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/Problem14_label54_false-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 18:33:01,827 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 18:33:01,829 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 18:33:01,843 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 18:33:01,843 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 18:33:01,844 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 18:33:01,847 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 18:33:01,849 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 18:33:01,852 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 18:33:01,854 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 18:33:01,857 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 18:33:01,857 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 18:33:01,858 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 18:33:01,861 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 18:33:01,862 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 18:33:01,869 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 18:33:01,870 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 18:33:01,872 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 18:33:01,873 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 18:33:01,875 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 18:33:01,876 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 18:33:01,877 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 18:33:01,879 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 18:33:01,879 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 18:33:01,880 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 18:33:01,880 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 18:33:01,881 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 18:33:01,882 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 18:33:01,883 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 18:33:01,884 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 18:33:01,884 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 18:33:01,885 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-24 18:33:01,887 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 18:33:01,908 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 18:33:01,908 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 18:33:01,910 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 18:33:01,910 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 18:33:01,910 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 18:33:01,910 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 18:33:01,911 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 18:33:01,911 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 18:33:01,911 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 18:33:01,911 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 18:33:01,911 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 18:33:01,911 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 18:33:01,913 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 18:33:01,913 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 18:33:01,913 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 18:33:01,913 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 18:33:01,913 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 18:33:01,914 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 18:33:01,914 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 18:33:01,914 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 18:33:01,914 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 18:33:01,915 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 18:33:01,916 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 18:33:01,917 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 18:33:01,917 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 18:33:01,917 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 18:33:01,917 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 18:33:01,917 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 18:33:01,918 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 18:33:01,918 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 18:33:01,918 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 18:33:01,918 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 18:33:01,919 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 18:33:01,919 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 18:33:01,978 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 18:33:01,992 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 18:33:01,996 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 18:33:01,997 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 18:33:01,998 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 18:33:01,999 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label54_false-unreach-call_false-termination.c [2018-10-24 18:33:02,060 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/6ae042850/a99d793f81a640b589c010a470bee4c0/FLAG7a571d6a4 [2018-10-24 18:33:02,711 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 18:33:02,712 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label54_false-unreach-call_false-termination.c [2018-10-24 18:33:02,731 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/6ae042850/a99d793f81a640b589c010a470bee4c0/FLAG7a571d6a4 [2018-10-24 18:33:02,751 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/6ae042850/a99d793f81a640b589c010a470bee4c0 [2018-10-24 18:33:02,763 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 18:33:02,766 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 18:33:02,768 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 18:33:02,768 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 18:33:02,775 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 18:33:02,776 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:33:02" (1/1) ... [2018-10-24 18:33:02,779 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25131977 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:33:02, skipping insertion in model container [2018-10-24 18:33:02,779 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:33:02" (1/1) ... [2018-10-24 18:33:02,791 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 18:33:02,868 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 18:33:03,359 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:33:03,371 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 18:33:03,575 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:33:03,608 INFO L193 MainTranslator]: Completed translation [2018-10-24 18:33:03,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:33:03 WrapperNode [2018-10-24 18:33:03,609 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 18:33:03,611 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 18:33:03,611 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 18:33:03,611 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 18:33:03,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:33:03" (1/1) ... [2018-10-24 18:33:03,644 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:33:03" (1/1) ... [2018-10-24 18:33:03,863 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 18:33:03,864 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 18:33:03,864 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 18:33:03,864 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 18:33:03,877 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:33:03" (1/1) ... [2018-10-24 18:33:03,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:33:03" (1/1) ... [2018-10-24 18:33:03,891 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:33:03" (1/1) ... [2018-10-24 18:33:03,891 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:33:03" (1/1) ... [2018-10-24 18:33:03,941 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:33:03" (1/1) ... [2018-10-24 18:33:03,966 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:33:03" (1/1) ... [2018-10-24 18:33:03,978 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:33:03" (1/1) ... [2018-10-24 18:33:03,989 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 18:33:03,989 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 18:33:03,990 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 18:33:03,990 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 18:33:03,991 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:33:03" (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 18:33:04,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 18:33:04,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 18:33:04,058 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 18:33:04,058 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 18:33:04,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 18:33:04,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 18:33:04,059 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 18:33:04,059 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 18:33:07,838 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 18:33:07,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:33:07 BoogieIcfgContainer [2018-10-24 18:33:07,840 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 18:33:07,844 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 18:33:07,844 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 18:33:07,847 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 18:33:07,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:33:02" (1/3) ... [2018-10-24 18:33:07,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d8e3fec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:33:07, skipping insertion in model container [2018-10-24 18:33:07,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:33:03" (2/3) ... [2018-10-24 18:33:07,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d8e3fec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:33:07, skipping insertion in model container [2018-10-24 18:33:07,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:33:07" (3/3) ... [2018-10-24 18:33:07,852 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label54_false-unreach-call_false-termination.c [2018-10-24 18:33:07,863 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 18:33:07,872 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 18:33:07,890 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 18:33:07,930 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 18:33:07,931 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 18:33:07,931 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 18:33:07,932 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 18:33:07,932 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 18:33:07,932 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 18:33:07,932 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 18:33:07,932 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 18:33:07,961 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-10-24 18:33:07,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-24 18:33:07,967 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:33:07,968 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:33:07,971 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:33:07,976 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:33:07,977 INFO L82 PathProgramCache]: Analyzing trace with hash -1737204119, now seen corresponding path program 1 times [2018-10-24 18:33:07,979 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:33:08,035 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:33:08,036 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:33:08,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:33:08,036 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:33:08,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:33:08,230 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 18:33:08,232 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:33:08,233 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 18:33:08,233 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:33:08,239 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 18:33:08,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 18:33:08,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 18:33:08,259 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 3 states. [2018-10-24 18:33:10,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:33:10,486 INFO L93 Difference]: Finished difference Result 707 states and 1242 transitions. [2018-10-24 18:33:10,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 18:33:10,488 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-10-24 18:33:10,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:33:10,510 INFO L225 Difference]: With dead ends: 707 [2018-10-24 18:33:10,510 INFO L226 Difference]: Without dead ends: 450 [2018-10-24 18:33:10,521 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 18:33:10,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2018-10-24 18:33:10,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 450. [2018-10-24 18:33:10,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 450 states. [2018-10-24 18:33:10,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 678 transitions. [2018-10-24 18:33:10,633 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 678 transitions. Word has length 13 [2018-10-24 18:33:10,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:33:10,633 INFO L481 AbstractCegarLoop]: Abstraction has 450 states and 678 transitions. [2018-10-24 18:33:10,634 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 18:33:10,634 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 678 transitions. [2018-10-24 18:33:10,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2018-10-24 18:33:10,641 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:33:10,641 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 18:33:10,641 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:33:10,642 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:33:10,642 INFO L82 PathProgramCache]: Analyzing trace with hash 1515047808, now seen corresponding path program 1 times [2018-10-24 18:33:10,642 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:33:10,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:33:10,646 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:33:10,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:33:10,646 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:33:10,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:33:10,973 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:33:10,973 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:33:10,973 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 18:33:10,974 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:33:10,976 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 18:33:10,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 18:33:10,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 18:33:10,977 INFO L87 Difference]: Start difference. First operand 450 states and 678 transitions. Second operand 3 states. [2018-10-24 18:33:12,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:33:12,630 INFO L93 Difference]: Finished difference Result 1260 states and 1959 transitions. [2018-10-24 18:33:12,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 18:33:12,635 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 97 [2018-10-24 18:33:12,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:33:12,642 INFO L225 Difference]: With dead ends: 1260 [2018-10-24 18:33:12,642 INFO L226 Difference]: Without dead ends: 816 [2018-10-24 18:33:12,646 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 18:33:12,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2018-10-24 18:33:12,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 816. [2018-10-24 18:33:12,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 816 states. [2018-10-24 18:33:12,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 1139 transitions. [2018-10-24 18:33:12,691 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 1139 transitions. Word has length 97 [2018-10-24 18:33:12,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:33:12,692 INFO L481 AbstractCegarLoop]: Abstraction has 816 states and 1139 transitions. [2018-10-24 18:33:12,692 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 18:33:12,692 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 1139 transitions. [2018-10-24 18:33:12,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-10-24 18:33:12,698 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:33:12,698 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 18:33:12,699 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:33:12,699 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:33:12,699 INFO L82 PathProgramCache]: Analyzing trace with hash -966929960, now seen corresponding path program 1 times [2018-10-24 18:33:12,700 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:33:12,701 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:33:12,701 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:33:12,701 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:33:12,702 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:33:12,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:33:12,996 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:33:12,997 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:33:12,997 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:33:12,998 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 110 with the following transitions: [2018-10-24 18:33:13,001 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [7], [10], [18], [26], [34], [42], [50], [58], [66], [74], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [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], [595], [598], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-10-24 18:33:13,077 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:33:13,077 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:33:15,014 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:33:15,016 INFO L272 AbstractInterpreter]: Visited 100 different actions 100 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-24 18:33:15,027 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:33:15,027 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:33:16,338 INFO L232 lantSequenceWeakener]: Weakened 104 states. On average, predicates are now at 77.18% of their original sizes. [2018-10-24 18:33:16,338 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 18:33:16,764 INFO L413 sIntCurrentIteration]: We have 108 unified AI predicates [2018-10-24 18:33:16,764 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 18:33:16,765 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 18:33:16,766 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-10-24 18:33:16,766 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:33:16,766 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 18:33:16,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 18:33:16,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 18:33:16,767 INFO L87 Difference]: Start difference. First operand 816 states and 1139 transitions. Second operand 7 states. [2018-10-24 18:33:18,739 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:33:31,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:33:31,289 INFO L93 Difference]: Finished difference Result 1811 states and 2515 transitions. [2018-10-24 18:33:31,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:33:31,289 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 109 [2018-10-24 18:33:31,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:33:31,295 INFO L225 Difference]: With dead ends: 1811 [2018-10-24 18:33:31,296 INFO L226 Difference]: Without dead ends: 1001 [2018-10-24 18:33:31,298 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 109 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-24 18:33:31,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2018-10-24 18:33:31,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 999. [2018-10-24 18:33:31,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 999 states. [2018-10-24 18:33:31,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 999 states to 999 states and 1330 transitions. [2018-10-24 18:33:31,332 INFO L78 Accepts]: Start accepts. Automaton has 999 states and 1330 transitions. Word has length 109 [2018-10-24 18:33:31,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:33:31,332 INFO L481 AbstractCegarLoop]: Abstraction has 999 states and 1330 transitions. [2018-10-24 18:33:31,332 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 18:33:31,333 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states and 1330 transitions. [2018-10-24 18:33:31,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2018-10-24 18:33:31,345 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:33:31,345 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-10-24 18:33:31,346 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:33:31,346 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:33:31,346 INFO L82 PathProgramCache]: Analyzing trace with hash -1447044886, now seen corresponding path program 1 times [2018-10-24 18:33:31,346 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:33:31,347 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:33:31,347 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:33:31,347 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:33:31,348 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:33:31,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:33:32,121 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-10-24 18:33:32,619 WARN L179 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2018-10-24 18:33:32,855 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 95 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:33:32,855 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:33:32,855 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:33:32,855 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 195 with the following transitions: [2018-10-24 18:33:32,856 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [7], [10], [18], [26], [34], [42], [50], [58], [66], [74], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [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], [554], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [598], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-10-24 18:33:32,861 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:33:32,862 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:33:36,277 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:33:36,278 INFO L272 AbstractInterpreter]: Visited 104 different actions 201 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 18:33:36,287 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:33:36,287 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:33:38,191 INFO L232 lantSequenceWeakener]: Weakened 57 states. On average, predicates are now at 77.73% of their original sizes. [2018-10-24 18:33:38,191 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 18:34:00,139 INFO L413 sIntCurrentIteration]: We have 193 unified AI predicates [2018-10-24 18:34:00,139 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 18:34:00,140 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 18:34:00,140 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [12] total 30 [2018-10-24 18:34:00,140 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:34:00,141 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-10-24 18:34:00,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-10-24 18:34:00,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2018-10-24 18:34:00,142 INFO L87 Difference]: Start difference. First operand 999 states and 1330 transitions. Second operand 20 states. [2018-10-24 18:35:14,172 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-24 18:37:14,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-10-24 18:37:14,759 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 18:37:14,766 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 18:37:14,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 06:37:14 BoogieIcfgContainer [2018-10-24 18:37:14,766 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 18:37:14,767 INFO L168 Benchmark]: Toolchain (without parser) took 252003.10 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 2.7 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-10-24 18:37:14,768 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 18:37:14,769 INFO L168 Benchmark]: CACSL2BoogieTranslator took 842.62 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-10-24 18:37:14,770 INFO L168 Benchmark]: Boogie Procedure Inliner took 253.14 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 691.0 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -788.0 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2018-10-24 18:37:14,771 INFO L168 Benchmark]: Boogie Preprocessor took 125.03 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. [2018-10-24 18:37:14,771 INFO L168 Benchmark]: RCFGBuilder took 3850.33 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 123.8 MB). Peak memory consumption was 123.8 MB. Max. memory is 7.1 GB. [2018-10-24 18:37:14,772 INFO L168 Benchmark]: TraceAbstraction took 246925.65 ms. Allocated memory was 2.2 GB in the beginning and 4.0 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 2.7 GB in the end (delta: -739.7 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-10-24 18:37:14,778 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 842.62 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 253.14 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 691.0 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -788.0 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 125.03 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3850.33 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 123.8 MB). Peak memory consumption was 123.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 246925.65 ms. Allocated memory was 2.2 GB in the beginning and 4.0 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 2.7 GB in the end (delta: -739.7 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 22]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 22). Cancelled while BasicCegarLoop was constructing difference of abstraction (999states) and FLOYD_HOARE automaton (currently 23 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (2818 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. TIMEOUT Result, 246.8s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 213.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1095 SDtfs, 3472 SDslu, 623 SDs, 0 SdLazy, 5093 SolverSat, 587 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 89.3s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 318 GetRequests, 265 SyntacticMatches, 20 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 24.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=999occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 5.4s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9932952958736578 AbsIntWeakeningRatio, 0.15282392026578073 AbsIntAvgWeakeningVarsNumRemoved, 549.6976744186046 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 413 NumberOfCodeBlocks, 413 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 409 ConstructedInterpolants, 0 QuantifiedInterpolants, 870083 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 101/109 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown