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/Problem16_label33_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 18:46:01,953 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 18:46:01,955 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 18:46:01,967 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 18:46:01,968 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 18:46:01,969 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 18:46:01,970 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 18:46:01,972 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 18:46:01,974 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 18:46:01,974 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 18:46:01,975 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 18:46:01,976 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 18:46:01,977 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 18:46:01,978 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 18:46:01,979 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 18:46:01,979 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 18:46:01,980 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 18:46:01,982 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 18:46:01,984 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 18:46:01,986 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 18:46:01,987 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 18:46:01,988 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 18:46:01,991 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 18:46:01,991 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 18:46:01,991 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 18:46:01,992 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 18:46:01,993 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 18:46:01,994 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 18:46:01,995 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 18:46:01,996 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 18:46:01,996 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 18:46:01,997 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 18:46:01,997 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 18:46:01,997 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 18:46:01,999 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 18:46:01,999 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 18:46:02,000 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 18:46:02,024 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 18:46:02,026 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 18:46:02,027 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 18:46:02,027 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 18:46:02,027 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 18:46:02,027 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 18:46:02,028 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 18:46:02,028 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 18:46:02,028 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 18:46:02,028 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 18:46:02,028 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 18:46:02,029 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 18:46:02,029 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 18:46:02,029 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 18:46:02,031 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 18:46:02,031 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 18:46:02,031 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 18:46:02,031 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 18:46:02,031 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 18:46:02,032 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 18:46:02,032 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 18:46:02,032 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 18:46:02,032 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 18:46:02,032 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 18:46:02,033 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 18:46:02,034 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 18:46:02,034 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 18:46:02,034 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 18:46:02,035 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 18:46:02,035 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 18:46:02,035 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 18:46:02,035 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 18:46:02,035 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 18:46:02,036 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 18:46:02,099 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 18:46:02,113 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 18:46:02,117 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 18:46:02,118 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 18:46:02,119 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 18:46:02,120 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label33_false-unreach-call.c [2018-10-24 18:46:02,181 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e0cd9c49a/8635992c8abc42bca1e14feab8ff4cf0/FLAG296a24a9c [2018-10-24 18:46:02,876 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 18:46:02,877 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label33_false-unreach-call.c [2018-10-24 18:46:02,894 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e0cd9c49a/8635992c8abc42bca1e14feab8ff4cf0/FLAG296a24a9c [2018-10-24 18:46:02,918 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e0cd9c49a/8635992c8abc42bca1e14feab8ff4cf0 [2018-10-24 18:46:02,930 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 18:46:02,932 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 18:46:02,933 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 18:46:02,933 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 18:46:02,937 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 18:46:02,938 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:46:02" (1/1) ... [2018-10-24 18:46:02,941 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b78fa2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:46:02, skipping insertion in model container [2018-10-24 18:46:02,942 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:46:02" (1/1) ... [2018-10-24 18:46:02,952 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 18:46:03,051 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 18:46:03,934 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:46:03,938 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 18:46:04,196 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:46:04,216 INFO L193 MainTranslator]: Completed translation [2018-10-24 18:46:04,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:46:04 WrapperNode [2018-10-24 18:46:04,217 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 18:46:04,218 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 18:46:04,219 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 18:46:04,219 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 18:46:04,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:46:04" (1/1) ... [2018-10-24 18:46:04,277 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:46:04" (1/1) ... [2018-10-24 18:46:04,558 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 18:46:04,559 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 18:46:04,559 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 18:46:04,559 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 18:46:04,571 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:46:04" (1/1) ... [2018-10-24 18:46:04,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:46:04" (1/1) ... [2018-10-24 18:46:04,583 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:46:04" (1/1) ... [2018-10-24 18:46:04,583 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:46:04" (1/1) ... [2018-10-24 18:46:04,635 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:46:04" (1/1) ... [2018-10-24 18:46:04,668 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:46:04" (1/1) ... [2018-10-24 18:46:04,690 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:46:04" (1/1) ... [2018-10-24 18:46:04,707 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 18:46:04,708 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 18:46:04,708 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 18:46:04,708 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 18:46:04,709 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:46:04" (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 18:46:04,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 18:46:04,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 18:46:04,785 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 18:46:04,785 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 18:46:04,785 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 18:46:04,786 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 18:46:04,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 18:46:04,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 18:46:04,786 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 18:46:04,787 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 18:46:11,059 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 18:46:11,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:46:11 BoogieIcfgContainer [2018-10-24 18:46:11,060 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 18:46:11,061 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 18:46:11,061 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 18:46:11,065 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 18:46:11,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:46:02" (1/3) ... [2018-10-24 18:46:11,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a6b40d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:46:11, skipping insertion in model container [2018-10-24 18:46:11,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:46:04" (2/3) ... [2018-10-24 18:46:11,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a6b40d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:46:11, skipping insertion in model container [2018-10-24 18:46:11,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:46:11" (3/3) ... [2018-10-24 18:46:11,069 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label33_false-unreach-call.c [2018-10-24 18:46:11,079 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 18:46:11,089 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 18:46:11,107 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 18:46:11,148 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 18:46:11,149 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 18:46:11,149 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 18:46:11,149 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 18:46:11,149 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 18:46:11,149 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 18:46:11,150 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 18:46:11,150 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 18:46:11,182 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-10-24 18:46:11,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-10-24 18:46:11,190 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:46:11,191 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] [2018-10-24 18:46:11,195 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:46:11,201 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:46:11,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1052664084, now seen corresponding path program 1 times [2018-10-24 18:46:11,204 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:46:11,252 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:46:11,252 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:46:11,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:46:11,253 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:46:11,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:46:11,718 WARN L179 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-10-24 18:46:11,737 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 18:46:11,740 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:46:11,741 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 18:46:11,741 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:46:11,747 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 18:46:11,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 18:46:11,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:46:11,770 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 4 states. [2018-10-24 18:46:18,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:46:18,034 INFO L93 Difference]: Finished difference Result 1513 states and 2838 transitions. [2018-10-24 18:46:18,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 18:46:18,037 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2018-10-24 18:46:18,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:46:18,066 INFO L225 Difference]: With dead ends: 1513 [2018-10-24 18:46:18,067 INFO L226 Difference]: Without dead ends: 1097 [2018-10-24 18:46:18,076 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:46:18,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2018-10-24 18:46:18,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 744. [2018-10-24 18:46:18,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-10-24 18:46:18,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1301 transitions. [2018-10-24 18:46:18,198 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1301 transitions. Word has length 34 [2018-10-24 18:46:18,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:46:18,199 INFO L481 AbstractCegarLoop]: Abstraction has 744 states and 1301 transitions. [2018-10-24 18:46:18,199 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 18:46:18,199 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1301 transitions. [2018-10-24 18:46:18,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-10-24 18:46:18,207 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:46:18,207 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:46:18,207 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:46:18,209 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:46:18,209 INFO L82 PathProgramCache]: Analyzing trace with hash 1349179771, now seen corresponding path program 1 times [2018-10-24 18:46:18,209 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:46:18,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:46:18,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:46:18,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:46:18,211 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:46:18,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:46:18,753 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:46:18,754 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:46:18,754 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 18:46:18,754 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:46:18,756 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 18:46:18,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 18:46:18,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 18:46:18,757 INFO L87 Difference]: Start difference. First operand 744 states and 1301 transitions. Second operand 6 states. [2018-10-24 18:46:23,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:46:23,103 INFO L93 Difference]: Finished difference Result 2196 states and 3924 transitions. [2018-10-24 18:46:23,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:46:23,105 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 105 [2018-10-24 18:46:23,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:46:23,122 INFO L225 Difference]: With dead ends: 2196 [2018-10-24 18:46:23,123 INFO L226 Difference]: Without dead ends: 1458 [2018-10-24 18:46:23,127 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 18:46:23,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1458 states. [2018-10-24 18:46:23,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1458 to 1438. [2018-10-24 18:46:23,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1438 states. [2018-10-24 18:46:23,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1438 states to 1438 states and 2463 transitions. [2018-10-24 18:46:23,223 INFO L78 Accepts]: Start accepts. Automaton has 1438 states and 2463 transitions. Word has length 105 [2018-10-24 18:46:23,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:46:23,224 INFO L481 AbstractCegarLoop]: Abstraction has 1438 states and 2463 transitions. [2018-10-24 18:46:23,224 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 18:46:23,224 INFO L276 IsEmpty]: Start isEmpty. Operand 1438 states and 2463 transitions. [2018-10-24 18:46:23,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-10-24 18:46:23,227 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:46:23,227 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:46:23,227 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:46:23,228 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:46:23,228 INFO L82 PathProgramCache]: Analyzing trace with hash -453464994, now seen corresponding path program 1 times [2018-10-24 18:46:23,228 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:46:23,229 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:46:23,229 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:46:23,229 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:46:23,229 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:46:23,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:46:23,420 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:46:23,420 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:46:23,420 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 18:46:23,420 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:46:23,421 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 18:46:23,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 18:46:23,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 18:46:23,422 INFO L87 Difference]: Start difference. First operand 1438 states and 2463 transitions. Second operand 5 states. [2018-10-24 18:46:28,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:46:28,403 INFO L93 Difference]: Finished difference Result 3597 states and 6200 transitions. [2018-10-24 18:46:28,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:46:28,404 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 106 [2018-10-24 18:46:28,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:46:28,418 INFO L225 Difference]: With dead ends: 3597 [2018-10-24 18:46:28,419 INFO L226 Difference]: Without dead ends: 2165 [2018-10-24 18:46:28,425 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 18:46:28,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2165 states. [2018-10-24 18:46:28,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2165 to 2145. [2018-10-24 18:46:28,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2145 states. [2018-10-24 18:46:28,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2145 states to 2145 states and 3126 transitions. [2018-10-24 18:46:28,496 INFO L78 Accepts]: Start accepts. Automaton has 2145 states and 3126 transitions. Word has length 106 [2018-10-24 18:46:28,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:46:28,497 INFO L481 AbstractCegarLoop]: Abstraction has 2145 states and 3126 transitions. [2018-10-24 18:46:28,497 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 18:46:28,497 INFO L276 IsEmpty]: Start isEmpty. Operand 2145 states and 3126 transitions. [2018-10-24 18:46:28,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2018-10-24 18:46:28,502 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:46:28,502 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:46:28,503 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:46:28,503 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:46:28,503 INFO L82 PathProgramCache]: Analyzing trace with hash -405838746, now seen corresponding path program 1 times [2018-10-24 18:46:28,503 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:46:28,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:46:28,505 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:46:28,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:46:28,505 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:46:28,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:46:28,911 WARN L179 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 18:46:29,331 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:46:29,331 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:46:29,332 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 18:46:29,332 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:46:29,333 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 18:46:29,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 18:46:29,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 18:46:29,336 INFO L87 Difference]: Start difference. First operand 2145 states and 3126 transitions. Second operand 6 states. [2018-10-24 18:46:33,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:46:33,739 INFO L93 Difference]: Finished difference Result 7058 states and 10436 transitions. [2018-10-24 18:46:33,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:46:33,750 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 198 [2018-10-24 18:46:33,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:46:33,780 INFO L225 Difference]: With dead ends: 7058 [2018-10-24 18:46:33,780 INFO L226 Difference]: Without dead ends: 4919 [2018-10-24 18:46:33,800 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 18:46:33,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4919 states. [2018-10-24 18:46:33,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4919 to 4879. [2018-10-24 18:46:33,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4879 states. [2018-10-24 18:46:33,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4879 states to 4879 states and 6857 transitions. [2018-10-24 18:46:33,947 INFO L78 Accepts]: Start accepts. Automaton has 4879 states and 6857 transitions. Word has length 198 [2018-10-24 18:46:33,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:46:33,948 INFO L481 AbstractCegarLoop]: Abstraction has 4879 states and 6857 transitions. [2018-10-24 18:46:33,948 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 18:46:33,948 INFO L276 IsEmpty]: Start isEmpty. Operand 4879 states and 6857 transitions. [2018-10-24 18:46:33,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2018-10-24 18:46:33,955 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:46:33,955 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:46:33,955 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:46:33,956 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:46:33,956 INFO L82 PathProgramCache]: Analyzing trace with hash -295956150, now seen corresponding path program 1 times [2018-10-24 18:46:33,956 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:46:33,957 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:46:33,957 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:46:33,957 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:46:33,957 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:46:34,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:46:34,284 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 18:46:34,743 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:46:34,744 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:46:34,744 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 18:46:34,744 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:46:34,745 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 18:46:34,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 18:46:34,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 18:46:34,746 INFO L87 Difference]: Start difference. First operand 4879 states and 6857 transitions. Second operand 6 states. [2018-10-24 18:46:39,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:46:39,550 INFO L93 Difference]: Finished difference Result 12216 states and 17406 transitions. [2018-10-24 18:46:39,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:46:39,551 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 260 [2018-10-24 18:46:39,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:46:39,594 INFO L225 Difference]: With dead ends: 12216 [2018-10-24 18:46:39,594 INFO L226 Difference]: Without dead ends: 7343 [2018-10-24 18:46:39,626 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 18:46:39,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7343 states. [2018-10-24 18:46:39,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7343 to 7306. [2018-10-24 18:46:39,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7306 states. [2018-10-24 18:46:39,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7306 states to 7306 states and 9825 transitions. [2018-10-24 18:46:39,823 INFO L78 Accepts]: Start accepts. Automaton has 7306 states and 9825 transitions. Word has length 260 [2018-10-24 18:46:39,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:46:39,823 INFO L481 AbstractCegarLoop]: Abstraction has 7306 states and 9825 transitions. [2018-10-24 18:46:39,823 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 18:46:39,824 INFO L276 IsEmpty]: Start isEmpty. Operand 7306 states and 9825 transitions. [2018-10-24 18:46:39,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2018-10-24 18:46:39,837 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:46:39,837 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2018-10-24 18:46:39,838 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:46:39,838 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:46:39,838 INFO L82 PathProgramCache]: Analyzing trace with hash -733672245, now seen corresponding path program 1 times [2018-10-24 18:46:39,838 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:46:39,839 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:46:39,840 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:46:39,841 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:46:39,841 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:46:39,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:46:40,558 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 283 proven. 2 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-10-24 18:46:40,559 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:46:40,559 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:46:40,560 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 390 with the following transitions: [2018-10-24 18:46:40,562 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [351], [353], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [676], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1008], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-10-24 18:46:40,658 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:46:40,659 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:46:44,614 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:46:44,617 INFO L272 AbstractInterpreter]: Visited 160 different actions 160 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-24 18:46:44,632 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:46:44,632 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:46:48,111 INFO L232 lantSequenceWeakener]: Weakened 378 states. On average, predicates are now at 77.53% of their original sizes. [2018-10-24 18:46:48,112 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 18:46:48,772 INFO L413 sIntCurrentIteration]: We have 388 unified AI predicates [2018-10-24 18:46:48,772 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 18:46:48,775 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 18:46:48,775 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2018-10-24 18:46:48,775 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:46:48,776 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-24 18:46:48,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-24 18:46:48,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-10-24 18:46:48,777 INFO L87 Difference]: Start difference. First operand 7306 states and 9825 transitions. Second operand 8 states. [2018-10-24 18:46:52,835 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:47:58,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:47:58,945 INFO L93 Difference]: Finished difference Result 14946 states and 20038 transitions. [2018-10-24 18:47:58,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 18:47:58,945 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 389 [2018-10-24 18:47:58,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:47:58,980 INFO L225 Difference]: With dead ends: 14946 [2018-10-24 18:47:58,980 INFO L226 Difference]: Without dead ends: 7646 [2018-10-24 18:47:59,006 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 390 GetRequests, 382 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-24 18:47:59,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7646 states. [2018-10-24 18:47:59,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7646 to 7644. [2018-10-24 18:47:59,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7644 states. [2018-10-24 18:47:59,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7644 states to 7644 states and 10172 transitions. [2018-10-24 18:47:59,189 INFO L78 Accepts]: Start accepts. Automaton has 7644 states and 10172 transitions. Word has length 389 [2018-10-24 18:47:59,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:47:59,190 INFO L481 AbstractCegarLoop]: Abstraction has 7644 states and 10172 transitions. [2018-10-24 18:47:59,190 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-24 18:47:59,190 INFO L276 IsEmpty]: Start isEmpty. Operand 7644 states and 10172 transitions. [2018-10-24 18:47:59,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2018-10-24 18:47:59,207 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:47:59,207 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 18:47:59,208 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:47:59,208 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:47:59,209 INFO L82 PathProgramCache]: Analyzing trace with hash -319173591, now seen corresponding path program 1 times [2018-10-24 18:47:59,209 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:47:59,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:47:59,210 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:47:59,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:47:59,211 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:47:59,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:47:59,551 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-10-24 18:47:59,909 INFO L134 CoverageAnalysis]: Checked inductivity of 635 backedges. 185 proven. 266 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2018-10-24 18:47:59,909 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:47:59,910 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:47:59,910 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 482 with the following transitions: [2018-10-24 18:47:59,910 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [351], [353], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [676], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1008], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-10-24 18:47:59,921 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:47:59,921 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:48:01,214 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:48:10,439 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:48:10,439 INFO L272 AbstractInterpreter]: Visited 164 different actions 483 times. Merged at 5 different actions 13 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 18:48:10,448 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:48:10,448 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:48:16,249 INFO L232 lantSequenceWeakener]: Weakened 176 states. On average, predicates are now at 77.56% of their original sizes. [2018-10-24 18:48:16,250 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 18:49:26,656 INFO L413 sIntCurrentIteration]: We have 480 unified AI predicates [2018-10-24 18:49:26,656 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 18:49:26,656 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 18:49:26,656 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [7] total 22 [2018-10-24 18:49:26,657 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:49:26,658 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-10-24 18:49:26,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-10-24 18:49:26,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2018-10-24 18:49:26,659 INFO L87 Difference]: Start difference. First operand 7644 states and 10172 transitions. Second operand 17 states. Received shutdown request... [2018-10-24 18:49:49,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-24 18:49:49,961 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 18:49:49,967 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 18:49:49,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 06:49:49 BoogieIcfgContainer [2018-10-24 18:49:49,967 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 18:49:49,968 INFO L168 Benchmark]: Toolchain (without parser) took 227037.38 ms. Allocated memory was 1.5 GB in the beginning and 3.8 GB in the end (delta: 2.3 GB). Free memory was 1.4 GB in the beginning and 3.0 GB in the end (delta: -1.6 GB). Peak memory consumption was 724.4 MB. Max. memory is 7.1 GB. [2018-10-24 18:49:49,970 INFO L168 Benchmark]: CDTParser took 0.20 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 18:49:49,970 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1284.67 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: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-10-24 18:49:49,971 INFO L168 Benchmark]: Boogie Procedure Inliner took 340.35 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 763.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -866.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. [2018-10-24 18:49:49,972 INFO L168 Benchmark]: Boogie Preprocessor took 148.41 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. [2018-10-24 18:49:49,973 INFO L168 Benchmark]: RCFGBuilder took 6352.35 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 265.6 MB). Peak memory consumption was 265.6 MB. Max. memory is 7.1 GB. [2018-10-24 18:49:49,973 INFO L168 Benchmark]: TraceAbstraction took 218906.39 ms. Allocated memory was 2.3 GB in the beginning and 3.8 GB in the end (delta: 1.5 GB). Free memory was 1.9 GB in the beginning and 3.0 GB in the end (delta: -1.0 GB). Peak memory consumption was 474.5 MB. Max. memory is 7.1 GB. [2018-10-24 18:49:49,980 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 1284.67 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: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 340.35 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 763.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -866.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 148.41 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6352.35 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 265.6 MB). Peak memory consumption was 265.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 218906.39 ms. Allocated memory was 2.3 GB in the beginning and 3.8 GB in the end (delta: 1.5 GB). Free memory was 1.9 GB in the beginning and 3.0 GB in the end (delta: -1.0 GB). Peak memory consumption was 474.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 88]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 88). Cancelled while BasicCegarLoop was constructing difference of abstraction (7644states) and FLOYD_HOARE automaton (currently 9 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (68 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 218.8s OverallTime, 7 OverallIterations, 5 TraceHistogramMax, 118.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 958 SDtfs, 8405 SDslu, 916 SDs, 0 SdLazy, 11905 SolverSat, 3724 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 61.9s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 920 GetRequests, 776 SyntacticMatches, 87 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 72.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7644occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 14.6s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9966940492887195 AbsIntWeakeningRatio, 0.08064516129032258 AbsIntAvgWeakeningVarsNumRemoved, 667.9688940092166 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 6 MinimizatonAttempts, 472 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 1573 NumberOfCodeBlocks, 1573 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1566 ConstructedInterpolants, 0 QuantifiedInterpolants, 2127914 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 828/1096 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown