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/Problem12_label38_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 00:05:41,887 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 00:05:41,890 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 00:05:41,903 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 00:05:41,903 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 00:05:41,904 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 00:05:41,906 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 00:05:41,908 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 00:05:41,913 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 00:05:41,914 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 00:05:41,915 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 00:05:41,916 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 00:05:41,918 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 00:05:41,921 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 00:05:41,924 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 00:05:41,925 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 00:05:41,926 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 00:05:41,927 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 00:05:41,932 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 00:05:41,933 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 00:05:41,938 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 00:05:41,940 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 00:05:41,944 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-07 00:05:41,953 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 00:05:41,953 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 00:05:41,954 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 00:05:41,957 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 00:05:41,957 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 00:05:41,989 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 00:05:41,989 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 00:05:41,993 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 00:05:41,994 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 00:05:41,994 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 00:05:41,994 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 00:05:41,994 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 00:05:41,995 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 00:05:41,995 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 00:05:41,995 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 00:05:41,995 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 00:05:41,995 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 00:05:41,996 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 00:05:41,996 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 00:05:41,997 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 00:05:41,997 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 00:05:41,997 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 00:05:41,997 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 00:05:41,997 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 00:05:41,998 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 00:05:41,999 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 00:05:41,999 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 00:05:41,999 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 00:05:42,000 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 00:05:42,000 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 00:05:42,000 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 00:05:42,000 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 00:05:42,001 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 00:05:42,001 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 00:05:42,001 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 00:05:42,001 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 00:05:42,001 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 00:05:42,001 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 00:05:42,002 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 00:05:42,047 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 00:05:42,062 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 00:05:42,066 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 00:05:42,068 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 00:05:42,068 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 00:05:42,069 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label38_false-unreach-call.c [2018-11-07 00:05:42,137 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c10defed6/545a3d2261de46478b596e81e00c7141/FLAGf0d86031f [2018-11-07 00:05:42,939 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 00:05:42,941 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label38_false-unreach-call.c [2018-11-07 00:05:42,977 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c10defed6/545a3d2261de46478b596e81e00c7141/FLAGf0d86031f [2018-11-07 00:05:42,996 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c10defed6/545a3d2261de46478b596e81e00c7141 [2018-11-07 00:05:43,008 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 00:05:43,010 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 00:05:43,011 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 00:05:43,011 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 00:05:43,016 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 00:05:43,017 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:05:42" (1/1) ... [2018-11-07 00:05:43,023 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ae48c7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:05:43, skipping insertion in model container [2018-11-07 00:05:43,024 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:05:42" (1/1) ... [2018-11-07 00:05:43,036 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 00:05:43,204 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 00:05:44,510 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 00:05:44,516 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 00:05:45,188 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 00:05:45,224 INFO L193 MainTranslator]: Completed translation [2018-11-07 00:05:45,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:05:45 WrapperNode [2018-11-07 00:05:45,225 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 00:05:45,226 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 00:05:45,226 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 00:05:45,226 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 00:05:45,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:05:45" (1/1) ... [2018-11-07 00:05:45,554 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:05:45" (1/1) ... [2018-11-07 00:05:45,565 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 00:05:45,566 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 00:05:45,566 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 00:05:45,566 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 00:05:45,578 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:05:45" (1/1) ... [2018-11-07 00:05:45,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:05:45" (1/1) ... [2018-11-07 00:05:45,597 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:05:45" (1/1) ... [2018-11-07 00:05:45,598 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:05:45" (1/1) ... [2018-11-07 00:05:45,703 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:05:45" (1/1) ... [2018-11-07 00:05:45,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:05:45" (1/1) ... [2018-11-07 00:05:45,761 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:05:45" (1/1) ... [2018-11-07 00:05:45,786 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 00:05:45,787 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 00:05:45,787 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 00:05:45,787 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 00:05:45,788 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:05:45" (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 00:05:45,860 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 00:05:45,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 00:05:45,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 00:05:45,861 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-07 00:05:45,861 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-07 00:05:45,861 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 00:05:45,862 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 00:05:45,862 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 00:05:45,862 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 00:05:45,862 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 00:05:45,862 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 00:05:45,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 00:05:45,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 00:05:45,864 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 00:05:45,864 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 00:05:54,125 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 00:05:54,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:05:54 BoogieIcfgContainer [2018-11-07 00:05:54,126 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 00:05:54,127 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 00:05:54,128 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 00:05:54,131 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 00:05:54,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:05:42" (1/3) ... [2018-11-07 00:05:54,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@360808a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:05:54, skipping insertion in model container [2018-11-07 00:05:54,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:05:45" (2/3) ... [2018-11-07 00:05:54,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@360808a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:05:54, skipping insertion in model container [2018-11-07 00:05:54,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:05:54" (3/3) ... [2018-11-07 00:05:54,135 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label38_false-unreach-call.c [2018-11-07 00:05:54,145 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 00:05:54,158 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 00:05:54,176 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 00:05:54,326 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 00:05:54,326 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 00:05:54,330 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 00:05:54,330 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 00:05:54,330 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 00:05:54,330 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 00:05:54,330 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 00:05:54,331 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 00:05:54,411 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-11-07 00:05:54,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-07 00:05:54,421 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:05:54,422 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 00:05:54,425 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:05:54,430 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:05:54,431 INFO L82 PathProgramCache]: Analyzing trace with hash -281779493, now seen corresponding path program 1 times [2018-11-07 00:05:54,433 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:05:54,484 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:05:54,484 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:05:54,484 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:05:54,484 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:05:54,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:05:54,950 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 00:05:54,953 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:05:54,953 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 00:05:54,953 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:05:54,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 00:05:54,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 00:05:54,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 00:05:54,979 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 3 states. [2018-11-07 00:06:01,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:06:01,752 INFO L93 Difference]: Finished difference Result 2446 states and 4700 transitions. [2018-11-07 00:06:01,754 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 00:06:01,755 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2018-11-07 00:06:01,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:06:01,790 INFO L225 Difference]: With dead ends: 2446 [2018-11-07 00:06:01,790 INFO L226 Difference]: Without dead ends: 1604 [2018-11-07 00:06:01,803 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 00:06:01,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2018-11-07 00:06:01,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1604. [2018-11-07 00:06:01,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-11-07 00:06:01,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2861 transitions. [2018-11-07 00:06:01,973 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2861 transitions. Word has length 31 [2018-11-07 00:06:01,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:06:01,974 INFO L480 AbstractCegarLoop]: Abstraction has 1604 states and 2861 transitions. [2018-11-07 00:06:01,974 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 00:06:01,974 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2861 transitions. [2018-11-07 00:06:01,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2018-11-07 00:06:01,983 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:06:01,985 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] [2018-11-07 00:06:01,986 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:06:01,986 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:06:01,986 INFO L82 PathProgramCache]: Analyzing trace with hash -1025693032, now seen corresponding path program 1 times [2018-11-07 00:06:01,986 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:06:01,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:06:01,988 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:06:01,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:06:01,988 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:06:02,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:06:02,347 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-07 00:06:02,347 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:06:02,348 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 00:06:02,349 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 108 with the following transitions: [2018-11-07 00:06:02,351 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2015], [2017], [2020], [2028], [2036], [2044], [2052], [2060], [2068], [2076], [2084], [2092], [2100], [2108], [2116], [2124], [2132], [2140], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [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] [2018-11-07 00:06:02,438 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 00:06:02,439 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 00:06:07,034 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 00:06:07,036 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. [2018-11-07 00:06:07,088 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:06:07,088 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 00:06:09,290 INFO L227 lantSequenceWeakener]: Weakened 18 states. On average, predicates are now at 80.32% of their original sizes. [2018-11-07 00:06:09,295 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 00:06:21,131 INFO L415 sIntCurrentIteration]: We unified 106 AI predicates to 106 [2018-11-07 00:06:21,131 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 00:06:21,132 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 00:06:21,132 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [5] total 19 [2018-11-07 00:06:21,132 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:06:21,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-07 00:06:21,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-07 00:06:21,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2018-11-07 00:06:21,135 INFO L87 Difference]: Start difference. First operand 1604 states and 2861 transitions. Second operand 16 states. [2018-11-07 00:07:03,626 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-07 00:09:40,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-07 00:09:40,083 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 00:09:40,090 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 00:09:40,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:09:40 BoogieIcfgContainer [2018-11-07 00:09:40,090 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 00:09:40,091 INFO L168 Benchmark]: Toolchain (without parser) took 237082.89 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 3.9 GB in the end (delta: -2.5 GB). Peak memory consumption was 206.5 MB. Max. memory is 7.1 GB. [2018-11-07 00:09:40,093 INFO L168 Benchmark]: CDTParser took 0.22 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 00:09:40,094 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2214.12 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. [2018-11-07 00:09:40,095 INFO L168 Benchmark]: Boogie Procedure Inliner took 339.76 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 787.5 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 54.5 MB. Max. memory is 7.1 GB. [2018-11-07 00:09:40,096 INFO L168 Benchmark]: Boogie Preprocessor took 221.07 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: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. [2018-11-07 00:09:40,097 INFO L168 Benchmark]: RCFGBuilder took 8339.35 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: 655.7 MB). Peak memory consumption was 655.7 MB. Max. memory is 7.1 GB. [2018-11-07 00:09:40,097 INFO L168 Benchmark]: TraceAbstraction took 225963.22 ms. Allocated memory was 2.3 GB in the beginning and 4.3 GB in the end (delta: 1.9 GB). Free memory was 1.6 GB in the beginning and 3.9 GB in the end (delta: -2.3 GB). There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 00:09:40,106 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 2214.12 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 339.76 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 787.5 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 54.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 221.07 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: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8339.35 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: 655.7 MB). Peak memory consumption was 655.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 225963.22 ms. Allocated memory was 2.3 GB in the beginning and 4.3 GB in the end (delta: 1.9 GB). Free memory was 1.6 GB in the beginning and 3.9 GB in the end (delta: -2.3 GB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 84]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 84). Cancelled while BasicCegarLoop was constructing difference of abstraction (1604states) and FLOYD_HOARE automaton (currently 16 states, 16 states before enhancement),while ReachableStatesComputation was computing reachable states (1125 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 225.8s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 205.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 435 SDtfs, 1605 SDslu, 148 SDs, 0 SdLazy, 4044 SolverSat, 1073 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 109.3s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 117 GetRequests, 91 SyntacticMatches, 5 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 14.5s 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, 4.7s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9915965166908564 AbsIntWeakeningRatio, 0.19811320754716982 AbsIntAvgWeakeningVarsNumRemoved, 400.688679245283 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, 138 NumberOfCodeBlocks, 138 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 136 ConstructedInterpolants, 0 QuantifiedInterpolants, 43700 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 4/24 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown