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/Problem19_label04_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 04:12:18,625 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 04:12:18,627 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 04:12:18,641 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 04:12:18,641 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 04:12:18,642 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 04:12:18,644 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 04:12:18,645 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 04:12:18,647 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 04:12:18,648 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 04:12:18,649 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 04:12:18,649 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 04:12:18,650 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 04:12:18,651 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 04:12:18,652 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 04:12:18,653 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 04:12:18,654 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 04:12:18,656 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 04:12:18,657 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 04:12:18,659 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 04:12:18,660 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 04:12:18,663 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 04:12:18,668 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 04:12:18,668 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 04:12:18,668 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 04:12:18,669 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 04:12:18,672 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 04:12:18,672 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 04:12:18,673 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 04:12:18,674 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 04:12:18,674 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 04:12:18,675 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 04:12:18,675 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 04:12:18,675 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 04:12:18,678 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 04:12:18,679 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 04:12:18,679 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 04:12:18,709 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 04:12:18,709 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 04:12:18,710 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 04:12:18,710 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 04:12:18,710 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 04:12:18,711 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 04:12:18,711 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 04:12:18,711 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 04:12:18,711 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 04:12:18,711 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 04:12:18,715 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 04:12:18,715 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 04:12:18,716 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 04:12:18,716 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 04:12:18,716 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 04:12:18,716 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 04:12:18,716 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 04:12:18,716 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 04:12:18,718 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 04:12:18,718 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 04:12:18,719 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 04:12:18,719 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 04:12:18,719 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 04:12:18,719 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 04:12:18,719 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 04:12:18,720 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 04:12:18,720 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 04:12:18,720 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 04:12:18,720 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 04:12:18,721 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 04:12:18,721 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 04:12:18,721 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 04:12:18,721 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 04:12:18,721 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 04:12:18,773 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 04:12:18,791 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 04:12:18,795 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 04:12:18,796 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 04:12:18,797 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 04:12:18,797 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label04_true-unreach-call.c [2018-11-07 04:12:18,858 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/478b35205/587d223ecdb04ee2a34d92d62540128d/FLAGd3c440017 [2018-11-07 04:12:19,724 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 04:12:19,725 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label04_true-unreach-call.c [2018-11-07 04:12:19,768 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/478b35205/587d223ecdb04ee2a34d92d62540128d/FLAGd3c440017 [2018-11-07 04:12:19,783 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/478b35205/587d223ecdb04ee2a34d92d62540128d [2018-11-07 04:12:19,795 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 04:12:19,796 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 04:12:19,798 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 04:12:19,798 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 04:12:19,802 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 04:12:19,803 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:12:19" (1/1) ... [2018-11-07 04:12:19,806 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69eee2e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:19, skipping insertion in model container [2018-11-07 04:12:19,807 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:12:19" (1/1) ... [2018-11-07 04:12:19,818 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 04:12:20,073 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 04:12:22,081 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 04:12:22,086 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 04:12:23,282 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 04:12:23,337 INFO L193 MainTranslator]: Completed translation [2018-11-07 04:12:23,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:23 WrapperNode [2018-11-07 04:12:23,338 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 04:12:23,339 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 04:12:23,339 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 04:12:23,340 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 04:12:23,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:23" (1/1) ... [2018-11-07 04:12:23,849 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:23" (1/1) ... [2018-11-07 04:12:23,861 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 04:12:23,861 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 04:12:23,861 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 04:12:23,861 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 04:12:23,872 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:23" (1/1) ... [2018-11-07 04:12:23,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:23" (1/1) ... [2018-11-07 04:12:23,925 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:23" (1/1) ... [2018-11-07 04:12:23,926 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:23" (1/1) ... [2018-11-07 04:12:24,096 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:23" (1/1) ... [2018-11-07 04:12:24,143 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:23" (1/1) ... [2018-11-07 04:12:24,197 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:23" (1/1) ... [2018-11-07 04:12:24,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 04:12:24,284 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 04:12:24,284 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 04:12:24,284 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 04:12:24,285 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:23" (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 04:12:24,361 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 04:12:24,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 04:12:24,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 04:12:24,362 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-11-07 04:12:24,362 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-11-07 04:12:24,362 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-11-07 04:12:24,363 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-11-07 04:12:24,363 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-07 04:12:24,363 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-07 04:12:24,364 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 04:12:24,364 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 04:12:24,364 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 04:12:24,364 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 04:12:24,366 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 04:12:24,366 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 04:12:24,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 04:12:24,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 04:12:24,366 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 04:12:24,366 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 04:12:40,198 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 04:12:40,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:12:40 BoogieIcfgContainer [2018-11-07 04:12:40,199 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 04:12:40,200 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 04:12:40,200 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 04:12:40,203 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 04:12:40,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:12:19" (1/3) ... [2018-11-07 04:12:40,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74225789 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:12:40, skipping insertion in model container [2018-11-07 04:12:40,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:23" (2/3) ... [2018-11-07 04:12:40,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74225789 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:12:40, skipping insertion in model container [2018-11-07 04:12:40,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:12:40" (3/3) ... [2018-11-07 04:12:40,207 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label04_true-unreach-call.c [2018-11-07 04:12:40,217 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 04:12:40,227 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 04:12:40,243 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 04:12:40,294 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 04:12:40,294 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 04:12:40,295 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 04:12:40,295 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 04:12:40,295 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 04:12:40,295 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 04:12:40,295 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 04:12:40,295 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 04:12:40,347 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-11-07 04:12:40,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-11-07 04:12:40,358 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:12:40,360 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] [2018-11-07 04:12:40,362 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:12:40,368 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:12:40,368 INFO L82 PathProgramCache]: Analyzing trace with hash 1217849618, now seen corresponding path program 1 times [2018-11-07 04:12:40,371 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:12:40,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:12:40,425 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:12:40,426 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:12:40,426 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:12:40,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:12:41,070 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 04:12:41,075 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 04:12:41,075 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 04:12:41,075 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:12:41,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 04:12:41,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 04:12:41,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 04:12:41,115 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 4 states. [2018-11-07 04:13:00,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 04:13:00,907 INFO L93 Difference]: Finished difference Result 6465 states and 12332 transitions. [2018-11-07 04:13:00,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 04:13:00,911 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 69 [2018-11-07 04:13:00,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 04:13:00,960 INFO L225 Difference]: With dead ends: 6465 [2018-11-07 04:13:00,960 INFO L226 Difference]: Without dead ends: 4681 [2018-11-07 04:13:00,976 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 04:13:01,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4681 states. [2018-11-07 04:13:01,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4681 to 3200. [2018-11-07 04:13:01,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3200 states. [2018-11-07 04:13:01,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3200 states to 3200 states and 5132 transitions. [2018-11-07 04:13:01,204 INFO L78 Accepts]: Start accepts. Automaton has 3200 states and 5132 transitions. Word has length 69 [2018-11-07 04:13:01,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 04:13:01,205 INFO L480 AbstractCegarLoop]: Abstraction has 3200 states and 5132 transitions. [2018-11-07 04:13:01,205 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 04:13:01,205 INFO L276 IsEmpty]: Start isEmpty. Operand 3200 states and 5132 transitions. [2018-11-07 04:13:01,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-11-07 04:13:01,218 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:13:01,219 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 04:13:01,219 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:13:01,219 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:13:01,220 INFO L82 PathProgramCache]: Analyzing trace with hash 204164316, now seen corresponding path program 1 times [2018-11-07 04:13:01,221 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:13:01,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:13:01,222 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:13:01,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:13:01,222 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:13:01,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:13:01,598 WARN L179 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 04:13:02,162 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 04:13:02,163 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 04:13:02,163 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 04:13:02,163 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:13:02,165 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 04:13:02,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 04:13:02,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 04:13:02,166 INFO L87 Difference]: Start difference. First operand 3200 states and 5132 transitions. Second operand 6 states. [2018-11-07 04:13:23,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 04:13:23,825 INFO L93 Difference]: Finished difference Result 12097 states and 19723 transitions. [2018-11-07 04:13:23,828 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 04:13:23,828 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 141 [2018-11-07 04:13:23,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 04:13:23,872 INFO L225 Difference]: With dead ends: 12097 [2018-11-07 04:13:23,872 INFO L226 Difference]: Without dead ends: 8903 [2018-11-07 04:13:23,889 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 04:13:23,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8903 states. [2018-11-07 04:13:24,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8903 to 8846. [2018-11-07 04:13:24,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8846 states. [2018-11-07 04:13:24,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8846 states to 8846 states and 12708 transitions. [2018-11-07 04:13:24,143 INFO L78 Accepts]: Start accepts. Automaton has 8846 states and 12708 transitions. Word has length 141 [2018-11-07 04:13:24,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 04:13:24,144 INFO L480 AbstractCegarLoop]: Abstraction has 8846 states and 12708 transitions. [2018-11-07 04:13:24,144 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 04:13:24,145 INFO L276 IsEmpty]: Start isEmpty. Operand 8846 states and 12708 transitions. [2018-11-07 04:13:24,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-11-07 04:13:24,160 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:13:24,161 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, 1, 1, 1, 1, 1, 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 04:13:24,161 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:13:24,161 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:13:24,162 INFO L82 PathProgramCache]: Analyzing trace with hash 2146087454, now seen corresponding path program 1 times [2018-11-07 04:13:24,163 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:13:24,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:13:24,164 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:13:24,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:13:24,164 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:13:24,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:13:24,558 WARN L179 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2018-11-07 04:13:24,677 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 04:13:24,677 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 04:13:24,678 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 04:13:24,678 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:13:24,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 04:13:24,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 04:13:24,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-07 04:13:24,679 INFO L87 Difference]: Start difference. First operand 8846 states and 12708 transitions. Second operand 6 states. [2018-11-07 04:13:39,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 04:13:39,135 INFO L93 Difference]: Finished difference Result 26865 states and 39153 transitions. [2018-11-07 04:13:39,136 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-07 04:13:39,136 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 151 [2018-11-07 04:13:39,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 04:13:39,205 INFO L225 Difference]: With dead ends: 26865 [2018-11-07 04:13:39,206 INFO L226 Difference]: Without dead ends: 18025 [2018-11-07 04:13:39,232 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-07 04:13:39,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18025 states. [2018-11-07 04:13:39,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18025 to 17827. [2018-11-07 04:13:39,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17827 states. [2018-11-07 04:13:39,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17827 states to 17827 states and 25148 transitions. [2018-11-07 04:13:39,634 INFO L78 Accepts]: Start accepts. Automaton has 17827 states and 25148 transitions. Word has length 151 [2018-11-07 04:13:39,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 04:13:39,635 INFO L480 AbstractCegarLoop]: Abstraction has 17827 states and 25148 transitions. [2018-11-07 04:13:39,635 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 04:13:39,636 INFO L276 IsEmpty]: Start isEmpty. Operand 17827 states and 25148 transitions. [2018-11-07 04:13:39,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2018-11-07 04:13:39,641 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:13:39,641 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:13:39,641 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:13:39,645 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:13:39,646 INFO L82 PathProgramCache]: Analyzing trace with hash -1207634700, now seen corresponding path program 1 times [2018-11-07 04:13:39,646 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:13:39,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:13:39,648 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:13:39,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:13:39,648 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:13:39,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:13:39,979 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 04:13:39,979 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 04:13:39,980 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 04:13:39,980 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:13:39,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 04:13:39,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 04:13:39,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 04:13:39,981 INFO L87 Difference]: Start difference. First operand 17827 states and 25148 transitions. Second operand 5 states. [2018-11-07 04:13:56,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 04:13:56,907 INFO L93 Difference]: Finished difference Result 54241 states and 77920 transitions. [2018-11-07 04:13:56,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 04:13:56,909 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 171 [2018-11-07 04:13:56,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 04:13:57,064 INFO L225 Difference]: With dead ends: 54241 [2018-11-07 04:13:57,064 INFO L226 Difference]: Without dead ends: 36420 [2018-11-07 04:13:57,129 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 04:13:57,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36420 states. [2018-11-07 04:13:57,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36420 to 35796. [2018-11-07 04:13:57,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35796 states. [2018-11-07 04:13:57,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35796 states to 35796 states and 46089 transitions. [2018-11-07 04:13:57,931 INFO L78 Accepts]: Start accepts. Automaton has 35796 states and 46089 transitions. Word has length 171 [2018-11-07 04:13:57,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 04:13:57,932 INFO L480 AbstractCegarLoop]: Abstraction has 35796 states and 46089 transitions. [2018-11-07 04:13:57,932 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 04:13:57,932 INFO L276 IsEmpty]: Start isEmpty. Operand 35796 states and 46089 transitions. [2018-11-07 04:13:57,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2018-11-07 04:13:57,940 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:13:57,940 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:13:57,941 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:13:57,941 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:13:57,941 INFO L82 PathProgramCache]: Analyzing trace with hash -1449124311, now seen corresponding path program 1 times [2018-11-07 04:13:57,941 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:13:57,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:13:57,942 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:13:57,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:13:57,942 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:13:57,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:13:58,295 WARN L179 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 04:13:58,761 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 04:13:58,762 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 04:13:58,762 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 04:13:58,762 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:13:58,763 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 04:13:58,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 04:13:58,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 04:13:58,764 INFO L87 Difference]: Start difference. First operand 35796 states and 46089 transitions. Second operand 6 states. [2018-11-07 04:14:12,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 04:14:12,200 INFO L93 Difference]: Finished difference Result 83936 states and 111080 transitions. [2018-11-07 04:14:12,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 04:14:12,203 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 234 [2018-11-07 04:14:12,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 04:14:12,360 INFO L225 Difference]: With dead ends: 83936 [2018-11-07 04:14:12,360 INFO L226 Difference]: Without dead ends: 48146 [2018-11-07 04:14:12,442 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 04:14:12,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48146 states. [2018-11-07 04:14:13,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48146 to 47822. [2018-11-07 04:14:13,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47822 states. [2018-11-07 04:14:13,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47822 states to 47822 states and 61114 transitions. [2018-11-07 04:14:13,807 INFO L78 Accepts]: Start accepts. Automaton has 47822 states and 61114 transitions. Word has length 234 [2018-11-07 04:14:13,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 04:14:13,810 INFO L480 AbstractCegarLoop]: Abstraction has 47822 states and 61114 transitions. [2018-11-07 04:14:13,810 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 04:14:13,810 INFO L276 IsEmpty]: Start isEmpty. Operand 47822 states and 61114 transitions. [2018-11-07 04:14:13,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 992 [2018-11-07 04:14:13,856 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:14:13,857 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:14:13,857 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:14:13,857 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:14:13,858 INFO L82 PathProgramCache]: Analyzing trace with hash -340052397, now seen corresponding path program 1 times [2018-11-07 04:14:13,858 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:14:13,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:14:13,859 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:14:13,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:14:13,859 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:14:13,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:14:15,170 INFO L134 CoverageAnalysis]: Checked inductivity of 562 backedges. 401 proven. 81 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2018-11-07 04:14:15,170 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 04:14:15,170 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 04:14:15,172 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 992 with the following transitions: [2018-11-07 04:14:15,176 INFO L202 CegarAbsIntRunner]: [0], [1], [3088], [3092], [3096], [3100], [3104], [3108], [3112], [3116], [3127], [3131], [3135], [3146], [3150], [3154], [3158], [3169], [3173], [3184], [3188], [3192], [3196], [3200], [3204], [3208], [3212], [3216], [3220], [3224], [3228], [3232], [3236], [3240], [3251], [3255], [3259], [3263], [3267], [3271], [3275], [3279], [3283], [3287], [3291], [3302], [3306], [3310], [3314], [3318], [3322], [3326], [3330], [3334], [3338], [3342], [3346], [3350], [3361], [3365], [3376], [3380], [3384], [3395], [3399], [3403], [3407], [3418], [3422], [3426], [3430], [3434], [3438], [3442], [3446], [3457], [3461], [3465], [3469], [3473], [3484], [3488], [3492], [3496], [3500], [3504], [3508], [3512], [3516], [3520], [3524], [3528], [3532], [3536], [3540], [3544], [3548], [3552], [3556], [3567], [3571], [3575], [3579], [3583], [3587], [3591], [3595], [3599], [3603], [3607], [3610], [4195], [4196], [4200], [4204], [4208], [4212], [4216], [4220], [4224], [4228], [4232], [4236], [4240], [4244], [4248], [4252], [4256], [4260], [4264], [4268], [4279], [4290], [4294], [4298], [4309], [4313], [4317], [4321], [4325], [4329], [4333], [4337], [4341], [4345], [4349], [4353], [4357], [4361], [4365], [4369], [4373], [4377], [4381], [4385], [4396], [4400], [4404], [4408], [4412], [4416], [4420], [4431], [4435], [4439], [4443], [4454], [4458], [4462], [4466], [4470], [4474], [4478], [4482], [4486], [4490], [4494], [4498], [4502], [4506], [4510], [4514], [4518], [4522], [4526], [4530], [4534], [4538], [4542], [4553], [4557], [4561], [4565], [4569], [4573], [4577], [4581], [4585], [4589], [4593], [4597], [4601], [4605], [4609], [4620], [4624], [4628], [4632], [4636], [4647], [4651], [4655], [4659], [4663], [4667], [4671], [4675], [4679], [4690], [4694], [4698], [4709], [4713], [4717], [4721], [4725], [4729], [4733], [4737], [4741], [4745], [4749], [4753], [4764], [4768], [4772], [4776], [4780], [4784], [4788], [4792], [4803], [4807], [4811], [4815], [4819], [4823], [4827], [4831], [4835], [4839], [4843], [4847], [4858], [4862], [4873], [4877], [4881], [4885], [4896], [4900], [4904], [4908], [4912], [4916], [4920], [4924], [4935], [4939], [4943], [4954], [4958], [4962], [4966], [4970], [4974], [4978], [4982], [4986], [4990], [4994], [4998], [5002], [5006], [5010], [5014], [5018], [5022], [5026], [5030], [5034], [5038], [5042], [5046], [5050], [5054], [5058], [5062], [5066], [5070], [5074], [5078], [5082], [5086], [5090], [5094], [5105], [5109], [5120], [5124], [5128], [5132], [5136], [5140], [5144], [5148], [5152], [5156], [5167], [5171], [5175], [5179], [5183], [5187], [5191], [5195], [5199], [5203], [5207], [5211], [5215], [5219], [5223], [5225], [5226], [5227], [5234], [5242], [5250], [5254], [5256], [5258], [5266], [5274], [5282], [5290], [5298], [5306], [5314], [5322], [5330], [5338], [5346], [5354], [5362], [5370], [5378], [5386], [5394], [5402], [5410], [5418], [5426], [5434], [5442], [5450], [5458], [5466], [5474], [5482], [5490], [5498], [5506], [5514], [5522], [5530], [5538], [5546], [5554], [5562], [5570], [5578], [5586], [5594], [5602], [5610], [5618], [5626], [5634], [5642], [5650], [5658], [5666], [5674], [5678], [5680], [5683], [5691], [5699], [5707], [5715], [5727], [5731], [5742], [5746], [5750], [5754], [5758], [5762], [5766], [5770], [5774], [5778], [5781], [5782], [5786], [5797], [5808], [5819], [5823], [5827], [5838], [5842], [5846], [5850], [5854], [5858], [5862], [5866], [5870], [5874], [5878], [5882], [5886], [5890], [5894], [5898], [5902], [5906], [5910], [5914], [5918], [5922], [5926], [5930], [5934], [5938], [5942], [5946], [5950], [5954], [5958], [5962], [5966], [5977], [5981], [5985], [5996], [6000], [6004], [6008], [6012], [6016], [6020], [6024], [6028], [6032], [6036], [6040], [6051], [6055], [6059], [6063], [6067], [6071], [6075], [6079], [6083], [6087], [6091], [6102], [6106], [6110], [6121], [6125], [6129], [6140], [6144], [6148], [6152], [6156], [6160], [6164], [6168], [6172], [6176], [6180], [6184], [6188], [6192], [6196], [6200], [6204], [6208], [6212], [6216], [6220], [6224], [6228], [6232], [6236], [6240], [6251], [6255], [6259], [6263], [6267], [6278], [6282], [6286], [6290], [6294], [6298], [6302], [6306], [6310], [6314], [6325], [6329], [6333], [6344], [6348], [6352], [6356], [6360], [6371], [6375], [6379], [6383], [6387], [6391], [6402], [6413], [6417], [6420], [6421], [6425], [6429], [6440], [6444], [6455], [6459], [6463], [6467], [6471], [6475], [6486], [6490], [6494], [6498], [6502], [6506], [6510], [6514], [6525], [6529], [6533], [6537], [6541], [6545], [6549], [6553], [6557], [6561], [6565], [6569], [6573], [6577], [6581], [6585], [6589], [6593], [6604], [6608], [6619], [6623], [6634], [6645], [6649], [6653], [6657], [6661], [6665], [6669], [6673], [6677], [6681], [6685], [6689], [6693], [6697], [6701], [6712], [6716], [6727], [6731], [6735], [6739], [6743], [6747], [6751], [6755], [6759], [6763], [6767], [6771], [6775], [6779], [6783], [6787], [6791], [6795], [6799], [6801], [6802], [6806], [6810], [6816], [6820], [6822], [6833], [6834], [6835], [6836], [6837], [6838], [6839], [6841], [6842] [2018-11-07 04:14:15,300 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 04:14:15,301 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 04:14:22,883 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 04:14:38,673 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 04:14:38,677 INFO L272 AbstractInterpreter]: Visited 628 different actions 628 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-11-07 04:14:38,720 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:14:38,720 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 04:14:47,439 INFO L227 lantSequenceWeakener]: Weakened 973 states. On average, predicates are now at 75.23% of their original sizes. [2018-11-07 04:14:47,439 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 04:14:48,544 INFO L415 sIntCurrentIteration]: We unified 990 AI predicates to 990 [2018-11-07 04:14:48,544 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 04:14:48,545 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 04:14:48,546 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [7] total 18 [2018-11-07 04:14:48,546 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:14:48,547 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-07 04:14:48,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-07 04:14:48,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2018-11-07 04:14:48,548 INFO L87 Difference]: Start difference. First operand 47822 states and 61114 transitions. Second operand 13 states. Received shutdown request... [2018-11-07 04:15:57,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-07 04:15:57,004 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 04:15:57,009 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 04:15:57,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 04:15:57 BoogieIcfgContainer [2018-11-07 04:15:57,010 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 04:15:57,011 INFO L168 Benchmark]: Toolchain (without parser) took 217215.25 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 3.2 GB in the end (delta: -1.8 GB). Peak memory consumption was 749.8 MB. Max. memory is 7.1 GB. [2018-11-07 04:15:57,012 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 04:15:57,012 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3541.28 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 391.9 MB). Peak memory consumption was 391.9 MB. Max. memory is 7.1 GB. [2018-11-07 04:15:57,013 INFO L168 Benchmark]: Boogie Procedure Inliner took 521.60 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 847.2 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 109.5 MB. Max. memory is 7.1 GB. [2018-11-07 04:15:57,014 INFO L168 Benchmark]: Boogie Preprocessor took 422.04 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 51.7 MB). Peak memory consumption was 51.7 MB. Max. memory is 7.1 GB. [2018-11-07 04:15:57,015 INFO L168 Benchmark]: RCFGBuilder took 15915.37 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 156.8 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 496.3 MB). Peak memory consumption was 665.7 MB. Max. memory is 7.1 GB. [2018-11-07 04:15:57,016 INFO L168 Benchmark]: TraceAbstraction took 196810.16 ms. Allocated memory was 2.5 GB in the beginning and 4.1 GB in the end (delta: 1.5 GB). Free memory was 1.7 GB in the beginning and 3.2 GB in the end (delta: -1.5 GB). Peak memory consumption was 86.9 MB. Max. memory is 7.1 GB. [2018-11-07 04:15:57,022 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3541.28 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 391.9 MB). Peak memory consumption was 391.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 521.60 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 847.2 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 109.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 422.04 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 51.7 MB). Peak memory consumption was 51.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 15915.37 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 156.8 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 496.3 MB). Peak memory consumption was 665.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 196810.16 ms. Allocated memory was 2.5 GB in the beginning and 4.1 GB in the end (delta: 1.5 GB). Free memory was 1.7 GB in the beginning and 3.2 GB in the end (delta: -1.5 GB). Peak memory consumption was 86.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 202]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 202). Cancelled while BasicCegarLoop was constructing difference of abstraction (47822states) and FLOYD_HOARE automaton (currently 13 states, 13 states before enhancement),while ReachableStatesComputation was computing reachable states (13377 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 196.7s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 155.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3883 SDtfs, 31207 SDslu, 4299 SDs, 0 SdLazy, 47404 SolverSat, 12313 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 95.6s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 1041 GetRequests, 993 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47822occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 23.5s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9987148407148406 AbsIntWeakeningRatio, 0.04141414141414142 AbsIntAvgWeakeningVarsNumRemoved, 1075.3323232323232 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 3.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 2684 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 1757 NumberOfCodeBlocks, 1757 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1751 ConstructedInterpolants, 0 QuantifiedInterpolants, 2169687 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 729/810 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown