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_label02_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-24 01:12:53,804 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 01:12:53,806 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 01:12:53,825 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 01:12:53,825 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 01:12:53,827 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 01:12:53,829 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 01:12:53,832 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 01:12:53,833 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 01:12:53,836 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 01:12:53,838 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 01:12:53,838 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 01:12:53,839 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 01:12:53,840 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 01:12:53,841 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 01:12:53,844 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 01:12:53,845 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 01:12:53,848 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 01:12:53,850 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 01:12:53,851 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 01:12:53,852 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 01:12:53,854 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 01:12:53,856 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 01:12:53,856 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 01:12:53,857 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 01:12:53,857 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 01:12:53,858 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 01:12:53,859 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 01:12:53,860 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 01:12:53,861 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 01:12:53,861 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 01:12:53,862 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 01:12:53,862 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 01:12:53,862 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 01:12:53,863 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 01:12:53,864 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 01:12:53,864 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 01:12:53,890 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 01:12:53,893 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 01:12:53,893 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 01:12:53,894 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 01:12:53,894 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 01:12:53,894 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 01:12:53,894 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 01:12:53,894 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 01:12:53,895 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 01:12:53,895 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 01:12:53,895 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 01:12:53,895 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 01:12:53,899 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 01:12:53,899 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 01:12:53,899 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 01:12:53,899 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 01:12:53,900 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 01:12:53,900 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 01:12:53,900 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 01:12:53,900 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 01:12:53,900 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 01:12:53,900 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 01:12:53,901 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 01:12:53,901 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 01:12:53,901 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 01:12:53,901 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 01:12:53,901 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 01:12:53,902 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 01:12:53,903 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 01:12:53,904 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 01:12:53,904 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 01:12:53,904 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 01:12:53,904 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 01:12:53,904 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 01:12:53,956 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 01:12:53,975 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 01:12:53,979 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 01:12:53,981 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 01:12:53,981 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 01:12:53,982 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label02_true-unreach-call.c [2018-10-24 01:12:54,051 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/4e8c0a31b/bcda1ca8361c47cc8e1be167def22437/FLAG564c1c6ae [2018-10-24 01:12:54,829 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 01:12:54,830 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label02_true-unreach-call.c [2018-10-24 01:12:54,860 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/4e8c0a31b/bcda1ca8361c47cc8e1be167def22437/FLAG564c1c6ae [2018-10-24 01:12:54,876 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/4e8c0a31b/bcda1ca8361c47cc8e1be167def22437 [2018-10-24 01:12:54,889 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 01:12:54,891 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 01:12:54,892 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 01:12:54,892 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 01:12:54,896 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 01:12:54,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:12:54" (1/1) ... [2018-10-24 01:12:54,901 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d7ae5c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:12:54, skipping insertion in model container [2018-10-24 01:12:54,901 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:12:54" (1/1) ... [2018-10-24 01:12:54,912 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 01:12:55,067 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 01:12:56,345 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 01:12:56,350 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 01:12:56,959 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 01:12:56,997 INFO L193 MainTranslator]: Completed translation [2018-10-24 01:12:56,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:12:56 WrapperNode [2018-10-24 01:12:56,998 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 01:12:57,000 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 01:12:57,000 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 01:12:57,001 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 01:12:57,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:12:56" (1/1) ... [2018-10-24 01:12:57,079 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:12:56" (1/1) ... [2018-10-24 01:12:57,542 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 01:12:57,543 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 01:12:57,543 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 01:12:57,543 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 01:12:57,554 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:12:56" (1/1) ... [2018-10-24 01:12:57,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:12:56" (1/1) ... [2018-10-24 01:12:57,577 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:12:56" (1/1) ... [2018-10-24 01:12:57,577 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:12:56" (1/1) ... [2018-10-24 01:12:57,688 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:12:56" (1/1) ... [2018-10-24 01:12:57,732 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:12:56" (1/1) ... [2018-10-24 01:12:57,767 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:12:56" (1/1) ... [2018-10-24 01:12:57,815 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 01:12:57,815 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 01:12:57,816 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 01:12:57,816 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 01:12:57,817 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:12:56" (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 01:12:57,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 01:12:57,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 01:12:57,884 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-24 01:12:57,885 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-24 01:12:57,885 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-24 01:12:57,885 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-24 01:12:57,885 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 01:12:57,885 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 01:12:57,886 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 01:12:57,886 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 01:12:57,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 01:12:57,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 01:12:57,886 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 01:12:57,887 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 01:13:09,634 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 01:13:09,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:13:09 BoogieIcfgContainer [2018-10-24 01:13:09,635 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 01:13:09,636 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 01:13:09,636 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 01:13:09,639 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 01:13:09,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:12:54" (1/3) ... [2018-10-24 01:13:09,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c9660a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:13:09, skipping insertion in model container [2018-10-24 01:13:09,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:12:56" (2/3) ... [2018-10-24 01:13:09,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c9660a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:13:09, skipping insertion in model container [2018-10-24 01:13:09,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:13:09" (3/3) ... [2018-10-24 01:13:09,643 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label02_true-unreach-call.c [2018-10-24 01:13:09,654 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 01:13:09,663 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 01:13:09,682 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 01:13:09,868 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 01:13:09,869 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 01:13:09,869 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 01:13:09,869 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 01:13:09,869 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 01:13:09,869 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 01:13:09,870 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 01:13:09,870 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 01:13:09,928 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-10-24 01:13:09,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-10-24 01:13:09,939 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:13:09,940 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 01:13:09,943 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:13:09,949 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:13:09,949 INFO L82 PathProgramCache]: Analyzing trace with hash 395578323, now seen corresponding path program 1 times [2018-10-24 01:13:09,952 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:13:10,011 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:13:10,012 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:13:10,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:13:10,012 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:13:10,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:13:10,522 WARN L179 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 01:13:10,641 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 01:13:10,643 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 01:13:10,643 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 01:13:10,644 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:13:10,650 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 01:13:10,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 01:13:10,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 01:13:10,670 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 3 states. [2018-10-24 01:13:19,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:13:19,492 INFO L93 Difference]: Finished difference Result 2446 states and 4700 transitions. [2018-10-24 01:13:19,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 01:13:19,494 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2018-10-24 01:13:19,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:13:19,544 INFO L225 Difference]: With dead ends: 2446 [2018-10-24 01:13:19,544 INFO L226 Difference]: Without dead ends: 1604 [2018-10-24 01:13:19,560 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 01:13:19,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2018-10-24 01:13:19,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1604. [2018-10-24 01:13:19,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-10-24 01:13:19,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2861 transitions. [2018-10-24 01:13:19,762 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2861 transitions. Word has length 69 [2018-10-24 01:13:19,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:13:19,763 INFO L481 AbstractCegarLoop]: Abstraction has 1604 states and 2861 transitions. [2018-10-24 01:13:19,763 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 01:13:19,764 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2861 transitions. [2018-10-24 01:13:19,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-10-24 01:13:19,776 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:13:19,777 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 01:13:19,777 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:13:19,778 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:13:19,778 INFO L82 PathProgramCache]: Analyzing trace with hash 1284545392, now seen corresponding path program 1 times [2018-10-24 01:13:19,778 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:13:19,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:13:19,780 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:13:19,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:13:19,780 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:13:19,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:13:20,178 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-24 01:13:20,179 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 01:13:20,179 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 01:13:20,180 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 146 with the following transitions: [2018-10-24 01:13:20,182 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], [2227], [2235], [2243], [2251], [2259], [2267], [2275], [2283], [2291], [2299], [2307], [2315], [2319], [2321], [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 01:13:20,249 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 01:13:20,250 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 01:13:25,092 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 01:13:25,094 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 01:13:25,140 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:13:25,140 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 01:13:28,432 INFO L232 lantSequenceWeakener]: Weakened 56 states. On average, predicates are now at 79.54% of their original sizes. [2018-10-24 01:13:28,433 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 01:13:41,618 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 01:13:41,619 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 01:13:41,619 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [5] total 21 [2018-10-24 01:13:41,619 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:13:41,621 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-10-24 01:13:41,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-10-24 01:13:41,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2018-10-24 01:13:41,622 INFO L87 Difference]: Start difference. First operand 1604 states and 2861 transitions. Second operand 18 states. [2018-10-24 01:14:09,272 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-24 01:16:42,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-24 01:16:42,623 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 01:16:42,629 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 01:16:42,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 01:16:42 BoogieIcfgContainer [2018-10-24 01:16:42,630 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 01:16:42,631 INFO L168 Benchmark]: Toolchain (without parser) took 227741.19 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -518.8 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-10-24 01:16:42,633 INFO L168 Benchmark]: CDTParser took 0.20 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 01:16:42,633 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2106.88 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: 202.9 MB). Peak memory consumption was 202.9 MB. Max. memory is 7.1 GB. [2018-10-24 01:16:42,634 INFO L168 Benchmark]: Boogie Procedure Inliner took 542.50 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 801.1 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 68.9 MB. Max. memory is 7.1 GB. [2018-10-24 01:16:42,635 INFO L168 Benchmark]: Boogie Preprocessor took 272.25 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: 37.4 MB). Peak memory consumption was 37.4 MB. Max. memory is 7.1 GB. [2018-10-24 01:16:42,636 INFO L168 Benchmark]: RCFGBuilder took 11819.48 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.6 GB in the end (delta: 654.3 MB). Peak memory consumption was 654.3 MB. Max. memory is 7.1 GB. [2018-10-24 01:16:42,639 INFO L168 Benchmark]: TraceAbstraction took 212994.08 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.6 GB in the beginning and 1.9 GB in the end (delta: -365.1 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-10-24 01:16:42,644 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 2106.88 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: 202.9 MB). Peak memory consumption was 202.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 542.50 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 801.1 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 68.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 272.25 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: 37.4 MB). Peak memory consumption was 37.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11819.48 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.6 GB in the end (delta: 654.3 MB). Peak memory consumption was 654.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 212994.08 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.6 GB in the beginning and 1.9 GB in the end (delta: -365.1 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 198]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 198). 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 (1509 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 212.7s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 189.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 490 SDtfs, 3566 SDslu, 238 SDs, 0 SdLazy, 3992 SolverSat, 1250 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 89.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 155 GetRequests, 127 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 15.9s 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, 0.9938141025641022 AbsIntWeakeningRatio, 0.14583333333333334 AbsIntAvgWeakeningVarsNumRemoved, 474.0 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, 0.7s InterpolantComputationTime, 214 NumberOfCodeBlocks, 214 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 212 ConstructedInterpolants, 0 QuantifiedInterpolants, 100168 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 4/62 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown