java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem03_label25_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 23:38:56,597 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 23:38:56,599 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 23:38:56,611 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 23:38:56,612 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 23:38:56,613 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 23:38:56,614 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 23:38:56,616 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 23:38:56,618 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 23:38:56,619 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 23:38:56,620 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 23:38:56,620 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 23:38:56,621 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 23:38:56,622 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 23:38:56,623 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 23:38:56,624 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 23:38:56,625 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 23:38:56,627 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 23:38:56,629 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 23:38:56,631 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 23:38:56,632 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 23:38:56,633 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 23:38:56,635 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-23 23:38:56,636 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-23 23:38:56,636 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-23 23:38:56,637 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-23 23:38:56,638 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-23 23:38:56,639 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-23 23:38:56,640 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-23 23:38:56,641 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-23 23:38:56,641 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-23 23:38:56,644 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-23 23:38:56,644 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-23 23:38:56,644 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-23 23:38:56,645 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-23 23:38:56,646 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-23 23:38:56,646 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-23 23:38:56,678 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 23:38:56,679 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 23:38:56,680 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 23:38:56,680 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-23 23:38:56,680 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-23 23:38:56,681 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-23 23:38:56,681 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-23 23:38:56,681 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-23 23:38:56,681 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-23 23:38:56,682 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-23 23:38:56,682 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-23 23:38:56,682 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-23 23:38:56,683 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 23:38:56,683 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 23:38:56,683 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 23:38:56,685 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 23:38:56,685 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 23:38:56,685 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 23:38:56,685 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 23:38:56,686 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 23:38:56,687 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 23:38:56,688 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 23:38:56,688 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 23:38:56,688 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 23:38:56,688 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 23:38:56,688 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 23:38:56,689 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 23:38:56,689 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 23:38:56,689 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-23 23:38:56,689 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 23:38:56,689 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 23:38:56,690 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 23:38:56,690 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 23:38:56,690 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-23 23:38:56,752 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 23:38:56,771 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 23:38:56,776 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 23:38:56,777 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 23:38:56,778 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 23:38:56,779 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label25_true-unreach-call.c [2018-10-23 23:38:56,856 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/386c10901/bde4169e62d14b97bf5e06fd011344dc/FLAG07cd5a97e [2018-10-23 23:38:57,608 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 23:38:57,610 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label25_true-unreach-call.c [2018-10-23 23:38:57,641 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/386c10901/bde4169e62d14b97bf5e06fd011344dc/FLAG07cd5a97e [2018-10-23 23:38:57,670 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/386c10901/bde4169e62d14b97bf5e06fd011344dc [2018-10-23 23:38:57,689 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 23:38:57,692 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 23:38:57,694 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 23:38:57,694 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 23:38:57,700 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 23:38:57,701 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:38:57" (1/1) ... [2018-10-23 23:38:57,705 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d20e510 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:38:57, skipping insertion in model container [2018-10-23 23:38:57,706 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:38:57" (1/1) ... [2018-10-23 23:38:57,719 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 23:38:57,829 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 23:38:58,556 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 23:38:58,562 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 23:38:58,912 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 23:38:58,937 INFO L193 MainTranslator]: Completed translation [2018-10-23 23:38:58,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:38:58 WrapperNode [2018-10-23 23:38:58,938 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 23:38:58,939 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 23:38:58,940 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 23:38:58,940 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 23:38:58,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:38:58" (1/1) ... [2018-10-23 23:38:59,015 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:38:58" (1/1) ... [2018-10-23 23:38:59,356 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 23:38:59,357 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 23:38:59,357 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 23:38:59,358 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 23:38:59,371 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:38:58" (1/1) ... [2018-10-23 23:38:59,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:38:58" (1/1) ... [2018-10-23 23:38:59,382 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:38:58" (1/1) ... [2018-10-23 23:38:59,383 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:38:58" (1/1) ... [2018-10-23 23:38:59,483 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:38:58" (1/1) ... [2018-10-23 23:38:59,522 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:38:58" (1/1) ... [2018-10-23 23:38:59,534 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:38:58" (1/1) ... [2018-10-23 23:38:59,545 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 23:38:59,546 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 23:38:59,546 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 23:38:59,547 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 23:38:59,548 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:38:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 23:38:59,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-23 23:38:59,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-23 23:38:59,621 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-23 23:38:59,621 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-23 23:38:59,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 23:38:59,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 23:38:59,622 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-23 23:38:59,622 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-23 23:39:04,804 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 23:39:04,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:39:04 BoogieIcfgContainer [2018-10-23 23:39:04,806 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 23:39:04,808 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 23:39:04,809 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 23:39:04,813 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 23:39:04,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 11:38:57" (1/3) ... [2018-10-23 23:39:04,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f1677e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:39:04, skipping insertion in model container [2018-10-23 23:39:04,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:38:58" (2/3) ... [2018-10-23 23:39:04,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f1677e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:39:04, skipping insertion in model container [2018-10-23 23:39:04,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:39:04" (3/3) ... [2018-10-23 23:39:04,820 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label25_true-unreach-call.c [2018-10-23 23:39:04,833 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 23:39:04,846 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 23:39:04,867 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 23:39:04,914 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 23:39:04,915 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 23:39:04,915 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 23:39:04,915 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 23:39:04,915 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 23:39:04,915 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 23:39:04,916 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 23:39:04,916 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 23:39:04,950 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2018-10-23 23:39:04,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2018-10-23 23:39:04,972 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:39:04,974 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 23:39:04,977 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:39:04,985 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:39:04,985 INFO L82 PathProgramCache]: Analyzing trace with hash -1441765812, now seen corresponding path program 1 times [2018-10-23 23:39:04,989 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:39:05,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:39:05,055 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:39:05,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:39:05,056 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:39:05,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:39:05,948 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 4 [2018-10-23 23:39:06,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 23:39:06,300 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 23:39:06,301 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 23:39:06,301 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:39:06,309 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 23:39:06,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 23:39:06,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 23:39:06,332 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 4 states. [2018-10-23 23:39:09,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 23:39:09,719 INFO L93 Difference]: Finished difference Result 1066 states and 1924 transitions. [2018-10-23 23:39:09,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 23:39:09,723 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 187 [2018-10-23 23:39:09,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 23:39:09,751 INFO L225 Difference]: With dead ends: 1066 [2018-10-23 23:39:09,751 INFO L226 Difference]: Without dead ends: 748 [2018-10-23 23:39:09,760 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 23:39:09,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2018-10-23 23:39:09,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 527. [2018-10-23 23:39:09,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 527 states. [2018-10-23 23:39:09,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 902 transitions. [2018-10-23 23:39:09,884 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 902 transitions. Word has length 187 [2018-10-23 23:39:09,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 23:39:09,885 INFO L481 AbstractCegarLoop]: Abstraction has 527 states and 902 transitions. [2018-10-23 23:39:09,885 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 23:39:09,885 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 902 transitions. [2018-10-23 23:39:09,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2018-10-23 23:39:09,902 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:39:09,902 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-23 23:39:09,903 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:39:09,907 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:39:09,907 INFO L82 PathProgramCache]: Analyzing trace with hash 730517125, now seen corresponding path program 1 times [2018-10-23 23:39:09,908 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:39:09,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:39:09,909 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:39:09,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:39:09,910 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:39:09,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:39:10,248 WARN L179 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2018-10-23 23:39:10,354 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 23:39:10,355 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 23:39:10,355 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 23:39:10,355 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:39:10,357 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 23:39:10,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 23:39:10,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-23 23:39:10,358 INFO L87 Difference]: Start difference. First operand 527 states and 902 transitions. Second operand 6 states. [2018-10-23 23:39:13,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 23:39:13,563 INFO L93 Difference]: Finished difference Result 1590 states and 2793 transitions. [2018-10-23 23:39:13,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-23 23:39:13,566 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 197 [2018-10-23 23:39:13,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 23:39:13,577 INFO L225 Difference]: With dead ends: 1590 [2018-10-23 23:39:13,577 INFO L226 Difference]: Without dead ends: 1069 [2018-10-23 23:39:13,580 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-23 23:39:13,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1069 states. [2018-10-23 23:39:13,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1069 to 1024. [2018-10-23 23:39:13,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1024 states. [2018-10-23 23:39:13,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1024 states to 1024 states and 1746 transitions. [2018-10-23 23:39:13,642 INFO L78 Accepts]: Start accepts. Automaton has 1024 states and 1746 transitions. Word has length 197 [2018-10-23 23:39:13,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 23:39:13,643 INFO L481 AbstractCegarLoop]: Abstraction has 1024 states and 1746 transitions. [2018-10-23 23:39:13,643 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 23:39:13,643 INFO L276 IsEmpty]: Start isEmpty. Operand 1024 states and 1746 transitions. [2018-10-23 23:39:13,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2018-10-23 23:39:13,648 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:39:13,648 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-23 23:39:13,649 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:39:13,649 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:39:13,649 INFO L82 PathProgramCache]: Analyzing trace with hash 1518817149, now seen corresponding path program 1 times [2018-10-23 23:39:13,649 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:39:13,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:39:13,651 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:39:13,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:39:13,651 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:39:13,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:39:13,907 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 23:39:13,907 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 23:39:13,908 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-23 23:39:13,908 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:39:13,908 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 23:39:13,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 23:39:13,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-23 23:39:13,909 INFO L87 Difference]: Start difference. First operand 1024 states and 1746 transitions. Second operand 5 states. [2018-10-23 23:39:17,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 23:39:17,140 INFO L93 Difference]: Finished difference Result 3166 states and 5674 transitions. [2018-10-23 23:39:17,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 23:39:17,145 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 198 [2018-10-23 23:39:17,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 23:39:17,164 INFO L225 Difference]: With dead ends: 3166 [2018-10-23 23:39:17,165 INFO L226 Difference]: Without dead ends: 2148 [2018-10-23 23:39:17,174 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-23 23:39:17,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2148 states. [2018-10-23 23:39:17,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2148 to 2105. [2018-10-23 23:39:17,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2105 states. [2018-10-23 23:39:17,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2105 states to 2105 states and 3422 transitions. [2018-10-23 23:39:17,270 INFO L78 Accepts]: Start accepts. Automaton has 2105 states and 3422 transitions. Word has length 198 [2018-10-23 23:39:17,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 23:39:17,271 INFO L481 AbstractCegarLoop]: Abstraction has 2105 states and 3422 transitions. [2018-10-23 23:39:17,271 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 23:39:17,271 INFO L276 IsEmpty]: Start isEmpty. Operand 2105 states and 3422 transitions. [2018-10-23 23:39:17,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2018-10-23 23:39:17,280 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:39:17,280 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-23 23:39:17,281 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:39:17,281 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:39:17,281 INFO L82 PathProgramCache]: Analyzing trace with hash 1899321928, now seen corresponding path program 1 times [2018-10-23 23:39:17,282 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:39:17,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:39:17,283 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:39:17,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:39:17,283 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:39:17,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:39:17,610 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 23:39:17,611 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 23:39:17,611 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 23:39:17,611 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:39:17,612 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 23:39:17,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 23:39:17,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 23:39:17,613 INFO L87 Difference]: Start difference. First operand 2105 states and 3422 transitions. Second operand 3 states. [2018-10-23 23:39:20,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 23:39:20,268 INFO L93 Difference]: Finished difference Result 6108 states and 10330 transitions. [2018-10-23 23:39:20,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 23:39:20,272 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 200 [2018-10-23 23:39:20,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 23:39:20,297 INFO L225 Difference]: With dead ends: 6108 [2018-10-23 23:39:20,297 INFO L226 Difference]: Without dead ends: 4009 [2018-10-23 23:39:20,308 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 23:39:20,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4009 states. [2018-10-23 23:39:20,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4009 to 3973. [2018-10-23 23:39:20,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3973 states. [2018-10-23 23:39:20,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3973 states to 3973 states and 6514 transitions. [2018-10-23 23:39:20,452 INFO L78 Accepts]: Start accepts. Automaton has 3973 states and 6514 transitions. Word has length 200 [2018-10-23 23:39:20,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 23:39:20,452 INFO L481 AbstractCegarLoop]: Abstraction has 3973 states and 6514 transitions. [2018-10-23 23:39:20,452 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 23:39:20,453 INFO L276 IsEmpty]: Start isEmpty. Operand 3973 states and 6514 transitions. [2018-10-23 23:39:20,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2018-10-23 23:39:20,467 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:39:20,468 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-23 23:39:20,468 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:39:20,468 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:39:20,469 INFO L82 PathProgramCache]: Analyzing trace with hash 709935156, now seen corresponding path program 1 times [2018-10-23 23:39:20,469 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:39:20,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:39:20,470 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:39:20,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:39:20,470 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:39:20,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:39:20,826 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 23:39:20,826 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 23:39:20,826 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-23 23:39:20,827 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:39:20,827 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-23 23:39:20,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-23 23:39:20,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-23 23:39:20,828 INFO L87 Difference]: Start difference. First operand 3973 states and 6514 transitions. Second operand 7 states. [2018-10-23 23:39:22,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 23:39:22,878 INFO L93 Difference]: Finished difference Result 12096 states and 22014 transitions. [2018-10-23 23:39:22,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 23:39:22,879 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 206 [2018-10-23 23:39:22,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 23:39:22,941 INFO L225 Difference]: With dead ends: 12096 [2018-10-23 23:39:22,941 INFO L226 Difference]: Without dead ends: 8129 [2018-10-23 23:39:22,961 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-10-23 23:39:22,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8129 states. [2018-10-23 23:39:23,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8129 to 7942. [2018-10-23 23:39:23,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7942 states. [2018-10-23 23:39:23,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7942 states to 7942 states and 13503 transitions. [2018-10-23 23:39:23,322 INFO L78 Accepts]: Start accepts. Automaton has 7942 states and 13503 transitions. Word has length 206 [2018-10-23 23:39:23,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 23:39:23,323 INFO L481 AbstractCegarLoop]: Abstraction has 7942 states and 13503 transitions. [2018-10-23 23:39:23,323 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-23 23:39:23,323 INFO L276 IsEmpty]: Start isEmpty. Operand 7942 states and 13503 transitions. [2018-10-23 23:39:23,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2018-10-23 23:39:23,352 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:39:23,352 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 23:39:23,353 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:39:23,353 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:39:23,353 INFO L82 PathProgramCache]: Analyzing trace with hash -1045586271, now seen corresponding path program 1 times [2018-10-23 23:39:23,353 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:39:23,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:39:23,355 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:39:23,355 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:39:23,355 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:39:23,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:39:23,598 WARN L179 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-23 23:39:23,905 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 23:39:23,906 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 23:39:23,906 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 23:39:23,906 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:39:23,907 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 23:39:23,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 23:39:23,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-23 23:39:23,907 INFO L87 Difference]: Start difference. First operand 7942 states and 13503 transitions. Second operand 6 states. [2018-10-23 23:39:26,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 23:39:26,490 INFO L93 Difference]: Finished difference Result 22960 states and 42530 transitions. [2018-10-23 23:39:26,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 23:39:26,491 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 211 [2018-10-23 23:39:26,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 23:39:26,589 INFO L225 Difference]: With dead ends: 22960 [2018-10-23 23:39:26,589 INFO L226 Difference]: Without dead ends: 15024 [2018-10-23 23:39:26,624 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-23 23:39:26,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15024 states. [2018-10-23 23:39:27,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15024 to 14866. [2018-10-23 23:39:27,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14866 states. [2018-10-23 23:39:27,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14866 states to 14866 states and 24364 transitions. [2018-10-23 23:39:27,144 INFO L78 Accepts]: Start accepts. Automaton has 14866 states and 24364 transitions. Word has length 211 [2018-10-23 23:39:27,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 23:39:27,145 INFO L481 AbstractCegarLoop]: Abstraction has 14866 states and 24364 transitions. [2018-10-23 23:39:27,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 23:39:27,145 INFO L276 IsEmpty]: Start isEmpty. Operand 14866 states and 24364 transitions. [2018-10-23 23:39:27,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2018-10-23 23:39:27,199 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:39:27,199 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 23:39:27,200 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:39:27,200 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:39:27,200 INFO L82 PathProgramCache]: Analyzing trace with hash -1142196010, now seen corresponding path program 1 times [2018-10-23 23:39:27,200 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:39:27,201 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:39:27,201 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:39:27,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:39:27,206 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:39:27,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:39:27,599 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-10-23 23:39:27,599 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 23:39:27,600 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 23:39:27,600 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:39:27,600 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 23:39:27,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 23:39:27,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 23:39:27,601 INFO L87 Difference]: Start difference. First operand 14866 states and 24364 transitions. Second operand 3 states. [2018-10-23 23:39:30,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 23:39:30,935 INFO L93 Difference]: Finished difference Result 41273 states and 69018 transitions. [2018-10-23 23:39:30,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 23:39:30,936 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 235 [2018-10-23 23:39:30,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 23:39:31,084 INFO L225 Difference]: With dead ends: 41273 [2018-10-23 23:39:31,084 INFO L226 Difference]: Without dead ends: 26413 [2018-10-23 23:39:31,156 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 23:39:31,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26413 states. [2018-10-23 23:39:31,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26413 to 26410. [2018-10-23 23:39:31,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26410 states. [2018-10-23 23:39:32,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26410 states to 26410 states and 41323 transitions. [2018-10-23 23:39:32,274 INFO L78 Accepts]: Start accepts. Automaton has 26410 states and 41323 transitions. Word has length 235 [2018-10-23 23:39:32,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 23:39:32,275 INFO L481 AbstractCegarLoop]: Abstraction has 26410 states and 41323 transitions. [2018-10-23 23:39:32,275 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 23:39:32,275 INFO L276 IsEmpty]: Start isEmpty. Operand 26410 states and 41323 transitions. [2018-10-23 23:39:32,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2018-10-23 23:39:32,364 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:39:32,365 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 23:39:32,365 INFO L424 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:39:32,366 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:39:32,366 INFO L82 PathProgramCache]: Analyzing trace with hash -1569214991, now seen corresponding path program 1 times [2018-10-23 23:39:32,366 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:39:32,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:39:32,367 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:39:32,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:39:32,367 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:39:32,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:39:32,723 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 80 proven. 18 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-10-23 23:39:32,724 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 23:39:32,724 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-23 23:39:32,725 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 254 with the following transitions: [2018-10-23 23:39:32,728 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [25], [29], [33], [37], [41], [45], [49], [52], [53], [57], [61], [64], [65], [68], [71], [75], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [957], [959], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-23 23:39:32,836 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-23 23:39:32,836 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-10-23 23:43:24,858 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-10-23 23:43:24,859 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-10-23 23:43:24,860 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-23 23:43:24,861 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 23:43:24,861 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 23:43:24,871 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:43:24,872 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-23 23:43:25,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:43:25,123 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 23:43:25,160 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-23 23:43:25,362 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 23:43:25,363 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 23:43:25,369 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 23:43:25,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 11:43:25 BoogieIcfgContainer [2018-10-23 23:43:25,369 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 23:43:25,370 INFO L168 Benchmark]: Toolchain (without parser) took 267680.01 ms. Allocated memory was 1.5 GB in the beginning and 3.5 GB in the end (delta: 1.9 GB). Free memory was 1.4 GB in the beginning and 2.6 GB in the end (delta: -1.2 GB). Peak memory consumption was 723.6 MB. Max. memory is 7.1 GB. [2018-10-23 23:43:25,371 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 23:43:25,372 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1245.09 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-10-23 23:43:25,373 INFO L168 Benchmark]: Boogie Procedure Inliner took 417.43 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 725.6 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -849.7 MB). Peak memory consumption was 40.2 MB. Max. memory is 7.1 GB. [2018-10-23 23:43:25,374 INFO L168 Benchmark]: Boogie Preprocessor took 188.51 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. [2018-10-23 23:43:25,375 INFO L168 Benchmark]: RCFGBuilder took 5260.40 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 254.8 MB). Peak memory consumption was 254.8 MB. Max. memory is 7.1 GB. [2018-10-23 23:43:25,375 INFO L168 Benchmark]: TraceAbstraction took 260561.00 ms. Allocated memory was 2.2 GB in the beginning and 3.5 GB in the end (delta: 1.2 GB). Free memory was 1.9 GB in the beginning and 2.6 GB in the end (delta: -719.7 MB). Peak memory consumption was 494.1 MB. Max. memory is 7.1 GB. [2018-10-23 23:43:25,380 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 1245.09 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 417.43 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 725.6 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -849.7 MB). Peak memory consumption was 40.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 188.51 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5260.40 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 254.8 MB). Peak memory consumption was 254.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 260561.00 ms. Allocated memory was 2.2 GB in the beginning and 3.5 GB in the end (delta: 1.2 GB). Free memory was 1.9 GB in the beginning and 2.6 GB in the end (delta: -719.7 MB). Peak memory consumption was 494.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1575]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1575). Cancelled while BasicCegarLoop was analyzing trace of length 254 with TraceHistMax 4,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 6 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 312 locations, 1 error locations. TIMEOUT Result, 260.4s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 21.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1495 SDtfs, 5307 SDslu, 1089 SDs, 0 SdLazy, 7882 SolverSat, 1581 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 18 SyntacticMatches, 4 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26410occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 232.1s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.4s AutomataMinimizationTime, 7 MinimizatonAttempts, 693 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 1434 NumberOfCodeBlocks, 1434 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1427 ConstructedInterpolants, 0 QuantifiedInterpolants, 791881 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 114/114 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown