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_label22_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 07:55:08,751 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 07:55:08,753 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 07:55:08,765 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 07:55:08,766 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 07:55:08,767 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 07:55:08,769 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 07:55:08,771 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 07:55:08,773 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 07:55:08,779 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 07:55:08,780 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 07:55:08,780 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 07:55:08,781 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 07:55:08,786 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 07:55:08,787 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 07:55:08,788 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 07:55:08,791 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 07:55:08,795 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 07:55:08,797 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 07:55:08,798 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 07:55:08,803 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 07:55:08,804 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 07:55:08,806 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 07:55:08,806 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 07:55:08,806 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 07:55:08,807 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 07:55:08,808 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 07:55:08,809 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 07:55:08,809 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 07:55:08,810 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 07:55:08,811 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 07:55:08,811 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-27 07:55:08,813 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-10-27 07:55:08,829 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 07:55:08,829 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 07:55:08,830 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 07:55:08,830 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 07:55:08,830 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 07:55:08,830 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 07:55:08,830 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-27 07:55:08,831 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 07:55:08,831 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-27 07:55:08,831 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 07:55:08,831 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 07:55:08,831 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 07:55:08,832 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 07:55:08,832 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 07:55:08,832 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 07:55:08,833 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 07:55:08,833 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 07:55:08,833 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 07:55:08,833 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 07:55:08,833 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 07:55:08,833 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 07:55:08,834 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 07:55:08,834 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 07:55:08,834 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 07:55:08,834 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 07:55:08,834 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 07:55:08,835 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 07:55:08,835 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 07:55:08,835 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 07:55:08,835 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 07:55:08,835 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 07:55:08,836 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 07:55:08,836 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 07:55:08,836 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 07:55:08,836 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 07:55:08,836 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 07:55:08,892 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 07:55:08,907 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 07:55:08,911 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 07:55:08,912 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 07:55:08,913 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 07:55:08,914 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label22_true-unreach-call.c [2018-10-27 07:55:08,980 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a29a648ec/521335b3d2d34aa3a08ba539cc32c6c6/FLAG71b3bc275 [2018-10-27 07:55:09,757 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 07:55:09,758 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label22_true-unreach-call.c [2018-10-27 07:55:09,795 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a29a648ec/521335b3d2d34aa3a08ba539cc32c6c6/FLAG71b3bc275 [2018-10-27 07:55:09,812 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a29a648ec/521335b3d2d34aa3a08ba539cc32c6c6 [2018-10-27 07:55:09,825 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 07:55:09,828 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 07:55:09,830 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 07:55:09,831 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 07:55:09,835 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 07:55:09,836 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:55:09" (1/1) ... [2018-10-27 07:55:09,840 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ff2c710 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:55:09, skipping insertion in model container [2018-10-27 07:55:09,840 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:55:09" (1/1) ... [2018-10-27 07:55:09,852 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 07:55:10,042 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 07:55:11,524 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 07:55:11,529 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 07:55:12,296 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 07:55:12,335 INFO L193 MainTranslator]: Completed translation [2018-10-27 07:55:12,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:55:12 WrapperNode [2018-10-27 07:55:12,336 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 07:55:12,337 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 07:55:12,338 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 07:55:12,338 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 07:55:12,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:55:12" (1/1) ... [2018-10-27 07:55:12,429 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:55:12" (1/1) ... [2018-10-27 07:55:12,929 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 07:55:12,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 07:55:12,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 07:55:12,930 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 07:55:12,943 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:55:12" (1/1) ... [2018-10-27 07:55:12,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:55:12" (1/1) ... [2018-10-27 07:55:12,979 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:55:12" (1/1) ... [2018-10-27 07:55:12,979 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:55:12" (1/1) ... [2018-10-27 07:55:13,134 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:55:12" (1/1) ... [2018-10-27 07:55:13,179 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:55:12" (1/1) ... [2018-10-27 07:55:13,257 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:55:12" (1/1) ... [2018-10-27 07:55:13,315 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 07:55:13,316 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 07:55:13,316 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 07:55:13,316 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 07:55:13,317 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:55:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 07:55:13,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 07:55:13,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 07:55:13,384 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-27 07:55:13,384 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-27 07:55:13,384 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-27 07:55:13,385 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-27 07:55:13,385 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 07:55:13,385 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 07:55:13,386 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 07:55:13,386 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 07:55:13,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 07:55:13,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 07:55:13,386 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 07:55:13,387 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 07:55:24,024 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 07:55:24,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:55:24 BoogieIcfgContainer [2018-10-27 07:55:24,025 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 07:55:24,026 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 07:55:24,026 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 07:55:24,029 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 07:55:24,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 07:55:09" (1/3) ... [2018-10-27 07:55:24,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bdd5db4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:55:24, skipping insertion in model container [2018-10-27 07:55:24,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:55:12" (2/3) ... [2018-10-27 07:55:24,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bdd5db4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:55:24, skipping insertion in model container [2018-10-27 07:55:24,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:55:24" (3/3) ... [2018-10-27 07:55:24,033 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label22_true-unreach-call.c [2018-10-27 07:55:24,043 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 07:55:24,054 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 07:55:24,073 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 07:55:24,131 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 07:55:24,131 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 07:55:24,131 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 07:55:24,131 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 07:55:24,132 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 07:55:24,132 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 07:55:24,132 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 07:55:24,132 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 07:55:24,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-10-27 07:55:24,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-10-27 07:55:24,202 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 07:55:24,204 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] [2018-10-27 07:55:24,207 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 07:55:24,214 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:55:24,215 INFO L82 PathProgramCache]: Analyzing trace with hash -380938253, now seen corresponding path program 1 times [2018-10-27 07:55:24,218 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 07:55:24,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:55:24,282 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 07:55:24,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:55:24,282 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 07:55:24,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 07:55:24,753 WARN L179 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-10-27 07:55:24,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 07:55:24,783 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 07:55:24,783 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 07:55:24,784 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 07:55:24,796 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 07:55:24,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 07:55:24,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 07:55:24,824 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 4 states. [2018-10-27 07:55:43,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 07:55:43,413 INFO L93 Difference]: Finished difference Result 4105 states and 7669 transitions. [2018-10-27 07:55:43,423 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 07:55:43,424 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 39 [2018-10-27 07:55:43,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 07:55:43,476 INFO L225 Difference]: With dead ends: 4105 [2018-10-27 07:55:43,476 INFO L226 Difference]: Without dead ends: 2979 [2018-10-27 07:55:43,489 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 07:55:43,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2979 states. [2018-10-27 07:55:43,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2979 to 2849. [2018-10-27 07:55:43,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2849 states. [2018-10-27 07:55:43,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2849 states to 2849 states and 5075 transitions. [2018-10-27 07:55:43,698 INFO L78 Accepts]: Start accepts. Automaton has 2849 states and 5075 transitions. Word has length 39 [2018-10-27 07:55:43,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 07:55:43,699 INFO L481 AbstractCegarLoop]: Abstraction has 2849 states and 5075 transitions. [2018-10-27 07:55:43,699 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 07:55:43,700 INFO L276 IsEmpty]: Start isEmpty. Operand 2849 states and 5075 transitions. [2018-10-27 07:55:43,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2018-10-27 07:55:43,713 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 07:55:43,713 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 07:55:43,714 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 07:55:43,718 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:55:43,718 INFO L82 PathProgramCache]: Analyzing trace with hash 1766897295, now seen corresponding path program 1 times [2018-10-27 07:55:43,719 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 07:55:43,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:55:43,721 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 07:55:43,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:55:43,721 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 07:55:43,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 07:55:44,165 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 07:55:44,165 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 07:55:44,165 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 07:55:44,166 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 07:55:44,168 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 07:55:44,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 07:55:44,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 07:55:44,170 INFO L87 Difference]: Start difference. First operand 2849 states and 5075 transitions. Second operand 6 states. [2018-10-27 07:56:02,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 07:56:02,123 INFO L93 Difference]: Finished difference Result 10635 states and 19580 transitions. [2018-10-27 07:56:02,124 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 07:56:02,124 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 110 [2018-10-27 07:56:02,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 07:56:02,176 INFO L225 Difference]: With dead ends: 10635 [2018-10-27 07:56:02,176 INFO L226 Difference]: Without dead ends: 7792 [2018-10-27 07:56:02,197 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 [2018-10-27 07:56:02,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7792 states. [2018-10-27 07:56:02,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7792 to 7729. [2018-10-27 07:56:02,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7729 states. [2018-10-27 07:56:02,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7729 states to 7729 states and 12373 transitions. [2018-10-27 07:56:02,434 INFO L78 Accepts]: Start accepts. Automaton has 7729 states and 12373 transitions. Word has length 110 [2018-10-27 07:56:02,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 07:56:02,436 INFO L481 AbstractCegarLoop]: Abstraction has 7729 states and 12373 transitions. [2018-10-27 07:56:02,436 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 07:56:02,436 INFO L276 IsEmpty]: Start isEmpty. Operand 7729 states and 12373 transitions. [2018-10-27 07:56:02,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-10-27 07:56:02,440 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 07:56:02,441 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 07:56:02,441 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 07:56:02,441 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:56:02,443 INFO L82 PathProgramCache]: Analyzing trace with hash 1433958942, now seen corresponding path program 1 times [2018-10-27 07:56:02,443 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 07:56:02,445 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:56:02,447 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 07:56:02,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:56:02,447 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 07:56:02,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 07:56:02,673 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 07:56:02,673 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 07:56:02,674 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 07:56:02,674 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 07:56:02,674 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 07:56:02,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 07:56:02,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 07:56:02,675 INFO L87 Difference]: Start difference. First operand 7729 states and 12373 transitions. Second operand 6 states. [2018-10-27 07:56:18,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 07:56:18,859 INFO L93 Difference]: Finished difference Result 21334 states and 35505 transitions. [2018-10-27 07:56:18,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 07:56:18,865 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 113 [2018-10-27 07:56:18,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 07:56:18,939 INFO L225 Difference]: With dead ends: 21334 [2018-10-27 07:56:18,939 INFO L226 Difference]: Without dead ends: 13611 [2018-10-27 07:56:18,973 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 07:56:18,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13611 states. [2018-10-27 07:56:19,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13611 to 13533. [2018-10-27 07:56:19,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13533 states. [2018-10-27 07:56:19,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13533 states to 13533 states and 20794 transitions. [2018-10-27 07:56:19,316 INFO L78 Accepts]: Start accepts. Automaton has 13533 states and 20794 transitions. Word has length 113 [2018-10-27 07:56:19,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 07:56:19,316 INFO L481 AbstractCegarLoop]: Abstraction has 13533 states and 20794 transitions. [2018-10-27 07:56:19,316 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 07:56:19,317 INFO L276 IsEmpty]: Start isEmpty. Operand 13533 states and 20794 transitions. [2018-10-27 07:56:19,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-10-27 07:56:19,320 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 07:56:19,320 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 07:56:19,320 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 07:56:19,321 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:56:19,321 INFO L82 PathProgramCache]: Analyzing trace with hash 1170956786, now seen corresponding path program 1 times [2018-10-27 07:56:19,321 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 07:56:19,322 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:56:19,322 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 07:56:19,322 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:56:19,322 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 07:56:19,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 07:56:19,639 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 07:56:19,640 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 07:56:19,640 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 07:56:19,640 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 07:56:19,641 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 07:56:19,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 07:56:19,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 07:56:19,641 INFO L87 Difference]: Start difference. First operand 13533 states and 20794 transitions. Second operand 5 states. [2018-10-27 07:56:35,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 07:56:35,846 INFO L93 Difference]: Finished difference Result 40056 states and 65129 transitions. [2018-10-27 07:56:35,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-27 07:56:35,847 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 123 [2018-10-27 07:56:35,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 07:56:35,976 INFO L225 Difference]: With dead ends: 40056 [2018-10-27 07:56:35,976 INFO L226 Difference]: Without dead ends: 26529 [2018-10-27 07:56:36,033 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-27 07:56:36,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26529 states. [2018-10-27 07:56:36,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26529 to 26229. [2018-10-27 07:56:36,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26229 states. [2018-10-27 07:56:36,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26229 states to 26229 states and 38611 transitions. [2018-10-27 07:56:36,720 INFO L78 Accepts]: Start accepts. Automaton has 26229 states and 38611 transitions. Word has length 123 [2018-10-27 07:56:36,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 07:56:36,721 INFO L481 AbstractCegarLoop]: Abstraction has 26229 states and 38611 transitions. [2018-10-27 07:56:36,721 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 07:56:36,721 INFO L276 IsEmpty]: Start isEmpty. Operand 26229 states and 38611 transitions. [2018-10-27 07:56:36,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-10-27 07:56:36,726 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 07:56:36,726 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 07:56:36,726 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 07:56:36,726 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:56:36,727 INFO L82 PathProgramCache]: Analyzing trace with hash 531830176, now seen corresponding path program 1 times [2018-10-27 07:56:36,727 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 07:56:36,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:56:36,728 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 07:56:36,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:56:36,728 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 07:56:36,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 07:56:37,044 WARN L179 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 07:56:37,604 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 15 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 07:56:37,605 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 07:56:37,605 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 07:56:37,608 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 141 with the following transitions: [2018-10-27 07:56:37,611 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], [2839], [2841], [2844], [2852], [2860], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-10-27 07:56:37,697 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 07:56:37,698 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 07:56:38,719 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 07:56:38,721 INFO L272 AbstractInterpreter]: Visited 108 different actions 311 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-10-27 07:56:38,772 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:56:38,772 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 07:56:39,109 INFO L227 lantSequenceWeakener]: Weakened 137 states. On average, predicates are now at 71.29% of their original sizes. [2018-10-27 07:56:39,109 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 07:56:39,902 INFO L415 sIntCurrentIteration]: We unified 139 AI predicates to 139 [2018-10-27 07:56:39,902 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 07:56:39,903 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 07:56:39,904 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [7] total 15 [2018-10-27 07:56:39,904 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 07:56:39,904 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-27 07:56:39,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-27 07:56:39,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-10-27 07:56:39,905 INFO L87 Difference]: Start difference. First operand 26229 states and 38611 transitions. Second operand 10 states. Received shutdown request... [2018-10-27 07:59:09,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-27 07:59:09,073 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 07:59:09,079 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 07:59:09,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 07:59:09 BoogieIcfgContainer [2018-10-27 07:59:09,079 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 07:59:09,080 INFO L168 Benchmark]: Toolchain (without parser) took 239253.70 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.8 GB in the end (delta: -2.4 GB). Peak memory consumption was 317.2 MB. Max. memory is 7.1 GB. [2018-10-27 07:59:09,081 INFO L168 Benchmark]: CDTParser took 1.31 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 07:59:09,082 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2506.55 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-10-27 07:59:09,083 INFO L168 Benchmark]: Boogie Procedure Inliner took 592.07 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 809.5 MB). Free memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. [2018-10-27 07:59:09,084 INFO L168 Benchmark]: Boogie Preprocessor took 385.64 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: 37.8 MB). Peak memory consumption was 37.8 MB. Max. memory is 7.1 GB. [2018-10-27 07:59:09,085 INFO L168 Benchmark]: RCFGBuilder took 10709.27 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 198.7 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: -11.1 MB). Peak memory consumption was 672.2 MB. Max. memory is 7.1 GB. [2018-10-27 07:59:09,085 INFO L168 Benchmark]: TraceAbstraction took 225053.60 ms. Allocated memory was 2.5 GB in the beginning and 4.2 GB in the end (delta: 1.7 GB). Free memory was 2.2 GB in the beginning and 3.8 GB in the end (delta: -1.6 GB). Peak memory consumption was 111.0 MB. Max. memory is 7.1 GB. [2018-10-27 07:59:09,098 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.31 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 2506.55 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 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 592.07 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 809.5 MB). Free memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 385.64 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: 37.8 MB). Peak memory consumption was 37.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10709.27 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 198.7 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: -11.1 MB). Peak memory consumption was 672.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 225053.60 ms. Allocated memory was 2.5 GB in the beginning and 4.2 GB in the end (delta: 1.7 GB). Free memory was 2.2 GB in the beginning and 3.8 GB in the end (delta: -1.6 GB). Peak memory consumption was 111.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 108]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 108). Cancelled while BasicCegarLoop was constructing difference of abstraction (26229states) and FLOYD_HOARE automaton (currently 16 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (28113 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 224.9s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 218.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2384 SDtfs, 17618 SDslu, 2511 SDs, 0 SdLazy, 26993 SolverSat, 7711 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 183.3s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 183 GetRequests, 142 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26229occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9969730618667123 AbsIntWeakeningRatio, 0.1510791366906475 AbsIntAvgWeakeningVarsNumRemoved, 15.956834532374101 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 571 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 525 NumberOfCodeBlocks, 525 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 520 ConstructedInterpolants, 0 QuantifiedInterpolants, 288388 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 111/128 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown