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.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label25_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 00:46:24,858 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 00:46:24,862 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 00:46:24,879 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 00:46:24,879 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 00:46:24,881 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 00:46:24,883 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 00:46:24,885 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 00:46:24,887 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 00:46:24,889 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 00:46:24,890 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 00:46:24,890 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 00:46:24,893 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 00:46:24,894 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 00:46:24,895 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 00:46:24,898 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 00:46:24,900 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 00:46:24,908 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 00:46:24,910 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 00:46:24,912 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 00:46:24,913 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 00:46:24,916 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 00:46:24,920 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 00:46:24,920 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 00:46:24,921 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 00:46:24,922 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 00:46:24,923 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 00:46:24,925 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 00:46:24,926 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 00:46:24,927 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 00:46:24,927 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 00:46:24,927 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 00:46:24,929 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 00:46:24,929 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 00:46:24,930 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 00:46:24,930 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 00:46:24,931 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-07 00:46:24,956 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 00:46:24,956 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 00:46:24,957 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 00:46:24,957 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 00:46:24,957 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 00:46:24,958 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 00:46:24,958 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 00:46:24,958 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 00:46:24,958 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 00:46:24,958 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 00:46:24,959 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 00:46:24,959 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 00:46:24,960 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 00:46:24,960 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 00:46:24,960 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 00:46:24,960 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 00:46:24,960 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 00:46:24,960 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 00:46:24,961 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 00:46:24,961 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 00:46:24,961 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 00:46:24,961 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 00:46:24,961 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 00:46:24,962 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 00:46:24,962 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 00:46:24,962 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 00:46:24,962 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 00:46:24,962 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 00:46:24,962 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 00:46:24,963 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 00:46:24,963 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 00:46:24,963 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 00:46:24,963 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 00:46:24,963 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 00:46:25,006 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 00:46:25,018 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 00:46:25,022 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 00:46:25,024 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 00:46:25,024 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 00:46:25,025 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label25_false-unreach-call.c [2018-11-07 00:46:25,084 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac2fbe510/bde0c645da7e424fbc41905eef768edc/FLAGce509a4f4 [2018-11-07 00:46:25,771 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 00:46:25,772 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label25_false-unreach-call.c [2018-11-07 00:46:25,796 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac2fbe510/bde0c645da7e424fbc41905eef768edc/FLAGce509a4f4 [2018-11-07 00:46:25,811 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac2fbe510/bde0c645da7e424fbc41905eef768edc [2018-11-07 00:46:25,822 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 00:46:25,824 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 00:46:25,825 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 00:46:25,825 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 00:46:25,829 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 00:46:25,830 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:46:25" (1/1) ... [2018-11-07 00:46:25,833 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@710be24e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:46:25, skipping insertion in model container [2018-11-07 00:46:25,833 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:46:25" (1/1) ... [2018-11-07 00:46:25,844 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 00:46:25,973 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 00:46:27,000 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 00:46:27,004 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 00:46:27,455 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 00:46:27,485 INFO L193 MainTranslator]: Completed translation [2018-11-07 00:46:27,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:46:27 WrapperNode [2018-11-07 00:46:27,486 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 00:46:27,487 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 00:46:27,487 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 00:46:27,487 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 00:46:27,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:46:27" (1/1) ... [2018-11-07 00:46:27,782 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:46:27" (1/1) ... [2018-11-07 00:46:27,793 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 00:46:27,793 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 00:46:27,794 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 00:46:27,794 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 00:46:27,806 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:46:27" (1/1) ... [2018-11-07 00:46:27,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:46:27" (1/1) ... [2018-11-07 00:46:27,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:46:27" (1/1) ... [2018-11-07 00:46:27,821 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:46:27" (1/1) ... [2018-11-07 00:46:27,926 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:46:27" (1/1) ... [2018-11-07 00:46:27,970 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:46:27" (1/1) ... [2018-11-07 00:46:27,991 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:46:27" (1/1) ... [2018-11-07 00:46:28,010 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 00:46:28,010 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 00:46:28,011 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 00:46:28,011 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 00:46:28,012 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:46:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 00:46:28,084 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 00:46:28,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 00:46:28,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 00:46:28,085 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 00:46:28,085 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 00:46:28,085 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 00:46:28,085 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 00:46:28,085 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 00:46:28,086 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 00:46:28,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 00:46:28,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 00:46:28,086 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 00:46:28,086 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 00:46:35,611 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 00:46:35,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:46:35 BoogieIcfgContainer [2018-11-07 00:46:35,612 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 00:46:35,614 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 00:46:35,614 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 00:46:35,617 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 00:46:35,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:46:25" (1/3) ... [2018-11-07 00:46:35,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d6c76f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:46:35, skipping insertion in model container [2018-11-07 00:46:35,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:46:27" (2/3) ... [2018-11-07 00:46:35,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d6c76f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:46:35, skipping insertion in model container [2018-11-07 00:46:35,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:46:35" (3/3) ... [2018-11-07 00:46:35,621 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label25_false-unreach-call.c [2018-11-07 00:46:35,631 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 00:46:35,641 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 00:46:35,659 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 00:46:35,705 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 00:46:35,705 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 00:46:35,705 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 00:46:35,706 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 00:46:35,706 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 00:46:35,706 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 00:46:35,706 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 00:46:35,706 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 00:46:35,747 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-11-07 00:46:35,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-07 00:46:35,754 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:46:35,756 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] [2018-11-07 00:46:35,758 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:46:35,764 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:46:35,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1649769497, now seen corresponding path program 1 times [2018-11-07 00:46:35,767 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:46:35,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:46:35,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:46:35,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:46:35,826 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:46:35,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:46:36,207 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-11-07 00:46:36,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:46:36,221 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:46:36,221 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 00:46:36,222 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:46:36,228 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 00:46:36,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 00:46:36,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 00:46:36,250 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 4 states. [2018-11-07 00:46:46,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:46:46,654 INFO L93 Difference]: Finished difference Result 2974 states and 5747 transitions. [2018-11-07 00:46:46,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 00:46:46,656 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2018-11-07 00:46:46,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:46:46,694 INFO L225 Difference]: With dead ends: 2974 [2018-11-07 00:46:46,694 INFO L226 Difference]: Without dead ends: 2193 [2018-11-07 00:46:46,707 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 00:46:46,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2193 states. [2018-11-07 00:46:46,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2193 to 1474. [2018-11-07 00:46:46,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-11-07 00:46:46,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2384 transitions. [2018-11-07 00:46:46,871 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2384 transitions. Word has length 31 [2018-11-07 00:46:46,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:46:46,872 INFO L480 AbstractCegarLoop]: Abstraction has 1474 states and 2384 transitions. [2018-11-07 00:46:46,872 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 00:46:46,872 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2384 transitions. [2018-11-07 00:46:46,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-11-07 00:46:46,881 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:46:46,882 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:46:46,882 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:46:46,883 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:46:46,883 INFO L82 PathProgramCache]: Analyzing trace with hash -1025384456, now seen corresponding path program 1 times [2018-11-07 00:46:46,883 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:46:46,884 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:46:46,884 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:46:46,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:46:46,885 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:46:46,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:46:47,212 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 00:46:47,262 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:46:47,263 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:46:47,263 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 00:46:47,263 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:46:47,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 00:46:47,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 00:46:47,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 00:46:47,266 INFO L87 Difference]: Start difference. First operand 1474 states and 2384 transitions. Second operand 5 states. [2018-11-07 00:46:56,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:46:56,135 INFO L93 Difference]: Finished difference Result 4422 states and 7235 transitions. [2018-11-07 00:46:56,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 00:46:56,139 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 101 [2018-11-07 00:46:56,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:46:56,161 INFO L225 Difference]: With dead ends: 4422 [2018-11-07 00:46:56,162 INFO L226 Difference]: Without dead ends: 2954 [2018-11-07 00:46:56,168 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 00:46:56,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2954 states. [2018-11-07 00:46:56,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2954 to 2930. [2018-11-07 00:46:56,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2930 states. [2018-11-07 00:46:56,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2930 states to 2930 states and 4516 transitions. [2018-11-07 00:46:56,273 INFO L78 Accepts]: Start accepts. Automaton has 2930 states and 4516 transitions. Word has length 101 [2018-11-07 00:46:56,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:46:56,274 INFO L480 AbstractCegarLoop]: Abstraction has 2930 states and 4516 transitions. [2018-11-07 00:46:56,274 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 00:46:56,274 INFO L276 IsEmpty]: Start isEmpty. Operand 2930 states and 4516 transitions. [2018-11-07 00:46:56,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-11-07 00:46:56,277 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:46:56,277 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:46:56,278 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:46:56,278 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:46:56,278 INFO L82 PathProgramCache]: Analyzing trace with hash 575354176, now seen corresponding path program 1 times [2018-11-07 00:46:56,278 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:46:56,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:46:56,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:46:56,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:46:56,280 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:46:56,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:46:56,474 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:46:56,474 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:46:56,474 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 00:46:56,475 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:46:56,475 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 00:46:56,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 00:46:56,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 00:46:56,476 INFO L87 Difference]: Start difference. First operand 2930 states and 4516 transitions. Second operand 6 states. [2018-11-07 00:47:04,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:47:04,244 INFO L93 Difference]: Finished difference Result 10279 states and 16084 transitions. [2018-11-07 00:47:04,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 00:47:04,253 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 105 [2018-11-07 00:47:04,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:47:04,296 INFO L225 Difference]: With dead ends: 10279 [2018-11-07 00:47:04,297 INFO L226 Difference]: Without dead ends: 7355 [2018-11-07 00:47:04,313 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 00:47:04,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7355 states. [2018-11-07 00:47:04,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7355 to 7296. [2018-11-07 00:47:04,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7296 states. [2018-11-07 00:47:04,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7296 states to 7296 states and 10495 transitions. [2018-11-07 00:47:04,484 INFO L78 Accepts]: Start accepts. Automaton has 7296 states and 10495 transitions. Word has length 105 [2018-11-07 00:47:04,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:47:04,484 INFO L480 AbstractCegarLoop]: Abstraction has 7296 states and 10495 transitions. [2018-11-07 00:47:04,485 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 00:47:04,485 INFO L276 IsEmpty]: Start isEmpty. Operand 7296 states and 10495 transitions. [2018-11-07 00:47:04,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-11-07 00:47:04,487 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:47:04,487 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:47:04,487 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:47:04,488 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:47:04,488 INFO L82 PathProgramCache]: Analyzing trace with hash 1276627405, now seen corresponding path program 1 times [2018-11-07 00:47:04,488 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:47:04,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:47:04,489 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:47:04,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:47:04,489 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:47:04,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:47:04,791 WARN L179 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 00:47:05,093 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:47:05,094 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:47:05,094 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 00:47:05,094 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:47:05,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 00:47:05,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 00:47:05,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 00:47:05,096 INFO L87 Difference]: Start difference. First operand 7296 states and 10495 transitions. Second operand 6 states. [2018-11-07 00:47:12,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:47:12,580 INFO L93 Difference]: Finished difference Result 18993 states and 28013 transitions. [2018-11-07 00:47:12,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 00:47:12,583 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 126 [2018-11-07 00:47:12,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:47:12,633 INFO L225 Difference]: With dead ends: 18993 [2018-11-07 00:47:12,633 INFO L226 Difference]: Without dead ends: 11703 [2018-11-07 00:47:12,665 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 00:47:12,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11703 states. [2018-11-07 00:47:12,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11703 to 11639. [2018-11-07 00:47:12,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11639 states. [2018-11-07 00:47:12,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11639 states to 11639 states and 16002 transitions. [2018-11-07 00:47:12,900 INFO L78 Accepts]: Start accepts. Automaton has 11639 states and 16002 transitions. Word has length 126 [2018-11-07 00:47:12,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:47:12,900 INFO L480 AbstractCegarLoop]: Abstraction has 11639 states and 16002 transitions. [2018-11-07 00:47:12,900 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 00:47:12,901 INFO L276 IsEmpty]: Start isEmpty. Operand 11639 states and 16002 transitions. [2018-11-07 00:47:12,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2018-11-07 00:47:12,906 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:47:12,907 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 00:47:12,907 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:47:12,907 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:47:12,907 INFO L82 PathProgramCache]: Analyzing trace with hash -1484086754, now seen corresponding path program 1 times [2018-11-07 00:47:12,907 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:47:12,908 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:47:12,908 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:47:12,908 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:47:12,909 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:47:12,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:47:13,337 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 136 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:47:13,337 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:47:13,337 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 00:47:13,338 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 229 with the following transitions: [2018-11-07 00:47:13,341 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1771], [1773], [1776], [1784], [1792], [1800], [1808], [1816], [1824], [1832], [1840], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2196], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2264], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-11-07 00:47:13,412 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 00:47:13,412 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 00:47:16,113 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 00:47:16,115 INFO L272 AbstractInterpreter]: Visited 112 different actions 112 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 00:47:16,124 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:47:16,124 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 00:47:17,973 INFO L227 lantSequenceWeakener]: Weakened 220 states. On average, predicates are now at 77.63% of their original sizes. [2018-11-07 00:47:17,973 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 00:47:18,242 INFO L415 sIntCurrentIteration]: We unified 227 AI predicates to 227 [2018-11-07 00:47:18,243 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 00:47:18,244 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 00:47:18,244 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-11-07 00:47:18,244 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:47:18,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-07 00:47:18,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-07 00:47:18,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-07 00:47:18,245 INFO L87 Difference]: Start difference. First operand 11639 states and 16002 transitions. Second operand 7 states. [2018-11-07 00:47:21,075 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 00:49:01,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:49:01,164 INFO L93 Difference]: Finished difference Result 23977 states and 32836 transitions. [2018-11-07 00:49:01,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 00:49:01,164 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 228 [2018-11-07 00:49:01,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:49:01,198 INFO L225 Difference]: With dead ends: 23977 [2018-11-07 00:49:01,198 INFO L226 Difference]: Without dead ends: 12344 [2018-11-07 00:49:01,229 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 228 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-11-07 00:49:01,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12344 states. [2018-11-07 00:49:01,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12344 to 12342. [2018-11-07 00:49:01,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12342 states. [2018-11-07 00:49:01,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12342 states to 12342 states and 16714 transitions. [2018-11-07 00:49:01,464 INFO L78 Accepts]: Start accepts. Automaton has 12342 states and 16714 transitions. Word has length 228 [2018-11-07 00:49:01,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:49:01,465 INFO L480 AbstractCegarLoop]: Abstraction has 12342 states and 16714 transitions. [2018-11-07 00:49:01,465 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-07 00:49:01,465 INFO L276 IsEmpty]: Start isEmpty. Operand 12342 states and 16714 transitions. [2018-11-07 00:49:01,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2018-11-07 00:49:01,476 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:49:01,476 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:49:01,477 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:49:01,477 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:49:01,477 INFO L82 PathProgramCache]: Analyzing trace with hash 1811671040, now seen corresponding path program 1 times [2018-11-07 00:49:01,478 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:49:01,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:49:01,479 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:49:01,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:49:01,479 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:49:01,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:49:02,258 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 131 proven. 223 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 00:49:02,259 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:49:02,259 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 00:49:02,259 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 416 with the following transitions: [2018-11-07 00:49:02,260 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1771], [1773], [1776], [1784], [1792], [1800], [1808], [1816], [1824], [1832], [1840], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2196], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2264], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2584], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-11-07 00:49:02,269 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 00:49:02,270 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 00:49:12,770 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 00:49:12,770 INFO L272 AbstractInterpreter]: Visited 196 different actions 385 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 00:49:12,776 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:49:12,776 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 00:49:17,032 INFO L227 lantSequenceWeakener]: Weakened 132 states. On average, predicates are now at 78.09% of their original sizes. [2018-11-07 00:49:17,033 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 00:50:06,283 INFO L415 sIntCurrentIteration]: We unified 414 AI predicates to 414 [2018-11-07 00:50:06,284 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 00:50:06,284 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 00:50:06,284 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [11] total 26 [2018-11-07 00:50:06,285 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:50:06,285 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-07 00:50:06,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-07 00:50:06,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2018-11-07 00:50:06,286 INFO L87 Difference]: Start difference. First operand 12342 states and 16714 transitions. Second operand 17 states. Received shutdown request... [2018-11-07 00:50:06,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 00:50:06,956 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 00:50:06,961 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 00:50:06,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:50:06 BoogieIcfgContainer [2018-11-07 00:50:06,962 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 00:50:06,963 INFO L168 Benchmark]: Toolchain (without parser) took 221140.18 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -836.9 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-11-07 00:50:06,964 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. [2018-11-07 00:50:06,965 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1661.43 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2018-11-07 00:50:06,965 INFO L168 Benchmark]: Boogie Procedure Inliner took 306.64 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 789.1 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -981.5 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-11-07 00:50:06,966 INFO L168 Benchmark]: Boogie Preprocessor took 216.71 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2018-11-07 00:50:06,967 INFO L168 Benchmark]: RCFGBuilder took 7602.16 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 507.5 MB). Peak memory consumption was 507.5 MB. Max. memory is 7.1 GB. [2018-11-07 00:50:06,968 INFO L168 Benchmark]: TraceAbstraction took 211348.23 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 2.3 GB in the end (delta: -524.9 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-11-07 00:50:06,973 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 1661.43 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 306.64 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 789.1 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -981.5 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 216.71 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7602.16 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 507.5 MB). Peak memory consumption was 507.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 211348.23 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 2.3 GB in the end (delta: -524.9 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 81]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 81). Cancelled while BasicCegarLoop was constructing difference of abstraction (12342states) and FLOYD_HOARE automaton (currently 4 states, 17 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 17 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 211.2s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 138.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1677 SDtfs, 11444 SDslu, 927 SDs, 0 SdLazy, 23130 SolverSat, 5470 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 90.0s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 678 GetRequests, 536 SyntacticMatches, 98 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 496 ImplicationChecksByTransitivity, 49.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12342occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 13.3s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9961874561938999 AbsIntWeakeningRatio, 0.0904836193447738 AbsIntAvgWeakeningVarsNumRemoved, 417.8798751950078 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 5 MinimizatonAttempts, 868 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 1006 NumberOfCodeBlocks, 1006 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1000 ConstructedInterpolants, 0 QuantifiedInterpolants, 1747452 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 344/569 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown