java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label01_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 20:24:24,535 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 20:24:24,537 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 20:24:24,555 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 20:24:24,555 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 20:24:24,557 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 20:24:24,559 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 20:24:24,562 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 20:24:24,563 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 20:24:24,573 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 20:24:24,574 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 20:24:24,575 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 20:24:24,578 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 20:24:24,580 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 20:24:24,583 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 20:24:24,584 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 20:24:24,585 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 20:24:24,590 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 20:24:24,592 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 20:24:24,598 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 20:24:24,599 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 20:24:24,600 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 20:24:24,603 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 20:24:24,603 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 20:24:24,604 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 20:24:24,605 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 20:24:24,606 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 20:24:24,608 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 20:24:24,609 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 20:24:24,612 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 20:24:24,612 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 20:24:24,614 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 20:24:24,614 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 20:24:24,614 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 20:24:24,617 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 20:24:24,617 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 20:24:24,618 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-07 20:24:24,645 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 20:24:24,646 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 20:24:24,646 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 20:24:24,647 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 20:24:24,647 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 20:24:24,647 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 20:24:24,648 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-07 20:24:24,648 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 20:24:24,648 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 20:24:24,648 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 20:24:24,648 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 20:24:24,649 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 20:24:24,649 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 20:24:24,650 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 20:24:24,651 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 20:24:24,651 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 20:24:24,651 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 20:24:24,651 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 20:24:24,652 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 20:24:24,652 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 20:24:24,652 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 20:24:24,652 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 20:24:24,653 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 20:24:24,653 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 20:24:24,653 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 20:24:24,653 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 20:24:24,654 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 20:24:24,654 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 20:24:24,654 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 20:24:24,654 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 20:24:24,654 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 20:24:24,655 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 20:24:24,655 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 20:24:24,655 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 20:24:24,655 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 20:24:24,722 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 20:24:24,739 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 20:24:24,742 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 20:24:24,744 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 20:24:24,745 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 20:24:24,746 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label01_true-unreach-call.c [2018-11-07 20:24:24,816 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5622b9e54/6f070942fdf245b682fccd11e59c55a8/FLAG310830c37 [2018-11-07 20:24:25,598 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 20:24:25,599 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label01_true-unreach-call.c [2018-11-07 20:24:25,631 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5622b9e54/6f070942fdf245b682fccd11e59c55a8/FLAG310830c37 [2018-11-07 20:24:25,647 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5622b9e54/6f070942fdf245b682fccd11e59c55a8 [2018-11-07 20:24:25,658 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 20:24:25,660 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 20:24:25,661 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 20:24:25,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 20:24:25,666 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 20:24:25,667 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:24:25" (1/1) ... [2018-11-07 20:24:25,670 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60fab143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:24:25, skipping insertion in model container [2018-11-07 20:24:25,670 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:24:25" (1/1) ... [2018-11-07 20:24:25,681 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 20:24:25,863 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 20:24:27,460 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 20:24:27,465 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 20:24:28,254 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 20:24:28,299 INFO L193 MainTranslator]: Completed translation [2018-11-07 20:24:28,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:24:28 WrapperNode [2018-11-07 20:24:28,300 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 20:24:28,301 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 20:24:28,301 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 20:24:28,302 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 20:24:28,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:24:28" (1/1) ... [2018-11-07 20:24:28,749 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:24:28" (1/1) ... [2018-11-07 20:24:28,758 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 20:24:28,759 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 20:24:28,759 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 20:24:28,759 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 20:24:28,770 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:24:28" (1/1) ... [2018-11-07 20:24:28,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:24:28" (1/1) ... [2018-11-07 20:24:28,815 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:24:28" (1/1) ... [2018-11-07 20:24:28,815 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:24:28" (1/1) ... [2018-11-07 20:24:28,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:24:28" (1/1) ... [2018-11-07 20:24:28,968 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:24:28" (1/1) ... [2018-11-07 20:24:29,000 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:24:28" (1/1) ... [2018-11-07 20:24:29,028 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 20:24:29,028 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 20:24:29,029 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 20:24:29,029 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 20:24:29,030 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:24:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 20:24:29,088 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 20:24:29,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 20:24:29,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 20:24:29,089 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-07 20:24:29,089 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-07 20:24:29,089 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 20:24:29,089 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 20:24:29,090 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 20:24:29,090 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 20:24:29,090 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 20:24:29,090 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 20:24:29,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 20:24:29,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 20:24:29,091 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 20:24:29,091 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 20:24:38,613 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 20:24:38,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:24:38 BoogieIcfgContainer [2018-11-07 20:24:38,614 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 20:24:38,615 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 20:24:38,616 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 20:24:38,619 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 20:24:38,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:24:25" (1/3) ... [2018-11-07 20:24:38,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c1ba26e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:24:38, skipping insertion in model container [2018-11-07 20:24:38,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:24:28" (2/3) ... [2018-11-07 20:24:38,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c1ba26e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:24:38, skipping insertion in model container [2018-11-07 20:24:38,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:24:38" (3/3) ... [2018-11-07 20:24:38,622 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label01_true-unreach-call.c [2018-11-07 20:24:38,633 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 20:24:38,643 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 20:24:38,661 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 20:24:38,717 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 20:24:38,717 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 20:24:38,717 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 20:24:38,717 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 20:24:38,717 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 20:24:38,718 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 20:24:38,718 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 20:24:38,718 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 20:24:38,774 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-11-07 20:24:38,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-11-07 20:24:38,785 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:24:38,786 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] [2018-11-07 20:24:38,788 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:24:38,794 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:24:38,794 INFO L82 PathProgramCache]: Analyzing trace with hash 980545676, now seen corresponding path program 1 times [2018-11-07 20:24:38,796 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:24:38,841 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:24:38,841 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:24:38,841 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:24:38,842 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:24:38,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:24:39,335 WARN L179 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 20:24:39,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:24:39,452 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:24:39,452 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 20:24:39,452 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:24:39,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 20:24:39,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 20:24:39,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 20:24:39,475 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-11-07 20:24:47,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:24:47,315 INFO L93 Difference]: Finished difference Result 3097 states and 5707 transitions. [2018-11-07 20:24:47,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 20:24:47,317 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2018-11-07 20:24:47,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:24:47,353 INFO L225 Difference]: With dead ends: 3097 [2018-11-07 20:24:47,353 INFO L226 Difference]: Without dead ends: 1975 [2018-11-07 20:24:47,364 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 20:24:47,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2018-11-07 20:24:47,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1974. [2018-11-07 20:24:47,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1974 states. [2018-11-07 20:24:47,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1974 states to 1974 states and 3284 transitions. [2018-11-07 20:24:47,532 INFO L78 Accepts]: Start accepts. Automaton has 1974 states and 3284 transitions. Word has length 56 [2018-11-07 20:24:47,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:24:47,533 INFO L480 AbstractCegarLoop]: Abstraction has 1974 states and 3284 transitions. [2018-11-07 20:24:47,533 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 20:24:47,534 INFO L276 IsEmpty]: Start isEmpty. Operand 1974 states and 3284 transitions. [2018-11-07 20:24:47,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-11-07 20:24:47,542 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:24:47,543 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:24:47,543 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:24:47,543 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:24:47,544 INFO L82 PathProgramCache]: Analyzing trace with hash 1287580412, now seen corresponding path program 1 times [2018-11-07 20:24:47,544 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:24:47,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:24:47,545 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:24:47,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:24:47,546 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:24:47,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:24:47,942 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:24:47,942 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:24:47,943 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 20:24:47,943 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:24:47,948 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 20:24:47,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 20:24:47,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 20:24:47,949 INFO L87 Difference]: Start difference. First operand 1974 states and 3284 transitions. Second operand 5 states. [2018-11-07 20:25:02,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:25:02,549 INFO L93 Difference]: Finished difference Result 5733 states and 9688 transitions. [2018-11-07 20:25:02,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 20:25:02,551 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 132 [2018-11-07 20:25:02,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:25:02,576 INFO L225 Difference]: With dead ends: 5733 [2018-11-07 20:25:02,576 INFO L226 Difference]: Without dead ends: 3765 [2018-11-07 20:25:02,583 INFO L604 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 [2018-11-07 20:25:02,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3765 states. [2018-11-07 20:25:02,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3765 to 3682. [2018-11-07 20:25:02,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3682 states. [2018-11-07 20:25:02,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3682 states to 3682 states and 5656 transitions. [2018-11-07 20:25:02,704 INFO L78 Accepts]: Start accepts. Automaton has 3682 states and 5656 transitions. Word has length 132 [2018-11-07 20:25:02,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:25:02,705 INFO L480 AbstractCegarLoop]: Abstraction has 3682 states and 5656 transitions. [2018-11-07 20:25:02,705 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 20:25:02,705 INFO L276 IsEmpty]: Start isEmpty. Operand 3682 states and 5656 transitions. [2018-11-07 20:25:02,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-11-07 20:25:02,719 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:25:02,719 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:25:02,719 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:25:02,720 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:25:02,721 INFO L82 PathProgramCache]: Analyzing trace with hash 800617696, now seen corresponding path program 1 times [2018-11-07 20:25:02,721 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:25:02,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:25:02,723 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:25:02,723 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:25:02,723 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:25:02,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:25:02,974 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:25:02,974 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:25:02,975 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 20:25:02,975 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:25:02,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 20:25:02,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 20:25:02,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 20:25:02,976 INFO L87 Difference]: Start difference. First operand 3682 states and 5656 transitions. Second operand 5 states. [2018-11-07 20:25:20,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:25:20,133 INFO L93 Difference]: Finished difference Result 13649 states and 21728 transitions. [2018-11-07 20:25:20,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 20:25:20,135 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 146 [2018-11-07 20:25:20,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:25:20,195 INFO L225 Difference]: With dead ends: 13649 [2018-11-07 20:25:20,196 INFO L226 Difference]: Without dead ends: 9973 [2018-11-07 20:25:20,220 INFO L604 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 [2018-11-07 20:25:20,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9973 states. [2018-11-07 20:25:20,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9973 to 9785. [2018-11-07 20:25:20,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9785 states. [2018-11-07 20:25:20,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9785 states to 9785 states and 14481 transitions. [2018-11-07 20:25:20,503 INFO L78 Accepts]: Start accepts. Automaton has 9785 states and 14481 transitions. Word has length 146 [2018-11-07 20:25:20,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:25:20,504 INFO L480 AbstractCegarLoop]: Abstraction has 9785 states and 14481 transitions. [2018-11-07 20:25:20,504 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 20:25:20,504 INFO L276 IsEmpty]: Start isEmpty. Operand 9785 states and 14481 transitions. [2018-11-07 20:25:20,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2018-11-07 20:25:20,512 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:25:20,512 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:25:20,512 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:25:20,513 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:25:20,513 INFO L82 PathProgramCache]: Analyzing trace with hash -2020564548, now seen corresponding path program 1 times [2018-11-07 20:25:20,513 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:25:20,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:25:20,515 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:25:20,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:25:20,515 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:25:20,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:25:20,858 WARN L179 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 20:25:20,924 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:25:20,925 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:25:20,925 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 20:25:20,925 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:25:20,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 20:25:20,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 20:25:20,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 20:25:20,926 INFO L87 Difference]: Start difference. First operand 9785 states and 14481 transitions. Second operand 6 states. [2018-11-07 20:25:33,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:25:33,244 INFO L93 Difference]: Finished difference Result 34095 states and 53559 transitions. [2018-11-07 20:25:33,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 20:25:33,248 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 164 [2018-11-07 20:25:33,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:25:33,356 INFO L225 Difference]: With dead ends: 34095 [2018-11-07 20:25:33,357 INFO L226 Difference]: Without dead ends: 24316 [2018-11-07 20:25:33,430 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 20:25:33,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24316 states. [2018-11-07 20:25:33,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24316 to 24095. [2018-11-07 20:25:33,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24095 states. [2018-11-07 20:25:34,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24095 states to 24095 states and 33907 transitions. [2018-11-07 20:25:34,027 INFO L78 Accepts]: Start accepts. Automaton has 24095 states and 33907 transitions. Word has length 164 [2018-11-07 20:25:34,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:25:34,027 INFO L480 AbstractCegarLoop]: Abstraction has 24095 states and 33907 transitions. [2018-11-07 20:25:34,027 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 20:25:34,028 INFO L276 IsEmpty]: Start isEmpty. Operand 24095 states and 33907 transitions. [2018-11-07 20:25:34,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2018-11-07 20:25:34,035 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:25:34,035 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:25:34,036 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:25:34,036 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:25:34,036 INFO L82 PathProgramCache]: Analyzing trace with hash -744065737, now seen corresponding path program 1 times [2018-11-07 20:25:34,036 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:25:34,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:25:34,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:25:34,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:25:34,038 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:25:34,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:25:34,321 WARN L179 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 20:25:34,714 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:25:34,714 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:25:34,714 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 20:25:34,715 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:25:34,715 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 20:25:34,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 20:25:34,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 20:25:34,718 INFO L87 Difference]: Start difference. First operand 24095 states and 33907 transitions. Second operand 6 states. [2018-11-07 20:25:43,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:25:43,084 INFO L93 Difference]: Finished difference Result 61325 states and 95892 transitions. [2018-11-07 20:25:43,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 20:25:43,085 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 175 [2018-11-07 20:25:43,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:25:43,246 INFO L225 Difference]: With dead ends: 61325 [2018-11-07 20:25:43,246 INFO L226 Difference]: Without dead ends: 37236 [2018-11-07 20:25:43,298 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 20:25:43,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37236 states. [2018-11-07 20:25:44,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37236 to 37038. [2018-11-07 20:25:44,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37038 states. [2018-11-07 20:25:44,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37038 states to 37038 states and 52767 transitions. [2018-11-07 20:25:44,203 INFO L78 Accepts]: Start accepts. Automaton has 37038 states and 52767 transitions. Word has length 175 [2018-11-07 20:25:44,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:25:44,203 INFO L480 AbstractCegarLoop]: Abstraction has 37038 states and 52767 transitions. [2018-11-07 20:25:44,203 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 20:25:44,204 INFO L276 IsEmpty]: Start isEmpty. Operand 37038 states and 52767 transitions. [2018-11-07 20:25:44,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2018-11-07 20:25:44,212 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:25:44,212 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:25:44,213 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:25:44,213 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:25:44,213 INFO L82 PathProgramCache]: Analyzing trace with hash 787887912, now seen corresponding path program 1 times [2018-11-07 20:25:44,213 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:25:44,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:25:44,214 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:25:44,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:25:44,214 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:25:44,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:25:44,488 WARN L179 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 20:25:44,852 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:25:44,853 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:25:44,853 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 20:25:44,853 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:25:44,854 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 20:25:44,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 20:25:44,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 20:25:44,854 INFO L87 Difference]: Start difference. First operand 37038 states and 52767 transitions. Second operand 6 states. [2018-11-07 20:25:53,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:25:53,295 INFO L93 Difference]: Finished difference Result 81264 states and 119246 transitions. [2018-11-07 20:25:53,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 20:25:53,296 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 203 [2018-11-07 20:25:53,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:25:53,457 INFO L225 Difference]: With dead ends: 81264 [2018-11-07 20:25:53,457 INFO L226 Difference]: Without dead ends: 44232 [2018-11-07 20:25:53,533 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 20:25:53,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44232 states. [2018-11-07 20:25:54,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44232 to 44131. [2018-11-07 20:25:54,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44131 states. [2018-11-07 20:25:54,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44131 states to 44131 states and 60145 transitions. [2018-11-07 20:25:54,396 INFO L78 Accepts]: Start accepts. Automaton has 44131 states and 60145 transitions. Word has length 203 [2018-11-07 20:25:54,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:25:54,396 INFO L480 AbstractCegarLoop]: Abstraction has 44131 states and 60145 transitions. [2018-11-07 20:25:54,396 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 20:25:54,397 INFO L276 IsEmpty]: Start isEmpty. Operand 44131 states and 60145 transitions. [2018-11-07 20:25:54,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2018-11-07 20:25:54,416 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:25:54,417 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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] [2018-11-07 20:25:54,417 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:25:54,417 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:25:54,417 INFO L82 PathProgramCache]: Analyzing trace with hash 334178010, now seen corresponding path program 1 times [2018-11-07 20:25:54,418 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:25:54,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:25:54,419 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:25:54,419 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:25:54,419 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:25:54,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:25:54,699 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 172 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:25:54,699 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:25:54,699 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:25:54,700 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 254 with the following transitions: [2018-11-07 20:25:54,704 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], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2975], [2977], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3151], [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], [3344], [3355], [3358], [3361], [3365], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-11-07 20:25:54,758 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:25:54,758 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:25:55,716 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:25:55,718 INFO L272 AbstractInterpreter]: Visited 124 different actions 124 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-11-07 20:25:55,774 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:25:55,775 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:25:56,820 INFO L227 lantSequenceWeakener]: Weakened 229 states. On average, predicates are now at 71.62% of their original sizes. [2018-11-07 20:25:56,821 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:25:57,747 INFO L415 sIntCurrentIteration]: We unified 252 AI predicates to 252 [2018-11-07 20:25:57,747 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:25:57,748 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:25:57,748 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2018-11-07 20:25:57,749 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:25:57,749 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-07 20:25:57,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-07 20:25:57,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-11-07 20:25:57,750 INFO L87 Difference]: Start difference. First operand 44131 states and 60145 transitions. Second operand 11 states. [2018-11-07 20:26:12,555 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:27:15,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:27:15,249 INFO L93 Difference]: Finished difference Result 89065 states and 121184 transitions. [2018-11-07 20:27:15,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-07 20:27:15,250 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 253 [2018-11-07 20:27:15,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:27:15,397 INFO L225 Difference]: With dead ends: 89065 [2018-11-07 20:27:15,397 INFO L226 Difference]: Without dead ends: 44940 [2018-11-07 20:27:15,509 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 257 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2018-11-07 20:27:15,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44940 states. [2018-11-07 20:27:16,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44940 to 44935. [2018-11-07 20:27:16,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44935 states. [2018-11-07 20:27:16,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44935 states to 44935 states and 60960 transitions. [2018-11-07 20:27:16,403 INFO L78 Accepts]: Start accepts. Automaton has 44935 states and 60960 transitions. Word has length 253 [2018-11-07 20:27:16,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:27:16,404 INFO L480 AbstractCegarLoop]: Abstraction has 44935 states and 60960 transitions. [2018-11-07 20:27:16,404 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-07 20:27:16,404 INFO L276 IsEmpty]: Start isEmpty. Operand 44935 states and 60960 transitions. [2018-11-07 20:27:16,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2018-11-07 20:27:16,414 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:27:16,414 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:27:16,415 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:27:16,415 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:27:16,415 INFO L82 PathProgramCache]: Analyzing trace with hash -1658243276, now seen corresponding path program 1 times [2018-11-07 20:27:16,415 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:27:16,416 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:27:16,417 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:27:16,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:27:16,418 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:27:16,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:27:16,882 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:27:16,882 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:27:16,882 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:27:16,883 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 280 with the following transitions: [2018-11-07 20:27:16,884 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], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2975], [2977], [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], [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], [3525], [3529], [3533], [3537], [3541], [3545], [3556], [3560], [3564], [3568], [3572], [3576], [3580], [3591], [3595], [3599], [3603], [3614], [3618], [3622], [3626], [3630], [3634], [3638], [3642], [3646], [3650], [3654], [3658], [3662], [3666], [3670], [3674], [3678], [3682], [3686], [3690], [3694], [3698], [3709], [3713], [3717], [3721], [3725], [3729], [3733], [3737], [3741], [3745], [3749], [3753], [3757], [3768], [3772], [3776], [3780], [3784], [3788], [3792], [3796], [3800], [3804], [3815], [3819], [3823], [3827], [3831], [3835], [3839], [3843], [3847], [3851], [3862], [3865], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-11-07 20:27:16,894 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:27:16,894 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:27:17,664 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:27:18,483 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:27:18,483 INFO L272 AbstractInterpreter]: Visited 230 different actions 678 times. Merged at 5 different actions 10 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-07 20:27:18,504 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:27:18,504 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:27:19,001 INFO L227 lantSequenceWeakener]: Weakened 276 states. On average, predicates are now at 73.25% of their original sizes. [2018-11-07 20:27:19,002 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:27:19,252 INFO L415 sIntCurrentIteration]: We unified 278 AI predicates to 278 [2018-11-07 20:27:19,252 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:27:19,252 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:27:19,253 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [7] total 15 [2018-11-07 20:27:19,253 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:27:19,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-07 20:27:19,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-07 20:27:19,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-11-07 20:27:19,255 INFO L87 Difference]: Start difference. First operand 44935 states and 60960 transitions. Second operand 10 states. Received shutdown request... [2018-11-07 20:27:48,824 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-07 20:27:48,824 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 20:27:48,829 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 20:27:48,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 08:27:48 BoogieIcfgContainer [2018-11-07 20:27:48,830 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 20:27:48,831 INFO L168 Benchmark]: Toolchain (without parser) took 203171.82 ms. Allocated memory was 1.5 GB in the beginning and 5.7 GB in the end (delta: 4.2 GB). Free memory was 1.4 GB in the beginning and 2.8 GB in the end (delta: -1.4 GB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. [2018-11-07 20:27:48,832 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 20:27:48,833 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2639.23 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. [2018-11-07 20:27:48,834 INFO L168 Benchmark]: Boogie Procedure Inliner took 457.12 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 798.0 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 67.6 MB. Max. memory is 7.1 GB. [2018-11-07 20:27:48,835 INFO L168 Benchmark]: Boogie Preprocessor took 269.44 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 38.8 MB). Peak memory consumption was 38.8 MB. Max. memory is 7.1 GB. [2018-11-07 20:27:48,835 INFO L168 Benchmark]: RCFGBuilder took 9586.13 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 205.5 MB). Free memory was 2.2 GB in the beginning and 2.3 GB in the end (delta: -50.6 MB). Peak memory consumption was 706.6 MB. Max. memory is 7.1 GB. [2018-11-07 20:27:48,836 INFO L168 Benchmark]: TraceAbstraction took 190214.79 ms. Allocated memory was 2.5 GB in the beginning and 5.7 GB in the end (delta: 3.2 GB). Free memory was 2.3 GB in the beginning and 2.8 GB in the end (delta: -531.6 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-11-07 20:27:48,842 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 2639.23 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 457.12 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 798.0 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 67.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 269.44 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 38.8 MB). Peak memory consumption was 38.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9586.13 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 205.5 MB). Free memory was 2.2 GB in the beginning and 2.3 GB in the end (delta: -50.6 MB). Peak memory consumption was 706.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 190214.79 ms. Allocated memory was 2.5 GB in the beginning and 5.7 GB in the end (delta: 3.2 GB). Free memory was 2.3 GB in the beginning and 2.8 GB in the end (delta: -531.6 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 159]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 159). Cancelled while BasicCegarLoop was constructing difference of abstraction (44935states) and FLOYD_HOARE automaton (currently 15 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (26922 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 190.1s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 176.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4522 SDtfs, 24051 SDslu, 3970 SDs, 0 SdLazy, 42074 SolverSat, 8175 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 103.4s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 595 GetRequests, 527 SyntacticMatches, 5 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44935occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.6s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9982600971628864 AbsIntWeakeningRatio, 0.09622641509433963 AbsIntAvgWeakeningVarsNumRemoved, 10.450943396226416 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 3.8s AutomataMinimizationTime, 7 MinimizatonAttempts, 797 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 1408 NumberOfCodeBlocks, 1408 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1400 ConstructedInterpolants, 0 QuantifiedInterpolants, 934146 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 417/468 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown