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/Problem10_label24_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-26 23:28:39,280 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 23:28:39,282 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 23:28:39,298 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 23:28:39,298 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 23:28:39,299 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 23:28:39,301 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 23:28:39,304 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 23:28:39,306 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 23:28:39,314 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 23:28:39,315 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 23:28:39,315 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 23:28:39,319 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 23:28:39,320 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 23:28:39,325 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 23:28:39,326 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 23:28:39,328 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 23:28:39,332 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 23:28:39,334 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 23:28:39,338 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 23:28:39,340 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 23:28:39,342 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 23:28:39,347 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 23:28:39,347 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 23:28:39,347 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 23:28:39,350 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 23:28:39,351 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 23:28:39,354 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 23:28:39,355 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 23:28:39,356 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 23:28:39,356 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 23:28:39,358 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 23:28:39,359 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 23:28:39,359 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 23:28:39,360 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 23:28:39,361 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 23:28:39,361 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 [2018-10-26 23:28:39,387 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 23:28:39,387 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 23:28:39,388 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 23:28:39,388 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 23:28:39,389 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 23:28:39,389 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 23:28:39,389 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-26 23:28:39,390 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 23:28:39,390 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-26 23:28:39,390 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-26 23:28:39,390 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-26 23:28:39,390 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 23:28:39,391 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 23:28:39,391 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 23:28:39,393 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 23:28:39,393 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 23:28:39,393 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 23:28:39,393 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 23:28:39,394 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 23:28:39,394 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 23:28:39,394 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 23:28:39,394 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 23:28:39,395 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 23:28:39,395 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 23:28:39,395 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 23:28:39,395 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 23:28:39,395 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 23:28:39,396 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 23:28:39,396 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-26 23:28:39,396 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 23:28:39,396 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 23:28:39,396 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 23:28:39,397 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-26 23:28:39,397 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-26 23:28:39,440 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 23:28:39,456 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 23:28:39,461 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 23:28:39,462 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 23:28:39,463 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 23:28:39,463 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label24_false-unreach-call.c [2018-10-26 23:28:39,525 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d4814635a/699e75e0da4445c8ab2d3b7c31362b9c/FLAG3757111d6 [2018-10-26 23:28:40,061 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 23:28:40,062 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label24_false-unreach-call.c [2018-10-26 23:28:40,074 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d4814635a/699e75e0da4445c8ab2d3b7c31362b9c/FLAG3757111d6 [2018-10-26 23:28:40,092 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d4814635a/699e75e0da4445c8ab2d3b7c31362b9c [2018-10-26 23:28:40,104 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 23:28:40,105 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 23:28:40,106 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 23:28:40,106 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 23:28:40,110 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 23:28:40,111 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:28:40" (1/1) ... [2018-10-26 23:28:40,115 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69989dae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:28:40, skipping insertion in model container [2018-10-26 23:28:40,115 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:28:40" (1/1) ... [2018-10-26 23:28:40,126 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 23:28:40,200 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 23:28:40,692 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:28:40,698 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 23:28:40,810 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:28:40,833 INFO L193 MainTranslator]: Completed translation [2018-10-26 23:28:40,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:28:40 WrapperNode [2018-10-26 23:28:40,833 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 23:28:40,834 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 23:28:40,834 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 23:28:40,835 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 23:28:40,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:28:40" (1/1) ... [2018-10-26 23:28:40,872 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:28:40" (1/1) ... [2018-10-26 23:28:41,041 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 23:28:41,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 23:28:41,045 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 23:28:41,045 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 23:28:41,060 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:28:40" (1/1) ... [2018-10-26 23:28:41,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:28:40" (1/1) ... [2018-10-26 23:28:41,072 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:28:40" (1/1) ... [2018-10-26 23:28:41,072 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:28:40" (1/1) ... [2018-10-26 23:28:41,107 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:28:40" (1/1) ... [2018-10-26 23:28:41,127 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:28:40" (1/1) ... [2018-10-26 23:28:41,143 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:28:40" (1/1) ... [2018-10-26 23:28:41,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 23:28:41,151 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 23:28:41,151 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 23:28:41,152 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 23:28:41,152 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:28:40" (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 [2018-10-26 23:28:41,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 23:28:41,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 23:28:41,218 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-26 23:28:41,218 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-26 23:28:41,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 23:28:41,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 23:28:41,219 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 23:28:41,219 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 23:28:44,715 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 23:28:44,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:28:44 BoogieIcfgContainer [2018-10-26 23:28:44,716 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 23:28:44,717 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 23:28:44,717 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 23:28:44,720 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 23:28:44,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 11:28:40" (1/3) ... [2018-10-26 23:28:44,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73f40c64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:28:44, skipping insertion in model container [2018-10-26 23:28:44,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:28:40" (2/3) ... [2018-10-26 23:28:44,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73f40c64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:28:44, skipping insertion in model container [2018-10-26 23:28:44,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:28:44" (3/3) ... [2018-10-26 23:28:44,724 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label24_false-unreach-call.c [2018-10-26 23:28:44,734 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 23:28:44,742 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 23:28:44,761 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 23:28:44,801 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 23:28:44,801 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 23:28:44,801 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 23:28:44,802 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 23:28:44,802 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 23:28:44,804 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 23:28:44,804 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 23:28:44,804 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 23:28:44,833 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-10-26 23:28:44,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-26 23:28:44,841 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:28:44,842 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] [2018-10-26 23:28:44,844 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:28:44,849 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:28:44,850 INFO L82 PathProgramCache]: Analyzing trace with hash 823320841, now seen corresponding path program 1 times [2018-10-26 23:28:44,852 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:28:44,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:28:44,910 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:28:44,911 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:28:44,911 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:28:44,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:28:45,310 WARN L179 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-26 23:28:45,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:28:45,422 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:28:45,423 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 23:28:45,423 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 23:28:45,429 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 23:28:45,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 23:28:45,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 23:28:45,450 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 3 states. [2018-10-26 23:28:47,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:28:47,854 INFO L93 Difference]: Finished difference Result 574 states and 992 transitions. [2018-10-26 23:28:47,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 23:28:47,865 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2018-10-26 23:28:47,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:28:47,896 INFO L225 Difference]: With dead ends: 574 [2018-10-26 23:28:47,897 INFO L226 Difference]: Without dead ends: 356 [2018-10-26 23:28:47,907 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 23:28:47,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-10-26 23:28:47,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2018-10-26 23:28:47,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-10-26 23:28:47,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 592 transitions. [2018-10-26 23:28:47,988 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 592 transitions. Word has length 21 [2018-10-26 23:28:47,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:28:47,989 INFO L481 AbstractCegarLoop]: Abstraction has 356 states and 592 transitions. [2018-10-26 23:28:47,989 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 23:28:47,989 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 592 transitions. [2018-10-26 23:28:47,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-10-26 23:28:47,994 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:28:47,995 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:28:47,995 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:28:47,996 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:28:47,996 INFO L82 PathProgramCache]: Analyzing trace with hash 1112402304, now seen corresponding path program 1 times [2018-10-26 23:28:47,996 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:28:47,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:28:47,998 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:28:47,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:28:47,998 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:28:48,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:28:48,443 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:28:48,444 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:28:48,444 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-26 23:28:48,444 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 23:28:48,446 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 23:28:48,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 23:28:48,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-26 23:28:48,448 INFO L87 Difference]: Start difference. First operand 356 states and 592 transitions. Second operand 6 states. [2018-10-26 23:28:51,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:28:51,116 INFO L93 Difference]: Finished difference Result 1002 states and 1689 transitions. [2018-10-26 23:28:51,116 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 23:28:51,116 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 91 [2018-10-26 23:28:51,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:28:51,122 INFO L225 Difference]: With dead ends: 1002 [2018-10-26 23:28:51,123 INFO L226 Difference]: Without dead ends: 652 [2018-10-26 23:28:51,126 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 [2018-10-26 23:28:51,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2018-10-26 23:28:51,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 640. [2018-10-26 23:28:51,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 640 states. [2018-10-26 23:28:51,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 960 transitions. [2018-10-26 23:28:51,169 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 960 transitions. Word has length 91 [2018-10-26 23:28:51,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:28:51,169 INFO L481 AbstractCegarLoop]: Abstraction has 640 states and 960 transitions. [2018-10-26 23:28:51,170 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 23:28:51,170 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 960 transitions. [2018-10-26 23:28:51,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-10-26 23:28:51,172 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:28:51,172 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-26 23:28:51,173 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:28:51,173 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:28:51,173 INFO L82 PathProgramCache]: Analyzing trace with hash -2093526668, now seen corresponding path program 1 times [2018-10-26 23:28:51,173 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:28:51,174 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:28:51,175 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:28:51,175 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:28:51,175 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:28:51,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:28:51,321 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:28:51,322 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:28:51,322 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 23:28:51,322 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 23:28:51,323 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 23:28:51,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 23:28:51,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 23:28:51,323 INFO L87 Difference]: Start difference. First operand 640 states and 960 transitions. Second operand 4 states. [2018-10-26 23:28:54,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:28:54,678 INFO L93 Difference]: Finished difference Result 2128 states and 3336 transitions. [2018-10-26 23:28:54,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 23:28:54,679 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 101 [2018-10-26 23:28:54,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:28:54,688 INFO L225 Difference]: With dead ends: 2128 [2018-10-26 23:28:54,689 INFO L226 Difference]: Without dead ends: 904 [2018-10-26 23:28:54,699 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 23:28:54,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 904 states. [2018-10-26 23:28:54,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 904 to 904. [2018-10-26 23:28:54,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 904 states. [2018-10-26 23:28:54,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 1277 transitions. [2018-10-26 23:28:54,752 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 1277 transitions. Word has length 101 [2018-10-26 23:28:54,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:28:54,753 INFO L481 AbstractCegarLoop]: Abstraction has 904 states and 1277 transitions. [2018-10-26 23:28:54,753 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 23:28:54,753 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 1277 transitions. [2018-10-26 23:28:54,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-10-26 23:28:54,766 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:28:54,767 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-26 23:28:54,767 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:28:54,767 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:28:54,768 INFO L82 PathProgramCache]: Analyzing trace with hash 1920891619, now seen corresponding path program 1 times [2018-10-26 23:28:54,768 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:28:54,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:28:54,769 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:28:54,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:28:54,769 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:28:54,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:28:55,114 WARN L179 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-26 23:28:55,517 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:28:55,517 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:28:55,517 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-26 23:28:55,517 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 23:28:55,519 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 23:28:55,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 23:28:55,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-26 23:28:55,522 INFO L87 Difference]: Start difference. First operand 904 states and 1277 transitions. Second operand 6 states. [2018-10-26 23:28:57,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:28:57,165 INFO L93 Difference]: Finished difference Result 2127 states and 3078 transitions. [2018-10-26 23:28:57,167 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 23:28:57,167 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 144 [2018-10-26 23:28:57,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:28:57,179 INFO L225 Difference]: With dead ends: 2127 [2018-10-26 23:28:57,179 INFO L226 Difference]: Without dead ends: 1229 [2018-10-26 23:28:57,183 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-26 23:28:57,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2018-10-26 23:28:57,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1208. [2018-10-26 23:28:57,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1208 states. [2018-10-26 23:28:57,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1208 states to 1208 states and 1646 transitions. [2018-10-26 23:28:57,234 INFO L78 Accepts]: Start accepts. Automaton has 1208 states and 1646 transitions. Word has length 144 [2018-10-26 23:28:57,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:28:57,235 INFO L481 AbstractCegarLoop]: Abstraction has 1208 states and 1646 transitions. [2018-10-26 23:28:57,235 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 23:28:57,235 INFO L276 IsEmpty]: Start isEmpty. Operand 1208 states and 1646 transitions. [2018-10-26 23:28:57,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-10-26 23:28:57,242 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:28:57,242 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:28:57,242 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:28:57,242 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:28:57,243 INFO L82 PathProgramCache]: Analyzing trace with hash -1935153608, now seen corresponding path program 1 times [2018-10-26 23:28:57,243 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:28:57,244 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:28:57,244 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:28:57,244 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:28:57,244 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:28:57,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:28:57,801 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 28 proven. 78 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-26 23:28:57,802 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 23:28:57,802 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-26 23:28:57,803 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 193 with the following transitions: [2018-10-26 23:28:57,805 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [69], [71], [74], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [546], [547], [551], [555], [559], [563], [566], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-26 23:28:57,918 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-26 23:28:57,918 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-26 23:29:01,063 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-26 23:29:01,064 INFO L272 AbstractInterpreter]: Visited 93 different actions 93 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-26 23:29:01,076 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:29:01,076 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-26 23:29:04,059 INFO L227 lantSequenceWeakener]: Weakened 171 states. On average, predicates are now at 73.1% of their original sizes. [2018-10-26 23:29:04,060 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-26 23:29:09,505 INFO L415 sIntCurrentIteration]: We unified 191 AI predicates to 191 [2018-10-26 23:29:09,505 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-26 23:29:09,506 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 23:29:09,506 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [5] total 13 [2018-10-26 23:29:09,507 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 23:29:09,507 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-26 23:29:09,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-26 23:29:09,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-10-26 23:29:09,508 INFO L87 Difference]: Start difference. First operand 1208 states and 1646 transitions. Second operand 10 states. [2018-10-26 23:29:21,570 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-26 23:29:55,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:29:55,216 INFO L93 Difference]: Finished difference Result 2559 states and 3488 transitions. [2018-10-26 23:29:55,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-26 23:29:55,216 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 192 [2018-10-26 23:29:55,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:29:55,225 INFO L225 Difference]: With dead ends: 2559 [2018-10-26 23:29:55,226 INFO L226 Difference]: Without dead ends: 1357 [2018-10-26 23:29:55,231 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 195 GetRequests, 154 SyntacticMatches, 29 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-10-26 23:29:55,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1357 states. [2018-10-26 23:29:55,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1357 to 1352. [2018-10-26 23:29:55,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1352 states. [2018-10-26 23:29:55,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 1796 transitions. [2018-10-26 23:29:55,318 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 1796 transitions. Word has length 192 [2018-10-26 23:29:55,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:29:55,318 INFO L481 AbstractCegarLoop]: Abstraction has 1352 states and 1796 transitions. [2018-10-26 23:29:55,318 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-26 23:29:55,318 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 1796 transitions. [2018-10-26 23:29:55,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2018-10-26 23:29:55,327 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:29:55,327 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-26 23:29:55,328 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:29:55,328 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:29:55,328 INFO L82 PathProgramCache]: Analyzing trace with hash 2141226182, now seen corresponding path program 1 times [2018-10-26 23:29:55,328 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:29:55,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:29:55,330 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:29:55,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:29:55,330 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:29:55,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:29:55,836 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-10-26 23:29:56,027 WARN L179 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-26 23:29:56,246 WARN L179 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 7 [2018-10-26 23:29:56,680 WARN L179 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 20 [2018-10-26 23:29:57,250 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 116 proven. 82 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-10-26 23:29:57,250 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 23:29:57,250 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-26 23:29:57,251 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 264 with the following transitions: [2018-10-26 23:29:57,251 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [69], [71], [74], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [546], [547], [551], [555], [559], [563], [566], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-26 23:29:57,257 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-26 23:29:57,257 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-26 23:29:58,503 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-26 23:30:10,062 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-26 23:30:10,062 INFO L272 AbstractInterpreter]: Visited 97 different actions 552 times. Merged at 5 different actions 25 times. Widened at 1 different actions 1 times. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-26 23:30:10,074 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:30:10,074 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-26 23:30:12,804 INFO L227 lantSequenceWeakener]: Weakened 171 states. On average, predicates are now at 73.1% of their original sizes. [2018-10-26 23:30:12,805 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-26 23:30:28,571 INFO L415 sIntCurrentIteration]: We unified 262 AI predicates to 262 [2018-10-26 23:30:28,571 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-26 23:30:28,571 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 23:30:28,571 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [14] total 29 [2018-10-26 23:30:28,572 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 23:30:28,572 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-10-26 23:30:28,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-10-26 23:30:28,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2018-10-26 23:30:28,573 INFO L87 Difference]: Start difference. First operand 1352 states and 1796 transitions. Second operand 17 states. [2018-10-26 23:32:24,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:32:24,797 INFO L93 Difference]: Finished difference Result 3015 states and 4056 transitions. [2018-10-26 23:32:24,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-10-26 23:32:24,798 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 263 [2018-10-26 23:32:24,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:32:24,808 INFO L225 Difference]: With dead ends: 3015 [2018-10-26 23:32:24,808 INFO L226 Difference]: Without dead ends: 1813 [2018-10-26 23:32:24,813 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 270 GetRequests, 218 SyntacticMatches, 29 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 17.4s TimeCoverageRelationStatistics Valid=134, Invalid=466, Unknown=0, NotChecked=0, Total=600 [2018-10-26 23:32:24,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1813 states. [2018-10-26 23:32:24,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1813 to 1726. [2018-10-26 23:32:24,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1726 states. [2018-10-26 23:32:24,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1726 states to 1726 states and 2209 transitions. [2018-10-26 23:32:24,925 INFO L78 Accepts]: Start accepts. Automaton has 1726 states and 2209 transitions. Word has length 263 [2018-10-26 23:32:24,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:32:24,926 INFO L481 AbstractCegarLoop]: Abstraction has 1726 states and 2209 transitions. [2018-10-26 23:32:24,926 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-10-26 23:32:24,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1726 states and 2209 transitions. [2018-10-26 23:32:24,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2018-10-26 23:32:24,934 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:32:24,934 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-26 23:32:24,935 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:32:24,935 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:32:24,935 INFO L82 PathProgramCache]: Analyzing trace with hash -573304603, now seen corresponding path program 1 times [2018-10-26 23:32:24,935 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:32:24,936 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:32:24,936 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:32:24,936 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:32:24,936 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:32:24,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:32:25,550 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 133 proven. 158 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-26 23:32:25,551 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 23:32:25,551 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-26 23:32:25,551 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 309 with the following transitions: [2018-10-26 23:32:25,552 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [69], [71], [74], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [546], [547], [551], [555], [559], [563], [566], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-26 23:32:25,557 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-26 23:32:25,558 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-26 23:32:28,245 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-26 23:32:32,191 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-10-26 23:32:32,192 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-10-26 23:32:32,193 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-26 23:32:32,193 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 23:32:32,193 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 23:32:32,202 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:32:32,202 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-26 23:32:32,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:32:32,321 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:32:32,332 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-26 23:32:32,533 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 23:32:32,533 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-26 23:32:32,538 WARN L205 ceAbstractionStarter]: Timeout [2018-10-26 23:32:32,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 11:32:32 BoogieIcfgContainer [2018-10-26 23:32:32,539 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 23:32:32,540 INFO L168 Benchmark]: Toolchain (without parser) took 232435.39 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 3.2 GB in the end (delta: -1.8 GB). Peak memory consumption was 908.4 MB. Max. memory is 7.1 GB. [2018-10-26 23:32:32,541 INFO L168 Benchmark]: CDTParser took 0.19 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. [2018-10-26 23:32:32,541 INFO L168 Benchmark]: CACSL2BoogieTranslator took 727.48 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. [2018-10-26 23:32:32,542 INFO L168 Benchmark]: Boogie Procedure Inliner took 207.14 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 740.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -813.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 7.1 GB. [2018-10-26 23:32:32,543 INFO L168 Benchmark]: Boogie Preprocessor took 109.35 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. [2018-10-26 23:32:32,544 INFO L168 Benchmark]: RCFGBuilder took 3564.68 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: 132.2 MB). Peak memory consumption was 132.2 MB. Max. memory is 7.1 GB. [2018-10-26 23:32:32,544 INFO L168 Benchmark]: TraceAbstraction took 227822.13 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 3.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 817.4 MB. Max. memory is 7.1 GB. [2018-10-26 23:32:32,549 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 727.48 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 207.14 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 740.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -813.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 109.35 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 3564.68 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: 132.2 MB). Peak memory consumption was 132.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 227822.13 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 3.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 817.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 46]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 46). Cancelled while BasicCegarLoop was analyzing trace of length 309 with TraceHistMax 4,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 12 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 227.7s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 172.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 659 SDtfs, 4461 SDslu, 423 SDs, 0 SdLazy, 4667 SolverSat, 1003 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 94.1s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 495 GetRequests, 381 SyntacticMatches, 62 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 470 ImplicationChecksByTransitivity, 24.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1726occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 22.7s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.9946052084333107 AbsIntWeakeningRatio, 0.1280353200883002 AbsIntAvgWeakeningVarsNumRemoved, 114.77704194260485 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 6 MinimizatonAttempts, 125 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 812 NumberOfCodeBlocks, 812 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 806 ConstructedInterpolants, 0 QuantifiedInterpolants, 1103193 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 260/420 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown