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/Problem18_label44_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 03:45:33,900 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 03:45:33,908 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 03:45:33,920 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 03:45:33,920 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 03:45:33,921 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 03:45:33,923 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 03:45:33,925 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 03:45:33,926 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 03:45:33,927 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 03:45:33,928 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 03:45:33,928 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 03:45:33,929 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 03:45:33,930 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 03:45:33,932 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 03:45:33,933 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 03:45:33,933 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 03:45:33,935 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 03:45:33,937 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 03:45:33,939 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 03:45:33,943 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 03:45:33,944 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 03:45:33,949 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-27 03:45:33,969 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 [2018-10-27 03:45:34,002 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 03:45:34,002 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 03:45:34,003 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 03:45:34,004 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 03:45:34,004 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 03:45:34,004 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 03:45:34,004 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 03:45:34,004 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 03:45:34,005 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 03:45:34,005 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 03:45:34,005 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 03:45:34,005 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 03:45:34,006 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 03:45:34,007 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 03:45:34,007 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 03:45:34,007 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 03:45:34,007 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 03:45:34,007 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 03:45:34,008 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 03:45:34,008 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 03:45:34,008 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 03:45:34,008 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 03:45:34,008 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 03:45:34,009 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 03:45:34,010 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 03:45:34,010 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 03:45:34,010 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 03:45:34,010 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 03:45:34,011 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 03:45:34,011 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 03:45:34,011 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 03:45:34,011 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 03:45:34,011 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 03:45:34,012 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 03:45:34,077 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 03:45:34,095 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 03:45:34,100 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 03:45:34,102 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 03:45:34,102 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 03:45:34,103 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label44_true-unreach-call.c [2018-10-27 03:45:34,169 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f6ce4708d/3c7207e3f2374910947703ee887a4675/FLAG1485ccca3 [2018-10-27 03:45:34,882 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 03:45:34,883 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label44_true-unreach-call.c [2018-10-27 03:45:34,914 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f6ce4708d/3c7207e3f2374910947703ee887a4675/FLAG1485ccca3 [2018-10-27 03:45:34,934 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f6ce4708d/3c7207e3f2374910947703ee887a4675 [2018-10-27 03:45:34,948 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 03:45:34,950 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 03:45:34,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 03:45:34,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 03:45:34,955 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 03:45:34,956 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:45:34" (1/1) ... [2018-10-27 03:45:34,960 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a6628d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:45:34, skipping insertion in model container [2018-10-27 03:45:34,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:45:34" (1/1) ... [2018-10-27 03:45:34,972 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 03:45:35,112 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 03:45:36,131 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 03:45:36,136 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 03:45:36,624 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 03:45:36,655 INFO L193 MainTranslator]: Completed translation [2018-10-27 03:45:36,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:45:36 WrapperNode [2018-10-27 03:45:36,656 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 03:45:36,657 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 03:45:36,657 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 03:45:36,657 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 03:45:36,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:45:36" (1/1) ... [2018-10-27 03:45:36,738 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:45:36" (1/1) ... [2018-10-27 03:45:37,066 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 03:45:37,067 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 03:45:37,067 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 03:45:37,067 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 03:45:37,079 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:45:36" (1/1) ... [2018-10-27 03:45:37,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:45:36" (1/1) ... [2018-10-27 03:45:37,099 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:45:36" (1/1) ... [2018-10-27 03:45:37,100 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:45:36" (1/1) ... [2018-10-27 03:45:37,201 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:45:36" (1/1) ... [2018-10-27 03:45:37,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:45:36" (1/1) ... [2018-10-27 03:45:37,287 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:45:36" (1/1) ... [2018-10-27 03:45:37,317 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 03:45:37,318 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 03:45:37,318 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 03:45:37,318 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 03:45:37,319 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:45:36" (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 [2018-10-27 03:45:37,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 03:45:37,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 03:45:37,406 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-27 03:45:37,406 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-27 03:45:37,406 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 03:45:37,406 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 03:45:37,407 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 03:45:37,407 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 03:45:37,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 03:45:37,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 03:45:37,408 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 03:45:37,409 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 03:45:45,720 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 03:45:45,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:45:45 BoogieIcfgContainer [2018-10-27 03:45:45,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 03:45:45,722 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 03:45:45,722 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 03:45:45,728 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 03:45:45,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:45:34" (1/3) ... [2018-10-27 03:45:45,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@535952d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:45:45, skipping insertion in model container [2018-10-27 03:45:45,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:45:36" (2/3) ... [2018-10-27 03:45:45,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@535952d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:45:45, skipping insertion in model container [2018-10-27 03:45:45,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:45:45" (3/3) ... [2018-10-27 03:45:45,733 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label44_true-unreach-call.c [2018-10-27 03:45:45,746 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 03:45:45,761 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 03:45:45,781 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 03:45:45,837 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 03:45:45,837 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 03:45:45,837 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 03:45:45,837 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 03:45:45,838 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 03:45:45,838 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 03:45:45,838 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 03:45:45,838 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 03:45:45,886 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-10-27 03:45:45,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-10-27 03:45:45,900 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:45:45,901 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] [2018-10-27 03:45:45,904 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:45:45,910 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:45:45,910 INFO L82 PathProgramCache]: Analyzing trace with hash -1357695353, now seen corresponding path program 1 times [2018-10-27 03:45:45,912 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:45:45,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:45:45,966 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:45:45,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:45:45,967 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:45:46,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:45:46,505 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-10-27 03:45:46,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:45:46,520 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:45:46,521 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 03:45:46,521 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:45:46,526 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 03:45:46,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 03:45:46,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 03:45:46,541 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 4 states. [2018-10-27 03:45:57,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:45:57,006 INFO L93 Difference]: Finished difference Result 2974 states and 5747 transitions. [2018-10-27 03:45:57,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 03:45:57,008 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 39 [2018-10-27 03:45:57,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:45:57,055 INFO L225 Difference]: With dead ends: 2974 [2018-10-27 03:45:57,055 INFO L226 Difference]: Without dead ends: 2193 [2018-10-27 03:45:57,066 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 03:45:57,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2193 states. [2018-10-27 03:45:57,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2193 to 1474. [2018-10-27 03:45:57,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-10-27 03:45:57,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2384 transitions. [2018-10-27 03:45:57,223 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2384 transitions. Word has length 39 [2018-10-27 03:45:57,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:45:57,224 INFO L481 AbstractCegarLoop]: Abstraction has 1474 states and 2384 transitions. [2018-10-27 03:45:57,224 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 03:45:57,225 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2384 transitions. [2018-10-27 03:45:57,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-10-27 03:45:57,231 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:45:57,232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:45:57,232 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:45:57,232 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:45:57,232 INFO L82 PathProgramCache]: Analyzing trace with hash -947150568, now seen corresponding path program 1 times [2018-10-27 03:45:57,233 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:45:57,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:45:57,236 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:45:57,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:45:57,237 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:45:57,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:45:57,513 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:45:57,514 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:45:57,514 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 03:45:57,514 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:45:57,516 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 03:45:57,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 03:45:57,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 03:45:57,517 INFO L87 Difference]: Start difference. First operand 1474 states and 2384 transitions. Second operand 5 states. [2018-10-27 03:46:08,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:46:08,895 INFO L93 Difference]: Finished difference Result 4422 states and 7235 transitions. [2018-10-27 03:46:08,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 03:46:08,896 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 109 [2018-10-27 03:46:08,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:46:08,922 INFO L225 Difference]: With dead ends: 4422 [2018-10-27 03:46:08,922 INFO L226 Difference]: Without dead ends: 2954 [2018-10-27 03:46:08,929 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-27 03:46:08,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2954 states. [2018-10-27 03:46:09,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2954 to 2930. [2018-10-27 03:46:09,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2930 states. [2018-10-27 03:46:09,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2930 states to 2930 states and 4516 transitions. [2018-10-27 03:46:09,040 INFO L78 Accepts]: Start accepts. Automaton has 2930 states and 4516 transitions. Word has length 109 [2018-10-27 03:46:09,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:46:09,041 INFO L481 AbstractCegarLoop]: Abstraction has 2930 states and 4516 transitions. [2018-10-27 03:46:09,041 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 03:46:09,041 INFO L276 IsEmpty]: Start isEmpty. Operand 2930 states and 4516 transitions. [2018-10-27 03:46:09,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-10-27 03:46:09,045 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:46:09,045 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:46:09,045 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:46:09,045 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:46:09,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1923837536, now seen corresponding path program 1 times [2018-10-27 03:46:09,046 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:46:09,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:46:09,047 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:46:09,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:46:09,047 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:46:09,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:46:09,292 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:46:09,293 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:46:09,293 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 03:46:09,293 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:46:09,294 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 03:46:09,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 03:46:09,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 03:46:09,294 INFO L87 Difference]: Start difference. First operand 2930 states and 4516 transitions. Second operand 6 states. [2018-10-27 03:46:18,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:46:18,032 INFO L93 Difference]: Finished difference Result 10279 states and 16084 transitions. [2018-10-27 03:46:18,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 03:46:18,036 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 113 [2018-10-27 03:46:18,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:46:18,094 INFO L225 Difference]: With dead ends: 10279 [2018-10-27 03:46:18,094 INFO L226 Difference]: Without dead ends: 7355 [2018-10-27 03:46:18,115 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 [2018-10-27 03:46:18,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7355 states. [2018-10-27 03:46:18,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7355 to 7296. [2018-10-27 03:46:18,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7296 states. [2018-10-27 03:46:18,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7296 states to 7296 states and 10495 transitions. [2018-10-27 03:46:18,394 INFO L78 Accepts]: Start accepts. Automaton has 7296 states and 10495 transitions. Word has length 113 [2018-10-27 03:46:18,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:46:18,395 INFO L481 AbstractCegarLoop]: Abstraction has 7296 states and 10495 transitions. [2018-10-27 03:46:18,395 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 03:46:18,395 INFO L276 IsEmpty]: Start isEmpty. Operand 7296 states and 10495 transitions. [2018-10-27 03:46:18,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-10-27 03:46:18,398 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:46:18,398 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:46:18,399 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:46:18,400 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:46:18,400 INFO L82 PathProgramCache]: Analyzing trace with hash 397539053, now seen corresponding path program 1 times [2018-10-27 03:46:18,400 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:46:18,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:46:18,401 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:46:18,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:46:18,402 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:46:18,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:46:18,670 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:46:18,671 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:46:18,671 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 03:46:18,671 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:46:18,672 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 03:46:18,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 03:46:18,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 03:46:18,672 INFO L87 Difference]: Start difference. First operand 7296 states and 10495 transitions. Second operand 6 states. [2018-10-27 03:46:26,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:46:26,695 INFO L93 Difference]: Finished difference Result 18993 states and 28013 transitions. [2018-10-27 03:46:26,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 03:46:26,696 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 134 [2018-10-27 03:46:26,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:46:26,756 INFO L225 Difference]: With dead ends: 18993 [2018-10-27 03:46:26,757 INFO L226 Difference]: Without dead ends: 11703 [2018-10-27 03:46:26,798 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 [2018-10-27 03:46:26,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11703 states. [2018-10-27 03:46:27,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11703 to 11639. [2018-10-27 03:46:27,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11639 states. [2018-10-27 03:46:27,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11639 states to 11639 states and 16002 transitions. [2018-10-27 03:46:27,224 INFO L78 Accepts]: Start accepts. Automaton has 11639 states and 16002 transitions. Word has length 134 [2018-10-27 03:46:27,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:46:27,225 INFO L481 AbstractCegarLoop]: Abstraction has 11639 states and 16002 transitions. [2018-10-27 03:46:27,225 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 03:46:27,225 INFO L276 IsEmpty]: Start isEmpty. Operand 11639 states and 16002 transitions. [2018-10-27 03:46:27,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2018-10-27 03:46:27,230 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:46:27,231 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:46:27,231 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:46:27,231 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:46:27,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1776632544, now seen corresponding path program 1 times [2018-10-27 03:46:27,232 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:46:27,233 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:46:27,233 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:46:27,233 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:46:27,233 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:46:27,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:46:27,539 WARN L179 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 03:46:27,765 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:46:27,766 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:46:27,766 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 03:46:27,766 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:46:27,766 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 03:46:27,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 03:46:27,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 03:46:27,767 INFO L87 Difference]: Start difference. First operand 11639 states and 16002 transitions. Second operand 6 states. [2018-10-27 03:46:33,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:46:33,977 INFO L93 Difference]: Finished difference Result 27658 states and 38922 transitions. [2018-10-27 03:46:33,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 03:46:33,978 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 177 [2018-10-27 03:46:33,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:46:34,034 INFO L225 Difference]: With dead ends: 27658 [2018-10-27 03:46:34,035 INFO L226 Difference]: Without dead ends: 16025 [2018-10-27 03:46:34,079 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 03:46:34,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16025 states. [2018-10-27 03:46:34,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16025 to 15947. [2018-10-27 03:46:34,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15947 states. [2018-10-27 03:46:34,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15947 states to 15947 states and 19810 transitions. [2018-10-27 03:46:34,436 INFO L78 Accepts]: Start accepts. Automaton has 15947 states and 19810 transitions. Word has length 177 [2018-10-27 03:46:34,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:46:34,436 INFO L481 AbstractCegarLoop]: Abstraction has 15947 states and 19810 transitions. [2018-10-27 03:46:34,436 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 03:46:34,436 INFO L276 IsEmpty]: Start isEmpty. Operand 15947 states and 19810 transitions. [2018-10-27 03:46:34,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2018-10-27 03:46:34,441 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:46:34,442 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-27 03:46:34,442 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:46:34,442 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:46:34,443 INFO L82 PathProgramCache]: Analyzing trace with hash 952767299, now seen corresponding path program 1 times [2018-10-27 03:46:34,443 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:46:34,443 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:46:34,444 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:46:34,444 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:46:34,444 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:46:34,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:46:34,715 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2018-10-27 03:46:34,716 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:46:34,716 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 03:46:34,716 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:46:34,717 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 03:46:34,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 03:46:34,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 03:46:34,718 INFO L87 Difference]: Start difference. First operand 15947 states and 19810 transitions. Second operand 4 states. [2018-10-27 03:46:42,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:46:42,649 INFO L93 Difference]: Finished difference Result 60752 states and 78092 transitions. [2018-10-27 03:46:42,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 03:46:42,649 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 235 [2018-10-27 03:46:42,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:46:42,821 INFO L225 Difference]: With dead ends: 60752 [2018-10-27 03:46:42,822 INFO L226 Difference]: Without dead ends: 44811 [2018-10-27 03:46:42,891 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 03:46:42,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44811 states. [2018-10-27 03:46:43,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44811 to 44811. [2018-10-27 03:46:43,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44811 states. [2018-10-27 03:46:43,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44811 states to 44811 states and 55159 transitions. [2018-10-27 03:46:43,807 INFO L78 Accepts]: Start accepts. Automaton has 44811 states and 55159 transitions. Word has length 235 [2018-10-27 03:46:43,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:46:43,808 INFO L481 AbstractCegarLoop]: Abstraction has 44811 states and 55159 transitions. [2018-10-27 03:46:43,808 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 03:46:43,808 INFO L276 IsEmpty]: Start isEmpty. Operand 44811 states and 55159 transitions. [2018-10-27 03:46:43,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2018-10-27 03:46:43,834 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:46:43,834 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-27 03:46:43,835 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:46:43,835 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:46:43,835 INFO L82 PathProgramCache]: Analyzing trace with hash -1249259458, now seen corresponding path program 1 times [2018-10-27 03:46:43,835 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:46:43,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:46:43,837 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:46:43,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:46:43,837 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:46:43,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:46:44,174 WARN L179 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 03:46:44,885 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 59 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:46:44,885 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 03:46:44,885 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 03:46:44,887 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 301 with the following transitions: [2018-10-27 03:46:44,889 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1835], [1837], [1840], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2328], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2388], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-10-27 03:46:44,960 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 03:46:44,960 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 03:46:48,287 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 03:46:48,288 INFO L272 AbstractInterpreter]: Visited 143 different actions 143 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-27 03:46:48,298 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:46:48,298 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 03:46:50,765 INFO L227 lantSequenceWeakener]: Weakened 292 states. On average, predicates are now at 77.67% of their original sizes. [2018-10-27 03:46:50,766 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 03:46:51,128 INFO L415 sIntCurrentIteration]: We unified 299 AI predicates to 299 [2018-10-27 03:46:51,129 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 03:46:51,130 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 03:46:51,130 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2018-10-27 03:46:51,130 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:46:51,131 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-27 03:46:51,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-27 03:46:51,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-27 03:46:51,132 INFO L87 Difference]: Start difference. First operand 44811 states and 55159 transitions. Second operand 7 states. [2018-10-27 03:47:00,570 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 03:48:55,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:48:55,289 INFO L93 Difference]: Finished difference Result 90321 states and 111081 transitions. [2018-10-27 03:48:55,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 03:48:55,289 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 300 [2018-10-27 03:48:55,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:48:55,450 INFO L225 Difference]: With dead ends: 90321 [2018-10-27 03:48:55,450 INFO L226 Difference]: Without dead ends: 45516 [2018-10-27 03:48:55,558 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 300 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-27 03:48:55,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45516 states. [2018-10-27 03:48:56,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45516 to 45514. [2018-10-27 03:48:56,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45514 states. [2018-10-27 03:48:56,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45514 states to 45514 states and 55874 transitions. [2018-10-27 03:48:56,339 INFO L78 Accepts]: Start accepts. Automaton has 45514 states and 55874 transitions. Word has length 300 [2018-10-27 03:48:56,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:48:56,340 INFO L481 AbstractCegarLoop]: Abstraction has 45514 states and 55874 transitions. [2018-10-27 03:48:56,340 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-27 03:48:56,340 INFO L276 IsEmpty]: Start isEmpty. Operand 45514 states and 55874 transitions. [2018-10-27 03:48:56,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 488 [2018-10-27 03:48:56,367 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:48:56,368 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:48:56,369 INFO L424 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:48:56,369 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:48:56,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1208177568, now seen corresponding path program 1 times [2018-10-27 03:48:56,369 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:48:56,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:48:56,370 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:48:56,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:48:56,371 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:48:56,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:48:57,127 WARN L179 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-27 03:48:57,378 WARN L179 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-27 03:48:57,815 WARN L179 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-10-27 03:48:58,453 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 155 proven. 320 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-27 03:48:58,453 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 03:48:58,453 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 03:48:58,453 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 488 with the following transitions: [2018-10-27 03:48:58,454 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1835], [1837], [1840], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2328], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2388], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2584], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-10-27 03:48:58,463 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 03:48:58,463 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 03:49:09,967 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 03:49:09,968 INFO L272 AbstractInterpreter]: Visited 196 different actions 386 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-27 03:49:09,978 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:49:09,978 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates Received shutdown request... [2018-10-27 03:49:13,485 INFO L227 lantSequenceWeakener]: Weakened 213 states. On average, predicates are now at 77.66% of their original sizes. [2018-10-27 03:49:13,485 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 03:49:13,593 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 03:49:13,597 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 03:49:13,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:49:13 BoogieIcfgContainer [2018-10-27 03:49:13,598 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 03:49:13,599 INFO L168 Benchmark]: Toolchain (without parser) took 218649.89 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.9 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-10-27 03:49:13,600 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. [2018-10-27 03:49:13,601 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1705.65 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2018-10-27 03:49:13,601 INFO L168 Benchmark]: Boogie Procedure Inliner took 409.78 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 759.2 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -933.1 MB). Peak memory consumption was 45.1 MB. Max. memory is 7.1 GB. [2018-10-27 03:49:13,602 INFO L168 Benchmark]: Boogie Preprocessor took 249.99 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB. [2018-10-27 03:49:13,603 INFO L168 Benchmark]: RCFGBuilder took 8403.73 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 499.5 MB). Peak memory consumption was 499.5 MB. Max. memory is 7.1 GB. [2018-10-27 03:49:13,604 INFO L168 Benchmark]: TraceAbstraction took 207875.74 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 2.9 GB in the end (delta: -1.2 GB). Peak memory consumption was 596.8 MB. Max. memory is 7.1 GB. [2018-10-27 03:49:13,610 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 1705.65 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 409.78 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 759.2 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -933.1 MB). Peak memory consumption was 45.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 249.99 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8403.73 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 499.5 MB). Peak memory consumption was 499.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 207875.74 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 2.9 GB in the end (delta: -1.2 GB). Peak memory consumption was 596.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 105]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 105). Cancelled while BasicCegarLoop was analyzing trace of length 488 with TraceHistMax 4,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 3 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 207.7s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 177.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1932 SDtfs, 15632 SDslu, 1244 SDs, 0 SdLazy, 32569 SolverSat, 7516 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 122.6s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 350 GetRequests, 309 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45514occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 14.9s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9968868272869933 AbsIntWeakeningRatio, 0.07388535031847134 AbsIntAvgWeakeningVarsNumRemoved, 780.0089171974522 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 3.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 946 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 1107 NumberOfCodeBlocks, 1107 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1100 ConstructedInterpolants, 0 QuantifiedInterpolants, 786575 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 340/468 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown