java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label29_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 22:10:25,796 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 22:10:25,802 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 22:10:25,822 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 22:10:25,823 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 22:10:25,824 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 22:10:25,825 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 22:10:25,827 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 22:10:25,832 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 22:10:25,833 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 22:10:25,834 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 22:10:25,834 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 22:10:25,835 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 22:10:25,836 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 22:10:25,837 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 22:10:25,842 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 22:10:25,843 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 22:10:25,846 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 22:10:25,851 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 22:10:25,856 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 22:10:25,857 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 22:10:25,860 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 22:10:25,863 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 22:10:25,863 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 22:10:25,864 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 22:10:25,865 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 22:10:25,866 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 22:10:25,866 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 22:10:25,870 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 22:10:25,871 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 22:10:25,871 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 22:10:25,872 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 22:10:25,874 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 22:10:25,874 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 22:10:25,875 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 22:10:25,875 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 22:10:25,876 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 22:10:25,907 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 22:10:25,908 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 22:10:25,908 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 22:10:25,911 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 22:10:25,911 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 22:10:25,911 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 22:10:25,911 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 22:10:25,911 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 22:10:25,912 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 22:10:25,912 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 22:10:25,912 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 22:10:25,912 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 22:10:25,913 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 22:10:25,913 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 22:10:25,914 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 22:10:25,914 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 22:10:25,914 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 22:10:25,914 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 22:10:25,914 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 22:10:25,915 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 22:10:25,916 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 22:10:25,916 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 22:10:25,916 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 22:10:25,917 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 22:10:25,917 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 22:10:25,917 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 22:10:25,917 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 22:10:25,917 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 22:10:25,917 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 22:10:25,918 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 22:10:25,918 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 22:10:25,918 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 22:10:25,918 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 22:10:25,918 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 22:10:25,970 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 22:10:25,984 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 22:10:25,988 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 22:10:25,989 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 22:10:25,990 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 22:10:25,991 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label29_true-unreach-call.c [2018-10-24 22:10:26,050 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/0960f3338/c82872d8602a4fdd8a90b233e66eea49/FLAGf371a87d6 [2018-10-24 22:10:26,794 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 22:10:26,795 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label29_true-unreach-call.c [2018-10-24 22:10:26,827 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/0960f3338/c82872d8602a4fdd8a90b233e66eea49/FLAGf371a87d6 [2018-10-24 22:10:26,844 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/0960f3338/c82872d8602a4fdd8a90b233e66eea49 [2018-10-24 22:10:26,856 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 22:10:26,858 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 22:10:26,859 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 22:10:26,860 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 22:10:26,864 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 22:10:26,866 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:10:26" (1/1) ... [2018-10-24 22:10:26,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b394b2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:10:26, skipping insertion in model container [2018-10-24 22:10:26,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:10:26" (1/1) ... [2018-10-24 22:10:26,881 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 22:10:27,014 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 22:10:28,002 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 22:10:28,008 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 22:10:28,461 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 22:10:28,484 INFO L193 MainTranslator]: Completed translation [2018-10-24 22:10:28,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:10:28 WrapperNode [2018-10-24 22:10:28,485 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 22:10:28,486 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 22:10:28,486 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 22:10:28,486 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 22:10:28,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:10:28" (1/1) ... [2018-10-24 22:10:28,576 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:10:28" (1/1) ... [2018-10-24 22:10:29,044 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 22:10:29,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 22:10:29,045 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 22:10:29,045 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 22:10:29,056 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:10:28" (1/1) ... [2018-10-24 22:10:29,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:10:28" (1/1) ... [2018-10-24 22:10:29,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:10:28" (1/1) ... [2018-10-24 22:10:29,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:10:28" (1/1) ... [2018-10-24 22:10:29,187 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:10:28" (1/1) ... [2018-10-24 22:10:29,223 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:10:28" (1/1) ... [2018-10-24 22:10:29,255 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:10:28" (1/1) ... [2018-10-24 22:10:29,280 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 22:10:29,281 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 22:10:29,281 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 22:10:29,281 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 22:10:29,282 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:10:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 22:10:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 22:10:29,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 22:10:29,345 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 22:10:29,345 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 22:10:29,345 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 22:10:29,345 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 22:10:29,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 22:10:29,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 22:10:29,346 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 22:10:29,346 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 22:10:44,455 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 22:10:44,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:10:44 BoogieIcfgContainer [2018-10-24 22:10:44,456 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 22:10:44,459 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 22:10:44,459 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 22:10:44,462 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 22:10:44,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:10:26" (1/3) ... [2018-10-24 22:10:44,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f160a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:10:44, skipping insertion in model container [2018-10-24 22:10:44,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:10:28" (2/3) ... [2018-10-24 22:10:44,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f160a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:10:44, skipping insertion in model container [2018-10-24 22:10:44,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:10:44" (3/3) ... [2018-10-24 22:10:44,466 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label29_true-unreach-call.c [2018-10-24 22:10:44,477 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 22:10:44,488 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 22:10:44,505 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 22:10:44,547 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 22:10:44,547 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 22:10:44,547 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 22:10:44,547 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 22:10:44,548 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 22:10:44,548 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 22:10:44,548 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 22:10:44,548 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 22:10:44,592 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-10-24 22:10:44,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-10-24 22:10:44,603 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:10:44,604 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 22:10:44,607 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:10:44,612 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:10:44,613 INFO L82 PathProgramCache]: Analyzing trace with hash -1965894100, now seen corresponding path program 1 times [2018-10-24 22:10:44,615 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:10:44,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:10:44,669 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:10:44,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:10:44,670 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:10:44,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:10:45,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 22:10:45,237 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:10:45,237 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 22:10:45,238 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:10:45,244 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 22:10:45,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 22:10:45,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 22:10:45,265 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-10-24 22:10:57,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:10:57,213 INFO L93 Difference]: Finished difference Result 2166 states and 4013 transitions. [2018-10-24 22:10:57,213 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 22:10:57,215 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 72 [2018-10-24 22:10:57,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:10:57,250 INFO L225 Difference]: With dead ends: 2166 [2018-10-24 22:10:57,251 INFO L226 Difference]: Without dead ends: 1556 [2018-10-24 22:10:57,267 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 22:10:57,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1556 states. [2018-10-24 22:10:57,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1556 to 1068. [2018-10-24 22:10:57,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1068 states. [2018-10-24 22:10:57,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1850 transitions. [2018-10-24 22:10:57,446 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1850 transitions. Word has length 72 [2018-10-24 22:10:57,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:10:57,447 INFO L481 AbstractCegarLoop]: Abstraction has 1068 states and 1850 transitions. [2018-10-24 22:10:57,447 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 22:10:57,447 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1850 transitions. [2018-10-24 22:10:57,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-10-24 22:10:57,457 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:10:57,458 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 22:10:57,458 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:10:57,458 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:10:57,458 INFO L82 PathProgramCache]: Analyzing trace with hash -1274618542, now seen corresponding path program 1 times [2018-10-24 22:10:57,459 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:10:57,460 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:10:57,460 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:10:57,460 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:10:57,461 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:10:57,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:10:57,781 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 22:10:57,781 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:10:57,781 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 22:10:57,782 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:10:57,784 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 22:10:57,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 22:10:57,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 22:10:57,785 INFO L87 Difference]: Start difference. First operand 1068 states and 1850 transitions. Second operand 6 states. [2018-10-24 22:11:06,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:11:06,317 INFO L93 Difference]: Finished difference Result 3059 states and 5419 transitions. [2018-10-24 22:11:06,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 22:11:06,321 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 148 [2018-10-24 22:11:06,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:11:06,336 INFO L225 Difference]: With dead ends: 3059 [2018-10-24 22:11:06,336 INFO L226 Difference]: Without dead ends: 1997 [2018-10-24 22:11:06,341 INFO L605 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 [2018-10-24 22:11:06,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1997 states. [2018-10-24 22:11:06,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1997 to 1975. [2018-10-24 22:11:06,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1975 states. [2018-10-24 22:11:06,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1975 states to 1975 states and 3181 transitions. [2018-10-24 22:11:06,420 INFO L78 Accepts]: Start accepts. Automaton has 1975 states and 3181 transitions. Word has length 148 [2018-10-24 22:11:06,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:11:06,421 INFO L481 AbstractCegarLoop]: Abstraction has 1975 states and 3181 transitions. [2018-10-24 22:11:06,421 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 22:11:06,422 INFO L276 IsEmpty]: Start isEmpty. Operand 1975 states and 3181 transitions. [2018-10-24 22:11:06,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-10-24 22:11:06,432 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:11:06,432 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 22:11:06,432 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:11:06,433 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:11:06,434 INFO L82 PathProgramCache]: Analyzing trace with hash -73480886, now seen corresponding path program 1 times [2018-10-24 22:11:06,434 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:11:06,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:11:06,435 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:11:06,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:11:06,435 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:11:06,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:11:06,712 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 22:11:06,712 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:11:06,713 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 22:11:06,713 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:11:06,713 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 22:11:06,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 22:11:06,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 22:11:06,714 INFO L87 Difference]: Start difference. First operand 1975 states and 3181 transitions. Second operand 6 states. [2018-10-24 22:11:13,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:11:13,598 INFO L93 Difference]: Finished difference Result 4880 states and 7834 transitions. [2018-10-24 22:11:13,599 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 22:11:13,599 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 152 [2018-10-24 22:11:13,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:11:13,619 INFO L225 Difference]: With dead ends: 4880 [2018-10-24 22:11:13,619 INFO L226 Difference]: Without dead ends: 2911 [2018-10-24 22:11:13,630 INFO L605 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 [2018-10-24 22:11:13,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2911 states. [2018-10-24 22:11:13,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2911 to 2880. [2018-10-24 22:11:13,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2880 states. [2018-10-24 22:11:13,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2880 states to 2880 states and 3936 transitions. [2018-10-24 22:11:13,720 INFO L78 Accepts]: Start accepts. Automaton has 2880 states and 3936 transitions. Word has length 152 [2018-10-24 22:11:13,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:11:13,721 INFO L481 AbstractCegarLoop]: Abstraction has 2880 states and 3936 transitions. [2018-10-24 22:11:13,721 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 22:11:13,721 INFO L276 IsEmpty]: Start isEmpty. Operand 2880 states and 3936 transitions. [2018-10-24 22:11:13,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2018-10-24 22:11:13,724 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:11:13,724 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 22:11:13,725 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:11:13,725 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:11:13,725 INFO L82 PathProgramCache]: Analyzing trace with hash 363729319, now seen corresponding path program 1 times [2018-10-24 22:11:13,725 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:11:13,726 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:11:13,726 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:11:13,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:11:13,727 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:11:13,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:11:13,982 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 22:11:13,982 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:11:13,983 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 22:11:13,983 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:11:13,984 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 22:11:13,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 22:11:13,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 22:11:13,985 INFO L87 Difference]: Start difference. First operand 2880 states and 3936 transitions. Second operand 4 states. [2018-10-24 22:11:21,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:11:21,291 INFO L93 Difference]: Finished difference Result 5754 states and 7882 transitions. [2018-10-24 22:11:21,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 22:11:21,292 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 182 [2018-10-24 22:11:21,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:11:21,308 INFO L225 Difference]: With dead ends: 5754 [2018-10-24 22:11:21,309 INFO L226 Difference]: Without dead ends: 2880 [2018-10-24 22:11:21,321 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 22:11:21,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2880 states. [2018-10-24 22:11:21,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2880 to 2880. [2018-10-24 22:11:21,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2880 states. [2018-10-24 22:11:21,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2880 states to 2880 states and 3720 transitions. [2018-10-24 22:11:21,391 INFO L78 Accepts]: Start accepts. Automaton has 2880 states and 3720 transitions. Word has length 182 [2018-10-24 22:11:21,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:11:21,392 INFO L481 AbstractCegarLoop]: Abstraction has 2880 states and 3720 transitions. [2018-10-24 22:11:21,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 22:11:21,392 INFO L276 IsEmpty]: Start isEmpty. Operand 2880 states and 3720 transitions. [2018-10-24 22:11:21,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2018-10-24 22:11:21,396 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:11:21,396 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-24 22:11:21,397 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:11:21,397 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:11:21,397 INFO L82 PathProgramCache]: Analyzing trace with hash -1344568352, now seen corresponding path program 1 times [2018-10-24 22:11:21,397 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:11:21,398 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:11:21,398 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:11:21,398 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:11:21,399 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:11:21,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:11:21,652 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 133 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-10-24 22:11:21,652 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:11:21,653 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 22:11:21,653 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:11:21,653 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 22:11:21,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 22:11:21,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 22:11:21,654 INFO L87 Difference]: Start difference. First operand 2880 states and 3720 transitions. Second operand 4 states. [2018-10-24 22:11:30,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:11:30,647 INFO L93 Difference]: Finished difference Result 11049 states and 14698 transitions. [2018-10-24 22:11:30,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 22:11:30,653 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 236 [2018-10-24 22:11:30,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:11:30,692 INFO L225 Difference]: With dead ends: 11049 [2018-10-24 22:11:30,693 INFO L226 Difference]: Without dead ends: 8175 [2018-10-24 22:11:30,707 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 22:11:30,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8175 states. [2018-10-24 22:11:30,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8175 to 8171. [2018-10-24 22:11:30,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8171 states. [2018-10-24 22:11:30,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8171 states to 8171 states and 9880 transitions. [2018-10-24 22:11:30,889 INFO L78 Accepts]: Start accepts. Automaton has 8171 states and 9880 transitions. Word has length 236 [2018-10-24 22:11:30,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:11:30,889 INFO L481 AbstractCegarLoop]: Abstraction has 8171 states and 9880 transitions. [2018-10-24 22:11:30,890 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 22:11:30,890 INFO L276 IsEmpty]: Start isEmpty. Operand 8171 states and 9880 transitions. [2018-10-24 22:11:30,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2018-10-24 22:11:30,897 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:11:30,898 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-24 22:11:30,898 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:11:30,898 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:11:30,899 INFO L82 PathProgramCache]: Analyzing trace with hash -522914045, now seen corresponding path program 1 times [2018-10-24 22:11:30,899 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:11:30,900 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:11:30,900 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:11:30,900 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:11:30,900 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:11:30,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:11:31,456 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 130 proven. 72 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 22:11:31,457 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 22:11:31,457 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 22:11:31,458 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 260 with the following transitions: [2018-10-24 22:11:31,460 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1046], [1054], [1062], [1070], [1078], [1086], [1094], [1102], [1110], [1118], [1126], [1134], [1142], [1150], [1158], [1166], [1174], [1182], [1186], [1188], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1231], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1283], [1287], [1291], [1295], [1299], [1303], [1307], [1318], [1322], [1326], [1330], [1334], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-24 22:11:31,535 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 22:11:31,535 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 22:11:34,334 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 22:11:34,660 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 22:11:34,662 INFO L272 AbstractInterpreter]: Visited 115 different actions 115 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-24 22:11:34,673 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:11:34,673 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 22:11:37,197 INFO L232 lantSequenceWeakener]: Weakened 251 states. On average, predicates are now at 75.93% of their original sizes. [2018-10-24 22:11:37,198 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 22:11:37,837 INFO L413 sIntCurrentIteration]: We have 258 unified AI predicates [2018-10-24 22:11:37,837 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 22:11:37,838 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 22:11:37,838 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2018-10-24 22:11:37,838 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:11:37,839 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-24 22:11:37,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-24 22:11:37,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-10-24 22:11:37,840 INFO L87 Difference]: Start difference. First operand 8171 states and 9880 transitions. Second operand 8 states. [2018-10-24 22:13:11,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:13:11,048 INFO L93 Difference]: Finished difference Result 16772 states and 20222 transitions. [2018-10-24 22:13:11,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 22:13:11,048 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 259 [2018-10-24 22:13:11,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:13:11,080 INFO L225 Difference]: With dead ends: 16772 [2018-10-24 22:13:11,080 INFO L226 Difference]: Without dead ends: 8607 [2018-10-24 22:13:11,099 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 260 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-24 22:13:11,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8607 states. [2018-10-24 22:13:11,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8607 to 8605. [2018-10-24 22:13:11,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8605 states. [2018-10-24 22:13:11,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8605 states to 8605 states and 10325 transitions. [2018-10-24 22:13:11,268 INFO L78 Accepts]: Start accepts. Automaton has 8605 states and 10325 transitions. Word has length 259 [2018-10-24 22:13:11,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:13:11,269 INFO L481 AbstractCegarLoop]: Abstraction has 8605 states and 10325 transitions. [2018-10-24 22:13:11,269 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-24 22:13:11,269 INFO L276 IsEmpty]: Start isEmpty. Operand 8605 states and 10325 transitions. [2018-10-24 22:13:11,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2018-10-24 22:13:11,278 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:13:11,279 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 22:13:11,279 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:13:11,279 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:13:11,280 INFO L82 PathProgramCache]: Analyzing trace with hash 1507360391, now seen corresponding path program 1 times [2018-10-24 22:13:11,280 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:13:11,281 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:13:11,281 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:13:11,281 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:13:11,281 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:13:11,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:13:11,650 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-10-24 22:13:11,701 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 133 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-10-24 22:13:11,701 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:13:11,701 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 22:13:11,702 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:13:11,702 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 22:13:11,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 22:13:11,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 22:13:11,703 INFO L87 Difference]: Start difference. First operand 8605 states and 10325 transitions. Second operand 4 states. [2018-10-24 22:13:19,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:13:19,538 INFO L93 Difference]: Finished difference Result 22089 states and 27084 transitions. [2018-10-24 22:13:19,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 22:13:19,538 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 302 [2018-10-24 22:13:19,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:13:19,594 INFO L225 Difference]: With dead ends: 22089 [2018-10-24 22:13:19,594 INFO L226 Difference]: Without dead ends: 13924 [2018-10-24 22:13:19,627 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 22:13:19,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13924 states. [2018-10-24 22:13:20,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13924 to 13912. [2018-10-24 22:13:20,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13912 states. [2018-10-24 22:13:20,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13912 states to 13912 states and 16479 transitions. [2018-10-24 22:13:20,067 INFO L78 Accepts]: Start accepts. Automaton has 13912 states and 16479 transitions. Word has length 302 [2018-10-24 22:13:20,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:13:20,068 INFO L481 AbstractCegarLoop]: Abstraction has 13912 states and 16479 transitions. [2018-10-24 22:13:20,068 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 22:13:20,069 INFO L276 IsEmpty]: Start isEmpty. Operand 13912 states and 16479 transitions. [2018-10-24 22:13:20,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2018-10-24 22:13:20,083 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:13:20,083 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2018-10-24 22:13:20,084 INFO L424 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:13:20,084 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:13:20,084 INFO L82 PathProgramCache]: Analyzing trace with hash -959165458, now seen corresponding path program 1 times [2018-10-24 22:13:20,084 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:13:20,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:13:20,085 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:13:20,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:13:20,085 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:13:20,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:13:20,694 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 205 proven. 142 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-10-24 22:13:20,695 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 22:13:20,695 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 22:13:20,695 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 312 with the following transitions: [2018-10-24 22:13:20,695 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1046], [1054], [1062], [1070], [1078], [1086], [1094], [1102], [1110], [1118], [1126], [1134], [1142], [1150], [1158], [1166], [1174], [1182], [1186], [1188], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [1224], [1227], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-24 22:13:20,700 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 22:13:20,701 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 22:13:21,341 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-24 22:14:24,795 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-10-24 22:14:24,796 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-10-24 22:14:24,797 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-24 22:14:24,797 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 22:14:24,797 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 22:14:24,808 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:14:24,808 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 22:14:24,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:14:24,948 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 22:14:24,963 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-24 22:14:25,165 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 22:14:25,166 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 22:14:25,171 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 22:14:25,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:14:25 BoogieIcfgContainer [2018-10-24 22:14:25,172 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 22:14:25,173 INFO L168 Benchmark]: Toolchain (without parser) took 238315.50 ms. Allocated memory was 1.5 GB in the beginning and 4.3 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.0 GB in the end (delta: -1.6 GB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-10-24 22:14:25,174 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 22:14:25,175 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1625.92 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: 140.1 MB). Peak memory consumption was 140.1 MB. Max. memory is 7.1 GB. [2018-10-24 22:14:25,176 INFO L168 Benchmark]: Boogie Procedure Inliner took 558.30 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 812.6 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -964.1 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. [2018-10-24 22:14:25,177 INFO L168 Benchmark]: Boogie Preprocessor took 236.02 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 42.6 MB). Peak memory consumption was 42.6 MB. Max. memory is 7.1 GB. [2018-10-24 22:14:25,178 INFO L168 Benchmark]: RCFGBuilder took 15176.72 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 466.3 MB). Peak memory consumption was 466.3 MB. Max. memory is 7.1 GB. [2018-10-24 22:14:25,178 INFO L168 Benchmark]: TraceAbstraction took 220713.24 ms. Allocated memory was 2.3 GB in the beginning and 4.3 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 3.0 GB in the end (delta: -1.2 GB). Peak memory consumption was 667.4 MB. Max. memory is 7.1 GB. [2018-10-24 22:14:25,185 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1625.92 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: 140.1 MB). Peak memory consumption was 140.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 558.30 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 812.6 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -964.1 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 236.02 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 42.6 MB). Peak memory consumption was 42.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 15176.72 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 466.3 MB). Peak memory consumption was 466.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 220713.24 ms. Allocated memory was 2.3 GB in the beginning and 4.3 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 3.0 GB in the end (delta: -1.2 GB). Peak memory consumption was 667.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 203]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 203). Cancelled while BasicCegarLoop was analyzing trace of length 312 with TraceHistMax 4,while TraceCheckSpWp was constructing forward predicates,while XnfDer was eliminating 1 quantified variables from 2 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 220.6s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 145.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3735 SDtfs, 8550 SDslu, 1667 SDs, 0 SdLazy, 16325 SolverSat, 3443 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 112.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 301 GetRequests, 269 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13912occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 67.3s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 0.9962432915921289 AbsIntWeakeningRatio, 0.10465116279069768 AbsIntAvgWeakeningVarsNumRemoved, 1055.5077519379845 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 559 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 1351 NumberOfCodeBlocks, 1351 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1344 ConstructedInterpolants, 0 QuantifiedInterpolants, 992595 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 754/826 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown