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/Problem12_label44_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 21:24:18,807 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 21:24:18,809 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 21:24:18,826 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 21:24:18,826 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 21:24:18,827 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 21:24:18,829 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 21:24:18,831 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 21:24:18,832 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 21:24:18,833 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 21:24:18,834 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 21:24:18,834 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 21:24:18,835 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 21:24:18,836 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 21:24:18,837 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 21:24:18,838 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 21:24:18,839 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 21:24:18,841 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 21:24:18,843 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 21:24:18,844 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 21:24:18,846 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 21:24:18,847 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 21:24:18,849 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 21:24:18,850 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 21:24:18,850 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 21:24:18,851 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 21:24:18,852 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 21:24:18,853 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 21:24:18,853 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 21:24:18,854 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 21:24:18,855 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 21:24:18,855 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 21:24:18,856 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 21:24:18,856 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 21:24:18,857 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 21:24:18,858 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 21:24:18,858 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 21:24:18,874 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 21:24:18,874 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 21:24:18,875 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 21:24:18,875 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 21:24:18,875 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 21:24:18,875 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 21:24:18,876 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 21:24:18,876 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 21:24:18,876 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 21:24:18,876 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 21:24:18,876 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 21:24:18,876 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 21:24:18,877 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 21:24:18,877 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 21:24:18,878 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 21:24:18,878 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 21:24:18,878 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 21:24:18,878 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 21:24:18,878 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 21:24:18,879 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 21:24:18,879 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 21:24:18,879 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 21:24:18,879 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 21:24:18,879 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 21:24:18,880 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 21:24:18,880 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 21:24:18,880 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 21:24:18,880 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 21:24:18,880 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 21:24:18,881 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 21:24:18,881 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 21:24:18,881 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 21:24:18,881 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 21:24:18,881 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 21:24:18,924 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 21:24:18,937 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 21:24:18,940 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 21:24:18,942 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 21:24:18,942 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 21:24:18,943 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label44_true-unreach-call.c [2018-10-24 21:24:19,003 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b296ff1eb/9b3520b2a149474f86193dcb9e027c2a/FLAGcc2aa0ef9 [2018-10-24 21:24:19,811 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 21:24:19,812 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label44_true-unreach-call.c [2018-10-24 21:24:19,839 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b296ff1eb/9b3520b2a149474f86193dcb9e027c2a/FLAGcc2aa0ef9 [2018-10-24 21:24:19,855 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b296ff1eb/9b3520b2a149474f86193dcb9e027c2a [2018-10-24 21:24:19,867 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 21:24:19,868 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 21:24:19,870 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 21:24:19,870 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 21:24:19,874 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 21:24:19,875 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:24:19" (1/1) ... [2018-10-24 21:24:19,878 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6351e815 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:24:19, skipping insertion in model container [2018-10-24 21:24:19,878 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:24:19" (1/1) ... [2018-10-24 21:24:19,889 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 21:24:20,051 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 21:24:21,248 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:24:21,253 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 21:24:21,854 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:24:21,890 INFO L193 MainTranslator]: Completed translation [2018-10-24 21:24:21,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:24:21 WrapperNode [2018-10-24 21:24:21,891 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 21:24:21,892 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 21:24:21,892 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 21:24:21,892 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 21:24:21,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:24:21" (1/1) ... [2018-10-24 21:24:21,968 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:24:21" (1/1) ... [2018-10-24 21:24:22,391 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 21:24:22,391 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 21:24:22,392 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 21:24:22,392 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 21:24:22,403 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:24:21" (1/1) ... [2018-10-24 21:24:22,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:24:21" (1/1) ... [2018-10-24 21:24:22,428 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:24:21" (1/1) ... [2018-10-24 21:24:22,429 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:24:21" (1/1) ... [2018-10-24 21:24:22,535 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:24:21" (1/1) ... [2018-10-24 21:24:22,573 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:24:21" (1/1) ... [2018-10-24 21:24:22,600 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:24:21" (1/1) ... [2018-10-24 21:24:22,629 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 21:24:22,630 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 21:24:22,630 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 21:24:22,630 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 21:24:22,631 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:24:21" (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 21:24:22,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 21:24:22,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 21:24:22,698 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-24 21:24:22,698 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-24 21:24:22,699 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-24 21:24:22,699 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-24 21:24:22,699 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 21:24:22,699 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 21:24:22,699 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 21:24:22,699 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 21:24:22,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 21:24:22,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 21:24:22,700 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 21:24:22,700 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 21:24:33,780 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 21:24:33,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:24:33 BoogieIcfgContainer [2018-10-24 21:24:33,781 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 21:24:33,782 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 21:24:33,782 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 21:24:33,786 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 21:24:33,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:24:19" (1/3) ... [2018-10-24 21:24:33,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cdaaa20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:24:33, skipping insertion in model container [2018-10-24 21:24:33,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:24:21" (2/3) ... [2018-10-24 21:24:33,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cdaaa20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:24:33, skipping insertion in model container [2018-10-24 21:24:33,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:24:33" (3/3) ... [2018-10-24 21:24:33,789 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label44_true-unreach-call.c [2018-10-24 21:24:33,800 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 21:24:33,811 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 21:24:33,830 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 21:24:33,875 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 21:24:33,876 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 21:24:33,876 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 21:24:33,876 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 21:24:33,876 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 21:24:33,876 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 21:24:33,876 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 21:24:33,877 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 21:24:33,934 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-10-24 21:24:33,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-10-24 21:24:33,945 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:24:33,946 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:24:33,949 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:24:33,957 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:24:33,957 INFO L82 PathProgramCache]: Analyzing trace with hash -567978269, now seen corresponding path program 1 times [2018-10-24 21:24:33,960 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:24:34,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:24:34,018 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:24:34,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:24:34,018 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:24:34,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:24:34,496 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 21:24:34,499 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:24:34,499 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 21:24:34,499 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:24:34,505 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 21:24:34,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 21:24:34,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 21:24:34,526 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 3 states. [2018-10-24 21:24:42,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:24:42,306 INFO L93 Difference]: Finished difference Result 2446 states and 4700 transitions. [2018-10-24 21:24:42,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 21:24:42,308 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 57 [2018-10-24 21:24:42,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:24:42,353 INFO L225 Difference]: With dead ends: 2446 [2018-10-24 21:24:42,353 INFO L226 Difference]: Without dead ends: 1604 [2018-10-24 21:24:42,370 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 21:24:42,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2018-10-24 21:24:42,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1604. [2018-10-24 21:24:42,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-10-24 21:24:42,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2861 transitions. [2018-10-24 21:24:42,551 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2861 transitions. Word has length 57 [2018-10-24 21:24:42,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:24:42,552 INFO L481 AbstractCegarLoop]: Abstraction has 1604 states and 2861 transitions. [2018-10-24 21:24:42,552 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 21:24:42,552 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2861 transitions. [2018-10-24 21:24:42,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-10-24 21:24:42,562 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:24:42,563 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:24:42,563 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:24:42,563 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:24:42,564 INFO L82 PathProgramCache]: Analyzing trace with hash -1852276032, now seen corresponding path program 1 times [2018-10-24 21:24:42,564 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:24:42,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:24:42,565 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:24:42,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:24:42,566 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:24:42,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:24:43,008 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 43 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:24:43,009 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:24:43,009 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:24:43,010 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 134 with the following transitions: [2018-10-24 21:24:43,012 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2187], [2195], [2203], [2211], [2219], [2223], [2225], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2384], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-10-24 21:24:43,086 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:24:43,087 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:24:47,946 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:24:47,947 INFO L272 AbstractInterpreter]: Visited 83 different actions 159 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-10-24 21:24:47,992 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:24:47,992 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:24:50,404 INFO L232 lantSequenceWeakener]: Weakened 44 states. On average, predicates are now at 79.64% of their original sizes. [2018-10-24 21:24:50,405 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 21:25:02,757 INFO L413 sIntCurrentIteration]: We have 132 unified AI predicates [2018-10-24 21:25:02,757 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 21:25:02,758 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 21:25:02,758 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [7] total 23 [2018-10-24 21:25:02,758 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:25:02,760 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-10-24 21:25:02,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-10-24 21:25:02,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2018-10-24 21:25:02,761 INFO L87 Difference]: Start difference. First operand 1604 states and 2861 transitions. Second operand 18 states. [2018-10-24 21:25:29,936 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-24 21:28:15,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-24 21:28:15,770 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 21:28:15,775 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 21:28:15,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:28:15 BoogieIcfgContainer [2018-10-24 21:28:15,775 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 21:28:15,776 INFO L168 Benchmark]: Toolchain (without parser) took 235908.95 ms. Allocated memory was 1.5 GB in the beginning and 4.3 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.6 GB in the end (delta: -2.2 GB). Peak memory consumption was 525.0 MB. Max. memory is 7.1 GB. [2018-10-24 21:28:15,778 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 21:28:15,779 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2021.41 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: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. [2018-10-24 21:28:15,780 INFO L168 Benchmark]: Boogie Procedure Inliner took 499.48 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 798.5 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 58.3 MB. Max. memory is 7.1 GB. [2018-10-24 21:28:15,781 INFO L168 Benchmark]: Boogie Preprocessor took 238.16 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. [2018-10-24 21:28:15,782 INFO L168 Benchmark]: RCFGBuilder took 11150.97 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 164.6 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -148.0 MB). Peak memory consumption was 652.3 MB. Max. memory is 7.1 GB. [2018-10-24 21:28:15,783 INFO L168 Benchmark]: TraceAbstraction took 221993.47 ms. Allocated memory was 2.5 GB in the beginning and 4.3 GB in the end (delta: 1.7 GB). Free memory was 2.4 GB in the beginning and 3.6 GB in the end (delta: -1.2 GB). Peak memory consumption was 523.6 MB. Max. memory is 7.1 GB. [2018-10-24 21:28:15,788 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2021.41 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: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 499.48 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 798.5 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 58.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 238.16 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11150.97 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 164.6 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -148.0 MB). Peak memory consumption was 652.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 221993.47 ms. Allocated memory was 2.5 GB in the beginning and 4.3 GB in the end (delta: 1.7 GB). Free memory was 2.4 GB in the beginning and 3.6 GB in the end (delta: -1.2 GB). Peak memory consumption was 523.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 162]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 162). Cancelled while BasicCegarLoop was constructing difference of abstraction (1604states) and FLOYD_HOARE automaton (currently 16 states, 18 states before enhancement),while ReachableStatesComputation was computing reachable states (1857 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 221.9s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 200.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 546 SDtfs, 4493 SDslu, 256 SDs, 0 SdLazy, 4284 SolverSat, 1366 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 107.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 143 GetRequests, 115 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 15.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1604occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 4.9s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9932517482517483 AbsIntWeakeningRatio, 0.1590909090909091 AbsIntAvgWeakeningVarsNumRemoved, 415.1818181818182 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 190 NumberOfCodeBlocks, 190 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 188 ConstructedInterpolants, 0 QuantifiedInterpolants, 116356 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 43/50 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown