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-INT-LIM.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label34_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-63daa26 [2018-11-12 16:48:42,926 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 16:48:42,929 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 16:48:42,945 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 16:48:42,945 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 16:48:42,947 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 16:48:42,948 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 16:48:42,952 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 16:48:42,953 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 16:48:42,954 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 16:48:42,955 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 16:48:42,955 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 16:48:42,956 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 16:48:42,957 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 16:48:42,961 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 16:48:42,962 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 16:48:42,963 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 16:48:42,973 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 16:48:42,975 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 16:48:42,977 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 16:48:42,981 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 16:48:42,982 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 16:48:42,988 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-12 16:48:42,988 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-12 16:48:42,988 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-12 16:48:42,990 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-12 16:48:42,991 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-12 16:48:42,991 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-12 16:48:42,992 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-12 16:48:42,993 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-12 16:48:42,993 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-12 16:48:42,994 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-12 16:48:42,994 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-12 16:48:42,995 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-12 16:48:42,995 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-12 16:48:42,996 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-12 16:48:42,996 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-12 16:48:43,016 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 16:48:43,016 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 16:48:43,017 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 16:48:43,017 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 16:48:43,018 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 16:48:43,018 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 16:48:43,018 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 16:48:43,018 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 16:48:43,018 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 16:48:43,019 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 16:48:43,019 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 16:48:43,019 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 16:48:43,019 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 16:48:43,023 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 16:48:43,023 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 16:48:43,023 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 16:48:43,024 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 16:48:43,024 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 16:48:43,024 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 16:48:43,024 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 16:48:43,024 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 16:48:43,026 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 16:48:43,026 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 16:48:43,027 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 16:48:43,027 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 16:48:43,027 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 16:48:43,027 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 16:48:43,027 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 16:48:43,028 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 16:48:43,028 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 16:48:43,028 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 16:48:43,028 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 16:48:43,028 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 16:48:43,028 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 16:48:43,029 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 16:48:43,085 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 16:48:43,104 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 16:48:43,109 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 16:48:43,111 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 16:48:43,112 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 16:48:43,112 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label34_false-unreach-call.c [2018-11-12 16:48:43,175 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a850d8801/f4ad2c28e8fe4e6c8104106fc645cd20/FLAGd7fbae888 [2018-11-12 16:48:43,842 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 16:48:43,843 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label34_false-unreach-call.c [2018-11-12 16:48:43,875 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a850d8801/f4ad2c28e8fe4e6c8104106fc645cd20/FLAGd7fbae888 [2018-11-12 16:48:43,896 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a850d8801/f4ad2c28e8fe4e6c8104106fc645cd20 [2018-11-12 16:48:43,908 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 16:48:43,910 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 16:48:43,912 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 16:48:43,912 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 16:48:43,916 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 16:48:43,917 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:48:43" (1/1) ... [2018-11-12 16:48:43,920 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f562764 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:48:43, skipping insertion in model container [2018-11-12 16:48:43,920 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:48:43" (1/1) ... [2018-11-12 16:48:43,931 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 16:48:44,056 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 16:48:45,176 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 16:48:45,180 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 16:48:45,575 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 16:48:45,602 INFO L193 MainTranslator]: Completed translation [2018-11-12 16:48:45,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:48:45 WrapperNode [2018-11-12 16:48:45,603 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 16:48:45,604 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 16:48:45,604 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 16:48:45,604 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 16:48:45,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:48:45" (1/1) ... [2018-11-12 16:48:45,872 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:48:45" (1/1) ... [2018-11-12 16:48:45,883 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 16:48:45,884 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 16:48:45,884 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 16:48:45,884 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 16:48:45,895 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:48:45" (1/1) ... [2018-11-12 16:48:45,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:48:45" (1/1) ... [2018-11-12 16:48:45,909 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:48:45" (1/1) ... [2018-11-12 16:48:45,909 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:48:45" (1/1) ... [2018-11-12 16:48:46,003 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:48:45" (1/1) ... [2018-11-12 16:48:46,043 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:48:45" (1/1) ... [2018-11-12 16:48:46,075 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:48:45" (1/1) ... [2018-11-12 16:48:46,109 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 16:48:46,110 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 16:48:46,110 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 16:48:46,110 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 16:48:46,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:48:45" (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 [2018-11-12 16:48:46,179 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-12 16:48:46,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 16:48:46,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 16:48:46,179 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-12 16:48:46,180 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-12 16:48:46,180 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-12 16:48:46,180 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-12 16:48:46,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 16:48:46,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 16:48:46,180 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 16:48:46,181 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 16:48:55,174 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 16:48:55,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:48:55 BoogieIcfgContainer [2018-11-12 16:48:55,176 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 16:48:55,177 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 16:48:55,178 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 16:48:55,181 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 16:48:55,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 04:48:43" (1/3) ... [2018-11-12 16:48:55,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76d3d950 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:48:55, skipping insertion in model container [2018-11-12 16:48:55,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:48:45" (2/3) ... [2018-11-12 16:48:55,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76d3d950 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:48:55, skipping insertion in model container [2018-11-12 16:48:55,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:48:55" (3/3) ... [2018-11-12 16:48:55,187 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label34_false-unreach-call.c [2018-11-12 16:48:55,199 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 16:48:55,211 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 16:48:55,230 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 16:48:55,288 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 16:48:55,288 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 16:48:55,288 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 16:48:55,288 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 16:48:55,288 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 16:48:55,289 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 16:48:55,289 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 16:48:55,289 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 16:48:55,340 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-11-12 16:48:55,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-12 16:48:55,349 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:48:55,350 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] [2018-11-12 16:48:55,354 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:48:55,360 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:48:55,361 INFO L82 PathProgramCache]: Analyzing trace with hash 808128948, now seen corresponding path program 1 times [2018-11-12 16:48:55,364 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:48:55,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:48:55,424 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:48:55,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:48:55,424 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:48:55,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:48:55,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 16:48:55,795 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 16:48:55,795 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-12 16:48:55,795 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:48:55,801 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-12 16:48:55,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-12 16:48:55,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 16:48:55,820 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-11-12 16:49:06,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:49:06,700 INFO L93 Difference]: Finished difference Result 2118 states and 3937 transitions. [2018-11-12 16:49:06,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-12 16:49:06,701 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2018-11-12 16:49:06,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:49:06,730 INFO L225 Difference]: With dead ends: 2118 [2018-11-12 16:49:06,730 INFO L226 Difference]: Without dead ends: 1508 [2018-11-12 16:49:06,741 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 16:49:06,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2018-11-12 16:49:06,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 1039. [2018-11-12 16:49:06,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1039 states. [2018-11-12 16:49:06,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 1596 transitions. [2018-11-12 16:49:06,881 INFO L78 Accepts]: Start accepts. Automaton has 1039 states and 1596 transitions. Word has length 26 [2018-11-12 16:49:06,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:49:06,882 INFO L480 AbstractCegarLoop]: Abstraction has 1039 states and 1596 transitions. [2018-11-12 16:49:06,882 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-12 16:49:06,882 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1596 transitions. [2018-11-12 16:49:06,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-11-12 16:49:06,888 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:49:06,888 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 16:49:06,889 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:49:06,889 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:49:06,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1801409866, now seen corresponding path program 1 times [2018-11-12 16:49:06,889 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:49:06,892 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:49:06,892 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:49:06,892 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:49:06,892 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:49:07,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:49:07,298 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 16:49:07,298 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:49:07,298 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:49:07,300 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 102 with the following transitions: [2018-11-12 16:49:07,302 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [818], [820], [823], [831], [839], [847], [855], [863], [871], [879], [887], [895], [903], [911], [919], [927], [935], [943], [951], [959], [967], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-11-12 16:49:07,349 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:49:07,349 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:49:07,807 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 16:49:08,549 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-12 16:49:08,551 INFO L272 AbstractInterpreter]: Visited 83 different actions 235 times. Merged at 5 different actions 9 times. Never widened. Performed 3910 root evaluator evaluations with a maximum evaluation depth of 6. Performed 3910 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-12 16:49:08,595 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:49:08,597 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-12 16:49:08,597 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:49:08,597 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-12 16:49:08,614 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:49:08,615 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-12 16:49:08,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:49:08,722 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-12 16:49:43,762 WARN L179 SmtUtils]: Spent 34.50 s on a formula simplification. DAG size of input: 147 DAG size of output: 74 [2018-11-12 16:49:44,281 WARN L179 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 23 [2018-11-12 16:49:44,678 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-11-12 16:49:44,744 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 16:49:44,744 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-12 16:49:45,150 WARN L179 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-11-12 16:49:45,265 WARN L179 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-11-12 16:49:45,549 WARN L179 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 18 [2018-11-12 16:49:45,868 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-11-12 16:49:46,029 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 376 Received shutdown request... [2018-11-12 16:52:03,959 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-11-12 16:52:04,161 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-12 16:52:04,161 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-12 16:52:04,167 WARN L205 ceAbstractionStarter]: Timeout [2018-11-12 16:52:04,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 04:52:04 BoogieIcfgContainer [2018-11-12 16:52:04,167 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-12 16:52:04,168 INFO L168 Benchmark]: Toolchain (without parser) took 200259.73 ms. Allocated memory was 1.5 GB in the beginning and 7.5 GB in the end (delta: 5.9 GB). Free memory was 1.4 GB in the beginning and 2.8 GB in the end (delta: -1.4 GB). Peak memory consumption was 7.1 GB. Max. memory is 7.1 GB. [2018-11-12 16:52:04,170 INFO L168 Benchmark]: CDTParser took 0.26 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. [2018-11-12 16:52:04,171 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1692.06 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. [2018-11-12 16:52:04,172 INFO L168 Benchmark]: Boogie Procedure Inliner took 279.30 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 777.0 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -958.8 MB). Peak memory consumption was 42.2 MB. Max. memory is 7.1 GB. [2018-11-12 16:52:04,173 INFO L168 Benchmark]: Boogie Preprocessor took 225.83 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2018-11-12 16:52:04,174 INFO L168 Benchmark]: RCFGBuilder took 9066.48 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 452.2 MB). Peak memory consumption was 452.2 MB. Max. memory is 7.1 GB. [2018-11-12 16:52:04,175 INFO L168 Benchmark]: TraceAbstraction took 188990.07 ms. Allocated memory was 2.3 GB in the beginning and 7.5 GB in the end (delta: 5.2 GB). Free memory was 1.8 GB in the beginning and 2.8 GB in the end (delta: -1.0 GB). Peak memory consumption was 6.6 GB. Max. memory is 7.1 GB. [2018-11-12 16:52:04,180 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 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 1692.06 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 279.30 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 777.0 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -958.8 MB). Peak memory consumption was 42.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 225.83 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9066.48 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 452.2 MB). Peak memory consumption was 452.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 188990.07 ms. Allocated memory was 2.3 GB in the beginning and 7.5 GB in the end (delta: 5.2 GB). Free memory was 1.8 GB in the beginning and 2.8 GB in the end (delta: -1.0 GB). Peak memory consumption was 6.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 65]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 65). Cancelled while BasicCegarLoop was analyzing trace of length 102 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while PartialQuantifierElimination was eliminating quantifiers from formula with 1 quantifier alternations,while CnfTransformerHelper was transforming 376 disjunction. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 188.8s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 10.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 552 SDtfs, 968 SDslu, 293 SDs, 0 SdLazy, 2704 SolverSat, 756 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 9.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1039occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.2s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 469 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 1775 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown