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/Problem16_label07_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-63daa26 [2018-11-12 19:18:11,660 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 19:18:11,662 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 19:18:11,679 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 19:18:11,679 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 19:18:11,680 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 19:18:11,681 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 19:18:11,686 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 19:18:11,689 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 19:18:11,690 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 19:18:11,690 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 19:18:11,694 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 19:18:11,695 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 19:18:11,696 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 19:18:11,697 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 19:18:11,700 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 19:18:11,701 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 19:18:11,703 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 19:18:11,704 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 19:18:11,706 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 19:18:11,707 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 19:18:11,708 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 19:18:11,710 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-12 19:18:11,710 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-12 19:18:11,710 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-12 19:18:11,711 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-12 19:18:11,714 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-12 19:18:11,717 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-12 19:18:11,718 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-12 19:18:11,720 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-12 19:18:11,720 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-12 19:18:11,721 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-12 19:18:11,721 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-12 19:18:11,722 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-12 19:18:11,724 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-12 19:18:11,725 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-12 19:18:11,725 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 [2018-11-12 19:18:11,749 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 19:18:11,749 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 19:18:11,750 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 19:18:11,751 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 19:18:11,751 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 19:18:11,751 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 19:18:11,751 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 19:18:11,751 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 19:18:11,752 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 19:18:11,752 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 19:18:11,752 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 19:18:11,752 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 19:18:11,752 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 19:18:11,753 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 19:18:11,753 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 19:18:11,753 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 19:18:11,754 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 19:18:11,754 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 19:18:11,754 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 19:18:11,754 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 19:18:11,754 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 19:18:11,755 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 19:18:11,755 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 19:18:11,755 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 19:18:11,755 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 19:18:11,755 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 19:18:11,756 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 19:18:11,756 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 19:18:11,756 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 19:18:11,756 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 19:18:11,756 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 19:18:11,756 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 19:18:11,757 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 19:18:11,757 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 19:18:11,757 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 19:18:11,810 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 19:18:11,823 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 19:18:11,826 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 19:18:11,828 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 19:18:11,828 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 19:18:11,829 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label07_true-unreach-call.c [2018-11-12 19:18:11,884 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/926a58917/5e4d635c42244a06a9a984a4ce88fe2f/FLAG497648247 [2018-11-12 19:18:12,551 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 19:18:12,552 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label07_true-unreach-call.c [2018-11-12 19:18:12,574 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/926a58917/5e4d635c42244a06a9a984a4ce88fe2f/FLAG497648247 [2018-11-12 19:18:12,595 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/926a58917/5e4d635c42244a06a9a984a4ce88fe2f [2018-11-12 19:18:12,610 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 19:18:12,611 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 19:18:12,612 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 19:18:12,613 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 19:18:12,618 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 19:18:12,619 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:18:12" (1/1) ... [2018-11-12 19:18:12,622 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@131bc223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:18:12, skipping insertion in model container [2018-11-12 19:18:12,622 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:18:12" (1/1) ... [2018-11-12 19:18:12,634 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 19:18:12,736 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 19:18:13,450 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 19:18:13,455 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 19:18:13,677 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 19:18:13,698 INFO L193 MainTranslator]: Completed translation [2018-11-12 19:18:13,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:18:13 WrapperNode [2018-11-12 19:18:13,699 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 19:18:13,700 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 19:18:13,700 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 19:18:13,700 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 19:18:13,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:18:13" (1/1) ... [2018-11-12 19:18:13,877 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:18:13" (1/1) ... [2018-11-12 19:18:13,894 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 19:18:13,895 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 19:18:13,895 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 19:18:13,895 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 19:18:13,907 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:18:13" (1/1) ... [2018-11-12 19:18:13,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:18:13" (1/1) ... [2018-11-12 19:18:13,916 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:18:13" (1/1) ... [2018-11-12 19:18:13,917 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:18:13" (1/1) ... [2018-11-12 19:18:13,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:18:13" (1/1) ... [2018-11-12 19:18:13,999 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:18:13" (1/1) ... [2018-11-12 19:18:14,010 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:18:13" (1/1) ... [2018-11-12 19:18:14,019 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 19:18:14,020 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 19:18:14,020 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 19:18:14,021 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 19:18:14,022 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:18:13" (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 [2018-11-12 19:18:14,088 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-12 19:18:14,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 19:18:14,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 19:18:14,089 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-12 19:18:14,089 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-12 19:18:14,089 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-12 19:18:14,089 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-12 19:18:14,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 19:18:14,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 19:18:14,090 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 19:18:14,090 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 19:18:20,748 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 19:18:20,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:18:20 BoogieIcfgContainer [2018-11-12 19:18:20,749 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 19:18:20,750 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 19:18:20,751 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 19:18:20,756 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 19:18:20,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 07:18:12" (1/3) ... [2018-11-12 19:18:20,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e8ae48e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:18:20, skipping insertion in model container [2018-11-12 19:18:20,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:18:13" (2/3) ... [2018-11-12 19:18:20,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e8ae48e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:18:20, skipping insertion in model container [2018-11-12 19:18:20,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:18:20" (3/3) ... [2018-11-12 19:18:20,760 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label07_true-unreach-call.c [2018-11-12 19:18:20,770 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 19:18:20,780 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 19:18:20,794 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 19:18:20,834 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 19:18:20,835 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 19:18:20,835 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 19:18:20,835 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 19:18:20,835 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 19:18:20,836 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 19:18:20,836 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 19:18:20,836 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 19:18:20,869 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-11-12 19:18:20,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-11-12 19:18:20,879 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:18:20,880 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] [2018-11-12 19:18:20,883 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:18:20,889 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:18:20,889 INFO L82 PathProgramCache]: Analyzing trace with hash -1432875621, now seen corresponding path program 1 times [2018-11-12 19:18:20,891 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:18:20,944 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:18:20,945 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:18:20,945 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:18:20,945 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:18:21,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:18:21,401 WARN L179 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 19:18:21,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:18:21,552 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:18:21,552 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-12 19:18:21,552 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:18:21,559 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-12 19:18:21,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-12 19:18:21,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 19:18:21,579 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 3 states. [2018-11-12 19:18:24,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:18:24,916 INFO L93 Difference]: Finished difference Result 1156 states and 2144 transitions. [2018-11-12 19:18:24,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-12 19:18:24,918 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2018-11-12 19:18:24,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:18:24,945 INFO L225 Difference]: With dead ends: 1156 [2018-11-12 19:18:24,945 INFO L226 Difference]: Without dead ends: 744 [2018-11-12 19:18:24,956 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 19:18:24,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-11-12 19:18:25,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2018-11-12 19:18:25,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-11-12 19:18:25,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1317 transitions. [2018-11-12 19:18:25,070 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1317 transitions. Word has length 61 [2018-11-12 19:18:25,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:18:25,071 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1317 transitions. [2018-11-12 19:18:25,071 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-12 19:18:25,071 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1317 transitions. [2018-11-12 19:18:25,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-11-12 19:18:25,079 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:18:25,080 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] [2018-11-12 19:18:25,080 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:18:25,081 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:18:25,081 INFO L82 PathProgramCache]: Analyzing trace with hash -1517109448, now seen corresponding path program 1 times [2018-11-12 19:18:25,081 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:18:25,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:18:25,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:18:25,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:18:25,083 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:18:25,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:18:25,538 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:18:25,539 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:18:25,539 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 19:18:25,539 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:18:25,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 19:18:25,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 19:18:25,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-12 19:18:25,542 INFO L87 Difference]: Start difference. First operand 744 states and 1317 transitions. Second operand 6 states. [2018-11-12 19:18:33,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:18:33,960 INFO L93 Difference]: Finished difference Result 2959 states and 5503 transitions. [2018-11-12 19:18:33,960 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-12 19:18:33,960 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 137 [2018-11-12 19:18:33,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:18:33,986 INFO L225 Difference]: With dead ends: 2959 [2018-11-12 19:18:33,986 INFO L226 Difference]: Without dead ends: 2221 [2018-11-12 19:18:34,003 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-12 19:18:34,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2221 states. [2018-11-12 19:18:34,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2221 to 2175. [2018-11-12 19:18:34,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2175 states. [2018-11-12 19:18:34,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2175 states to 2175 states and 3686 transitions. [2018-11-12 19:18:34,174 INFO L78 Accepts]: Start accepts. Automaton has 2175 states and 3686 transitions. Word has length 137 [2018-11-12 19:18:34,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:18:34,175 INFO L480 AbstractCegarLoop]: Abstraction has 2175 states and 3686 transitions. [2018-11-12 19:18:34,175 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 19:18:34,175 INFO L276 IsEmpty]: Start isEmpty. Operand 2175 states and 3686 transitions. [2018-11-12 19:18:34,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-11-12 19:18:34,187 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:18:34,187 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] [2018-11-12 19:18:34,187 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:18:34,188 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:18:34,188 INFO L82 PathProgramCache]: Analyzing trace with hash -726077568, now seen corresponding path program 1 times [2018-11-12 19:18:34,188 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:18:34,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:18:34,190 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:18:34,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:18:34,190 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:18:34,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:18:34,520 WARN L179 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 19:18:34,889 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:18:34,889 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:18:34,890 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 19:18:34,890 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:18:34,891 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 19:18:34,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 19:18:34,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 19:18:34,892 INFO L87 Difference]: Start difference. First operand 2175 states and 3686 transitions. Second operand 6 states. [2018-11-12 19:18:40,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:18:40,689 INFO L93 Difference]: Finished difference Result 8068 states and 14526 transitions. [2018-11-12 19:18:40,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 19:18:40,690 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 141 [2018-11-12 19:18:40,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:18:40,734 INFO L225 Difference]: With dead ends: 8068 [2018-11-12 19:18:40,734 INFO L226 Difference]: Without dead ends: 5899 [2018-11-12 19:18:40,768 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-12 19:18:40,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5899 states. [2018-11-12 19:18:40,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5899 to 5820. [2018-11-12 19:18:40,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5820 states. [2018-11-12 19:18:40,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5820 states to 5820 states and 8984 transitions. [2018-11-12 19:18:40,951 INFO L78 Accepts]: Start accepts. Automaton has 5820 states and 8984 transitions. Word has length 141 [2018-11-12 19:18:40,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:18:40,951 INFO L480 AbstractCegarLoop]: Abstraction has 5820 states and 8984 transitions. [2018-11-12 19:18:40,952 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 19:18:40,952 INFO L276 IsEmpty]: Start isEmpty. Operand 5820 states and 8984 transitions. [2018-11-12 19:18:40,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2018-11-12 19:18:40,958 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:18:40,959 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] [2018-11-12 19:18:40,959 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:18:40,959 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:18:40,959 INFO L82 PathProgramCache]: Analyzing trace with hash 664486408, now seen corresponding path program 1 times [2018-11-12 19:18:40,960 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:18:40,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:18:40,961 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:18:40,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:18:40,961 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:18:40,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:18:41,185 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:18:41,185 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:18:41,185 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 19:18:41,185 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:18:41,186 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 19:18:41,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 19:18:41,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 19:18:41,187 INFO L87 Difference]: Start difference. First operand 5820 states and 8984 transitions. Second operand 6 states. [2018-11-12 19:18:44,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:18:44,164 INFO L93 Difference]: Finished difference Result 13535 states and 22072 transitions. [2018-11-12 19:18:44,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 19:18:44,165 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 177 [2018-11-12 19:18:44,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:18:44,207 INFO L225 Difference]: With dead ends: 13535 [2018-11-12 19:18:44,208 INFO L226 Difference]: Without dead ends: 7721 [2018-11-12 19:18:44,230 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 [2018-11-12 19:18:44,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7721 states. [2018-11-12 19:18:44,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7721 to 7645. [2018-11-12 19:18:44,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7645 states. [2018-11-12 19:18:44,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7645 states to 7645 states and 11476 transitions. [2018-11-12 19:18:44,440 INFO L78 Accepts]: Start accepts. Automaton has 7645 states and 11476 transitions. Word has length 177 [2018-11-12 19:18:44,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:18:44,441 INFO L480 AbstractCegarLoop]: Abstraction has 7645 states and 11476 transitions. [2018-11-12 19:18:44,441 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 19:18:44,441 INFO L276 IsEmpty]: Start isEmpty. Operand 7645 states and 11476 transitions. [2018-11-12 19:18:44,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2018-11-12 19:18:44,453 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:18:44,453 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:18:44,454 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:18:44,454 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:18:44,454 INFO L82 PathProgramCache]: Analyzing trace with hash -1642365103, now seen corresponding path program 1 times [2018-11-12 19:18:44,454 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:18:44,455 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:18:44,455 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:18:44,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:18:44,456 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:18:44,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:18:44,708 WARN L179 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 19:18:44,840 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 108 proven. 77 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-12 19:18:44,841 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:18:44,841 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:18:44,842 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 228 with the following transitions: [2018-11-12 19:18:44,844 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [567], [569], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [720], [721], [725], [728], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 19:18:44,906 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:18:44,906 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:18:45,544 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:18:45,546 INFO L272 AbstractInterpreter]: Visited 89 different actions 89 times. Never merged. Never widened. Performed 1312 root evaluator evaluations with a maximum evaluation depth of 4. Performed 1312 inverse root evaluator evaluations with a maximum inverse evaluation depth of 4. Never found a fixpoint. Largest state had 24 variables. [2018-11-12 19:18:45,600 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:18:45,600 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:18:46,353 INFO L227 lantSequenceWeakener]: Weakened 205 states. On average, predicates are now at 78.34% of their original sizes. [2018-11-12 19:18:46,353 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:18:47,103 INFO L415 sIntCurrentIteration]: We unified 226 AI predicates to 226 [2018-11-12 19:18:47,103 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:18:47,104 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:18:47,105 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-11-12 19:18:47,105 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:18:47,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-12 19:18:47,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-12 19:18:47,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-11-12 19:18:47,106 INFO L87 Difference]: Start difference. First operand 7645 states and 11476 transitions. Second operand 10 states. [2018-11-12 19:18:51,963 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:19:11,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:19:11,502 INFO L93 Difference]: Finished difference Result 15627 states and 23463 transitions. [2018-11-12 19:19:11,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-12 19:19:11,502 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 227 [2018-11-12 19:19:11,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:19:11,543 INFO L225 Difference]: With dead ends: 15627 [2018-11-12 19:19:11,543 INFO L226 Difference]: Without dead ends: 7988 [2018-11-12 19:19:11,580 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 230 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-11-12 19:19:11,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7988 states. [2018-11-12 19:19:11,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7988 to 7983. [2018-11-12 19:19:11,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7983 states. [2018-11-12 19:19:11,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7983 states to 7983 states and 11824 transitions. [2018-11-12 19:19:11,815 INFO L78 Accepts]: Start accepts. Automaton has 7983 states and 11824 transitions. Word has length 227 [2018-11-12 19:19:11,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:19:11,815 INFO L480 AbstractCegarLoop]: Abstraction has 7983 states and 11824 transitions. [2018-11-12 19:19:11,815 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-12 19:19:11,816 INFO L276 IsEmpty]: Start isEmpty. Operand 7983 states and 11824 transitions. [2018-11-12 19:19:11,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2018-11-12 19:19:11,825 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:19:11,826 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:19:11,826 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:19:11,826 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:19:11,827 INFO L82 PathProgramCache]: Analyzing trace with hash -1867363835, now seen corresponding path program 1 times [2018-11-12 19:19:11,827 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:19:11,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:19:11,828 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:19:11,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:19:11,828 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:19:11,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:19:12,116 WARN L179 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 19:19:12,332 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 109 proven. 14 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-11-12 19:19:12,332 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:19:12,332 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:19:12,333 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 238 with the following transitions: [2018-11-12 19:19:12,333 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [567], [569], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [728], [729], [733], [737], [741], [745], [749], [753], [757], [760], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 19:19:12,338 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:19:12,338 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:19:12,905 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:19:13,304 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:19:13,304 INFO L272 AbstractInterpreter]: Visited 100 different actions 287 times. Merged at 5 different actions 9 times. Never widened. Performed 4449 root evaluator evaluations with a maximum evaluation depth of 6. Performed 4449 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 19:19:13,345 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:19:13,345 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:19:14,104 INFO L227 lantSequenceWeakener]: Weakened 42 states. On average, predicates are now at 77.81% of their original sizes. [2018-11-12 19:19:14,104 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:19:16,603 INFO L415 sIntCurrentIteration]: We unified 236 AI predicates to 236 [2018-11-12 19:19:16,604 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:19:16,604 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:19:16,605 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [6] total 21 [2018-11-12 19:19:16,605 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:19:16,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-12 19:19:16,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-12 19:19:16,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-11-12 19:19:16,606 INFO L87 Difference]: Start difference. First operand 7983 states and 11824 transitions. Second operand 17 states. [2018-11-12 19:20:09,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:20:09,522 INFO L93 Difference]: Finished difference Result 18833 states and 28415 transitions. [2018-11-12 19:20:09,522 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-11-12 19:20:09,522 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 237 [2018-11-12 19:20:09,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:20:09,576 INFO L225 Difference]: With dead ends: 18833 [2018-11-12 19:20:09,577 INFO L226 Difference]: Without dead ends: 11194 [2018-11-12 19:20:09,622 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 244 GetRequests, 191 SyntacticMatches, 30 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2018-11-12 19:20:09,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11194 states. [2018-11-12 19:20:09,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11194 to 10737. [2018-11-12 19:20:09,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10737 states. [2018-11-12 19:20:09,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10737 states to 10737 states and 14764 transitions. [2018-11-12 19:20:09,951 INFO L78 Accepts]: Start accepts. Automaton has 10737 states and 14764 transitions. Word has length 237 [2018-11-12 19:20:09,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:20:09,952 INFO L480 AbstractCegarLoop]: Abstraction has 10737 states and 14764 transitions. [2018-11-12 19:20:09,952 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-12 19:20:09,952 INFO L276 IsEmpty]: Start isEmpty. Operand 10737 states and 14764 transitions. [2018-11-12 19:20:09,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2018-11-12 19:20:09,962 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:20:09,963 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:20:09,963 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:20:09,963 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:20:09,963 INFO L82 PathProgramCache]: Analyzing trace with hash 1714956429, now seen corresponding path program 1 times [2018-11-12 19:20:09,964 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:20:09,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:20:09,965 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:20:09,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:20:09,965 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:20:10,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:20:10,288 WARN L179 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 19:20:10,747 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 109 proven. 14 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-11-12 19:20:10,748 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:20:10,748 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:20:10,748 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 274 with the following transitions: [2018-11-12 19:20:10,749 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [567], [569], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [728], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [904], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 19:20:10,759 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:20:10,759 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:20:10,959 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:20:11,264 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:20:11,265 INFO L272 AbstractInterpreter]: Visited 136 different actions 395 times. Merged at 5 different actions 9 times. Never widened. Performed 7055 root evaluator evaluations with a maximum evaluation depth of 6. Performed 7055 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 19:20:11,271 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:20:11,271 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:20:11,775 INFO L227 lantSequenceWeakener]: Weakened 32 states. On average, predicates are now at 78.69% of their original sizes. [2018-11-12 19:20:11,775 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:20:12,171 INFO L415 sIntCurrentIteration]: We unified 272 AI predicates to 272 [2018-11-12 19:20:12,171 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:20:12,172 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:20:12,172 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [6] total 22 [2018-11-12 19:20:12,172 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:20:12,172 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-12 19:20:12,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-12 19:20:12,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2018-11-12 19:20:12,173 INFO L87 Difference]: Start difference. First operand 10737 states and 14764 transitions. Second operand 18 states. [2018-11-12 19:20:56,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:20:56,578 INFO L93 Difference]: Finished difference Result 22766 states and 32677 transitions. [2018-11-12 19:20:56,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-11-12 19:20:56,578 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 273 [2018-11-12 19:20:56,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:20:56,625 INFO L225 Difference]: With dead ends: 22766 [2018-11-12 19:20:56,625 INFO L226 Difference]: Without dead ends: 13746 [2018-11-12 19:20:56,651 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 288 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=260, Invalid=862, Unknown=0, NotChecked=0, Total=1122 [2018-11-12 19:20:56,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13746 states. [2018-11-12 19:20:56,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13746 to 12796. [2018-11-12 19:20:56,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12796 states. [2018-11-12 19:20:56,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12796 states to 12796 states and 17086 transitions. [2018-11-12 19:20:56,984 INFO L78 Accepts]: Start accepts. Automaton has 12796 states and 17086 transitions. Word has length 273 [2018-11-12 19:20:56,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:20:56,984 INFO L480 AbstractCegarLoop]: Abstraction has 12796 states and 17086 transitions. [2018-11-12 19:20:56,985 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-12 19:20:56,985 INFO L276 IsEmpty]: Start isEmpty. Operand 12796 states and 17086 transitions. [2018-11-12 19:20:57,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2018-11-12 19:20:57,024 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:20:57,024 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, 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] [2018-11-12 19:20:57,025 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:20:57,025 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:20:57,025 INFO L82 PathProgramCache]: Analyzing trace with hash 1413290166, now seen corresponding path program 1 times [2018-11-12 19:20:57,025 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:20:57,027 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:20:57,027 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:20:57,027 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:20:57,027 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:20:57,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:20:57,889 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 247 proven. 81 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-11-12 19:20:57,889 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:20:57,889 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:20:57,890 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 468 with the following transitions: [2018-11-12 19:20:57,891 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [567], [569], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [720], [721], [725], [728], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 19:20:57,904 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:20:57,904 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:20:58,487 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:20:58,487 INFO L272 AbstractInterpreter]: Visited 249 different actions 494 times. Merged at 5 different actions 7 times. Never widened. Performed 8201 root evaluator evaluations with a maximum evaluation depth of 6. Performed 8201 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 19:20:58,497 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:20:58,497 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:20:58,978 INFO L227 lantSequenceWeakener]: Weakened 237 states. On average, predicates are now at 78.35% of their original sizes. [2018-11-12 19:20:58,978 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:20:59,979 INFO L415 sIntCurrentIteration]: We unified 466 AI predicates to 466 [2018-11-12 19:20:59,979 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:20:59,979 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:20:59,980 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [6] total 22 [2018-11-12 19:20:59,980 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:20:59,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-12 19:20:59,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-12 19:20:59,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2018-11-12 19:20:59,981 INFO L87 Difference]: Start difference. First operand 12796 states and 17086 transitions. Second operand 18 states. [2018-11-12 19:21:02,903 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:21:31,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:21:31,835 INFO L93 Difference]: Finished difference Result 23899 states and 32680 transitions. [2018-11-12 19:21:31,835 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-11-12 19:21:31,835 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 467 [2018-11-12 19:21:31,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:21:31,881 INFO L225 Difference]: With dead ends: 23899 [2018-11-12 19:21:31,882 INFO L226 Difference]: Without dead ends: 13432 [2018-11-12 19:21:31,910 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 482 GetRequests, 401 SyntacticMatches, 49 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 696 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=213, Invalid=909, Unknown=0, NotChecked=0, Total=1122 [2018-11-12 19:21:31,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13432 states. [2018-11-12 19:21:32,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13432 to 13427. [2018-11-12 19:21:32,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13427 states. [2018-11-12 19:21:32,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13427 states to 13427 states and 17755 transitions. [2018-11-12 19:21:32,221 INFO L78 Accepts]: Start accepts. Automaton has 13427 states and 17755 transitions. Word has length 467 [2018-11-12 19:21:32,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:21:32,222 INFO L480 AbstractCegarLoop]: Abstraction has 13427 states and 17755 transitions. [2018-11-12 19:21:32,222 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-12 19:21:32,222 INFO L276 IsEmpty]: Start isEmpty. Operand 13427 states and 17755 transitions. [2018-11-12 19:21:32,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2018-11-12 19:21:32,264 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:21:32,264 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, 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] [2018-11-12 19:21:32,265 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:21:32,265 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:21:32,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1579094714, now seen corresponding path program 1 times [2018-11-12 19:21:32,265 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:21:32,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:21:32,266 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:21:32,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:21:32,267 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:21:32,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:21:32,734 WARN L179 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 19:21:33,324 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 168 proven. 228 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-11-12 19:21:33,324 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:21:33,324 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:21:33,325 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 476 with the following transitions: [2018-11-12 19:21:33,325 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [567], [569], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [720], [721], [725], [728], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 19:21:33,330 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:21:33,330 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:21:36,016 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:21:36,016 INFO L272 AbstractInterpreter]: Visited 257 different actions 2265 times. Merged at 5 different actions 40 times. Widened at 1 different actions 4 times. Performed 40046 root evaluator evaluations with a maximum evaluation depth of 6. Performed 40046 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 19:21:36,024 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:21:36,024 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:21:36,554 INFO L227 lantSequenceWeakener]: Weakened 313 states. On average, predicates are now at 78.07% of their original sizes. [2018-11-12 19:21:36,554 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:21:36,814 INFO L415 sIntCurrentIteration]: We unified 474 AI predicates to 474 [2018-11-12 19:21:36,815 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:21:36,815 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:21:36,815 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [6] total 24 [2018-11-12 19:21:36,815 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:21:36,816 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-12 19:21:36,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-12 19:21:36,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2018-11-12 19:21:36,817 INFO L87 Difference]: Start difference. First operand 13427 states and 17755 transitions. Second operand 20 states. [2018-11-12 19:21:39,299 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-12 19:21:53,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-11-12 19:21:53,029 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-12 19:21:53,035 WARN L205 ceAbstractionStarter]: Timeout [2018-11-12 19:21:53,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 07:21:53 BoogieIcfgContainer [2018-11-12 19:21:53,035 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-12 19:21:53,036 INFO L168 Benchmark]: Toolchain (without parser) took 220426.07 ms. Allocated memory was 1.5 GB in the beginning and 5.1 GB in the end (delta: 3.5 GB). Free memory was 1.4 GB in the beginning and 2.7 GB in the end (delta: -1.3 GB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2018-11-12 19:21:53,038 INFO L168 Benchmark]: CDTParser took 0.19 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. [2018-11-12 19:21:53,038 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1086.85 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. [2018-11-12 19:21:53,039 INFO L168 Benchmark]: Boogie Procedure Inliner took 194.76 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 765.5 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -893.4 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. [2018-11-12 19:21:53,040 INFO L168 Benchmark]: Boogie Preprocessor took 125.09 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-12 19:21:53,040 INFO L168 Benchmark]: RCFGBuilder took 6729.43 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 264.2 MB). Peak memory consumption was 264.2 MB. Max. memory is 7.1 GB. [2018-11-12 19:21:53,041 INFO L168 Benchmark]: TraceAbstraction took 212285.14 ms. Allocated memory was 2.3 GB in the beginning and 5.1 GB in the end (delta: 2.8 GB). Free memory was 2.0 GB in the beginning and 2.7 GB in the end (delta: -720.4 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-11-12 19:21:53,046 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 1086.85 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 194.76 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 765.5 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -893.4 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 125.09 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 6729.43 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 264.2 MB). Peak memory consumption was 264.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 212285.14 ms. Allocated memory was 2.3 GB in the beginning and 5.1 GB in the end (delta: 2.8 GB). Free memory was 2.0 GB in the beginning and 2.7 GB in the end (delta: -720.4 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 169]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 169). Cancelled while BasicCegarLoop was constructing difference of abstraction (13427states) and FLOYD_HOARE automaton (currently 27 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (5759 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 212.2s OverallTime, 9 OverallIterations, 4 TraceHistogramMax, 190.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2193 SDtfs, 25596 SDslu, 1644 SDs, 0 SdLazy, 31443 SolverSat, 4812 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 73.4s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 1766 GetRequests, 1531 SyntacticMatches, 83 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1490 ImplicationChecksByTransitivity, 7.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13427occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 5.6s AbstIntTime, 5 AbstIntIterations, 5 AbstIntStrong, 0.9975895163482827 AbsIntWeakeningRatio, 0.08482676224611709 AbsIntAvgWeakeningVarsNumRemoved, 11.028673835125447 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.8s AutomataMinimizationTime, 8 MinimizatonAttempts, 1618 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 2195 NumberOfCodeBlocks, 2195 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 2186 ConstructedInterpolants, 0 QuantifiedInterpolants, 2010176 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 1142/1556 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown