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 0.1.23-1dbac8b [2018-10-27 03:33:02,508 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 03:33:02,510 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 03:33:02,522 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 03:33:02,522 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 03:33:02,523 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 03:33:02,526 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 03:33:02,532 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 03:33:02,534 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 03:33:02,535 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 03:33:02,536 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 03:33:02,536 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 03:33:02,537 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 03:33:02,538 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 03:33:02,539 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 03:33:02,540 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 03:33:02,541 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 03:33:02,543 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 03:33:02,545 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 03:33:02,547 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 03:33:02,548 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 03:33:02,549 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 03:33:02,552 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-27 03:33:02,562 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-27 03:33:02,580 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 03:33:02,581 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 03:33:02,581 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 03:33:02,582 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 03:33:02,582 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 03:33:02,582 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 03:33:02,582 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 03:33:02,582 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 03:33:02,582 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 03:33:02,583 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 03:33:02,583 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 03:33:02,583 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 03:33:02,584 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 03:33:02,584 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 03:33:02,584 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 03:33:02,584 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 03:33:02,584 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 03:33:02,585 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 03:33:02,585 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 03:33:02,585 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 03:33:02,585 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 03:33:02,585 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 03:33:02,586 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 03:33:02,586 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 03:33:02,586 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 03:33:02,586 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 03:33:02,586 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 03:33:02,587 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 03:33:02,587 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 03:33:02,587 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 03:33:02,587 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 03:33:02,587 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 03:33:02,587 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 03:33:02,588 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 03:33:02,631 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 03:33:02,649 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 03:33:02,654 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 03:33:02,656 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 03:33:02,656 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 03:33:02,657 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label24_true-unreach-call.c [2018-10-27 03:33:02,724 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/524c2232e/d77af46671584c70a0e24b5334514bb7/FLAG03b6cf2f3 [2018-10-27 03:33:03,456 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 03:33:03,457 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label24_true-unreach-call.c [2018-10-27 03:33:03,486 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/524c2232e/d77af46671584c70a0e24b5334514bb7/FLAG03b6cf2f3 [2018-10-27 03:33:03,504 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/524c2232e/d77af46671584c70a0e24b5334514bb7 [2018-10-27 03:33:03,518 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 03:33:03,520 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 03:33:03,522 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 03:33:03,522 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 03:33:03,529 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 03:33:03,530 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:33:03" (1/1) ... [2018-10-27 03:33:03,534 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7670273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:03, skipping insertion in model container [2018-10-27 03:33:03,535 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:33:03" (1/1) ... [2018-10-27 03:33:03,547 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 03:33:03,661 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 03:33:04,594 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 03:33:04,599 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 03:33:05,007 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 03:33:05,032 INFO L193 MainTranslator]: Completed translation [2018-10-27 03:33:05,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:05 WrapperNode [2018-10-27 03:33:05,033 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 03:33:05,034 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 03:33:05,034 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 03:33:05,034 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 03:33:05,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:05" (1/1) ... [2018-10-27 03:33:05,095 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:05" (1/1) ... [2018-10-27 03:33:05,512 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 03:33:05,513 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 03:33:05,513 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 03:33:05,513 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 03:33:05,524 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:05" (1/1) ... [2018-10-27 03:33:05,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:05" (1/1) ... [2018-10-27 03:33:05,554 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:05" (1/1) ... [2018-10-27 03:33:05,555 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:05" (1/1) ... [2018-10-27 03:33:05,669 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:05" (1/1) ... [2018-10-27 03:33:05,689 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:05" (1/1) ... [2018-10-27 03:33:05,740 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:05" (1/1) ... [2018-10-27 03:33:05,790 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 03:33:05,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 03:33:05,790 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 03:33:05,791 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 03:33:05,791 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 03:33:05,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 03:33:05,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 03:33:05,862 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 03:33:05,862 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 03:33:05,862 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 03:33:05,862 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 03:33:05,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 03:33:05,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 03:33:05,864 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 03:33:05,864 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 03:33:16,163 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 03:33:16,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:33:16 BoogieIcfgContainer [2018-10-27 03:33:16,164 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 03:33:16,166 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 03:33:16,166 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 03:33:16,169 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 03:33:16,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:33:03" (1/3) ... [2018-10-27 03:33:16,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34780d5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:33:16, skipping insertion in model container [2018-10-27 03:33:16,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:05" (2/3) ... [2018-10-27 03:33:16,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34780d5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:33:16, skipping insertion in model container [2018-10-27 03:33:16,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:33:16" (3/3) ... [2018-10-27 03:33:16,173 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label24_true-unreach-call.c [2018-10-27 03:33:16,183 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 03:33:16,193 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 03:33:16,211 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 03:33:16,271 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 03:33:16,272 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 03:33:16,272 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 03:33:16,272 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 03:33:16,272 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 03:33:16,272 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 03:33:16,272 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 03:33:16,273 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 03:33:16,305 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-10-27 03:33:16,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-10-27 03:33:16,319 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:33:16,321 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] [2018-10-27 03:33:16,323 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:33:16,328 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:33:16,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1873731430, now seen corresponding path program 1 times [2018-10-27 03:33:16,332 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:33:16,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:33:16,384 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:33:16,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:33:16,385 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:33:16,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:33:16,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:33:16,918 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:33:16,919 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 03:33:16,919 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:33:16,925 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 03:33:16,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 03:33:16,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 03:33:16,944 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-10-27 03:33:27,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:33:27,848 INFO L93 Difference]: Finished difference Result 2133 states and 3959 transitions. [2018-10-27 03:33:27,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 03:33:27,851 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 67 [2018-10-27 03:33:27,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:33:27,882 INFO L225 Difference]: With dead ends: 2133 [2018-10-27 03:33:27,882 INFO L226 Difference]: Without dead ends: 1523 [2018-10-27 03:33:27,895 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 03:33:27,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1523 states. [2018-10-27 03:33:28,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1523 to 1516. [2018-10-27 03:33:28,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1516 states. [2018-10-27 03:33:28,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1516 states to 1516 states and 2287 transitions. [2018-10-27 03:33:28,062 INFO L78 Accepts]: Start accepts. Automaton has 1516 states and 2287 transitions. Word has length 67 [2018-10-27 03:33:28,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:33:28,063 INFO L481 AbstractCegarLoop]: Abstraction has 1516 states and 2287 transitions. [2018-10-27 03:33:28,063 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 03:33:28,063 INFO L276 IsEmpty]: Start isEmpty. Operand 1516 states and 2287 transitions. [2018-10-27 03:33:28,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-10-27 03:33:28,078 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:33:28,079 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] [2018-10-27 03:33:28,079 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:33:28,079 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:33:28,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1143793551, now seen corresponding path program 1 times [2018-10-27 03:33:28,080 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:33:28,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:33:28,082 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:33:28,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:33:28,082 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:33:28,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:33:28,461 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:33:28,462 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 03:33:28,462 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 03:33:28,463 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 143 with the following transitions: [2018-10-27 03:33:28,465 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] [2018-10-27 03:33:28,533 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 03:33:28,533 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 03:33:30,060 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 03:33:49,232 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 03:33:49,233 INFO L272 AbstractInterpreter]: Visited 83 different actions 544 times. Merged at 5 different actions 30 times. Widened at 1 different actions 2 times. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-10-27 03:33:49,246 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:33:49,247 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 03:33:49,247 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 03:33:49,247 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 03:33:49,264 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:33:49,264 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 03:33:49,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:33:49,348 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 03:34:16,082 WARN L179 SmtUtils]: Spent 24.22 s on a formula simplification. DAG size of input: 135 DAG size of output: 98 [2018-10-27 03:34:36,369 WARN L179 SmtUtils]: Spent 16.10 s on a formula simplification. DAG size of input: 98 DAG size of output: 73 [2018-10-27 03:34:37,143 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 4 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:34:37,144 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 03:34:39,723 WARN L179 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 133 DAG size of output: 16 [2018-10-27 03:34:39,805 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 28 [2018-10-27 03:34:42,333 WARN L179 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 26 [2018-10-27 03:34:42,646 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:34:42,680 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-10-27 03:34:42,680 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 15 [2018-10-27 03:34:42,681 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:34:42,682 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 03:34:42,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 03:34:42,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=162, Unknown=3, NotChecked=0, Total=210 [2018-10-27 03:34:42,684 INFO L87 Difference]: Start difference. First operand 1516 states and 2287 transitions. Second operand 6 states. [2018-10-27 03:35:37,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:35:37,451 INFO L93 Difference]: Finished difference Result 5735 states and 8894 transitions. [2018-10-27 03:35:37,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-27 03:35:37,453 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 142 [2018-10-27 03:35:37,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:35:37,489 INFO L225 Difference]: With dead ends: 5735 [2018-10-27 03:35:37,489 INFO L226 Difference]: Without dead ends: 4225 [2018-10-27 03:35:37,501 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 278 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 52.1s TimeCoverageRelationStatistics Valid=45, Invalid=162, Unknown=3, NotChecked=0, Total=210 [2018-10-27 03:35:37,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4225 states. [2018-10-27 03:35:37,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4225 to 4194. [2018-10-27 03:35:37,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4194 states. [2018-10-27 03:35:37,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4194 states to 4194 states and 6149 transitions. [2018-10-27 03:35:37,658 INFO L78 Accepts]: Start accepts. Automaton has 4194 states and 6149 transitions. Word has length 142 [2018-10-27 03:35:37,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:35:37,659 INFO L481 AbstractCegarLoop]: Abstraction has 4194 states and 6149 transitions. [2018-10-27 03:35:37,659 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 03:35:37,659 INFO L276 IsEmpty]: Start isEmpty. Operand 4194 states and 6149 transitions. [2018-10-27 03:35:37,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2018-10-27 03:35:37,670 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:35:37,671 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] [2018-10-27 03:35:37,671 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:35:37,671 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:35:37,672 INFO L82 PathProgramCache]: Analyzing trace with hash 2048723862, now seen corresponding path program 1 times [2018-10-27 03:35:37,672 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:35:37,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:35:37,673 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:35:37,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:35:37,673 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:35:37,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:35:37,996 WARN L179 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 03:35:38,305 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:35:38,305 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:35:38,305 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 03:35:38,305 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:35:38,306 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 03:35:38,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 03:35:38,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 03:35:38,307 INFO L87 Difference]: Start difference. First operand 4194 states and 6149 transitions. Second operand 6 states. [2018-10-27 03:35:44,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:35:44,113 INFO L93 Difference]: Finished difference Result 12521 states and 19256 transitions. [2018-10-27 03:35:44,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 03:35:44,121 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 183 [2018-10-27 03:35:44,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:35:44,198 INFO L225 Difference]: With dead ends: 12521 [2018-10-27 03:35:44,198 INFO L226 Difference]: Without dead ends: 8333 [2018-10-27 03:35:44,224 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 03:35:44,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8333 states. [2018-10-27 03:35:44,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8333 to 8269. [2018-10-27 03:35:44,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8269 states. [2018-10-27 03:35:44,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8269 states to 8269 states and 11729 transitions. [2018-10-27 03:35:44,469 INFO L78 Accepts]: Start accepts. Automaton has 8269 states and 11729 transitions. Word has length 183 [2018-10-27 03:35:44,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:35:44,469 INFO L481 AbstractCegarLoop]: Abstraction has 8269 states and 11729 transitions. [2018-10-27 03:35:44,470 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 03:35:44,470 INFO L276 IsEmpty]: Start isEmpty. Operand 8269 states and 11729 transitions. [2018-10-27 03:35:44,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2018-10-27 03:35:44,476 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:35:44,476 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] [2018-10-27 03:35:44,476 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:35:44,477 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:35:44,477 INFO L82 PathProgramCache]: Analyzing trace with hash 1461289562, now seen corresponding path program 1 times [2018-10-27 03:35:44,477 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:35:44,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:35:44,478 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:35:44,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:35:44,478 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:35:44,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:35:44,785 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:35:44,786 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:35:44,786 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-27 03:35:44,786 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:35:44,787 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-27 03:35:44,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-27 03:35:44,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-27 03:35:44,787 INFO L87 Difference]: Start difference. First operand 8269 states and 11729 transitions. Second operand 7 states. [2018-10-27 03:36:07,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:36:07,040 INFO L93 Difference]: Finished difference Result 24271 states and 40253 transitions. [2018-10-27 03:36:07,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-27 03:36:07,042 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 201 [2018-10-27 03:36:07,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:36:07,257 INFO L225 Difference]: With dead ends: 24271 [2018-10-27 03:36:07,257 INFO L226 Difference]: Without dead ends: 16008 [2018-10-27 03:36:07,351 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-27 03:36:07,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16008 states. [2018-10-27 03:36:07,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16008 to 15763. [2018-10-27 03:36:07,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15763 states. [2018-10-27 03:36:08,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15763 states to 15763 states and 24097 transitions. [2018-10-27 03:36:08,042 INFO L78 Accepts]: Start accepts. Automaton has 15763 states and 24097 transitions. Word has length 201 [2018-10-27 03:36:08,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:36:08,042 INFO L481 AbstractCegarLoop]: Abstraction has 15763 states and 24097 transitions. [2018-10-27 03:36:08,043 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-27 03:36:08,043 INFO L276 IsEmpty]: Start isEmpty. Operand 15763 states and 24097 transitions. [2018-10-27 03:36:08,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2018-10-27 03:36:08,056 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:36:08,057 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] [2018-10-27 03:36:08,057 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:36:08,057 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:36:08,058 INFO L82 PathProgramCache]: Analyzing trace with hash 1377609661, now seen corresponding path program 1 times [2018-10-27 03:36:08,058 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:36:08,059 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:36:08,059 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:36:08,059 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:36:08,059 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:36:08,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:36:08,379 WARN L179 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 03:36:08,817 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 121 proven. 7 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-10-27 03:36:08,818 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 03:36:08,818 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 03:36:08,818 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 226 with the following transitions: [2018-10-27 03:36:08,819 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] [2018-10-27 03:36:08,829 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 03:36:08,829 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 03:36:09,898 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 03:36:29,816 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 03:36:29,817 INFO L272 AbstractInterpreter]: Visited 92 different actions 607 times. Merged at 5 different actions 30 times. Widened at 1 different actions 2 times. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-10-27 03:36:29,824 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:36:29,824 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 03:36:29,824 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 03:36:29,824 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 03:36:29,842 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:36:29,843 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 03:36:29,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:36:29,920 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 03:36:30,011 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 193 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:36:30,011 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 03:36:30,139 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 193 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:36:30,160 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 03:36:30,160 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-10-27 03:36:30,161 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 03:36:30,161 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-27 03:36:30,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-27 03:36:30,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-10-27 03:36:30,162 INFO L87 Difference]: Start difference. First operand 15763 states and 24097 transitions. Second operand 9 states. [2018-10-27 03:36:38,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:36:38,950 INFO L93 Difference]: Finished difference Result 36926 states and 57582 transitions. [2018-10-27 03:36:38,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-27 03:36:38,951 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 225 [2018-10-27 03:36:38,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:36:39,064 INFO L225 Difference]: With dead ends: 36926 [2018-10-27 03:36:39,064 INFO L226 Difference]: Without dead ends: 18468 [2018-10-27 03:36:39,136 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 448 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2018-10-27 03:36:39,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18468 states. [2018-10-27 03:36:39,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18468 to 18407. [2018-10-27 03:36:39,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18407 states. [2018-10-27 03:36:39,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18407 states to 18407 states and 23614 transitions. [2018-10-27 03:36:39,617 INFO L78 Accepts]: Start accepts. Automaton has 18407 states and 23614 transitions. Word has length 225 [2018-10-27 03:36:39,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:36:39,618 INFO L481 AbstractCegarLoop]: Abstraction has 18407 states and 23614 transitions. [2018-10-27 03:36:39,618 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-27 03:36:39,618 INFO L276 IsEmpty]: Start isEmpty. Operand 18407 states and 23614 transitions. [2018-10-27 03:36:39,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2018-10-27 03:36:39,624 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:36:39,625 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] [2018-10-27 03:36:39,625 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:36:39,625 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:36:39,626 INFO L82 PathProgramCache]: Analyzing trace with hash -881773889, now seen corresponding path program 1 times [2018-10-27 03:36:39,626 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:36:39,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:36:39,627 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:36:39,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:36:39,627 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:36:39,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:36:39,856 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-10-27 03:36:39,856 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:36:39,856 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 03:36:39,857 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:36:39,857 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 03:36:39,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 03:36:39,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 03:36:39,858 INFO L87 Difference]: Start difference. First operand 18407 states and 23614 transitions. Second operand 3 states. [2018-10-27 03:36:45,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:36:45,804 INFO L93 Difference]: Finished difference Result 42611 states and 56191 transitions. [2018-10-27 03:36:45,804 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 03:36:45,804 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 242 [2018-10-27 03:36:45,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:36:45,885 INFO L225 Difference]: With dead ends: 42611 [2018-10-27 03:36:45,885 INFO L226 Difference]: Without dead ends: 22386 [2018-10-27 03:36:45,962 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 03:36:45,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22386 states. [2018-10-27 03:36:46,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22386 to 22386. [2018-10-27 03:36:46,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22386 states. [2018-10-27 03:36:46,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22386 states to 22386 states and 28003 transitions. [2018-10-27 03:36:46,441 INFO L78 Accepts]: Start accepts. Automaton has 22386 states and 28003 transitions. Word has length 242 [2018-10-27 03:36:46,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:36:46,442 INFO L481 AbstractCegarLoop]: Abstraction has 22386 states and 28003 transitions. [2018-10-27 03:36:46,442 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 03:36:46,442 INFO L276 IsEmpty]: Start isEmpty. Operand 22386 states and 28003 transitions. [2018-10-27 03:36:46,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2018-10-27 03:36:46,451 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:36:46,451 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] [2018-10-27 03:36:46,451 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:36:46,451 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:36:46,452 INFO L82 PathProgramCache]: Analyzing trace with hash 842603431, now seen corresponding path program 1 times [2018-10-27 03:36:46,452 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:36:46,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:36:46,453 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:36:46,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:36:46,453 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:36:46,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:36:46,780 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 03:36:47,589 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 133 proven. 68 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-27 03:36:47,589 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 03:36:47,589 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 03:36:47,590 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 272 with the following transitions: [2018-10-27 03:36:47,590 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] [2018-10-27 03:36:47,596 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 03:36:47,596 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 03:36:48,727 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-27 03:37:07,106 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-10-27 03:37:07,107 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-10-27 03:37:07,107 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-27 03:37:07,107 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 03:37:07,107 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 03:37:07,116 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:37:07,116 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 03:37:07,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:37:07,212 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 03:37:07,253 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-27 03:37:07,454 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 03:37:07,455 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 03:37:07,461 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 03:37:07,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:37:07 BoogieIcfgContainer [2018-10-27 03:37:07,462 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 03:37:07,462 INFO L168 Benchmark]: Toolchain (without parser) took 243943.66 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 1.9 GB in the end (delta: -480.6 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-10-27 03:37:07,464 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 03:37:07,464 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1511.55 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. [2018-10-27 03:37:07,465 INFO L168 Benchmark]: Boogie Procedure Inliner took 478.92 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 784.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -936.2 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. [2018-10-27 03:37:07,466 INFO L168 Benchmark]: Boogie Preprocessor took 276.95 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: 42.7 MB). Peak memory consumption was 42.7 MB. Max. memory is 7.1 GB. [2018-10-27 03:37:07,467 INFO L168 Benchmark]: RCFGBuilder took 10374.35 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: 468.1 MB). Peak memory consumption was 468.1 MB. Max. memory is 7.1 GB. [2018-10-27 03:37:07,467 INFO L168 Benchmark]: TraceAbstraction took 231296.06 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 1.9 GB in the end (delta: -192.5 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-10-27 03:37:07,473 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1511.55 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 478.92 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 784.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -936.2 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 276.95 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: 42.7 MB). Peak memory consumption was 42.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10374.35 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: 468.1 MB). Peak memory consumption was 468.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 231296.06 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 1.9 GB in the end (delta: -192.5 MB). Peak memory consumption was 1.6 GB. 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, 231.2s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 109.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2281 SDtfs, 11613 SDslu, 1798 SDs, 0 SdLazy, 18938 SolverSat, 5668 SolverUnsat, 13 SolverUnknown, 0 SolverNotchecked, 100.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 791 GetRequests, 739 SyntacticMatches, 5 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 53.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22386occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 61.3s AbstIntTime, 3 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 408 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 55.7s InterpolantComputationTime, 1427 NumberOfCodeBlocks, 1427 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1784 ConstructedInterpolants, 141 QuantifiedInterpolants, 2814486 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