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_label25_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-24 01:52:55,854 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 01:52:55,856 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 01:52:55,868 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 01:52:55,868 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 01:52:55,869 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 01:52:55,870 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 01:52:55,872 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 01:52:55,874 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 01:52:55,875 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 01:52:55,876 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 01:52:55,876 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 01:52:55,877 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 01:52:55,878 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 01:52:55,879 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 01:52:55,880 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 01:52:55,881 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 01:52:55,882 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 01:52:55,884 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 01:52:55,888 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 01:52:55,889 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 01:52:55,890 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 01:52:55,896 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 01:52:55,906 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 01:52:55,921 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 01:52:55,921 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 01:52:55,922 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 01:52:55,922 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 01:52:55,922 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 01:52:55,922 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 01:52:55,923 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 01:52:55,923 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 01:52:55,923 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 01:52:55,923 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 01:52:55,923 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 01:52:55,924 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 01:52:55,924 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 01:52:55,924 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 01:52:55,925 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 01:52:55,925 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 01:52:55,925 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 01:52:55,925 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 01:52:55,925 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 01:52:55,926 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 01:52:55,926 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 01:52:55,926 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 01:52:55,926 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 01:52:55,926 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 01:52:55,927 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 01:52:55,927 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 01:52:55,927 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 01:52:55,927 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 01:52:55,927 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 01:52:55,927 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 01:52:55,928 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 01:52:55,928 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 01:52:55,928 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 01:52:55,928 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 01:52:55,985 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 01:52:56,002 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 01:52:56,006 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 01:52:56,008 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 01:52:56,008 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 01:52:56,009 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label25_true-unreach-call.c [2018-10-24 01:52:56,067 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8e5bf45ac/910c44eeac2a4bff9b301ec0ec4b417a/FLAGc85c70963 [2018-10-24 01:52:56,762 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 01:52:56,765 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label25_true-unreach-call.c [2018-10-24 01:52:56,791 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8e5bf45ac/910c44eeac2a4bff9b301ec0ec4b417a/FLAGc85c70963 [2018-10-24 01:52:56,811 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8e5bf45ac/910c44eeac2a4bff9b301ec0ec4b417a [2018-10-24 01:52:56,823 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 01:52:56,824 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 01:52:56,826 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 01:52:56,826 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 01:52:56,832 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 01:52:56,833 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:52:56" (1/1) ... [2018-10-24 01:52:56,836 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20472c04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:52:56, skipping insertion in model container [2018-10-24 01:52:56,837 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:52:56" (1/1) ... [2018-10-24 01:52:56,849 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 01:52:56,945 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 01:52:57,895 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 01:52:57,900 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 01:52:58,190 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 01:52:58,211 INFO L193 MainTranslator]: Completed translation [2018-10-24 01:52:58,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:52:58 WrapperNode [2018-10-24 01:52:58,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 01:52:58,213 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 01:52:58,213 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 01:52:58,213 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 01:52:58,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:52:58" (1/1) ... [2018-10-24 01:52:58,272 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:52:58" (1/1) ... [2018-10-24 01:52:58,541 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 01:52:58,541 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 01:52:58,541 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 01:52:58,541 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 01:52:58,552 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:52:58" (1/1) ... [2018-10-24 01:52:58,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:52:58" (1/1) ... [2018-10-24 01:52:58,571 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:52:58" (1/1) ... [2018-10-24 01:52:58,571 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:52:58" (1/1) ... [2018-10-24 01:52:58,634 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:52:58" (1/1) ... [2018-10-24 01:52:58,667 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:52:58" (1/1) ... [2018-10-24 01:52:58,684 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:52:58" (1/1) ... [2018-10-24 01:52:58,699 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 01:52:58,700 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 01:52:58,700 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 01:52:58,701 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 01:52:58,702 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:52:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 01:52:58,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 01:52:58,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 01:52:58,765 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 01:52:58,765 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 01:52:58,765 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 01:52:58,765 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 01:52:58,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 01:52:58,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 01:52:58,766 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 01:52:58,766 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 01:53:06,015 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 01:53:06,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:53:06 BoogieIcfgContainer [2018-10-24 01:53:06,017 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 01:53:06,019 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 01:53:06,019 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 01:53:06,023 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 01:53:06,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:52:56" (1/3) ... [2018-10-24 01:53:06,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fc1b97d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:53:06, skipping insertion in model container [2018-10-24 01:53:06,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:52:58" (2/3) ... [2018-10-24 01:53:06,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fc1b97d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:53:06, skipping insertion in model container [2018-10-24 01:53:06,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:53:06" (3/3) ... [2018-10-24 01:53:06,027 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label25_true-unreach-call.c [2018-10-24 01:53:06,038 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 01:53:06,046 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 01:53:06,065 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 01:53:06,109 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 01:53:06,109 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 01:53:06,109 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 01:53:06,109 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 01:53:06,110 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 01:53:06,110 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 01:53:06,110 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 01:53:06,110 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 01:53:06,146 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-10-24 01:53:06,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-10-24 01:53:06,161 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:53:06,162 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, 1, 1, 1, 1] [2018-10-24 01:53:06,164 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:53:06,169 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:53:06,169 INFO L82 PathProgramCache]: Analyzing trace with hash -154170549, now seen corresponding path program 1 times [2018-10-24 01:53:06,171 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:53:06,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:53:06,226 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:53:06,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:53:06,227 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:53:06,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:53:06,659 WARN L179 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 01:53:06,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 01:53:06,781 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 01:53:06,781 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 01:53:06,782 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:53:06,789 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 01:53:06,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 01:53:06,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 01:53:06,812 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 3 states. [2018-10-24 01:53:10,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:53:10,369 INFO L93 Difference]: Finished difference Result 1156 states and 2144 transitions. [2018-10-24 01:53:10,373 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 01:53:10,375 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 57 [2018-10-24 01:53:10,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:53:10,407 INFO L225 Difference]: With dead ends: 1156 [2018-10-24 01:53:10,407 INFO L226 Difference]: Without dead ends: 744 [2018-10-24 01:53:10,421 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 01:53:10,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-10-24 01:53:10,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2018-10-24 01:53:10,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-10-24 01:53:10,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1329 transitions. [2018-10-24 01:53:10,533 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1329 transitions. Word has length 57 [2018-10-24 01:53:10,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:53:10,534 INFO L481 AbstractCegarLoop]: Abstraction has 744 states and 1329 transitions. [2018-10-24 01:53:10,534 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 01:53:10,535 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1329 transitions. [2018-10-24 01:53:10,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2018-10-24 01:53:10,546 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:53:10,546 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 01:53:10,547 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:53:10,547 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:53:10,547 INFO L82 PathProgramCache]: Analyzing trace with hash -190456344, now seen corresponding path program 1 times [2018-10-24 01:53:10,547 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:53:10,549 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:53:10,549 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:53:10,549 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:53:10,549 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:53:10,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:53:11,051 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 01:53:11,052 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 01:53:11,052 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 01:53:11,052 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:53:11,055 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 01:53:11,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 01:53:11,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 01:53:11,056 INFO L87 Difference]: Start difference. First operand 744 states and 1329 transitions. Second operand 6 states. [2018-10-24 01:53:17,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:53:17,770 INFO L93 Difference]: Finished difference Result 2183 states and 3908 transitions. [2018-10-24 01:53:17,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 01:53:17,772 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 165 [2018-10-24 01:53:17,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:53:17,784 INFO L225 Difference]: With dead ends: 2183 [2018-10-24 01:53:17,785 INFO L226 Difference]: Without dead ends: 1445 [2018-10-24 01:53:17,791 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 01:53:17,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2018-10-24 01:53:17,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1424. [2018-10-24 01:53:17,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1424 states. [2018-10-24 01:53:17,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1424 states to 1424 states and 2239 transitions. [2018-10-24 01:53:17,867 INFO L78 Accepts]: Start accepts. Automaton has 1424 states and 2239 transitions. Word has length 165 [2018-10-24 01:53:17,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:53:17,868 INFO L481 AbstractCegarLoop]: Abstraction has 1424 states and 2239 transitions. [2018-10-24 01:53:17,868 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 01:53:17,869 INFO L276 IsEmpty]: Start isEmpty. Operand 1424 states and 2239 transitions. [2018-10-24 01:53:17,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2018-10-24 01:53:17,872 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:53:17,873 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, 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] [2018-10-24 01:53:17,873 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:53:17,873 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:53:17,873 INFO L82 PathProgramCache]: Analyzing trace with hash 2100649045, now seen corresponding path program 1 times [2018-10-24 01:53:17,874 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:53:17,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:53:17,881 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:53:17,881 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:53:17,881 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:53:17,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:53:18,236 WARN L179 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 01:53:18,314 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 01:53:18,314 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 01:53:18,315 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 01:53:18,315 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:53:18,315 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 01:53:18,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 01:53:18,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 01:53:18,316 INFO L87 Difference]: Start difference. First operand 1424 states and 2239 transitions. Second operand 6 states. [2018-10-24 01:53:22,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:53:22,641 INFO L93 Difference]: Finished difference Result 3902 states and 6351 transitions. [2018-10-24 01:53:22,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 01:53:22,642 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 168 [2018-10-24 01:53:22,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:53:22,662 INFO L225 Difference]: With dead ends: 3902 [2018-10-24 01:53:22,663 INFO L226 Difference]: Without dead ends: 2484 [2018-10-24 01:53:22,668 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 01:53:22,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2484 states. [2018-10-24 01:53:22,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2484 to 2474. [2018-10-24 01:53:22,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2474 states. [2018-10-24 01:53:22,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2474 states to 2474 states and 3744 transitions. [2018-10-24 01:53:22,752 INFO L78 Accepts]: Start accepts. Automaton has 2474 states and 3744 transitions. Word has length 168 [2018-10-24 01:53:22,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:53:22,753 INFO L481 AbstractCegarLoop]: Abstraction has 2474 states and 3744 transitions. [2018-10-24 01:53:22,753 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 01:53:22,753 INFO L276 IsEmpty]: Start isEmpty. Operand 2474 states and 3744 transitions. [2018-10-24 01:53:22,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2018-10-24 01:53:22,761 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:53:22,762 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 01:53:22,762 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:53:22,763 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:53:22,763 INFO L82 PathProgramCache]: Analyzing trace with hash 778239368, now seen corresponding path program 1 times [2018-10-24 01:53:22,763 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:53:22,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:53:22,764 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:53:22,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:53:22,764 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:53:22,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:53:23,110 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 100 proven. 106 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 01:53:23,110 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 01:53:23,110 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 01:53:23,111 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 285 with the following transitions: [2018-10-24 01:53:23,114 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], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [535], [537], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [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], [836], [837], [841], [845], [849], [853], [856], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-10-24 01:53:23,190 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 01:53:23,191 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 01:53:26,164 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 01:53:26,166 INFO L272 AbstractInterpreter]: Visited 121 different actions 121 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-24 01:53:26,178 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:53:26,178 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 01:53:28,756 INFO L232 lantSequenceWeakener]: Weakened 276 states. On average, predicates are now at 77.99% of their original sizes. [2018-10-24 01:53:28,757 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 01:53:29,038 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 01:53:29,039 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 01:53:29,039 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-10-24 01:53:29,039 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:53:29,040 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 01:53:29,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 01:53:29,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 01:53:29,041 INFO L87 Difference]: Start difference. First operand 2474 states and 3744 transitions. Second operand 7 states. [2018-10-24 01:53:31,807 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 01:54:24,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:54:24,995 INFO L93 Difference]: Finished difference Result 5282 states and 7967 transitions. [2018-10-24 01:54:24,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 01:54:24,996 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 284 [2018-10-24 01:54:24,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:54:25,011 INFO L225 Difference]: With dead ends: 5282 [2018-10-24 01:54:25,011 INFO L226 Difference]: Without dead ends: 2814 [2018-10-24 01:54:25,019 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 284 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-24 01:54:25,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2814 states. [2018-10-24 01:54:25,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2814 to 2812. [2018-10-24 01:54:25,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2812 states. [2018-10-24 01:54:25,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2812 states to 2812 states and 4089 transitions. [2018-10-24 01:54:25,094 INFO L78 Accepts]: Start accepts. Automaton has 2812 states and 4089 transitions. Word has length 284 [2018-10-24 01:54:25,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:54:25,095 INFO L481 AbstractCegarLoop]: Abstraction has 2812 states and 4089 transitions. [2018-10-24 01:54:25,095 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 01:54:25,095 INFO L276 IsEmpty]: Start isEmpty. Operand 2812 states and 4089 transitions. [2018-10-24 01:54:25,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2018-10-24 01:54:25,103 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:54:25,103 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, 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, 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] [2018-10-24 01:54:25,104 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:54:25,104 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:54:25,104 INFO L82 PathProgramCache]: Analyzing trace with hash 160193259, now seen corresponding path program 1 times [2018-10-24 01:54:25,105 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:54:25,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:54:25,106 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:54:25,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:54:25,106 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:54:25,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:54:25,746 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 245 proven. 110 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2018-10-24 01:54:25,747 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 01:54:25,747 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 01:54:25,747 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 377 with the following transitions: [2018-10-24 01:54:25,748 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], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [535], [537], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [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], [836], [837], [841], [845], [849], [853], [856], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-10-24 01:54:25,758 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 01:54:25,758 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 01:54:27,032 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 01:54:38,137 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 01:54:38,138 INFO L272 AbstractInterpreter]: Visited 125 different actions 481 times. Merged at 5 different actions 14 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 01:54:38,145 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:54:38,145 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 01:54:43,094 INFO L232 lantSequenceWeakener]: Weakened 105 states. On average, predicates are now at 77.53% of their original sizes. [2018-10-24 01:54:43,094 INFO L411 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-10-24 01:56:51,928 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 01:56:51,935 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 01:56:51,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 01:56:51 BoogieIcfgContainer [2018-10-24 01:56:51,936 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 01:56:51,937 INFO L168 Benchmark]: Toolchain (without parser) took 235113.16 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 1.3 GB in the end (delta: 76.0 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. [2018-10-24 01:56:51,938 INFO L168 Benchmark]: CDTParser took 0.20 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 01:56:51,939 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1386.42 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: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-10-24 01:56:51,940 INFO L168 Benchmark]: Boogie Procedure Inliner took 328.17 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 724.0 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -826.7 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. [2018-10-24 01:56:51,941 INFO L168 Benchmark]: Boogie Preprocessor took 158.74 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. [2018-10-24 01:56:51,942 INFO L168 Benchmark]: RCFGBuilder took 7317.18 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.9 GB in the end (delta: 258.1 MB). Peak memory consumption was 258.1 MB. Max. memory is 7.1 GB. [2018-10-24 01:56:51,942 INFO L168 Benchmark]: TraceAbstraction took 225916.77 ms. Allocated memory was 2.2 GB in the beginning and 3.8 GB in the end (delta: 1.6 GB). Free memory was 1.9 GB in the beginning and 1.3 GB in the end (delta: 557.0 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-10-24 01:56:51,948 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 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1386.42 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: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 328.17 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 724.0 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -826.7 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 158.74 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7317.18 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.9 GB in the end (delta: 258.1 MB). Peak memory consumption was 258.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 225916.77 ms. Allocated memory was 2.2 GB in the beginning and 3.8 GB in the end (delta: 1.6 GB). Free memory was 1.9 GB in the beginning and 1.3 GB in the end (delta: 557.0 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 157]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 157). Cancelled while BasicCegarLoop was analyzing trace of length 377 with TraceHistMax 4,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 14 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 225.8s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 70.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 736 SDtfs, 4400 SDslu, 557 SDs, 0 SdLazy, 6512 SolverSat, 2197 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 41.4s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 309 GetRequests, 284 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2812occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 15.4s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9962859565657899 AbsIntWeakeningRatio, 0.08814589665653495 AbsIntAvgWeakeningVarsNumRemoved, 403.1595744680851 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 33 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 674 NumberOfCodeBlocks, 674 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 670 ConstructedInterpolants, 0 QuantifiedInterpolants, 470207 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 205/311 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown