java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label56_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 08:59:01,863 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 08:59:01,865 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 08:59:01,886 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 08:59:01,887 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 08:59:01,888 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 08:59:01,889 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 08:59:01,891 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 08:59:01,894 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 08:59:01,895 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 08:59:01,896 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 08:59:01,896 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 08:59:01,897 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 08:59:01,898 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 08:59:01,899 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 08:59:01,902 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 08:59:01,903 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 08:59:01,905 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 08:59:01,912 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 08:59:01,914 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 08:59:01,918 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 08:59:01,923 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 08:59:01,926 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 08:59:01,926 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 08:59:01,926 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 08:59:01,931 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 08:59:01,934 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 08:59:01,935 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 08:59:01,936 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 08:59:01,937 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 08:59:01,937 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 08:59:01,938 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-27 08:59:01,943 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-10-27 08:59:01,959 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 08:59:01,959 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 08:59:01,960 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 08:59:01,960 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 08:59:01,961 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 08:59:01,961 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 08:59:01,961 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-27 08:59:01,961 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 08:59:01,962 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-27 08:59:01,962 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 08:59:01,962 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 08:59:01,962 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 08:59:01,962 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 08:59:01,963 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 08:59:01,963 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 08:59:01,963 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 08:59:01,964 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 08:59:01,964 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 08:59:01,964 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 08:59:01,964 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 08:59:01,965 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 08:59:01,965 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 08:59:01,965 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 08:59:01,965 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 08:59:01,965 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 08:59:01,966 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 08:59:01,966 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 08:59:01,966 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 08:59:01,966 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 08:59:01,966 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 08:59:01,967 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 08:59:01,967 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 08:59:01,967 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 08:59:01,967 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 08:59:01,967 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 08:59:01,968 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 08:59:02,012 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 08:59:02,029 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 08:59:02,033 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 08:59:02,035 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 08:59:02,035 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 08:59:02,036 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label56_true-unreach-call.c [2018-10-27 08:59:02,102 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/9a7a62780/d8c167f29caa4f89b3e957f622698e71/FLAG572a633f6 [2018-10-27 08:59:03,019 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 08:59:03,021 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label56_true-unreach-call.c [2018-10-27 08:59:03,073 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/9a7a62780/d8c167f29caa4f89b3e957f622698e71/FLAG572a633f6 [2018-10-27 08:59:03,090 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/9a7a62780/d8c167f29caa4f89b3e957f622698e71 [2018-10-27 08:59:03,103 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 08:59:03,106 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 08:59:03,107 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 08:59:03,107 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 08:59:03,113 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 08:59:03,114 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 08:59:03" (1/1) ... [2018-10-27 08:59:03,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a985278 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:59:03, skipping insertion in model container [2018-10-27 08:59:03,118 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 08:59:03" (1/1) ... [2018-10-27 08:59:03,130 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 08:59:03,393 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 08:59:05,573 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 08:59:05,578 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 08:59:06,735 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 08:59:06,795 INFO L193 MainTranslator]: Completed translation [2018-10-27 08:59:06,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:59:06 WrapperNode [2018-10-27 08:59:06,795 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 08:59:06,796 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 08:59:06,797 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 08:59:06,797 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 08:59:06,808 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:59:06" (1/1) ... [2018-10-27 08:59:06,908 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:59:06" (1/1) ... [2018-10-27 08:59:07,526 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 08:59:07,526 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 08:59:07,527 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 08:59:07,527 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 08:59:07,537 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:59:06" (1/1) ... [2018-10-27 08:59:07,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:59:06" (1/1) ... [2018-10-27 08:59:07,602 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:59:06" (1/1) ... [2018-10-27 08:59:07,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:59:06" (1/1) ... [2018-10-27 08:59:07,801 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:59:06" (1/1) ... [2018-10-27 08:59:07,857 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:59:06" (1/1) ... [2018-10-27 08:59:07,932 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:59:06" (1/1) ... [2018-10-27 08:59:08,043 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 08:59:08,044 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 08:59:08,044 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 08:59:08,045 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 08:59:08,046 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:59:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 08:59:08,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 08:59:08,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 08:59:08,122 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-10-27 08:59:08,122 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-10-27 08:59:08,123 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-10-27 08:59:08,123 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-10-27 08:59:08,123 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-27 08:59:08,123 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-27 08:59:08,123 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-27 08:59:08,124 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-27 08:59:08,124 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 08:59:08,124 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 08:59:08,124 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 08:59:08,125 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 08:59:08,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 08:59:08,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 08:59:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 08:59:08,126 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 08:59:25,907 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 08:59:25,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 08:59:25 BoogieIcfgContainer [2018-10-27 08:59:25,908 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 08:59:25,910 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 08:59:25,910 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 08:59:25,913 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 08:59:25,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 08:59:03" (1/3) ... [2018-10-27 08:59:25,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70cd7ba2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 08:59:25, skipping insertion in model container [2018-10-27 08:59:25,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:59:06" (2/3) ... [2018-10-27 08:59:25,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70cd7ba2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 08:59:25, skipping insertion in model container [2018-10-27 08:59:25,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 08:59:25" (3/3) ... [2018-10-27 08:59:25,918 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label56_true-unreach-call.c [2018-10-27 08:59:25,928 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 08:59:25,939 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 08:59:25,957 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 08:59:26,011 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 08:59:26,011 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 08:59:26,011 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 08:59:26,011 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 08:59:26,011 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 08:59:26,012 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 08:59:26,012 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 08:59:26,012 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 08:59:26,075 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-10-27 08:59:26,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-10-27 08:59:26,085 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:59:26,086 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 08:59:26,088 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:59:26,095 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:59:26,095 INFO L82 PathProgramCache]: Analyzing trace with hash -1524406668, now seen corresponding path program 1 times [2018-10-27 08:59:26,098 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:59:26,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:59:26,149 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:59:26,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:59:26,149 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:59:26,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:59:26,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 08:59:26,578 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 08:59:26,579 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 08:59:26,579 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:59:26,585 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 08:59:26,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 08:59:26,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 08:59:26,607 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 4 states. [2018-10-27 08:59:50,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:59:50,130 INFO L93 Difference]: Finished difference Result 6513 states and 12383 transitions. [2018-10-27 08:59:50,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 08:59:50,133 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2018-10-27 08:59:50,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:59:50,199 INFO L225 Difference]: With dead ends: 6513 [2018-10-27 08:59:50,200 INFO L226 Difference]: Without dead ends: 4729 [2018-10-27 08:59:50,220 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 08:59:50,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4729 states. [2018-10-27 08:59:50,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4729 to 4693. [2018-10-27 08:59:50,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4693 states. [2018-10-27 08:59:50,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4693 states to 4693 states and 7735 transitions. [2018-10-27 08:59:50,627 INFO L78 Accepts]: Start accepts. Automaton has 4693 states and 7735 transitions. Word has length 58 [2018-10-27 08:59:50,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:59:50,628 INFO L481 AbstractCegarLoop]: Abstraction has 4693 states and 7735 transitions. [2018-10-27 08:59:50,628 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 08:59:50,628 INFO L276 IsEmpty]: Start isEmpty. Operand 4693 states and 7735 transitions. [2018-10-27 08:59:50,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-10-27 08:59:50,636 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:59:50,637 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 08:59:50,637 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:59:50,637 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:59:50,637 INFO L82 PathProgramCache]: Analyzing trace with hash 650916201, now seen corresponding path program 1 times [2018-10-27 08:59:50,637 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:59:50,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:59:50,639 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:59:50,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:59:50,639 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:59:50,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:59:51,006 WARN L179 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 08:59:51,414 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 08:59:51,415 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 08:59:51,415 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 08:59:51,415 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:59:51,418 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 08:59:51,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 08:59:51,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 08:59:51,419 INFO L87 Difference]: Start difference. First operand 4693 states and 7735 transitions. Second operand 6 states. [2018-10-27 09:00:20,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 09:00:20,487 INFO L93 Difference]: Finished difference Result 17886 states and 30173 transitions. [2018-10-27 09:00:20,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 09:00:20,489 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 130 [2018-10-27 09:00:20,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 09:00:20,555 INFO L225 Difference]: With dead ends: 17886 [2018-10-27 09:00:20,555 INFO L226 Difference]: Without dead ends: 13199 [2018-10-27 09:00:20,581 INFO L605 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 [2018-10-27 09:00:20,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13199 states. [2018-10-27 09:00:21,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13199 to 13130. [2018-10-27 09:00:21,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13130 states. [2018-10-27 09:00:21,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13130 states to 13130 states and 19368 transitions. [2018-10-27 09:00:21,081 INFO L78 Accepts]: Start accepts. Automaton has 13130 states and 19368 transitions. Word has length 130 [2018-10-27 09:00:21,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 09:00:21,082 INFO L481 AbstractCegarLoop]: Abstraction has 13130 states and 19368 transitions. [2018-10-27 09:00:21,082 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 09:00:21,082 INFO L276 IsEmpty]: Start isEmpty. Operand 13130 states and 19368 transitions. [2018-10-27 09:00:21,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-10-27 09:00:21,091 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 09:00:21,096 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 09:00:21,096 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 09:00:21,096 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 09:00:21,098 INFO L82 PathProgramCache]: Analyzing trace with hash -1399116121, now seen corresponding path program 1 times [2018-10-27 09:00:21,098 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 09:00:21,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 09:00:21,099 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 09:00:21,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 09:00:21,099 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 09:00:21,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 09:00:21,649 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 09:00:21,649 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 09:00:21,649 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 09:00:21,650 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 09:00:21,650 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 09:00:21,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 09:00:21,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-27 09:00:21,653 INFO L87 Difference]: Start difference. First operand 13130 states and 19368 transitions. Second operand 6 states. [2018-10-27 09:00:48,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 09:00:48,577 INFO L93 Difference]: Finished difference Result 39926 states and 60269 transitions. [2018-10-27 09:00:48,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-27 09:00:48,578 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 140 [2018-10-27 09:00:48,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 09:00:48,682 INFO L225 Difference]: With dead ends: 39926 [2018-10-27 09:00:48,682 INFO L226 Difference]: Without dead ends: 26802 [2018-10-27 09:00:48,723 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-10-27 09:00:48,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26802 states. [2018-10-27 09:00:49,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26802 to 26563. [2018-10-27 09:00:49,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26563 states. [2018-10-27 09:00:49,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26563 states to 26563 states and 38680 transitions. [2018-10-27 09:00:49,335 INFO L78 Accepts]: Start accepts. Automaton has 26563 states and 38680 transitions. Word has length 140 [2018-10-27 09:00:49,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 09:00:49,338 INFO L481 AbstractCegarLoop]: Abstraction has 26563 states and 38680 transitions. [2018-10-27 09:00:49,338 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 09:00:49,338 INFO L276 IsEmpty]: Start isEmpty. Operand 26563 states and 38680 transitions. [2018-10-27 09:00:49,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2018-10-27 09:00:49,342 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 09:00:49,342 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 09:00:49,343 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 09:00:49,346 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 09:00:49,347 INFO L82 PathProgramCache]: Analyzing trace with hash 564505847, now seen corresponding path program 1 times [2018-10-27 09:00:49,347 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 09:00:49,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 09:00:49,348 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 09:00:49,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 09:00:49,348 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 09:00:49,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 09:00:49,625 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 09:00:49,996 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 09:00:49,997 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 09:00:49,997 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 09:00:49,997 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 09:00:50,000 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 09:00:50,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 09:00:50,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 09:00:50,001 INFO L87 Difference]: Start difference. First operand 26563 states and 38680 transitions. Second operand 6 states. [2018-10-27 09:01:14,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 09:01:14,845 INFO L93 Difference]: Finished difference Result 70599 states and 106842 transitions. [2018-10-27 09:01:14,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 09:01:14,852 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 173 [2018-10-27 09:01:14,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 09:01:15,014 INFO L225 Difference]: With dead ends: 70599 [2018-10-27 09:01:15,015 INFO L226 Difference]: Without dead ends: 44042 [2018-10-27 09:01:15,114 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 09:01:15,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44042 states. [2018-10-27 09:01:16,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44042 to 43884. [2018-10-27 09:01:16,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43884 states. [2018-10-27 09:01:16,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43884 states to 43884 states and 61158 transitions. [2018-10-27 09:01:16,350 INFO L78 Accepts]: Start accepts. Automaton has 43884 states and 61158 transitions. Word has length 173 [2018-10-27 09:01:16,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 09:01:16,351 INFO L481 AbstractCegarLoop]: Abstraction has 43884 states and 61158 transitions. [2018-10-27 09:01:16,351 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 09:01:16,351 INFO L276 IsEmpty]: Start isEmpty. Operand 43884 states and 61158 transitions. [2018-10-27 09:01:16,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2018-10-27 09:01:16,357 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 09:01:16,357 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 09:01:16,358 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 09:01:16,359 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 09:01:16,359 INFO L82 PathProgramCache]: Analyzing trace with hash 1395186466, now seen corresponding path program 1 times [2018-10-27 09:01:16,359 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 09:01:16,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 09:01:16,360 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 09:01:16,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 09:01:16,362 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 09:01:16,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 09:01:16,677 WARN L179 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 09:01:16,823 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 102 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-27 09:01:16,824 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 09:01:16,824 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 09:01:16,825 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 210 with the following transitions: [2018-10-27 09:01:16,827 INFO L202 CegarAbsIntRunner]: [0], [1], [5227], [5234], [5242], [5250], [5258], [5266], [5274], [5282], [5290], [5298], [5306], [5314], [5322], [5330], [5338], [5346], [5354], [5362], [5370], [5378], [5386], [5394], [5402], [5410], [5418], [5426], [5434], [5442], [5450], [5458], [5466], [5474], [5482], [5490], [5498], [5506], [5514], [5522], [5530], [5538], [5546], [5554], [5562], [5570], [5578], [5586], [5590], [5592], [5595], [5603], [5611], [5619], [5627], [5635], [5643], [5651], [5659], [5667], [5675], [5683], [5691], [5699], [5707], [5715], [5719], [5722], [5726], [5727], [5731], [5742], [5746], [5750], [5754], [5758], [5762], [5766], [5769], [6802], [6806], [6810], [6816], [6820], [6822], [6837], [6838], [6839], [6841], [6842] [2018-10-27 09:01:16,892 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 09:01:16,892 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 09:01:17,350 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 09:01:17,356 INFO L272 AbstractInterpreter]: Visited 84 different actions 84 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-27 09:01:17,385 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 09:01:17,386 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 09:01:17,816 INFO L227 lantSequenceWeakener]: Weakened 198 states. On average, predicates are now at 75.8% of their original sizes. [2018-10-27 09:01:17,816 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 09:01:17,943 INFO L415 sIntCurrentIteration]: We unified 208 AI predicates to 208 [2018-10-27 09:01:17,943 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 09:01:17,944 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 09:01:17,944 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-10-27 09:01:17,945 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 09:01:17,945 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 09:01:17,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 09:01:17,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 09:01:17,946 INFO L87 Difference]: Start difference. First operand 43884 states and 61158 transitions. Second operand 6 states. Received shutdown request... [2018-10-27 09:02:56,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-27 09:02:56,004 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 09:02:56,010 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 09:02:56,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 09:02:56 BoogieIcfgContainer [2018-10-27 09:02:56,010 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 09:02:56,011 INFO L168 Benchmark]: Toolchain (without parser) took 232907.37 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.7 GB in the end (delta: -2.3 GB). Peak memory consumption was 362.3 MB. Max. memory is 7.1 GB. [2018-10-27 09:02:56,014 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 09:02:56,015 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3688.92 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 997.6 MB in the end (delta: 403.3 MB). Peak memory consumption was 403.3 MB. Max. memory is 7.1 GB. [2018-10-27 09:02:56,016 INFO L168 Benchmark]: Boogie Procedure Inliner took 729.64 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 856.7 MB). Free memory was 997.6 MB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. [2018-10-27 09:02:56,017 INFO L168 Benchmark]: Boogie Preprocessor took 517.45 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 59.7 MB). Peak memory consumption was 59.7 MB. Max. memory is 7.1 GB. [2018-10-27 09:02:56,017 INFO L168 Benchmark]: RCFGBuilder took 17864.42 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 169.9 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 512.5 MB). Peak memory consumption was 682.4 MB. Max. memory is 7.1 GB. [2018-10-27 09:02:56,018 INFO L168 Benchmark]: TraceAbstraction took 210100.71 ms. Allocated memory was 2.6 GB in the beginning and 4.2 GB in the end (delta: 1.6 GB). Free memory was 1.7 GB in the beginning and 3.7 GB in the end (delta: -2.0 GB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 09:02:56,024 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3688.92 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 997.6 MB in the end (delta: 403.3 MB). Peak memory consumption was 403.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 729.64 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 856.7 MB). Free memory was 997.6 MB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 517.45 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 59.7 MB). Peak memory consumption was 59.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 17864.42 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 169.9 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 512.5 MB). Peak memory consumption was 682.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 210100.71 ms. Allocated memory was 2.6 GB in the beginning and 4.2 GB in the end (delta: 1.6 GB). Free memory was 1.7 GB in the beginning and 3.7 GB in the end (delta: -2.0 GB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 169]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 169). Cancelled while BasicCegarLoop was constructing difference of abstraction (43884states) and FLOYD_HOARE automaton (currently 6 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (14317 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 210.0s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 203.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3371 SDtfs, 26315 SDslu, 3259 SDs, 0 SdLazy, 42658 SolverSat, 9730 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 169.5s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 245 GetRequests, 215 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43884occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.5s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.99772600587818 AbsIntWeakeningRatio, 0.1346153846153846 AbsIntAvgWeakeningVarsNumRemoved, 17.16346153846154 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.7s AutomataMinimizationTime, 4 MinimizatonAttempts, 502 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 710 NumberOfCodeBlocks, 710 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 705 ConstructedInterpolants, 0 QuantifiedInterpolants, 429201 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 260/325 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown