbsIntAvgWeakeningVarsNumRemoved, 199.62087912087912 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 40 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 1132 NumberOfCodeBlocks, 1132 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1124 ConstructedInterpolants, 0 QuantifiedInterpolants, 1143444 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 7 PerfectInterpolantSequences, 201/203 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown