java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label40_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-24 01:08:06,971 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 01:08:06,973 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 01:08:06,989 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 01:08:06,989 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 01:08:06,990 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 01:08:06,992 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 01:08:06,994 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 01:08:06,995 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 01:08:06,996 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 01:08:06,997 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 01:08:06,998 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 01:08:06,999 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 01:08:07,000 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 01:08:07,001 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 01:08:07,002 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 01:08:07,003 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 01:08:07,005 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 01:08:07,009 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 01:08:07,012 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 01:08:07,015 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 01:08:07,018 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 01:08:07,023 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 01:08:07,024 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 01:08:07,024 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 01:08:07,025 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 01:08:07,027 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 01:08:07,028 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 01:08:07,031 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 01:08:07,032 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 01:08:07,033 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 01:08:07,034 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 01:08:07,035 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 01:08:07,035 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 01:08:07,036 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 01:08:07,038 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 01:08:07,038 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 01:08:07,067 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 01:08:07,068 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 01:08:07,069 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 01:08:07,069 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 01:08:07,069 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 01:08:07,070 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 01:08:07,070 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 01:08:07,070 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 01:08:07,070 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 01:08:07,071 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 01:08:07,071 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 01:08:07,071 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 01:08:07,072 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 01:08:07,072 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 01:08:07,072 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 01:08:07,072 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 01:08:07,073 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 01:08:07,074 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 01:08:07,074 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 01:08:07,074 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 01:08:07,074 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 01:08:07,075 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 01:08:07,075 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 01:08:07,075 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 01:08:07,075 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 01:08:07,075 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 01:08:07,076 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 01:08:07,076 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 01:08:07,076 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 01:08:07,077 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 01:08:07,077 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 01:08:07,077 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 01:08:07,077 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 01:08:07,077 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 01:08:07,131 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 01:08:07,148 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 01:08:07,153 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 01:08:07,155 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 01:08:07,155 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 01:08:07,156 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label40_true-unreach-call.c [2018-10-24 01:08:07,231 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/bfc29c3db/09d9b0dd41cb42138a51175b0744bebc/FLAG723cacb11 [2018-10-24 01:08:07,968 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 01:08:07,969 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label40_true-unreach-call.c [2018-10-24 01:08:07,987 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/bfc29c3db/09d9b0dd41cb42138a51175b0744bebc/FLAG723cacb11 [2018-10-24 01:08:08,008 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/bfc29c3db/09d9b0dd41cb42138a51175b0744bebc [2018-10-24 01:08:08,021 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 01:08:08,023 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 01:08:08,026 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 01:08:08,026 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 01:08:08,030 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 01:08:08,031 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:08:08" (1/1) ... [2018-10-24 01:08:08,036 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@436ba03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:08:08, skipping insertion in model container [2018-10-24 01:08:08,036 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:08:08" (1/1) ... [2018-10-24 01:08:08,044 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 01:08:08,132 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 01:08:08,790 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 01:08:08,795 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 01:08:08,962 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 01:08:08,981 INFO L193 MainTranslator]: Completed translation [2018-10-24 01:08:08,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:08:08 WrapperNode [2018-10-24 01:08:08,982 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 01:08:08,983 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 01:08:08,983 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 01:08:08,983 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 01:08:08,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:08:08" (1/1) ... [2018-10-24 01:08:09,023 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:08:08" (1/1) ... [2018-10-24 01:08:09,254 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 01:08:09,255 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 01:08:09,255 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 01:08:09,255 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 01:08:09,267 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:08:08" (1/1) ... [2018-10-24 01:08:09,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:08:08" (1/1) ... [2018-10-24 01:08:09,278 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:08:08" (1/1) ... [2018-10-24 01:08:09,279 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:08:08" (1/1) ... [2018-10-24 01:08:09,324 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:08:08" (1/1) ... [2018-10-24 01:08:09,353 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:08:08" (1/1) ... [2018-10-24 01:08:09,370 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:08:08" (1/1) ... [2018-10-24 01:08:09,387 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 01:08:09,388 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 01:08:09,388 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 01:08:09,388 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 01:08:09,390 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:08:08" (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 [2018-10-24 01:08:09,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 01:08:09,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 01:08:09,454 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 01:08:09,455 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 01:08:09,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 01:08:09,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 01:08:09,455 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 01:08:09,455 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 01:08:13,787 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 01:08:13,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:08:13 BoogieIcfgContainer [2018-10-24 01:08:13,788 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 01:08:13,789 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 01:08:13,790 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 01:08:13,793 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 01:08:13,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:08:08" (1/3) ... [2018-10-24 01:08:13,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fbbbe30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:08:13, skipping insertion in model container [2018-10-24 01:08:13,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:08:08" (2/3) ... [2018-10-24 01:08:13,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fbbbe30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:08:13, skipping insertion in model container [2018-10-24 01:08:13,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:08:13" (3/3) ... [2018-10-24 01:08:13,798 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label40_true-unreach-call.c [2018-10-24 01:08:13,808 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 01:08:13,816 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 01:08:13,836 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 01:08:13,880 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 01:08:13,880 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 01:08:13,880 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 01:08:13,881 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 01:08:13,881 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 01:08:13,881 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 01:08:13,881 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 01:08:13,881 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 01:08:13,924 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-10-24 01:08:13,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-10-24 01:08:13,933 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:08:13,934 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] [2018-10-24 01:08:13,937 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:08:13,943 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:08:13,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1597771487, now seen corresponding path program 1 times [2018-10-24 01:08:13,946 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:08:13,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:08:13,999 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:08:14,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:08:14,000 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:08:14,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:08:14,522 WARN L179 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-10-24 01:08:14,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 01:08:14,540 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 01:08:14,541 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 01:08:14,541 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:08:14,548 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 01:08:14,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 01:08:14,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 01:08:14,568 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 4 states. [2018-10-24 01:08:18,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:08:18,250 INFO L93 Difference]: Finished difference Result 979 states and 1754 transitions. [2018-10-24 01:08:18,251 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 01:08:18,252 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2018-10-24 01:08:18,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:08:18,278 INFO L225 Difference]: With dead ends: 979 [2018-10-24 01:08:18,278 INFO L226 Difference]: Without dead ends: 680 [2018-10-24 01:08:18,288 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 [2018-10-24 01:08:18,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2018-10-24 01:08:18,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 484. [2018-10-24 01:08:18,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 484 states. [2018-10-24 01:08:18,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 730 transitions. [2018-10-24 01:08:18,379 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 730 transitions. Word has length 51 [2018-10-24 01:08:18,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:08:18,379 INFO L481 AbstractCegarLoop]: Abstraction has 484 states and 730 transitions. [2018-10-24 01:08:18,380 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 01:08:18,380 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 730 transitions. [2018-10-24 01:08:18,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-10-24 01:08:18,388 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:08:18,388 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 01:08:18,389 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:08:18,389 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:08:18,389 INFO L82 PathProgramCache]: Analyzing trace with hash 686344627, now seen corresponding path program 1 times [2018-10-24 01:08:18,389 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:08:18,390 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:08:18,391 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:08:18,391 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:08:18,391 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:08:18,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:08:18,744 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 01:08:18,745 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 01:08:18,745 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 01:08:18,745 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:08:18,747 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 01:08:18,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 01:08:18,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 01:08:18,748 INFO L87 Difference]: Start difference. First operand 484 states and 730 transitions. Second operand 6 states. [2018-10-24 01:08:23,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:08:23,006 INFO L93 Difference]: Finished difference Result 1555 states and 2493 transitions. [2018-10-24 01:08:23,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 01:08:23,008 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 124 [2018-10-24 01:08:23,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:08:23,018 INFO L225 Difference]: With dead ends: 1555 [2018-10-24 01:08:23,018 INFO L226 Difference]: Without dead ends: 1077 [2018-10-24 01:08:23,022 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 01:08:23,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2018-10-24 01:08:23,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 1063. [2018-10-24 01:08:23,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1063 states. [2018-10-24 01:08:23,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1063 states to 1063 states and 1592 transitions. [2018-10-24 01:08:23,083 INFO L78 Accepts]: Start accepts. Automaton has 1063 states and 1592 transitions. Word has length 124 [2018-10-24 01:08:23,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:08:23,084 INFO L481 AbstractCegarLoop]: Abstraction has 1063 states and 1592 transitions. [2018-10-24 01:08:23,084 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 01:08:23,084 INFO L276 IsEmpty]: Start isEmpty. Operand 1063 states and 1592 transitions. [2018-10-24 01:08:23,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-10-24 01:08:23,088 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:08:23,089 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 01:08:23,089 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:08:23,089 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:08:23,090 INFO L82 PathProgramCache]: Analyzing trace with hash 2122174748, now seen corresponding path program 1 times [2018-10-24 01:08:23,090 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:08:23,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:08:23,091 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:08:23,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:08:23,091 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:08:23,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:08:23,318 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 01:08:23,319 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 01:08:23,319 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 01:08:23,319 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:08:23,320 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 01:08:23,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 01:08:23,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 01:08:23,321 INFO L87 Difference]: Start difference. First operand 1063 states and 1592 transitions. Second operand 4 states. [2018-10-24 01:08:26,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:08:26,724 INFO L93 Difference]: Finished difference Result 2907 states and 4465 transitions. [2018-10-24 01:08:26,732 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 01:08:26,732 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 125 [2018-10-24 01:08:26,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:08:26,753 INFO L225 Difference]: With dead ends: 2907 [2018-10-24 01:08:26,753 INFO L226 Difference]: Without dead ends: 1850 [2018-10-24 01:08:26,763 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 01:08:26,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1850 states. [2018-10-24 01:08:26,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1850 to 1646. [2018-10-24 01:08:26,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1646 states. [2018-10-24 01:08:26,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1646 states to 1646 states and 2436 transitions. [2018-10-24 01:08:26,845 INFO L78 Accepts]: Start accepts. Automaton has 1646 states and 2436 transitions. Word has length 125 [2018-10-24 01:08:26,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:08:26,846 INFO L481 AbstractCegarLoop]: Abstraction has 1646 states and 2436 transitions. [2018-10-24 01:08:26,846 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 01:08:26,846 INFO L276 IsEmpty]: Start isEmpty. Operand 1646 states and 2436 transitions. [2018-10-24 01:08:26,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-10-24 01:08:26,855 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:08:26,856 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 01:08:26,856 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:08:26,856 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:08:26,857 INFO L82 PathProgramCache]: Analyzing trace with hash -777131457, now seen corresponding path program 1 times [2018-10-24 01:08:26,857 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:08:26,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:08:26,858 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:08:26,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:08:26,858 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:08:26,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:08:27,478 WARN L179 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-10-24 01:08:27,969 WARN L179 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 16 [2018-10-24 01:08:28,237 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 01:08:28,237 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 01:08:28,237 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-24 01:08:28,238 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:08:28,238 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 01:08:28,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 01:08:28,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 01:08:28,239 INFO L87 Difference]: Start difference. First operand 1646 states and 2436 transitions. Second operand 7 states. [2018-10-24 01:08:33,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:08:33,114 INFO L93 Difference]: Finished difference Result 4745 states and 7344 transitions. [2018-10-24 01:08:33,124 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-24 01:08:33,124 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 146 [2018-10-24 01:08:33,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:08:33,147 INFO L225 Difference]: With dead ends: 4745 [2018-10-24 01:08:33,148 INFO L226 Difference]: Without dead ends: 2910 [2018-10-24 01:08:33,164 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-10-24 01:08:33,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2910 states. [2018-10-24 01:08:33,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2910 to 2759. [2018-10-24 01:08:33,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2759 states. [2018-10-24 01:08:33,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2759 states to 2759 states and 3982 transitions. [2018-10-24 01:08:33,262 INFO L78 Accepts]: Start accepts. Automaton has 2759 states and 3982 transitions. Word has length 146 [2018-10-24 01:08:33,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:08:33,263 INFO L481 AbstractCegarLoop]: Abstraction has 2759 states and 3982 transitions. [2018-10-24 01:08:33,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 01:08:33,263 INFO L276 IsEmpty]: Start isEmpty. Operand 2759 states and 3982 transitions. [2018-10-24 01:08:33,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2018-10-24 01:08:33,270 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:08:33,270 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 01:08:33,271 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:08:33,271 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:08:33,271 INFO L82 PathProgramCache]: Analyzing trace with hash 1721682631, now seen corresponding path program 1 times [2018-10-24 01:08:33,271 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:08:33,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:08:33,273 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:08:33,273 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:08:33,273 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:08:33,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:08:34,219 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 3 [2018-10-24 01:08:34,310 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-10-24 01:08:34,311 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 01:08:34,311 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 01:08:34,312 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 264 with the following transitions: [2018-10-24 01:08:34,314 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [309], [311], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [594], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [710], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-24 01:08:34,394 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 01:08:34,394 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 01:08:37,339 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 01:08:53,828 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 01:08:53,831 INFO L272 AbstractInterpreter]: Visited 125 different actions 362 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-10-24 01:08:53,881 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:08:53,881 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 01:08:59,076 INFO L232 lantSequenceWeakener]: Weakened 261 states. On average, predicates are now at 73.6% of their original sizes. [2018-10-24 01:08:59,076 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 01:09:00,101 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 01:09:00,102 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 01:09:00,103 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [7] total 17 [2018-10-24 01:09:00,103 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:09:00,104 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-24 01:09:00,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-24 01:09:00,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2018-10-24 01:09:00,104 INFO L87 Difference]: Start difference. First operand 2759 states and 3982 transitions. Second operand 12 states. [2018-10-24 01:10:29,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:10:29,615 INFO L93 Difference]: Finished difference Result 5897 states and 8417 transitions. [2018-10-24 01:10:29,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-24 01:10:29,616 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 263 [2018-10-24 01:10:29,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:10:29,630 INFO L225 Difference]: With dead ends: 5897 [2018-10-24 01:10:29,630 INFO L226 Difference]: Without dead ends: 3144 [2018-10-24 01:10:29,640 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 272 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=115, Invalid=347, Unknown=0, NotChecked=0, Total=462 [2018-10-24 01:10:29,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3144 states. [2018-10-24 01:10:29,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3144 to 3140. [2018-10-24 01:10:29,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3140 states. [2018-10-24 01:10:29,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3140 states to 3140 states and 4394 transitions. [2018-10-24 01:10:29,727 INFO L78 Accepts]: Start accepts. Automaton has 3140 states and 4394 transitions. Word has length 263 [2018-10-24 01:10:29,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:10:29,728 INFO L481 AbstractCegarLoop]: Abstraction has 3140 states and 4394 transitions. [2018-10-24 01:10:29,728 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-24 01:10:29,729 INFO L276 IsEmpty]: Start isEmpty. Operand 3140 states and 4394 transitions. [2018-10-24 01:10:29,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2018-10-24 01:10:29,736 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:10:29,737 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 01:10:29,737 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:10:29,737 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:10:29,737 INFO L82 PathProgramCache]: Analyzing trace with hash 84419219, now seen corresponding path program 1 times [2018-10-24 01:10:29,738 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:10:29,739 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:10:29,739 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:10:29,739 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:10:29,739 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:10:29,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:10:30,080 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-10-24 01:10:30,081 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 01:10:30,081 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 01:10:30,081 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 274 with the following transitions: [2018-10-24 01:10:30,082 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [309], [311], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [594], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [750], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-24 01:10:30,093 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 01:10:30,093 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 01:10:32,203 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 01:10:47,036 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 01:10:47,036 INFO L272 AbstractInterpreter]: Visited 135 different actions 392 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-10-24 01:10:47,041 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:10:47,041 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 01:10:50,898 INFO L232 lantSequenceWeakener]: Weakened 131 states. On average, predicates are now at 74.41% of their original sizes. [2018-10-24 01:10:50,899 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 01:11:08,524 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 01:11:08,525 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 01:11:08,525 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [7] total 26 [2018-10-24 01:11:08,525 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:11:08,527 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-10-24 01:11:08,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-10-24 01:11:08,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2018-10-24 01:11:08,528 INFO L87 Difference]: Start difference. First operand 3140 states and 4394 transitions. Second operand 21 states. Received shutdown request... [2018-10-24 01:12:03,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-24 01:12:03,797 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 01:12:03,804 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 01:12:03,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 01:12:03 BoogieIcfgContainer [2018-10-24 01:12:03,804 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 01:12:03,805 INFO L168 Benchmark]: Toolchain (without parser) took 235783.10 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 3.2 GB in the end (delta: -1.8 GB). Peak memory consumption was 787.8 MB. Max. memory is 7.1 GB. [2018-10-24 01:12:03,806 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 01:12:03,807 INFO L168 Benchmark]: CACSL2BoogieTranslator took 956.53 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. [2018-10-24 01:12:03,808 INFO L168 Benchmark]: Boogie Procedure Inliner took 271.33 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 741.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -822.6 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2018-10-24 01:12:03,809 INFO L168 Benchmark]: Boogie Preprocessor took 133.14 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 01:12:03,809 INFO L168 Benchmark]: RCFGBuilder took 4400.34 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 199.9 MB). Peak memory consumption was 199.9 MB. Max. memory is 7.1 GB. [2018-10-24 01:12:03,810 INFO L168 Benchmark]: TraceAbstraction took 230014.81 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 3.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 616.3 MB. Max. memory is 7.1 GB. [2018-10-24 01:12:03,816 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 956.53 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 271.33 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 741.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -822.6 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 133.14 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 4400.34 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 199.9 MB). Peak memory consumption was 199.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 230014.81 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 3.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 616.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 138]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 138). Cancelled while BasicCegarLoop was constructing difference of abstraction (3140states) and FLOYD_HOARE automaton (currently 9 states, 21 states before enhancement),while ReachableStatesComputation was computing reachable states (91 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 229.9s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 161.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1200 SDtfs, 4493 SDslu, 1481 SDs, 0 SdLazy, 9292 SolverSat, 1715 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 78.2s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 583 GetRequests, 517 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 24.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3140occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 36.5s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9959524800348771 AbsIntWeakeningRatio, 0.10486891385767791 AbsIntAvgWeakeningVarsNumRemoved, 187.93820224719101 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 569 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 982 NumberOfCodeBlocks, 982 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 976 ConstructedInterpolants, 0 QuantifiedInterpolants, 850803 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 316/498 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown