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-INT.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label22_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 12:09:45,918 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 12:09:45,920 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 12:09:45,933 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 12:09:45,933 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 12:09:45,934 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 12:09:45,935 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 12:09:45,937 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 12:09:45,939 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 12:09:45,939 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 12:09:45,940 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 12:09:45,941 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 12:09:45,942 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 12:09:45,943 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 12:09:45,944 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 12:09:45,945 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 12:09:45,946 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 12:09:45,948 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 12:09:45,949 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 12:09:45,951 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 12:09:45,952 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 12:09:45,953 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 12:09:45,956 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 12:09:45,956 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 12:09:45,957 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 12:09:45,957 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 12:09:45,958 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 12:09:45,959 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 12:09:45,960 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 12:09:45,961 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 12:09:45,962 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 12:09:45,962 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 12:09:45,963 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 12:09:45,963 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 12:09:45,964 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 12:09:45,965 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 12:09:45,965 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT.epf [2018-10-27 12:09:45,998 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 12:09:45,999 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 12:09:46,000 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 12:09:46,000 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 12:09:46,000 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 12:09:46,000 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 12:09:46,000 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 12:09:46,001 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-27 12:09:46,001 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 12:09:46,001 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 12:09:46,002 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 12:09:46,002 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 12:09:46,003 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 12:09:46,003 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 12:09:46,003 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 12:09:46,003 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 12:09:46,003 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 12:09:46,003 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 12:09:46,005 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 12:09:46,005 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 12:09:46,005 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 12:09:46,005 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 12:09:46,005 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 12:09:46,006 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 12:09:46,006 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 12:09:46,006 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 12:09:46,006 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 12:09:46,007 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 12:09:46,007 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 12:09:46,007 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 12:09:46,007 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 12:09:46,007 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 12:09:46,007 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 12:09:46,008 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 12:09:46,060 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 12:09:46,074 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 12:09:46,078 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 12:09:46,079 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 12:09:46,080 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 12:09:46,081 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label22_false-unreach-call.c [2018-10-27 12:09:46,142 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/1f6ea73d8/5315820878a44513bccd520de574e537/FLAG70038cdff [2018-10-27 12:09:47,083 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 12:09:47,085 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label22_false-unreach-call.c [2018-10-27 12:09:47,136 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/1f6ea73d8/5315820878a44513bccd520de574e537/FLAG70038cdff [2018-10-27 12:09:47,152 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/1f6ea73d8/5315820878a44513bccd520de574e537 [2018-10-27 12:09:47,167 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 12:09:47,170 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 12:09:47,171 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 12:09:47,172 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 12:09:47,176 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 12:09:47,177 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:09:47" (1/1) ... [2018-10-27 12:09:47,181 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8de4687 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:09:47, skipping insertion in model container [2018-10-27 12:09:47,181 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:09:47" (1/1) ... [2018-10-27 12:09:47,193 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 12:09:47,457 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 12:09:49,507 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 12:09:49,512 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 12:09:50,773 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 12:09:50,830 INFO L193 MainTranslator]: Completed translation [2018-10-27 12:09:50,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:09:50 WrapperNode [2018-10-27 12:09:50,831 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 12:09:50,832 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 12:09:50,832 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 12:09:50,832 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 12:09:50,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:09:50" (1/1) ... [2018-10-27 12:09:50,948 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:09:50" (1/1) ... [2018-10-27 12:09:51,617 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 12:09:51,618 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 12:09:51,618 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 12:09:51,618 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 12:09:51,629 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:09:50" (1/1) ... [2018-10-27 12:09:51,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:09:50" (1/1) ... [2018-10-27 12:09:51,678 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:09:50" (1/1) ... [2018-10-27 12:09:51,678 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:09:50" (1/1) ... [2018-10-27 12:09:51,857 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:09:50" (1/1) ... [2018-10-27 12:09:51,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:09:50" (1/1) ... [2018-10-27 12:09:51,973 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:09:50" (1/1) ... [2018-10-27 12:09:52,031 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 12:09:52,032 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 12:09:52,032 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 12:09:52,032 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 12:09:52,033 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:09:50" (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 12:09:52,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 12:09:52,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 12:09:52,098 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-10-27 12:09:52,098 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-10-27 12:09:52,098 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-10-27 12:09:52,099 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-10-27 12:09:52,099 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-27 12:09:52,099 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-27 12:09:52,099 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-27 12:09:52,099 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-27 12:09:52,100 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 12:09:52,100 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 12:09:52,100 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 12:09:52,100 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 12:09:52,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 12:09:52,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 12:09:52,101 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 12:09:52,101 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 12:10:09,619 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 12:10:09,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:10:09 BoogieIcfgContainer [2018-10-27 12:10:09,621 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 12:10:09,622 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 12:10:09,622 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 12:10:09,626 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 12:10:09,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:09:47" (1/3) ... [2018-10-27 12:10:09,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62b40bd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:10:09, skipping insertion in model container [2018-10-27 12:10:09,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:09:50" (2/3) ... [2018-10-27 12:10:09,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62b40bd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:10:09, skipping insertion in model container [2018-10-27 12:10:09,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:10:09" (3/3) ... [2018-10-27 12:10:09,630 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label22_false-unreach-call.c [2018-10-27 12:10:09,640 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 12:10:09,651 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 12:10:09,670 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 12:10:09,722 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 12:10:09,722 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 12:10:09,722 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 12:10:09,723 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 12:10:09,723 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 12:10:09,723 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 12:10:09,723 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 12:10:09,723 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 12:10:09,778 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-10-27 12:10:09,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-10-27 12:10:09,786 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 12:10:09,787 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] [2018-10-27 12:10:09,789 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 12:10:09,794 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 12:10:09,794 INFO L82 PathProgramCache]: Analyzing trace with hash 655645660, now seen corresponding path program 1 times [2018-10-27 12:10:09,796 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 12:10:09,844 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:10:09,844 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 12:10:09,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:10:09,845 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 12:10:09,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 12:10:10,200 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 12:10:10,304 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 12:10:10,306 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 12:10:10,307 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 12:10:10,307 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 12:10:10,314 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 12:10:10,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 12:10:10,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 12:10:10,334 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-10-27 12:10:25,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 12:10:25,808 INFO L93 Difference]: Finished difference Result 5034 states and 9499 transitions. [2018-10-27 12:10:25,816 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 12:10:25,817 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 36 [2018-10-27 12:10:25,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 12:10:25,869 INFO L225 Difference]: With dead ends: 5034 [2018-10-27 12:10:25,869 INFO L226 Difference]: Without dead ends: 3254 [2018-10-27 12:10:25,881 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 12:10:25,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3254 states. [2018-10-27 12:10:26,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3254 to 3207. [2018-10-27 12:10:26,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3207 states. [2018-10-27 12:10:26,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3207 states to 3207 states and 5994 transitions. [2018-10-27 12:10:26,099 INFO L78 Accepts]: Start accepts. Automaton has 3207 states and 5994 transitions. Word has length 36 [2018-10-27 12:10:26,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 12:10:26,100 INFO L481 AbstractCegarLoop]: Abstraction has 3207 states and 5994 transitions. [2018-10-27 12:10:26,100 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 12:10:26,100 INFO L276 IsEmpty]: Start isEmpty. Operand 3207 states and 5994 transitions. [2018-10-27 12:10:26,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-10-27 12:10:26,110 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 12:10:26,110 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:10:26,110 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 12:10:26,111 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 12:10:26,111 INFO L82 PathProgramCache]: Analyzing trace with hash -1545584319, now seen corresponding path program 1 times [2018-10-27 12:10:26,111 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 12:10:26,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:10:26,112 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 12:10:26,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:10:26,113 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 12:10:26,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 12:10:26,707 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 12:10:26,708 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 12:10:26,708 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 12:10:26,708 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 12:10:26,710 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 12:10:26,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 12:10:26,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-27 12:10:26,711 INFO L87 Difference]: Start difference. First operand 3207 states and 5994 transitions. Second operand 6 states. [2018-10-27 12:10:59,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 12:10:59,909 INFO L93 Difference]: Finished difference Result 9593 states and 17986 transitions. [2018-10-27 12:10:59,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-27 12:10:59,909 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 109 [2018-10-27 12:10:59,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 12:10:59,945 INFO L225 Difference]: With dead ends: 9593 [2018-10-27 12:10:59,946 INFO L226 Difference]: Without dead ends: 6392 [2018-10-27 12:10:59,957 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-10-27 12:10:59,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6392 states. [2018-10-27 12:11:00,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6392 to 6284. [2018-10-27 12:11:00,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6284 states. [2018-10-27 12:11:00,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6284 states to 6284 states and 11316 transitions. [2018-10-27 12:11:00,157 INFO L78 Accepts]: Start accepts. Automaton has 6284 states and 11316 transitions. Word has length 109 [2018-10-27 12:11:00,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 12:11:00,158 INFO L481 AbstractCegarLoop]: Abstraction has 6284 states and 11316 transitions. [2018-10-27 12:11:00,158 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 12:11:00,158 INFO L276 IsEmpty]: Start isEmpty. Operand 6284 states and 11316 transitions. [2018-10-27 12:11:00,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-10-27 12:11:00,163 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 12:11:00,164 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:11:00,164 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 12:11:00,164 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 12:11:00,165 INFO L82 PathProgramCache]: Analyzing trace with hash 205222398, now seen corresponding path program 1 times [2018-10-27 12:11:00,170 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 12:11:00,171 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:11:00,171 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 12:11:00,171 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:11:00,171 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 12:11:00,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 12:11:00,406 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 12:11:00,407 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 12:11:00,407 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 12:11:00,407 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 12:11:00,408 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 12:11:00,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 12:11:00,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 12:11:00,409 INFO L87 Difference]: Start difference. First operand 6284 states and 11316 transitions. Second operand 5 states. [2018-10-27 12:11:29,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 12:11:29,498 INFO L93 Difference]: Finished difference Result 18979 states and 34408 transitions. [2018-10-27 12:11:29,499 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-27 12:11:29,499 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 123 [2018-10-27 12:11:29,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 12:11:29,547 INFO L225 Difference]: With dead ends: 18979 [2018-10-27 12:11:29,547 INFO L226 Difference]: Without dead ends: 12701 [2018-10-27 12:11:29,566 INFO L605 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 [2018-10-27 12:11:29,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12701 states. [2018-10-27 12:11:29,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12701 to 12425. [2018-10-27 12:11:29,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12425 states. [2018-10-27 12:11:29,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12425 states to 12425 states and 18953 transitions. [2018-10-27 12:11:29,883 INFO L78 Accepts]: Start accepts. Automaton has 12425 states and 18953 transitions. Word has length 123 [2018-10-27 12:11:29,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 12:11:29,884 INFO L481 AbstractCegarLoop]: Abstraction has 12425 states and 18953 transitions. [2018-10-27 12:11:29,884 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 12:11:29,884 INFO L276 IsEmpty]: Start isEmpty. Operand 12425 states and 18953 transitions. [2018-10-27 12:11:29,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2018-10-27 12:11:29,888 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 12:11:29,889 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-27 12:11:29,889 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 12:11:29,889 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 12:11:29,889 INFO L82 PathProgramCache]: Analyzing trace with hash -1515004663, now seen corresponding path program 1 times [2018-10-27 12:11:29,889 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 12:11:29,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:11:29,891 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 12:11:29,891 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:11:29,891 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 12:11:29,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 12:11:30,233 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 58 proven. 82 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-27 12:11:30,234 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 12:11:30,234 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 12:11:30,235 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 214 with the following transitions: [2018-10-27 12:11:30,236 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], [5414], [5416], [5419], [5427], [5435], [5443], [5451], [5459], [5467], [5475], [5483], [5491], [5499], [5507], [5515], [5523], [5531], [5539], [5547], [5555], [5563], [5571], [5579], [5587], [5595], [5603], [5611], [5619], [5627], [5635], [5643], [5651], [5659], [5667], [5675], [5683], [5691], [5699], [5707], [5715], [5727], [5731], [5742], [5746], [5750], [5754], [5758], [5762], [5766], [5770], [5774], [5778], [5782], [5786], [5797], [5808], [5819], [5822], [5823], [5827], [5838], [5841], [6802], [6806], [6810], [6816], [6820], [6822], [6837], [6838], [6839], [6841], [6842] [2018-10-27 12:11:30,288 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-10-27 12:11:30,288 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 12:11:30,854 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 12:11:30,855 INFO L272 AbstractInterpreter]: Visited 95 different actions 95 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-27 12:11:30,868 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 12:11:30,868 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 12:11:31,379 INFO L227 lantSequenceWeakener]: Weakened 204 states. On average, predicates are now at 75.28% of their original sizes. [2018-10-27 12:11:31,379 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 12:11:31,561 INFO L415 sIntCurrentIteration]: We unified 212 AI predicates to 212 [2018-10-27 12:11:31,561 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 12:11:31,562 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 12:11:31,562 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-10-27 12:11:31,562 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 12:11:31,563 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-27 12:11:31,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-27 12:11:31,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-27 12:11:31,564 INFO L87 Difference]: Start difference. First operand 12425 states and 18953 transitions. Second operand 7 states. [2018-10-27 12:11:33,923 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown