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/Problem10_label25_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-24 00:53:54,283 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 00:53:54,285 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 00:53:54,298 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 00:53:54,298 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 00:53:54,299 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 00:53:54,301 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 00:53:54,302 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 00:53:54,304 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 00:53:54,305 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 00:53:54,306 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 00:53:54,306 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 00:53:54,307 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 00:53:54,308 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 00:53:54,309 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 00:53:54,310 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 00:53:54,311 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 00:53:54,313 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 00:53:54,315 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 00:53:54,316 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 00:53:54,318 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 00:53:54,319 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 00:53:54,321 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 00:53:54,321 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 00:53:54,322 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 00:53:54,322 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 00:53:54,323 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 00:53:54,324 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 00:53:54,325 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 00:53:54,326 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 00:53:54,326 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 00:53:54,327 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 00:53:54,327 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 00:53:54,327 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 00:53:54,328 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 00:53:54,329 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 00:53:54,329 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 00:53:54,350 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 00:53:54,350 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 00:53:54,351 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 00:53:54,351 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 00:53:54,352 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 00:53:54,352 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 00:53:54,352 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 00:53:54,352 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 00:53:54,352 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 00:53:54,353 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 00:53:54,353 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 00:53:54,353 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 00:53:54,354 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 00:53:54,354 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 00:53:54,354 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 00:53:54,354 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 00:53:54,355 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 00:53:54,355 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 00:53:54,355 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 00:53:54,355 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 00:53:54,355 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 00:53:54,356 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 00:53:54,356 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 00:53:54,356 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 00:53:54,356 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 00:53:54,356 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 00:53:54,357 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 00:53:54,357 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 00:53:54,357 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 00:53:54,357 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 00:53:54,357 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 00:53:54,358 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 00:53:54,358 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 00:53:54,358 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 00:53:54,419 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 00:53:54,440 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 00:53:54,445 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 00:53:54,447 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 00:53:54,447 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 00:53:54,448 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label25_true-unreach-call.c [2018-10-24 00:53:54,524 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/1867ba360/b46ddfaa1a0642b6b7cc480a6e807bf8/FLAGbe8a46fa5 [2018-10-24 00:53:55,144 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 00:53:55,145 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label25_true-unreach-call.c [2018-10-24 00:53:55,160 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/1867ba360/b46ddfaa1a0642b6b7cc480a6e807bf8/FLAGbe8a46fa5 [2018-10-24 00:53:55,177 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/1867ba360/b46ddfaa1a0642b6b7cc480a6e807bf8 [2018-10-24 00:53:55,189 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 00:53:55,191 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 00:53:55,192 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 00:53:55,192 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 00:53:55,197 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 00:53:55,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:53:55" (1/1) ... [2018-10-24 00:53:55,202 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33fe9958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:53:55, skipping insertion in model container [2018-10-24 00:53:55,203 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:53:55" (1/1) ... [2018-10-24 00:53:55,214 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 00:53:55,306 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 00:53:55,838 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 00:53:55,847 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 00:53:55,985 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 00:53:56,004 INFO L193 MainTranslator]: Completed translation [2018-10-24 00:53:56,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:53:56 WrapperNode [2018-10-24 00:53:56,005 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 00:53:56,007 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 00:53:56,007 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 00:53:56,007 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 00:53:56,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:53:56" (1/1) ... [2018-10-24 00:53:56,055 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:53:56" (1/1) ... [2018-10-24 00:53:56,276 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 00:53:56,277 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 00:53:56,277 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 00:53:56,277 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 00:53:56,289 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:53:56" (1/1) ... [2018-10-24 00:53:56,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:53:56" (1/1) ... [2018-10-24 00:53:56,309 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:53:56" (1/1) ... [2018-10-24 00:53:56,310 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:53:56" (1/1) ... [2018-10-24 00:53:56,361 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:53:56" (1/1) ... [2018-10-24 00:53:56,388 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:53:56" (1/1) ... [2018-10-24 00:53:56,403 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:53:56" (1/1) ... [2018-10-24 00:53:56,417 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 00:53:56,418 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 00:53:56,418 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 00:53:56,418 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 00:53:56,419 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:53:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 00:53:56,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 00:53:56,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 00:53:56,501 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 00:53:56,502 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 00:53:56,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 00:53:56,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 00:53:56,504 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 00:53:56,504 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 00:53:59,806 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 00:53:59,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:53:59 BoogieIcfgContainer [2018-10-24 00:53:59,808 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 00:53:59,809 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 00:53:59,809 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 00:53:59,813 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 00:53:59,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:53:55" (1/3) ... [2018-10-24 00:53:59,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7982eb51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:53:59, skipping insertion in model container [2018-10-24 00:53:59,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:53:56" (2/3) ... [2018-10-24 00:53:59,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7982eb51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:53:59, skipping insertion in model container [2018-10-24 00:53:59,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:53:59" (3/3) ... [2018-10-24 00:53:59,817 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label25_true-unreach-call.c [2018-10-24 00:53:59,828 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 00:53:59,838 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 00:53:59,858 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 00:53:59,898 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 00:53:59,899 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 00:53:59,899 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 00:53:59,899 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 00:53:59,899 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 00:53:59,899 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 00:53:59,900 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 00:53:59,900 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 00:53:59,928 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-10-24 00:53:59,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-10-24 00:53:59,941 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 00:53:59,942 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 00:53:59,945 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 00:53:59,952 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 00:53:59,953 INFO L82 PathProgramCache]: Analyzing trace with hash 382760497, now seen corresponding path program 1 times [2018-10-24 00:53:59,956 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 00:54:00,019 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 00:54:00,020 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 00:54:00,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 00:54:00,020 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 00:54:00,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 00:54:00,540 WARN L179 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 00:54:00,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 00:54:00,689 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 00:54:00,689 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 00:54:00,689 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 00:54:00,696 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 00:54:00,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 00:54:00,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 00:54:00,718 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 3 states. [2018-10-24 00:54:02,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 00:54:02,495 INFO L93 Difference]: Finished difference Result 574 states and 992 transitions. [2018-10-24 00:54:02,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 00:54:02,498 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2018-10-24 00:54:02,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 00:54:02,516 INFO L225 Difference]: With dead ends: 574 [2018-10-24 00:54:02,517 INFO L226 Difference]: Without dead ends: 356 [2018-10-24 00:54:02,524 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 00:54:02,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-10-24 00:54:02,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2018-10-24 00:54:02,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-10-24 00:54:02,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 592 transitions. [2018-10-24 00:54:02,608 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 592 transitions. Word has length 71 [2018-10-24 00:54:02,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 00:54:02,608 INFO L481 AbstractCegarLoop]: Abstraction has 356 states and 592 transitions. [2018-10-24 00:54:02,609 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 00:54:02,609 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 592 transitions. [2018-10-24 00:54:02,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-10-24 00:54:02,618 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 00:54:02,619 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 00:54:02,619 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 00:54:02,619 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 00:54:02,620 INFO L82 PathProgramCache]: Analyzing trace with hash -1446129720, now seen corresponding path program 1 times [2018-10-24 00:54:02,620 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 00:54:02,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 00:54:02,621 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 00:54:02,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 00:54:02,622 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 00:54:02,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 00:54:02,990 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 00:54:02,990 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 00:54:02,990 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 00:54:02,991 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 00:54:02,993 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 00:54:02,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 00:54:02,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 00:54:02,994 INFO L87 Difference]: Start difference. First operand 356 states and 592 transitions. Second operand 6 states. [2018-10-24 00:54:05,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 00:54:05,502 INFO L93 Difference]: Finished difference Result 1002 states and 1689 transitions. [2018-10-24 00:54:05,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 00:54:05,503 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 141 [2018-10-24 00:54:05,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 00:54:05,511 INFO L225 Difference]: With dead ends: 1002 [2018-10-24 00:54:05,511 INFO L226 Difference]: Without dead ends: 652 [2018-10-24 00:54:05,515 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 [2018-10-24 00:54:05,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2018-10-24 00:54:05,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 640. [2018-10-24 00:54:05,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 640 states. [2018-10-24 00:54:05,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 960 transitions. [2018-10-24 00:54:05,565 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 960 transitions. Word has length 141 [2018-10-24 00:54:05,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 00:54:05,566 INFO L481 AbstractCegarLoop]: Abstraction has 640 states and 960 transitions. [2018-10-24 00:54:05,566 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 00:54:05,566 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 960 transitions. [2018-10-24 00:54:05,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-10-24 00:54:05,570 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 00:54:05,571 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 00:54:05,571 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 00:54:05,571 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 00:54:05,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1467562684, now seen corresponding path program 1 times [2018-10-24 00:54:05,572 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 00:54:05,573 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 00:54:05,573 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 00:54:05,573 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 00:54:05,574 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 00:54:05,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 00:54:05,868 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 00:54:05,868 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 00:54:05,869 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 00:54:05,869 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 00:54:05,870 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 00:54:05,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 00:54:05,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 00:54:05,873 INFO L87 Difference]: Start difference. First operand 640 states and 960 transitions. Second operand 4 states. [2018-10-24 00:54:09,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 00:54:09,499 INFO L93 Difference]: Finished difference Result 2128 states and 3336 transitions. [2018-10-24 00:54:09,500 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 00:54:09,500 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 151 [2018-10-24 00:54:09,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 00:54:09,512 INFO L225 Difference]: With dead ends: 2128 [2018-10-24 00:54:09,512 INFO L226 Difference]: Without dead ends: 904 [2018-10-24 00:54:09,522 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 00:54:09,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 904 states. [2018-10-24 00:54:09,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 904 to 904. [2018-10-24 00:54:09,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 904 states. [2018-10-24 00:54:09,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 1277 transitions. [2018-10-24 00:54:09,583 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 1277 transitions. Word has length 151 [2018-10-24 00:54:09,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 00:54:09,583 INFO L481 AbstractCegarLoop]: Abstraction has 904 states and 1277 transitions. [2018-10-24 00:54:09,584 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 00:54:09,584 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 1277 transitions. [2018-10-24 00:54:09,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2018-10-24 00:54:09,588 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 00:54:09,590 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 00:54:09,590 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 00:54:09,590 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 00:54:09,590 INFO L82 PathProgramCache]: Analyzing trace with hash -774507349, now seen corresponding path program 1 times [2018-10-24 00:54:09,591 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 00:54:09,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 00:54:09,592 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 00:54:09,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 00:54:09,592 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 00:54:09,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 00:54:09,953 WARN L179 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 00:54:10,389 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 00:54:10,390 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 00:54:10,390 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 00:54:10,390 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 00:54:10,391 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 00:54:10,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 00:54:10,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 00:54:10,392 INFO L87 Difference]: Start difference. First operand 904 states and 1277 transitions. Second operand 6 states. [2018-10-24 00:54:11,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 00:54:11,721 INFO L93 Difference]: Finished difference Result 2127 states and 3078 transitions. [2018-10-24 00:54:11,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 00:54:11,722 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 194 [2018-10-24 00:54:11,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 00:54:11,731 INFO L225 Difference]: With dead ends: 2127 [2018-10-24 00:54:11,731 INFO L226 Difference]: Without dead ends: 1229 [2018-10-24 00:54:11,736 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 00:54:11,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2018-10-24 00:54:11,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1208. [2018-10-24 00:54:11,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1208 states. [2018-10-24 00:54:11,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1208 states to 1208 states and 1646 transitions. [2018-10-24 00:54:11,775 INFO L78 Accepts]: Start accepts. Automaton has 1208 states and 1646 transitions. Word has length 194 [2018-10-24 00:54:11,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 00:54:11,776 INFO L481 AbstractCegarLoop]: Abstraction has 1208 states and 1646 transitions. [2018-10-24 00:54:11,776 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 00:54:11,776 INFO L276 IsEmpty]: Start isEmpty. Operand 1208 states and 1646 transitions. [2018-10-24 00:54:11,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2018-10-24 00:54:11,782 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 00:54:11,782 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 00:54:11,783 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 00:54:11,783 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 00:54:11,783 INFO L82 PathProgramCache]: Analyzing trace with hash 1703489504, now seen corresponding path program 1 times [2018-10-24 00:54:11,783 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 00:54:11,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 00:54:11,785 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 00:54:11,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 00:54:11,785 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 00:54:11,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 00:54:12,017 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 128 proven. 78 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 00:54:12,018 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 00:54:12,018 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 00:54:12,019 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 243 with the following transitions: [2018-10-24 00:54:12,021 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [469], [471], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [546], [547], [551], [555], [559], [563], [566], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-24 00:54:12,092 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 00:54:12,093 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 00:54:14,877 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 00:54:14,878 INFO L272 AbstractInterpreter]: Visited 93 different actions 93 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-24 00:54:14,890 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 00:54:14,891 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 00:54:19,467 INFO L232 lantSequenceWeakener]: Weakened 221 states. On average, predicates are now at 74.05% of their original sizes. [2018-10-24 00:54:19,467 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 00:54:24,501 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 00:54:24,502 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 00:54:24,502 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [5] total 13 [2018-10-24 00:54:24,502 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 00:54:24,503 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-24 00:54:24,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-24 00:54:24,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-10-24 00:54:24,504 INFO L87 Difference]: Start difference. First operand 1208 states and 1646 transitions. Second operand 10 states. [2018-10-24 00:54:36,296 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 00:55:11,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 00:55:11,816 INFO L93 Difference]: Finished difference Result 2559 states and 3488 transitions. [2018-10-24 00:55:11,816 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-24 00:55:11,817 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 242 [2018-10-24 00:55:11,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 00:55:11,823 INFO L225 Difference]: With dead ends: 2559 [2018-10-24 00:55:11,824 INFO L226 Difference]: Without dead ends: 1357 [2018-10-24 00:55:11,828 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 245 GetRequests, 204 SyntacticMatches, 29 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-10-24 00:55:11,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1357 states. [2018-10-24 00:55:11,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1357 to 1352. [2018-10-24 00:55:11,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1352 states. [2018-10-24 00:55:11,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 1796 transitions. [2018-10-24 00:55:11,906 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 1796 transitions. Word has length 242 [2018-10-24 00:55:11,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 00:55:11,906 INFO L481 AbstractCegarLoop]: Abstraction has 1352 states and 1796 transitions. [2018-10-24 00:55:11,906 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-24 00:55:11,906 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 1796 transitions. [2018-10-24 00:55:11,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2018-10-24 00:55:11,916 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 00:55:11,916 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-24 00:55:11,917 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 00:55:11,917 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 00:55:11,917 INFO L82 PathProgramCache]: Analyzing trace with hash -677086258, now seen corresponding path program 1 times [2018-10-24 00:55:11,917 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 00:55:11,918 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 00:55:11,918 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 00:55:11,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 00:55:11,919 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 00:55:11,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 00:55:12,436 WARN L179 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-10-24 00:55:12,612 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 00:55:12,833 WARN L179 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 7 [2018-10-24 00:55:13,104 WARN L179 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 20 [2018-10-24 00:55:13,747 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 266 proven. 82 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-10-24 00:55:13,747 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 00:55:13,747 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 00:55:13,747 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 314 with the following transitions: [2018-10-24 00:55:13,748 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [469], [471], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [546], [547], [551], [555], [559], [563], [566], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-24 00:55:13,754 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 00:55:13,755 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 00:55:15,060 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 00:55:27,107 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 00:55:27,108 INFO L272 AbstractInterpreter]: Visited 97 different actions 552 times. Merged at 5 different actions 25 times. Widened at 1 different actions 1 times. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 00:55:27,122 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 00:55:27,122 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 00:55:31,415 INFO L232 lantSequenceWeakener]: Weakened 221 states. On average, predicates are now at 74.05% of their original sizes. [2018-10-24 00:55:31,415 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 00:55:47,987 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 00:55:47,987 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 00:55:47,988 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [14] total 29 [2018-10-24 00:55:47,988 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 00:55:47,989 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-10-24 00:55:47,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-10-24 00:55:47,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2018-10-24 00:55:47,990 INFO L87 Difference]: Start difference. First operand 1352 states and 1796 transitions. Second operand 17 states. [2018-10-24 00:57:41,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 00:57:41,895 INFO L93 Difference]: Finished difference Result 3015 states and 4056 transitions. [2018-10-24 00:57:41,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-10-24 00:57:41,896 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 313 [2018-10-24 00:57:41,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 00:57:41,905 INFO L225 Difference]: With dead ends: 3015 [2018-10-24 00:57:41,905 INFO L226 Difference]: Without dead ends: 1813 [2018-10-24 00:57:41,910 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 320 GetRequests, 268 SyntacticMatches, 29 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 18.1s TimeCoverageRelationStatistics Valid=134, Invalid=466, Unknown=0, NotChecked=0, Total=600 [2018-10-24 00:57:41,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1813 states. [2018-10-24 00:57:42,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1813 to 1726. [2018-10-24 00:57:42,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1726 states. [2018-10-24 00:57:42,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1726 states to 1726 states and 2209 transitions. [2018-10-24 00:57:42,044 INFO L78 Accepts]: Start accepts. Automaton has 1726 states and 2209 transitions. Word has length 313 [2018-10-24 00:57:42,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 00:57:42,045 INFO L481 AbstractCegarLoop]: Abstraction has 1726 states and 2209 transitions. [2018-10-24 00:57:42,045 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-10-24 00:57:42,045 INFO L276 IsEmpty]: Start isEmpty. Operand 1726 states and 2209 transitions. [2018-10-24 00:57:42,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2018-10-24 00:57:42,056 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 00:57:42,056 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-24 00:57:42,057 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 00:57:42,057 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 00:57:42,057 INFO L82 PathProgramCache]: Analyzing trace with hash 765572205, now seen corresponding path program 1 times [2018-10-24 00:57:42,057 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 00:57:42,058 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 00:57:42,058 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 00:57:42,059 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 00:57:42,059 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 00:57:42,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 00:57:42,698 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-10-24 00:57:43,006 WARN L179 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 21 [2018-10-24 00:57:43,269 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 283 proven. 158 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 00:57:43,270 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 00:57:43,270 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 00:57:43,270 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 359 with the following transitions: [2018-10-24 00:57:43,271 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [469], [471], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [546], [547], [551], [555], [559], [563], [566], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-24 00:57:43,276 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 00:57:43,276 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-10-24 00:57:44,729 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-10-24 00:57:44,730 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-10-24 00:57:44,731 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-24 00:57:44,731 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 00:57:44,731 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 00:57:44,743 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 00:57:44,743 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 00:57:44,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 00:57:44,884 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 00:57:44,899 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-24 00:57:45,100 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 00:57:45,101 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 00:57:45,107 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 00:57:45,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 12:57:45 BoogieIcfgContainer [2018-10-24 00:57:45,108 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 00:57:45,108 INFO L168 Benchmark]: Toolchain (without parser) took 229918.70 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 2.7 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-10-24 00:57:45,110 INFO L168 Benchmark]: CDTParser took 0.23 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. [2018-10-24 00:57:45,110 INFO L168 Benchmark]: CACSL2BoogieTranslator took 813.68 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-10-24 00:57:45,111 INFO L168 Benchmark]: Boogie Procedure Inliner took 269.69 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 682.6 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -754.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB. [2018-10-24 00:57:45,112 INFO L168 Benchmark]: Boogie Preprocessor took 140.84 ms. Allocated memory is still 2.2 GB. Free memory is still 2.1 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 00:57:45,112 INFO L168 Benchmark]: RCFGBuilder took 3389.86 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 111.8 MB). Peak memory consumption was 111.8 MB. Max. memory is 7.1 GB. [2018-10-24 00:57:45,113 INFO L168 Benchmark]: TraceAbstraction took 225298.75 ms. Allocated memory was 2.2 GB in the beginning and 4.0 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 2.7 GB in the end (delta: -697.6 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-10-24 00:57:45,119 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 813.68 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 269.69 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 682.6 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -754.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 140.84 ms. Allocated memory is still 2.2 GB. Free memory is still 2.1 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 3389.86 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 111.8 MB). Peak memory consumption was 111.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 225298.75 ms. Allocated memory was 2.2 GB in the beginning and 4.0 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 2.7 GB in the end (delta: -697.6 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 196]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 196). Cancelled while BasicCegarLoop was analyzing trace of length 359 with TraceHistMax 4,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 12 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 225.2s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 170.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 659 SDtfs, 4069 SDslu, 611 SDs, 0 SdLazy, 5261 SolverSat, 989 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 87.9s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 595 GetRequests, 481 SyntacticMatches, 62 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 470 ImplicationChecksByTransitivity, 24.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1726occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 17.7s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.9955807584453705 AbsIntWeakeningRatio, 0.10488245931283906 AbsIntAvgWeakeningVarsNumRemoved, 84.34719710669077 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 6 MinimizatonAttempts, 125 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 1112 NumberOfCodeBlocks, 1112 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1106 ConstructedInterpolants, 0 QuantifiedInterpolants, 1448293 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 660/820 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown