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.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label18_false-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 12:09:43,945 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 12:09:43,947 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 12:09:43,959 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 12:09:43,959 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 12:09:43,960 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 12:09:43,962 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 12:09:43,964 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 12:09:43,965 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 12:09:43,966 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 12:09:43,967 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 12:09:43,967 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 12:09:43,968 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 12:09:43,969 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 12:09:43,970 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 12:09:43,971 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 12:09:43,972 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 12:09:43,974 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 12:09:43,976 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 12:09:43,978 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 12:09:43,979 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 12:09:43,980 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 12:09:43,982 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 12:09:43,983 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 12:09:43,983 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 12:09:43,984 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 12:09:43,985 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 12:09:43,986 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 12:09:43,987 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 12:09:43,989 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 12:09:43,989 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 12:09:43,990 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 12:09:43,990 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 12:09:43,990 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 12:09:43,994 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 12:09:43,994 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 12:09:43,996 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.epf [2018-11-07 12:09:44,025 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 12:09:44,025 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 12:09:44,027 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 12:09:44,027 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 12:09:44,027 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 12:09:44,027 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 12:09:44,028 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 12:09:44,028 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 12:09:44,028 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 12:09:44,028 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 12:09:44,029 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 12:09:44,029 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 12:09:44,029 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 12:09:44,030 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 12:09:44,030 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 12:09:44,030 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 12:09:44,030 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 12:09:44,030 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 12:09:44,031 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 12:09:44,032 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 12:09:44,032 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 12:09:44,032 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 12:09:44,032 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 12:09:44,033 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 12:09:44,033 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 12:09:44,033 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 12:09:44,034 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 12:09:44,034 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 12:09:44,034 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 12:09:44,034 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 12:09:44,034 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 12:09:44,034 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 12:09:44,035 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 12:09:44,035 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 12:09:44,085 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 12:09:44,099 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 12:09:44,103 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 12:09:44,105 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 12:09:44,106 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 12:09:44,107 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label18_false-unreach-call_false-termination.c [2018-11-07 12:09:44,173 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d4b079c8/414ff69b9f914538931967a96e4261ff/FLAG9b18a21df [2018-11-07 12:09:44,852 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 12:09:44,853 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label18_false-unreach-call_false-termination.c [2018-11-07 12:09:44,876 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d4b079c8/414ff69b9f914538931967a96e4261ff/FLAG9b18a21df [2018-11-07 12:09:44,897 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d4b079c8/414ff69b9f914538931967a96e4261ff [2018-11-07 12:09:44,908 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 12:09:44,909 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 12:09:44,910 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 12:09:44,910 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 12:09:44,914 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 12:09:44,915 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:09:44" (1/1) ... [2018-11-07 12:09:44,918 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4420828b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:09:44, skipping insertion in model container [2018-11-07 12:09:44,919 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:09:44" (1/1) ... [2018-11-07 12:09:44,930 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 12:09:45,025 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 12:09:45,926 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 12:09:45,931 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 12:09:46,217 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 12:09:46,239 INFO L193 MainTranslator]: Completed translation [2018-11-07 12:09:46,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:09:46 WrapperNode [2018-11-07 12:09:46,240 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 12:09:46,241 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 12:09:46,241 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 12:09:46,241 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 12:09:46,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:09:46" (1/1) ... [2018-11-07 12:09:46,465 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:09:46" (1/1) ... [2018-11-07 12:09:46,479 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 12:09:46,480 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 12:09:46,480 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 12:09:46,480 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 12:09:46,493 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:09:46" (1/1) ... [2018-11-07 12:09:46,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:09:46" (1/1) ... [2018-11-07 12:09:46,504 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:09:46" (1/1) ... [2018-11-07 12:09:46,504 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:09:46" (1/1) ... [2018-11-07 12:09:46,586 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:09:46" (1/1) ... [2018-11-07 12:09:46,625 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:09:46" (1/1) ... [2018-11-07 12:09:46,654 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:09:46" (1/1) ... [2018-11-07 12:09:46,680 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 12:09:46,680 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 12:09:46,681 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 12:09:46,681 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 12:09:46,683 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:09:46" (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 12:09:46,756 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 12:09:46,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 12:09:46,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 12:09:46,757 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 12:09:46,757 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 12:09:46,757 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 12:09:46,757 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 12:09:46,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 12:09:46,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 12:09:46,758 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 12:09:46,758 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 12:09:53,546 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 12:09:53,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:09:53 BoogieIcfgContainer [2018-11-07 12:09:53,547 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 12:09:53,549 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 12:09:53,549 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 12:09:53,552 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 12:09:53,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:09:44" (1/3) ... [2018-11-07 12:09:53,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65979613 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:09:53, skipping insertion in model container [2018-11-07 12:09:53,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:09:46" (2/3) ... [2018-11-07 12:09:53,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65979613 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:09:53, skipping insertion in model container [2018-11-07 12:09:53,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:09:53" (3/3) ... [2018-11-07 12:09:53,556 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label18_false-unreach-call_false-termination.c [2018-11-07 12:09:53,566 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 12:09:53,576 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 12:09:53,595 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 12:09:53,639 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 12:09:53,639 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 12:09:53,639 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 12:09:53,640 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 12:09:53,640 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 12:09:53,640 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 12:09:53,640 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 12:09:53,640 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 12:09:53,676 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-11-07 12:09:53,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-07 12:09:53,684 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 12:09:53,685 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 12:09:53,688 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 12:09:53,695 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 12:09:53,695 INFO L82 PathProgramCache]: Analyzing trace with hash 1622466265, now seen corresponding path program 1 times [2018-11-07 12:09:53,697 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 12:09:53,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 12:09:53,746 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 12:09:53,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 12:09:53,746 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 12:09:53,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 12:09:54,077 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-11-07 12:09:54,082 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 12:09:54,085 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 12:09:54,085 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 12:09:54,085 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 12:09:54,092 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 12:09:54,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 12:09:54,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 12:09:54,113 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-11-07 12:10:00,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 12:10:00,659 INFO L93 Difference]: Finished difference Result 1514 states and 2777 transitions. [2018-11-07 12:10:00,660 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 12:10:00,661 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-11-07 12:10:00,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 12:10:00,690 INFO L225 Difference]: With dead ends: 1514 [2018-11-07 12:10:00,690 INFO L226 Difference]: Without dead ends: 1070 [2018-11-07 12:10:00,708 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 [2018-11-07 12:10:00,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1070 states. [2018-11-07 12:10:00,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1070 to 1068. [2018-11-07 12:10:00,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1068 states. [2018-11-07 12:10:00,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1675 transitions. [2018-11-07 12:10:00,862 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1675 transitions. Word has length 15 [2018-11-07 12:10:00,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 12:10:00,863 INFO L480 AbstractCegarLoop]: Abstraction has 1068 states and 1675 transitions. [2018-11-07 12:10:00,863 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 12:10:00,863 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1675 transitions. [2018-11-07 12:10:00,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-11-07 12:10:00,867 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 12:10:00,868 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 12:10:00,868 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 12:10:00,869 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 12:10:00,869 INFO L82 PathProgramCache]: Analyzing trace with hash -1644253011, now seen corresponding path program 1 times [2018-11-07 12:10:00,869 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 12:10:00,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 12:10:00,873 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 12:10:00,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 12:10:00,873 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 12:10:00,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 12:10:01,137 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 12:10:01,137 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 12:10:01,137 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 12:10:01,138 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 12:10:01,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 12:10:01,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 12:10:01,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 12:10:01,140 INFO L87 Difference]: Start difference. First operand 1068 states and 1675 transitions. Second operand 3 states. [2018-11-07 12:10:04,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 12:10:04,997 INFO L93 Difference]: Finished difference Result 3059 states and 4890 transitions. [2018-11-07 12:10:04,998 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 12:10:04,998 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 85 [2018-11-07 12:10:04,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 12:10:05,013 INFO L225 Difference]: With dead ends: 3059 [2018-11-07 12:10:05,014 INFO L226 Difference]: Without dead ends: 1997 [2018-11-07 12:10:05,022 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 12:10:05,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1997 states. [2018-11-07 12:10:05,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1997 to 1995. [2018-11-07 12:10:05,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1995 states. [2018-11-07 12:10:05,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1995 states to 1995 states and 2748 transitions. [2018-11-07 12:10:05,102 INFO L78 Accepts]: Start accepts. Automaton has 1995 states and 2748 transitions. Word has length 85 [2018-11-07 12:10:05,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 12:10:05,103 INFO L480 AbstractCegarLoop]: Abstraction has 1995 states and 2748 transitions. [2018-11-07 12:10:05,103 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 12:10:05,103 INFO L276 IsEmpty]: Start isEmpty. Operand 1995 states and 2748 transitions. [2018-11-07 12:10:05,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2018-11-07 12:10:05,116 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 12:10:05,117 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 12:10:05,117 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 12:10:05,117 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 12:10:05,122 INFO L82 PathProgramCache]: Analyzing trace with hash -76739898, now seen corresponding path program 1 times [2018-11-07 12:10:05,122 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 12:10:05,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 12:10:05,123 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 12:10:05,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 12:10:05,124 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 12:10:05,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 12:10:05,539 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 17 proven. 77 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-07 12:10:05,540 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 12:10:05,540 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 12:10:05,541 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 196 with the following transitions: [2018-11-07 12:10:05,544 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [93], [95], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [629], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 12:10:05,592 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 12:10:05,593 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 12:10:06,100 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 12:10:11,861 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 12:10:11,863 INFO L272 AbstractInterpreter]: Visited 104 different actions 692 times. Merged at 5 different actions 30 times. Widened at 1 different actions 2 times. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 12:10:11,910 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 12:10:11,910 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 12:10:13,657 INFO L227 lantSequenceWeakener]: Weakened 38 states. On average, predicates are now at 77.51% of their original sizes. [2018-11-07 12:10:13,657 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 12:10:18,296 INFO L415 sIntCurrentIteration]: We unified 194 AI predicates to 194 [2018-11-07 12:10:18,296 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 12:10:18,297 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 12:10:18,297 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [6] total 23 [2018-11-07 12:10:18,298 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 12:10:18,299 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-11-07 12:10:18,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-11-07 12:10:18,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2018-11-07 12:10:18,300 INFO L87 Difference]: Start difference. First operand 1995 states and 2748 transitions. Second operand 19 states. Received shutdown request... [2018-11-07 12:13:54,960 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-11-07 12:13:54,961 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 12:13:54,966 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 12:13:54,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:13:54 BoogieIcfgContainer [2018-11-07 12:13:54,967 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 12:13:54,968 INFO L168 Benchmark]: Toolchain (without parser) took 250059.65 ms. Allocated memory was 1.5 GB in the beginning and 3.8 GB in the end (delta: 2.3 GB). Free memory was 1.4 GB in the beginning and 3.1 GB in the end (delta: -1.7 GB). Peak memory consumption was 631.5 MB. Max. memory is 7.1 GB. [2018-11-07 12:13:54,969 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 12:13:54,970 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1330.32 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: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. [2018-11-07 12:13:54,971 INFO L168 Benchmark]: Boogie Procedure Inliner took 238.70 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 742.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -888.2 MB). Peak memory consumption was 31.4 MB. Max. memory is 7.1 GB. [2018-11-07 12:13:54,972 INFO L168 Benchmark]: Boogie Preprocessor took 199.95 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2018-11-07 12:13:54,973 INFO L168 Benchmark]: RCFGBuilder took 6867.26 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 292.0 MB). Peak memory consumption was 292.0 MB. Max. memory is 7.1 GB. [2018-11-07 12:13:54,974 INFO L168 Benchmark]: TraceAbstraction took 241418.45 ms. Allocated memory was 2.3 GB in the beginning and 3.8 GB in the end (delta: 1.6 GB). Free memory was 1.9 GB in the beginning and 3.1 GB in the end (delta: -1.2 GB). Peak memory consumption was 365.1 MB. Max. memory is 7.1 GB. [2018-11-07 12:13:54,980 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1330.32 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: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 238.70 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 742.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -888.2 MB). Peak memory consumption was 31.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 199.95 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 6867.26 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 292.0 MB). Peak memory consumption was 292.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 241418.45 ms. Allocated memory was 2.3 GB in the beginning and 3.8 GB in the end (delta: 1.6 GB). Free memory was 1.9 GB in the beginning and 3.1 GB in the end (delta: -1.2 GB). Peak memory consumption was 365.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 31]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 31). Cancelled while BasicCegarLoop was constructing difference of abstraction (1995states) and FLOYD_HOARE automaton (currently 22 states, 19 states before enhancement),while ReachableStatesComputation was computing reachable states (2617 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 241.3s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 227.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 814 SDtfs, 4295 SDslu, 323 SDs, 0 SdLazy, 6002 SolverSat, 998 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 203.7s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 219 GetRequests, 128 SyntacticMatches, 57 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 746 ImplicationChecksByTransitivity, 5.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1995occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 6.3s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9962015461006946 AbsIntWeakeningRatio, 0.13402061855670103 AbsIntAvgWeakeningVarsNumRemoved, 7.402061855670103 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 295 NumberOfCodeBlocks, 295 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 292 ConstructedInterpolants, 0 QuantifiedInterpolants, 211532 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 31/108 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown