java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label01_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 09:22:19,722 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 09:22:19,732 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 09:22:19,749 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 09:22:19,749 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 09:22:19,751 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 09:22:19,753 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 09:22:19,756 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 09:22:19,758 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 09:22:19,759 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 09:22:19,769 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 09:22:19,769 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 09:22:19,770 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 09:22:19,775 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 09:22:19,776 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 09:22:19,777 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 09:22:19,780 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 09:22:19,786 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 09:22:19,788 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 09:22:19,793 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 09:22:19,794 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 09:22:19,795 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 09:22:19,797 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-07 09:22:19,805 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-11-07 09:22:19,820 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 09:22:19,820 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 09:22:19,821 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 09:22:19,821 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 09:22:19,822 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 09:22:19,822 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 09:22:19,822 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-07 09:22:19,822 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 09:22:19,822 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 09:22:19,823 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 09:22:19,823 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 09:22:19,823 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 09:22:19,823 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 09:22:19,823 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 09:22:19,824 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 09:22:19,824 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 09:22:19,824 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 09:22:19,825 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 09:22:19,825 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 09:22:19,825 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 09:22:19,825 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 09:22:19,825 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 09:22:19,826 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 09:22:19,826 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 09:22:19,826 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 09:22:19,826 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 09:22:19,826 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 09:22:19,827 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 09:22:19,827 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 09:22:19,827 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 09:22:19,827 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 09:22:19,827 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 09:22:19,827 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 09:22:19,828 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 09:22:19,828 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 09:22:19,828 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 09:22:19,871 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 09:22:19,888 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 09:22:19,892 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 09:22:19,894 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 09:22:19,894 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 09:22:19,895 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label01_true-unreach-call.c [2018-11-07 09:22:19,962 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4165ea2d5/88ba956de4b54d96ab615608717bc669/FLAGcc0998148 [2018-11-07 09:22:20,732 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 09:22:20,733 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label01_true-unreach-call.c [2018-11-07 09:22:20,761 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4165ea2d5/88ba956de4b54d96ab615608717bc669/FLAGcc0998148 [2018-11-07 09:22:20,786 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4165ea2d5/88ba956de4b54d96ab615608717bc669 [2018-11-07 09:22:20,800 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 09:22:20,802 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 09:22:20,805 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 09:22:20,805 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 09:22:20,809 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 09:22:20,810 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:22:20" (1/1) ... [2018-11-07 09:22:20,814 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cedeeed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:22:20, skipping insertion in model container [2018-11-07 09:22:20,814 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:22:20" (1/1) ... [2018-11-07 09:22:20,825 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 09:22:20,948 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 09:22:21,971 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 09:22:21,976 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 09:22:22,380 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 09:22:22,402 INFO L193 MainTranslator]: Completed translation [2018-11-07 09:22:22,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:22:22 WrapperNode [2018-11-07 09:22:22,403 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 09:22:22,404 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 09:22:22,404 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 09:22:22,405 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 09:22:22,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:22:22" (1/1) ... [2018-11-07 09:22:22,701 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:22:22" (1/1) ... [2018-11-07 09:22:22,711 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 09:22:22,712 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 09:22:22,712 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 09:22:22,712 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 09:22:22,723 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:22:22" (1/1) ... [2018-11-07 09:22:22,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:22:22" (1/1) ... [2018-11-07 09:22:22,736 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:22:22" (1/1) ... [2018-11-07 09:22:22,736 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:22:22" (1/1) ... [2018-11-07 09:22:22,822 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:22:22" (1/1) ... [2018-11-07 09:22:22,857 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:22:22" (1/1) ... [2018-11-07 09:22:22,891 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:22:22" (1/1) ... [2018-11-07 09:22:22,924 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 09:22:22,925 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 09:22:22,925 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 09:22:22,925 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 09:22:22,927 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:22:22" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 09:22:22,989 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 09:22:22,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 09:22:22,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 09:22:22,989 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 09:22:22,990 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 09:22:22,990 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 09:22:22,990 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 09:22:22,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 09:22:22,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 09:22:22,991 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 09:22:22,991 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 09:22:31,060 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 09:22:31,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:22:31 BoogieIcfgContainer [2018-11-07 09:22:31,062 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 09:22:31,063 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 09:22:31,063 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 09:22:31,066 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 09:22:31,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 09:22:20" (1/3) ... [2018-11-07 09:22:31,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54529a09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:22:31, skipping insertion in model container [2018-11-07 09:22:31,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:22:22" (2/3) ... [2018-11-07 09:22:31,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54529a09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:22:31, skipping insertion in model container [2018-11-07 09:22:31,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:22:31" (3/3) ... [2018-11-07 09:22:31,070 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label01_true-unreach-call.c [2018-11-07 09:22:31,080 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 09:22:31,089 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 09:22:31,107 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 09:22:31,148 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 09:22:31,148 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 09:22:31,148 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 09:22:31,148 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 09:22:31,148 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 09:22:31,149 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 09:22:31,149 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 09:22:31,149 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 09:22:31,184 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-11-07 09:22:31,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-11-07 09:22:31,194 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:22:31,195 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 09:22:31,197 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:22:31,203 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:22:31,203 INFO L82 PathProgramCache]: Analyzing trace with hash -412274706, now seen corresponding path program 1 times [2018-11-07 09:22:31,206 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:22:31,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:22:31,260 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:22:31,260 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:22:31,260 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:22:31,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:22:31,763 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 5 [2018-11-07 09:22:31,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:22:31,800 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:22:31,801 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 09:22:31,801 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:22:31,807 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 09:22:31,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 09:22:31,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 09:22:31,826 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-11-07 09:22:42,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:22:42,685 INFO L93 Difference]: Finished difference Result 2139 states and 3961 transitions. [2018-11-07 09:22:42,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 09:22:42,686 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2018-11-07 09:22:42,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:22:42,718 INFO L225 Difference]: With dead ends: 2139 [2018-11-07 09:22:42,718 INFO L226 Difference]: Without dead ends: 1529 [2018-11-07 09:22:42,730 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 09:22:42,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529 states. [2018-11-07 09:22:42,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1529 to 1527. [2018-11-07 09:22:42,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1527 states. [2018-11-07 09:22:42,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1527 states to 1527 states and 2413 transitions. [2018-11-07 09:22:42,913 INFO L78 Accepts]: Start accepts. Automaton has 1527 states and 2413 transitions. Word has length 53 [2018-11-07 09:22:42,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:22:42,913 INFO L480 AbstractCegarLoop]: Abstraction has 1527 states and 2413 transitions. [2018-11-07 09:22:42,915 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 09:22:42,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1527 states and 2413 transitions. [2018-11-07 09:22:42,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-11-07 09:22:42,928 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:22:42,929 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 09:22:42,929 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:22:42,929 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:22:42,929 INFO L82 PathProgramCache]: Analyzing trace with hash 1326175065, now seen corresponding path program 1 times [2018-11-07 09:22:42,930 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:22:42,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:22:42,932 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:22:42,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:22:42,932 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:22:43,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:22:43,612 WARN L179 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 12 [2018-11-07 09:22:43,869 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:22:43,869 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:22:43,870 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 09:22:43,871 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 129 with the following transitions: [2018-11-07 09:22:43,873 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1034], [1036], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-11-07 09:22:43,929 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 09:22:43,930 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 09:22:45,104 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 09:22:45,107 INFO L272 AbstractInterpreter]: Visited 83 different actions 235 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-07 09:22:45,149 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:22:45,151 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 09:22:45,151 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:22:45,152 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 09:22:45,168 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:22:45,169 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 09:22:45,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:22:45,271 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 09:23:01,562 WARN L179 SmtUtils]: Spent 15.73 s on a formula simplification. DAG size of input: 135 DAG size of output: 83 [2018-11-07 09:23:01,834 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:23:01,834 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 09:23:02,523 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 28 [2018-11-07 09:23:03,069 WARN L179 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 26 [2018-11-07 09:23:03,407 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:23:03,440 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-07 09:23:03,440 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 13 [2018-11-07 09:23:03,441 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:23:03,441 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 09:23:03,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 09:23:03,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-11-07 09:23:03,442 INFO L87 Difference]: Start difference. First operand 1527 states and 2413 transitions. Second operand 6 states. [2018-11-07 09:23:22,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:23:22,185 INFO L93 Difference]: Finished difference Result 5757 states and 9373 transitions. [2018-11-07 09:23:22,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 09:23:22,189 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 128 [2018-11-07 09:23:22,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:23:22,219 INFO L225 Difference]: With dead ends: 5757 [2018-11-07 09:23:22,219 INFO L226 Difference]: Without dead ends: 4236 [2018-11-07 09:23:22,230 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 251 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 17.9s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-11-07 09:23:22,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4236 states. [2018-11-07 09:23:22,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4236 to 4200. [2018-11-07 09:23:22,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4200 states. [2018-11-07 09:23:22,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4200 states to 4200 states and 6644 transitions. [2018-11-07 09:23:22,377 INFO L78 Accepts]: Start accepts. Automaton has 4200 states and 6644 transitions. Word has length 128 [2018-11-07 09:23:22,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:23:22,377 INFO L480 AbstractCegarLoop]: Abstraction has 4200 states and 6644 transitions. [2018-11-07 09:23:22,378 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 09:23:22,380 INFO L276 IsEmpty]: Start isEmpty. Operand 4200 states and 6644 transitions. [2018-11-07 09:23:22,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2018-11-07 09:23:22,393 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:23:22,393 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, 2, 2, 2, 2, 2, 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] [2018-11-07 09:23:22,393 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:23:22,394 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:23:22,397 INFO L82 PathProgramCache]: Analyzing trace with hash -385017723, now seen corresponding path program 1 times [2018-11-07 09:23:22,398 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:23:22,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:23:22,399 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:23:22,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:23:22,399 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:23:22,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:23:22,790 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 93 proven. 7 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-11-07 09:23:22,791 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:23:22,791 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 09:23:22,791 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 212 with the following transitions: [2018-11-07 09:23:22,792 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1034], [1036], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1262], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-11-07 09:23:22,800 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 09:23:22,801 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 09:23:23,464 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 09:23:23,465 INFO L272 AbstractInterpreter]: Visited 92 different actions 262 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-07 09:23:23,495 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:23:23,495 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 09:23:23,495 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:23:23,495 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 09:23:23,509 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:23:23,509 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 09:23:23,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:23:23,604 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 09:23:24,020 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 165 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:23:24,021 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 09:23:24,168 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-07 09:23:24,965 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 165 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:23:24,985 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 09:23:24,985 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-11-07 09:23:24,985 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 09:23:24,986 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-07 09:23:24,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-07 09:23:24,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-07 09:23:24,987 INFO L87 Difference]: Start difference. First operand 4200 states and 6644 transitions. Second operand 9 states. [2018-11-07 09:23:31,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:23:31,788 INFO L93 Difference]: Finished difference Result 15986 states and 26546 transitions. [2018-11-07 09:23:31,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-07 09:23:31,789 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 211 [2018-11-07 09:23:31,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:23:31,864 INFO L225 Difference]: With dead ends: 15986 [2018-11-07 09:23:31,865 INFO L226 Difference]: Without dead ends: 11792 [2018-11-07 09:23:31,891 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 420 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2018-11-07 09:23:31,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11792 states. [2018-11-07 09:23:32,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11792 to 11769. [2018-11-07 09:23:32,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11769 states. [2018-11-07 09:23:32,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11769 states to 11769 states and 16730 transitions. [2018-11-07 09:23:32,210 INFO L78 Accepts]: Start accepts. Automaton has 11769 states and 16730 transitions. Word has length 211 [2018-11-07 09:23:32,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:23:32,211 INFO L480 AbstractCegarLoop]: Abstraction has 11769 states and 16730 transitions. [2018-11-07 09:23:32,211 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-07 09:23:32,212 INFO L276 IsEmpty]: Start isEmpty. Operand 11769 states and 16730 transitions. [2018-11-07 09:23:32,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2018-11-07 09:23:32,220 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:23:32,221 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 09:23:32,221 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:23:32,221 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:23:32,222 INFO L82 PathProgramCache]: Analyzing trace with hash -1931953849, now seen corresponding path program 1 times [2018-11-07 09:23:32,222 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:23:32,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:23:32,223 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:23:32,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:23:32,223 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:23:32,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:23:32,636 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 118 proven. 54 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-07 09:23:32,636 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:23:32,636 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 09:23:32,636 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 229 with the following transitions: [2018-11-07 09:23:32,637 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1034], [1036], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1278], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-11-07 09:23:32,641 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 09:23:32,641 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 09:23:32,867 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 09:23:32,867 INFO L272 AbstractInterpreter]: Visited 97 different actions 190 times. Merged at 7 different actions 8 times. Never widened. Found 2 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-07 09:23:32,905 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:23:32,905 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 09:23:32,905 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:23:32,905 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 09:23:32,923 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:23:32,923 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 09:23:32,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:23:33,002 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 09:23:33,178 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-11-07 09:23:33,179 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 09:23:33,457 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-11-07 09:23:33,477 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-07 09:23:33,477 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 8 [2018-11-07 09:23:33,477 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:23:33,478 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 09:23:33,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 09:23:33,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-07 09:23:33,479 INFO L87 Difference]: Start difference. First operand 11769 states and 16730 transitions. Second operand 3 states. [2018-11-07 09:23:36,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:23:36,430 INFO L93 Difference]: Finished difference Result 23532 states and 33454 transitions. [2018-11-07 09:23:36,433 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 09:23:36,433 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 228 [2018-11-07 09:23:36,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:23:36,500 INFO L225 Difference]: With dead ends: 23532 [2018-11-07 09:23:36,501 INFO L226 Difference]: Without dead ends: 11769 [2018-11-07 09:23:36,557 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 456 SyntacticMatches, 5 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-07 09:23:36,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11769 states. [2018-11-07 09:23:36,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11769 to 11769. [2018-11-07 09:23:36,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11769 states. [2018-11-07 09:23:36,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11769 states to 11769 states and 15893 transitions. [2018-11-07 09:23:36,818 INFO L78 Accepts]: Start accepts. Automaton has 11769 states and 15893 transitions. Word has length 228 [2018-11-07 09:23:36,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:23:36,819 INFO L480 AbstractCegarLoop]: Abstraction has 11769 states and 15893 transitions. [2018-11-07 09:23:36,819 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 09:23:36,819 INFO L276 IsEmpty]: Start isEmpty. Operand 11769 states and 15893 transitions. [2018-11-07 09:23:36,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2018-11-07 09:23:36,831 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:23:36,832 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 09:23:36,832 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:23:36,832 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:23:36,832 INFO L82 PathProgramCache]: Analyzing trace with hash 1967517566, now seen corresponding path program 1 times [2018-11-07 09:23:36,832 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:23:36,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:23:36,833 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:23:36,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:23:36,834 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:23:36,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:23:37,504 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 314 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-11-07 09:23:37,504 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:23:37,504 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 09:23:37,505 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 328 with the following transitions: [2018-11-07 09:23:37,505 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1034], [1036], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1278], [1279], [1282], [1283], [1287], [1291], [1295], [1299], [1303], [1307], [1318], [1322], [1326], [1330], [1333], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-11-07 09:23:37,509 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 09:23:37,509 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 09:23:37,815 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 09:23:37,816 INFO L272 AbstractInterpreter]: Visited 109 different actions 220 times. Merged at 8 different actions 14 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 26 variables. [2018-11-07 09:23:37,849 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:23:37,849 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 09:23:37,849 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:23:37,850 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 09:23:37,867 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:23:37,867 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 09:23:37,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:23:37,971 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 09:23:38,163 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 314 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-11-07 09:23:38,164 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 09:23:38,661 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 314 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-11-07 09:23:38,681 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 09:23:38,682 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 8 [2018-11-07 09:23:38,682 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 09:23:38,683 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-07 09:23:38,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-07 09:23:38,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-11-07 09:23:38,684 INFO L87 Difference]: Start difference. First operand 11769 states and 15893 transitions. Second operand 7 states. [2018-11-07 09:23:47,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:23:47,486 INFO L93 Difference]: Finished difference Result 30049 states and 41759 transitions. [2018-11-07 09:23:47,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-07 09:23:47,488 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 327 [2018-11-07 09:23:47,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:23:47,557 INFO L225 Difference]: With dead ends: 30049 [2018-11-07 09:23:47,557 INFO L226 Difference]: Without dead ends: 17819 [2018-11-07 09:23:47,585 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 669 GetRequests, 656 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2018-11-07 09:23:47,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17819 states. [2018-11-07 09:23:47,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17819 to 16799. [2018-11-07 09:23:47,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16799 states. [2018-11-07 09:23:47,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16799 states to 16799 states and 21466 transitions. [2018-11-07 09:23:47,929 INFO L78 Accepts]: Start accepts. Automaton has 16799 states and 21466 transitions. Word has length 327 [2018-11-07 09:23:47,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:23:47,929 INFO L480 AbstractCegarLoop]: Abstraction has 16799 states and 21466 transitions. [2018-11-07 09:23:47,929 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-07 09:23:47,930 INFO L276 IsEmpty]: Start isEmpty. Operand 16799 states and 21466 transitions. [2018-11-07 09:23:47,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2018-11-07 09:23:47,943 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:23:47,944 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 09:23:47,944 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:23:47,944 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:23:47,944 INFO L82 PathProgramCache]: Analyzing trace with hash 670201538, now seen corresponding path program 1 times [2018-11-07 09:23:47,945 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:23:47,945 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:23:47,945 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:23:47,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:23:47,946 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:23:48,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:23:48,981 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 150 proven. 258 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 09:23:48,982 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:23:48,982 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 09:23:48,982 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 351 with the following transitions: [2018-11-07 09:23:48,983 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1034], [1036], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [1283], [1287], [1291], [1295], [1299], [1303], [1307], [1318], [1322], [1326], [1330], [1333], [1334], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-11-07 09:23:48,987 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 09:23:48,987 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 09:23:49,514 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 09:23:49,514 INFO L272 AbstractInterpreter]: Visited 120 different actions 242 times. Merged at 8 different actions 14 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 26 variables. [2018-11-07 09:23:49,552 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:23:49,552 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 09:23:49,552 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:23:49,552 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 09:23:49,565 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:23:49,565 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 09:23:49,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:23:49,666 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 09:23:50,165 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 364 proven. 2 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2018-11-07 09:23:50,166 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 09:23:50,602 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2018-11-07 09:23:51,210 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 09:23:51,930 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 144 proven. 264 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 09:23:51,952 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 09:23:51,953 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 20 [2018-11-07 09:23:51,953 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 09:23:51,954 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-07 09:23:51,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-07 09:23:51,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2018-11-07 09:23:51,954 INFO L87 Difference]: Start difference. First operand 16799 states and 21466 transitions. Second operand 15 states. [2018-11-07 09:24:14,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:24:14,250 INFO L93 Difference]: Finished difference Result 49066 states and 66617 transitions. [2018-11-07 09:24:14,251 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2018-11-07 09:24:14,251 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 350 [2018-11-07 09:24:14,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:24:14,373 INFO L225 Difference]: With dead ends: 49066 [2018-11-07 09:24:14,373 INFO L226 Difference]: Without dead ends: 31810 [2018-11-07 09:24:14,410 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 822 GetRequests, 742 SyntacticMatches, 3 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1961 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1272, Invalid=4890, Unknown=0, NotChecked=0, Total=6162 [2018-11-07 09:24:14,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31810 states. [2018-11-07 09:24:15,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31810 to 28862. [2018-11-07 09:24:15,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28862 states. [2018-11-07 09:24:15,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28862 states to 28862 states and 38380 transitions. [2018-11-07 09:24:15,075 INFO L78 Accepts]: Start accepts. Automaton has 28862 states and 38380 transitions. Word has length 350 [2018-11-07 09:24:15,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:24:15,076 INFO L480 AbstractCegarLoop]: Abstraction has 28862 states and 38380 transitions. [2018-11-07 09:24:15,076 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-07 09:24:15,076 INFO L276 IsEmpty]: Start isEmpty. Operand 28862 states and 38380 transitions. [2018-11-07 09:24:15,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2018-11-07 09:24:15,092 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:24:15,093 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 09:24:15,093 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:24:15,093 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:24:15,093 INFO L82 PathProgramCache]: Analyzing trace with hash 1021803679, now seen corresponding path program 1 times [2018-11-07 09:24:15,093 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:24:15,094 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:24:15,094 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:24:15,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:24:15,095 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:24:15,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:24:16,040 WARN L179 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-11-07 09:24:16,228 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-11-07 09:24:17,201 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 146 proven. 262 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 09:24:17,202 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:24:17,202 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 09:24:17,202 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 416 with the following transitions: [2018-11-07 09:24:17,202 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1034], [1036], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [1283], [1287], [1291], [1295], [1299], [1303], [1307], [1318], [1322], [1326], [1330], [1333], [1334], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1413], [1417], [1428], [1432], [1436], [1440], [1451], [1455], [1459], [1463], [1467], [1471], [1475], [1479], [1490], [1501], [1505], [1516], [1520], [1524], [1528], [1532], [1536], [1540], [1544], [1548], [1559], [1563], [1567], [1578], [1582], [1593], [1597], [1601], [1612], [1623], [1627], [1631], [1635], [1639], [1643], [1647], [1651], [1655], [1659], [1663], [1667], [1678], [1689], [1693], [1697], [1701], [1705], [1709], [1713], [1717], [1720], [1725], [1727], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-11-07 09:24:17,207 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 09:24:17,207 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 09:24:17,557 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 09:24:17,557 INFO L272 AbstractInterpreter]: Visited 185 different actions 370 times. Merged at 8 different actions 14 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 26 variables. [2018-11-07 09:24:17,596 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:24:17,596 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 09:24:17,596 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:24:17,597 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 09:24:17,780 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:24:17,780 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 09:24:17,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:24:17,900 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 09:24:18,650 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 311 proven. 55 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2018-11-07 09:24:18,650 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 09:24:19,068 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-11-07 09:24:19,127 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 108 [2018-11-07 09:24:20,667 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 148 proven. 260 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 09:24:20,688 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 09:24:20,688 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10, 10] total 30 [2018-11-07 09:24:20,688 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 09:24:20,689 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-11-07 09:24:20,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-11-07 09:24:20,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=724, Unknown=0, NotChecked=0, Total=870 [2018-11-07 09:24:20,690 INFO L87 Difference]: Start difference. First operand 28862 states and 38380 transitions. Second operand 22 states. [2018-11-07 09:24:21,717 WARN L179 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 15 [2018-11-07 09:24:26,690 WARN L179 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2018-11-07 09:24:26,910 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2018-11-07 09:24:30,743 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2018-11-07 09:24:35,091 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2018-11-07 09:24:37,038 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 47 [2018-11-07 09:24:38,491 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 47 [2018-11-07 09:24:42,274 WARN L179 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2018-11-07 09:24:46,910 WARN L179 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2018-11-07 09:24:47,648 WARN L179 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 59 [2018-11-07 09:24:48,123 WARN L179 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2018-11-07 09:24:50,985 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 34 [2018-11-07 09:24:51,808 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2018-11-07 09:24:53,118 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2018-11-07 09:24:53,744 WARN L179 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 11 [2018-11-07 09:24:57,964 WARN L179 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 28 [2018-11-07 09:24:58,517 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 42 [2018-11-07 09:24:59,366 WARN L179 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 58 [2018-11-07 09:25:04,106 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 58 [2018-11-07 09:25:06,835 WARN L179 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2018-11-07 09:25:10,881 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 56 [2018-11-07 09:25:16,472 WARN L179 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 56 [2018-11-07 09:25:27,501 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 51 [2018-11-07 09:25:34,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:25:34,302 INFO L93 Difference]: Finished difference Result 101540 states and 148797 transitions. [2018-11-07 09:25:34,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2018-11-07 09:25:34,302 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 415 [2018-11-07 09:25:34,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:25:34,720 INFO L225 Difference]: With dead ends: 101540 [2018-11-07 09:25:34,721 INFO L226 Difference]: Without dead ends: 63362 [2018-11-07 09:25:34,909 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1157 GetRequests, 938 SyntacticMatches, 7 SemanticMatches, 212 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 18113 ImplicationChecksByTransitivity, 19.4s TimeCoverageRelationStatistics Valid=6891, Invalid=38691, Unknown=0, NotChecked=0, Total=45582 [2018-11-07 09:25:34,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63362 states. [2018-11-07 09:25:36,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63362 to 57732. [2018-11-07 09:25:36,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57732 states. [2018-11-07 09:25:37,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57732 states to 57732 states and 79724 transitions. [2018-11-07 09:25:37,063 INFO L78 Accepts]: Start accepts. Automaton has 57732 states and 79724 transitions. Word has length 415 [2018-11-07 09:25:37,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:25:37,064 INFO L480 AbstractCegarLoop]: Abstraction has 57732 states and 79724 transitions. [2018-11-07 09:25:37,064 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-11-07 09:25:37,064 INFO L276 IsEmpty]: Start isEmpty. Operand 57732 states and 79724 transitions. [2018-11-07 09:25:37,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2018-11-07 09:25:37,096 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:25:37,097 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 09:25:37,097 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:25:37,097 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:25:37,097 INFO L82 PathProgramCache]: Analyzing trace with hash 1158816147, now seen corresponding path program 1 times [2018-11-07 09:25:37,097 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:25:37,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:25:37,098 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:25:37,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:25:37,099 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:25:37,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:25:37,844 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 138 proven. 166 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-11-07 09:25:37,844 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:25:37,844 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 09:25:37,845 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 417 with the following transitions: [2018-11-07 09:25:37,845 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [922], [924], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1034], [1036], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [1283], [1287], [1291], [1295], [1299], [1303], [1307], [1318], [1322], [1326], [1330], [1333], [1334], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1413], [1417], [1428], [1432], [1436], [1440], [1451], [1455], [1459], [1463], [1467], [1471], [1475], [1479], [1490], [1501], [1505], [1516], [1520], [1524], [1528], [1532], [1536], [1540], [1544], [1548], [1559], [1563], [1567], [1578], [1582], [1593], [1597], [1601], [1612], [1623], [1627], [1631], [1635], [1639], [1643], [1647], [1651], [1655], [1659], [1663], [1667], [1678], [1689], [1693], [1697], [1701], [1705], [1709], [1713], [1717], [1720], [1725], [1727], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-11-07 09:25:37,851 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 09:25:37,852 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 09:25:38,231 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 09:25:38,232 INFO L272 AbstractInterpreter]: Visited 187 different actions 373 times. Merged at 8 different actions 14 times. Never widened. Found 4 fixpoints after 3 different actions. Largest state had 26 variables. [2018-11-07 09:25:38,269 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:25:38,269 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 09:25:38,270 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:25:38,270 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 09:25:38,289 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:25:38,289 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 09:25:38,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:25:38,416 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 09:25:38,668 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 216 proven. 0 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2018-11-07 09:25:38,668 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 09:25:38,803 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 138 proven. 110 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2018-11-07 09:25:38,824 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-07 09:25:38,824 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 3] total 8 [2018-11-07 09:25:38,824 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:25:38,825 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 09:25:38,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 09:25:38,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 09:25:38,825 INFO L87 Difference]: Start difference. First operand 57732 states and 79724 transitions. Second operand 3 states. [2018-11-07 09:25:42,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:25:42,843 INFO L93 Difference]: Finished difference Result 130935 states and 181174 transitions. [2018-11-07 09:25:42,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 09:25:42,843 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 416 [2018-11-07 09:25:42,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:25:43,084 INFO L225 Difference]: With dead ends: 130935 [2018-11-07 09:25:43,084 INFO L226 Difference]: Without dead ends: 64450 [2018-11-07 09:25:43,227 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 839 GetRequests, 832 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 09:25:43,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64450 states. [2018-11-07 09:25:44,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64450 to 63554. [2018-11-07 09:25:44,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63554 states. [2018-11-07 09:25:44,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63554 states to 63554 states and 84311 transitions. [2018-11-07 09:25:44,635 INFO L78 Accepts]: Start accepts. Automaton has 63554 states and 84311 transitions. Word has length 416 [2018-11-07 09:25:44,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:25:44,636 INFO L480 AbstractCegarLoop]: Abstraction has 63554 states and 84311 transitions. [2018-11-07 09:25:44,636 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 09:25:44,636 INFO L276 IsEmpty]: Start isEmpty. Operand 63554 states and 84311 transitions. [2018-11-07 09:25:44,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 444 [2018-11-07 09:25:44,654 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:25:44,654 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 09:25:44,655 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:25:44,655 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:25:44,655 INFO L82 PathProgramCache]: Analyzing trace with hash -730998261, now seen corresponding path program 1 times [2018-11-07 09:25:44,655 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:25:44,656 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:25:44,656 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:25:44,656 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:25:44,657 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:25:44,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:25:45,879 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 93 proven. 6 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2018-11-07 09:25:45,880 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:25:45,880 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 09:25:45,880 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 444 with the following transitions: [2018-11-07 09:25:45,881 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [37], [40], [710], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1034], [1036], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [1283], [1287], [1291], [1295], [1299], [1303], [1307], [1318], [1322], [1326], [1330], [1334], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1413], [1417], [1428], [1432], [1436], [1440], [1451], [1455], [1459], [1463], [1467], [1471], [1475], [1479], [1490], [1501], [1505], [1516], [1520], [1524], [1528], [1532], [1536], [1540], [1544], [1548], [1559], [1563], [1567], [1578], [1582], [1593], [1597], [1601], [1612], [1623], [1627], [1631], [1635], [1639], [1643], [1647], [1651], [1655], [1659], [1663], [1667], [1678], [1689], [1693], [1697], [1701], [1705], [1709], [1713], [1717], [1728], [1732], [1736], [1747], [1751], [1755], [1759], [1763], [1767], [1771], [1775], [1779], [1783], [1787], [1791], [1795], [1799], [1803], [1807], [1818], [1822], [1826], [1830], [1834], [1838], [1842], [1846], [1850], [1854], [1858], [1862], [1866], [1870], [1874], [1878], [1882], [1886], [1890], [1894], [1898], [1902], [1906], [1910], [1914], [1918], [1922], [1933], [1937], [1941], [1945], [1949], [1960], [1964], [1968], [1972], [1976], [1980], [1984], [1988], [1992], [1996], [2000], [2004], [2008], [2012], [2016], [2020], [2024], [2028], [2039], [2043], [2047], [2051], [2055], [2066], [2070], [2074], [2078], [2089], [2093], [2104], [2108], [2119], [2123], [2127], [2131], [2135], [2139], [2143], [2147], [2151], [2155], [2159], [2163], [2167], [2171], [2175], [2179], [2183], [2187], [2191], [2202], [2206], [2210], [2214], [2218], [2229], [2233], [2237], [2241], [2252], [2256], [2260], [2264], [2268], [2272], [2276], [2278], [2279], [2283], [2287], [2293], [2297], [2299], [2304], [2305], [2306], [2307], [2308], [2310], [2311] [2018-11-07 09:25:45,887 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 09:25:45,888 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 09:25:46,456 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 09:25:46,456 INFO L272 AbstractInterpreter]: Visited 311 different actions 618 times. Merged at 7 different actions 11 times. Never widened. Found 2 fixpoints after 2 different actions. Largest state had 26 variables. [2018-11-07 09:25:46,485 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:25:46,485 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 09:25:46,485 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:25:46,485 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 09:25:46,505 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:25:46,505 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 09:25:46,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:25:46,642 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 09:25:47,316 WARN L179 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-11-07 09:25:47,750 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 152 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-11-07 09:25:47,751 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 09:25:49,964 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 64 proven. 116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:25:49,985 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 09:25:49,986 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 7] total 20 [2018-11-07 09:25:49,986 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 09:25:49,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-07 09:25:49,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-07 09:25:49,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2018-11-07 09:25:49,988 INFO L87 Difference]: Start difference. First operand 63554 states and 84311 transitions. Second operand 15 states. Received shutdown request... [2018-11-07 09:26:13,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2018-11-07 09:26:13,831 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 09:26:13,837 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 09:26:13,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 09:26:13 BoogieIcfgContainer [2018-11-07 09:26:13,837 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 09:26:13,838 INFO L168 Benchmark]: Toolchain (without parser) took 233037.55 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 2.1 GB in the end (delta: -674.6 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-11-07 09:26:13,839 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 09:26:13,840 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1599.19 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. [2018-11-07 09:26:13,841 INFO L168 Benchmark]: Boogie Procedure Inliner took 307.29 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 784.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -974.7 MB). Peak memory consumption was 42.5 MB. Max. memory is 7.1 GB. [2018-11-07 09:26:13,842 INFO L168 Benchmark]: Boogie Preprocessor took 212.73 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: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2018-11-07 09:26:13,843 INFO L168 Benchmark]: RCFGBuilder took 8136.87 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 474.1 MB). Peak memory consumption was 474.1 MB. Max. memory is 7.1 GB. [2018-11-07 09:26:13,844 INFO L168 Benchmark]: TraceAbstraction took 222774.47 ms. Allocated memory was 2.3 GB in the beginning and 3.8 GB in the end (delta: 1.5 GB). Free memory was 1.8 GB in the beginning and 2.1 GB in the end (delta: -325.4 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-11-07 09:26:13,848 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1599.19 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 307.29 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 784.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -974.7 MB). Peak memory consumption was 42.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 212.73 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: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8136.87 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 474.1 MB). Peak memory consumption was 474.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 222774.47 ms. Allocated memory was 2.3 GB in the beginning and 3.8 GB in the end (delta: 1.5 GB). Free memory was 1.8 GB in the beginning and 2.1 GB in the end (delta: -325.4 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 146]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 146). Cancelled while BasicCegarLoop was constructing difference of abstraction (63554states) and FLOYD_HOARE automaton (currently 53 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (66172 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 222.6s OverallTime, 9 OverallIterations, 4 TraceHistogramMax, 173.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3420 SDtfs, 54641 SDslu, 5834 SDs, 0 SdLazy, 76629 SolverSat, 15836 SolverUnsat, 290 SolverUnknown, 0 SolverNotchecked, 127.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5604 GetRequests, 5175 SyntacticMatches, 27 SemanticMatches, 402 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 21144 ImplicationChecksByTransitivity, 47.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63554occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 4.5s AbstIntTime, 8 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 5.4s AutomataMinimizationTime, 8 MinimizatonAttempts, 10555 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 35.5s InterpolantComputationTime, 5089 NumberOfCodeBlocks, 5089 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 7582 ConstructedInterpolants, 276 QuantifiedInterpolants, 23260349 SizeOfPredicates, 34 NumberOfNonLiveVariables, 4208 ConjunctsInSsa, 88 ConjunctsInUnsatCore, 25 InterpolantComputations, 5 PerfectInterpolantSequences, 4823/6633 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown