java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem12_label16_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 03:07:20,336 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 03:07:20,338 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 03:07:20,350 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 03:07:20,351 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 03:07:20,352 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 03:07:20,356 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 03:07:20,358 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 03:07:20,359 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 03:07:20,363 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 03:07:20,364 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 03:07:20,364 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 03:07:20,365 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 03:07:20,366 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 03:07:20,369 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 03:07:20,370 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 03:07:20,371 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 03:07:20,380 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 03:07:20,385 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 03:07:20,390 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 03:07:20,391 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 03:07:20,392 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 03:07:20,397 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 03:07:20,398 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 03:07:20,398 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 03:07:20,399 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 03:07:20,400 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 03:07:20,401 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 03:07:20,407 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 03:07:20,408 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 03:07:20,409 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 03:07:20,409 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 03:07:20,409 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 03:07:20,410 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 03:07:20,411 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 03:07:20,411 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 03:07:20,411 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-07 03:07:20,429 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 03:07:20,429 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 03:07:20,430 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 03:07:20,430 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 03:07:20,430 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 03:07:20,431 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 03:07:20,431 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 03:07:20,431 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 03:07:20,431 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 03:07:20,431 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 03:07:20,432 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 03:07:20,432 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 03:07:20,432 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 03:07:20,433 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 03:07:20,433 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 03:07:20,433 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 03:07:20,433 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 03:07:20,433 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 03:07:20,434 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 03:07:20,434 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 03:07:20,434 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 03:07:20,434 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 03:07:20,434 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 03:07:20,435 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 03:07:20,435 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 03:07:20,435 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 03:07:20,435 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 03:07:20,435 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 03:07:20,436 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 03:07:20,436 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 03:07:20,436 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 03:07:20,436 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 03:07:20,436 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 03:07:20,437 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 03:07:20,483 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 03:07:20,498 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 03:07:20,502 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 03:07:20,504 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 03:07:20,504 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 03:07:20,505 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label16_true-unreach-call.c [2018-11-07 03:07:20,564 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a668bf8a/68fd4d0ca2b54dc485703e1dbc1bc02b/FLAGbd1e1c699 [2018-11-07 03:07:21,342 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 03:07:21,343 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label16_true-unreach-call.c [2018-11-07 03:07:21,375 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a668bf8a/68fd4d0ca2b54dc485703e1dbc1bc02b/FLAGbd1e1c699 [2018-11-07 03:07:21,393 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a668bf8a/68fd4d0ca2b54dc485703e1dbc1bc02b [2018-11-07 03:07:21,407 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 03:07:21,410 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 03:07:21,411 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 03:07:21,411 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 03:07:21,418 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 03:07:21,419 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:07:21" (1/1) ... [2018-11-07 03:07:21,424 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60826613 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:07:21, skipping insertion in model container [2018-11-07 03:07:21,424 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:07:21" (1/1) ... [2018-11-07 03:07:21,436 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 03:07:21,598 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 03:07:22,875 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 03:07:22,880 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 03:07:23,503 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 03:07:23,539 INFO L193 MainTranslator]: Completed translation [2018-11-07 03:07:23,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:07:23 WrapperNode [2018-11-07 03:07:23,540 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 03:07:23,541 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 03:07:23,541 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 03:07:23,542 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 03:07:23,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:07:23" (1/1) ... [2018-11-07 03:07:23,933 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:07:23" (1/1) ... [2018-11-07 03:07:23,943 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 03:07:23,943 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 03:07:23,943 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 03:07:23,944 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 03:07:23,955 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:07:23" (1/1) ... [2018-11-07 03:07:23,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:07:23" (1/1) ... [2018-11-07 03:07:23,998 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:07:23" (1/1) ... [2018-11-07 03:07:23,998 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:07:23" (1/1) ... [2018-11-07 03:07:24,112 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:07:23" (1/1) ... [2018-11-07 03:07:24,157 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:07:23" (1/1) ... [2018-11-07 03:07:24,190 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:07:23" (1/1) ... [2018-11-07 03:07:24,230 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 03:07:24,231 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 03:07:24,231 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 03:07:24,231 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 03:07:24,233 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:07:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 03:07:24,301 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 03:07:24,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 03:07:24,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 03:07:24,302 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-07 03:07:24,302 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-07 03:07:24,302 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 03:07:24,302 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 03:07:24,302 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 03:07:24,303 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 03:07:24,303 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 03:07:24,303 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 03:07:24,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 03:07:24,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 03:07:24,305 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 03:07:24,305 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 03:07:34,322 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 03:07:34,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:07:34 BoogieIcfgContainer [2018-11-07 03:07:34,323 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 03:07:34,324 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 03:07:34,324 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 03:07:34,328 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 03:07:34,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:07:21" (1/3) ... [2018-11-07 03:07:34,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@446e981b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:07:34, skipping insertion in model container [2018-11-07 03:07:34,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:07:23" (2/3) ... [2018-11-07 03:07:34,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@446e981b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:07:34, skipping insertion in model container [2018-11-07 03:07:34,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:07:34" (3/3) ... [2018-11-07 03:07:34,331 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label16_true-unreach-call.c [2018-11-07 03:07:34,342 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 03:07:34,352 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 03:07:34,371 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 03:07:34,420 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 03:07:34,420 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 03:07:34,420 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 03:07:34,420 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 03:07:34,420 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 03:07:34,421 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 03:07:34,421 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 03:07:34,421 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 03:07:34,463 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-11-07 03:07:34,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-11-07 03:07:34,474 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:07:34,476 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, 1] [2018-11-07 03:07:34,478 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:07:34,485 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:07:34,485 INFO L82 PathProgramCache]: Analyzing trace with hash -710124980, now seen corresponding path program 1 times [2018-11-07 03:07:34,488 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:07:34,547 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:07:34,548 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:07:34,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:07:34,548 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:07:34,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:07:34,989 WARN L179 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 03:07:35,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:07:35,296 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:07:35,296 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 03:07:35,296 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:07:35,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 03:07:35,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 03:07:35,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 03:07:35,324 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 3 states. [2018-11-07 03:07:42,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:07:42,842 INFO L93 Difference]: Finished difference Result 2446 states and 4700 transitions. [2018-11-07 03:07:42,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 03:07:42,844 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2018-11-07 03:07:42,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:07:42,878 INFO L225 Difference]: With dead ends: 2446 [2018-11-07 03:07:42,878 INFO L226 Difference]: Without dead ends: 1604 [2018-11-07 03:07:42,893 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 03:07:42,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2018-11-07 03:07:43,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1604. [2018-11-07 03:07:43,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-11-07 03:07:43,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2969 transitions. [2018-11-07 03:07:43,057 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2969 transitions. Word has length 72 [2018-11-07 03:07:43,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:07:43,058 INFO L480 AbstractCegarLoop]: Abstraction has 1604 states and 2969 transitions. [2018-11-07 03:07:43,058 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 03:07:43,058 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2969 transitions. [2018-11-07 03:07:43,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-11-07 03:07:43,067 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:07:43,068 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 03:07:43,068 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:07:43,068 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:07:43,069 INFO L82 PathProgramCache]: Analyzing trace with hash -377303342, now seen corresponding path program 1 times [2018-11-07 03:07:43,069 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:07:43,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:07:43,070 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:07:43,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:07:43,071 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:07:43,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:07:43,346 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:07:43,346 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:07:43,346 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 03:07:43,347 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:07:43,350 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 03:07:43,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 03:07:43,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 03:07:43,350 INFO L87 Difference]: Start difference. First operand 1604 states and 2969 transitions. Second operand 5 states. [2018-11-07 03:07:53,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:07:53,878 INFO L93 Difference]: Finished difference Result 4038 states and 7427 transitions. [2018-11-07 03:07:53,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 03:07:53,880 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 146 [2018-11-07 03:07:53,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:07:53,895 INFO L225 Difference]: With dead ends: 4038 [2018-11-07 03:07:53,896 INFO L226 Difference]: Without dead ends: 2440 [2018-11-07 03:07:53,901 INFO L604 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 [2018-11-07 03:07:53,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2440 states. [2018-11-07 03:07:53,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2440 to 2413. [2018-11-07 03:07:53,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2413 states. [2018-11-07 03:07:53,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2413 states to 2413 states and 4141 transitions. [2018-11-07 03:07:53,973 INFO L78 Accepts]: Start accepts. Automaton has 2413 states and 4141 transitions. Word has length 146 [2018-11-07 03:07:53,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:07:53,974 INFO L480 AbstractCegarLoop]: Abstraction has 2413 states and 4141 transitions. [2018-11-07 03:07:53,974 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 03:07:53,974 INFO L276 IsEmpty]: Start isEmpty. Operand 2413 states and 4141 transitions. [2018-11-07 03:07:53,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-11-07 03:07:53,979 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:07:53,979 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 03:07:53,979 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:07:53,980 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:07:53,980 INFO L82 PathProgramCache]: Analyzing trace with hash 719530862, now seen corresponding path program 1 times [2018-11-07 03:07:53,980 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:07:53,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:07:53,981 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:07:53,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:07:53,981 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:07:54,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:07:54,158 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:07:54,158 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:07:54,158 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 03:07:54,158 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:07:54,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 03:07:54,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 03:07:54,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 03:07:54,160 INFO L87 Difference]: Start difference. First operand 2413 states and 4141 transitions. Second operand 4 states. [2018-11-07 03:08:02,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:08:02,774 INFO L93 Difference]: Finished difference Result 9492 states and 16754 transitions. [2018-11-07 03:08:02,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 03:08:02,775 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2018-11-07 03:08:02,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:08:02,830 INFO L225 Difference]: With dead ends: 9492 [2018-11-07 03:08:02,831 INFO L226 Difference]: Without dead ends: 7085 [2018-11-07 03:08:02,845 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 03:08:02,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7085 states. [2018-11-07 03:08:03,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7085 to 7085. [2018-11-07 03:08:03,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7085 states. [2018-11-07 03:08:03,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7085 states to 7085 states and 11749 transitions. [2018-11-07 03:08:03,071 INFO L78 Accepts]: Start accepts. Automaton has 7085 states and 11749 transitions. Word has length 148 [2018-11-07 03:08:03,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:08:03,072 INFO L480 AbstractCegarLoop]: Abstraction has 7085 states and 11749 transitions. [2018-11-07 03:08:03,072 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 03:08:03,072 INFO L276 IsEmpty]: Start isEmpty. Operand 7085 states and 11749 transitions. [2018-11-07 03:08:03,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-11-07 03:08:03,077 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:08:03,078 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, 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] [2018-11-07 03:08:03,078 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:08:03,078 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:08:03,079 INFO L82 PathProgramCache]: Analyzing trace with hash -1702645438, now seen corresponding path program 1 times [2018-11-07 03:08:03,079 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:08:03,080 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:08:03,080 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:08:03,080 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:08:03,080 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:08:03,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:08:03,519 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:08:03,519 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:08:03,520 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 03:08:03,520 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:08:03,520 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 03:08:03,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 03:08:03,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 03:08:03,521 INFO L87 Difference]: Start difference. First operand 7085 states and 11749 transitions. Second operand 6 states. [2018-11-07 03:08:12,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:08:12,826 INFO L93 Difference]: Finished difference Result 15965 states and 26509 transitions. [2018-11-07 03:08:12,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 03:08:12,827 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 154 [2018-11-07 03:08:12,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:08:12,882 INFO L225 Difference]: With dead ends: 15965 [2018-11-07 03:08:12,882 INFO L226 Difference]: Without dead ends: 8886 [2018-11-07 03:08:12,919 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 03:08:12,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8886 states. [2018-11-07 03:08:13,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8886 to 8848. [2018-11-07 03:08:13,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8848 states. [2018-11-07 03:08:13,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8848 states to 8848 states and 14005 transitions. [2018-11-07 03:08:13,380 INFO L78 Accepts]: Start accepts. Automaton has 8848 states and 14005 transitions. Word has length 154 [2018-11-07 03:08:13,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:08:13,381 INFO L480 AbstractCegarLoop]: Abstraction has 8848 states and 14005 transitions. [2018-11-07 03:08:13,381 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 03:08:13,381 INFO L276 IsEmpty]: Start isEmpty. Operand 8848 states and 14005 transitions. [2018-11-07 03:08:13,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2018-11-07 03:08:13,386 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:08:13,386 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, 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] [2018-11-07 03:08:13,386 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:08:13,388 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:08:13,388 INFO L82 PathProgramCache]: Analyzing trace with hash -901803398, now seen corresponding path program 1 times [2018-11-07 03:08:13,388 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:08:13,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:08:13,389 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:08:13,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:08:13,389 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:08:13,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:08:13,720 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:08:13,720 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:08:13,721 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 03:08:13,721 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:08:13,721 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 03:08:13,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 03:08:13,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-07 03:08:13,722 INFO L87 Difference]: Start difference. First operand 8848 states and 14005 transitions. Second operand 5 states. [2018-11-07 03:08:20,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:08:20,539 INFO L93 Difference]: Finished difference Result 26993 states and 44170 transitions. [2018-11-07 03:08:20,543 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 03:08:20,543 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 158 [2018-11-07 03:08:20,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:08:20,624 INFO L225 Difference]: With dead ends: 26993 [2018-11-07 03:08:20,625 INFO L226 Difference]: Without dead ends: 18151 [2018-11-07 03:08:20,663 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 03:08:20,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18151 states. [2018-11-07 03:08:21,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18151 to 17983. [2018-11-07 03:08:21,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17983 states. [2018-11-07 03:08:21,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17983 states to 17983 states and 26797 transitions. [2018-11-07 03:08:21,111 INFO L78 Accepts]: Start accepts. Automaton has 17983 states and 26797 transitions. Word has length 158 [2018-11-07 03:08:21,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:08:21,112 INFO L480 AbstractCegarLoop]: Abstraction has 17983 states and 26797 transitions. [2018-11-07 03:08:21,112 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 03:08:21,112 INFO L276 IsEmpty]: Start isEmpty. Operand 17983 states and 26797 transitions. [2018-11-07 03:08:21,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2018-11-07 03:08:21,124 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:08:21,124 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, 3, 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] [2018-11-07 03:08:21,125 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:08:21,125 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:08:21,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1738437273, now seen corresponding path program 1 times [2018-11-07 03:08:21,125 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:08:21,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:08:21,126 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:08:21,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:08:21,126 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:08:21,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:08:21,384 WARN L179 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 03:08:21,617 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 130 proven. 81 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 03:08:21,617 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 03:08:21,618 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 03:08:21,619 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 262 with the following transitions: [2018-11-07 03:08:21,627 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2187], [2195], [2203], [2211], [2219], [2227], [2235], [2243], [2251], [2259], [2267], [2275], [2283], [2291], [2299], [2307], [2315], [2323], [2331], [2339], [2343], [2345], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2424], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2492], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-11-07 03:08:21,716 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 03:08:21,717 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 03:08:24,643 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 03:08:24,645 INFO L272 AbstractInterpreter]: Visited 108 different actions 108 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-11-07 03:08:24,659 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:08:24,659 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 03:08:27,137 INFO L227 lantSequenceWeakener]: Weakened 253 states. On average, predicates are now at 75.92% of their original sizes. [2018-11-07 03:08:27,137 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 03:08:27,827 INFO L415 sIntCurrentIteration]: We unified 260 AI predicates to 260 [2018-11-07 03:08:27,828 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 03:08:27,829 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 03:08:27,829 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2018-11-07 03:08:27,830 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:08:27,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-07 03:08:27,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-07 03:08:27,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-07 03:08:27,831 INFO L87 Difference]: Start difference. First operand 17983 states and 26797 transitions. Second operand 8 states. [2018-11-07 03:08:31,738 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 03:10:13,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:10:13,940 INFO L93 Difference]: Finished difference Result 36730 states and 54615 transitions. [2018-11-07 03:10:13,940 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 03:10:13,940 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 261 [2018-11-07 03:10:13,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:10:14,002 INFO L225 Difference]: With dead ends: 36730 [2018-11-07 03:10:14,003 INFO L226 Difference]: Without dead ends: 18753 [2018-11-07 03:10:14,049 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 262 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-07 03:10:14,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18753 states. [2018-11-07 03:10:14,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18753 to 18751. [2018-11-07 03:10:14,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18751 states. [2018-11-07 03:10:14,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18751 states to 18751 states and 27578 transitions. [2018-11-07 03:10:14,430 INFO L78 Accepts]: Start accepts. Automaton has 18751 states and 27578 transitions. Word has length 261 [2018-11-07 03:10:14,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:10:14,430 INFO L480 AbstractCegarLoop]: Abstraction has 18751 states and 27578 transitions. [2018-11-07 03:10:14,430 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-07 03:10:14,430 INFO L276 IsEmpty]: Start isEmpty. Operand 18751 states and 27578 transitions. [2018-11-07 03:10:14,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2018-11-07 03:10:14,446 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:10:14,447 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, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-07 03:10:14,447 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:10:14,447 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:10:14,448 INFO L82 PathProgramCache]: Analyzing trace with hash -1680591689, now seen corresponding path program 1 times [2018-11-07 03:10:14,448 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:10:14,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:10:14,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:10:14,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:10:14,449 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:10:14,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:10:15,071 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 274 proven. 85 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-11-07 03:10:15,072 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 03:10:15,072 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 03:10:15,072 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 338 with the following transitions: [2018-11-07 03:10:15,073 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2187], [2195], [2203], [2211], [2219], [2227], [2235], [2243], [2251], [2259], [2267], [2275], [2283], [2291], [2299], [2307], [2315], [2323], [2331], [2339], [2343], [2345], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2384], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2424], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2492], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-11-07 03:10:15,083 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 03:10:15,085 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 03:10:22,331 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 03:10:22,331 INFO L272 AbstractInterpreter]: Visited 112 different actions 218 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-07 03:10:22,341 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:10:22,341 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 03:10:26,277 INFO L227 lantSequenceWeakener]: Weakened 228 states. On average, predicates are now at 76.17% of their original sizes. [2018-11-07 03:10:26,278 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 03:10:36,449 INFO L415 sIntCurrentIteration]: We unified 336 AI predicates to 336 [2018-11-07 03:10:36,449 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 03:10:36,449 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 03:10:36,449 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [23] imperfect sequences [6] total 27 [2018-11-07 03:10:36,450 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:10:36,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-11-07 03:10:36,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-11-07 03:10:36,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=376, Unknown=0, NotChecked=0, Total=506 [2018-11-07 03:10:36,451 INFO L87 Difference]: Start difference. First operand 18751 states and 27578 transitions. Second operand 23 states. Received shutdown request... [2018-11-07 03:10:52,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-07 03:10:52,937 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 03:10:52,944 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 03:10:52,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 03:10:52 BoogieIcfgContainer [2018-11-07 03:10:52,945 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 03:10:52,946 INFO L168 Benchmark]: Toolchain (without parser) took 211537.74 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -474.4 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-11-07 03:10:52,947 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. [2018-11-07 03:10:52,947 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2129.49 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. [2018-11-07 03:10:52,948 INFO L168 Benchmark]: Boogie Procedure Inliner took 401.66 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 775.4 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 54.6 MB. Max. memory is 7.1 GB. [2018-11-07 03:10:52,950 INFO L168 Benchmark]: Boogie Preprocessor took 287.25 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. [2018-11-07 03:10:52,950 INFO L168 Benchmark]: RCFGBuilder took 10092.20 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.5 GB in the end (delta: 664.3 MB). Peak memory consumption was 664.3 MB. Max. memory is 7.1 GB. [2018-11-07 03:10:52,951 INFO L168 Benchmark]: TraceAbstraction took 198620.68 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: -337.8 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-11-07 03:10:52,957 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 2129.49 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 401.66 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 775.4 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 54.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 287.25 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10092.20 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.5 GB in the end (delta: 664.3 MB). Peak memory consumption was 664.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 198620.68 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: -337.8 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 207]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 207). Cancelled while BasicCegarLoop was constructing difference of abstraction (18751states) and FLOYD_HOARE automaton (currently 9 states, 23 states before enhancement),while ReachableStatesComputation was computing reachable states (76 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 198.5s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 165.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1800 SDtfs, 13652 SDslu, 848 SDs, 0 SdLazy, 24150 SolverSat, 5348 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 113.5s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 638 GetRequests, 578 SyntacticMatches, 7 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 11.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18751occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 10.3s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9960893133711924 AbsIntWeakeningRatio, 0.10067114093959731 AbsIntAvgWeakeningVarsNumRemoved, 836.3120805369127 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.7s AutomataMinimizationTime, 6 MinimizatonAttempts, 235 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 1276 NumberOfCodeBlocks, 1276 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1269 ConstructedInterpolants, 0 QuantifiedInterpolants, 635997 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 743/909 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown