java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label00_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 21:26:54,704 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 21:26:54,708 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 21:26:54,727 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 21:26:54,728 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 21:26:54,730 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 21:26:54,731 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 21:26:54,733 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 21:26:54,737 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 21:26:54,738 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 21:26:54,740 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 21:26:54,741 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 21:26:54,742 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 21:26:54,745 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 21:26:54,746 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 21:26:54,747 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 21:26:54,748 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 21:26:54,750 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 21:26:54,751 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 21:26:54,753 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 21:26:54,754 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 21:26:54,755 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 21:26:54,757 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 21:26:54,757 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 21:26:54,758 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 21:26:54,758 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 21:26:54,759 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 21:26:54,760 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 21:26:54,761 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 21:26:54,762 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 21:26:54,762 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 21:26:54,763 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-24 21:26:54,767 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 21:26:54,798 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 21:26:54,798 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 21:26:54,800 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 21:26:54,800 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 21:26:54,801 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 21:26:54,801 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 21:26:54,801 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 21:26:54,801 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 21:26:54,802 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 21:26:54,802 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 21:26:54,802 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 21:26:54,802 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 21:26:54,803 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 21:26:54,803 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 21:26:54,803 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 21:26:54,803 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 21:26:54,803 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 21:26:54,805 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 21:26:54,805 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 21:26:54,805 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 21:26:54,805 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 21:26:54,805 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 21:26:54,806 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 21:26:54,806 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 21:26:54,806 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 21:26:54,806 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 21:26:54,806 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 21:26:54,807 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 21:26:54,807 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 21:26:54,807 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 21:26:54,807 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 21:26:54,808 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 21:26:54,808 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 21:26:54,808 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 21:26:54,859 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 21:26:54,875 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 21:26:54,880 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 21:26:54,882 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 21:26:54,882 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 21:26:54,883 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label00_true-unreach-call.c [2018-10-24 21:26:54,954 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/eec8ab165/51876ec33f4c4722b5890b99cd2206eb/FLAG8ae1d893e [2018-10-24 21:26:55,796 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 21:26:55,797 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label00_true-unreach-call.c [2018-10-24 21:26:55,828 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/eec8ab165/51876ec33f4c4722b5890b99cd2206eb/FLAG8ae1d893e [2018-10-24 21:26:55,846 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/eec8ab165/51876ec33f4c4722b5890b99cd2206eb [2018-10-24 21:26:55,858 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 21:26:55,861 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 21:26:55,862 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 21:26:55,863 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 21:26:55,869 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 21:26:55,871 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:26:55" (1/1) ... [2018-10-24 21:26:55,874 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31cb433d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:26:55, skipping insertion in model container [2018-10-24 21:26:55,875 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:26:55" (1/1) ... [2018-10-24 21:26:55,887 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 21:26:56,078 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 21:26:57,486 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:26:57,491 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 21:26:58,358 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:26:58,399 INFO L193 MainTranslator]: Completed translation [2018-10-24 21:26:58,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:26:58 WrapperNode [2018-10-24 21:26:58,400 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 21:26:58,401 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 21:26:58,401 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 21:26:58,401 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 21:26:58,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:26:58" (1/1) ... [2018-10-24 21:26:58,484 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:26:58" (1/1) ... [2018-10-24 21:26:59,009 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 21:26:59,009 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 21:26:59,009 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 21:26:59,010 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 21:26:59,020 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:26:58" (1/1) ... [2018-10-24 21:26:59,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:26:58" (1/1) ... [2018-10-24 21:26:59,057 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:26:58" (1/1) ... [2018-10-24 21:26:59,058 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:26:58" (1/1) ... [2018-10-24 21:26:59,191 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:26:58" (1/1) ... [2018-10-24 21:26:59,226 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:26:58" (1/1) ... [2018-10-24 21:26:59,269 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:26:58" (1/1) ... [2018-10-24 21:26:59,309 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 21:26:59,310 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 21:26:59,310 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 21:26:59,310 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 21:26:59,311 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:26:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 21:26:59,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 21:26:59,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 21:26:59,379 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-24 21:26:59,379 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-24 21:26:59,379 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-24 21:26:59,380 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-24 21:26:59,380 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 21:26:59,380 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 21:26:59,380 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 21:26:59,380 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 21:26:59,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 21:26:59,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 21:26:59,381 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 21:26:59,382 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 21:27:10,744 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 21:27:10,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:27:10 BoogieIcfgContainer [2018-10-24 21:27:10,749 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 21:27:10,750 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 21:27:10,751 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 21:27:10,754 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 21:27:10,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:26:55" (1/3) ... [2018-10-24 21:27:10,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a1650ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:27:10, skipping insertion in model container [2018-10-24 21:27:10,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:26:58" (2/3) ... [2018-10-24 21:27:10,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a1650ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:27:10, skipping insertion in model container [2018-10-24 21:27:10,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:27:10" (3/3) ... [2018-10-24 21:27:10,759 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label00_true-unreach-call.c [2018-10-24 21:27:10,769 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 21:27:10,791 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 21:27:10,810 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 21:27:10,867 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 21:27:10,867 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 21:27:10,867 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 21:27:10,868 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 21:27:10,868 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 21:27:10,868 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 21:27:10,868 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 21:27:10,868 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 21:27:10,913 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-10-24 21:27:10,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-10-24 21:27:10,922 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:27:10,923 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] [2018-10-24 21:27:10,926 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:27:10,932 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:27:10,933 INFO L82 PathProgramCache]: Analyzing trace with hash -920036068, now seen corresponding path program 1 times [2018-10-24 21:27:10,936 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:27:10,995 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:27:10,996 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:27:10,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:27:10,996 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:27:11,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:27:11,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:27:11,418 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:27:11,418 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 21:27:11,419 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:27:11,426 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 21:27:11,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 21:27:11,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:27:11,451 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 4 states. [2018-10-24 21:27:26,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:27:26,949 INFO L93 Difference]: Finished difference Result 3968 states and 7392 transitions. [2018-10-24 21:27:26,957 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 21:27:26,959 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2018-10-24 21:27:26,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:27:27,004 INFO L225 Difference]: With dead ends: 3968 [2018-10-24 21:27:27,004 INFO L226 Difference]: Without dead ends: 2842 [2018-10-24 21:27:27,016 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:27:27,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2842 states. [2018-10-24 21:27:27,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2842 to 1981. [2018-10-24 21:27:27,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1981 states. [2018-10-24 21:27:27,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1981 states to 1981 states and 3456 transitions. [2018-10-24 21:27:27,207 INFO L78 Accepts]: Start accepts. Automaton has 1981 states and 3456 transitions. Word has length 44 [2018-10-24 21:27:27,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:27:27,207 INFO L481 AbstractCegarLoop]: Abstraction has 1981 states and 3456 transitions. [2018-10-24 21:27:27,208 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 21:27:27,208 INFO L276 IsEmpty]: Start isEmpty. Operand 1981 states and 3456 transitions. [2018-10-24 21:27:27,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-10-24 21:27:27,220 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:27:27,221 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:27:27,223 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:27:27,223 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:27:27,223 INFO L82 PathProgramCache]: Analyzing trace with hash 673844312, now seen corresponding path program 1 times [2018-10-24 21:27:27,225 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:27:27,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:27:27,227 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:27:27,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:27:27,227 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:27:27,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:27:27,590 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:27:27,592 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:27:27,592 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 21:27:27,592 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:27:27,594 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 21:27:27,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 21:27:27,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 21:27:27,595 INFO L87 Difference]: Start difference. First operand 1981 states and 3456 transitions. Second operand 5 states. [2018-10-24 21:27:44,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:27:44,138 INFO L93 Difference]: Finished difference Result 5673 states and 10081 transitions. [2018-10-24 21:27:44,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:27:44,141 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 114 [2018-10-24 21:27:44,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:27:44,166 INFO L225 Difference]: With dead ends: 5673 [2018-10-24 21:27:44,167 INFO L226 Difference]: Without dead ends: 3698 [2018-10-24 21:27:44,175 INFO L605 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 [2018-10-24 21:27:44,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3698 states. [2018-10-24 21:27:44,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3698 to 3687. [2018-10-24 21:27:44,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3687 states. [2018-10-24 21:27:44,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3687 states to 3687 states and 5870 transitions. [2018-10-24 21:27:44,276 INFO L78 Accepts]: Start accepts. Automaton has 3687 states and 5870 transitions. Word has length 114 [2018-10-24 21:27:44,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:27:44,276 INFO L481 AbstractCegarLoop]: Abstraction has 3687 states and 5870 transitions. [2018-10-24 21:27:44,277 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 21:27:44,277 INFO L276 IsEmpty]: Start isEmpty. Operand 3687 states and 5870 transitions. [2018-10-24 21:27:44,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-10-24 21:27:44,281 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:27:44,281 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:27:44,281 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:27:44,282 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:27:44,282 INFO L82 PathProgramCache]: Analyzing trace with hash -1072616972, now seen corresponding path program 1 times [2018-10-24 21:27:44,282 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:27:44,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:27:44,283 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:27:44,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:27:44,283 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:27:44,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:27:44,482 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:27:44,483 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:27:44,483 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 21:27:44,483 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:27:44,484 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 21:27:44,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 21:27:44,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 21:27:44,484 INFO L87 Difference]: Start difference. First operand 3687 states and 5870 transitions. Second operand 5 states. [2018-10-24 21:28:00,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:28:00,221 INFO L93 Difference]: Finished difference Result 10963 states and 17865 transitions. [2018-10-24 21:28:00,225 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 21:28:00,225 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 116 [2018-10-24 21:28:00,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:28:00,270 INFO L225 Difference]: With dead ends: 10963 [2018-10-24 21:28:00,271 INFO L226 Difference]: Without dead ends: 7282 [2018-10-24 21:28:00,284 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 21:28:00,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7282 states. [2018-10-24 21:28:00,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7282 to 7175. [2018-10-24 21:28:00,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7175 states. [2018-10-24 21:28:00,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7175 states to 7175 states and 10520 transitions. [2018-10-24 21:28:00,467 INFO L78 Accepts]: Start accepts. Automaton has 7175 states and 10520 transitions. Word has length 116 [2018-10-24 21:28:00,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:28:00,467 INFO L481 AbstractCegarLoop]: Abstraction has 7175 states and 10520 transitions. [2018-10-24 21:28:00,467 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 21:28:00,468 INFO L276 IsEmpty]: Start isEmpty. Operand 7175 states and 10520 transitions. [2018-10-24 21:28:00,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2018-10-24 21:28:00,472 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:28:00,472 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:28:00,472 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:28:00,473 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:28:00,473 INFO L82 PathProgramCache]: Analyzing trace with hash -2080422020, now seen corresponding path program 1 times [2018-10-24 21:28:00,473 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:28:00,474 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:28:00,474 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:28:00,474 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:28:00,474 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:28:00,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:28:00,838 WARN L179 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 10 [2018-10-24 21:28:01,023 WARN L179 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-10-24 21:28:01,259 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:28:01,259 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:28:01,259 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 21:28:01,260 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:28:01,260 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 21:28:01,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 21:28:01,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-10-24 21:28:01,261 INFO L87 Difference]: Start difference. First operand 7175 states and 10520 transitions. Second operand 6 states. [2018-10-24 21:28:01,532 WARN L179 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 21:28:32,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:28:32,801 INFO L93 Difference]: Finished difference Result 18116 states and 26150 transitions. [2018-10-24 21:28:32,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-24 21:28:32,802 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 160 [2018-10-24 21:28:32,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:28:32,862 INFO L225 Difference]: With dead ends: 18116 [2018-10-24 21:28:32,862 INFO L226 Difference]: Without dead ends: 10947 [2018-10-24 21:28:32,900 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-10-24 21:28:32,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10947 states. [2018-10-24 21:28:33,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10947 to 10597. [2018-10-24 21:28:33,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10597 states. [2018-10-24 21:28:33,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10597 states to 10597 states and 14744 transitions. [2018-10-24 21:28:33,183 INFO L78 Accepts]: Start accepts. Automaton has 10597 states and 14744 transitions. Word has length 160 [2018-10-24 21:28:33,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:28:33,184 INFO L481 AbstractCegarLoop]: Abstraction has 10597 states and 14744 transitions. [2018-10-24 21:28:33,184 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 21:28:33,184 INFO L276 IsEmpty]: Start isEmpty. Operand 10597 states and 14744 transitions. [2018-10-24 21:28:33,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-10-24 21:28:33,188 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:28:33,189 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:28:33,189 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:28:33,189 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:28:33,189 INFO L82 PathProgramCache]: Analyzing trace with hash 2003986425, now seen corresponding path program 1 times [2018-10-24 21:28:33,190 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:28:33,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:28:33,191 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:28:33,191 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:28:33,191 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:28:33,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:28:33,815 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 4 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:28:33,816 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:28:33,816 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:28:33,817 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 175 with the following transitions: [2018-10-24 21:28:33,820 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2879], [2881], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3321], [3325], [3329], [3333], [3344], [3355], [3366], [3370], [3374], [3378], [3382], [3386], [3390], [3394], [3398], [3402], [3406], [3409], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-10-24 21:28:33,897 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:28:33,898 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:28:49,382 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 21:28:58,055 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:28:58,057 INFO L272 AbstractInterpreter]: Visited 137 different actions 398 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-10-24 21:28:58,068 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:28:58,068 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:29:02,351 INFO L232 lantSequenceWeakener]: Weakened 35 states. On average, predicates are now at 75.44% of their original sizes. [2018-10-24 21:29:02,353 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 21:30:15,673 INFO L413 sIntCurrentIteration]: We have 173 unified AI predicates [2018-10-24 21:30:15,674 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 21:30:15,675 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 21:30:15,675 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [7] total 21 [2018-10-24 21:30:15,675 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:30:15,676 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-24 21:30:15,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-24 21:30:15,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2018-10-24 21:30:15,676 INFO L87 Difference]: Start difference. First operand 10597 states and 14744 transitions. Second operand 16 states. Received shutdown request... [2018-10-24 21:30:57,010 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-24 21:30:57,010 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 21:30:57,015 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 21:30:57,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:30:57 BoogieIcfgContainer [2018-10-24 21:30:57,016 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 21:30:57,017 INFO L168 Benchmark]: Toolchain (without parser) took 241157.81 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.7 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-10-24 21:30:57,018 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 21:30:57,018 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2538.14 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-10-24 21:30:57,019 INFO L168 Benchmark]: Boogie Procedure Inliner took 608.08 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 824.7 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. [2018-10-24 21:30:57,020 INFO L168 Benchmark]: Boogie Preprocessor took 300.35 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 37.8 MB). Peak memory consumption was 37.8 MB. Max. memory is 7.1 GB. [2018-10-24 21:30:57,021 INFO L168 Benchmark]: RCFGBuilder took 11439.51 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 186.1 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.8 MB). Peak memory consumption was 671.6 MB. Max. memory is 7.1 GB. [2018-10-24 21:30:57,022 INFO L168 Benchmark]: TraceAbstraction took 226265.64 ms. Allocated memory was 2.5 GB in the beginning and 4.2 GB in the end (delta: 1.7 GB). Free memory was 2.2 GB in the beginning and 2.7 GB in the end (delta: -469.0 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-10-24 21:30:57,030 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 2538.14 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 608.08 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 824.7 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 300.35 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 37.8 MB). Peak memory consumption was 37.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11439.51 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 186.1 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.8 MB). Peak memory consumption was 671.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 226265.64 ms. Allocated memory was 2.5 GB in the beginning and 4.2 GB in the end (delta: 1.7 GB). Free memory was 2.2 GB in the beginning and 2.7 GB in the end (delta: -469.0 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 123]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 123). Cancelled while BasicCegarLoop was constructing difference of abstraction (10597states) and FLOYD_HOARE automaton (currently 10 states, 16 states before enhancement),while ReachableStatesComputation was computing reachable states (317 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 226.1s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 120.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1661 SDtfs, 12978 SDslu, 2314 SDs, 0 SdLazy, 25461 SolverSat, 4443 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 83.8s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 213 GetRequests, 92 SyntacticMatches, 80 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 75.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10597occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 24.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9948510449088482 AbsIntWeakeningRatio, 0.12138728323699421 AbsIntAvgWeakeningVarsNumRemoved, 98.77456647398844 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 4 MinimizatonAttempts, 1329 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 608 NumberOfCodeBlocks, 608 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 603 ConstructedInterpolants, 0 QuantifiedInterpolants, 384964 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 115/148 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown