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/Problem19_label23_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-14 18:21:29,749 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-14 18:21:29,752 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-14 18:21:29,773 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-14 18:21:29,774 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-14 18:21:29,776 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-14 18:21:29,777 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-14 18:21:29,780 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-14 18:21:29,782 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-14 18:21:29,783 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-14 18:21:29,784 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-14 18:21:29,784 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-14 18:21:29,785 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-14 18:21:29,786 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-14 18:21:29,787 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-14 18:21:29,788 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-14 18:21:29,789 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-14 18:21:29,791 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-14 18:21:29,793 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-14 18:21:29,795 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-14 18:21:29,796 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-14 18:21:29,798 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-14 18:21:29,800 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-14 18:21:29,801 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-14 18:21:29,801 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-14 18:21:29,802 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-14 18:21:29,803 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-14 18:21:29,804 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-14 18:21:29,805 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-14 18:21:29,806 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-14 18:21:29,806 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-14 18:21:29,807 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-14 18:21:29,807 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-14 18:21:29,808 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-14 18:21:29,809 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-14 18:21:29,810 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-14 18:21:29,810 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 [2018-09-14 18:21:29,832 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-14 18:21:29,833 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-14 18:21:29,836 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-14 18:21:29,836 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-14 18:21:29,836 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-14 18:21:29,837 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-14 18:21:29,837 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-14 18:21:29,837 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-14 18:21:29,837 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-14 18:21:29,838 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-14 18:21:29,838 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-14 18:21:29,840 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-14 18:21:29,841 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-14 18:21:29,841 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-14 18:21:29,841 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-14 18:21:29,843 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-14 18:21:29,843 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-14 18:21:29,843 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-14 18:21:29,843 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-14 18:21:29,844 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-14 18:21:29,844 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-14 18:21:29,844 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-14 18:21:29,845 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-14 18:21:29,845 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-14 18:21:29,845 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-14 18:21:29,845 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-14 18:21:29,845 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-14 18:21:29,846 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-14 18:21:29,846 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-14 18:21:29,846 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-14 18:21:29,846 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-14 18:21:29,846 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-14 18:21:29,847 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-14 18:21:29,916 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-14 18:21:29,932 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-14 18:21:29,938 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-14 18:21:29,940 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-14 18:21:29,940 INFO L276 PluginConnector]: CDTParser initialized [2018-09-14 18:21:29,941 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label23_true-unreach-call.c [2018-09-14 18:21:30,292 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c377a343f/1a7ba7fafcb74c18b852e3bb6f0bb941/FLAG7f64931ea [2018-09-14 18:21:30,905 INFO L277 CDTParser]: Found 1 translation units. [2018-09-14 18:21:30,906 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label23_true-unreach-call.c [2018-09-14 18:21:30,959 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c377a343f/1a7ba7fafcb74c18b852e3bb6f0bb941/FLAG7f64931ea [2018-09-14 18:21:30,983 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c377a343f/1a7ba7fafcb74c18b852e3bb6f0bb941 [2018-09-14 18:21:30,997 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-14 18:21:31,001 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-14 18:21:31,002 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-14 18:21:31,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-14 18:21:31,011 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-14 18:21:31,012 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 06:21:30" (1/1) ... [2018-09-14 18:21:31,016 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d7e6e75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:21:31, skipping insertion in model container [2018-09-14 18:21:31,016 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 06:21:30" (1/1) ... [2018-09-14 18:21:31,032 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-14 18:21:33,008 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 18:21:33,031 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-14 18:21:34,107 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 18:21:34,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:21:34 WrapperNode [2018-09-14 18:21:34,682 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-14 18:21:34,683 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-14 18:21:34,683 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-14 18:21:34,684 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-14 18:21:34,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:21:34" (1/1) ... [2018-09-14 18:21:34,852 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:21:34" (1/1) ... [2018-09-14 18:21:35,033 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-14 18:21:35,034 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-14 18:21:35,034 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-14 18:21:35,034 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-14 18:21:36,169 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:21:34" (1/1) ... [2018-09-14 18:21:36,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:21:34" (1/1) ... [2018-09-14 18:21:36,298 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:21:34" (1/1) ... [2018-09-14 18:21:36,299 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:21:34" (1/1) ... [2018-09-14 18:21:36,578 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:21:34" (1/1) ... [2018-09-14 18:21:36,623 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:21:34" (1/1) ... [2018-09-14 18:21:36,735 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:21:34" (1/1) ... [2018-09-14 18:21:36,858 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-14 18:21:36,859 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-14 18:21:36,859 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-14 18:21:36,859 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-14 18:21:36,860 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:21:34" (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 [2018-09-14 18:21:36,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-14 18:21:36,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-14 18:21:36,930 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-09-14 18:21:36,930 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-09-14 18:21:36,931 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-09-14 18:21:36,931 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-09-14 18:21:36,931 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-14 18:21:36,931 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-14 18:21:36,931 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-14 18:21:36,931 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-14 18:21:36,932 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-14 18:21:36,932 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-14 18:21:36,932 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-14 18:21:36,932 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-14 18:21:36,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-14 18:21:36,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-14 18:21:36,933 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-14 18:21:36,933 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-14 18:21:54,513 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-14 18:21:54,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 06:21:54 BoogieIcfgContainer [2018-09-14 18:21:54,514 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-14 18:21:54,515 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-14 18:21:54,515 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-14 18:21:54,518 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-14 18:21:54,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.09 06:21:30" (1/3) ... [2018-09-14 18:21:54,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e3705bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 06:21:54, skipping insertion in model container [2018-09-14 18:21:54,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:21:34" (2/3) ... [2018-09-14 18:21:54,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e3705bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 06:21:54, skipping insertion in model container [2018-09-14 18:21:54,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 06:21:54" (3/3) ... [2018-09-14 18:21:54,522 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label23_true-unreach-call.c [2018-09-14 18:21:54,532 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-14 18:21:54,543 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-14 18:21:54,612 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-14 18:21:54,613 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-14 18:21:54,614 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-14 18:21:54,614 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-14 18:21:54,614 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-14 18:21:54,614 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-14 18:21:54,614 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-14 18:21:54,614 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-14 18:21:54,614 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-14 18:21:54,665 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-09-14 18:21:54,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-09-14 18:21:54,676 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:21:54,677 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 18:21:54,678 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:21:54,687 INFO L82 PathProgramCache]: Analyzing trace with hash -11956822, now seen corresponding path program 1 times [2018-09-14 18:21:54,690 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:21:54,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:21:54,743 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:21:54,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:21:54,743 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:21:54,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:21:55,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 18:21:55,263 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 18:21:55,264 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-14 18:21:55,264 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:21:55,270 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 18:21:55,286 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 18:21:55,286 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 18:21:55,289 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-09-14 18:22:09,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 18:22:09,392 INFO L93 Difference]: Finished difference Result 4999 states and 9420 transitions. [2018-09-14 18:22:09,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 18:22:09,395 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2018-09-14 18:22:09,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 18:22:09,438 INFO L225 Difference]: With dead ends: 4999 [2018-09-14 18:22:09,439 INFO L226 Difference]: Without dead ends: 3219 [2018-09-14 18:22:09,454 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 18:22:09,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3219 states. [2018-09-14 18:22:09,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3219 to 3215. [2018-09-14 18:22:09,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3215 states. [2018-09-14 18:22:09,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3215 states to 3215 states and 5845 transitions. [2018-09-14 18:22:09,724 INFO L78 Accepts]: Start accepts. Automaton has 3215 states and 5845 transitions. Word has length 59 [2018-09-14 18:22:09,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 18:22:09,725 INFO L480 AbstractCegarLoop]: Abstraction has 3215 states and 5845 transitions. [2018-09-14 18:22:09,725 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 18:22:09,727 INFO L276 IsEmpty]: Start isEmpty. Operand 3215 states and 5845 transitions. [2018-09-14 18:22:09,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-09-14 18:22:09,739 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:22:09,740 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, 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] [2018-09-14 18:22:09,740 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:22:09,740 INFO L82 PathProgramCache]: Analyzing trace with hash -1729747758, now seen corresponding path program 1 times [2018-09-14 18:22:09,741 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:22:09,745 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:22:09,745 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:22:09,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:22:09,746 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:22:09,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:22:10,140 WARN L178 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 18:22:10,521 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 18:22:10,522 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 18:22:10,522 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 18:22:10,522 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:22:10,525 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 18:22:10,525 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 18:22:10,525 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-14 18:22:10,526 INFO L87 Difference]: Start difference. First operand 3215 states and 5845 transitions. Second operand 6 states. [2018-09-14 18:22:37,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 18:22:37,673 INFO L93 Difference]: Finished difference Result 9343 states and 16923 transitions. [2018-09-14 18:22:37,678 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 18:22:37,679 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 131 [2018-09-14 18:22:37,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 18:22:37,724 INFO L225 Difference]: With dead ends: 9343 [2018-09-14 18:22:37,725 INFO L226 Difference]: Without dead ends: 6134 [2018-09-14 18:22:37,737 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-14 18:22:37,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6134 states. [2018-09-14 18:22:37,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6134 to 6093. [2018-09-14 18:22:37,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6093 states. [2018-09-14 18:22:37,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6093 states to 6093 states and 9626 transitions. [2018-09-14 18:22:37,932 INFO L78 Accepts]: Start accepts. Automaton has 6093 states and 9626 transitions. Word has length 131 [2018-09-14 18:22:37,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 18:22:37,933 INFO L480 AbstractCegarLoop]: Abstraction has 6093 states and 9626 transitions. [2018-09-14 18:22:37,933 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 18:22:37,933 INFO L276 IsEmpty]: Start isEmpty. Operand 6093 states and 9626 transitions. [2018-09-14 18:22:37,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-09-14 18:22:37,948 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:22:37,948 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, 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] [2018-09-14 18:22:37,948 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:22:37,949 INFO L82 PathProgramCache]: Analyzing trace with hash -1793375852, now seen corresponding path program 1 times [2018-09-14 18:22:37,949 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:22:37,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:22:37,950 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:22:37,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:22:37,951 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:22:38,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:22:38,489 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 18:22:38,490 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 18:22:38,490 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 18:22:38,490 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:22:38,491 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 18:22:38,491 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 18:22:38,491 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-14 18:22:38,492 INFO L87 Difference]: Start difference. First operand 6093 states and 9626 transitions. Second operand 6 states. [2018-09-14 18:23:21,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 18:23:21,103 INFO L93 Difference]: Finished difference Result 24260 states and 39730 transitions. [2018-09-14 18:23:21,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-14 18:23:21,105 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 149 [2018-09-14 18:23:21,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 18:23:21,199 INFO L225 Difference]: With dead ends: 24260 [2018-09-14 18:23:21,200 INFO L226 Difference]: Without dead ends: 18173 [2018-09-14 18:23:21,238 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-09-14 18:23:21,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18173 states. [2018-09-14 18:23:21,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18173 to 18097. [2018-09-14 18:23:21,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18097 states. [2018-09-14 18:23:21,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18097 states to 18097 states and 25643 transitions. [2018-09-14 18:23:21,719 INFO L78 Accepts]: Start accepts. Automaton has 18097 states and 25643 transitions. Word has length 149 [2018-09-14 18:23:21,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 18:23:21,720 INFO L480 AbstractCegarLoop]: Abstraction has 18097 states and 25643 transitions. [2018-09-14 18:23:21,720 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 18:23:21,720 INFO L276 IsEmpty]: Start isEmpty. Operand 18097 states and 25643 transitions. [2018-09-14 18:23:21,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2018-09-14 18:23:21,728 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:23:21,728 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 18:23:21,728 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:23:21,729 INFO L82 PathProgramCache]: Analyzing trace with hash -808835625, now seen corresponding path program 1 times [2018-09-14 18:23:21,729 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:23:21,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:23:21,730 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:23:21,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:23:21,731 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:23:21,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:23:22,084 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 18:23:22,084 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 18:23:22,084 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-14 18:23:22,085 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:23:22,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 18:23:22,087 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 18:23:22,088 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-14 18:23:22,088 INFO L87 Difference]: Start difference. First operand 18097 states and 25643 transitions. Second operand 5 states. [2018-09-14 18:23:52,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 18:23:52,769 INFO L93 Difference]: Finished difference Result 56376 states and 85100 transitions. [2018-09-14 18:23:52,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 18:23:52,770 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 194 [2018-09-14 18:23:52,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 18:23:52,938 INFO L225 Difference]: With dead ends: 56376 [2018-09-14 18:23:52,939 INFO L226 Difference]: Without dead ends: 38285 [2018-09-14 18:23:53,007 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 [2018-09-14 18:23:53,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38285 states. [2018-09-14 18:23:53,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38285 to 37203. [2018-09-14 18:23:53,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37203 states. [2018-09-14 18:23:53,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37203 states to 37203 states and 50479 transitions. [2018-09-14 18:23:53,876 INFO L78 Accepts]: Start accepts. Automaton has 37203 states and 50479 transitions. Word has length 194 [2018-09-14 18:23:53,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 18:23:53,877 INFO L480 AbstractCegarLoop]: Abstraction has 37203 states and 50479 transitions. [2018-09-14 18:23:53,877 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 18:23:53,878 INFO L276 IsEmpty]: Start isEmpty. Operand 37203 states and 50479 transitions. [2018-09-14 18:23:53,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2018-09-14 18:23:53,888 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:23:53,888 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 18:23:53,888 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:23:53,889 INFO L82 PathProgramCache]: Analyzing trace with hash -1152839494, now seen corresponding path program 1 times [2018-09-14 18:23:53,889 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:23:53,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:23:53,890 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:23:53,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:23:53,890 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:23:53,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:23:54,433 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 104 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 18:23:54,433 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 18:23:54,433 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 [2018-09-14 18:23:54,453 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:23:54,453 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 18:23:54,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:23:54,565 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 18:23:54,792 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2018-09-14 18:23:54,793 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 18:23:55,768 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 104 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 18:23:55,806 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 18:23:55,806 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 9 [2018-09-14 18:23:55,806 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:23:55,807 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 18:23:55,807 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 18:23:55,808 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-09-14 18:23:55,808 INFO L87 Difference]: Start difference. First operand 37203 states and 50479 transitions. Second operand 5 states. [2018-09-14 18:24:19,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 18:24:19,181 INFO L93 Difference]: Finished difference Result 112995 states and 161590 transitions. [2018-09-14 18:24:19,187 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 18:24:19,188 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 214 [2018-09-14 18:24:19,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 18:24:19,595 INFO L225 Difference]: With dead ends: 112995 [2018-09-14 18:24:19,596 INFO L226 Difference]: Without dead ends: 75798 [2018-09-14 18:24:19,709 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 426 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-09-14 18:24:19,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75798 states. [2018-09-14 18:24:21,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75798 to 74170. [2018-09-14 18:24:21,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74170 states. [2018-09-14 18:24:21,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74170 states to 74170 states and 98993 transitions. [2018-09-14 18:24:21,893 INFO L78 Accepts]: Start accepts. Automaton has 74170 states and 98993 transitions. Word has length 214 [2018-09-14 18:24:21,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 18:24:21,898 INFO L480 AbstractCegarLoop]: Abstraction has 74170 states and 98993 transitions. [2018-09-14 18:24:21,898 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 18:24:21,898 INFO L276 IsEmpty]: Start isEmpty. Operand 74170 states and 98993 transitions. [2018-09-14 18:24:21,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2018-09-14 18:24:21,905 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:24:21,906 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 18:24:21,906 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:24:21,907 INFO L82 PathProgramCache]: Analyzing trace with hash -255493648, now seen corresponding path program 1 times [2018-09-14 18:24:21,907 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:24:21,907 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:24:21,908 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:24:21,908 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:24:21,908 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:24:21,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:24:22,174 WARN L178 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 18:24:22,554 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 104 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 18:24:22,554 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 18:24:22,554 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 [2018-09-14 18:24:22,572 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:24:22,572 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 18:24:22,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:24:22,672 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 18:24:23,145 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2018-09-14 18:24:23,146 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 18:24:23,539 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 104 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 18:24:23,560 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 18:24:23,560 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 10 [2018-09-14 18:24:23,560 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:24:23,561 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 18:24:23,561 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 18:24:23,562 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-09-14 18:24:23,562 INFO L87 Difference]: Start difference. First operand 74170 states and 98993 transitions. Second operand 5 states. [2018-09-14 18:24:46,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 18:24:46,679 INFO L93 Difference]: Finished difference Result 235200 states and 354584 transitions. [2018-09-14 18:24:46,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 18:24:46,680 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 230 [2018-09-14 18:24:46,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 18:24:47,364 INFO L225 Difference]: With dead ends: 235200 [2018-09-14 18:24:47,364 INFO L226 Difference]: Without dead ends: 161036 [2018-09-14 18:24:47,626 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 469 GetRequests, 454 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2018-09-14 18:24:47,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161036 states. [2018-09-14 18:24:51,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161036 to 159234. [2018-09-14 18:24:51,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159234 states. [2018-09-14 18:24:51,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159234 states to 159234 states and 221677 transitions. [2018-09-14 18:24:51,678 INFO L78 Accepts]: Start accepts. Automaton has 159234 states and 221677 transitions. Word has length 230 [2018-09-14 18:24:51,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 18:24:51,679 INFO L480 AbstractCegarLoop]: Abstraction has 159234 states and 221677 transitions. [2018-09-14 18:24:51,679 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 18:24:51,679 INFO L276 IsEmpty]: Start isEmpty. Operand 159234 states and 221677 transitions. [2018-09-14 18:24:51,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2018-09-14 18:24:51,708 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:24:51,708 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 18:24:51,709 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:24:51,709 INFO L82 PathProgramCache]: Analyzing trace with hash -69320967, now seen corresponding path program 1 times [2018-09-14 18:24:51,709 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:24:51,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:24:51,710 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:24:51,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:24:51,710 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:24:51,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:24:52,581 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 258 proven. 98 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2018-09-14 18:24:52,581 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 18:24:52,581 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 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 18:24:52,597 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:24:52,597 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 18:24:52,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:24:52,753 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 18:24:54,293 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 434 proven. 2 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2018-09-14 18:24:54,293 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 18:24:54,602 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-14 18:24:55,395 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 258 proven. 98 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2018-09-14 18:24:55,415 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 18:24:55,415 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 5 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 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 18:24:55,432 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:24:55,432 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 18:24:55,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:24:55,757 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 18:24:56,081 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 434 proven. 2 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2018-09-14 18:24:56,081 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 18:24:56,516 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 258 proven. 98 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2018-09-14 18:24:56,519 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 18:24:56,520 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 16 [2018-09-14 18:24:56,520 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 18:24:56,521 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-14 18:24:56,522 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-14 18:24:56,522 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2018-09-14 18:24:56,522 INFO L87 Difference]: Start difference. First operand 159234 states and 221677 transitions. Second operand 9 states. Received shutdown request... [2018-09-14 18:25:24,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2018-09-14 18:25:24,325 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-14 18:25:24,330 WARN L206 ceAbstractionStarter]: Timeout [2018-09-14 18:25:24,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.09 06:25:24 BoogieIcfgContainer [2018-09-14 18:25:24,330 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-14 18:25:24,331 INFO L168 Benchmark]: Toolchain (without parser) took 233332.54 ms. Allocated memory was 1.5 GB in the beginning and 3.6 GB in the end (delta: 2.0 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -523.9 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-09-14 18:25:24,332 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. [2018-09-14 18:25:24,333 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3680.50 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 210.2 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -132.6 MB). Peak memory consumption was 487.2 MB. Max. memory is 7.1 GB. [2018-09-14 18:25:24,333 INFO L168 Benchmark]: Boogie Procedure Inliner took 350.47 ms. Allocated memory is still 1.8 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 63.2 MB). Peak memory consumption was 63.2 MB. Max. memory is 7.1 GB. [2018-09-14 18:25:24,334 INFO L168 Benchmark]: Boogie Preprocessor took 1824.66 ms. Allocated memory was 1.8 GB in the beginning and 2.6 GB in the end (delta: 852.5 MB). Free memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: -876.1 MB). Peak memory consumption was 128.7 MB. Max. memory is 7.1 GB. [2018-09-14 18:25:24,335 INFO L168 Benchmark]: RCFGBuilder took 17654.81 ms. Allocated memory was 2.6 GB in the beginning and 2.9 GB in the end (delta: 296.7 MB). Free memory was 2.4 GB in the beginning and 2.3 GB in the end (delta: 108.3 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-09-14 18:25:24,336 INFO L168 Benchmark]: TraceAbstraction took 209815.60 ms. Allocated memory was 2.9 GB in the beginning and 3.6 GB in the end (delta: 673.2 MB). Free memory was 2.3 GB in the beginning and 1.9 GB in the end (delta: 313.3 MB). Peak memory consumption was 986.5 MB. Max. memory is 7.1 GB. [2018-09-14 18:25:24,345 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 3680.50 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 210.2 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -132.6 MB). Peak memory consumption was 487.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 350.47 ms. Allocated memory is still 1.8 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 63.2 MB). Peak memory consumption was 63.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1824.66 ms. Allocated memory was 1.8 GB in the beginning and 2.6 GB in the end (delta: 852.5 MB). Free memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: -876.1 MB). Peak memory consumption was 128.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 17654.81 ms. Allocated memory was 2.6 GB in the beginning and 2.9 GB in the end (delta: 296.7 MB). Free memory was 2.4 GB in the beginning and 2.3 GB in the end (delta: 108.3 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. * TraceAbstraction took 209815.60 ms. Allocated memory was 2.9 GB in the beginning and 3.6 GB in the end (delta: 673.2 MB). Free memory was 2.3 GB in the beginning and 1.9 GB in the end (delta: 313.3 MB). Peak memory consumption was 986.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 172]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 172). Cancelled while BasicCegarLoop was constructing difference of abstraction (159234states) and FLOYD_HOARE automaton (currently 51 states, 9 states before enhancement), while ReachableStatesComputation was computing reachable states (157464 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 209.7s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 190.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3884 SDtfs, 43438 SDslu, 5602 SDs, 0 SdLazy, 81237 SolverSat, 17226 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 163.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3097 GetRequests, 2989 SyntacticMatches, 9 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1007 ImplicationChecksByTransitivity, 6.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=159234occurred in iteration=6, 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: 8.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 4633 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 8.8s InterpolantComputationTime, 2972 NumberOfCodeBlocks, 2972 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 4435 ConstructedInterpolants, 0 QuantifiedInterpolants, 3534021 SizeOfPredicates, 2 NumberOfNonLiveVariables, 2410 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 15 InterpolantComputations, 6 PerfectInterpolantSequences, 3090/3654 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/Problem19_label23_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-14_18-25-24-360.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem19_label23_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-14_18-25-24-360.csv Completed graceful shutdown