java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-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/Problem17_label01_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 03:51:12,831 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 03:51:12,833 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 03:51:12,846 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 03:51:12,846 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 03:51:12,847 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 03:51:12,848 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 03:51:12,850 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 03:51:12,852 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 03:51:12,852 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 03:51:12,853 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 03:51:12,854 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 03:51:12,854 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 03:51:12,855 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 03:51:12,857 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 03:51:12,857 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 03:51:12,858 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 03:51:12,860 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 03:51:12,862 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 03:51:12,864 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 03:51:12,865 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 03:51:12,866 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 03:51:12,868 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-07 03:51:12,874 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 03:51:12,875 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 03:51:12,876 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 03:51:12,876 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 03:51:12,877 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-07 03:51:12,908 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 03:51:12,908 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 03:51:12,909 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 03:51:12,909 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 03:51:12,909 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 03:51:12,909 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 03:51:12,910 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 03:51:12,910 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 03:51:12,910 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 03:51:12,910 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 03:51:12,910 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 03:51:12,910 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 03:51:12,914 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 03:51:12,914 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 03:51:12,915 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 03:51:12,915 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 03:51:12,915 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 03:51:12,915 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 03:51:12,915 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 03:51:12,917 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 03:51:12,918 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 03:51:12,918 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 03:51:12,918 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 03:51:12,918 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 03:51:12,918 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 03:51:12,919 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 03:51:12,919 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 03:51:12,919 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 03:51:12,919 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 03:51:12,919 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 03:51:12,920 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 03:51:12,920 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 03:51:12,920 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 03:51:12,920 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 03:51:12,988 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 03:51:13,002 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 03:51:13,006 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 03:51:13,008 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 03:51:13,008 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 03:51:13,009 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label01_true-unreach-call.c [2018-11-07 03:51:13,084 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b02d99990/b350a9c85ca24e3c8739b72ef088c367/FLAG1dd3ca481 [2018-11-07 03:51:13,798 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 03:51:13,799 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label01_true-unreach-call.c [2018-11-07 03:51:13,823 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b02d99990/b350a9c85ca24e3c8739b72ef088c367/FLAG1dd3ca481 [2018-11-07 03:51:13,840 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b02d99990/b350a9c85ca24e3c8739b72ef088c367 [2018-11-07 03:51:13,852 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 03:51:13,854 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 03:51:13,855 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 03:51:13,855 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 03:51:13,859 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 03:51:13,860 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:51:13" (1/1) ... [2018-11-07 03:51:13,863 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ab1c4bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:51:13, skipping insertion in model container [2018-11-07 03:51:13,863 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:51:13" (1/1) ... [2018-11-07 03:51:13,874 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 03:51:13,978 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 03:51:14,928 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 03:51:14,934 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 03:51:15,322 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 03:51:15,343 INFO L193 MainTranslator]: Completed translation [2018-11-07 03:51:15,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:51:15 WrapperNode [2018-11-07 03:51:15,344 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 03:51:15,345 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 03:51:15,345 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 03:51:15,345 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 03:51:15,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:51:15" (1/1) ... [2018-11-07 03:51:15,674 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:51:15" (1/1) ... [2018-11-07 03:51:15,682 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 03:51:15,683 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 03:51:15,683 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 03:51:15,683 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 03:51:15,695 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:51:15" (1/1) ... [2018-11-07 03:51:15,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:51:15" (1/1) ... [2018-11-07 03:51:15,708 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:51:15" (1/1) ... [2018-11-07 03:51:15,709 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:51:15" (1/1) ... [2018-11-07 03:51:15,799 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:51:15" (1/1) ... [2018-11-07 03:51:15,820 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:51:15" (1/1) ... [2018-11-07 03:51:15,854 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:51:15" (1/1) ... [2018-11-07 03:51:15,889 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 03:51:15,890 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 03:51:15,890 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 03:51:15,890 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 03:51:15,892 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:51:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-11-07 03:51:15,967 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 03:51:15,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 03:51:15,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 03:51:15,968 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 03:51:15,968 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 03:51:15,968 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 03:51:15,968 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 03:51:15,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 03:51:15,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 03:51:15,969 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 03:51:15,969 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 03:51:25,359 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 03:51:25,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:51:25 BoogieIcfgContainer [2018-11-07 03:51:25,360 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 03:51:25,362 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 03:51:25,362 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 03:51:25,365 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 03:51:25,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:51:13" (1/3) ... [2018-11-07 03:51:25,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bcd9692 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:51:25, skipping insertion in model container [2018-11-07 03:51:25,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:51:15" (2/3) ... [2018-11-07 03:51:25,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bcd9692 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:51:25, skipping insertion in model container [2018-11-07 03:51:25,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:51:25" (3/3) ... [2018-11-07 03:51:25,369 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label01_true-unreach-call.c [2018-11-07 03:51:25,379 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 03:51:25,389 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 03:51:25,408 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 03:51:25,452 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 03:51:25,452 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 03:51:25,452 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 03:51:25,452 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 03:51:25,453 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 03:51:25,453 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 03:51:25,453 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 03:51:25,453 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 03:51:25,488 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-11-07 03:51:25,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-11-07 03:51:25,498 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:51:25,499 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 03:51:25,501 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:51:25,507 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:51:25,508 INFO L82 PathProgramCache]: Analyzing trace with hash -412274706, now seen corresponding path program 1 times [2018-11-07 03:51:25,511 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:51:25,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:51:25,571 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:51:25,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:51:25,572 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:51:25,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:51:26,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:51:26,107 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:51:26,108 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 03:51:26,108 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:51:26,114 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 03:51:26,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 03:51:26,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 03:51:26,136 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-11-07 03:51:37,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:51:37,406 INFO L93 Difference]: Finished difference Result 2139 states and 3961 transitions. [2018-11-07 03:51:37,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 03:51:37,408 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2018-11-07 03:51:37,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:51:37,440 INFO L225 Difference]: With dead ends: 2139 [2018-11-07 03:51:37,440 INFO L226 Difference]: Without dead ends: 1529 [2018-11-07 03:51:37,453 INFO L604 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 [2018-11-07 03:51:37,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529 states. [2018-11-07 03:51:37,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1529 to 1527. [2018-11-07 03:51:37,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1527 states. [2018-11-07 03:51:37,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1527 states to 1527 states and 2413 transitions. [2018-11-07 03:51:37,623 INFO L78 Accepts]: Start accepts. Automaton has 1527 states and 2413 transitions. Word has length 53 [2018-11-07 03:51:37,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:51:37,624 INFO L480 AbstractCegarLoop]: Abstraction has 1527 states and 2413 transitions. [2018-11-07 03:51:37,624 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 03:51:37,625 INFO L276 IsEmpty]: Start isEmpty. Operand 1527 states and 2413 transitions. [2018-11-07 03:51:37,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-11-07 03:51:37,632 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:51:37,633 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 03:51:37,633 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:51:37,633 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:51:37,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1326175065, now seen corresponding path program 1 times [2018-11-07 03:51:37,634 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:51:37,635 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:51:37,635 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:51:37,635 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:51:37,635 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:51:37,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:51:38,088 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:51:38,089 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 03:51:38,089 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 03:51:38,090 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 129 with the following transitions: [2018-11-07 03:51:38,092 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1034], [1036], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-11-07 03:51:38,168 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 03:51:38,169 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 03:51:39,792 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 03:51:58,870 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 03:51:58,872 INFO L272 AbstractInterpreter]: Visited 82 different actions 538 times. Merged at 5 different actions 30 times. Widened at 1 different actions 2 times. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-07 03:51:58,884 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:51:58,884 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 03:52:01,250 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 84.38% of their original sizes. [2018-11-07 03:52:01,252 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 03:52:37,819 INFO L415 sIntCurrentIteration]: We unified 127 AI predicates to 127 [2018-11-07 03:52:37,819 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 03:52:37,820 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 03:52:37,821 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [7] total 24 [2018-11-07 03:52:37,821 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:52:37,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-11-07 03:52:37,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-11-07 03:52:37,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2018-11-07 03:52:37,824 INFO L87 Difference]: Start difference. First operand 1527 states and 2413 transitions. Second operand 19 states. Received shutdown request... [2018-11-07 03:55:21,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-07 03:55:21,761 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 03:55:21,767 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 03:55:21,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 03:55:21 BoogieIcfgContainer [2018-11-07 03:55:21,768 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 03:55:21,769 INFO L168 Benchmark]: Toolchain (without parser) took 247916.10 ms. Allocated memory was 1.5 GB in the beginning and 4.3 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -238.6 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-11-07 03:55:21,771 INFO L168 Benchmark]: CDTParser took 0.22 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. [2018-11-07 03:55:21,771 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1489.65 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: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. [2018-11-07 03:55:21,772 INFO L168 Benchmark]: Boogie Procedure Inliner took 337.80 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 794.3 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -977.1 MB). Peak memory consumption was 42.5 MB. Max. memory is 7.1 GB. [2018-11-07 03:55:21,773 INFO L168 Benchmark]: Boogie Preprocessor took 206.78 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. [2018-11-07 03:55:21,774 INFO L168 Benchmark]: RCFGBuilder took 9470.41 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 477.9 MB). Peak memory consumption was 477.9 MB. Max. memory is 7.1 GB. [2018-11-07 03:55:21,775 INFO L168 Benchmark]: TraceAbstraction took 236406.39 ms. Allocated memory was 2.3 GB in the beginning and 4.3 GB in the end (delta: 1.9 GB). Free memory was 1.8 GB in the beginning and 1.7 GB in the end (delta: 109.6 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-11-07 03:55:21,784 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 1489.65 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: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 337.80 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 794.3 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -977.1 MB). Peak memory consumption was 42.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 206.78 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9470.41 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 477.9 MB). Peak memory consumption was 477.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 236406.39 ms. Allocated memory was 2.3 GB in the beginning and 4.3 GB in the end (delta: 1.9 GB). Free memory was 1.8 GB in the beginning and 1.7 GB in the end (delta: 109.6 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 146]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 146). Cancelled while BasicCegarLoop was constructing difference of abstraction (1527states) and FLOYD_HOARE automaton (currently 20 states, 19 states before enhancement),while ReachableStatesComputation was computing reachable states (552 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 236.3s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 175.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 575 SDtfs, 2178 SDslu, 295 SDs, 0 SdLazy, 4032 SolverSat, 878 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 74.8s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 148 GetRequests, 96 SyntacticMatches, 18 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 45.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1527occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 20.7s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9929860690490613 AbsIntWeakeningRatio, 0.16535433070866143 AbsIntAvgWeakeningVarsNumRemoved, 810.1968503937007 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 181 NumberOfCodeBlocks, 181 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 179 ConstructedInterpolants, 0 QuantifiedInterpolants, 67447 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/46 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown