java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label37_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 00:09:37,962 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 00:09:37,965 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 00:09:37,978 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 00:09:37,978 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 00:09:37,979 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 00:09:37,981 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 00:09:37,982 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 00:09:37,984 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 00:09:37,985 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 00:09:37,986 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 00:09:37,986 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 00:09:37,987 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 00:09:37,988 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 00:09:37,989 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 00:09:37,990 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 00:09:37,991 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 00:09:37,993 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 00:09:37,995 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 00:09:37,996 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 00:09:37,997 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 00:09:37,999 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 00:09:38,001 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 00:09:38,001 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 00:09:38,001 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 00:09:38,002 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 00:09:38,003 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 00:09:38,004 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 00:09:38,005 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 00:09:38,006 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 00:09:38,006 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 00:09:38,007 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 00:09:38,007 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 00:09:38,007 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 00:09:38,009 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 00:09:38,009 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 00:09:38,010 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-27 00:09:38,025 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 00:09:38,026 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 00:09:38,027 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 00:09:38,027 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 00:09:38,027 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 00:09:38,027 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 00:09:38,027 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 00:09:38,028 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 00:09:38,028 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 00:09:38,028 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 00:09:38,028 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 00:09:38,028 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 00:09:38,029 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 00:09:38,029 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 00:09:38,029 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 00:09:38,030 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 00:09:38,030 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 00:09:38,030 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 00:09:38,030 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 00:09:38,031 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 00:09:38,031 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 00:09:38,031 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 00:09:38,031 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 00:09:38,031 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 00:09:38,032 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:09:38,032 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 00:09:38,032 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 00:09:38,032 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 00:09:38,032 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 00:09:38,033 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 00:09:38,033 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 00:09:38,033 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 00:09:38,033 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 00:09:38,034 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 00:09:38,105 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 00:09:38,127 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 00:09:38,133 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 00:09:38,135 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 00:09:38,135 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 00:09:38,136 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label37_false-unreach-call.c [2018-10-27 00:09:38,209 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3e383eec9/b2bae4b93eb64c09a3bf023819d82283/FLAG4b3a7fda4 [2018-10-27 00:09:38,928 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 00:09:38,929 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label37_false-unreach-call.c [2018-10-27 00:09:38,956 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3e383eec9/b2bae4b93eb64c09a3bf023819d82283/FLAG4b3a7fda4 [2018-10-27 00:09:38,970 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3e383eec9/b2bae4b93eb64c09a3bf023819d82283 [2018-10-27 00:09:38,982 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 00:09:38,984 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 00:09:38,985 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 00:09:38,985 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 00:09:38,989 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 00:09:38,991 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:09:38" (1/1) ... [2018-10-27 00:09:38,994 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bc5d6a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:09:38, skipping insertion in model container [2018-10-27 00:09:38,994 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:09:38" (1/1) ... [2018-10-27 00:09:39,005 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 00:09:39,101 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 00:09:40,009 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:09:40,015 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 00:09:40,258 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:09:40,282 INFO L193 MainTranslator]: Completed translation [2018-10-27 00:09:40,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:09:40 WrapperNode [2018-10-27 00:09:40,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 00:09:40,284 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 00:09:40,285 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 00:09:40,285 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 00:09:40,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:09:40" (1/1) ... [2018-10-27 00:09:40,345 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:09:40" (1/1) ... [2018-10-27 00:09:40,644 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 00:09:40,644 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 00:09:40,645 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 00:09:40,645 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 00:09:40,657 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:09:40" (1/1) ... [2018-10-27 00:09:40,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:09:40" (1/1) ... [2018-10-27 00:09:40,676 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:09:40" (1/1) ... [2018-10-27 00:09:40,677 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:09:40" (1/1) ... [2018-10-27 00:09:40,740 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:09:40" (1/1) ... [2018-10-27 00:09:40,778 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:09:40" (1/1) ... [2018-10-27 00:09:40,796 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:09:40" (1/1) ... [2018-10-27 00:09:40,810 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 00:09:40,811 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 00:09:40,811 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 00:09:40,812 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 00:09:40,813 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:09:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:09:40,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 00:09:40,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 00:09:40,886 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 00:09:40,886 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 00:09:40,886 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 00:09:40,886 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 00:09:40,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 00:09:40,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 00:09:40,887 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 00:09:40,887 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 00:09:47,181 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 00:09:47,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:09:47 BoogieIcfgContainer [2018-10-27 00:09:47,182 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 00:09:47,184 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 00:09:47,184 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 00:09:47,187 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 00:09:47,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:09:38" (1/3) ... [2018-10-27 00:09:47,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d2ffccb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:09:47, skipping insertion in model container [2018-10-27 00:09:47,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:09:40" (2/3) ... [2018-10-27 00:09:47,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d2ffccb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:09:47, skipping insertion in model container [2018-10-27 00:09:47,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:09:47" (3/3) ... [2018-10-27 00:09:47,192 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label37_false-unreach-call.c [2018-10-27 00:09:47,201 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 00:09:47,212 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 00:09:47,231 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 00:09:47,276 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 00:09:47,276 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 00:09:47,276 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 00:09:47,277 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 00:09:47,277 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 00:09:47,277 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 00:09:47,277 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 00:09:47,277 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 00:09:47,313 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-10-27 00:09:47,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-10-27 00:09:47,326 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:09:47,328 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] [2018-10-27 00:09:47,330 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:09:47,336 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:09:47,337 INFO L82 PathProgramCache]: Analyzing trace with hash 569642483, now seen corresponding path program 1 times [2018-10-27 00:09:47,340 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:09:47,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:09:47,397 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:09:47,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:09:47,398 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:09:47,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:09:47,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:09:47,730 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:09:47,731 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 00:09:47,731 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:09:47,737 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 00:09:47,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 00:09:47,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 00:09:47,753 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 4 states. [2018-10-27 00:09:54,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:09:54,618 INFO L93 Difference]: Finished difference Result 1513 states and 2838 transitions. [2018-10-27 00:09:54,619 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 00:09:54,620 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2018-10-27 00:09:54,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:09:54,651 INFO L225 Difference]: With dead ends: 1513 [2018-10-27 00:09:54,652 INFO L226 Difference]: Without dead ends: 1097 [2018-10-27 00:09:54,662 INFO L605 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 [2018-10-27 00:09:54,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2018-10-27 00:09:54,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 744. [2018-10-27 00:09:54,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-10-27 00:09:54,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1301 transitions. [2018-10-27 00:09:54,775 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1301 transitions. Word has length 27 [2018-10-27 00:09:54,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:09:54,776 INFO L481 AbstractCegarLoop]: Abstraction has 744 states and 1301 transitions. [2018-10-27 00:09:54,776 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 00:09:54,776 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1301 transitions. [2018-10-27 00:09:54,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2018-10-27 00:09:54,782 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:09:54,782 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-27 00:09:54,783 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:09:54,783 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:09:54,783 INFO L82 PathProgramCache]: Analyzing trace with hash 651092685, now seen corresponding path program 1 times [2018-10-27 00:09:54,784 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:09:54,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:09:54,785 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:09:54,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:09:54,785 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:09:54,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:09:55,151 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:09:55,151 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:09:55,152 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 00:09:55,152 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:09:55,154 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 00:09:55,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 00:09:55,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 00:09:55,155 INFO L87 Difference]: Start difference. First operand 744 states and 1301 transitions. Second operand 6 states. [2018-10-27 00:10:03,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:10:03,911 INFO L93 Difference]: Finished difference Result 2196 states and 3924 transitions. [2018-10-27 00:10:03,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 00:10:03,918 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 98 [2018-10-27 00:10:03,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:10:03,932 INFO L225 Difference]: With dead ends: 2196 [2018-10-27 00:10:03,932 INFO L226 Difference]: Without dead ends: 1458 [2018-10-27 00:10:03,936 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 00:10:03,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1458 states. [2018-10-27 00:10:04,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1458 to 1438. [2018-10-27 00:10:04,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1438 states. [2018-10-27 00:10:04,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1438 states to 1438 states and 2463 transitions. [2018-10-27 00:10:04,019 INFO L78 Accepts]: Start accepts. Automaton has 1438 states and 2463 transitions. Word has length 98 [2018-10-27 00:10:04,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:10:04,019 INFO L481 AbstractCegarLoop]: Abstraction has 1438 states and 2463 transitions. [2018-10-27 00:10:04,019 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 00:10:04,020 INFO L276 IsEmpty]: Start isEmpty. Operand 1438 states and 2463 transitions. [2018-10-27 00:10:04,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-10-27 00:10:04,028 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:10:04,028 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-27 00:10:04,029 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:10:04,029 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:10:04,029 INFO L82 PathProgramCache]: Analyzing trace with hash -134826328, now seen corresponding path program 1 times [2018-10-27 00:10:04,029 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:10:04,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:10:04,030 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:10:04,031 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:10:04,031 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:10:04,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:10:04,199 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:10:04,200 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:10:04,200 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 00:10:04,200 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:10:04,201 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 00:10:04,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 00:10:04,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 00:10:04,201 INFO L87 Difference]: Start difference. First operand 1438 states and 2463 transitions. Second operand 5 states. [2018-10-27 00:10:09,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:10:09,181 INFO L93 Difference]: Finished difference Result 3597 states and 6200 transitions. [2018-10-27 00:10:09,182 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 00:10:09,182 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 99 [2018-10-27 00:10:09,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:10:09,198 INFO L225 Difference]: With dead ends: 3597 [2018-10-27 00:10:09,198 INFO L226 Difference]: Without dead ends: 2165 [2018-10-27 00:10:09,204 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-27 00:10:09,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2165 states. [2018-10-27 00:10:09,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2165 to 2145. [2018-10-27 00:10:09,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2145 states. [2018-10-27 00:10:09,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2145 states to 2145 states and 3126 transitions. [2018-10-27 00:10:09,272 INFO L78 Accepts]: Start accepts. Automaton has 2145 states and 3126 transitions. Word has length 99 [2018-10-27 00:10:09,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:10:09,273 INFO L481 AbstractCegarLoop]: Abstraction has 2145 states and 3126 transitions. [2018-10-27 00:10:09,273 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 00:10:09,273 INFO L276 IsEmpty]: Start isEmpty. Operand 2145 states and 3126 transitions. [2018-10-27 00:10:09,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2018-10-27 00:10:09,277 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:10:09,277 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:10:09,278 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:10:09,278 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:10:09,278 INFO L82 PathProgramCache]: Analyzing trace with hash -712017120, now seen corresponding path program 1 times [2018-10-27 00:10:09,278 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:10:09,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:10:09,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:10:09,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:10:09,280 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:10:09,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:10:09,669 WARN L179 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 00:10:09,984 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:10:09,985 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:10:09,985 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 00:10:09,985 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:10:09,986 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 00:10:09,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 00:10:09,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 00:10:09,986 INFO L87 Difference]: Start difference. First operand 2145 states and 3126 transitions. Second operand 6 states. [2018-10-27 00:10:14,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:10:14,993 INFO L93 Difference]: Finished difference Result 7058 states and 10436 transitions. [2018-10-27 00:10:14,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 00:10:14,994 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 191 [2018-10-27 00:10:14,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:10:15,025 INFO L225 Difference]: With dead ends: 7058 [2018-10-27 00:10:15,025 INFO L226 Difference]: Without dead ends: 4919 [2018-10-27 00:10:15,045 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 00:10:15,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4919 states. [2018-10-27 00:10:15,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4919 to 4879. [2018-10-27 00:10:15,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4879 states. [2018-10-27 00:10:15,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4879 states to 4879 states and 6857 transitions. [2018-10-27 00:10:15,195 INFO L78 Accepts]: Start accepts. Automaton has 4879 states and 6857 transitions. Word has length 191 [2018-10-27 00:10:15,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:10:15,196 INFO L481 AbstractCegarLoop]: Abstraction has 4879 states and 6857 transitions. [2018-10-27 00:10:15,196 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 00:10:15,197 INFO L276 IsEmpty]: Start isEmpty. Operand 4879 states and 6857 transitions. [2018-10-27 00:10:15,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2018-10-27 00:10:15,200 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:10:15,200 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:10:15,200 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:10:15,200 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:10:15,201 INFO L82 PathProgramCache]: Analyzing trace with hash 918288008, now seen corresponding path program 1 times [2018-10-27 00:10:15,201 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:10:15,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:10:15,202 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:10:15,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:10:15,202 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:10:15,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:10:15,525 WARN L179 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 00:10:15,723 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:10:15,723 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:10:15,724 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 00:10:15,724 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:10:15,724 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 00:10:15,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 00:10:15,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 00:10:15,725 INFO L87 Difference]: Start difference. First operand 4879 states and 6857 transitions. Second operand 6 states. [2018-10-27 00:10:20,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:10:20,288 INFO L93 Difference]: Finished difference Result 12216 states and 17406 transitions. [2018-10-27 00:10:20,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 00:10:20,289 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 211 [2018-10-27 00:10:20,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:10:20,329 INFO L225 Difference]: With dead ends: 12216 [2018-10-27 00:10:20,329 INFO L226 Difference]: Without dead ends: 7343 [2018-10-27 00:10:20,360 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 00:10:20,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7343 states. [2018-10-27 00:10:20,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7343 to 7306. [2018-10-27 00:10:20,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7306 states. [2018-10-27 00:10:20,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7306 states to 7306 states and 9825 transitions. [2018-10-27 00:10:20,562 INFO L78 Accepts]: Start accepts. Automaton has 7306 states and 9825 transitions. Word has length 211 [2018-10-27 00:10:20,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:10:20,562 INFO L481 AbstractCegarLoop]: Abstraction has 7306 states and 9825 transitions. [2018-10-27 00:10:20,562 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 00:10:20,563 INFO L276 IsEmpty]: Start isEmpty. Operand 7306 states and 9825 transitions. [2018-10-27 00:10:20,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2018-10-27 00:10:20,566 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:10:20,566 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:10:20,567 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:10:20,567 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:10:20,567 INFO L82 PathProgramCache]: Analyzing trace with hash -910247708, now seen corresponding path program 1 times [2018-10-27 00:10:20,567 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:10:20,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:10:20,568 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:10:20,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:10:20,569 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:10:20,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:10:20,985 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 88 proven. 18 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-27 00:10:20,986 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 00:10:20,986 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 00:10:20,987 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 229 with the following transitions: [2018-10-27 00:10:20,993 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [295], [297], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [676], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-10-27 00:10:21,110 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 00:10:21,110 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 00:10:24,130 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 00:10:24,132 INFO L272 AbstractInterpreter]: Visited 135 different actions 135 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-27 00:10:24,148 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:10:24,148 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 00:10:26,286 INFO L227 lantSequenceWeakener]: Weakened 220 states. On average, predicates are now at 77.55% of their original sizes. [2018-10-27 00:10:26,287 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 00:10:26,617 INFO L415 sIntCurrentIteration]: We unified 227 AI predicates to 227 [2018-10-27 00:10:26,617 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 00:10:26,618 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 00:10:26,618 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [5] total 11 [2018-10-27 00:10:26,618 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:10:26,619 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-27 00:10:26,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-27 00:10:26,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-10-27 00:10:26,620 INFO L87 Difference]: Start difference. First operand 7306 states and 9825 transitions. Second operand 8 states. [2018-10-27 00:10:30,970 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 00:11:31,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:11:31,263 INFO L93 Difference]: Finished difference Result 14946 states and 20038 transitions. [2018-10-27 00:11:31,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-27 00:11:31,263 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 228 [2018-10-27 00:11:31,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:11:31,296 INFO L225 Difference]: With dead ends: 14946 [2018-10-27 00:11:31,296 INFO L226 Difference]: Without dead ends: 7646 [2018-10-27 00:11:31,319 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 229 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-27 00:11:31,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7646 states. [2018-10-27 00:11:31,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7646 to 7644. [2018-10-27 00:11:31,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7644 states. [2018-10-27 00:11:31,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7644 states to 7644 states and 10172 transitions. [2018-10-27 00:11:31,494 INFO L78 Accepts]: Start accepts. Automaton has 7644 states and 10172 transitions. Word has length 228 [2018-10-27 00:11:31,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:11:31,494 INFO L481 AbstractCegarLoop]: Abstraction has 7644 states and 10172 transitions. [2018-10-27 00:11:31,495 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-27 00:11:31,495 INFO L276 IsEmpty]: Start isEmpty. Operand 7644 states and 10172 transitions. [2018-10-27 00:11:31,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2018-10-27 00:11:31,499 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:11:31,499 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:11:31,500 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:11:31,500 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:11:31,500 INFO L82 PathProgramCache]: Analyzing trace with hash -23848184, now seen corresponding path program 1 times [2018-10-27 00:11:31,500 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:11:31,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:11:31,501 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:11:31,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:11:31,502 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:11:31,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:11:31,834 WARN L179 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 00:11:32,154 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-27 00:11:32,155 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 00:11:32,155 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 00:11:32,155 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 276 with the following transitions: [2018-10-27 00:11:32,156 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [295], [297], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-10-27 00:11:32,183 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 00:11:32,184 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 00:11:57,458 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 00:11:57,458 INFO L272 AbstractInterpreter]: Visited 255 different actions 752 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-27 00:11:57,468 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:11:57,468 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 00:12:00,634 INFO L227 lantSequenceWeakener]: Weakened 18 states. On average, predicates are now at 82.26% of their original sizes. [2018-10-27 00:12:00,634 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 00:12:08,823 INFO L415 sIntCurrentIteration]: We unified 274 AI predicates to 274 [2018-10-27 00:12:08,823 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 00:12:08,823 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 00:12:08,824 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [4] total 20 [2018-10-27 00:12:08,824 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:12:08,824 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-10-27 00:12:08,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-10-27 00:12:08,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2018-10-27 00:12:08,825 INFO L87 Difference]: Start difference. First operand 7644 states and 10172 transitions. Second operand 18 states. [2018-10-27 00:12:43,276 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-27 00:13:33,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-27 00:13:33,845 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 00:13:33,849 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 00:13:33,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 12:13:33 BoogieIcfgContainer [2018-10-27 00:13:33,850 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 00:13:33,851 INFO L168 Benchmark]: Toolchain (without parser) took 234867.91 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.9 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-10-27 00:13:33,852 INFO L168 Benchmark]: CDTParser took 0.20 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. [2018-10-27 00:13:33,853 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1298.53 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: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-10-27 00:13:33,854 INFO L168 Benchmark]: Boogie Procedure Inliner took 359.72 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 729.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -850.3 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. [2018-10-27 00:13:33,855 INFO L168 Benchmark]: Boogie Preprocessor took 166.30 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. [2018-10-27 00:13:33,856 INFO L168 Benchmark]: RCFGBuilder took 6371.41 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.9 GB in the end (delta: 256.3 MB). Peak memory consumption was 256.3 MB. Max. memory is 7.1 GB. [2018-10-27 00:13:33,856 INFO L168 Benchmark]: TraceAbstraction took 226666.47 ms. Allocated memory was 2.2 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 2.9 GB in the end (delta: -1.0 GB). Peak memory consumption was 920.3 MB. Max. memory is 7.1 GB. [2018-10-27 00:13:33,862 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1298.53 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: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 359.72 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 729.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -850.3 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 166.30 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6371.41 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.9 GB in the end (delta: 256.3 MB). Peak memory consumption was 256.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 226666.47 ms. Allocated memory was 2.2 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 2.9 GB in the end (delta: -1.0 GB). Peak memory consumption was 920.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 67]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 67). Cancelled while BasicCegarLoop was constructing difference of abstraction (7644states) and FLOYD_HOARE automaton (currently 10 states, 18 states before enhancement),while ReachableStatesComputation was computing reachable states (301 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 226.5s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 180.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 999 SDtfs, 8852 SDslu, 986 SDs, 0 SdLazy, 13058 SolverSat, 3722 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 86.5s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 554 GetRequests, 491 SyntacticMatches, 4 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 10.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7644occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 28.4s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9961417744221701 AbsIntWeakeningRatio, 0.09181636726546906 AbsIntAvgWeakeningVarsNumRemoved, 482.75249500998007 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 6 MinimizatonAttempts, 472 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 1129 NumberOfCodeBlocks, 1129 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1122 ConstructedInterpolants, 0 QuantifiedInterpolants, 936793 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 177/211 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown