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-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label03_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 07:51:45,537 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 07:51:45,540 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 07:51:45,557 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 07:51:45,558 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 07:51:45,559 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 07:51:45,560 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 07:51:45,562 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 07:51:45,564 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 07:51:45,564 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 07:51:45,565 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 07:51:45,566 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 07:51:45,567 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 07:51:45,568 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 07:51:45,569 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 07:51:45,569 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 07:51:45,570 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 07:51:45,572 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 07:51:45,574 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 07:51:45,576 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 07:51:45,577 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 07:51:45,578 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 07:51:45,581 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 07:51:45,581 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 07:51:45,581 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 07:51:45,582 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 07:51:45,583 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 07:51:45,584 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 07:51:45,585 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 07:51:45,586 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 07:51:45,586 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 07:51:45,587 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 07:51:45,587 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 07:51:45,587 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 07:51:45,588 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 07:51:45,589 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 07:51:45,589 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-10-27 07:51:45,604 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 07:51:45,605 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 07:51:45,605 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 07:51:45,606 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 07:51:45,606 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 07:51:45,606 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 07:51:45,606 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-27 07:51:45,606 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 07:51:45,607 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-27 07:51:45,607 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 07:51:45,607 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 07:51:45,607 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 07:51:45,607 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 07:51:45,608 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 07:51:45,608 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 07:51:45,609 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 07:51:45,609 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 07:51:45,609 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 07:51:45,609 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 07:51:45,609 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 07:51:45,610 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 07:51:45,610 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 07:51:45,610 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 07:51:45,610 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 07:51:45,610 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 07:51:45,611 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 07:51:45,611 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 07:51:45,611 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 07:51:45,611 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 07:51:45,611 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 07:51:45,612 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 07:51:45,612 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 07:51:45,612 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 07:51:45,612 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 07:51:45,612 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 07:51:45,613 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 07:51:45,659 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 07:51:45,677 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 07:51:45,680 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 07:51:45,682 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 07:51:45,683 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 07:51:45,683 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label03_true-unreach-call.c [2018-10-27 07:51:45,762 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8c4b904fb/53221613c6644b1d9c122313dfea961d/FLAG6cbe3787a [2018-10-27 07:51:46,548 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 07:51:46,550 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label03_true-unreach-call.c [2018-10-27 07:51:46,591 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8c4b904fb/53221613c6644b1d9c122313dfea961d/FLAG6cbe3787a [2018-10-27 07:51:46,612 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8c4b904fb/53221613c6644b1d9c122313dfea961d [2018-10-27 07:51:46,626 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 07:51:46,631 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 07:51:46,632 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 07:51:46,633 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 07:51:46,638 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 07:51:46,640 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:51:46" (1/1) ... [2018-10-27 07:51:46,645 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f109294 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:51:46, skipping insertion in model container [2018-10-27 07:51:46,646 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:51:46" (1/1) ... [2018-10-27 07:51:46,657 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 07:51:46,835 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 07:51:48,271 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 07:51:48,277 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 07:51:49,102 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 07:51:49,146 INFO L193 MainTranslator]: Completed translation [2018-10-27 07:51:49,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:51:49 WrapperNode [2018-10-27 07:51:49,147 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 07:51:49,148 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 07:51:49,149 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 07:51:49,149 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 07:51:49,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:51:49" (1/1) ... [2018-10-27 07:51:49,228 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:51:49" (1/1) ... [2018-10-27 07:51:49,722 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 07:51:49,723 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 07:51:49,723 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 07:51:49,723 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 07:51:49,736 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:51:49" (1/1) ... [2018-10-27 07:51:49,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:51:49" (1/1) ... [2018-10-27 07:51:49,771 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:51:49" (1/1) ... [2018-10-27 07:51:49,772 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:51:49" (1/1) ... [2018-10-27 07:51:49,891 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:51:49" (1/1) ... [2018-10-27 07:51:49,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:51:49" (1/1) ... [2018-10-27 07:51:49,970 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:51:49" (1/1) ... [2018-10-27 07:51:50,025 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 07:51:50,026 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 07:51:50,026 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 07:51:50,027 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 07:51:50,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:51:49" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 07:51:50,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 07:51:50,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 07:51:50,105 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-27 07:51:50,105 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-27 07:51:50,105 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-27 07:51:50,105 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-27 07:51:50,106 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 07:51:50,106 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 07:51:50,106 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 07:51:50,106 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 07:51:50,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 07:51:50,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 07:51:50,107 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 07:51:50,111 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 07:52:00,476 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 07:52:00,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:52:00 BoogieIcfgContainer [2018-10-27 07:52:00,477 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 07:52:00,478 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 07:52:00,478 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 07:52:00,482 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 07:52:00,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 07:51:46" (1/3) ... [2018-10-27 07:52:00,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3905a86d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:52:00, skipping insertion in model container [2018-10-27 07:52:00,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:51:49" (2/3) ... [2018-10-27 07:52:00,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3905a86d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:52:00, skipping insertion in model container [2018-10-27 07:52:00,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:52:00" (3/3) ... [2018-10-27 07:52:00,486 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label03_true-unreach-call.c [2018-10-27 07:52:00,497 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 07:52:00,508 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 07:52:00,526 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 07:52:00,583 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 07:52:00,583 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 07:52:00,583 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 07:52:00,584 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 07:52:00,584 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 07:52:00,584 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 07:52:00,584 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 07:52:00,584 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 07:52:00,648 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-10-27 07:52:00,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-10-27 07:52:00,658 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 07:52:00,659 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] [2018-10-27 07:52:00,663 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 07:52:00,668 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:52:00,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1009220837, now seen corresponding path program 1 times [2018-10-27 07:52:00,671 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 07:52:00,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:52:00,728 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 07:52:00,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:52:00,728 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 07:52:00,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 07:52:01,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 07:52:01,179 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 07:52:01,179 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 07:52:01,179 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 07:52:01,187 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 07:52:01,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 07:52:01,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 07:52:01,211 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 4 states. [2018-10-27 07:52:19,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 07:52:19,868 INFO L93 Difference]: Finished difference Result 4065 states and 7606 transitions. [2018-10-27 07:52:19,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 07:52:19,873 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 41 [2018-10-27 07:52:19,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 07:52:19,918 INFO L225 Difference]: With dead ends: 4065 [2018-10-27 07:52:19,918 INFO L226 Difference]: Without dead ends: 2939 [2018-10-27 07:52:19,930 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 07:52:19,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2939 states. [2018-10-27 07:52:20,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2939 to 1972. [2018-10-27 07:52:20,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1972 states. [2018-10-27 07:52:20,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1972 states to 1972 states and 3594 transitions. [2018-10-27 07:52:20,100 INFO L78 Accepts]: Start accepts. Automaton has 1972 states and 3594 transitions. Word has length 41 [2018-10-27 07:52:20,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 07:52:20,101 INFO L481 AbstractCegarLoop]: Abstraction has 1972 states and 3594 transitions. [2018-10-27 07:52:20,101 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 07:52:20,101 INFO L276 IsEmpty]: Start isEmpty. Operand 1972 states and 3594 transitions. [2018-10-27 07:52:20,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-10-27 07:52:20,114 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 07:52:20,115 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 07:52:20,115 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 07:52:20,115 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:52:20,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1838928187, now seen corresponding path program 1 times [2018-10-27 07:52:20,116 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 07:52:20,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:52:20,118 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 07:52:20,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:52:20,118 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 07:52:20,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 07:52:20,667 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 07:52:20,667 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 07:52:20,667 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 07:52:20,668 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 07:52:20,670 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 07:52:20,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 07:52:20,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 07:52:20,671 INFO L87 Difference]: Start difference. First operand 1972 states and 3594 transitions. Second operand 6 states. [2018-10-27 07:52:38,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 07:52:38,806 INFO L93 Difference]: Finished difference Result 7229 states and 13602 transitions. [2018-10-27 07:52:38,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 07:52:38,810 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 114 [2018-10-27 07:52:38,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 07:52:38,852 INFO L225 Difference]: With dead ends: 7229 [2018-10-27 07:52:38,853 INFO L226 Difference]: Without dead ends: 5263 [2018-10-27 07:52:38,868 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 07:52:38,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5263 states. [2018-10-27 07:52:39,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5263 to 5234. [2018-10-27 07:52:39,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5234 states. [2018-10-27 07:52:39,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5234 states to 5234 states and 8445 transitions. [2018-10-27 07:52:39,163 INFO L78 Accepts]: Start accepts. Automaton has 5234 states and 8445 transitions. Word has length 114 [2018-10-27 07:52:39,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 07:52:39,165 INFO L481 AbstractCegarLoop]: Abstraction has 5234 states and 8445 transitions. [2018-10-27 07:52:39,165 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 07:52:39,165 INFO L276 IsEmpty]: Start isEmpty. Operand 5234 states and 8445 transitions. [2018-10-27 07:52:39,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-10-27 07:52:39,179 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 07:52:39,179 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 07:52:39,179 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 07:52:39,180 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:52:39,180 INFO L82 PathProgramCache]: Analyzing trace with hash 1607294046, now seen corresponding path program 1 times [2018-10-27 07:52:39,180 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 07:52:39,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:52:39,181 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 07:52:39,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:52:39,181 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 07:52:39,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 07:52:39,396 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 07:52:39,397 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 07:52:39,397 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 07:52:39,397 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 07:52:39,398 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 07:52:39,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 07:52:39,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 07:52:39,398 INFO L87 Difference]: Start difference. First operand 5234 states and 8445 transitions. Second operand 5 states. [2018-10-27 07:52:57,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 07:52:57,257 INFO L93 Difference]: Finished difference Result 15740 states and 26186 transitions. [2018-10-27 07:52:57,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-27 07:52:57,264 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 143 [2018-10-27 07:52:57,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 07:52:57,317 INFO L225 Difference]: With dead ends: 15740 [2018-10-27 07:52:57,318 INFO L226 Difference]: Without dead ends: 10512 [2018-10-27 07:52:57,339 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-27 07:52:57,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10512 states. [2018-10-27 07:52:57,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10512 to 10310. [2018-10-27 07:52:57,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10310 states. [2018-10-27 07:52:57,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10310 states to 10310 states and 15532 transitions. [2018-10-27 07:52:57,867 INFO L78 Accepts]: Start accepts. Automaton has 10310 states and 15532 transitions. Word has length 143 [2018-10-27 07:52:57,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 07:52:57,868 INFO L481 AbstractCegarLoop]: Abstraction has 10310 states and 15532 transitions. [2018-10-27 07:52:57,868 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 07:52:57,868 INFO L276 IsEmpty]: Start isEmpty. Operand 10310 states and 15532 transitions. [2018-10-27 07:52:57,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-10-27 07:52:57,877 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 07:52:57,880 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 07:52:57,880 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 07:52:57,881 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:52:57,882 INFO L82 PathProgramCache]: Analyzing trace with hash -19334682, now seen corresponding path program 1 times [2018-10-27 07:52:57,882 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 07:52:57,883 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:52:57,883 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 07:52:57,883 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:52:57,883 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 07:52:57,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 07:52:58,252 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 07:52:58,253 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 07:52:58,253 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 07:52:58,253 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 07:52:58,254 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 07:52:58,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 07:52:58,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 07:52:58,254 INFO L87 Difference]: Start difference. First operand 10310 states and 15532 transitions. Second operand 5 states. [2018-10-27 07:53:28,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 07:53:28,638 INFO L93 Difference]: Finished difference Result 32124 states and 50298 transitions. [2018-10-27 07:53:28,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-27 07:53:28,639 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 147 [2018-10-27 07:53:28,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 07:53:28,750 INFO L225 Difference]: With dead ends: 32124 [2018-10-27 07:53:28,751 INFO L226 Difference]: Without dead ends: 21820 [2018-10-27 07:53:28,802 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-27 07:53:28,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21820 states. [2018-10-27 07:53:29,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21820 to 21596. [2018-10-27 07:53:29,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21596 states. [2018-10-27 07:53:29,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21596 states to 21596 states and 31843 transitions. [2018-10-27 07:53:29,320 INFO L78 Accepts]: Start accepts. Automaton has 21596 states and 31843 transitions. Word has length 147 [2018-10-27 07:53:29,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 07:53:29,321 INFO L481 AbstractCegarLoop]: Abstraction has 21596 states and 31843 transitions. [2018-10-27 07:53:29,321 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 07:53:29,321 INFO L276 IsEmpty]: Start isEmpty. Operand 21596 states and 31843 transitions. [2018-10-27 07:53:29,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-10-27 07:53:29,324 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 07:53:29,325 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 07:53:29,325 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 07:53:29,325 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:53:29,325 INFO L82 PathProgramCache]: Analyzing trace with hash -389216454, now seen corresponding path program 1 times [2018-10-27 07:53:29,326 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 07:53:29,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:53:29,327 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 07:53:29,327 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:53:29,327 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 07:53:29,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 07:53:29,545 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 07:53:29,546 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 07:53:29,546 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 07:53:29,546 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 07:53:29,546 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 07:53:29,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 07:53:29,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 07:53:29,547 INFO L87 Difference]: Start difference. First operand 21596 states and 31843 transitions. Second operand 4 states. [2018-10-27 07:53:41,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 07:53:41,043 INFO L93 Difference]: Finished difference Result 83826 states and 134128 transitions. [2018-10-27 07:53:41,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 07:53:41,044 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2018-10-27 07:53:41,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 07:53:41,325 INFO L225 Difference]: With dead ends: 83826 [2018-10-27 07:53:41,325 INFO L226 Difference]: Without dead ends: 62236 [2018-10-27 07:53:41,435 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 07:53:41,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62236 states. [2018-10-27 07:53:42,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62236 to 62181. [2018-10-27 07:53:42,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62181 states. [2018-10-27 07:53:42,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62181 states to 62181 states and 90500 transitions. [2018-10-27 07:53:42,803 INFO L78 Accepts]: Start accepts. Automaton has 62181 states and 90500 transitions. Word has length 157 [2018-10-27 07:53:42,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 07:53:42,804 INFO L481 AbstractCegarLoop]: Abstraction has 62181 states and 90500 transitions. [2018-10-27 07:53:42,804 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 07:53:42,804 INFO L276 IsEmpty]: Start isEmpty. Operand 62181 states and 90500 transitions. [2018-10-27 07:53:42,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2018-10-27 07:53:42,843 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 07:53:42,843 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-27 07:53:42,844 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 07:53:42,844 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:53:42,844 INFO L82 PathProgramCache]: Analyzing trace with hash -314239728, now seen corresponding path program 1 times [2018-10-27 07:53:42,844 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 07:53:42,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:53:42,845 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 07:53:42,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:53:42,846 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 07:53:42,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 07:53:43,186 WARN L179 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 07:53:43,851 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 68 proven. 112 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-27 07:53:43,852 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 07:53:43,852 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 07:53:43,853 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 311 with the following transitions: [2018-10-27 07:53:43,856 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2855], [2857], [2860], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3321], [3325], [3329], [3333], [3336], [3341], [3343], [3344], [3355], [3366], [3370], [3374], [3378], [3382], [3386], [3390], [3394], [3398], [3402], [3406], [3410], [3414], [3425], [3429], [3440], [3451], [3455], [3459], [3463], [3467], [3471], [3475], [3479], [3483], [3487], [3498], [3502], [3506], [3517], [3521], [3524], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-10-27 07:53:43,920 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 07:53:43,921 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 07:53:44,563 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 07:53:44,565 INFO L272 AbstractInterpreter]: Visited 155 different actions 155 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-27 07:53:44,589 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:53:44,589 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 07:53:45,234 INFO L227 lantSequenceWeakener]: Weakened 299 states. On average, predicates are now at 71.07% of their original sizes. [2018-10-27 07:53:45,235 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 07:53:45,485 INFO L415 sIntCurrentIteration]: We unified 309 AI predicates to 309 [2018-10-27 07:53:45,485 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 07:53:45,486 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 07:53:45,486 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-10-27 07:53:45,487 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 07:53:45,487 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 07:53:45,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 07:53:45,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 07:53:45,488 INFO L87 Difference]: Start difference. First operand 62181 states and 90500 transitions. Second operand 6 states. Received shutdown request... [2018-10-27 07:55:48,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-27 07:55:48,455 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 07:55:48,461 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 07:55:48,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 07:55:48 BoogieIcfgContainer [2018-10-27 07:55:48,462 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 07:55:48,463 INFO L168 Benchmark]: Toolchain (without parser) took 241835.82 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -475.3 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-10-27 07:55:48,464 INFO L168 Benchmark]: CDTParser took 0.20 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. [2018-10-27 07:55:48,465 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2515.12 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-10-27 07:55:48,466 INFO L168 Benchmark]: Boogie Procedure Inliner took 574.20 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 823.1 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 73.1 MB. Max. memory is 7.1 GB. [2018-10-27 07:55:48,467 INFO L168 Benchmark]: Boogie Preprocessor took 302.91 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: 44.9 MB). Peak memory consumption was 44.9 MB. Max. memory is 7.1 GB. [2018-10-27 07:55:48,468 INFO L168 Benchmark]: RCFGBuilder took 10450.92 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 196.6 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: -18.6 MB). Peak memory consumption was 666.5 MB. Max. memory is 7.1 GB. [2018-10-27 07:55:48,469 INFO L168 Benchmark]: TraceAbstraction took 227983.98 ms. Allocated memory was 2.6 GB in the beginning and 4.2 GB in the end (delta: 1.7 GB). Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 334.7 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-10-27 07:55:48,474 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2515.12 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 574.20 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 823.1 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 73.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 302.91 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: 44.9 MB). Peak memory consumption was 44.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10450.92 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 196.6 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: -18.6 MB). Peak memory consumption was 666.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 227983.98 ms. Allocated memory was 2.6 GB in the beginning and 4.2 GB in the end (delta: 1.7 GB). Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 334.7 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 114]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 114). Cancelled while BasicCegarLoop was constructing difference of abstraction (62181states) and FLOYD_HOARE automaton (currently 6 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (51568 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 227.8s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 220.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2690 SDtfs, 16729 SDslu, 2572 SDs, 0 SdLazy, 31337 SolverSat, 7856 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 190.9s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 349 GetRequests, 320 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=62181occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.7s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.998469285510231 AbsIntWeakeningRatio, 0.09061488673139159 AbsIntAvgWeakeningVarsNumRemoved, 16.414239482200646 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.8s AutomataMinimizationTime, 5 MinimizatonAttempts, 1477 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 912 NumberOfCodeBlocks, 912 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 906 ConstructedInterpolants, 0 QuantifiedInterpolants, 460833 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 209/321 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown