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_label10_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-25 01:41:17,747 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-25 01:41:17,749 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-25 01:41:17,760 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-25 01:41:17,761 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-25 01:41:17,762 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-25 01:41:17,763 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-25 01:41:17,765 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-25 01:41:17,767 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-25 01:41:17,768 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-25 01:41:17,768 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-25 01:41:17,769 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-25 01:41:17,770 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-25 01:41:17,771 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-25 01:41:17,772 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-25 01:41:17,773 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-25 01:41:17,773 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-25 01:41:17,775 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-25 01:41:17,777 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-25 01:41:17,779 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-25 01:41:17,780 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-25 01:41:17,782 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-25 01:41:17,784 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-25 01:41:17,784 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-25 01:41:17,785 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-25 01:41:17,786 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-25 01:41:17,787 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-25 01:41:17,788 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-25 01:41:17,789 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-25 01:41:17,790 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-25 01:41:17,790 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-25 01:41:17,791 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-25 01:41:17,791 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-25 01:41:17,791 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-25 01:41:17,792 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-25 01:41:17,793 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-25 01:41:17,794 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 [2018-10-25 01:41:17,809 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-25 01:41:17,809 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-25 01:41:17,810 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-25 01:41:17,811 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-25 01:41:17,811 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-25 01:41:17,811 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-25 01:41:17,812 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-25 01:41:17,812 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-25 01:41:17,812 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-25 01:41:17,812 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-25 01:41:17,813 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-25 01:41:17,813 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-25 01:41:17,813 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-25 01:41:17,813 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-25 01:41:17,814 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-25 01:41:17,814 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-25 01:41:17,815 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-25 01:41:17,815 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-25 01:41:17,815 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-25 01:41:17,815 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-25 01:41:17,816 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-25 01:41:17,816 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-25 01:41:17,816 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-25 01:41:17,816 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-25 01:41:17,817 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-25 01:41:17,817 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-25 01:41:17,817 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-25 01:41:17,817 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-25 01:41:17,818 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-25 01:41:17,818 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-25 01:41:17,818 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-25 01:41:17,818 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-25 01:41:17,818 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-25 01:41:17,819 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-25 01:41:17,819 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-25 01:41:17,819 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-25 01:41:17,872 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-25 01:41:17,885 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-25 01:41:17,889 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-25 01:41:17,890 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-25 01:41:17,891 INFO L276 PluginConnector]: CDTParser initialized [2018-10-25 01:41:17,892 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label10_true-unreach-call.c [2018-10-25 01:41:17,951 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c98bcfe92/7851aa8107054b1497e9974934ecf585/FLAGdb6e815ec [2018-10-25 01:41:18,810 INFO L298 CDTParser]: Found 1 translation units. [2018-10-25 01:41:18,811 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label10_true-unreach-call.c [2018-10-25 01:41:18,850 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c98bcfe92/7851aa8107054b1497e9974934ecf585/FLAGdb6e815ec [2018-10-25 01:41:18,872 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c98bcfe92/7851aa8107054b1497e9974934ecf585 [2018-10-25 01:41:18,886 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-25 01:41:18,888 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-25 01:41:18,889 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-25 01:41:18,889 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-25 01:41:18,898 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-25 01:41:18,899 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 01:41:18" (1/1) ... [2018-10-25 01:41:18,903 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26998074 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:41:18, skipping insertion in model container [2018-10-25 01:41:18,903 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 01:41:18" (1/1) ... [2018-10-25 01:41:18,914 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-25 01:41:19,123 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-25 01:41:20,863 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 01:41:20,868 INFO L189 MainTranslator]: Completed pre-run [2018-10-25 01:41:21,637 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 01:41:21,681 INFO L193 MainTranslator]: Completed translation [2018-10-25 01:41:21,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:41:21 WrapperNode [2018-10-25 01:41:21,682 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-25 01:41:21,683 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-25 01:41:21,683 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-25 01:41:21,684 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-25 01:41:21,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:41:21" (1/1) ... [2018-10-25 01:41:21,766 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:41:21" (1/1) ... [2018-10-25 01:41:22,321 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-25 01:41:22,321 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-25 01:41:22,321 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-25 01:41:22,322 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-25 01:41:22,338 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:41:21" (1/1) ... [2018-10-25 01:41:22,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:41:21" (1/1) ... [2018-10-25 01:41:22,377 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:41:21" (1/1) ... [2018-10-25 01:41:22,377 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:41:21" (1/1) ... [2018-10-25 01:41:22,511 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:41:21" (1/1) ... [2018-10-25 01:41:22,560 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:41:21" (1/1) ... [2018-10-25 01:41:22,600 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:41:21" (1/1) ... [2018-10-25 01:41:22,646 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-25 01:41:22,646 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-25 01:41:22,646 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-25 01:41:22,647 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-25 01:41:22,648 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:41:21" (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 [2018-10-25 01:41:22,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-25 01:41:22,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-25 01:41:22,720 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-25 01:41:22,720 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-25 01:41:22,720 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-25 01:41:22,721 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-25 01:41:22,721 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-25 01:41:22,721 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-25 01:41:22,721 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-25 01:41:22,721 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-25 01:41:22,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-25 01:41:22,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-25 01:41:22,722 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-25 01:41:22,725 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-25 01:41:33,475 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-25 01:41:33,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 01:41:33 BoogieIcfgContainer [2018-10-25 01:41:33,476 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-25 01:41:33,477 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-25 01:41:33,477 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-25 01:41:33,480 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-25 01:41:33,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 01:41:18" (1/3) ... [2018-10-25 01:41:33,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@585d5c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 01:41:33, skipping insertion in model container [2018-10-25 01:41:33,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:41:21" (2/3) ... [2018-10-25 01:41:33,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@585d5c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 01:41:33, skipping insertion in model container [2018-10-25 01:41:33,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 01:41:33" (3/3) ... [2018-10-25 01:41:33,484 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label10_true-unreach-call.c [2018-10-25 01:41:33,494 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-25 01:41:33,503 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-25 01:41:33,521 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-25 01:41:33,568 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-25 01:41:33,568 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-25 01:41:33,568 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-25 01:41:33,568 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-25 01:41:33,568 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-25 01:41:33,568 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-25 01:41:33,569 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-25 01:41:33,569 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-25 01:41:33,609 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-10-25 01:41:33,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-10-25 01:41:33,619 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:41:33,620 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] [2018-10-25 01:41:33,622 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:41:33,628 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:41:33,628 INFO L82 PathProgramCache]: Analyzing trace with hash -2099536220, now seen corresponding path program 1 times [2018-10-25 01:41:33,631 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:41:33,684 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:41:33,684 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:41:33,684 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:41:33,684 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:41:33,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:41:34,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:41:34,158 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 01:41:34,158 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-25 01:41:34,159 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:41:34,165 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-25 01:41:34,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-25 01:41:34,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-25 01:41:34,186 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 4 states. [2018-10-25 01:41:53,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:41:53,029 INFO L93 Difference]: Finished difference Result 4105 states and 7669 transitions. [2018-10-25 01:41:53,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-25 01:41:53,031 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2018-10-25 01:41:53,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:41:53,086 INFO L225 Difference]: With dead ends: 4105 [2018-10-25 01:41:53,086 INFO L226 Difference]: Without dead ends: 2979 [2018-10-25 01:41:53,103 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 [2018-10-25 01:41:53,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2979 states. [2018-10-25 01:41:53,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2979 to 2849. [2018-10-25 01:41:53,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2849 states. [2018-10-25 01:41:53,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2849 states to 2849 states and 5075 transitions. [2018-10-25 01:41:53,318 INFO L78 Accepts]: Start accepts. Automaton has 2849 states and 5075 transitions. Word has length 54 [2018-10-25 01:41:53,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:41:53,319 INFO L481 AbstractCegarLoop]: Abstraction has 2849 states and 5075 transitions. [2018-10-25 01:41:53,319 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-25 01:41:53,319 INFO L276 IsEmpty]: Start isEmpty. Operand 2849 states and 5075 transitions. [2018-10-25 01:41:53,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-10-25 01:41:53,336 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:41:53,338 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:41:53,338 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:41:53,339 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:41:53,339 INFO L82 PathProgramCache]: Analyzing trace with hash 5864073, now seen corresponding path program 1 times [2018-10-25 01:41:53,339 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:41:53,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:41:53,341 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:41:53,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:41:53,342 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:41:53,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:41:53,750 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:41:53,751 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 01:41:53,751 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-25 01:41:53,751 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:41:53,753 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 01:41:53,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 01:41:53,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 01:41:53,754 INFO L87 Difference]: Start difference. First operand 2849 states and 5075 transitions. Second operand 6 states. [2018-10-25 01:42:12,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:42:12,947 INFO L93 Difference]: Finished difference Result 10635 states and 19580 transitions. [2018-10-25 01:42:12,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-25 01:42:12,948 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 125 [2018-10-25 01:42:12,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:42:12,992 INFO L225 Difference]: With dead ends: 10635 [2018-10-25 01:42:12,993 INFO L226 Difference]: Without dead ends: 7792 [2018-10-25 01:42:13,012 INFO L605 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 [2018-10-25 01:42:13,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7792 states. [2018-10-25 01:42:13,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7792 to 7729. [2018-10-25 01:42:13,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7729 states. [2018-10-25 01:42:13,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7729 states to 7729 states and 12373 transitions. [2018-10-25 01:42:13,223 INFO L78 Accepts]: Start accepts. Automaton has 7729 states and 12373 transitions. Word has length 125 [2018-10-25 01:42:13,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:42:13,224 INFO L481 AbstractCegarLoop]: Abstraction has 7729 states and 12373 transitions. [2018-10-25 01:42:13,224 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 01:42:13,224 INFO L276 IsEmpty]: Start isEmpty. Operand 7729 states and 12373 transitions. [2018-10-25 01:42:13,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-10-25 01:42:13,229 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:42:13,229 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:42:13,230 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:42:13,230 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:42:13,230 INFO L82 PathProgramCache]: Analyzing trace with hash 652308344, now seen corresponding path program 1 times [2018-10-25 01:42:13,230 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:42:13,231 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:42:13,231 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:42:13,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:42:13,232 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:42:13,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:42:13,508 WARN L179 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-25 01:42:13,739 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:42:13,739 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 01:42:13,739 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-25 01:42:13,739 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:42:13,740 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 01:42:13,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 01:42:13,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 01:42:13,741 INFO L87 Difference]: Start difference. First operand 7729 states and 12373 transitions. Second operand 6 states. [2018-10-25 01:42:31,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:42:31,014 INFO L93 Difference]: Finished difference Result 21344 states and 35686 transitions. [2018-10-25 01:42:31,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-25 01:42:31,015 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 128 [2018-10-25 01:42:31,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:42:31,092 INFO L225 Difference]: With dead ends: 21344 [2018-10-25 01:42:31,096 INFO L226 Difference]: Without dead ends: 13621 [2018-10-25 01:42:31,130 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 [2018-10-25 01:42:31,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13621 states. [2018-10-25 01:42:31,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13621 to 13540. [2018-10-25 01:42:31,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13540 states. [2018-10-25 01:42:31,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13540 states to 13540 states and 20967 transitions. [2018-10-25 01:42:31,456 INFO L78 Accepts]: Start accepts. Automaton has 13540 states and 20967 transitions. Word has length 128 [2018-10-25 01:42:31,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:42:31,457 INFO L481 AbstractCegarLoop]: Abstraction has 13540 states and 20967 transitions. [2018-10-25 01:42:31,457 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 01:42:31,457 INFO L276 IsEmpty]: Start isEmpty. Operand 13540 states and 20967 transitions. [2018-10-25 01:42:31,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2018-10-25 01:42:31,466 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:42:31,466 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:42:31,466 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:42:31,467 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:42:31,467 INFO L82 PathProgramCache]: Analyzing trace with hash 1098248393, now seen corresponding path program 1 times [2018-10-25 01:42:31,467 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:42:31,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:42:31,468 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:42:31,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:42:31,468 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:42:31,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:42:31,816 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:42:31,817 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 01:42:31,817 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-25 01:42:31,817 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:42:31,818 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-25 01:42:31,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-25 01:42:31,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-25 01:42:31,818 INFO L87 Difference]: Start difference. First operand 13540 states and 20967 transitions. Second operand 5 states. [2018-10-25 01:42:46,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:42:46,158 INFO L93 Difference]: Finished difference Result 40072 states and 65680 transitions. [2018-10-25 01:42:46,158 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-25 01:42:46,158 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 214 [2018-10-25 01:42:46,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:42:46,293 INFO L225 Difference]: With dead ends: 40072 [2018-10-25 01:42:46,294 INFO L226 Difference]: Without dead ends: 26538 [2018-10-25 01:42:46,352 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-25 01:42:46,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26538 states. [2018-10-25 01:42:46,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26538 to 26236. [2018-10-25 01:42:46,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26236 states. [2018-10-25 01:42:47,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26236 states to 26236 states and 39281 transitions. [2018-10-25 01:42:47,019 INFO L78 Accepts]: Start accepts. Automaton has 26236 states and 39281 transitions. Word has length 214 [2018-10-25 01:42:47,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:42:47,020 INFO L481 AbstractCegarLoop]: Abstraction has 26236 states and 39281 transitions. [2018-10-25 01:42:47,020 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-25 01:42:47,020 INFO L276 IsEmpty]: Start isEmpty. Operand 26236 states and 39281 transitions. [2018-10-25 01:42:47,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2018-10-25 01:42:47,046 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:42:47,047 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, 2, 2, 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] [2018-10-25 01:42:47,047 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:42:47,047 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:42:47,047 INFO L82 PathProgramCache]: Analyzing trace with hash -426955638, now seen corresponding path program 1 times [2018-10-25 01:42:47,048 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:42:47,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:42:47,049 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:42:47,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:42:47,049 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:42:47,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:42:47,361 WARN L179 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-25 01:42:47,792 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 94 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-25 01:42:47,792 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:42:47,792 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 01:42:47,796 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 288 with the following transitions: [2018-10-25 01:42:47,799 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], [2959], [2961], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3132], [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], [3571], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-10-25 01:42:47,881 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 01:42:47,882 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 01:42:48,601 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-25 01:42:48,607 INFO L272 AbstractInterpreter]: Visited 165 different actions 165 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-25 01:42:48,637 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:42:48,637 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-25 01:42:49,309 INFO L232 lantSequenceWeakener]: Weakened 278 states. On average, predicates are now at 71.28% of their original sizes. [2018-10-25 01:42:49,310 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-25 01:42:49,585 INFO L413 sIntCurrentIteration]: We have 286 unified AI predicates [2018-10-25 01:42:49,585 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-25 01:42:49,586 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-25 01:42:49,587 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-10-25 01:42:49,587 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:42:49,588 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 01:42:49,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 01:42:49,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 01:42:49,588 INFO L87 Difference]: Start difference. First operand 26236 states and 39281 transitions. Second operand 6 states. [2018-10-25 01:42:54,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-25 01:42:54,581 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.ArithmeticException: BigInteger: modulus not positive at java.math.BigInteger.mod(BigInteger.java:2458) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.explicit.ExplicitValueValue.modulo(ExplicitValueValue.java:154) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.explicit.ExplicitValueValue.modulo(ExplicitValueValue.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:125) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:100) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.ConditionalEvaluator.evaluate(ConditionalEvaluator.java:78) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.ConditionalEvaluator.evaluate(ConditionalEvaluator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleAssumeStatement(NonrelationalStatementProcessor.java:363) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processStatement(NonrelationalStatementProcessor.java:160) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:142) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:128) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:362) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:353) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:125) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.applyInternally(CompoundDomainPostOperator.java:306) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:131) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.applyPost(TermConjunctEvaluator.java:305) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.lambda$4(TermConjunctEvaluator.java:178) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.computeFixpoint(TermConjunctEvaluator.java:198) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.lambda$1(TermConjunctEvaluator.java:150) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.computePost(TermConjunctEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormanCachedPostOperation.applyPost(PoormanCachedPostOperation.java:308) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.applyPost(PoormansAbstractPostOperator.java:217) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:119) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:369) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:537) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:369) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternalTransitionWithValidState(AbsIntHoareTripleChecker.java:352) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternalAbsInt(AbsIntHoareTripleChecker.java:249) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternal(AbsIntHoareTripleChecker.java:181) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:98) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:359) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.chooseFalseSuccessor2(BasicAbstractInterpolantAutomaton.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:72) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:234) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1066) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:968) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:188) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:673) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:602) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:473) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-10-25 01:42:54,586 INFO L168 Benchmark]: Toolchain (without parser) took 95699.92 ms. Allocated memory was 1.5 GB in the beginning and 3.1 GB in the end (delta: 1.6 GB). Free memory was 1.4 GB in the beginning and 2.8 GB in the end (delta: -1.3 GB). Peak memory consumption was 206.6 MB. Max. memory is 7.1 GB. [2018-10-25 01:42:54,588 INFO L168 Benchmark]: CDTParser took 0.21 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. [2018-10-25 01:42:54,588 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2793.38 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. [2018-10-25 01:42:54,589 INFO L168 Benchmark]: Boogie Procedure Inliner took 637.80 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 817.4 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. [2018-10-25 01:42:54,590 INFO L168 Benchmark]: Boogie Preprocessor took 324.66 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: 38.4 MB). Peak memory consumption was 38.4 MB. Max. memory is 7.1 GB. [2018-10-25 01:42:54,591 INFO L168 Benchmark]: RCFGBuilder took 10829.61 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 207.6 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: -32.4 MB). Peak memory consumption was 685.1 MB. Max. memory is 7.1 GB. [2018-10-25 01:42:54,592 INFO L168 Benchmark]: TraceAbstraction took 81108.92 ms. Allocated memory was 2.6 GB in the beginning and 3.1 GB in the end (delta: 526.4 MB). Free memory was 2.2 GB in the beginning and 2.8 GB in the end (delta: -517.9 MB). Peak memory consumption was 8.5 MB. Max. memory is 7.1 GB. [2018-10-25 01:42:54,603 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 2793.38 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 637.80 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 817.4 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 324.66 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: 38.4 MB). Peak memory consumption was 38.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10829.61 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 207.6 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: -32.4 MB). Peak memory consumption was 685.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 81108.92 ms. Allocated memory was 2.6 GB in the beginning and 3.1 GB in the end (delta: 526.4 MB). Free memory was 2.2 GB in the beginning and 2.8 GB in the end (delta: -517.9 MB). Peak memory consumption was 8.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: ArithmeticException: BigInteger: modulus not positive de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: ArithmeticException: BigInteger: modulus not positive: java.math.BigInteger.mod(BigInteger.java:2458) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...