java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label28_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 03:33:26,749 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 03:33:26,752 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 03:33:26,774 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 03:33:26,774 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 03:33:26,776 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 03:33:26,777 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 03:33:26,780 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 03:33:26,783 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 03:33:26,785 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 03:33:26,786 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 03:33:26,786 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 03:33:26,789 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 03:33:26,791 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 03:33:26,792 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 03:33:26,793 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 03:33:26,794 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 03:33:26,797 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 03:33:26,805 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 03:33:26,810 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 03:33:26,811 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 03:33:26,812 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 03:33:26,814 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-27 03:33:26,822 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-27 03:33:26,842 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 03:33:26,842 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 03:33:26,843 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 03:33:26,843 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 03:33:26,843 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 03:33:26,843 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 03:33:26,843 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 03:33:26,844 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 03:33:26,844 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 03:33:26,844 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 03:33:26,844 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 03:33:26,844 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 03:33:26,845 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 03:33:26,845 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 03:33:26,845 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 03:33:26,845 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 03:33:26,846 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 03:33:26,846 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 03:33:26,846 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 03:33:26,846 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 03:33:26,846 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 03:33:26,847 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 03:33:26,847 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 03:33:26,847 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 03:33:26,847 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 03:33:26,847 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 03:33:26,848 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 03:33:26,848 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 03:33:26,848 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 03:33:26,848 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 03:33:26,848 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 03:33:26,848 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 03:33:26,849 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 03:33:26,849 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 03:33:26,896 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 03:33:26,908 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 03:33:26,914 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 03:33:26,915 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 03:33:26,916 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 03:33:26,917 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label28_true-unreach-call.c [2018-10-27 03:33:26,983 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/bb67c812c/ce3cae0fe5d14d498172e216233a3bda/FLAG565ffd659 [2018-10-27 03:33:27,684 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 03:33:27,685 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label28_true-unreach-call.c [2018-10-27 03:33:27,717 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/bb67c812c/ce3cae0fe5d14d498172e216233a3bda/FLAG565ffd659 [2018-10-27 03:33:27,732 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/bb67c812c/ce3cae0fe5d14d498172e216233a3bda [2018-10-27 03:33:27,743 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 03:33:27,744 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 03:33:27,745 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 03:33:27,745 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 03:33:27,748 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 03:33:27,749 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:33:27" (1/1) ... [2018-10-27 03:33:27,751 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@324bd927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:27, skipping insertion in model container [2018-10-27 03:33:27,752 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:33:27" (1/1) ... [2018-10-27 03:33:27,762 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 03:33:27,869 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 03:33:28,859 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 03:33:28,864 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 03:33:29,314 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 03:33:29,340 INFO L193 MainTranslator]: Completed translation [2018-10-27 03:33:29,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:29 WrapperNode [2018-10-27 03:33:29,341 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 03:33:29,342 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 03:33:29,342 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 03:33:29,342 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 03:33:29,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:29" (1/1) ... [2018-10-27 03:33:29,419 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:29" (1/1) ... [2018-10-27 03:33:29,801 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 03:33:29,802 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 03:33:29,802 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 03:33:29,802 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 03:33:29,812 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:29" (1/1) ... [2018-10-27 03:33:29,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:29" (1/1) ... [2018-10-27 03:33:29,845 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:29" (1/1) ... [2018-10-27 03:33:29,845 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:29" (1/1) ... [2018-10-27 03:33:29,941 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:29" (1/1) ... [2018-10-27 03:33:29,977 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:29" (1/1) ... [2018-10-27 03:33:30,016 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:29" (1/1) ... [2018-10-27 03:33:30,045 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 03:33:30,046 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 03:33:30,046 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 03:33:30,046 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 03:33:30,048 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 03:33:30,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 03:33:30,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 03:33:30,118 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 03:33:30,119 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 03:33:30,119 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 03:33:30,119 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 03:33:30,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 03:33:30,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 03:33:30,120 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 03:33:30,120 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 03:33:43,128 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 03:33:43,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:33:43 BoogieIcfgContainer [2018-10-27 03:33:43,129 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 03:33:43,130 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 03:33:43,131 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 03:33:43,134 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 03:33:43,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:33:27" (1/3) ... [2018-10-27 03:33:43,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@483633a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:33:43, skipping insertion in model container [2018-10-27 03:33:43,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:29" (2/3) ... [2018-10-27 03:33:43,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@483633a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:33:43, skipping insertion in model container [2018-10-27 03:33:43,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:33:43" (3/3) ... [2018-10-27 03:33:43,138 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label28_true-unreach-call.c [2018-10-27 03:33:43,148 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 03:33:43,159 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 03:33:43,177 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 03:33:43,226 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 03:33:43,226 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 03:33:43,226 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 03:33:43,226 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 03:33:43,227 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 03:33:43,227 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 03:33:43,227 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 03:33:43,227 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 03:33:43,278 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-10-27 03:33:43,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-10-27 03:33:43,288 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:33:43,289 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:33:43,292 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:33:43,299 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:33:43,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1044962550, now seen corresponding path program 1 times [2018-10-27 03:33:43,302 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:33:43,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:33:43,353 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:33:43,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:33:43,353 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:33:43,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:33:43,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:33:43,908 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:33:43,908 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 03:33:43,909 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:33:43,915 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 03:33:43,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 03:33:43,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 03:33:43,936 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-10-27 03:33:59,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:33:59,401 INFO L93 Difference]: Finished difference Result 2133 states and 3959 transitions. [2018-10-27 03:33:59,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 03:33:59,403 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 71 [2018-10-27 03:33:59,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:33:59,439 INFO L225 Difference]: With dead ends: 2133 [2018-10-27 03:33:59,439 INFO L226 Difference]: Without dead ends: 1523 [2018-10-27 03:33:59,448 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 03:33:59,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1523 states. [2018-10-27 03:33:59,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1523 to 1516. [2018-10-27 03:33:59,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1516 states. [2018-10-27 03:33:59,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1516 states to 1516 states and 2287 transitions. [2018-10-27 03:33:59,593 INFO L78 Accepts]: Start accepts. Automaton has 1516 states and 2287 transitions. Word has length 71 [2018-10-27 03:33:59,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:33:59,595 INFO L481 AbstractCegarLoop]: Abstraction has 1516 states and 2287 transitions. [2018-10-27 03:33:59,596 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 03:33:59,596 INFO L276 IsEmpty]: Start isEmpty. Operand 1516 states and 2287 transitions. [2018-10-27 03:33:59,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-10-27 03:33:59,612 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:33:59,612 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-27 03:33:59,613 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:33:59,616 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:33:59,616 INFO L82 PathProgramCache]: Analyzing trace with hash 497854657, now seen corresponding path program 1 times [2018-10-27 03:33:59,616 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:33:59,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:33:59,619 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:33:59,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:33:59,619 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:33:59,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:34:00,061 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:34:00,061 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 03:34:00,061 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 03:34:00,063 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 147 with the following transitions: [2018-10-27 03:34:00,065 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], [1038], [1046], [1054], [1062], [1070], [1078], [1086], [1094], [1102], [1110], [1118], [1126], [1134], [1142], [1150], [1158], [1166], [1174], [1178], [1180], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-27 03:34:00,128 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 03:34:00,129 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 03:34:01,694 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 03:34:21,991 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 03:34:21,992 INFO L272 AbstractInterpreter]: Visited 83 different actions 544 times. Merged at 5 different actions 30 times. Widened at 1 different actions 2 times. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-10-27 03:34:22,010 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:34:22,012 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 03:34:22,012 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 03:34:22,012 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-27 03:34:22,021 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:34:22,021 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 03:34:22,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:34:22,134 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 03:34:48,966 WARN L179 SmtUtils]: Spent 24.31 s on a formula simplification. DAG size of input: 135 DAG size of output: 98 [2018-10-27 03:35:09,252 WARN L179 SmtUtils]: Spent 16.10 s on a formula simplification. DAG size of input: 98 DAG size of output: 73 [2018-10-27 03:35:09,942 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 4 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:35:09,942 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 03:35:14,482 WARN L179 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 133 DAG size of output: 16 [2018-10-27 03:35:14,533 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 28 [2018-10-27 03:35:17,202 WARN L179 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 26 [2018-10-27 03:35:17,547 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:35:17,588 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-10-27 03:35:17,589 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 15 [2018-10-27 03:35:17,589 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:35:17,590 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 03:35:17,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 03:35:17,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=161, Unknown=4, NotChecked=0, Total=210 [2018-10-27 03:35:17,591 INFO L87 Difference]: Start difference. First operand 1516 states and 2287 transitions. Second operand 6 states. [2018-10-27 03:36:08,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:36:08,050 INFO L93 Difference]: Finished difference Result 5732 states and 8882 transitions. [2018-10-27 03:36:08,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-27 03:36:08,051 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 146 [2018-10-27 03:36:08,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:36:08,084 INFO L225 Difference]: With dead ends: 5732 [2018-10-27 03:36:08,084 INFO L226 Difference]: Without dead ends: 4222 [2018-10-27 03:36:08,097 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 286 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 54.2s TimeCoverageRelationStatistics Valid=45, Invalid=161, Unknown=4, NotChecked=0, Total=210 [2018-10-27 03:36:08,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4222 states. [2018-10-27 03:36:08,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4222 to 4193. [2018-10-27 03:36:08,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4193 states. [2018-10-27 03:36:08,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4193 states to 4193 states and 6143 transitions. [2018-10-27 03:36:08,242 INFO L78 Accepts]: Start accepts. Automaton has 4193 states and 6143 transitions. Word has length 146 [2018-10-27 03:36:08,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:36:08,243 INFO L481 AbstractCegarLoop]: Abstraction has 4193 states and 6143 transitions. [2018-10-27 03:36:08,243 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 03:36:08,243 INFO L276 IsEmpty]: Start isEmpty. Operand 4193 states and 6143 transitions. [2018-10-27 03:36:08,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2018-10-27 03:36:08,253 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:36:08,253 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-27 03:36:08,254 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:36:08,254 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:36:08,254 INFO L82 PathProgramCache]: Analyzing trace with hash -977557274, now seen corresponding path program 1 times [2018-10-27 03:36:08,254 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:36:08,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:36:08,259 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:36:08,260 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:36:08,260 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:36:08,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:36:08,564 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:36:08,564 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:36:08,564 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 03:36:08,564 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:36:08,565 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 03:36:08,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 03:36:08,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 03:36:08,566 INFO L87 Difference]: Start difference. First operand 4193 states and 6143 transitions. Second operand 6 states. [2018-10-27 03:36:15,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:36:15,896 INFO L93 Difference]: Finished difference Result 12516 states and 19246 transitions. [2018-10-27 03:36:15,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 03:36:15,900 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 187 [2018-10-27 03:36:15,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:36:15,959 INFO L225 Difference]: With dead ends: 12516 [2018-10-27 03:36:15,959 INFO L226 Difference]: Without dead ends: 8329 [2018-10-27 03:36:15,984 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 03:36:15,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8329 states. [2018-10-27 03:36:16,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8329 to 8261. [2018-10-27 03:36:16,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8261 states. [2018-10-27 03:36:16,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8261 states to 8261 states and 11741 transitions. [2018-10-27 03:36:16,227 INFO L78 Accepts]: Start accepts. Automaton has 8261 states and 11741 transitions. Word has length 187 [2018-10-27 03:36:16,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:36:16,228 INFO L481 AbstractCegarLoop]: Abstraction has 8261 states and 11741 transitions. [2018-10-27 03:36:16,228 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 03:36:16,228 INFO L276 IsEmpty]: Start isEmpty. Operand 8261 states and 11741 transitions. [2018-10-27 03:36:16,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2018-10-27 03:36:16,234 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:36:16,235 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-27 03:36:16,235 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:36:16,235 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:36:16,236 INFO L82 PathProgramCache]: Analyzing trace with hash -1079988822, now seen corresponding path program 1 times [2018-10-27 03:36:16,236 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:36:16,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:36:16,237 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:36:16,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:36:16,237 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:36:16,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:36:16,583 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:36:16,583 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:36:16,584 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-27 03:36:16,584 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:36:16,584 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-27 03:36:16,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-27 03:36:16,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-27 03:36:16,585 INFO L87 Difference]: Start difference. First operand 8261 states and 11741 transitions. Second operand 7 states. [2018-10-27 03:36:41,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:36:41,448 INFO L93 Difference]: Finished difference Result 24245 states and 39747 transitions. [2018-10-27 03:36:41,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-27 03:36:41,448 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 205 [2018-10-27 03:36:41,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:36:41,579 INFO L225 Difference]: With dead ends: 24245 [2018-10-27 03:36:41,580 INFO L226 Difference]: Without dead ends: 15990 [2018-10-27 03:36:41,653 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-27 03:36:41,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15990 states. [2018-10-27 03:36:42,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15990 to 15747. [2018-10-27 03:36:42,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15747 states. [2018-10-27 03:36:42,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15747 states to 15747 states and 23918 transitions. [2018-10-27 03:36:42,217 INFO L78 Accepts]: Start accepts. Automaton has 15747 states and 23918 transitions. Word has length 205 [2018-10-27 03:36:42,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:36:42,218 INFO L481 AbstractCegarLoop]: Abstraction has 15747 states and 23918 transitions. [2018-10-27 03:36:42,218 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-27 03:36:42,218 INFO L276 IsEmpty]: Start isEmpty. Operand 15747 states and 23918 transitions. [2018-10-27 03:36:42,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2018-10-27 03:36:42,232 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:36:42,232 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-27 03:36:42,232 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:36:42,233 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:36:42,233 INFO L82 PathProgramCache]: Analyzing trace with hash 327547341, now seen corresponding path program 1 times [2018-10-27 03:36:42,233 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:36:42,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:36:42,234 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:36:42,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:36:42,234 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:36:42,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:36:42,501 WARN L179 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 03:36:42,956 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 129 proven. 7 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-10-27 03:36:42,956 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 03:36:42,956 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 03:36:42,957 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 230 with the following transitions: [2018-10-27 03:36:42,957 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], [1038], [1046], [1054], [1062], [1070], [1078], [1086], [1094], [1102], [1110], [1118], [1126], [1134], [1142], [1150], [1158], [1166], [1174], [1178], [1180], [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] [2018-10-27 03:36:42,965 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 03:36:42,966 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 03:36:43,977 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 03:37:04,319 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 03:37:04,320 INFO L272 AbstractInterpreter]: Visited 92 different actions 607 times. Merged at 5 different actions 30 times. Widened at 1 different actions 2 times. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-10-27 03:37:04,325 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:37:04,325 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 03:37:04,325 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 03:37:04,326 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-27 03:37:04,334 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:37:04,334 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 03:37:04,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:37:04,426 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 03:37:04,600 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 201 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:37:04,601 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 03:37:04,969 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 201 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:37:05,002 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 03:37:05,003 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-10-27 03:37:05,003 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 03:37:05,004 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-27 03:37:05,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-27 03:37:05,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-10-27 03:37:05,009 INFO L87 Difference]: Start difference. First operand 15747 states and 23918 transitions. Second operand 9 states. [2018-10-27 03:37:14,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:37:14,533 INFO L93 Difference]: Finished difference Result 36901 states and 57214 transitions. [2018-10-27 03:37:14,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-27 03:37:14,534 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 229 [2018-10-27 03:37:14,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:37:14,610 INFO L225 Difference]: With dead ends: 36901 [2018-10-27 03:37:14,611 INFO L226 Difference]: Without dead ends: 18459 [2018-10-27 03:37:14,673 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 456 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2018-10-27 03:37:14,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18459 states. [2018-10-27 03:37:15,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18459 to 18382. [2018-10-27 03:37:15,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18382 states. [2018-10-27 03:37:15,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18382 states to 18382 states and 23513 transitions. [2018-10-27 03:37:15,110 INFO L78 Accepts]: Start accepts. Automaton has 18382 states and 23513 transitions. Word has length 229 [2018-10-27 03:37:15,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:37:15,110 INFO L481 AbstractCegarLoop]: Abstraction has 18382 states and 23513 transitions. [2018-10-27 03:37:15,110 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-27 03:37:15,110 INFO L276 IsEmpty]: Start isEmpty. Operand 18382 states and 23513 transitions. [2018-10-27 03:37:15,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2018-10-27 03:37:15,116 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:37:15,116 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:37:15,117 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:37:15,117 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:37:15,117 INFO L82 PathProgramCache]: Analyzing trace with hash 756448335, now seen corresponding path program 1 times [2018-10-27 03:37:15,117 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:37:15,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:37:15,118 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:37:15,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:37:15,119 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:37:15,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:37:15,335 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-10-27 03:37:15,335 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:37:15,335 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 03:37:15,335 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:37:15,336 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 03:37:15,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 03:37:15,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 03:37:15,337 INFO L87 Difference]: Start difference. First operand 18382 states and 23513 transitions. Second operand 3 states. [2018-10-27 03:37:22,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:37:22,801 INFO L93 Difference]: Finished difference Result 42556 states and 55845 transitions. [2018-10-27 03:37:22,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 03:37:22,801 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 246 [2018-10-27 03:37:22,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:37:22,868 INFO L225 Difference]: With dead ends: 42556 [2018-10-27 03:37:22,868 INFO L226 Difference]: Without dead ends: 22358 [2018-10-27 03:37:22,935 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 03:37:22,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22358 states. [2018-10-27 03:37:23,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22358 to 22358. [2018-10-27 03:37:23,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22358 states. [2018-10-27 03:37:23,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22358 states to 22358 states and 27841 transitions. [2018-10-27 03:37:23,401 INFO L78 Accepts]: Start accepts. Automaton has 22358 states and 27841 transitions. Word has length 246 [2018-10-27 03:37:23,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:37:23,402 INFO L481 AbstractCegarLoop]: Abstraction has 22358 states and 27841 transitions. [2018-10-27 03:37:23,402 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 03:37:23,402 INFO L276 IsEmpty]: Start isEmpty. Operand 22358 states and 27841 transitions. [2018-10-27 03:37:23,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2018-10-27 03:37:23,411 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:37:23,411 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:37:23,411 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:37:23,411 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:37:23,412 INFO L82 PathProgramCache]: Analyzing trace with hash -2034483145, now seen corresponding path program 1 times [2018-10-27 03:37:23,412 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:37:23,413 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:37:23,413 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:37:23,413 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:37:23,413 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:37:23,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:37:23,776 WARN L179 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 03:37:24,612 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 137 proven. 72 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-27 03:37:24,612 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 03:37:24,612 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 03:37:24,613 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 276 with the following transitions: [2018-10-27 03:37:24,613 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], [1038], [1046], [1054], [1062], [1070], [1078], [1086], [1094], [1102], [1110], [1118], [1126], [1134], [1142], [1150], [1158], [1166], [1174], [1178], [1180], [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], [1408], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-27 03:37:24,622 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 03:37:24,622 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 03:37:25,780 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-27 03:37:28,344 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-10-27 03:37:28,345 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-10-27 03:37:28,345 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-27 03:37:28,345 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 03:37:28,345 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-27 03:37:28,354 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:37:28,355 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 03:37:28,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:37:28,444 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 03:37:28,476 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-27 03:37:28,677 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 03:37:28,678 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 03:37:28,683 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 03:37:28,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:37:28 BoogieIcfgContainer [2018-10-27 03:37:28,684 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 03:37:28,685 INFO L168 Benchmark]: Toolchain (without parser) took 240941.63 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.9 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-10-27 03:37:28,686 INFO L168 Benchmark]: CDTParser took 0.24 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. [2018-10-27 03:37:28,686 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1596.87 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. [2018-10-27 03:37:28,688 INFO L168 Benchmark]: Boogie Procedure Inliner took 459.81 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 770.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -921.0 MB). Peak memory consumption was 56.2 MB. Max. memory is 7.1 GB. [2018-10-27 03:37:28,689 INFO L168 Benchmark]: Boogie Preprocessor took 243.52 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 28.7 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. [2018-10-27 03:37:28,690 INFO L168 Benchmark]: RCFGBuilder took 13083.69 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 475.1 MB). Peak memory consumption was 475.1 MB. Max. memory is 7.1 GB. [2018-10-27 03:37:28,691 INFO L168 Benchmark]: TraceAbstraction took 225553.50 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 2.9 GB in the end (delta: -1.2 GB). Peak memory consumption was 565.4 MB. Max. memory is 7.1 GB. [2018-10-27 03:37:28,695 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 1596.87 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 459.81 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 770.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -921.0 MB). Peak memory consumption was 56.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 243.52 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 28.7 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 13083.69 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 475.1 MB). Peak memory consumption was 475.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 225553.50 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 2.9 GB in the end (delta: -1.2 GB). Peak memory consumption was 565.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 200]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 200). Cancelled while BasicCegarLoop was analyzing trace of length 276 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 7 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 225.4s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 115.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2279 SDtfs, 12506 SDslu, 1844 SDs, 0 SdLazy, 19630 SolverSat, 6074 SolverUnsat, 12 SolverUnknown, 0 SolverNotchecked, 105.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 807 GetRequests, 755 SyntacticMatches, 5 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 55.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22358occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 47.0s AbstIntTime, 3 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.9s AutomataMinimizationTime, 6 MinimizatonAttempts, 424 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 57.9s InterpolantComputationTime, 1459 NumberOfCodeBlocks, 1459 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1824 ConstructedInterpolants, 145 QuantifiedInterpolants, 2993822 SizeOfPredicates, 4 NumberOfNonLiveVariables, 723 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 10 InterpolantComputations, 5 PerfectInterpolantSequences, 1009/1144 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown