java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label15_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 11:39:38,645 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 11:39:38,647 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 11:39:38,667 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 11:39:38,668 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 11:39:38,669 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 11:39:38,670 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 11:39:38,672 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 11:39:38,674 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 11:39:38,675 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 11:39:38,676 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 11:39:38,676 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 11:39:38,677 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 11:39:38,678 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 11:39:38,679 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 11:39:38,680 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 11:39:38,681 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 11:39:38,683 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 11:39:38,685 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 11:39:38,686 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 11:39:38,687 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 11:39:38,689 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 11:39:38,691 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-18 11:39:38,692 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-18 11:39:38,692 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-18 11:39:38,693 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-18 11:39:38,694 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-18 11:39:38,695 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-18 11:39:38,696 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-18 11:39:38,697 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-18 11:39:38,697 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-18 11:39:38,698 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-18 11:39:38,698 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-18 11:39:38,699 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-18 11:39:38,700 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-18 11:39:38,700 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-18 11:39:38,701 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-09-18 11:39:38,729 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 11:39:38,729 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 11:39:38,730 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 11:39:38,730 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 11:39:38,731 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 11:39:38,731 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 11:39:38,731 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 11:39:38,731 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-18 11:39:38,731 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 11:39:38,732 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 11:39:38,732 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 11:39:38,732 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-18 11:39:38,733 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 11:39:38,733 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 11:39:38,733 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 11:39:38,733 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 11:39:38,733 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 11:39:38,734 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 11:39:38,734 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 11:39:38,734 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 11:39:38,734 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 11:39:38,734 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 11:39:38,735 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 11:39:38,735 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 11:39:38,735 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 11:39:38,735 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 11:39:38,736 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 11:39:38,736 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 11:39:38,736 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-18 11:39:38,736 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 11:39:38,736 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 11:39:38,737 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 11:39:38,737 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 11:39:38,737 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 11:39:38,781 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 11:39:38,794 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 11:39:38,799 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 11:39:38,801 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 11:39:38,802 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 11:39:38,803 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label15_true-unreach-call.c [2018-09-18 11:39:39,154 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37b58241f/6166af483fd24316b8486736a7c9044f/FLAG641d72b06 [2018-09-18 11:39:39,622 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 11:39:39,623 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label15_true-unreach-call.c [2018-09-18 11:39:39,669 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37b58241f/6166af483fd24316b8486736a7c9044f/FLAG641d72b06 [2018-09-18 11:39:39,693 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37b58241f/6166af483fd24316b8486736a7c9044f [2018-09-18 11:39:39,707 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 11:39:39,710 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 11:39:39,714 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 11:39:39,715 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 11:39:39,722 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 11:39:39,723 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:39:39" (1/1) ... [2018-09-18 11:39:39,727 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45717c04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:39:39, skipping insertion in model container [2018-09-18 11:39:39,728 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:39:39" (1/1) ... [2018-09-18 11:39:39,741 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 11:39:41,404 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:39:41,428 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 11:39:42,128 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:39:42,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:39:42 WrapperNode [2018-09-18 11:39:42,480 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 11:39:42,481 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 11:39:42,481 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 11:39:42,482 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 11:39:42,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:39:42" (1/1) ... [2018-09-18 11:39:42,645 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:39:42" (1/1) ... [2018-09-18 11:39:42,826 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 11:39:42,827 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 11:39:42,827 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 11:39:42,827 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 11:39:43,596 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:39:42" (1/1) ... [2018-09-18 11:39:43,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:39:42" (1/1) ... [2018-09-18 11:39:43,639 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:39:42" (1/1) ... [2018-09-18 11:39:43,639 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:39:42" (1/1) ... [2018-09-18 11:39:43,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:39:42" (1/1) ... [2018-09-18 11:39:43,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:39:42" (1/1) ... [2018-09-18 11:39:43,970 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:39:42" (1/1) ... [2018-09-18 11:39:44,050 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 11:39:44,051 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 11:39:44,051 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 11:39:44,051 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 11:39:44,052 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:39:42" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 11:39:44,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 11:39:44,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 11:39:44,132 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-18 11:39:44,133 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-18 11:39:44,133 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-18 11:39:44,133 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-18 11:39:44,133 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-18 11:39:44,133 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-18 11:39:44,134 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-18 11:39:44,134 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-18 11:39:44,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 11:39:44,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 11:39:44,134 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 11:39:44,134 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 11:39:55,450 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 11:39:55,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:39:55 BoogieIcfgContainer [2018-09-18 11:39:55,451 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 11:39:55,451 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-18 11:39:55,452 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-18 11:39:55,455 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-18 11:39:55,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 11:39:39" (1/3) ... [2018-09-18 11:39:55,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15c4302f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 11:39:55, skipping insertion in model container [2018-09-18 11:39:55,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:39:42" (2/3) ... [2018-09-18 11:39:55,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15c4302f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 11:39:55, skipping insertion in model container [2018-09-18 11:39:55,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:39:55" (3/3) ... [2018-09-18 11:39:55,458 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label15_true-unreach-call.c [2018-09-18 11:39:55,466 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-18 11:39:55,476 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-18 11:39:55,563 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-18 11:39:55,564 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-18 11:39:55,564 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-18 11:39:55,564 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-18 11:39:55,564 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-18 11:39:55,564 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-18 11:39:55,564 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-18 11:39:55,564 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-18 11:39:55,565 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-18 11:39:55,615 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-09-18 11:39:55,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-09-18 11:39:55,628 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:39:55,630 INFO L376 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] [2018-09-18 11:39:55,631 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:39:55,637 INFO L82 PathProgramCache]: Analyzing trace with hash 801605187, now seen corresponding path program 1 times [2018-09-18 11:39:55,640 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:39:55,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:39:55,691 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:39:55,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:39:55,692 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:39:55,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:39:56,112 WARN L178 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:39:56,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:39:56,249 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:39:56,249 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-18 11:39:56,250 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:39:56,256 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:39:56,270 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:39:56,271 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 11:39:56,273 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-09-18 11:40:05,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:40:05,433 INFO L93 Difference]: Finished difference Result 3097 states and 5707 transitions. [2018-09-18 11:40:05,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:40:05,435 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2018-09-18 11:40:05,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:40:05,472 INFO L225 Difference]: With dead ends: 3097 [2018-09-18 11:40:05,472 INFO L226 Difference]: Without dead ends: 1975 [2018-09-18 11:40:05,483 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 11:40:05,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2018-09-18 11:40:05,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1974. [2018-09-18 11:40:05,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1974 states. [2018-09-18 11:40:05,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1974 states to 1974 states and 3284 transitions. [2018-09-18 11:40:05,641 INFO L78 Accepts]: Start accepts. Automaton has 1974 states and 3284 transitions. Word has length 43 [2018-09-18 11:40:05,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:40:05,642 INFO L480 AbstractCegarLoop]: Abstraction has 1974 states and 3284 transitions. [2018-09-18 11:40:05,642 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:40:05,642 INFO L276 IsEmpty]: Start isEmpty. Operand 1974 states and 3284 transitions. [2018-09-18 11:40:05,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-09-18 11:40:05,650 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:40:05,650 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:40:05,650 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:40:05,651 INFO L82 PathProgramCache]: Analyzing trace with hash 2094905010, now seen corresponding path program 1 times [2018-09-18 11:40:05,651 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:40:05,652 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:40:05,652 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:40:05,653 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:40:05,653 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:40:05,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:40:06,108 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:40:06,112 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:40:06,112 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-18 11:40:06,112 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:40:06,117 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:40:06,117 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:40:06,117 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-18 11:40:06,118 INFO L87 Difference]: Start difference. First operand 1974 states and 3284 transitions. Second operand 5 states. [2018-09-18 11:40:24,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:40:24,960 INFO L93 Difference]: Finished difference Result 5736 states and 9691 transitions. [2018-09-18 11:40:24,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 11:40:24,962 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 119 [2018-09-18 11:40:24,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:40:24,995 INFO L225 Difference]: With dead ends: 5736 [2018-09-18 11:40:24,996 INFO L226 Difference]: Without dead ends: 3768 [2018-09-18 11:40:25,004 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-18 11:40:25,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3768 states. [2018-09-18 11:40:25,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3768 to 3686. [2018-09-18 11:40:25,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3686 states. [2018-09-18 11:40:25,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3686 states to 3686 states and 5660 transitions. [2018-09-18 11:40:25,240 INFO L78 Accepts]: Start accepts. Automaton has 3686 states and 5660 transitions. Word has length 119 [2018-09-18 11:40:25,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:40:25,241 INFO L480 AbstractCegarLoop]: Abstraction has 3686 states and 5660 transitions. [2018-09-18 11:40:25,241 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:40:25,241 INFO L276 IsEmpty]: Start isEmpty. Operand 3686 states and 5660 transitions. [2018-09-18 11:40:25,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-09-18 11:40:25,251 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:40:25,251 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:40:25,256 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:40:25,256 INFO L82 PathProgramCache]: Analyzing trace with hash 695171086, now seen corresponding path program 1 times [2018-09-18 11:40:25,256 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:40:25,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:40:25,258 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:40:25,258 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:40:25,258 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:40:25,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:40:25,508 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:40:25,509 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:40:25,509 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-18 11:40:25,509 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:40:25,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:40:25,510 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:40:25,510 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-18 11:40:25,511 INFO L87 Difference]: Start difference. First operand 3686 states and 5660 transitions. Second operand 5 states. [2018-09-18 11:40:50,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:40:50,986 INFO L93 Difference]: Finished difference Result 13666 states and 21761 transitions. [2018-09-18 11:40:50,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 11:40:50,990 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 133 [2018-09-18 11:40:50,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:40:51,044 INFO L225 Difference]: With dead ends: 13666 [2018-09-18 11:40:51,044 INFO L226 Difference]: Without dead ends: 9986 [2018-09-18 11:40:51,069 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-18 11:40:51,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9986 states. [2018-09-18 11:40:51,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9986 to 9796. [2018-09-18 11:40:51,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9796 states. [2018-09-18 11:40:51,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9796 states to 9796 states and 14501 transitions. [2018-09-18 11:40:51,333 INFO L78 Accepts]: Start accepts. Automaton has 9796 states and 14501 transitions. Word has length 133 [2018-09-18 11:40:51,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:40:51,334 INFO L480 AbstractCegarLoop]: Abstraction has 9796 states and 14501 transitions. [2018-09-18 11:40:51,334 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:40:51,335 INFO L276 IsEmpty]: Start isEmpty. Operand 9796 states and 14501 transitions. [2018-09-18 11:40:51,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-09-18 11:40:51,339 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:40:51,339 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:40:51,340 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:40:51,340 INFO L82 PathProgramCache]: Analyzing trace with hash -1489581070, now seen corresponding path program 1 times [2018-09-18 11:40:51,340 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:40:51,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:40:51,341 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:40:51,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:40:51,342 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:40:51,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:40:51,627 WARN L178 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:40:51,817 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:40:51,817 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:40:51,817 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 11:40:51,817 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:40:51,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 11:40:51,818 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 11:40:51,818 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 11:40:51,818 INFO L87 Difference]: Start difference. First operand 9796 states and 14501 transitions. Second operand 6 states. [2018-09-18 11:41:03,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:41:03,838 INFO L93 Difference]: Finished difference Result 34193 states and 53806 transitions. [2018-09-18 11:41:03,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:41:03,843 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 151 [2018-09-18 11:41:03,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:41:03,950 INFO L225 Difference]: With dead ends: 34193 [2018-09-18 11:41:03,950 INFO L226 Difference]: Without dead ends: 24403 [2018-09-18 11:41:04,021 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-18 11:41:04,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24403 states. [2018-09-18 11:41:04,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24403 to 24170. [2018-09-18 11:41:04,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24170 states. [2018-09-18 11:41:04,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24170 states to 24170 states and 34072 transitions. [2018-09-18 11:41:04,812 INFO L78 Accepts]: Start accepts. Automaton has 24170 states and 34072 transitions. Word has length 151 [2018-09-18 11:41:04,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:41:04,812 INFO L480 AbstractCegarLoop]: Abstraction has 24170 states and 34072 transitions. [2018-09-18 11:41:04,812 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 11:41:04,813 INFO L276 IsEmpty]: Start isEmpty. Operand 24170 states and 34072 transitions. [2018-09-18 11:41:04,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2018-09-18 11:41:04,817 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:41:04,817 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:41:04,818 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:41:04,818 INFO L82 PathProgramCache]: Analyzing trace with hash -1334716798, now seen corresponding path program 1 times [2018-09-18 11:41:04,818 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:41:04,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:41:04,819 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:41:04,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:41:04,819 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:41:04,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:41:05,034 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:41:05,035 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:41:05,035 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 11:41:05,035 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:41:05,036 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 11:41:05,036 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 11:41:05,036 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:41:05,036 INFO L87 Difference]: Start difference. First operand 24170 states and 34072 transitions. Second operand 4 states. [2018-09-18 11:41:15,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:41:15,207 INFO L93 Difference]: Finished difference Result 66651 states and 99959 transitions. [2018-09-18 11:41:15,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 11:41:15,208 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2018-09-18 11:41:15,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:41:15,393 INFO L225 Difference]: With dead ends: 66651 [2018-09-18 11:41:15,393 INFO L226 Difference]: Without dead ends: 42487 [2018-09-18 11:41:15,469 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:41:15,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42487 states. [2018-09-18 11:41:16,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42487 to 42434. [2018-09-18 11:41:16,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42434 states. [2018-09-18 11:41:16,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42434 states to 42434 states and 60055 transitions. [2018-09-18 11:41:16,707 INFO L78 Accepts]: Start accepts. Automaton has 42434 states and 60055 transitions. Word has length 159 [2018-09-18 11:41:16,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:41:16,707 INFO L480 AbstractCegarLoop]: Abstraction has 42434 states and 60055 transitions. [2018-09-18 11:41:16,708 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-18 11:41:16,708 INFO L276 IsEmpty]: Start isEmpty. Operand 42434 states and 60055 transitions. [2018-09-18 11:41:16,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2018-09-18 11:41:16,726 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:41:16,726 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 11:41:16,726 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:41:16,727 INFO L82 PathProgramCache]: Analyzing trace with hash -1702866948, now seen corresponding path program 1 times [2018-09-18 11:41:16,727 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:41:16,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:41:16,728 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:41:16,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:41:16,728 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:41:16,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:41:17,063 WARN L178 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:41:17,511 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 72 proven. 72 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:41:17,512 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:41:17,512 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-09-18 11:41:17,531 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:41:17,532 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:41:17,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:41:17,655 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:41:18,166 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2018-09-18 11:41:18,167 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:41:18,599 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 72 proven. 72 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:41:18,636 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 11:41:18,636 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 12 [2018-09-18 11:41:18,637 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:41:18,638 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:41:18,638 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:41:18,638 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2018-09-18 11:41:18,639 INFO L87 Difference]: Start difference. First operand 42434 states and 60055 transitions. Second operand 5 states. [2018-09-18 11:41:36,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:41:36,557 INFO L93 Difference]: Finished difference Result 131566 states and 197990 transitions. [2018-09-18 11:41:36,558 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-18 11:41:36,558 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 239 [2018-09-18 11:41:36,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:41:37,002 INFO L225 Difference]: With dead ends: 131566 [2018-09-18 11:41:37,003 INFO L226 Difference]: Without dead ends: 89138 [2018-09-18 11:41:37,242 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 485 GetRequests, 473 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2018-09-18 11:41:37,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89138 states. [2018-09-18 11:41:39,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89138 to 88997. [2018-09-18 11:41:39,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88997 states. [2018-09-18 11:41:39,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88997 states to 88997 states and 124430 transitions. [2018-09-18 11:41:39,706 INFO L78 Accepts]: Start accepts. Automaton has 88997 states and 124430 transitions. Word has length 239 [2018-09-18 11:41:39,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:41:39,707 INFO L480 AbstractCegarLoop]: Abstraction has 88997 states and 124430 transitions. [2018-09-18 11:41:39,707 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:41:39,707 INFO L276 IsEmpty]: Start isEmpty. Operand 88997 states and 124430 transitions. [2018-09-18 11:41:39,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2018-09-18 11:41:39,746 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:41:39,746 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:41:39,747 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:41:39,747 INFO L82 PathProgramCache]: Analyzing trace with hash -2088829904, now seen corresponding path program 1 times [2018-09-18 11:41:39,747 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:41:39,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:41:39,748 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:41:39,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:41:39,749 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:41:39,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:41:40,140 WARN L178 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:41:40,693 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 110 proven. 18 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2018-09-18 11:41:40,693 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:41:40,693 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:41:40,709 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:41:40,709 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:41:40,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:41:40,839 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:41:41,236 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 263 proven. 2 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-09-18 11:41:41,236 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:41:41,453 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 263 proven. 2 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-09-18 11:41:41,475 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:41:41,475 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:41:41,493 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:41:41,493 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:41:41,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:41:41,729 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:41:42,064 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 263 proven. 2 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-09-18 11:41:42,065 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:41:42,463 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 263 proven. 2 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-09-18 11:41:42,467 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:41:42,467 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 16 [2018-09-18 11:41:42,467 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:41:42,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 11:41:42,469 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 11:41:42,469 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2018-09-18 11:41:42,470 INFO L87 Difference]: Start difference. First operand 88997 states and 124430 transitions. Second operand 9 states. [2018-09-18 11:42:00,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:42:00,070 INFO L93 Difference]: Finished difference Result 232617 states and 361398 transitions. [2018-09-18 11:42:00,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-18 11:42:00,070 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 322 [2018-09-18 11:42:00,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:42:00,644 INFO L225 Difference]: With dead ends: 232617 [2018-09-18 11:42:00,644 INFO L226 Difference]: Without dead ends: 143626 [2018-09-18 11:42:00,811 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1311 GetRequests, 1286 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=110, Invalid=396, Unknown=0, NotChecked=0, Total=506 [2018-09-18 11:42:00,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143626 states. [2018-09-18 11:42:02,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143626 to 141837. [2018-09-18 11:42:02,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141837 states. [2018-09-18 11:42:03,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141837 states to 141837 states and 193618 transitions. [2018-09-18 11:42:03,315 INFO L78 Accepts]: Start accepts. Automaton has 141837 states and 193618 transitions. Word has length 322 [2018-09-18 11:42:03,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:42:03,316 INFO L480 AbstractCegarLoop]: Abstraction has 141837 states and 193618 transitions. [2018-09-18 11:42:03,316 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-18 11:42:03,317 INFO L276 IsEmpty]: Start isEmpty. Operand 141837 states and 193618 transitions. [2018-09-18 11:42:03,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2018-09-18 11:42:03,356 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:42:03,356 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:42:03,357 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:42:03,357 INFO L82 PathProgramCache]: Analyzing trace with hash -555689402, now seen corresponding path program 1 times [2018-09-18 11:42:03,357 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:42:03,358 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:42:03,358 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:42:03,358 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:42:03,359 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:42:03,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:42:04,808 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 263 proven. 2 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-09-18 11:42:04,808 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:42:04,808 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:42:04,817 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:42:04,817 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:42:04,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:42:04,914 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:42:05,082 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 263 proven. 2 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-09-18 11:42:05,082 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:42:05,284 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 263 proven. 2 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-09-18 11:42:05,306 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:42:05,306 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:42:05,324 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:42:05,324 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:42:05,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:42:05,566 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:42:05,873 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 263 proven. 2 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-09-18 11:42:05,874 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:42:06,663 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 263 proven. 2 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-09-18 11:42:06,665 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:42:06,666 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-09-18 11:42:06,666 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:42:06,667 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 11:42:06,668 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 11:42:06,668 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-09-18 11:42:06,668 INFO L87 Difference]: Start difference. First operand 141837 states and 193618 transitions. Second operand 9 states. [2018-09-18 11:42:29,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:42:29,370 INFO L93 Difference]: Finished difference Result 335906 states and 543806 transitions. [2018-09-18 11:42:29,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-18 11:42:29,370 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 331 [2018-09-18 11:42:29,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:42:30,491 INFO L225 Difference]: With dead ends: 335906 [2018-09-18 11:42:30,491 INFO L226 Difference]: Without dead ends: 194075 [2018-09-18 11:42:31,015 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1346 GetRequests, 1322 SyntacticMatches, 5 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=140, Invalid=280, Unknown=0, NotChecked=0, Total=420 [2018-09-18 11:42:31,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194075 states. [2018-09-18 11:42:36,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194075 to 191739. [2018-09-18 11:42:36,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191739 states. [2018-09-18 11:42:36,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191739 states to 191739 states and 280585 transitions. [2018-09-18 11:42:36,879 INFO L78 Accepts]: Start accepts. Automaton has 191739 states and 280585 transitions. Word has length 331 [2018-09-18 11:42:36,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:42:36,880 INFO L480 AbstractCegarLoop]: Abstraction has 191739 states and 280585 transitions. [2018-09-18 11:42:36,880 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-18 11:42:36,880 INFO L276 IsEmpty]: Start isEmpty. Operand 191739 states and 280585 transitions. [2018-09-18 11:42:36,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2018-09-18 11:42:36,928 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:42:36,928 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:42:36,929 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:42:36,929 INFO L82 PathProgramCache]: Analyzing trace with hash -1453920552, now seen corresponding path program 1 times [2018-09-18 11:42:36,929 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:42:36,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:42:36,930 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:42:36,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:42:36,930 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:42:36,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:42:37,210 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 205 proven. 95 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-09-18 11:42:37,210 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:42:37,211 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:42:37,219 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:42:37,219 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:42:37,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:42:37,325 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:42:37,431 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 353 proven. 2 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2018-09-18 11:42:37,431 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:42:37,577 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 205 proven. 95 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-09-18 11:42:37,600 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:42:37,601 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:42:37,619 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:42:37,619 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:42:37,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:42:37,850 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:42:44,004 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 353 proven. 2 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2018-09-18 11:42:44,004 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:42:44,178 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 205 proven. 95 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-09-18 11:42:44,181 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:42:44,182 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 11 [2018-09-18 11:42:44,182 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:42:44,183 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 11:42:44,183 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 11:42:44,183 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-09-18 11:42:44,184 INFO L87 Difference]: Start difference. First operand 191739 states and 280585 transitions. Second operand 9 states. [2018-09-18 11:43:07,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:43:07,866 INFO L93 Difference]: Finished difference Result 402961 states and 686531 transitions. [2018-09-18 11:43:07,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-18 11:43:07,867 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 339 [2018-09-18 11:43:07,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:43:08,762 INFO L225 Difference]: With dead ends: 402961 [2018-09-18 11:43:08,762 INFO L226 Difference]: Without dead ends: 211233 [2018-09-18 11:43:09,351 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1386 GetRequests, 1358 SyntacticMatches, 6 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=172, Invalid=380, Unknown=0, NotChecked=0, Total=552 [2018-09-18 11:43:09,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211233 states. [2018-09-18 11:43:14,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211233 to 204920. [2018-09-18 11:43:14,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204920 states. [2018-09-18 11:43:14,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204920 states to 204920 states and 274142 transitions. [2018-09-18 11:43:14,713 INFO L78 Accepts]: Start accepts. Automaton has 204920 states and 274142 transitions. Word has length 339 [2018-09-18 11:43:14,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:43:14,714 INFO L480 AbstractCegarLoop]: Abstraction has 204920 states and 274142 transitions. [2018-09-18 11:43:14,714 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-18 11:43:14,714 INFO L276 IsEmpty]: Start isEmpty. Operand 204920 states and 274142 transitions. [2018-09-18 11:43:14,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2018-09-18 11:43:14,746 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:43:14,746 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2018-09-18 11:43:14,746 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:43:14,747 INFO L82 PathProgramCache]: Analyzing trace with hash 622962802, now seen corresponding path program 1 times [2018-09-18 11:43:14,747 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:43:14,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:43:14,747 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:43:14,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:43:14,748 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:43:14,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:43:15,086 WARN L178 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:43:15,708 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 106 proven. 201 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2018-09-18 11:43:15,708 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:43:15,708 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:43:15,718 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:43:15,718 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:43:15,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:43:15,828 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:43:16,346 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 268 proven. 2 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2018-09-18 11:43:16,347 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:43:17,782 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 118 proven. 278 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:43:17,803 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:43:17,804 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:43:17,820 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:43:17,820 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:43:18,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:43:18,058 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:43:18,126 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2018-09-18 11:43:18,126 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:43:18,320 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2018-09-18 11:43:18,322 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 3 imperfect interpolant sequences. [2018-09-18 11:43:18,323 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8, 7, 8] total 18 [2018-09-18 11:43:18,323 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:43:18,324 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:43:18,324 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:43:18,324 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2018-09-18 11:43:18,325 INFO L87 Difference]: Start difference. First operand 204920 states and 274142 transitions. Second operand 3 states. Received shutdown request... [2018-09-18 11:43:22,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:43:22,872 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-18 11:43:22,878 WARN L206 ceAbstractionStarter]: Timeout [2018-09-18 11:43:22,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 11:43:22 BoogieIcfgContainer [2018-09-18 11:43:22,879 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-18 11:43:22,880 INFO L168 Benchmark]: Toolchain (without parser) took 223172.34 ms. Allocated memory was 1.5 GB in the beginning and 5.0 GB in the end (delta: 3.4 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -455.6 MB). Peak memory consumption was 3.0 GB. Max. memory is 7.1 GB. [2018-09-18 11:43:22,881 INFO L168 Benchmark]: CDTParser took 0.23 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. [2018-09-18 11:43:22,881 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2766.25 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 338.2 MB). Peak memory consumption was 338.2 MB. Max. memory is 7.1 GB. [2018-09-18 11:43:22,882 INFO L168 Benchmark]: Boogie Procedure Inliner took 345.27 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 42.5 MB). Peak memory consumption was 42.5 MB. Max. memory is 7.1 GB. [2018-09-18 11:43:22,883 INFO L168 Benchmark]: Boogie Preprocessor took 1224.08 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 984.6 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. [2018-09-18 11:43:22,884 INFO L168 Benchmark]: RCFGBuilder took 11399.59 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 165.7 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: -7.1 MB). Peak memory consumption was 744.8 MB. Max. memory is 7.1 GB. [2018-09-18 11:43:22,885 INFO L168 Benchmark]: TraceAbstraction took 207427.46 ms. Allocated memory was 2.7 GB in the beginning and 5.0 GB in the end (delta: 2.3 GB). Free memory was 2.3 GB in the beginning and 1.9 GB in the end (delta: 468.6 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. [2018-09-18 11:43:22,890 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 2766.25 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 338.2 MB). Peak memory consumption was 338.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 345.27 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 42.5 MB). Peak memory consumption was 42.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1224.08 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 984.6 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11399.59 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 165.7 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: -7.1 MB). Peak memory consumption was 744.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 207427.46 ms. Allocated memory was 2.7 GB in the beginning and 5.0 GB in the end (delta: 2.3 GB). Free memory was 2.3 GB in the beginning and 1.9 GB in the end (delta: 468.6 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 120). Cancelled while BasicCegarLoop was constructing difference of abstraction (204920states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement), while ReachableStatesComputation was computing reachable states (134107 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 207.3s OverallTime, 10 OverallIterations, 4 TraceHistogramMax, 167.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5818 SDtfs, 38299 SDslu, 6160 SDs, 0 SdLazy, 72680 SolverSat, 16231 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 126.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5960 GetRequests, 5825 SyntacticMatches, 24 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 383 ImplicationChecksByTransitivity, 6.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=204920occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 18.8s AutomataMinimizationTime, 9 MinimizatonAttempts, 11138 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 16.6s InterpolantComputationTime, 5097 NumberOfCodeBlocks, 5097 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 7984 ConstructedInterpolants, 111 QuantifiedInterpolants, 6533337 SizeOfPredicates, 6 NumberOfNonLiveVariables, 5258 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 28 InterpolantComputations, 8 PerfectInterpolantSequences, 7146/8096 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label15_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-18_11-43-22-904.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label15_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-18_11-43-22-904.csv Completed graceful shutdown