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/Problem18_label14_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-25 02:04:10,697 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-25 02:04:10,699 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-25 02:04:10,712 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-25 02:04:10,713 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-25 02:04:10,714 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-25 02:04:10,715 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-25 02:04:10,717 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-25 02:04:10,720 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-25 02:04:10,721 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-25 02:04:10,729 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-25 02:04:10,730 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-25 02:04:10,731 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-25 02:04:10,734 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-25 02:04:10,735 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-25 02:04:10,736 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-25 02:04:10,738 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-25 02:04:10,741 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-25 02:04:10,743 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-25 02:04:10,744 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-25 02:04:10,745 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-25 02:04:10,746 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-25 02:04:10,748 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-25 02:04:10,757 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 02:04:10,772 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-25 02:04:10,772 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-25 02:04:10,775 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-25 02:04:10,776 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-25 02:04:10,776 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-25 02:04:10,776 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-25 02:04:10,776 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-25 02:04:10,777 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-25 02:04:10,777 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-25 02:04:10,777 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-25 02:04:10,777 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-25 02:04:10,777 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-25 02:04:10,778 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-25 02:04:10,778 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-25 02:04:10,779 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-25 02:04:10,779 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-25 02:04:10,779 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-25 02:04:10,780 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-25 02:04:10,781 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-25 02:04:10,782 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-25 02:04:10,782 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-25 02:04:10,782 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-25 02:04:10,782 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-25 02:04:10,782 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-25 02:04:10,782 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-25 02:04:10,783 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-25 02:04:10,783 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-25 02:04:10,783 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-25 02:04:10,784 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-25 02:04:10,784 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-25 02:04:10,784 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-25 02:04:10,784 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-25 02:04:10,784 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-25 02:04:10,785 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-25 02:04:10,785 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-25 02:04:10,785 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-25 02:04:10,856 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-25 02:04:10,875 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-25 02:04:10,880 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-25 02:04:10,881 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-25 02:04:10,882 INFO L276 PluginConnector]: CDTParser initialized [2018-10-25 02:04:10,883 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label14_true-unreach-call.c [2018-10-25 02:04:10,951 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/0cdb5acea/621360c891ef424598a627b621758374/FLAGd8f209785 [2018-10-25 02:04:11,711 INFO L298 CDTParser]: Found 1 translation units. [2018-10-25 02:04:11,712 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label14_true-unreach-call.c [2018-10-25 02:04:11,735 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/0cdb5acea/621360c891ef424598a627b621758374/FLAGd8f209785 [2018-10-25 02:04:11,751 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/0cdb5acea/621360c891ef424598a627b621758374 [2018-10-25 02:04:11,765 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-25 02:04:11,767 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-25 02:04:11,768 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-25 02:04:11,769 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-25 02:04:11,776 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-25 02:04:11,777 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 02:04:11" (1/1) ... [2018-10-25 02:04:11,781 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d9de6d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:04:11, skipping insertion in model container [2018-10-25 02:04:11,781 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 02:04:11" (1/1) ... [2018-10-25 02:04:11,793 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-25 02:04:11,932 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-25 02:04:13,104 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 02:04:13,109 INFO L189 MainTranslator]: Completed pre-run [2018-10-25 02:04:13,549 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 02:04:13,579 INFO L193 MainTranslator]: Completed translation [2018-10-25 02:04:13,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:04:13 WrapperNode [2018-10-25 02:04:13,580 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-25 02:04:13,581 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-25 02:04:13,581 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-25 02:04:13,581 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-25 02:04:13,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:04:13" (1/1) ... [2018-10-25 02:04:13,643 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:04:13" (1/1) ... [2018-10-25 02:04:13,958 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-25 02:04:13,959 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-25 02:04:13,959 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-25 02:04:13,959 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-25 02:04:13,973 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:04:13" (1/1) ... [2018-10-25 02:04:13,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:04:13" (1/1) ... [2018-10-25 02:04:13,988 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:04:13" (1/1) ... [2018-10-25 02:04:13,988 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:04:13" (1/1) ... [2018-10-25 02:04:14,057 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:04:13" (1/1) ... [2018-10-25 02:04:14,088 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:04:13" (1/1) ... [2018-10-25 02:04:14,112 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:04:13" (1/1) ... [2018-10-25 02:04:14,135 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-25 02:04:14,136 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-25 02:04:14,136 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-25 02:04:14,136 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-25 02:04:14,137 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:04:13" (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 02:04:14,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-25 02:04:14,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-25 02:04:14,213 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-25 02:04:14,213 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-25 02:04:14,213 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-25 02:04:14,214 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-25 02:04:14,214 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-25 02:04:14,214 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-25 02:04:14,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-25 02:04:14,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-25 02:04:14,215 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-25 02:04:14,215 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-25 02:04:21,800 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-25 02:04:21,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 02:04:21 BoogieIcfgContainer [2018-10-25 02:04:21,801 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-25 02:04:21,803 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-25 02:04:21,803 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-25 02:04:21,806 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-25 02:04:21,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 02:04:11" (1/3) ... [2018-10-25 02:04:21,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24abf510 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 02:04:21, skipping insertion in model container [2018-10-25 02:04:21,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:04:13" (2/3) ... [2018-10-25 02:04:21,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24abf510 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 02:04:21, skipping insertion in model container [2018-10-25 02:04:21,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 02:04:21" (3/3) ... [2018-10-25 02:04:21,810 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label14_true-unreach-call.c [2018-10-25 02:04:21,820 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-25 02:04:21,830 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-25 02:04:21,848 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-25 02:04:21,907 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-25 02:04:21,907 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-25 02:04:21,907 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-25 02:04:21,907 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-25 02:04:21,907 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-25 02:04:21,908 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-25 02:04:21,908 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-25 02:04:21,908 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-25 02:04:21,951 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-10-25 02:04:21,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-10-25 02:04:21,962 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 02:04:21,964 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 02:04:21,966 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 02:04:21,975 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:04:21,976 INFO L82 PathProgramCache]: Analyzing trace with hash 939930735, now seen corresponding path program 1 times [2018-10-25 02:04:21,978 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 02:04:22,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:04:22,028 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:04:22,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:04:22,028 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 02:04:22,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:04:22,522 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-10-25 02:04:22,536 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 02:04:22,539 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 02:04:22,539 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-25 02:04:22,539 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 02:04:22,545 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-25 02:04:22,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-25 02:04:22,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-25 02:04:22,565 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 4 states. [2018-10-25 02:04:33,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 02:04:33,923 INFO L93 Difference]: Finished difference Result 2974 states and 5747 transitions. [2018-10-25 02:04:33,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-25 02:04:33,924 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2018-10-25 02:04:33,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 02:04:33,965 INFO L225 Difference]: With dead ends: 2974 [2018-10-25 02:04:33,966 INFO L226 Difference]: Without dead ends: 2193 [2018-10-25 02:04:33,978 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 02:04:33,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2193 states. [2018-10-25 02:04:34,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2193 to 2193. [2018-10-25 02:04:34,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2193 states. [2018-10-25 02:04:34,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2193 states to 2193 states and 3677 transitions. [2018-10-25 02:04:34,160 INFO L78 Accepts]: Start accepts. Automaton has 2193 states and 3677 transitions. Word has length 57 [2018-10-25 02:04:34,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 02:04:34,161 INFO L481 AbstractCegarLoop]: Abstraction has 2193 states and 3677 transitions. [2018-10-25 02:04:34,161 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-25 02:04:34,161 INFO L276 IsEmpty]: Start isEmpty. Operand 2193 states and 3677 transitions. [2018-10-25 02:04:34,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2018-10-25 02:04:34,180 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 02:04:34,181 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 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 02:04:34,181 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 02:04:34,181 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:04:34,182 INFO L82 PathProgramCache]: Analyzing trace with hash -398672992, now seen corresponding path program 1 times [2018-10-25 02:04:34,183 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 02:04:34,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:04:34,184 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:04:34,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:04:34,184 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 02:04:34,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:04:34,538 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 02:04:34,539 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 02:04:34,539 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-25 02:04:34,539 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 02:04:34,541 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-25 02:04:34,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-25 02:04:34,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-25 02:04:34,542 INFO L87 Difference]: Start difference. First operand 2193 states and 3677 transitions. Second operand 5 states. [2018-10-25 02:04:43,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 02:04:43,939 INFO L93 Difference]: Finished difference Result 6600 states and 11248 transitions. [2018-10-25 02:04:43,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-25 02:04:43,945 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 127 [2018-10-25 02:04:43,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 02:04:43,983 INFO L225 Difference]: With dead ends: 6600 [2018-10-25 02:04:43,983 INFO L226 Difference]: Without dead ends: 4413 [2018-10-25 02:04:43,992 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-25 02:04:43,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4413 states. [2018-10-25 02:04:44,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4413 to 4378. [2018-10-25 02:04:44,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4378 states. [2018-10-25 02:04:44,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4378 states to 4378 states and 6986 transitions. [2018-10-25 02:04:44,143 INFO L78 Accepts]: Start accepts. Automaton has 4378 states and 6986 transitions. Word has length 127 [2018-10-25 02:04:44,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 02:04:44,143 INFO L481 AbstractCegarLoop]: Abstraction has 4378 states and 6986 transitions. [2018-10-25 02:04:44,143 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-25 02:04:44,145 INFO L276 IsEmpty]: Start isEmpty. Operand 4378 states and 6986 transitions. [2018-10-25 02:04:44,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-10-25 02:04:44,157 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 02:04:44,157 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:04:44,158 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 02:04:44,159 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:04:44,159 INFO L82 PathProgramCache]: Analyzing trace with hash 1313016153, now seen corresponding path program 1 times [2018-10-25 02:04:44,159 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 02:04:44,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:04:44,161 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:04:44,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:04:44,162 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 02:04:44,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:04:44,481 WARN L179 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-25 02:04:44,826 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 02:04:44,827 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 02:04:44,827 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-25 02:04:44,827 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 02:04:44,828 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 02:04:44,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 02:04:44,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 02:04:44,829 INFO L87 Difference]: Start difference. First operand 4378 states and 6986 transitions. Second operand 6 states. [2018-10-25 02:04:50,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 02:04:50,309 INFO L93 Difference]: Finished difference Result 11002 states and 17598 transitions. [2018-10-25 02:04:50,310 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-25 02:04:50,310 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 154 [2018-10-25 02:04:50,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 02:04:50,348 INFO L225 Difference]: With dead ends: 11002 [2018-10-25 02:04:50,348 INFO L226 Difference]: Without dead ends: 6630 [2018-10-25 02:04:50,363 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-25 02:04:50,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6630 states. [2018-10-25 02:04:50,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6630 to 6590. [2018-10-25 02:04:50,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6590 states. [2018-10-25 02:04:50,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6590 states to 6590 states and 9022 transitions. [2018-10-25 02:04:50,547 INFO L78 Accepts]: Start accepts. Automaton has 6590 states and 9022 transitions. Word has length 154 [2018-10-25 02:04:50,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 02:04:50,550 INFO L481 AbstractCegarLoop]: Abstraction has 6590 states and 9022 transitions. [2018-10-25 02:04:50,550 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 02:04:50,550 INFO L276 IsEmpty]: Start isEmpty. Operand 6590 states and 9022 transitions. [2018-10-25 02:04:50,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2018-10-25 02:04:50,556 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 02:04:50,556 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, 3, 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] [2018-10-25 02:04:50,556 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 02:04:50,557 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:04:50,557 INFO L82 PathProgramCache]: Analyzing trace with hash -1488518530, now seen corresponding path program 1 times [2018-10-25 02:04:50,557 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 02:04:50,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:04:50,558 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:04:50,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:04:50,558 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 02:04:50,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:04:50,853 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-10-25 02:04:50,853 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 02:04:50,853 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-25 02:04:50,853 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 02:04:50,855 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-25 02:04:50,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-25 02:04:50,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-25 02:04:50,856 INFO L87 Difference]: Start difference. First operand 6590 states and 9022 transitions. Second operand 4 states. [2018-10-25 02:04:58,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 02:04:58,615 INFO L93 Difference]: Finished difference Result 26002 states and 36762 transitions. [2018-10-25 02:04:58,616 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-25 02:04:58,616 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 234 [2018-10-25 02:04:58,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 02:04:58,714 INFO L225 Difference]: With dead ends: 26002 [2018-10-25 02:04:58,715 INFO L226 Difference]: Without dead ends: 19418 [2018-10-25 02:04:58,755 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-25 02:04:58,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19418 states. [2018-10-25 02:04:59,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19418 to 19418. [2018-10-25 02:04:59,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19418 states. [2018-10-25 02:04:59,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19418 states to 19418 states and 25289 transitions. [2018-10-25 02:04:59,167 INFO L78 Accepts]: Start accepts. Automaton has 19418 states and 25289 transitions. Word has length 234 [2018-10-25 02:04:59,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 02:04:59,167 INFO L481 AbstractCegarLoop]: Abstraction has 19418 states and 25289 transitions. [2018-10-25 02:04:59,167 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-25 02:04:59,168 INFO L276 IsEmpty]: Start isEmpty. Operand 19418 states and 25289 transitions. [2018-10-25 02:04:59,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2018-10-25 02:04:59,182 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 02:04:59,183 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:04:59,183 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 02:04:59,183 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:04:59,183 INFO L82 PathProgramCache]: Analyzing trace with hash -1516433617, now seen corresponding path program 1 times [2018-10-25 02:04:59,183 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 02:04:59,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:04:59,184 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:04:59,185 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:04:59,185 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 02:04:59,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:05:00,017 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 227 proven. 73 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2018-10-25 02:05:00,018 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 02:05:00,018 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 02:05:00,019 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 337 with the following transitions: [2018-10-25 02:05:00,022 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1903], [1911], [1919], [1927], [1935], [1943], [1951], [1959], [1967], [1975], [1979], [1981], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2132], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2164], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2328], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-10-25 02:05:00,075 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 02:05:00,076 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 02:05:00,742 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-25 02:05:00,743 INFO L272 AbstractInterpreter]: Visited 129 different actions 129 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-25 02:05:00,793 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:05:00,793 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-25 02:05:01,473 INFO L232 lantSequenceWeakener]: Weakened 324 states. On average, predicates are now at 77.88% of their original sizes. [2018-10-25 02:05:01,474 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-25 02:05:01,672 INFO L413 sIntCurrentIteration]: We have 335 unified AI predicates [2018-10-25 02:05:01,672 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-25 02:05:01,673 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-25 02:05:01,673 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-10-25 02:05:01,673 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 02:05:01,674 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 02:05:01,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 02:05:01,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 02:05:01,675 INFO L87 Difference]: Start difference. First operand 19418 states and 25289 transitions. Second operand 6 states. [2018-10-25 02:05:41,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-25 02:05:41,999 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: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.DeterministicInterpolantAutomaton.addOtherSuccessors(DeterministicInterpolantAutomaton.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:77) 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 02:05:42,004 INFO L168 Benchmark]: Toolchain (without parser) took 90238.78 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -380.6 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-10-25 02:05:42,006 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-25 02:05:42,006 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1811.94 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: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2018-10-25 02:05:42,007 INFO L168 Benchmark]: Boogie Procedure Inliner took 377.35 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 752.4 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -926.5 MB). Peak memory consumption was 45.1 MB. Max. memory is 7.1 GB. [2018-10-25 02:05:42,008 INFO L168 Benchmark]: Boogie Preprocessor took 176.87 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2018-10-25 02:05:42,009 INFO L168 Benchmark]: RCFGBuilder took 7665.77 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.6 GB in the end (delta: 523.2 MB). Peak memory consumption was 523.2 MB. Max. memory is 7.1 GB. [2018-10-25 02:05:42,010 INFO L168 Benchmark]: TraceAbstraction took 80201.10 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.6 GB in the beginning and 1.8 GB in the end (delta: -139.4 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-10-25 02:05:42,016 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 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1811.94 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: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 377.35 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 752.4 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -926.5 MB). Peak memory consumption was 45.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 176.87 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7665.77 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.6 GB in the end (delta: 523.2 MB). Peak memory consumption was 523.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 80201.10 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.6 GB in the beginning and 1.8 GB in the end (delta: -139.4 MB). Peak memory consumption was 1.7 GB. 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...