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/Problem03_label31_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 16:58:30,722 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 16:58:30,724 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 16:58:30,736 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 16:58:30,737 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 16:58:30,738 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 16:58:30,739 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 16:58:30,741 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 16:58:30,744 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 16:58:30,750 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 16:58:30,750 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 16:58:30,751 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 16:58:30,754 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 16:58:30,757 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 16:58:30,759 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 16:58:30,759 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 16:58:30,760 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 16:58:30,767 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 16:58:30,769 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 16:58:30,770 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 16:58:30,771 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 16:58:30,772 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 16:58:30,774 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 16:58:30,775 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 16:58:30,775 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 16:58:30,776 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 16:58:30,777 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 16:58:30,777 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 16:58:30,778 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 16:58:30,779 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 16:58:30,779 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 16:58:30,780 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 16:58:30,780 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 16:58:30,780 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 16:58:30,781 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 16:58:30,782 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 16:58:30,782 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 16:58:30,797 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 16:58:30,797 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 16:58:30,798 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 16:58:30,798 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 16:58:30,798 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 16:58:30,799 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 16:58:30,799 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-07 16:58:30,799 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 16:58:30,799 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 16:58:30,800 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 16:58:30,800 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 16:58:30,800 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 16:58:30,800 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 16:58:30,801 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 16:58:30,801 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 16:58:30,801 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 16:58:30,801 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 16:58:30,802 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 16:58:30,802 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 16:58:30,802 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 16:58:30,802 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 16:58:30,802 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 16:58:30,803 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 16:58:30,803 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 16:58:30,803 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 16:58:30,803 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 16:58:30,803 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 16:58:30,804 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 16:58:30,804 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 16:58:30,804 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 16:58:30,804 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 16:58:30,804 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 16:58:30,805 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 16:58:30,805 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 16:58:30,805 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 16:58:30,848 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 16:58:30,871 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 16:58:30,875 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 16:58:30,877 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 16:58:30,877 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 16:58:30,878 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label31_false-unreach-call.c [2018-11-07 16:58:30,944 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/849dbbf73/78aad14007844f20b65653179ecf48a9/FLAGc7ce45c50 [2018-11-07 16:58:31,666 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 16:58:31,667 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label31_false-unreach-call.c [2018-11-07 16:58:31,689 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/849dbbf73/78aad14007844f20b65653179ecf48a9/FLAGc7ce45c50 [2018-11-07 16:58:31,707 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/849dbbf73/78aad14007844f20b65653179ecf48a9 [2018-11-07 16:58:31,721 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 16:58:31,722 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 16:58:31,723 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 16:58:31,723 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 16:58:31,728 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 16:58:31,729 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:58:31" (1/1) ... [2018-11-07 16:58:31,733 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41600c68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:58:31, skipping insertion in model container [2018-11-07 16:58:31,733 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:58:31" (1/1) ... [2018-11-07 16:58:31,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 16:58:31,846 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 16:58:32,544 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 16:58:32,549 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 16:58:33,053 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 16:58:33,076 INFO L193 MainTranslator]: Completed translation [2018-11-07 16:58:33,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:58:33 WrapperNode [2018-11-07 16:58:33,077 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 16:58:33,078 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 16:58:33,078 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 16:58:33,079 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 16:58:33,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:58:33" (1/1) ... [2018-11-07 16:58:33,303 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:58:33" (1/1) ... [2018-11-07 16:58:33,321 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 16:58:33,322 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 16:58:33,323 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 16:58:33,323 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 16:58:33,335 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:58:33" (1/1) ... [2018-11-07 16:58:33,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:58:33" (1/1) ... [2018-11-07 16:58:33,347 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:58:33" (1/1) ... [2018-11-07 16:58:33,348 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:58:33" (1/1) ... [2018-11-07 16:58:33,414 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:58:33" (1/1) ... [2018-11-07 16:58:33,448 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:58:33" (1/1) ... [2018-11-07 16:58:33,467 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:58:33" (1/1) ... [2018-11-07 16:58:33,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 16:58:33,484 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 16:58:33,484 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 16:58:33,484 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 16:58:33,485 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:58:33" (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 16:58:33,553 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 16:58:33,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 16:58:33,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 16:58:33,553 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 16:58:33,553 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 16:58:33,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 16:58:33,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 16:58:33,554 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 16:58:33,554 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 16:58:39,416 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 16:58:39,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:58:39 BoogieIcfgContainer [2018-11-07 16:58:39,419 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 16:58:39,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 16:58:39,420 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 16:58:39,425 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 16:58:39,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:58:31" (1/3) ... [2018-11-07 16:58:39,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@501952fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:58:39, skipping insertion in model container [2018-11-07 16:58:39,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:58:33" (2/3) ... [2018-11-07 16:58:39,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@501952fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:58:39, skipping insertion in model container [2018-11-07 16:58:39,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:58:39" (3/3) ... [2018-11-07 16:58:39,433 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label31_false-unreach-call.c [2018-11-07 16:58:39,443 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 16:58:39,458 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 16:58:39,476 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 16:58:39,527 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 16:58:39,527 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 16:58:39,527 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 16:58:39,527 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 16:58:39,527 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 16:58:39,528 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 16:58:39,528 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 16:58:39,528 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 16:58:39,560 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2018-11-07 16:58:39,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2018-11-07 16:58:39,577 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 16:58:39,579 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:39,581 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 16:58:39,587 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 16:58:39,588 INFO L82 PathProgramCache]: Analyzing trace with hash -489199711, now seen corresponding path program 1 times [2018-11-07 16:58:39,591 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 16:58:39,643 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 16:58:39,643 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 16:58:39,643 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 16:58:39,643 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 16:58:39,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 16:58:40,701 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 16:58:40,704 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 16:58:40,705 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 16:58:40,705 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 16:58:40,711 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 16:58:40,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 16:58:40,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 16:58:40,731 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 4 states. [2018-11-07 16:58:44,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 16:58:44,455 INFO L93 Difference]: Finished difference Result 1085 states and 1949 transitions. [2018-11-07 16:58:44,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 16:58:44,459 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 158 [2018-11-07 16:58:44,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 16:58:44,485 INFO L225 Difference]: With dead ends: 1085 [2018-11-07 16:58:44,485 INFO L226 Difference]: Without dead ends: 767 [2018-11-07 16:58:44,495 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 16:58:44,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2018-11-07 16:58:44,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 523. [2018-11-07 16:58:44,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 523 states. [2018-11-07 16:58:44,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 922 transitions. [2018-11-07 16:58:44,630 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 922 transitions. Word has length 158 [2018-11-07 16:58:44,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 16:58:44,631 INFO L480 AbstractCegarLoop]: Abstraction has 523 states and 922 transitions. [2018-11-07 16:58:44,632 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 16:58:44,632 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 922 transitions. [2018-11-07 16:58:44,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2018-11-07 16:58:44,639 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 16:58:44,640 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 16:58:44,640 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 16:58:44,641 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 16:58:44,641 INFO L82 PathProgramCache]: Analyzing trace with hash 690659536, now seen corresponding path program 1 times [2018-11-07 16:58:44,641 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 16:58:44,643 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 16:58:44,643 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 16:58:44,643 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 16:58:44,643 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 16:58:44,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 16:58:44,967 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 16:58:44,967 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 16:58:44,968 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 16:58:44,968 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 16:58:44,970 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 16:58:44,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 16:58:44,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 16:58:44,971 INFO L87 Difference]: Start difference. First operand 523 states and 922 transitions. Second operand 5 states. [2018-11-07 16:58:48,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 16:58:48,740 INFO L93 Difference]: Finished difference Result 1613 states and 2944 transitions. [2018-11-07 16:58:48,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 16:58:48,743 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 169 [2018-11-07 16:58:48,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 16:58:48,756 INFO L225 Difference]: With dead ends: 1613 [2018-11-07 16:58:48,756 INFO L226 Difference]: Without dead ends: 1096 [2018-11-07 16:58:48,760 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 16:58:48,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2018-11-07 16:58:48,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 1073. [2018-11-07 16:58:48,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1073 states. [2018-11-07 16:58:48,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1073 states to 1073 states and 1774 transitions. [2018-11-07 16:58:48,843 INFO L78 Accepts]: Start accepts. Automaton has 1073 states and 1774 transitions. Word has length 169 [2018-11-07 16:58:48,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 16:58:48,844 INFO L480 AbstractCegarLoop]: Abstraction has 1073 states and 1774 transitions. [2018-11-07 16:58:48,844 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 16:58:48,844 INFO L276 IsEmpty]: Start isEmpty. Operand 1073 states and 1774 transitions. [2018-11-07 16:58:48,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2018-11-07 16:58:48,856 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 16:58:48,856 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 16:58:48,857 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 16:58:48,857 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 16:58:48,857 INFO L82 PathProgramCache]: Analyzing trace with hash -427347419, now seen corresponding path program 1 times [2018-11-07 16:58:48,858 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 16:58:48,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 16:58:48,859 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 16:58:48,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 16:58:48,859 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 16:58:48,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 16:58:49,349 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 16:58:49,350 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 16:58:49,350 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 16:58:49,351 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 172 with the following transitions: [2018-11-07 16:58:49,354 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [25], [28], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [725], [727], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-11-07 16:58:49,414 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 16:58:49,415 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 16:58:50,923 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 16:58:50,926 INFO L272 AbstractInterpreter]: Visited 158 different actions 158 times. Never merged. Never widened. Never found a fixpoint. Largest state had 88 variables. [2018-11-07 16:58:50,973 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 16:58:50,973 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 16:58:52,279 INFO L227 lantSequenceWeakener]: Weakened 165 states. On average, predicates are now at 70.45% of their original sizes. [2018-11-07 16:58:52,280 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 16:58:53,172 INFO L415 sIntCurrentIteration]: We unified 170 AI predicates to 170 [2018-11-07 16:58:53,173 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 16:58:53,174 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 16:58:53,174 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [7] total 20 [2018-11-07 16:58:53,175 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 16:58:53,176 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-07 16:58:53,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-07 16:58:53,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2018-11-07 16:58:53,176 INFO L87 Difference]: Start difference. First operand 1073 states and 1774 transitions. Second operand 15 states. [2018-11-07 16:59:23,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 16:59:23,467 INFO L93 Difference]: Finished difference Result 2350 states and 3872 transitions. [2018-11-07 16:59:23,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-07 16:59:23,467 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 171 [2018-11-07 16:59:23,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 16:59:23,474 INFO L225 Difference]: With dead ends: 2350 [2018-11-07 16:59:23,474 INFO L226 Difference]: Without dead ends: 1283 [2018-11-07 16:59:23,477 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 173 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2018-11-07 16:59:23,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1283 states. [2018-11-07 16:59:23,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1283 to 1281. [2018-11-07 16:59:23,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1281 states. [2018-11-07 16:59:23,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1281 states to 1281 states and 1990 transitions. [2018-11-07 16:59:23,513 INFO L78 Accepts]: Start accepts. Automaton has 1281 states and 1990 transitions. Word has length 171 [2018-11-07 16:59:23,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 16:59:23,513 INFO L480 AbstractCegarLoop]: Abstraction has 1281 states and 1990 transitions. [2018-11-07 16:59:23,513 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-07 16:59:23,513 INFO L276 IsEmpty]: Start isEmpty. Operand 1281 states and 1990 transitions. [2018-11-07 16:59:23,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2018-11-07 16:59:23,517 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 16:59:23,518 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 16:59:23,518 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 16:59:23,518 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 16:59:23,519 INFO L82 PathProgramCache]: Analyzing trace with hash -1617695120, now seen corresponding path program 1 times [2018-11-07 16:59:23,519 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 16:59:23,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 16:59:23,520 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 16:59:23,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 16:59:23,520 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 16:59:23,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 16:59:23,875 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 16:59:23,876 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 16:59:23,876 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 16:59:23,876 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 181 with the following transitions: [2018-11-07 16:59:23,877 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [64], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [725], [727], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-11-07 16:59:23,889 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 16:59:23,889 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 16:59:25,617 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 16:59:25,617 INFO L272 AbstractInterpreter]: Visited 162 different actions 316 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 88 variables. [2018-11-07 16:59:25,624 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 16:59:25,625 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 16:59:25,625 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 16:59:25,625 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 16:59:25,636 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 16:59:25,636 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 16:59:25,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 16:59:25,806 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 16:59:25,949 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 16:59:25,949 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 16:59:26,403 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 16:59:26,436 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-07 16:59:26,437 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 8 [2018-11-07 16:59:26,437 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 16:59:26,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 16:59:26,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 16:59:26,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-11-07 16:59:26,439 INFO L87 Difference]: Start difference. First operand 1281 states and 1990 transitions. Second operand 3 states. [2018-11-07 16:59:28,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 16:59:28,624 INFO L93 Difference]: Finished difference Result 3286 states and 5449 transitions. [2018-11-07 16:59:28,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 16:59:28,629 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2018-11-07 16:59:28,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 16:59:28,648 INFO L225 Difference]: With dead ends: 3286 [2018-11-07 16:59:28,649 INFO L226 Difference]: Without dead ends: 2219 [2018-11-07 16:59:28,655 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 359 SyntacticMatches, 4 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-11-07 16:59:28,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2219 states. [2018-11-07 16:59:28,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2219 to 2216. [2018-11-07 16:59:28,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2216 states. [2018-11-07 16:59:28,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2216 states to 2216 states and 3218 transitions. [2018-11-07 16:59:28,734 INFO L78 Accepts]: Start accepts. Automaton has 2216 states and 3218 transitions. Word has length 180 [2018-11-07 16:59:28,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 16:59:28,735 INFO L480 AbstractCegarLoop]: Abstraction has 2216 states and 3218 transitions. [2018-11-07 16:59:28,735 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 16:59:28,736 INFO L276 IsEmpty]: Start isEmpty. Operand 2216 states and 3218 transitions. [2018-11-07 16:59:28,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2018-11-07 16:59:28,746 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 16:59:28,746 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:28,746 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 16:59:28,747 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 16:59:28,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1457343189, now seen corresponding path program 1 times [2018-11-07 16:59:28,747 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 16:59:28,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 16:59:28,748 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 16:59:28,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 16:59:28,748 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 16:59:28,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 16:59:29,111 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 69 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 16:59:29,111 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 16:59:29,111 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 16:59:29,111 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 233 with the following transitions: [2018-11-07 16:59:29,112 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [24], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [252], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [725], [727], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-11-07 16:59:29,118 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 16:59:29,118 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 16:59:30,503 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 16:59:30,503 INFO L272 AbstractInterpreter]: Visited 162 different actions 318 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 88 variables. [2018-11-07 16:59:30,508 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 16:59:30,508 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 16:59:32,397 INFO L227 lantSequenceWeakener]: Weakened 77 states. On average, predicates are now at 72.29% of their original sizes. [2018-11-07 16:59:32,397 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 16:59:33,550 INFO L415 sIntCurrentIteration]: We unified 231 AI predicates to 231 [2018-11-07 16:59:33,550 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 16:59:33,550 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 16:59:33,551 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [9] total 28 [2018-11-07 16:59:33,551 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 16:59:33,551 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-07 16:59:33,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-07 16:59:33,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=324, Unknown=0, NotChecked=0, Total=420 [2018-11-07 16:59:33,552 INFO L87 Difference]: Start difference. First operand 2216 states and 3218 transitions. Second operand 21 states. [2018-11-07 17:00:43,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 17:00:43,267 INFO L93 Difference]: Finished difference Result 4849 states and 7110 transitions. [2018-11-07 17:00:43,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-11-07 17:00:43,267 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 232 [2018-11-07 17:00:43,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 17:00:43,281 INFO L225 Difference]: With dead ends: 4849 [2018-11-07 17:00:43,282 INFO L226 Difference]: Without dead ends: 2847 [2018-11-07 17:00:43,288 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 240 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=191, Invalid=679, Unknown=0, NotChecked=0, Total=870 [2018-11-07 17:00:43,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2847 states. [2018-11-07 17:00:43,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2847 to 2844. [2018-11-07 17:00:43,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2844 states. [2018-11-07 17:00:43,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2844 states to 2844 states and 3896 transitions. [2018-11-07 17:00:43,366 INFO L78 Accepts]: Start accepts. Automaton has 2844 states and 3896 transitions. Word has length 232 [2018-11-07 17:00:43,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 17:00:43,367 INFO L480 AbstractCegarLoop]: Abstraction has 2844 states and 3896 transitions. [2018-11-07 17:00:43,367 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-07 17:00:43,367 INFO L276 IsEmpty]: Start isEmpty. Operand 2844 states and 3896 transitions. [2018-11-07 17:00:43,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2018-11-07 17:00:43,377 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 17:00:43,378 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:00:43,378 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 17:00:43,378 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 17:00:43,379 INFO L82 PathProgramCache]: Analyzing trace with hash 228180764, now seen corresponding path program 1 times [2018-11-07 17:00:43,379 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 17:00:43,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 17:00:43,380 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 17:00:43,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 17:00:43,380 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 17:00:43,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 17:00:43,924 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 112 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 17:00:43,925 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 17:00:43,925 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 17:00:43,925 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 259 with the following transitions: [2018-11-07 17:00:43,926 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [64], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [315], [320], [322], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [725], [727], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-11-07 17:00:43,932 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 17:00:43,932 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 17:00:46,684 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 17:00:46,685 INFO L272 AbstractInterpreter]: Visited 165 different actions 488 times. Merged at 7 different actions 18 times. Never widened. Found 3 fixpoints after 3 different actions. Largest state had 88 variables. [2018-11-07 17:00:46,694 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 17:00:46,694 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 17:00:46,694 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 17:00:46,694 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 17:00:46,704 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 17:00:46,704 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 17:00:46,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 17:00:46,890 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 17:00:47,319 WARN L179 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 10 [2018-11-07 17:00:47,379 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 112 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 17:00:47,379 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 17:00:47,513 WARN L179 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 23 [2018-11-07 17:00:47,885 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 112 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 17:00:47,922 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 17:00:47,922 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2018-11-07 17:00:47,922 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 17:00:47,923 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-07 17:00:47,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-07 17:00:47,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2018-11-07 17:00:47,924 INFO L87 Difference]: Start difference. First operand 2844 states and 3896 transitions. Second operand 10 states. [2018-11-07 17:00:56,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 17:00:56,300 INFO L93 Difference]: Finished difference Result 5995 states and 9539 transitions. [2018-11-07 17:00:56,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2018-11-07 17:00:56,301 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 258 [2018-11-07 17:00:56,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 17:00:56,333 INFO L225 Difference]: With dead ends: 5995 [2018-11-07 17:00:56,333 INFO L226 Difference]: Without dead ends: 3992 [2018-11-07 17:00:56,349 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 594 GetRequests, 536 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1045 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=659, Invalid=2763, Unknown=0, NotChecked=0, Total=3422 [2018-11-07 17:00:56,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3992 states. [2018-11-07 17:00:56,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3992 to 3716. [2018-11-07 17:00:56,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3716 states. [2018-11-07 17:00:56,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3716 states to 3716 states and 4936 transitions. [2018-11-07 17:00:56,499 INFO L78 Accepts]: Start accepts. Automaton has 3716 states and 4936 transitions. Word has length 258 [2018-11-07 17:00:56,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 17:00:56,500 INFO L480 AbstractCegarLoop]: Abstraction has 3716 states and 4936 transitions. [2018-11-07 17:00:56,500 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-07 17:00:56,501 INFO L276 IsEmpty]: Start isEmpty. Operand 3716 states and 4936 transitions. [2018-11-07 17:00:56,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2018-11-07 17:00:56,513 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 17:00:56,513 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 17:00:56,514 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 17:00:56,514 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 17:00:56,514 INFO L82 PathProgramCache]: Analyzing trace with hash -322482873, now seen corresponding path program 1 times [2018-11-07 17:00:56,514 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 17:00:56,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 17:00:56,515 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 17:00:56,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 17:00:56,515 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 17:00:56,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 17:00:56,926 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 17:00:57,831 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 89 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 17:00:57,832 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 17:00:57,832 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 17:00:57,833 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 260 with the following transitions: [2018-11-07 17:00:57,833 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [436], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [725], [727], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-11-07 17:00:57,838 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 17:00:57,838 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 17:00:58,914 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 17:00:58,914 INFO L272 AbstractInterpreter]: Visited 161 different actions 316 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 88 variables. [2018-11-07 17:00:58,923 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 17:00:58,923 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 17:00:59,964 INFO L227 lantSequenceWeakener]: Weakened 256 states. On average, predicates are now at 70.22% of their original sizes. [2018-11-07 17:00:59,964 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 17:01:00,223 INFO L415 sIntCurrentIteration]: We unified 258 AI predicates to 258 [2018-11-07 17:01:00,223 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 17:01:00,224 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 17:01:00,224 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [7] total 22 [2018-11-07 17:01:00,224 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 17:01:00,225 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-07 17:01:00,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-07 17:01:00,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2018-11-07 17:01:00,226 INFO L87 Difference]: Start difference. First operand 3716 states and 4936 transitions. Second operand 17 states. [2018-11-07 17:02:28,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 17:02:28,265 INFO L93 Difference]: Finished difference Result 7133 states and 9994 transitions. [2018-11-07 17:02:28,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-07 17:02:28,265 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 259 [2018-11-07 17:02:28,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 17:02:28,283 INFO L225 Difference]: With dead ends: 7133 [2018-11-07 17:02:28,284 INFO L226 Difference]: Without dead ends: 4907 [2018-11-07 17:02:28,291 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 267 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=149, Invalid=501, Unknown=0, NotChecked=0, Total=650 [2018-11-07 17:02:28,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4907 states. [2018-11-07 17:02:28,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4907 to 4781. [2018-11-07 17:02:28,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4781 states. [2018-11-07 17:02:28,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4781 states to 4781 states and 6222 transitions. [2018-11-07 17:02:28,416 INFO L78 Accepts]: Start accepts. Automaton has 4781 states and 6222 transitions. Word has length 259 [2018-11-07 17:02:28,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 17:02:28,416 INFO L480 AbstractCegarLoop]: Abstraction has 4781 states and 6222 transitions. [2018-11-07 17:02:28,416 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-07 17:02:28,417 INFO L276 IsEmpty]: Start isEmpty. Operand 4781 states and 6222 transitions. [2018-11-07 17:02:28,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2018-11-07 17:02:28,432 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 17:02:28,432 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 17:02:28,433 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 17:02:28,433 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 17:02:28,433 INFO L82 PathProgramCache]: Analyzing trace with hash -1209489308, now seen corresponding path program 1 times [2018-11-07 17:02:28,433 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 17:02:28,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 17:02:28,434 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 17:02:28,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 17:02:28,435 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 17:02:28,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 17:02:29,523 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 108 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 17:02:29,523 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 17:02:29,524 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 17:02:29,524 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 272 with the following transitions: [2018-11-07 17:02:29,524 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [24], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [436], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [725], [727], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-11-07 17:02:29,529 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 17:02:29,530 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 17:02:31,878 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 17:02:31,878 INFO L272 AbstractInterpreter]: Visited 162 different actions 485 times. Merged at 7 different actions 21 times. Never widened. Found 4 fixpoints after 3 different actions. Largest state had 88 variables. [2018-11-07 17:02:31,884 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 17:02:31,884 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates Received shutdown request... [2018-11-07 17:02:33,310 INFO L227 lantSequenceWeakener]: Weakened 268 states. On average, predicates are now at 70.28% of their original sizes. [2018-11-07 17:02:33,310 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 17:02:33,320 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 17:02:33,324 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 17:02:33,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 05:02:33 BoogieIcfgContainer [2018-11-07 17:02:33,324 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 17:02:33,325 INFO L168 Benchmark]: Toolchain (without parser) took 241603.66 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -877.0 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-11-07 17:02:33,326 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 17:02:33,327 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1354.43 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-11-07 17:02:33,327 INFO L168 Benchmark]: Boogie Procedure Inliner took 244.10 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 715.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -837.7 MB). Peak memory consumption was 38.8 MB. Max. memory is 7.1 GB. [2018-11-07 17:02:33,328 INFO L168 Benchmark]: Boogie Preprocessor took 160.78 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 17:02:33,329 INFO L168 Benchmark]: RCFGBuilder took 5935.58 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 269.4 MB). Peak memory consumption was 269.4 MB. Max. memory is 7.1 GB. [2018-11-07 17:02:33,329 INFO L168 Benchmark]: TraceAbstraction took 233903.94 ms. Allocated memory was 2.2 GB in the beginning and 4.0 GB in the end (delta: 1.8 GB). Free memory was 1.9 GB in the beginning and 2.3 GB in the end (delta: -393.2 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-11-07 17:02:33,334 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1354.43 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 244.10 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 715.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -837.7 MB). Peak memory consumption was 38.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 160.78 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 5935.58 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 269.4 MB). Peak memory consumption was 269.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 233903.94 ms. Allocated memory was 2.2 GB in the beginning and 4.0 GB in the end (delta: 1.8 GB). Free memory was 1.9 GB in the beginning and 2.3 GB in the end (delta: -393.2 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1488]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1488). Cancelled while BasicCegarLoop was analyzing trace of length 272 with TraceHistMax 3,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 3 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 312 locations, 1 error locations. TIMEOUT Result, 233.8s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 206.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1962 SDtfs, 9072 SDslu, 3515 SDs, 0 SdLazy, 20802 SolverSat, 2825 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 134.1s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 1658 GetRequests, 1513 SyntacticMatches, 6 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1340 ImplicationChecksByTransitivity, 5.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4781occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 10.9s AbstIntTime, 6 AbstIntIterations, 4 AbstIntStrong, 0.9992725176854695 AbsIntWeakeningRatio, 0.24542518837459634 AbsIntAvgWeakeningVarsNumRemoved, 58.927879440258344 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 7 MinimizatonAttempts, 677 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 1865 NumberOfCodeBlocks, 1865 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 2292 ConstructedInterpolants, 0 QuantifiedInterpolants, 1672497 SizeOfPredicates, 14 NumberOfNonLiveVariables, 1932 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 11 InterpolantComputations, 4 PerfectInterpolantSequences, 538/593 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown