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/Problem15_label39_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 18:41:00,409 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 18:41:00,411 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 18:41:00,423 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 18:41:00,423 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 18:41:00,424 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 18:41:00,426 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 18:41:00,427 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 18:41:00,429 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 18:41:00,432 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 18:41:00,433 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 18:41:00,433 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 18:41:00,434 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 18:41:00,437 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 18:41:00,440 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 18:41:00,441 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 18:41:00,442 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 18:41:00,447 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 18:41:00,452 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 18:41:00,456 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 18:41:00,457 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 18:41:00,458 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 18:41:00,464 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 18:41:00,464 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 18:41:00,464 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 18:41:00,468 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 18:41:00,469 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 18:41:00,470 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 18:41:00,471 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 18:41:00,475 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 18:41:00,475 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 18:41:00,476 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-24 18:41:00,479 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 18:41:00,503 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 18:41:00,503 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 18:41:00,504 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 18:41:00,504 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 18:41:00,505 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 18:41:00,505 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 18:41:00,505 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 18:41:00,505 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 18:41:00,505 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 18:41:00,506 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 18:41:00,506 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 18:41:00,506 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 18:41:00,507 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 18:41:00,507 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 18:41:00,507 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 18:41:00,507 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 18:41:00,507 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 18:41:00,508 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 18:41:00,508 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 18:41:00,508 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 18:41:00,508 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 18:41:00,508 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 18:41:00,509 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 18:41:00,509 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 18:41:00,509 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 18:41:00,509 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 18:41:00,509 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 18:41:00,510 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 18:41:00,510 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 18:41:00,510 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 18:41:00,510 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 18:41:00,510 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 18:41:00,510 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 18:41:00,511 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 18:41:00,557 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 18:41:00,570 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 18:41:00,574 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 18:41:00,575 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 18:41:00,576 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 18:41:00,576 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label39_false-unreach-call.c [2018-10-24 18:41:00,631 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/62dbb1c13/a1351861a98f49b18c77bee62b5d83e1/FLAGa7cfaf5ef [2018-10-24 18:41:01,364 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 18:41:01,365 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label39_false-unreach-call.c [2018-10-24 18:41:01,383 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/62dbb1c13/a1351861a98f49b18c77bee62b5d83e1/FLAGa7cfaf5ef [2018-10-24 18:41:01,398 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/62dbb1c13/a1351861a98f49b18c77bee62b5d83e1 [2018-10-24 18:41:01,409 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 18:41:01,412 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 18:41:01,413 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 18:41:01,413 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 18:41:01,420 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 18:41:01,421 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:41:01" (1/1) ... [2018-10-24 18:41:01,424 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24227eaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:41:01, skipping insertion in model container [2018-10-24 18:41:01,425 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:41:01" (1/1) ... [2018-10-24 18:41:01,436 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 18:41:01,533 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 18:41:02,309 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:41:02,314 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 18:41:02,599 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:41:02,622 INFO L193 MainTranslator]: Completed translation [2018-10-24 18:41:02,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:41:02 WrapperNode [2018-10-24 18:41:02,623 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 18:41:02,624 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 18:41:02,625 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 18:41:02,625 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 18:41:02,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:41:02" (1/1) ... [2018-10-24 18:41:02,692 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:41:02" (1/1) ... [2018-10-24 18:41:03,018 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 18:41:03,018 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 18:41:03,018 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 18:41:03,019 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 18:41:03,029 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:41:02" (1/1) ... [2018-10-24 18:41:03,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:41:02" (1/1) ... [2018-10-24 18:41:03,045 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:41:02" (1/1) ... [2018-10-24 18:41:03,046 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:41:02" (1/1) ... [2018-10-24 18:41:03,116 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:41:02" (1/1) ... [2018-10-24 18:41:03,134 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:41:02" (1/1) ... [2018-10-24 18:41:03,171 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:41:02" (1/1) ... [2018-10-24 18:41:03,210 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 18:41:03,211 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 18:41:03,211 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 18:41:03,212 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 18:41:03,212 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:41:02" (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 18:41:03,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 18:41:03,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 18:41:03,281 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 18:41:03,281 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 18:41:03,281 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 18:41:03,281 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 18:41:03,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 18:41:03,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 18:41:03,282 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 18:41:03,283 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 18:41:09,876 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 18:41:09,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:41:09 BoogieIcfgContainer [2018-10-24 18:41:09,877 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 18:41:09,878 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 18:41:09,878 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 18:41:09,882 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 18:41:09,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:41:01" (1/3) ... [2018-10-24 18:41:09,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36301219 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:41:09, skipping insertion in model container [2018-10-24 18:41:09,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:41:02" (2/3) ... [2018-10-24 18:41:09,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36301219 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:41:09, skipping insertion in model container [2018-10-24 18:41:09,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:41:09" (3/3) ... [2018-10-24 18:41:09,885 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label39_false-unreach-call.c [2018-10-24 18:41:09,894 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 18:41:09,902 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 18:41:09,920 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 18:41:09,961 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 18:41:09,962 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 18:41:09,962 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 18:41:09,962 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 18:41:09,962 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 18:41:09,962 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 18:41:09,962 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 18:41:09,963 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 18:41:09,995 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-10-24 18:41:10,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-24 18:41:10,002 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:41:10,003 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:41:10,005 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:41:10,011 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:41:10,012 INFO L82 PathProgramCache]: Analyzing trace with hash -665344236, now seen corresponding path program 1 times [2018-10-24 18:41:10,014 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:41:10,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:41:10,065 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:41:10,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:41:10,065 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:41:10,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:41:10,388 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 18:41:10,390 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:41:10,390 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 18:41:10,390 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:41:10,396 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 18:41:10,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 18:41:10,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:41:10,411 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-10-24 18:41:19,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:41:19,469 INFO L93 Difference]: Finished difference Result 1558 states and 2849 transitions. [2018-10-24 18:41:19,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 18:41:19,472 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2018-10-24 18:41:19,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:41:19,501 INFO L225 Difference]: With dead ends: 1558 [2018-10-24 18:41:19,501 INFO L226 Difference]: Without dead ends: 1114 [2018-10-24 18:41:19,513 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:41:19,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2018-10-24 18:41:19,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 759. [2018-10-24 18:41:19,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 759 states. [2018-10-24 18:41:19,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 759 states to 759 states and 1355 transitions. [2018-10-24 18:41:19,630 INFO L78 Accepts]: Start accepts. Automaton has 759 states and 1355 transitions. Word has length 18 [2018-10-24 18:41:19,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:41:19,631 INFO L481 AbstractCegarLoop]: Abstraction has 759 states and 1355 transitions. [2018-10-24 18:41:19,631 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 18:41:19,631 INFO L276 IsEmpty]: Start isEmpty. Operand 759 states and 1355 transitions. [2018-10-24 18:41:19,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-10-24 18:41:19,640 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:41:19,641 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 18:41:19,641 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:41:19,641 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:41:19,641 INFO L82 PathProgramCache]: Analyzing trace with hash -190477857, now seen corresponding path program 1 times [2018-10-24 18:41:19,642 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:41:19,644 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:41:19,644 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:41:19,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:41:19,645 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:41:19,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:41:19,985 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:41:19,985 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:41:19,985 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 18:41:19,985 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:41:19,987 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 18:41:19,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 18:41:19,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 18:41:19,988 INFO L87 Difference]: Start difference. First operand 759 states and 1355 transitions. Second operand 5 states. [2018-10-24 18:41:34,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:41:34,880 INFO L93 Difference]: Finished difference Result 2506 states and 4577 transitions. [2018-10-24 18:41:34,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:41:34,891 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 88 [2018-10-24 18:41:34,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:41:34,905 INFO L225 Difference]: With dead ends: 2506 [2018-10-24 18:41:34,905 INFO L226 Difference]: Without dead ends: 1753 [2018-10-24 18:41:34,911 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-10-24 18:41:34,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1753 states. [2018-10-24 18:41:34,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1753 to 1733. [2018-10-24 18:41:34,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1733 states. [2018-10-24 18:41:35,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1733 states to 1733 states and 3007 transitions. [2018-10-24 18:41:35,003 INFO L78 Accepts]: Start accepts. Automaton has 1733 states and 3007 transitions. Word has length 88 [2018-10-24 18:41:35,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:41:35,004 INFO L481 AbstractCegarLoop]: Abstraction has 1733 states and 3007 transitions. [2018-10-24 18:41:35,004 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 18:41:35,004 INFO L276 IsEmpty]: Start isEmpty. Operand 1733 states and 3007 transitions. [2018-10-24 18:41:35,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-10-24 18:41:35,008 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:41:35,008 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 18:41:35,009 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:41:35,009 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:41:35,009 INFO L82 PathProgramCache]: Analyzing trace with hash -1516002770, now seen corresponding path program 1 times [2018-10-24 18:41:35,009 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:41:35,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:41:35,011 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:41:35,011 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:41:35,011 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:41:35,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:41:35,270 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:41:35,270 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:41:35,271 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 18:41:35,271 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:41:35,271 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 18:41:35,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 18:41:35,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-24 18:41:35,272 INFO L87 Difference]: Start difference. First operand 1733 states and 3007 transitions. Second operand 6 states. [2018-10-24 18:41:50,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:41:50,963 INFO L93 Difference]: Finished difference Result 5661 states and 10508 transitions. [2018-10-24 18:41:50,967 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-24 18:41:50,968 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 89 [2018-10-24 18:41:50,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:41:51,002 INFO L225 Difference]: With dead ends: 5661 [2018-10-24 18:41:51,002 INFO L226 Difference]: Without dead ends: 3934 [2018-10-24 18:41:51,027 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-24 18:41:51,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3934 states. [2018-10-24 18:41:51,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3934 to 3824. [2018-10-24 18:41:51,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3824 states. [2018-10-24 18:41:51,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3824 states to 3824 states and 5805 transitions. [2018-10-24 18:41:51,178 INFO L78 Accepts]: Start accepts. Automaton has 3824 states and 5805 transitions. Word has length 89 [2018-10-24 18:41:51,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:41:51,183 INFO L481 AbstractCegarLoop]: Abstraction has 3824 states and 5805 transitions. [2018-10-24 18:41:51,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 18:41:51,183 INFO L276 IsEmpty]: Start isEmpty. Operand 3824 states and 5805 transitions. [2018-10-24 18:41:51,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-10-24 18:41:51,185 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:41:51,186 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 18:41:51,186 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:41:51,186 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:41:51,186 INFO L82 PathProgramCache]: Analyzing trace with hash 1135663782, now seen corresponding path program 1 times [2018-10-24 18:41:51,187 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:41:51,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:41:51,191 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:41:51,191 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:41:51,191 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:41:51,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:41:51,525 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:41:51,526 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:41:51,526 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 18:41:51,526 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:41:51,526 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 18:41:51,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 18:41:51,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 18:41:51,527 INFO L87 Difference]: Start difference. First operand 3824 states and 5805 transitions. Second operand 6 states. [2018-10-24 18:41:58,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:41:58,113 INFO L93 Difference]: Finished difference Result 10744 states and 17613 transitions. [2018-10-24 18:41:58,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:41:58,114 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 93 [2018-10-24 18:41:58,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:41:58,161 INFO L225 Difference]: With dead ends: 10744 [2018-10-24 18:41:58,161 INFO L226 Difference]: Without dead ends: 7235 [2018-10-24 18:41:58,197 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 18:41:58,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7235 states. [2018-10-24 18:41:58,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7235 to 7182. [2018-10-24 18:41:58,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7182 states. [2018-10-24 18:41:58,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7182 states to 7182 states and 10413 transitions. [2018-10-24 18:41:58,391 INFO L78 Accepts]: Start accepts. Automaton has 7182 states and 10413 transitions. Word has length 93 [2018-10-24 18:41:58,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:41:58,392 INFO L481 AbstractCegarLoop]: Abstraction has 7182 states and 10413 transitions. [2018-10-24 18:41:58,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 18:41:58,392 INFO L276 IsEmpty]: Start isEmpty. Operand 7182 states and 10413 transitions. [2018-10-24 18:41:58,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-10-24 18:41:58,395 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:41:58,395 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:41:58,396 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:41:58,396 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:41:58,396 INFO L82 PathProgramCache]: Analyzing trace with hash 1390583197, now seen corresponding path program 1 times [2018-10-24 18:41:58,396 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:41:58,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:41:58,397 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:41:58,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:41:58,398 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:41:58,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:41:59,246 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:41:59,246 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:41:59,246 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:41:59,248 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 115 with the following transitions: [2018-10-24 18:41:59,250 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [117], [119], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-24 18:41:59,367 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:41:59,367 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:42:01,270 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:42:06,649 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-24 18:42:06,650 INFO L272 AbstractInterpreter]: Visited 104 different actions 298 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 18:42:06,664 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:42:06,665 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-24 18:42:06,665 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:42:06,665 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 18:42:06,683 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:42:06,683 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 18:42:06,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:42:06,783 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 18:42:09,424 WARN L179 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 25 [2018-10-24 18:42:11,290 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 16 [2018-10-24 18:42:11,347 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:42:11,347 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-24 18:42:11,665 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:42:11,697 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-10-24 18:42:11,698 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 6] total 11 [2018-10-24 18:42:11,698 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:42:11,698 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 18:42:11,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 18:42:11,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=78, Unknown=2, NotChecked=0, Total=110 [2018-10-24 18:42:11,699 INFO L87 Difference]: Start difference. First operand 7182 states and 10413 transitions. Second operand 3 states. [2018-10-24 18:42:15,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:42:15,200 INFO L93 Difference]: Finished difference Result 15313 states and 23203 transitions. [2018-10-24 18:42:15,204 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 18:42:15,204 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 114 [2018-10-24 18:42:15,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:42:15,261 INFO L225 Difference]: With dead ends: 15313 [2018-10-24 18:42:15,262 INFO L226 Difference]: Without dead ends: 8446 [2018-10-24 18:42:15,332 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 224 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=30, Invalid=78, Unknown=2, NotChecked=0, Total=110 [2018-10-24 18:42:15,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8446 states. [2018-10-24 18:42:15,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8446 to 8430. [2018-10-24 18:42:15,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8430 states. [2018-10-24 18:42:15,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8430 states to 8430 states and 12404 transitions. [2018-10-24 18:42:15,588 INFO L78 Accepts]: Start accepts. Automaton has 8430 states and 12404 transitions. Word has length 114 [2018-10-24 18:42:15,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:42:15,589 INFO L481 AbstractCegarLoop]: Abstraction has 8430 states and 12404 transitions. [2018-10-24 18:42:15,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 18:42:15,589 INFO L276 IsEmpty]: Start isEmpty. Operand 8430 states and 12404 transitions. [2018-10-24 18:42:15,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2018-10-24 18:42:15,595 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:42:15,596 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:42:15,596 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:42:15,596 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:42:15,598 INFO L82 PathProgramCache]: Analyzing trace with hash -1089244079, now seen corresponding path program 1 times [2018-10-24 18:42:15,598 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:42:15,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:42:15,600 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:42:15,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:42:15,600 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:42:15,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:42:16,259 WARN L179 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 15 [2018-10-24 18:42:16,563 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-10-24 18:42:16,628 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:42:16,628 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:42:16,628 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:42:16,629 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 187 with the following transitions: [2018-10-24 18:42:16,633 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [117], [119], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1056], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-24 18:42:16,650 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:42:16,650 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:42:22,398 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:42:22,705 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:42:22,705 INFO L272 AbstractInterpreter]: Visited 172 different actions 172 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-24 18:42:22,711 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:42:22,711 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:42:25,766 INFO L232 lantSequenceWeakener]: Weakened 171 states. On average, predicates are now at 77.55% of their original sizes. [2018-10-24 18:42:25,766 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 18:42:27,298 INFO L413 sIntCurrentIteration]: We have 185 unified AI predicates [2018-10-24 18:42:27,298 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 18:42:27,299 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 18:42:27,299 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [7] total 16 [2018-10-24 18:42:27,300 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:42:27,300 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-24 18:42:27,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-24 18:42:27,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-10-24 18:42:27,301 INFO L87 Difference]: Start difference. First operand 8430 states and 12404 transitions. Second operand 11 states. [2018-10-24 18:44:31,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:44:31,937 INFO L93 Difference]: Finished difference Result 16550 states and 24479 transitions. [2018-10-24 18:44:31,938 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-24 18:44:31,938 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 186 [2018-10-24 18:44:31,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:44:31,973 INFO L225 Difference]: With dead ends: 16550 [2018-10-24 18:44:31,973 INFO L226 Difference]: Without dead ends: 8434 [2018-10-24 18:44:31,994 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 190 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2018-10-24 18:44:32,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8434 states. [2018-10-24 18:44:32,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8434 to 8422. [2018-10-24 18:44:32,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8422 states. [2018-10-24 18:44:32,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8422 states to 8422 states and 12354 transitions. [2018-10-24 18:44:32,253 INFO L78 Accepts]: Start accepts. Automaton has 8422 states and 12354 transitions. Word has length 186 [2018-10-24 18:44:32,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:44:32,253 INFO L481 AbstractCegarLoop]: Abstraction has 8422 states and 12354 transitions. [2018-10-24 18:44:32,253 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-24 18:44:32,253 INFO L276 IsEmpty]: Start isEmpty. Operand 8422 states and 12354 transitions. [2018-10-24 18:44:32,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2018-10-24 18:44:32,259 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:44:32,259 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 18:44:32,259 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:44:32,260 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:44:32,260 INFO L82 PathProgramCache]: Analyzing trace with hash 616391350, now seen corresponding path program 1 times [2018-10-24 18:44:32,260 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:44:32,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:44:32,261 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:44:32,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:44:32,261 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:44:32,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:44:32,557 WARN L179 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 18:44:33,043 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 23 proven. 82 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-10-24 18:44:33,043 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:44:33,043 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:44:33,044 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 222 with the following transitions: [2018-10-24 18:44:33,044 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [117], [119], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [742], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-24 18:44:33,049 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:44:33,049 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:44:34,175 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:44:41,792 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-24 18:44:41,792 INFO L272 AbstractInterpreter]: Visited 116 different actions 334 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 18:44:41,801 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:44:41,801 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-24 18:44:41,801 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:44:41,801 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 18:44:41,815 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:44:41,815 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 18:44:41,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:44:41,903 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 18:44:42,006 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 116 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:44:42,007 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-24 18:44:42,203 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 116 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:44:42,225 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-24 18:44:42,225 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-10-24 18:44:42,225 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-24 18:44:42,226 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-24 18:44:42,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-24 18:44:42,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-10-24 18:44:42,226 INFO L87 Difference]: Start difference. First operand 8422 states and 12354 transitions. Second operand 9 states. Received shutdown request... [2018-10-24 18:44:53,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-10-24 18:44:53,573 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 18:44:53,580 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 18:44:53,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 06:44:53 BoogieIcfgContainer [2018-10-24 18:44:53,580 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 18:44:53,581 INFO L168 Benchmark]: Toolchain (without parser) took 232171.35 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 2.9 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-10-24 18:44:53,582 INFO L168 Benchmark]: CDTParser took 0.21 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 18:44:53,583 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1211.13 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: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. [2018-10-24 18:44:53,584 INFO L168 Benchmark]: Boogie Procedure Inliner took 393.63 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 760.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -884.2 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. [2018-10-24 18:44:53,585 INFO L168 Benchmark]: Boogie Preprocessor took 192.58 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 7.1 GB. [2018-10-24 18:44:53,585 INFO L168 Benchmark]: RCFGBuilder took 6665.76 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 294.2 MB). Peak memory consumption was 294.2 MB. Max. memory is 7.1 GB. [2018-10-24 18:44:53,586 INFO L168 Benchmark]: TraceAbstraction took 223702.61 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 2.9 GB in the end (delta: -998.8 MB). Peak memory consumption was 859.8 MB. Max. memory is 7.1 GB. [2018-10-24 18:44:53,591 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 1211.13 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: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 393.63 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 760.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -884.2 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 192.58 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6665.76 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 294.2 MB). Peak memory consumption was 294.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 223702.61 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 2.9 GB in the end (delta: -998.8 MB). Peak memory consumption was 859.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 40]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 40). Cancelled while BasicCegarLoop was constructing difference of abstraction (8422states) and FLOYD_HOARE automaton (currently 17 states, 9 states before enhancement),while ReachableStatesComputation was computing reachable states (17601 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 223.6s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 186.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1854 SDtfs, 10635 SDslu, 1555 SDs, 0 SdLazy, 17247 SolverSat, 3973 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 134.8s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 927 GetRequests, 854 SyntacticMatches, 7 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 8.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8430occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 22.2s AbstIntTime, 3 AbstIntIterations, 1 AbstIntStrong, 0.9954661182922054 AbsIntWeakeningRatio, 0.10810810810810811 AbsIntAvgWeakeningVarsNumRemoved, 34.88108108108108 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 566 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 8.5s InterpolantComputationTime, 1144 NumberOfCodeBlocks, 1144 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1468 ConstructedInterpolants, 14 QuantifiedInterpolants, 926458 SizeOfPredicates, 4 NumberOfNonLiveVariables, 660 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 11 InterpolantComputations, 5 PerfectInterpolantSequences, 316/431 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown