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/Problem19_label15_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 22:27:42,724 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 22:27:42,726 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 22:27:42,740 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 22:27:42,740 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 22:27:42,742 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 22:27:42,746 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 22:27:42,750 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 22:27:42,752 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 22:27:42,753 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 22:27:42,754 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 22:27:42,754 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 22:27:42,755 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 22:27:42,757 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 22:27:42,758 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 22:27:42,759 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 22:27:42,761 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 22:27:42,763 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 22:27:42,771 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 22:27:42,776 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 22:27:42,777 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 22:27:42,779 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 22:27:42,785 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 22:27:42,797 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 22:27:42,827 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 22:27:42,827 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 22:27:42,828 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 22:27:42,829 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 22:27:42,829 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 22:27:42,829 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 22:27:42,829 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 22:27:42,829 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 22:27:42,830 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 22:27:42,830 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 22:27:42,830 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 22:27:42,830 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 22:27:42,831 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 22:27:42,831 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 22:27:42,831 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 22:27:42,831 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 22:27:42,832 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 22:27:42,832 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 22:27:42,832 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 22:27:42,832 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 22:27:42,832 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 22:27:42,833 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 22:27:42,833 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 22:27:42,833 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 22:27:42,833 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 22:27:42,833 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 22:27:42,834 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 22:27:42,834 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 22:27:42,834 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 22:27:42,834 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 22:27:42,834 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 22:27:42,834 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 22:27:42,835 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 22:27:42,835 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 22:27:42,887 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 22:27:42,900 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 22:27:42,903 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 22:27:42,905 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 22:27:42,905 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 22:27:42,906 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label15_true-unreach-call.c [2018-10-24 22:27:42,959 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/83d7b8087/8c044832557b4238bb2be9f9462a0bb2/FLAGf30ea5f59 [2018-10-24 22:27:43,869 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 22:27:43,872 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label15_true-unreach-call.c [2018-10-24 22:27:43,923 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/83d7b8087/8c044832557b4238bb2be9f9462a0bb2/FLAGf30ea5f59 [2018-10-24 22:27:43,940 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/83d7b8087/8c044832557b4238bb2be9f9462a0bb2 [2018-10-24 22:27:43,954 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 22:27:43,956 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 22:27:43,957 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 22:27:43,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 22:27:43,963 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 22:27:43,964 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:27:43" (1/1) ... [2018-10-24 22:27:43,968 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@579929de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:27:43, skipping insertion in model container [2018-10-24 22:27:43,968 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:27:43" (1/1) ... [2018-10-24 22:27:43,979 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 22:27:44,255 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 22:27:46,256 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 22:27:46,261 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 22:27:47,415 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 22:27:47,474 INFO L193 MainTranslator]: Completed translation [2018-10-24 22:27:47,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:27:47 WrapperNode [2018-10-24 22:27:47,475 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 22:27:47,476 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 22:27:47,476 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 22:27:47,476 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 22:27:47,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:27:47" (1/1) ... [2018-10-24 22:27:47,581 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:27:47" (1/1) ... [2018-10-24 22:27:48,247 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 22:27:48,248 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 22:27:48,248 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 22:27:48,248 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 22:27:48,259 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:27:47" (1/1) ... [2018-10-24 22:27:48,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:27:47" (1/1) ... [2018-10-24 22:27:48,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:27:47" (1/1) ... [2018-10-24 22:27:48,306 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:27:47" (1/1) ... [2018-10-24 22:27:48,534 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:27:47" (1/1) ... [2018-10-24 22:27:48,580 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:27:47" (1/1) ... [2018-10-24 22:27:48,646 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:27:47" (1/1) ... [2018-10-24 22:27:48,764 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 22:27:48,765 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 22:27:48,765 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 22:27:48,765 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 22:27:48,766 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:27:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 22:27:48,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 22:27:48,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 22:27:48,839 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-10-24 22:27:48,839 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-10-24 22:27:48,839 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-10-24 22:27:48,839 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-10-24 22:27:48,839 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-24 22:27:48,840 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-24 22:27:48,840 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-24 22:27:48,840 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-24 22:27:48,840 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 22:27:48,840 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 22:27:48,841 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 22:27:48,841 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 22:27:48,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 22:27:48,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 22:27:48,842 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 22:27:48,842 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 22:28:07,554 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 22:28:07,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:28:07 BoogieIcfgContainer [2018-10-24 22:28:07,555 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 22:28:07,556 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 22:28:07,556 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 22:28:07,560 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 22:28:07,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:27:43" (1/3) ... [2018-10-24 22:28:07,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@332d6910 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:28:07, skipping insertion in model container [2018-10-24 22:28:07,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:27:47" (2/3) ... [2018-10-24 22:28:07,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@332d6910 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:28:07, skipping insertion in model container [2018-10-24 22:28:07,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:28:07" (3/3) ... [2018-10-24 22:28:07,564 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label15_true-unreach-call.c [2018-10-24 22:28:07,574 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 22:28:07,585 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 22:28:07,604 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 22:28:07,663 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 22:28:07,663 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 22:28:07,663 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 22:28:07,664 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 22:28:07,664 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 22:28:07,664 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 22:28:07,664 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 22:28:07,664 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 22:28:07,728 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-10-24 22:28:07,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-10-24 22:28:07,737 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:28:07,738 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] [2018-10-24 22:28:07,740 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:28:07,746 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:28:07,746 INFO L82 PathProgramCache]: Analyzing trace with hash -145550206, now seen corresponding path program 1 times [2018-10-24 22:28:07,748 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:28:07,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:28:07,805 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:28:07,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:28:07,805 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:28:07,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:28:08,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 22:28:08,287 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:28:08,288 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 22:28:08,288 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:28:08,294 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 22:28:08,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 22:28:08,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 22:28:08,320 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 4 states. [2018-10-24 22:28:37,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:28:37,271 INFO L93 Difference]: Finished difference Result 6513 states and 12383 transitions. [2018-10-24 22:28:37,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 22:28:37,275 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 65 [2018-10-24 22:28:37,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:28:37,325 INFO L225 Difference]: With dead ends: 6513 [2018-10-24 22:28:37,325 INFO L226 Difference]: Without dead ends: 4729 [2018-10-24 22:28:37,340 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 [2018-10-24 22:28:37,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4729 states. [2018-10-24 22:28:37,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4729 to 4693. [2018-10-24 22:28:37,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4693 states. [2018-10-24 22:28:37,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4693 states to 4693 states and 7735 transitions. [2018-10-24 22:28:37,607 INFO L78 Accepts]: Start accepts. Automaton has 4693 states and 7735 transitions. Word has length 65 [2018-10-24 22:28:37,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:28:37,608 INFO L481 AbstractCegarLoop]: Abstraction has 4693 states and 7735 transitions. [2018-10-24 22:28:37,609 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 22:28:37,609 INFO L276 IsEmpty]: Start isEmpty. Operand 4693 states and 7735 transitions. [2018-10-24 22:28:37,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-10-24 22:28:37,625 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:28:37,625 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 22:28:37,628 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:28:37,628 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:28:37,629 INFO L82 PathProgramCache]: Analyzing trace with hash -1956104820, now seen corresponding path program 1 times [2018-10-24 22:28:37,629 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:28:37,630 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:28:37,630 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:28:37,631 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:28:37,632 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:28:37,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:28:37,969 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 22:28:37,969 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:28:37,970 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 22:28:37,970 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:28:37,972 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 22:28:37,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 22:28:37,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 22:28:37,973 INFO L87 Difference]: Start difference. First operand 4693 states and 7735 transitions. Second operand 6 states. [2018-10-24 22:29:12,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:29:12,470 INFO L93 Difference]: Finished difference Result 17886 states and 30173 transitions. [2018-10-24 22:29:12,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 22:29:12,471 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 137 [2018-10-24 22:29:12,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:29:12,540 INFO L225 Difference]: With dead ends: 17886 [2018-10-24 22:29:12,541 INFO L226 Difference]: Without dead ends: 13199 [2018-10-24 22:29:12,560 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 22:29:12,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13199 states. [2018-10-24 22:29:12,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13199 to 13130. [2018-10-24 22:29:12,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13130 states. [2018-10-24 22:29:12,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13130 states to 13130 states and 19368 transitions. [2018-10-24 22:29:12,908 INFO L78 Accepts]: Start accepts. Automaton has 13130 states and 19368 transitions. Word has length 137 [2018-10-24 22:29:12,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:29:12,909 INFO L481 AbstractCegarLoop]: Abstraction has 13130 states and 19368 transitions. [2018-10-24 22:29:12,909 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 22:29:12,909 INFO L276 IsEmpty]: Start isEmpty. Operand 13130 states and 19368 transitions. [2018-10-24 22:29:12,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-10-24 22:29:12,924 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:29:12,924 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 22:29:12,926 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:29:12,926 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:29:12,926 INFO L82 PathProgramCache]: Analyzing trace with hash -749519922, now seen corresponding path program 1 times [2018-10-24 22:29:12,926 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:29:12,927 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:29:12,927 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:29:12,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:29:12,928 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:29:12,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:29:13,284 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 22:29:13,284 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:29:13,284 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 22:29:13,284 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:29:13,285 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 22:29:13,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 22:29:13,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-24 22:29:13,286 INFO L87 Difference]: Start difference. First operand 13130 states and 19368 transitions. Second operand 6 states. [2018-10-24 22:29:38,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:29:38,708 INFO L93 Difference]: Finished difference Result 39920 states and 60257 transitions. [2018-10-24 22:29:38,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-24 22:29:38,710 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 147 [2018-10-24 22:29:38,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:29:38,797 INFO L225 Difference]: With dead ends: 39920 [2018-10-24 22:29:38,797 INFO L226 Difference]: Without dead ends: 26796 [2018-10-24 22:29:38,836 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-10-24 22:29:38,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26796 states. [2018-10-24 22:29:39,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26796 to 26557. [2018-10-24 22:29:39,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26557 states. [2018-10-24 22:29:39,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26557 states to 26557 states and 38668 transitions. [2018-10-24 22:29:39,404 INFO L78 Accepts]: Start accepts. Automaton has 26557 states and 38668 transitions. Word has length 147 [2018-10-24 22:29:39,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:29:39,405 INFO L481 AbstractCegarLoop]: Abstraction has 26557 states and 38668 transitions. [2018-10-24 22:29:39,405 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 22:29:39,405 INFO L276 IsEmpty]: Start isEmpty. Operand 26557 states and 38668 transitions. [2018-10-24 22:29:39,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2018-10-24 22:29:39,410 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:29:39,410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 22:29:39,414 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:29:39,414 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:29:39,414 INFO L82 PathProgramCache]: Analyzing trace with hash -177824352, now seen corresponding path program 1 times [2018-10-24 22:29:39,415 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:29:39,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:29:39,416 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:29:39,416 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:29:39,416 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:29:39,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:29:39,735 WARN L179 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 22:29:39,936 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 22:29:39,936 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:29:39,937 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 22:29:39,937 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:29:39,937 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 22:29:39,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 22:29:39,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 22:29:39,938 INFO L87 Difference]: Start difference. First operand 26557 states and 38668 transitions. Second operand 6 states. [2018-10-24 22:30:04,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:30:04,905 INFO L93 Difference]: Finished difference Result 73393 states and 112230 transitions. [2018-10-24 22:30:04,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 22:30:04,906 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 180 [2018-10-24 22:30:04,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:30:05,040 INFO L225 Difference]: With dead ends: 73393 [2018-10-24 22:30:05,041 INFO L226 Difference]: Without dead ends: 46842 [2018-10-24 22:30:05,124 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 22:30:05,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46842 states. [2018-10-24 22:30:05,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46842 to 46686. [2018-10-24 22:30:05,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46686 states. [2018-10-24 22:30:06,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46686 states to 46686 states and 66468 transitions. [2018-10-24 22:30:06,026 INFO L78 Accepts]: Start accepts. Automaton has 46686 states and 66468 transitions. Word has length 180 [2018-10-24 22:30:06,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:30:06,028 INFO L481 AbstractCegarLoop]: Abstraction has 46686 states and 66468 transitions. [2018-10-24 22:30:06,028 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 22:30:06,028 INFO L276 IsEmpty]: Start isEmpty. Operand 46686 states and 66468 transitions. [2018-10-24 22:30:06,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2018-10-24 22:30:06,041 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:30:06,041 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 22:30:06,042 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:30:06,042 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:30:06,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1490211056, now seen corresponding path program 1 times [2018-10-24 22:30:06,042 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:30:06,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:30:06,043 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:30:06,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:30:06,043 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:30:06,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:30:06,341 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 22:30:06,735 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 174 proven. 134 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2018-10-24 22:30:06,737 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 22:30:06,737 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 22:30:06,738 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 291 with the following transitions: [2018-10-24 22:30:06,741 INFO L202 CegarAbsIntRunner]: [0], [1], [5227], [5234], [5242], [5250], [5258], [5266], [5274], [5282], [5290], [5298], [5306], [5314], [5322], [5330], [5338], [5346], [5354], [5362], [5370], [5378], [5386], [5394], [5402], [5410], [5418], [5426], [5434], [5442], [5450], [5458], [5466], [5474], [5482], [5490], [5498], [5506], [5514], [5522], [5530], [5538], [5546], [5554], [5562], [5570], [5578], [5586], [5594], [5602], [5610], [5618], [5626], [5634], [5642], [5646], [5648], [5651], [5659], [5667], [5675], [5683], [5691], [5699], [5707], [5715], [5719], [5722], [5726], [5727], [5731], [5742], [5746], [5749], [5750], [5754], [5758], [5762], [5766], [5769], [6802], [6806], [6810], [6816], [6820], [6822], [6837], [6838], [6839], [6841], [6842] [2018-10-24 22:30:06,828 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 22:30:06,828 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 22:30:09,310 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 22:30:09,311 INFO L272 AbstractInterpreter]: Visited 85 different actions 85 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-24 22:30:09,317 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:30:09,317 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 22:30:12,346 INFO L232 lantSequenceWeakener]: Weakened 277 states. On average, predicates are now at 75.75% of their original sizes. [2018-10-24 22:30:12,346 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 22:30:12,872 INFO L413 sIntCurrentIteration]: We have 289 unified AI predicates [2018-10-24 22:30:12,873 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 22:30:12,874 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 22:30:12,874 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-10-24 22:30:12,874 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:30:12,875 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 22:30:12,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 22:30:12,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 22:30:12,875 INFO L87 Difference]: Start difference. First operand 46686 states and 66468 transitions. Second operand 7 states. [2018-10-24 22:30:17,231 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-24 22:31:25,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 22:31:25,633 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 22:31:25,640 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 22:31:25,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:31:25 BoogieIcfgContainer [2018-10-24 22:31:25,640 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 22:31:25,641 INFO L168 Benchmark]: Toolchain (without parser) took 221685.84 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 3.2 GB in the end (delta: -1.8 GB). Peak memory consumption was 817.3 MB. Max. memory is 7.1 GB. [2018-10-24 22:31:25,642 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 22:31:25,643 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3517.78 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 392.7 MB). Peak memory consumption was 392.7 MB. Max. memory is 7.1 GB. [2018-10-24 22:31:25,644 INFO L168 Benchmark]: Boogie Procedure Inliner took 772.03 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 869.8 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 117.2 MB. Max. memory is 7.1 GB. [2018-10-24 22:31:25,645 INFO L168 Benchmark]: Boogie Preprocessor took 516.22 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 61.1 MB). Peak memory consumption was 61.1 MB. Max. memory is 7.1 GB. [2018-10-24 22:31:25,646 INFO L168 Benchmark]: RCFGBuilder took 18790.17 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 159.4 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 534.1 MB). Peak memory consumption was 693.5 MB. Max. memory is 7.1 GB. [2018-10-24 22:31:25,647 INFO L168 Benchmark]: TraceAbstraction took 198084.52 ms. Allocated memory was 2.6 GB in the beginning and 4.1 GB in the end (delta: 1.6 GB). Free memory was 1.7 GB in the beginning and 3.2 GB in the end (delta: -1.5 GB). Peak memory consumption was 72.2 MB. Max. memory is 7.1 GB. [2018-10-24 22:31:25,653 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3517.78 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 392.7 MB). Peak memory consumption was 392.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 772.03 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 869.8 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 117.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 516.22 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 61.1 MB). Peak memory consumption was 61.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 18790.17 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 159.4 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 534.1 MB). Peak memory consumption was 693.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 198084.52 ms. Allocated memory was 2.6 GB in the beginning and 4.1 GB in the end (delta: 1.6 GB). Free memory was 1.7 GB in the beginning and 3.2 GB in the end (delta: -1.5 GB). Peak memory consumption was 72.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 190]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 190). Cancelled while BasicCegarLoop was constructing difference of abstraction (46686states) and FLOYD_HOARE automaton (currently 7 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (8220 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 197.9s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 187.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3226 SDtfs, 29724 SDslu, 3232 SDs, 0 SdLazy, 42183 SolverSat, 11381 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 149.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 326 GetRequests, 295 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46686occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.5s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9962416821932392 AbsIntWeakeningRatio, 0.11764705882352941 AbsIntAvgWeakeningVarsNumRemoved, 1039.6851211072665 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 500 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 819 NumberOfCodeBlocks, 819 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 814 ConstructedInterpolants, 0 QuantifiedInterpolants, 505879 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 428/562 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown