java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-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/Problem16_label56_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 03:49:34,432 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 03:49:34,436 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 03:49:34,453 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 03:49:34,453 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 03:49:34,454 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 03:49:34,455 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 03:49:34,457 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 03:49:34,459 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 03:49:34,460 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 03:49:34,461 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 03:49:34,461 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 03:49:34,462 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 03:49:34,463 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 03:49:34,464 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 03:49:34,465 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 03:49:34,466 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 03:49:34,468 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 03:49:34,470 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 03:49:34,471 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 03:49:34,472 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 03:49:34,474 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 03:49:34,476 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 03:49:34,476 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 03:49:34,477 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 03:49:34,478 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 03:49:34,479 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 03:49:34,480 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 03:49:34,481 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 03:49:34,482 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 03:49:34,482 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 03:49:34,483 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 03:49:34,483 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 03:49:34,484 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 03:49:34,485 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 03:49:34,487 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 03:49:34,488 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-07 03:49:34,517 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 03:49:34,517 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 03:49:34,521 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 03:49:34,521 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 03:49:34,521 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 03:49:34,521 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 03:49:34,522 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 03:49:34,522 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 03:49:34,522 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 03:49:34,522 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 03:49:34,522 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 03:49:34,523 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 03:49:34,523 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 03:49:34,524 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 03:49:34,524 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 03:49:34,524 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 03:49:34,524 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 03:49:34,524 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 03:49:34,524 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 03:49:34,525 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 03:49:34,525 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 03:49:34,525 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 03:49:34,525 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 03:49:34,525 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 03:49:34,526 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 03:49:34,526 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 03:49:34,526 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 03:49:34,526 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 03:49:34,527 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 03:49:34,527 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 03:49:34,527 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 03:49:34,527 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 03:49:34,527 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 03:49:34,527 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 03:49:34,572 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 03:49:34,586 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 03:49:34,590 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 03:49:34,592 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 03:49:34,592 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 03:49:34,593 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label56_true-unreach-call.c [2018-11-07 03:49:34,659 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/420be5fb5/506554a8717248b2af8824202040d93e/FLAG7443fbbf2 [2018-11-07 03:49:35,391 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 03:49:35,392 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label56_true-unreach-call.c [2018-11-07 03:49:35,413 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/420be5fb5/506554a8717248b2af8824202040d93e/FLAG7443fbbf2 [2018-11-07 03:49:35,429 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/420be5fb5/506554a8717248b2af8824202040d93e [2018-11-07 03:49:35,440 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 03:49:35,442 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 03:49:35,443 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 03:49:35,443 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 03:49:35,447 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 03:49:35,448 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:49:35" (1/1) ... [2018-11-07 03:49:35,451 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@710be24e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:49:35, skipping insertion in model container [2018-11-07 03:49:35,451 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:49:35" (1/1) ... [2018-11-07 03:49:35,462 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 03:49:35,553 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 03:49:36,322 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 03:49:36,326 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 03:49:36,582 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 03:49:36,604 INFO L193 MainTranslator]: Completed translation [2018-11-07 03:49:36,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:49:36 WrapperNode [2018-11-07 03:49:36,604 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 03:49:36,605 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 03:49:36,606 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 03:49:36,606 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 03:49:36,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:49:36" (1/1) ... [2018-11-07 03:49:36,808 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:49:36" (1/1) ... [2018-11-07 03:49:36,830 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 03:49:36,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 03:49:36,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 03:49:36,831 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 03:49:36,842 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:49:36" (1/1) ... [2018-11-07 03:49:36,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:49:36" (1/1) ... [2018-11-07 03:49:36,851 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:49:36" (1/1) ... [2018-11-07 03:49:36,851 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:49:36" (1/1) ... [2018-11-07 03:49:36,918 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:49:36" (1/1) ... [2018-11-07 03:49:36,943 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:49:36" (1/1) ... [2018-11-07 03:49:36,967 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:49:36" (1/1) ... [2018-11-07 03:49:36,986 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 03:49:36,987 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 03:49:36,987 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 03:49:36,987 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 03:49:36,988 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:49:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-11-07 03:49:37,067 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 03:49:37,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 03:49:37,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 03:49:37,068 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 03:49:37,068 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 03:49:37,068 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 03:49:37,068 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 03:49:37,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 03:49:37,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 03:49:37,069 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 03:49:37,069 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 03:49:43,838 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 03:49:43,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:49:43 BoogieIcfgContainer [2018-11-07 03:49:43,839 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 03:49:43,841 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 03:49:43,841 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 03:49:43,844 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 03:49:43,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:49:35" (1/3) ... [2018-11-07 03:49:43,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d0c1f63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:49:43, skipping insertion in model container [2018-11-07 03:49:43,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:49:36" (2/3) ... [2018-11-07 03:49:43,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d0c1f63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:49:43, skipping insertion in model container [2018-11-07 03:49:43,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:49:43" (3/3) ... [2018-11-07 03:49:43,848 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label56_true-unreach-call.c [2018-11-07 03:49:43,857 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 03:49:43,865 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 03:49:43,880 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 03:49:43,923 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 03:49:43,923 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 03:49:43,924 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 03:49:43,924 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 03:49:43,924 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 03:49:43,924 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 03:49:43,924 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 03:49:43,925 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 03:49:43,959 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-11-07 03:49:43,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-07 03:49:43,968 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:49:43,970 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] [2018-11-07 03:49:43,972 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:49:43,979 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:49:43,979 INFO L82 PathProgramCache]: Analyzing trace with hash 1440344268, now seen corresponding path program 1 times [2018-11-07 03:49:43,982 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:49:44,031 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:49:44,032 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:49:44,032 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:49:44,032 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:49:44,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:49:44,449 WARN L179 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 03:49:44,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:49:44,578 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:49:44,579 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 03:49:44,579 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:49:44,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 03:49:44,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 03:49:44,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 03:49:44,606 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 3 states. [2018-11-07 03:49:48,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:49:48,050 INFO L93 Difference]: Finished difference Result 1156 states and 2144 transitions. [2018-11-07 03:49:48,052 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 03:49:48,053 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 40 [2018-11-07 03:49:48,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:49:48,078 INFO L225 Difference]: With dead ends: 1156 [2018-11-07 03:49:48,079 INFO L226 Difference]: Without dead ends: 744 [2018-11-07 03:49:48,089 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 03:49:48,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-11-07 03:49:48,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2018-11-07 03:49:48,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-11-07 03:49:48,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1353 transitions. [2018-11-07 03:49:48,237 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1353 transitions. Word has length 40 [2018-11-07 03:49:48,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:49:48,238 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1353 transitions. [2018-11-07 03:49:48,238 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 03:49:48,238 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1353 transitions. [2018-11-07 03:49:48,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-11-07 03:49:48,248 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:49:48,249 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 03:49:48,249 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:49:48,249 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:49:48,250 INFO L82 PathProgramCache]: Analyzing trace with hash 884268999, now seen corresponding path program 1 times [2018-11-07 03:49:48,251 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:49:48,252 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:49:48,252 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:49:48,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:49:48,253 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:49:48,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:49:48,648 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:49:48,649 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:49:48,649 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 03:49:48,649 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:49:48,651 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 03:49:48,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 03:49:48,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 03:49:48,653 INFO L87 Difference]: Start difference. First operand 744 states and 1353 transitions. Second operand 6 states. [2018-11-07 03:49:56,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:49:56,146 INFO L93 Difference]: Finished difference Result 2184 states and 3997 transitions. [2018-11-07 03:49:56,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 03:49:56,150 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 133 [2018-11-07 03:49:56,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:49:56,168 INFO L225 Difference]: With dead ends: 2184 [2018-11-07 03:49:56,168 INFO L226 Difference]: Without dead ends: 1446 [2018-11-07 03:49:56,175 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 03:49:56,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1446 states. [2018-11-07 03:49:56,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1446 to 1425. [2018-11-07 03:49:56,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1425 states. [2018-11-07 03:49:56,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 2267 transitions. [2018-11-07 03:49:56,244 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 2267 transitions. Word has length 133 [2018-11-07 03:49:56,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:49:56,245 INFO L480 AbstractCegarLoop]: Abstraction has 1425 states and 2267 transitions. [2018-11-07 03:49:56,245 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 03:49:56,245 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 2267 transitions. [2018-11-07 03:49:56,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2018-11-07 03:49:56,263 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:49:56,263 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 03:49:56,263 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:49:56,263 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:49:56,264 INFO L82 PathProgramCache]: Analyzing trace with hash -1634663824, now seen corresponding path program 1 times [2018-11-07 03:49:56,264 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:49:56,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:49:56,265 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:49:56,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:49:56,266 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:49:56,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:49:56,592 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 03:49:56,670 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 66 proven. 88 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 03:49:56,670 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 03:49:56,670 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 03:49:56,672 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 245 with the following transitions: [2018-11-07 03:49:56,674 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [399], [401], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [764], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 03:49:56,757 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 03:49:56,758 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 03:49:59,170 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 03:49:59,172 INFO L272 AbstractInterpreter]: Visited 116 different actions 116 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 03:49:59,185 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:49:59,185 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 03:50:01,550 INFO L227 lantSequenceWeakener]: Weakened 236 states. On average, predicates are now at 77.78% of their original sizes. [2018-11-07 03:50:01,551 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 03:50:01,865 INFO L415 sIntCurrentIteration]: We unified 243 AI predicates to 243 [2018-11-07 03:50:01,866 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 03:50:01,866 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 03:50:01,867 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-11-07 03:50:01,867 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:50:01,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-07 03:50:01,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-07 03:50:01,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-07 03:50:01,868 INFO L87 Difference]: Start difference. First operand 1425 states and 2267 transitions. Second operand 7 states. [2018-11-07 03:50:04,347 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 03:50:29,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:50:29,441 INFO L93 Difference]: Finished difference Result 3184 states and 5088 transitions. [2018-11-07 03:50:29,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 03:50:29,442 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 244 [2018-11-07 03:50:29,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:50:29,451 INFO L225 Difference]: With dead ends: 3184 [2018-11-07 03:50:29,451 INFO L226 Difference]: Without dead ends: 1765 [2018-11-07 03:50:29,456 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 244 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-11-07 03:50:29,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1765 states. [2018-11-07 03:50:29,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1765 to 1763. [2018-11-07 03:50:29,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1763 states. [2018-11-07 03:50:29,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1763 states to 1763 states and 2612 transitions. [2018-11-07 03:50:29,504 INFO L78 Accepts]: Start accepts. Automaton has 1763 states and 2612 transitions. Word has length 244 [2018-11-07 03:50:29,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:50:29,504 INFO L480 AbstractCegarLoop]: Abstraction has 1763 states and 2612 transitions. [2018-11-07 03:50:29,505 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-07 03:50:29,505 INFO L276 IsEmpty]: Start isEmpty. Operand 1763 states and 2612 transitions. [2018-11-07 03:50:29,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2018-11-07 03:50:29,511 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:50:29,511 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 03:50:29,512 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:50:29,512 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:50:29,512 INFO L82 PathProgramCache]: Analyzing trace with hash 1999835890, now seen corresponding path program 1 times [2018-11-07 03:50:29,512 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:50:29,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:50:29,513 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:50:29,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:50:29,514 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:50:29,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:50:29,889 WARN L179 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 03:50:30,463 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 105 proven. 197 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-11-07 03:50:30,463 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 03:50:30,464 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 03:50:30,464 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 337 with the following transitions: [2018-11-07 03:50:30,464 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [399], [401], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [764], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 03:50:30,472 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 03:50:30,472 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 03:50:31,679 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 03:50:41,303 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 03:50:41,303 INFO L272 AbstractInterpreter]: Visited 120 different actions 461 times. Merged at 5 different actions 14 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 03:50:41,310 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:50:41,310 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 03:50:44,833 INFO L227 lantSequenceWeakener]: Weakened 88 states. On average, predicates are now at 77.89% of their original sizes. [2018-11-07 03:50:44,833 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 03:51:32,424 INFO L415 sIntCurrentIteration]: We unified 335 AI predicates to 335 [2018-11-07 03:51:32,425 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 03:51:32,425 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 03:51:32,425 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [6] total 19 [2018-11-07 03:51:32,425 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:51:32,427 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-07 03:51:32,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-07 03:51:32,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2018-11-07 03:51:32,428 INFO L87 Difference]: Start difference. First operand 1763 states and 2612 transitions. Second operand 15 states. Received shutdown request... [2018-11-07 03:53:36,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-07 03:53:36,952 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 03:53:36,958 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 03:53:36,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 03:53:36 BoogieIcfgContainer [2018-11-07 03:53:36,958 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 03:53:36,959 INFO L168 Benchmark]: Toolchain (without parser) took 241518.42 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 1.7 GB in the end (delta: -344.1 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2018-11-07 03:53:36,960 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 03:53:36,961 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1162.42 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: 87.2 MB). Peak memory consumption was 87.2 MB. Max. memory is 7.1 GB. [2018-11-07 03:53:36,962 INFO L168 Benchmark]: Boogie Procedure Inliner took 224.58 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 715.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -841.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2018-11-07 03:53:36,963 INFO L168 Benchmark]: Boogie Preprocessor took 155.98 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 03:53:36,964 INFO L168 Benchmark]: RCFGBuilder took 6852.98 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 256.3 MB). Peak memory consumption was 256.3 MB. Max. memory is 7.1 GB. [2018-11-07 03:53:36,964 INFO L168 Benchmark]: TraceAbstraction took 233117.68 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 1.7 GB in the end (delta: 153.4 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-11-07 03:53:36,970 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1162.42 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: 87.2 MB). Peak memory consumption was 87.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 224.58 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 715.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -841.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 155.98 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 6852.98 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 256.3 MB). Peak memory consumption was 256.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 233117.68 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 1.7 GB in the end (delta: 153.4 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 106]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 106). Cancelled while BasicCegarLoop was constructing difference of abstraction (1763states) and FLOYD_HOARE automaton (currently 20 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (879 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 233.0s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 163.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 698 SDtfs, 4614 SDslu, 325 SDs, 0 SdLazy, 5674 SolverSat, 1892 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 69.3s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 601 GetRequests, 485 SyntacticMatches, 82 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 355 ImplicationChecksByTransitivity, 49.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1763occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 13.3s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9957719021112279 AbsIntWeakeningRatio, 0.10034602076124567 AbsIntAvgWeakeningVarsNumRemoved, 558.7439446366782 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 23 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 753 NumberOfCodeBlocks, 753 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 749 ConstructedInterpolants, 0 QuantifiedInterpolants, 587501 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 283/568 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown