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_label24_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-24 02:04:12,827 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 02:04:12,828 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 02:04:12,840 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 02:04:12,841 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 02:04:12,842 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 02:04:12,843 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 02:04:12,845 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 02:04:12,846 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 02:04:12,847 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 02:04:12,848 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 02:04:12,848 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 02:04:12,849 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 02:04:12,850 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 02:04:12,851 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 02:04:12,852 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 02:04:12,853 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 02:04:12,855 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 02:04:12,857 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 02:04:12,859 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 02:04:12,860 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 02:04:12,861 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 02:04:12,863 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 02:04:12,864 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 02:04:12,864 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 02:04:12,865 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 02:04:12,866 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 02:04:12,867 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 02:04:12,867 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 02:04:12,869 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 02:04:12,869 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 02:04:12,870 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 02:04:12,870 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 02:04:12,870 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 02:04:12,871 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 02:04:12,872 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 02:04:12,872 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 02:04:12,899 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 02:04:12,900 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 02:04:12,901 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 02:04:12,901 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 02:04:12,901 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 02:04:12,904 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 02:04:12,904 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 02:04:12,905 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 02:04:12,905 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 02:04:12,905 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 02:04:12,905 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 02:04:12,905 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 02:04:12,907 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 02:04:12,907 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 02:04:12,907 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 02:04:12,907 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 02:04:12,907 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 02:04:12,908 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 02:04:12,908 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 02:04:12,908 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 02:04:12,908 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 02:04:12,908 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 02:04:12,910 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 02:04:12,910 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 02:04:12,910 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 02:04:12,910 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 02:04:12,911 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 02:04:12,911 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 02:04:12,911 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 02:04:12,911 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 02:04:12,911 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 02:04:12,911 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 02:04:12,912 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 02:04:12,912 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 02:04:12,975 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 02:04:12,996 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 02:04:12,999 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 02:04:13,001 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 02:04:13,001 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 02:04:13,002 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label24_true-unreach-call.c [2018-10-24 02:04:13,071 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c11a9dd3b/b2fdb739d4214841ac33d38fa1de56b6/FLAGc5f82b434 [2018-10-24 02:04:13,813 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 02:04:13,814 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label24_true-unreach-call.c [2018-10-24 02:04:13,838 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c11a9dd3b/b2fdb739d4214841ac33d38fa1de56b6/FLAGc5f82b434 [2018-10-24 02:04:13,854 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c11a9dd3b/b2fdb739d4214841ac33d38fa1de56b6 [2018-10-24 02:04:13,867 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 02:04:13,868 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 02:04:13,870 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 02:04:13,870 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 02:04:13,874 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 02:04:13,875 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:04:13" (1/1) ... [2018-10-24 02:04:13,878 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21ab7bd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:04:13, skipping insertion in model container [2018-10-24 02:04:13,878 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:04:13" (1/1) ... [2018-10-24 02:04:13,889 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 02:04:13,999 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 02:04:15,009 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 02:04:15,014 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 02:04:15,439 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 02:04:15,463 INFO L193 MainTranslator]: Completed translation [2018-10-24 02:04:15,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:04:15 WrapperNode [2018-10-24 02:04:15,464 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 02:04:15,465 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 02:04:15,465 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 02:04:15,466 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 02:04:15,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:04:15" (1/1) ... [2018-10-24 02:04:15,552 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:04:15" (1/1) ... [2018-10-24 02:04:15,960 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 02:04:15,961 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 02:04:15,961 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 02:04:15,961 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 02:04:15,971 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:04:15" (1/1) ... [2018-10-24 02:04:15,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:04:15" (1/1) ... [2018-10-24 02:04:16,002 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:04:15" (1/1) ... [2018-10-24 02:04:16,003 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:04:15" (1/1) ... [2018-10-24 02:04:16,108 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:04:15" (1/1) ... [2018-10-24 02:04:16,145 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:04:15" (1/1) ... [2018-10-24 02:04:16,185 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:04:15" (1/1) ... [2018-10-24 02:04:16,217 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 02:04:16,217 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 02:04:16,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 02:04:16,218 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 02:04:16,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:04:15" (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 02:04:16,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 02:04:16,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 02:04:16,292 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 02:04:16,292 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 02:04:16,292 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 02:04:16,293 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 02:04:16,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 02:04:16,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 02:04:16,293 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 02:04:16,293 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 02:04:26,620 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 02:04:26,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:04:26 BoogieIcfgContainer [2018-10-24 02:04:26,621 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 02:04:26,622 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 02:04:26,622 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 02:04:26,625 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 02:04:26,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:04:13" (1/3) ... [2018-10-24 02:04:26,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56801acb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:04:26, skipping insertion in model container [2018-10-24 02:04:26,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:04:15" (2/3) ... [2018-10-24 02:04:26,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56801acb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:04:26, skipping insertion in model container [2018-10-24 02:04:26,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:04:26" (3/3) ... [2018-10-24 02:04:26,629 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label24_true-unreach-call.c [2018-10-24 02:04:26,640 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 02:04:26,649 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 02:04:26,668 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 02:04:26,712 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 02:04:26,713 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 02:04:26,713 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 02:04:26,713 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 02:04:26,713 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 02:04:26,714 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 02:04:26,714 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 02:04:26,714 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 02:04:26,750 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-10-24 02:04:26,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-10-24 02:04:26,761 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:04:26,762 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] [2018-10-24 02:04:26,765 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:04:26,771 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:04:26,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1873731430, now seen corresponding path program 1 times [2018-10-24 02:04:26,775 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:04:26,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:04:26,835 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:04:26,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:04:26,835 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:04:26,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:04:27,351 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 02:04:27,354 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 02:04:27,354 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 02:04:27,355 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:04:27,362 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 02:04:27,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 02:04:27,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 02:04:27,381 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-10-24 02:04:40,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:04:40,103 INFO L93 Difference]: Finished difference Result 2133 states and 3959 transitions. [2018-10-24 02:04:40,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 02:04:40,104 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 67 [2018-10-24 02:04:40,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:04:40,139 INFO L225 Difference]: With dead ends: 2133 [2018-10-24 02:04:40,139 INFO L226 Difference]: Without dead ends: 1523 [2018-10-24 02:04:40,150 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 02:04:40,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1523 states. [2018-10-24 02:04:40,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1523 to 1516. [2018-10-24 02:04:40,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1516 states. [2018-10-24 02:04:40,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1516 states to 1516 states and 2287 transitions. [2018-10-24 02:04:40,300 INFO L78 Accepts]: Start accepts. Automaton has 1516 states and 2287 transitions. Word has length 67 [2018-10-24 02:04:40,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:04:40,301 INFO L481 AbstractCegarLoop]: Abstraction has 1516 states and 2287 transitions. [2018-10-24 02:04:40,301 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 02:04:40,302 INFO L276 IsEmpty]: Start isEmpty. Operand 1516 states and 2287 transitions. [2018-10-24 02:04:40,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-10-24 02:04:40,309 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:04:40,310 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, 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 02:04:40,310 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:04:40,310 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:04:40,311 INFO L82 PathProgramCache]: Analyzing trace with hash -1143793551, now seen corresponding path program 1 times [2018-10-24 02:04:40,311 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:04:40,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:04:40,312 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:04:40,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:04:40,312 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:04:40,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:04:40,865 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-10-24 02:04:41,140 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 02:04:41,140 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 02:04:41,140 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 02:04:41,141 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 143 with the following transitions: [2018-10-24 02:04:41,144 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], [1146], [1148], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-24 02:04:41,213 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 02:04:41,213 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 02:04:42,747 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 02:05:00,795 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-24 02:05:00,796 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. [2018-10-24 02:05:00,808 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:05:00,810 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-24 02:05:00,810 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 02:05:00,810 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 [2018-10-24 02:05:00,821 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:05:00,822 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 02:05:00,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:05:00,915 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 02:05:36,239 WARN L179 SmtUtils]: Spent 32.74 s on a formula simplification. DAG size of input: 135 DAG size of output: 83 [2018-10-24 02:05:56,507 WARN L179 SmtUtils]: Spent 16.09 s on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2018-10-24 02:05:57,273 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 4 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 02:05:57,274 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-24 02:05:57,866 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2018-10-24 02:05:57,972 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2018-10-24 02:06:00,573 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 28 [2018-10-24 02:06:03,219 WARN L179 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 26 [2018-10-24 02:06:03,513 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 02:06:03,535 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-10-24 02:06:03,536 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 15 [2018-10-24 02:06:03,536 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:06:03,537 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 02:06:03,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 02:06:03,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=161, Unknown=4, NotChecked=0, Total=210 [2018-10-24 02:06:03,538 INFO L87 Difference]: Start difference. First operand 1516 states and 2287 transitions. Second operand 6 states. [2018-10-24 02:07:04,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:07:04,682 INFO L93 Difference]: Finished difference Result 5736 states and 8888 transitions. [2018-10-24 02:07:04,686 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 02:07:04,686 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 142 [2018-10-24 02:07:04,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:07:04,720 INFO L225 Difference]: With dead ends: 5736 [2018-10-24 02:07:04,721 INFO L226 Difference]: Without dead ends: 4226 [2018-10-24 02:07:04,734 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 278 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 61.6s TimeCoverageRelationStatistics Valid=45, Invalid=161, Unknown=4, NotChecked=0, Total=210 [2018-10-24 02:07:04,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4226 states. [2018-10-24 02:07:04,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4226 to 4195. [2018-10-24 02:07:04,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4195 states. [2018-10-24 02:07:04,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4195 states to 4195 states and 6143 transitions. [2018-10-24 02:07:04,890 INFO L78 Accepts]: Start accepts. Automaton has 4195 states and 6143 transitions. Word has length 142 [2018-10-24 02:07:04,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:07:04,891 INFO L481 AbstractCegarLoop]: Abstraction has 4195 states and 6143 transitions. [2018-10-24 02:07:04,891 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 02:07:04,891 INFO L276 IsEmpty]: Start isEmpty. Operand 4195 states and 6143 transitions. [2018-10-24 02:07:04,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2018-10-24 02:07:04,909 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:07:04,909 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:04,910 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:07:04,913 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:07:04,914 INFO L82 PathProgramCache]: Analyzing trace with hash 2048723862, now seen corresponding path program 1 times [2018-10-24 02:07:04,914 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:07:04,915 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:07:04,915 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:07:04,915 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:07:04,916 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:07:04,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:07:05,329 WARN L179 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 02:07:05,758 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 02:07:05,759 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 02:07:05,759 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 02:07:05,759 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:07:05,760 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 02:07:05,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 02:07:05,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 02:07:05,761 INFO L87 Difference]: Start difference. First operand 4195 states and 6143 transitions. Second operand 6 states. [2018-10-24 02:07:15,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:07:15,182 INFO L93 Difference]: Finished difference Result 12518 states and 19237 transitions. [2018-10-24 02:07:15,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 02:07:15,188 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 183 [2018-10-24 02:07:15,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:07:15,246 INFO L225 Difference]: With dead ends: 12518 [2018-10-24 02:07:15,247 INFO L226 Difference]: Without dead ends: 8329 [2018-10-24 02:07:15,271 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 02:07:15,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8329 states. [2018-10-24 02:07:15,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8329 to 8265. [2018-10-24 02:07:15,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8265 states. [2018-10-24 02:07:15,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8265 states to 8265 states and 11725 transitions. [2018-10-24 02:07:15,518 INFO L78 Accepts]: Start accepts. Automaton has 8265 states and 11725 transitions. Word has length 183 [2018-10-24 02:07:15,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:07:15,519 INFO L481 AbstractCegarLoop]: Abstraction has 8265 states and 11725 transitions. [2018-10-24 02:07:15,522 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 02:07:15,522 INFO L276 IsEmpty]: Start isEmpty. Operand 8265 states and 11725 transitions. [2018-10-24 02:07:15,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2018-10-24 02:07:15,533 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:07:15,533 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:15,534 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:07:15,534 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:07:15,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1461289562, now seen corresponding path program 1 times [2018-10-24 02:07:15,534 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:07:15,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:07:15,536 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:07:15,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:07:15,536 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:07:15,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:07:15,985 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 02:07:15,986 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 02:07:15,986 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-24 02:07:15,986 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:07:15,987 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 02:07:15,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 02:07:15,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 02:07:15,987 INFO L87 Difference]: Start difference. First operand 8265 states and 11725 transitions. Second operand 7 states. [2018-10-24 02:07:41,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:07:41,916 INFO L93 Difference]: Finished difference Result 24705 states and 40658 transitions. [2018-10-24 02:07:41,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-24 02:07:41,917 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 201 [2018-10-24 02:07:41,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:07:42,080 INFO L225 Difference]: With dead ends: 24705 [2018-10-24 02:07:42,081 INFO L226 Difference]: Without dead ends: 16446 [2018-10-24 02:07:42,163 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-24 02:07:42,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16446 states. [2018-10-24 02:07:42,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16446 to 16191. [2018-10-24 02:07:42,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16191 states. [2018-10-24 02:07:42,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16191 states to 16191 states and 24634 transitions. [2018-10-24 02:07:42,745 INFO L78 Accepts]: Start accepts. Automaton has 16191 states and 24634 transitions. Word has length 201 [2018-10-24 02:07:42,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:07:42,745 INFO L481 AbstractCegarLoop]: Abstraction has 16191 states and 24634 transitions. [2018-10-24 02:07:42,746 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 02:07:42,746 INFO L276 IsEmpty]: Start isEmpty. Operand 16191 states and 24634 transitions. [2018-10-24 02:07:42,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2018-10-24 02:07:42,760 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:07:42,762 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 02:07:42,762 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:07:42,762 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:07:42,763 INFO L82 PathProgramCache]: Analyzing trace with hash 1377609661, now seen corresponding path program 1 times [2018-10-24 02:07:42,763 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:07:42,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:07:42,764 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:07:42,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:07:42,764 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:07:42,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:07:43,072 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 121 proven. 7 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-10-24 02:07:43,073 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 02:07:43,073 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 02:07:43,073 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 226 with the following transitions: [2018-10-24 02:07:43,073 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], [1146], [1148], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1262], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-24 02:07:43,079 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 02:07:43,079 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 02:07:43,902 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 02:08:02,109 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-24 02:08:02,110 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. [2018-10-24 02:08:02,129 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:08:02,129 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-24 02:08:02,129 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 02:08:02,129 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 [2018-10-24 02:08:02,144 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:08:02,144 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 02:08:02,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:08:02,235 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 02:08:02,477 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 193 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 02:08:02,478 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-24 02:08:02,723 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 193 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 02:08:02,744 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-24 02:08:02,744 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-10-24 02:08:02,744 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-24 02:08:02,746 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-24 02:08:02,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-24 02:08:02,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-10-24 02:08:02,746 INFO L87 Difference]: Start difference. First operand 16191 states and 24634 transitions. Second operand 9 states. [2018-10-24 02:08:12,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:08:12,126 INFO L93 Difference]: Finished difference Result 37799 states and 58878 transitions. [2018-10-24 02:08:12,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-24 02:08:12,127 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 225 [2018-10-24 02:08:12,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:08:12,206 INFO L225 Difference]: With dead ends: 37799 [2018-10-24 02:08:12,206 INFO L226 Difference]: Without dead ends: 18913 [2018-10-24 02:08:12,270 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 448 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2018-10-24 02:08:12,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18913 states. [2018-10-24 02:08:12,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18913 to 18844. [2018-10-24 02:08:12,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18844 states. [2018-10-24 02:08:12,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18844 states to 18844 states and 24249 transitions. [2018-10-24 02:08:12,718 INFO L78 Accepts]: Start accepts. Automaton has 18844 states and 24249 transitions. Word has length 225 [2018-10-24 02:08:12,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:08:12,718 INFO L481 AbstractCegarLoop]: Abstraction has 18844 states and 24249 transitions. [2018-10-24 02:08:12,718 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-24 02:08:12,719 INFO L276 IsEmpty]: Start isEmpty. Operand 18844 states and 24249 transitions. [2018-10-24 02:08:12,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2018-10-24 02:08:12,731 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:08:12,731 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 02:08:12,731 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:08:12,732 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:08:12,732 INFO L82 PathProgramCache]: Analyzing trace with hash -881773889, now seen corresponding path program 1 times [2018-10-24 02:08:12,732 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:08:12,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:08:12,733 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:08:12,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:08:12,733 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:08:12,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:08:12,941 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-10-24 02:08:12,941 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 02:08:12,942 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 02:08:12,942 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:08:12,942 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 02:08:12,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 02:08:12,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 02:08:12,943 INFO L87 Difference]: Start difference. First operand 18844 states and 24249 transitions. Second operand 3 states. [2018-10-24 02:08:18,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:08:18,005 INFO L93 Difference]: Finished difference Result 44357 states and 58928 transitions. [2018-10-24 02:08:18,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 02:08:18,006 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 242 [2018-10-24 02:08:18,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:08:18,074 INFO L225 Difference]: With dead ends: 44357 [2018-10-24 02:08:18,074 INFO L226 Difference]: Without dead ends: 23695 [2018-10-24 02:08:18,150 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 [2018-10-24 02:08:18,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23695 states. [2018-10-24 02:08:18,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23695 to 23695. [2018-10-24 02:08:18,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23695 states. [2018-10-24 02:08:18,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23695 states to 23695 states and 29566 transitions. [2018-10-24 02:08:18,604 INFO L78 Accepts]: Start accepts. Automaton has 23695 states and 29566 transitions. Word has length 242 [2018-10-24 02:08:18,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:08:18,605 INFO L481 AbstractCegarLoop]: Abstraction has 23695 states and 29566 transitions. [2018-10-24 02:08:18,605 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 02:08:18,605 INFO L276 IsEmpty]: Start isEmpty. Operand 23695 states and 29566 transitions. [2018-10-24 02:08:18,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2018-10-24 02:08:18,613 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:08:18,613 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, 2, 2, 2, 2, 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] [2018-10-24 02:08:18,614 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:08:18,614 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:08:18,614 INFO L82 PathProgramCache]: Analyzing trace with hash 842603431, now seen corresponding path program 1 times [2018-10-24 02:08:18,614 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:08:18,615 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:08:18,615 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:08:18,615 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:08:18,616 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:08:18,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:08:19,025 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 133 proven. 68 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-24 02:08:19,025 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 02:08:19,025 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 02:08:19,026 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 272 with the following transitions: [2018-10-24 02:08:19,026 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], [1146], [1148], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [1283], [1287], [1291], [1295], [1299], [1303], [1307], [1318], [1322], [1326], [1330], [1334], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1385], [1389], [1393], [1397], [1401], [1405], [1408], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-24 02:08:19,032 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 02:08:19,032 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-10-24 02:08:19,849 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-10-24 02:08:19,850 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-10-24 02:08:19,850 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-24 02:08:19,850 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 02:08:19,850 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 [2018-10-24 02:08:19,859 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:08:19,859 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 02:08:19,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:08:19,942 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 02:08:19,966 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-24 02:08:20,167 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 02:08:20,167 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 02:08:20,173 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 02:08:20,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:08:20 BoogieIcfgContainer [2018-10-24 02:08:20,173 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 02:08:20,174 INFO L168 Benchmark]: Toolchain (without parser) took 246306.31 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 3.1 GB in the end (delta: -1.6 GB). Peak memory consumption was 992.7 MB. Max. memory is 7.1 GB. [2018-10-24 02:08:20,175 INFO L168 Benchmark]: CDTParser took 0.20 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 02:08:20,175 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1595.12 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. [2018-10-24 02:08:20,176 INFO L168 Benchmark]: Boogie Procedure Inliner took 495.02 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 792.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -944.5 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. [2018-10-24 02:08:20,177 INFO L168 Benchmark]: Boogie Preprocessor took 256.38 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: 42.4 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. [2018-10-24 02:08:20,178 INFO L168 Benchmark]: RCFGBuilder took 10403.75 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: 454.0 MB). Peak memory consumption was 454.0 MB. Max. memory is 7.1 GB. [2018-10-24 02:08:20,179 INFO L168 Benchmark]: TraceAbstraction took 233550.95 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 3.1 GB in the end (delta: -1.3 GB). Peak memory consumption was 510.7 MB. Max. memory is 7.1 GB. [2018-10-24 02:08:20,184 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1595.12 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 495.02 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 792.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -944.5 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 256.38 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: 42.4 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10403.75 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: 454.0 MB). Peak memory consumption was 454.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 233550.95 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 3.1 GB in the end (delta: -1.3 GB). Peak memory consumption was 510.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 188]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 188). Cancelled while BasicCegarLoop was analyzing trace of length 272 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, 233.4s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 124.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2281 SDtfs, 14213 SDslu, 1794 SDs, 0 SdLazy, 18950 SolverSat, 5813 SolverUnsat, 19 SolverUnknown, 0 SolverNotchecked, 115.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 791 GetRequests, 739 SyntacticMatches, 5 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 63.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23695occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 39.5s AbstIntTime, 3 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 426 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 65.6s InterpolantComputationTime, 1427 NumberOfCodeBlocks, 1427 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1784 ConstructedInterpolants, 141 QuantifiedInterpolants, 2804334 SizeOfPredicates, 4 NumberOfNonLiveVariables, 717 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 10 InterpolantComputations, 5 PerfectInterpolantSequences, 965/1092 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown