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-INT-LIM.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label00_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 20:58:17,785 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 20:58:17,787 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 20:58:17,804 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 20:58:17,804 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 20:58:17,805 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 20:58:17,807 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 20:58:17,808 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 20:58:17,810 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 20:58:17,811 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 20:58:17,812 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 20:58:17,812 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 20:58:17,813 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 20:58:17,814 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 20:58:17,815 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 20:58:17,816 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 20:58:17,817 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 20:58:17,818 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 20:58:17,820 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 20:58:17,822 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 20:58:17,823 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 20:58:17,824 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 20:58:17,827 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 20:58:17,827 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 20:58:17,827 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 20:58:17,828 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 20:58:17,829 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 20:58:17,830 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 20:58:17,830 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 20:58:17,832 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 20:58:17,832 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 20:58:17,833 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 20:58:17,833 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 20:58:17,833 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 20:58:17,834 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 20:58:17,835 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 20:58:17,835 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-07 20:58:17,865 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 20:58:17,865 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 20:58:17,867 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 20:58:17,867 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 20:58:17,867 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 20:58:17,867 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 20:58:17,868 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-07 20:58:17,868 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 20:58:17,868 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 20:58:17,868 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 20:58:17,868 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 20:58:17,869 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 20:58:17,869 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 20:58:17,869 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 20:58:17,870 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 20:58:17,870 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 20:58:17,871 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 20:58:17,871 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 20:58:17,871 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 20:58:17,871 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 20:58:17,871 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 20:58:17,872 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 20:58:17,872 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 20:58:17,872 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 20:58:17,872 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 20:58:17,872 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 20:58:17,873 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 20:58:17,873 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 20:58:17,873 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 20:58:17,873 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 20:58:17,873 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 20:58:17,873 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 20:58:17,875 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 20:58:17,875 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 20:58:17,875 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 20:58:17,941 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 20:58:17,958 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 20:58:17,963 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 20:58:17,964 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 20:58:17,965 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 20:58:17,966 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label00_true-unreach-call.c [2018-11-07 20:58:18,028 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39da2d2d0/da4004120d444f93b400fc14a7539ec6/FLAG83358e22d [2018-11-07 20:58:18,739 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 20:58:18,740 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label00_true-unreach-call.c [2018-11-07 20:58:18,762 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39da2d2d0/da4004120d444f93b400fc14a7539ec6/FLAG83358e22d [2018-11-07 20:58:18,777 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39da2d2d0/da4004120d444f93b400fc14a7539ec6 [2018-11-07 20:58:18,792 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 20:58:18,796 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 20:58:18,797 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 20:58:18,797 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 20:58:18,802 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 20:58:18,803 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:58:18" (1/1) ... [2018-11-07 20:58:18,807 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16342e93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:18, skipping insertion in model container [2018-11-07 20:58:18,807 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:58:18" (1/1) ... [2018-11-07 20:58:18,818 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 20:58:18,952 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 20:58:20,060 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 20:58:20,064 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 20:58:20,467 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 20:58:20,492 INFO L193 MainTranslator]: Completed translation [2018-11-07 20:58:20,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:20 WrapperNode [2018-11-07 20:58:20,493 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 20:58:20,494 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 20:58:20,494 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 20:58:20,494 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 20:58:20,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:20" (1/1) ... [2018-11-07 20:58:20,760 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:20" (1/1) ... [2018-11-07 20:58:20,769 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 20:58:20,770 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 20:58:20,770 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 20:58:20,770 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 20:58:20,781 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:20" (1/1) ... [2018-11-07 20:58:20,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:20" (1/1) ... [2018-11-07 20:58:20,796 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:20" (1/1) ... [2018-11-07 20:58:20,797 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:20" (1/1) ... [2018-11-07 20:58:20,886 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:20" (1/1) ... [2018-11-07 20:58:20,916 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:20" (1/1) ... [2018-11-07 20:58:20,967 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:20" (1/1) ... [2018-11-07 20:58:21,002 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 20:58:21,003 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 20:58:21,003 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 20:58:21,003 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 20:58:21,004 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:20" (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 20:58:21,079 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 20:58:21,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 20:58:21,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 20:58:21,080 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 20:58:21,080 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 20:58:21,080 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 20:58:21,080 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 20:58:21,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 20:58:21,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 20:58:21,081 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 20:58:21,081 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 20:58:31,220 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 20:58:31,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:58:31 BoogieIcfgContainer [2018-11-07 20:58:31,221 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 20:58:31,222 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 20:58:31,222 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 20:58:31,225 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 20:58:31,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:58:18" (1/3) ... [2018-11-07 20:58:31,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8de6d03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:58:31, skipping insertion in model container [2018-11-07 20:58:31,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:20" (2/3) ... [2018-11-07 20:58:31,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8de6d03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:58:31, skipping insertion in model container [2018-11-07 20:58:31,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:58:31" (3/3) ... [2018-11-07 20:58:31,229 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label00_true-unreach-call.c [2018-11-07 20:58:31,237 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 20:58:31,246 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 20:58:31,264 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 20:58:31,308 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 20:58:31,308 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 20:58:31,308 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 20:58:31,309 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 20:58:31,309 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 20:58:31,309 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 20:58:31,309 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 20:58:31,309 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 20:58:31,352 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-11-07 20:58:31,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-11-07 20:58:31,362 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:58:31,364 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] [2018-11-07 20:58:31,366 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:58:31,371 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:58:31,371 INFO L82 PathProgramCache]: Analyzing trace with hash -1314477298, now seen corresponding path program 1 times [2018-11-07 20:58:31,374 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:58:31,420 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:58:31,421 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:58:31,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:58:31,421 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:58:31,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:58:32,030 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 20:58:32,037 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:58:32,037 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 20:58:32,037 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:58:32,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 20:58:32,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 20:58:32,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 20:58:32,083 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-11-07 20:58:40,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:58:40,741 INFO L93 Difference]: Finished difference Result 2139 states and 3961 transitions. [2018-11-07 20:58:40,741 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 20:58:40,743 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2018-11-07 20:58:40,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:58:40,774 INFO L225 Difference]: With dead ends: 2139 [2018-11-07 20:58:40,774 INFO L226 Difference]: Without dead ends: 1529 [2018-11-07 20:58:40,785 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 20:58:40,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529 states. [2018-11-07 20:58:40,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1529 to 1527. [2018-11-07 20:58:40,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1527 states. [2018-11-07 20:58:40,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1527 states to 1527 states and 2413 transitions. [2018-11-07 20:58:40,941 INFO L78 Accepts]: Start accepts. Automaton has 1527 states and 2413 transitions. Word has length 61 [2018-11-07 20:58:40,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:58:40,942 INFO L480 AbstractCegarLoop]: Abstraction has 1527 states and 2413 transitions. [2018-11-07 20:58:40,943 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 20:58:40,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1527 states and 2413 transitions. [2018-11-07 20:58:40,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-11-07 20:58:40,952 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:58:40,952 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, 1, 1, 1, 1, 1, 1, 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 20:58:40,953 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:58:40,953 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:58:40,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1910289401, now seen corresponding path program 1 times [2018-11-07 20:58:40,953 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:58:40,955 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:58:40,955 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:58:40,955 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:58:40,955 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:58:41,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:58:41,403 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:58:41,403 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:58:41,403 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:58:41,404 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 137 with the following transitions: [2018-11-07 20:58:41,406 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], [1098], [1100], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-11-07 20:58:41,454 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:58:41,455 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:58:41,964 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:58:42,611 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 20:58:42,613 INFO L272 AbstractInterpreter]: Visited 83 different actions 235 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-07 20:58:42,663 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:58:42,665 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 20:58:42,666 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:58:42,666 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-11-07 20:58:42,681 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:58:42,681 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 20:58:42,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:58:42,790 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 20:59:03,671 WARN L179 SmtUtils]: Spent 20.35 s on a formula simplification. DAG size of input: 135 DAG size of output: 83 [2018-11-07 20:59:03,910 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:59:03,910 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 20:59:06,202 WARN L179 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 133 DAG size of output: 16 [2018-11-07 20:59:06,241 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 28 [2018-11-07 20:59:07,354 WARN L179 SmtUtils]: Spent 780.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 26 [2018-11-07 20:59:07,711 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:59:07,744 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-07 20:59:07,744 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 13 [2018-11-07 20:59:07,745 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:59:07,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 20:59:07,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 20:59:07,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2018-11-07 20:59:07,747 INFO L87 Difference]: Start difference. First operand 1527 states and 2413 transitions. Second operand 6 states. [2018-11-07 20:59:31,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:59:31,465 INFO L93 Difference]: Finished difference Result 5752 states and 9360 transitions. [2018-11-07 20:59:31,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 20:59:31,470 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 136 [2018-11-07 20:59:31,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:59:31,498 INFO L225 Difference]: With dead ends: 5752 [2018-11-07 20:59:31,499 INFO L226 Difference]: Without dead ends: 4231 [2018-11-07 20:59:31,510 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 267 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 24.4s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2018-11-07 20:59:31,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4231 states. [2018-11-07 20:59:31,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4231 to 4198. [2018-11-07 20:59:31,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4198 states. [2018-11-07 20:59:31,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4198 states to 4198 states and 6423 transitions. [2018-11-07 20:59:31,645 INFO L78 Accepts]: Start accepts. Automaton has 4198 states and 6423 transitions. Word has length 136 [2018-11-07 20:59:31,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:59:31,646 INFO L480 AbstractCegarLoop]: Abstraction has 4198 states and 6423 transitions. [2018-11-07 20:59:31,647 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 20:59:31,647 INFO L276 IsEmpty]: Start isEmpty. Operand 4198 states and 6423 transitions. [2018-11-07 20:59:31,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2018-11-07 20:59:31,657 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:59:31,657 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:59:31,658 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:59:31,658 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:59:31,658 INFO L82 PathProgramCache]: Analyzing trace with hash 955245470, now seen corresponding path program 1 times [2018-11-07 20:59:31,658 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:59:31,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:59:31,659 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:59:31,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:59:31,660 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:59:31,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:59:31,981 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:59:31,982 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:59:31,982 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 20:59:31,982 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:59:31,983 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 20:59:31,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 20:59:31,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 20:59:31,983 INFO L87 Difference]: Start difference. First operand 4198 states and 6423 transitions. Second operand 6 states. [2018-11-07 20:59:36,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:59:36,980 INFO L93 Difference]: Finished difference Result 12514 states and 20047 transitions. [2018-11-07 20:59:36,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 20:59:36,980 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 177 [2018-11-07 20:59:36,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:59:37,041 INFO L225 Difference]: With dead ends: 12514 [2018-11-07 20:59:37,041 INFO L226 Difference]: Without dead ends: 8322 [2018-11-07 20:59:37,064 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 20:59:37,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8322 states. [2018-11-07 20:59:37,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8322 to 8265. [2018-11-07 20:59:37,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8265 states. [2018-11-07 20:59:37,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8265 states to 8265 states and 12163 transitions. [2018-11-07 20:59:37,357 INFO L78 Accepts]: Start accepts. Automaton has 8265 states and 12163 transitions. Word has length 177 [2018-11-07 20:59:37,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:59:37,358 INFO L480 AbstractCegarLoop]: Abstraction has 8265 states and 12163 transitions. [2018-11-07 20:59:37,358 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 20:59:37,358 INFO L276 IsEmpty]: Start isEmpty. Operand 8265 states and 12163 transitions. [2018-11-07 20:59:37,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2018-11-07 20:59:37,365 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:59:37,365 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:59:37,366 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:59:37,366 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:59:37,366 INFO L82 PathProgramCache]: Analyzing trace with hash 601384290, now seen corresponding path program 1 times [2018-11-07 20:59:37,366 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:59:37,372 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:59:37,372 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:59:37,373 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:59:37,373 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:59:37,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:59:38,025 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:59:38,026 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:59:38,026 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-07 20:59:38,026 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:59:38,027 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-07 20:59:38,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-07 20:59:38,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-07 20:59:38,028 INFO L87 Difference]: Start difference. First operand 8265 states and 12163 transitions. Second operand 7 states. [2018-11-07 20:59:51,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:59:51,665 INFO L93 Difference]: Finished difference Result 24687 states and 41855 transitions. [2018-11-07 20:59:51,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-07 20:59:51,666 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 195 [2018-11-07 20:59:51,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:59:51,825 INFO L225 Difference]: With dead ends: 24687 [2018-11-07 20:59:51,825 INFO L226 Difference]: Without dead ends: 16428 [2018-11-07 20:59:51,905 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-07 20:59:51,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16428 states. [2018-11-07 20:59:52,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16428 to 16185. [2018-11-07 20:59:52,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16185 states. [2018-11-07 20:59:52,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16185 states to 16185 states and 25413 transitions. [2018-11-07 20:59:52,681 INFO L78 Accepts]: Start accepts. Automaton has 16185 states and 25413 transitions. Word has length 195 [2018-11-07 20:59:52,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:59:52,682 INFO L480 AbstractCegarLoop]: Abstraction has 16185 states and 25413 transitions. [2018-11-07 20:59:52,682 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-07 20:59:52,682 INFO L276 IsEmpty]: Start isEmpty. Operand 16185 states and 25413 transitions. [2018-11-07 20:59:52,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2018-11-07 20:59:52,701 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:59:52,701 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, 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] [2018-11-07 20:59:52,701 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:59:52,702 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:59:52,702 INFO L82 PathProgramCache]: Analyzing trace with hash -1927103323, now seen corresponding path program 1 times [2018-11-07 20:59:52,702 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:59:52,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:59:52,703 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:59:52,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:59:52,703 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:59:52,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:59:53,023 WARN L179 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 20:59:53,439 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 109 proven. 7 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-11-07 20:59:53,440 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:59:53,440 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:59:53,440 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 220 with the following transitions: [2018-11-07 20:59:53,441 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], [1098], [1100], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1262], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-11-07 20:59:53,445 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:59:53,445 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:59:53,524 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:59:53,982 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 20:59:53,982 INFO L272 AbstractInterpreter]: Visited 92 different actions 262 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-07 20:59:54,026 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:59:54,026 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 20:59:54,026 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:59:54,026 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 20:59:54,038 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:59:54,039 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 20:59:54,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:59:54,121 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 20:59:54,566 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 181 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:59:54,566 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 20:59:55,014 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 181 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:59:55,047 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 20:59:55,047 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-11-07 20:59:55,048 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 20:59:55,048 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-07 20:59:55,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-07 20:59:55,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-07 20:59:55,049 INFO L87 Difference]: Start difference. First operand 16185 states and 25413 transitions. Second operand 9 states. [2018-11-07 21:00:01,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:00:01,365 INFO L93 Difference]: Finished difference Result 38203 states and 61283 transitions. [2018-11-07 21:00:01,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-07 21:00:01,371 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 219 [2018-11-07 21:00:01,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:00:01,444 INFO L225 Difference]: With dead ends: 38203 [2018-11-07 21:00:01,444 INFO L226 Difference]: Without dead ends: 19325 [2018-11-07 21:00:01,506 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 436 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2018-11-07 21:00:01,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19325 states. [2018-11-07 21:00:01,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19325 to 19241. [2018-11-07 21:00:01,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19241 states. [2018-11-07 21:00:01,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19241 states to 19241 states and 25124 transitions. [2018-11-07 21:00:01,937 INFO L78 Accepts]: Start accepts. Automaton has 19241 states and 25124 transitions. Word has length 219 [2018-11-07 21:00:01,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:00:01,937 INFO L480 AbstractCegarLoop]: Abstraction has 19241 states and 25124 transitions. [2018-11-07 21:00:01,937 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-07 21:00:01,937 INFO L276 IsEmpty]: Start isEmpty. Operand 19241 states and 25124 transitions. [2018-11-07 21:00:01,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2018-11-07 21:00:01,943 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:00:01,943 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 21:00:01,943 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:00:01,943 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:00:01,944 INFO L82 PathProgramCache]: Analyzing trace with hash -452146073, now seen corresponding path program 1 times [2018-11-07 21:00:01,944 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:00:01,944 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:00:01,948 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:00:01,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:00:01,949 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:00:01,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:00:02,274 WARN L179 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 21:00:02,442 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 126 proven. 62 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-07 21:00:02,443 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:00:02,443 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 21:00:02,443 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 237 with the following transitions: [2018-11-07 21:00:02,444 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], [1098], [1100], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1278], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-11-07 21:00:02,450 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 21:00:02,450 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 21:00:02,540 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 21:00:03,353 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 21:00:03,354 INFO L272 AbstractInterpreter]: Visited 97 different actions 382 times. Merged at 7 different actions 28 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 26 variables. [2018-11-07 21:00:03,381 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:00:03,381 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 21:00:03,381 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:00:03,381 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 21:00:03,398 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:00:03,399 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 21:00:03,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:00:03,480 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 21:00:03,598 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-11-07 21:00:03,598 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 21:00:03,743 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-11-07 21:00:03,764 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-07 21:00:03,764 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 8 [2018-11-07 21:00:03,764 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:00:03,765 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 21:00:03,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 21:00:03,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-07 21:00:03,766 INFO L87 Difference]: Start difference. First operand 19241 states and 25124 transitions. Second operand 3 states. [2018-11-07 21:00:06,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:00:06,907 INFO L93 Difference]: Finished difference Result 38476 states and 50242 transitions. [2018-11-07 21:00:06,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 21:00:06,908 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 236 [2018-11-07 21:00:06,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:00:06,958 INFO L225 Difference]: With dead ends: 38476 [2018-11-07 21:00:06,959 INFO L226 Difference]: Without dead ends: 19241 [2018-11-07 21:00:07,003 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 483 GetRequests, 472 SyntacticMatches, 5 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-07 21:00:07,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19241 states. [2018-11-07 21:00:07,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19241 to 18363. [2018-11-07 21:00:07,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18363 states. [2018-11-07 21:00:07,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18363 states to 18363 states and 23214 transitions. [2018-11-07 21:00:07,369 INFO L78 Accepts]: Start accepts. Automaton has 18363 states and 23214 transitions. Word has length 236 [2018-11-07 21:00:07,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:00:07,370 INFO L480 AbstractCegarLoop]: Abstraction has 18363 states and 23214 transitions. [2018-11-07 21:00:07,370 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 21:00:07,370 INFO L276 IsEmpty]: Start isEmpty. Operand 18363 states and 23214 transitions. [2018-11-07 21:00:07,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2018-11-07 21:00:07,376 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:00:07,377 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 21:00:07,377 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:00:07,377 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:00:07,377 INFO L82 PathProgramCache]: Analyzing trace with hash -684610887, now seen corresponding path program 1 times [2018-11-07 21:00:07,377 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:00:07,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:00:07,378 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:00:07,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:00:07,379 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:00:07,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:00:07,709 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-11-07 21:00:07,709 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 21:00:07,710 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 21:00:07,710 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:00:07,710 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 21:00:07,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 21:00:07,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 21:00:07,711 INFO L87 Difference]: Start difference. First operand 18363 states and 23214 transitions. Second operand 3 states. [2018-11-07 21:00:11,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:00:11,845 INFO L93 Difference]: Finished difference Result 50414 states and 65202 transitions. [2018-11-07 21:00:11,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 21:00:11,846 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 270 [2018-11-07 21:00:11,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:00:11,941 INFO L225 Difference]: With dead ends: 50414 [2018-11-07 21:00:11,941 INFO L226 Difference]: Without dead ends: 32057 [2018-11-07 21:00:11,983 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 21:00:12,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32057 states. [2018-11-07 21:00:12,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32057 to 32045. [2018-11-07 21:00:12,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32045 states. [2018-11-07 21:00:12,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32045 states to 32045 states and 40536 transitions. [2018-11-07 21:00:12,548 INFO L78 Accepts]: Start accepts. Automaton has 32045 states and 40536 transitions. Word has length 270 [2018-11-07 21:00:12,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:00:12,549 INFO L480 AbstractCegarLoop]: Abstraction has 32045 states and 40536 transitions. [2018-11-07 21:00:12,549 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 21:00:12,549 INFO L276 IsEmpty]: Start isEmpty. Operand 32045 states and 40536 transitions. [2018-11-07 21:00:12,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2018-11-07 21:00:12,566 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:00:12,567 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-07 21:00:12,567 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:00:12,567 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:00:12,567 INFO L82 PathProgramCache]: Analyzing trace with hash -143253662, now seen corresponding path program 1 times [2018-11-07 21:00:12,567 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:00:12,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:00:12,568 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:00:12,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:00:12,569 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:00:12,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:00:13,608 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 174 proven. 258 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 21:00:13,609 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:00:13,609 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 21:00:13,609 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 359 with the following transitions: [2018-11-07 21:00:13,609 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], [1098], [1100], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [1283], [1287], [1291], [1295], [1299], [1303], [1307], [1318], [1322], [1326], [1330], [1333], [1334], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-11-07 21:00:13,614 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 21:00:13,614 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 21:00:13,712 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 21:00:14,487 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 21:00:14,488 INFO L272 AbstractInterpreter]: Visited 120 different actions 470 times. Merged at 7 different actions 24 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 26 variables. [2018-11-07 21:00:14,526 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:00:14,526 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 21:00:14,526 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:00:14,526 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 21:00:14,540 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:00:14,540 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 21:00:14,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:00:14,644 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 21:00:15,233 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 380 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2018-11-07 21:00:15,233 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 21:00:16,516 WARN L179 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2018-11-07 21:00:16,522 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 21:00:17,383 WARN L179 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 24 [2018-11-07 21:00:18,009 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 168 proven. 264 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 21:00:18,029 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 21:00:18,029 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 20 [2018-11-07 21:00:18,029 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 21:00:18,030 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-07 21:00:18,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-07 21:00:18,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2018-11-07 21:00:18,031 INFO L87 Difference]: Start difference. First operand 32045 states and 40536 transitions. Second operand 15 states. [2018-11-07 21:00:27,618 WARN L179 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 27 [2018-11-07 21:00:42,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:00:42,403 INFO L93 Difference]: Finished difference Result 94824 states and 128249 transitions. [2018-11-07 21:00:42,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2018-11-07 21:00:42,403 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 358 [2018-11-07 21:00:42,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:00:42,659 INFO L225 Difference]: With dead ends: 94824 [2018-11-07 21:00:42,659 INFO L226 Difference]: Without dead ends: 60967 [2018-11-07 21:00:42,759 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 833 GetRequests, 756 SyntacticMatches, 3 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1797 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=1177, Invalid=4523, Unknown=0, NotChecked=0, Total=5700 [2018-11-07 21:00:42,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60967 states. [2018-11-07 21:00:44,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60967 to 58227. [2018-11-07 21:00:44,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58227 states. [2018-11-07 21:00:44,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58227 states to 58227 states and 74803 transitions. [2018-11-07 21:00:44,173 INFO L78 Accepts]: Start accepts. Automaton has 58227 states and 74803 transitions. Word has length 358 [2018-11-07 21:00:44,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:00:44,174 INFO L480 AbstractCegarLoop]: Abstraction has 58227 states and 74803 transitions. [2018-11-07 21:00:44,174 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-07 21:00:44,174 INFO L276 IsEmpty]: Start isEmpty. Operand 58227 states and 74803 transitions. [2018-11-07 21:00:44,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2018-11-07 21:00:44,194 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:00:44,194 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:00:44,195 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:00:44,195 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:00:44,195 INFO L82 PathProgramCache]: Analyzing trace with hash 346218914, now seen corresponding path program 1 times [2018-11-07 21:00:44,195 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:00:44,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:00:44,197 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:00:44,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:00:44,197 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:00:44,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:00:44,683 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:00:44,684 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:00:44,684 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 21:00:44,684 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 410 with the following transitions: [2018-11-07 21:00:44,685 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [37], [41], [45], [56], [60], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [115], [119], [123], [127], [138], [142], [146], [150], [154], [158], [169], [173], [177], [181], [185], [189], [193], [204], [208], [212], [216], [227], [231], [235], [239], [250], [254], [258], [262], [266], [270], [273], [710], [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], [1098], [1100], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1283], [1287], [1291], [1295], [1299], [1303], [1307], [1318], [1322], [1326], [1330], [1334], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1413], [1417], [1428], [1432], [1436], [1440], [1451], [1455], [1459], [1463], [1467], [1471], [1475], [1479], [1490], [1501], [1505], [1516], [1520], [1524], [1528], [1532], [1536], [1540], [1544], [1548], [1559], [1563], [1567], [1578], [1582], [1593], [1597], [1601], [1612], [1623], [1627], [1631], [1635], [1639], [1643], [1647], [1651], [1655], [1659], [1663], [1667], [1678], [1689], [1693], [1697], [1701], [1705], [1709], [1713], [1717], [1728], [1732], [1736], [1747], [1751], [1755], [1759], [1763], [1767], [1771], [1775], [1779], [1783], [1787], [1791], [1795], [1799], [1803], [1807], [1818], [1822], [1826], [1830], [1834], [1838], [1842], [1846], [1850], [1854], [1858], [1862], [1866], [1870], [1874], [1878], [1882], [1886], [1890], [1894], [1898], [1902], [1906], [1910], [1914], [1918], [1922], [1933], [1937], [1941], [1945], [1949], [1960], [1964], [1968], [1972], [1976], [1980], [1984], [1988], [1992], [1996], [2000], [2004], [2008], [2012], [2016], [2020], [2024], [2028], [2039], [2043], [2047], [2051], [2055], [2066], [2070], [2074], [2078], [2089], [2093], [2104], [2108], [2119], [2123], [2127], [2131], [2135], [2139], [2143], [2147], [2151], [2155], [2159], [2163], [2167], [2171], [2175], [2179], [2183], [2187], [2191], [2202], [2206], [2210], [2214], [2218], [2229], [2233], [2237], [2241], [2252], [2256], [2260], [2264], [2268], [2272], [2276], [2278], [2279], [2283], [2287], [2293], [2297], [2299], [2304], [2305], [2306], [2307], [2308], [2310], [2311] [2018-11-07 21:00:44,692 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 21:00:44,692 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 21:00:48,006 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 21:00:48,007 INFO L272 AbstractInterpreter]: Visited 356 different actions 2105 times. Merged at 5 different actions 25 times. Widened at 1 different actions 1 times. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-07 21:00:48,038 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:00:48,038 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 21:00:48,039 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:00:48,039 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 21:00:48,047 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:00:48,047 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 21:00:48,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:00:48,164 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 21:00:48,382 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:00:48,382 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 21:00:48,906 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:00:48,928 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-07 21:00:48,928 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 11 [2018-11-07 21:00:48,928 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:00:48,929 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 21:00:48,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 21:00:48,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2018-11-07 21:00:48,930 INFO L87 Difference]: Start difference. First operand 58227 states and 74803 transitions. Second operand 6 states. [2018-11-07 21:00:57,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:00:57,522 INFO L93 Difference]: Finished difference Result 135253 states and 172766 transitions. [2018-11-07 21:00:57,522 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 21:00:57,522 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 409 [2018-11-07 21:00:57,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:00:57,760 INFO L225 Difference]: With dead ends: 135253 [2018-11-07 21:00:57,760 INFO L226 Difference]: Without dead ends: 74369 [2018-11-07 21:00:57,853 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 828 GetRequests, 817 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2018-11-07 21:00:57,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74369 states. [2018-11-07 21:00:58,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74369 to 71721. [2018-11-07 21:00:58,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71721 states. [2018-11-07 21:00:59,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71721 states to 71721 states and 91025 transitions. [2018-11-07 21:00:59,162 INFO L78 Accepts]: Start accepts. Automaton has 71721 states and 91025 transitions. Word has length 409 [2018-11-07 21:00:59,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:00:59,163 INFO L480 AbstractCegarLoop]: Abstraction has 71721 states and 91025 transitions. [2018-11-07 21:00:59,163 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 21:00:59,163 INFO L276 IsEmpty]: Start isEmpty. Operand 71721 states and 91025 transitions. [2018-11-07 21:00:59,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2018-11-07 21:00:59,187 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:00:59,188 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:00:59,188 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:00:59,188 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:00:59,189 INFO L82 PathProgramCache]: Analyzing trace with hash 308004651, now seen corresponding path program 1 times [2018-11-07 21:00:59,189 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:00:59,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:00:59,190 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:00:59,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:00:59,190 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:00:59,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:01:00,492 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 109 proven. 6 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2018-11-07 21:01:00,492 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:01:00,492 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 21:01:00,493 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 452 with the following transitions: [2018-11-07 21:01:00,493 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [37], [40], [710], [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], [1098], [1100], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [1283], [1287], [1291], [1295], [1299], [1303], [1307], [1318], [1322], [1326], [1330], [1334], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1413], [1417], [1428], [1432], [1436], [1440], [1451], [1455], [1459], [1463], [1467], [1471], [1475], [1479], [1490], [1501], [1505], [1516], [1520], [1524], [1528], [1532], [1536], [1540], [1544], [1548], [1559], [1563], [1567], [1578], [1582], [1593], [1597], [1601], [1612], [1623], [1627], [1631], [1635], [1639], [1643], [1647], [1651], [1655], [1659], [1663], [1667], [1678], [1689], [1693], [1697], [1701], [1705], [1709], [1713], [1717], [1728], [1732], [1736], [1747], [1751], [1755], [1759], [1763], [1767], [1771], [1775], [1779], [1783], [1787], [1791], [1795], [1799], [1803], [1807], [1818], [1822], [1826], [1830], [1834], [1838], [1842], [1846], [1850], [1854], [1858], [1862], [1866], [1870], [1874], [1878], [1882], [1886], [1890], [1894], [1898], [1902], [1906], [1910], [1914], [1918], [1922], [1933], [1937], [1941], [1945], [1949], [1960], [1964], [1968], [1972], [1976], [1980], [1984], [1988], [1992], [1996], [2000], [2004], [2008], [2012], [2016], [2020], [2024], [2028], [2039], [2043], [2047], [2051], [2055], [2066], [2070], [2074], [2078], [2089], [2093], [2104], [2108], [2119], [2123], [2127], [2131], [2135], [2139], [2143], [2147], [2151], [2155], [2159], [2163], [2167], [2171], [2175], [2179], [2183], [2187], [2191], [2202], [2206], [2210], [2214], [2218], [2229], [2233], [2237], [2241], [2252], [2256], [2260], [2264], [2268], [2272], [2276], [2278], [2279], [2283], [2287], [2293], [2297], [2299], [2304], [2305], [2306], [2307], [2308], [2310], [2311] [2018-11-07 21:01:00,498 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 21:01:00,499 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 21:01:00,592 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 21:01:04,161 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 21:01:04,162 INFO L272 AbstractInterpreter]: Visited 311 different actions 2151 times. Merged at 7 different actions 44 times. Widened at 1 different actions 2 times. Found 7 fixpoints after 2 different actions. Largest state had 26 variables. [2018-11-07 21:01:04,165 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:01:04,165 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 21:01:04,165 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:01:04,165 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 21:01:04,175 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:01:04,176 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 21:01:04,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:01:04,317 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 21:01:05,017 WARN L179 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-11-07 21:01:05,588 WARN L179 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 15 [2018-11-07 21:01:06,525 WARN L179 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2018-11-07 21:01:07,103 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-11-07 21:01:07,103 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 21:01:09,347 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 64 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:01:09,367 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 21:01:09,368 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 7] total 20 [2018-11-07 21:01:09,368 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 21:01:09,368 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-07 21:01:09,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-07 21:01:09,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2018-11-07 21:01:09,369 INFO L87 Difference]: Start difference. First operand 71721 states and 91025 transitions. Second operand 15 states. [2018-11-07 21:02:02,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:02:02,231 INFO L93 Difference]: Finished difference Result 210059 states and 289256 transitions. [2018-11-07 21:02:02,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2018-11-07 21:02:02,233 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 451 [2018-11-07 21:02:02,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:02:02,745 INFO L225 Difference]: With dead ends: 210059 [2018-11-07 21:02:02,745 INFO L226 Difference]: Without dead ends: 131019 [2018-11-07 21:02:02,904 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 972 GetRequests, 892 SyntacticMatches, 4 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1606 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=913, Invalid=5093, Unknown=0, NotChecked=0, Total=6006 [2018-11-07 21:02:02,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131019 states. [2018-11-07 21:02:05,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131019 to 123363. [2018-11-07 21:02:05,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123363 states. Received shutdown request... [2018-11-07 21:02:06,023 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 21:02:06,029 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 21:02:06,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 09:02:06 BoogieIcfgContainer [2018-11-07 21:02:06,030 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 21:02:06,031 INFO L168 Benchmark]: Toolchain (without parser) took 227238.75 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -700.3 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. [2018-11-07 21:02:06,033 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. [2018-11-07 21:02:06,034 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1696.66 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. [2018-11-07 21:02:06,035 INFO L168 Benchmark]: Boogie Procedure Inliner took 275.59 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 776.5 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -956.9 MB). Peak memory consumption was 42.5 MB. Max. memory is 7.1 GB. [2018-11-07 21:02:06,036 INFO L168 Benchmark]: Boogie Preprocessor took 232.69 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: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2018-11-07 21:02:06,037 INFO L168 Benchmark]: RCFGBuilder took 10217.96 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 453.0 MB). Peak memory consumption was 453.0 MB. Max. memory is 7.1 GB. [2018-11-07 21:02:06,038 INFO L168 Benchmark]: TraceAbstraction took 214808.52 ms. Allocated memory was 2.3 GB in the beginning and 4.0 GB in the end (delta: 1.6 GB). Free memory was 1.8 GB in the beginning and 2.1 GB in the end (delta: -347.4 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2018-11-07 21:02:06,045 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 1696.66 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 275.59 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 776.5 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -956.9 MB). Peak memory consumption was 42.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 232.69 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: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10217.96 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 453.0 MB). Peak memory consumption was 453.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 214808.52 ms. Allocated memory was 2.3 GB in the beginning and 4.0 GB in the end (delta: 1.6 GB). Free memory was 1.8 GB in the beginning and 2.1 GB in the end (delta: -347.4 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 170]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 170). Cancelled while ReachableStatesComputation was computing reachable states (119769 states constructedinput type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 214.7s OverallTime, 10 OverallIterations, 4 TraceHistogramMax, 152.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3103 SDtfs, 26636 SDslu, 5569 SDs, 0 SdLazy, 66645 SolverSat, 11205 SolverUnsat, 116 SolverUnknown, 0 SolverNotchecked, 124.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3883 GetRequests, 3652 SyntacticMatches, 21 SemanticMatches, 210 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3512 ImplicationChecksByTransitivity, 37.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71721occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 10.7s AbstIntTime, 6 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 8.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 6697 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 39.8s InterpolantComputationTime, 4321 NumberOfCodeBlocks, 4321 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 6108 ConstructedInterpolants, 178 QuantifiedInterpolants, 16983931 SizeOfPredicates, 21 NumberOfNonLiveVariables, 2967 ConjunctsInSsa, 71 ConjunctsInUnsatCore, 22 InterpolantComputations, 8 PerfectInterpolantSequences, 2554/3661 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown