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.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label04_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 22:15:28,839 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 22:15:28,841 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 22:15:28,854 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 22:15:28,855 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 22:15:28,856 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 22:15:28,857 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 22:15:28,859 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 22:15:28,861 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 22:15:28,862 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 22:15:28,864 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 22:15:28,865 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 22:15:28,866 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 22:15:28,867 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 22:15:28,868 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 22:15:28,871 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 22:15:28,872 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 22:15:28,875 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 22:15:28,885 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 22:15:28,886 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 22:15:28,890 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 22:15:28,891 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 22:15:28,894 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 22:15:28,909 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 22:15:28,928 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 22:15:28,929 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 22:15:28,930 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 22:15:28,930 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 22:15:28,930 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 22:15:28,930 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 22:15:28,930 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 22:15:28,931 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 22:15:28,931 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 22:15:28,931 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 22:15:28,931 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 22:15:28,931 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 22:15:28,932 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 22:15:28,932 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 22:15:28,932 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 22:15:28,932 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 22:15:28,933 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 22:15:28,933 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 22:15:28,933 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 22:15:28,933 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 22:15:28,934 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 22:15:28,934 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 22:15:28,934 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 22:15:28,934 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 22:15:28,934 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 22:15:28,935 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 22:15:28,935 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 22:15:28,935 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 22:15:28,935 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 22:15:28,935 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 22:15:28,935 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 22:15:28,936 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 22:15:28,936 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 22:15:28,936 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 22:15:28,979 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 22:15:28,991 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 22:15:28,997 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 22:15:28,998 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 22:15:28,999 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 22:15:29,000 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label04_true-unreach-call.c [2018-10-24 22:15:29,057 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/33e010db6/046454c0fdb841fcb69602a241f6c8dc/FLAGe3397e8ae [2018-10-24 22:15:29,740 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 22:15:29,741 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label04_true-unreach-call.c [2018-10-24 22:15:29,766 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/33e010db6/046454c0fdb841fcb69602a241f6c8dc/FLAGe3397e8ae [2018-10-24 22:15:29,781 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/33e010db6/046454c0fdb841fcb69602a241f6c8dc [2018-10-24 22:15:29,794 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 22:15:29,796 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 22:15:29,797 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 22:15:29,798 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 22:15:29,801 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 22:15:29,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:15:29" (1/1) ... [2018-10-24 22:15:29,805 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fd3eb79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:15:29, skipping insertion in model container [2018-10-24 22:15:29,806 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:15:29" (1/1) ... [2018-10-24 22:15:29,817 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 22:15:29,962 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 22:15:30,994 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 22:15:30,999 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 22:15:31,476 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 22:15:31,509 INFO L193 MainTranslator]: Completed translation [2018-10-24 22:15:31,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:15:31 WrapperNode [2018-10-24 22:15:31,510 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 22:15:31,511 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 22:15:31,511 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 22:15:31,511 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 22:15:31,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:15:31" (1/1) ... [2018-10-24 22:15:31,593 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:15:31" (1/1) ... [2018-10-24 22:15:31,991 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 22:15:31,992 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 22:15:31,992 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 22:15:31,992 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 22:15:32,004 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:15:31" (1/1) ... [2018-10-24 22:15:32,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:15:31" (1/1) ... [2018-10-24 22:15:32,030 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:15:31" (1/1) ... [2018-10-24 22:15:32,030 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:15:31" (1/1) ... [2018-10-24 22:15:32,134 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:15:31" (1/1) ... [2018-10-24 22:15:32,165 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:15:31" (1/1) ... [2018-10-24 22:15:32,199 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:15:31" (1/1) ... [2018-10-24 22:15:32,236 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 22:15:32,237 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 22:15:32,237 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 22:15:32,238 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 22:15:32,239 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:15:31" (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 [2018-10-24 22:15:32,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 22:15:32,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 22:15:32,311 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-24 22:15:32,311 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-24 22:15:32,311 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 22:15:32,312 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 22:15:32,313 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 22:15:32,313 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 22:15:32,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 22:15:32,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 22:15:32,313 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 22:15:32,314 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 22:15:39,895 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 22:15:39,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:15:39 BoogieIcfgContainer [2018-10-24 22:15:39,896 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 22:15:39,898 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 22:15:39,898 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 22:15:39,901 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 22:15:39,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:15:29" (1/3) ... [2018-10-24 22:15:39,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a530ed5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:15:39, skipping insertion in model container [2018-10-24 22:15:39,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:15:31" (2/3) ... [2018-10-24 22:15:39,903 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a530ed5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:15:39, skipping insertion in model container [2018-10-24 22:15:39,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:15:39" (3/3) ... [2018-10-24 22:15:39,905 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label04_true-unreach-call.c [2018-10-24 22:15:39,915 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 22:15:39,924 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 22:15:39,943 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 22:15:40,005 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 22:15:40,005 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 22:15:40,006 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 22:15:40,006 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 22:15:40,006 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 22:15:40,006 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 22:15:40,006 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 22:15:40,006 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 22:15:40,060 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-10-24 22:15:40,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-10-24 22:15:40,070 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:15:40,071 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, 1, 1] [2018-10-24 22:15:40,074 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:15:40,079 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:15:40,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1330496791, now seen corresponding path program 1 times [2018-10-24 22:15:40,081 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:15:40,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:15:40,132 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:15:40,132 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:15:40,132 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:15:40,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:15:40,580 WARN L179 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 22:15:40,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 22:15:40,662 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:15:40,662 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 22:15:40,662 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:15:40,668 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 22:15:40,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 22:15:40,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 22:15:40,687 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 3 states. [2018-10-24 22:15:47,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:15:47,134 INFO L93 Difference]: Finished difference Result 2251 states and 4322 transitions. [2018-10-24 22:15:47,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 22:15:47,136 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2018-10-24 22:15:47,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:15:47,168 INFO L225 Difference]: With dead ends: 2251 [2018-10-24 22:15:47,168 INFO L226 Difference]: Without dead ends: 1474 [2018-10-24 22:15:47,178 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 22:15:47,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2018-10-24 22:15:47,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1474. [2018-10-24 22:15:47,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-10-24 22:15:47,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2800 transitions. [2018-10-24 22:15:47,333 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2800 transitions. Word has length 59 [2018-10-24 22:15:47,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:15:47,334 INFO L481 AbstractCegarLoop]: Abstraction has 1474 states and 2800 transitions. [2018-10-24 22:15:47,334 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 22:15:47,334 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2800 transitions. [2018-10-24 22:15:47,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-10-24 22:15:47,342 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:15:47,343 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, 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] [2018-10-24 22:15:47,343 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:15:47,343 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:15:47,344 INFO L82 PathProgramCache]: Analyzing trace with hash -360553496, now seen corresponding path program 1 times [2018-10-24 22:15:47,344 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:15:47,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:15:47,345 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:15:47,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:15:47,345 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:15:47,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:15:47,619 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 22:15:47,619 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:15:47,620 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 22:15:47,620 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:15:47,622 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 22:15:47,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 22:15:47,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 22:15:47,623 INFO L87 Difference]: Start difference. First operand 1474 states and 2800 transitions. Second operand 5 states. [2018-10-24 22:15:55,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:15:55,323 INFO L93 Difference]: Finished difference Result 4419 states and 8483 transitions. [2018-10-24 22:15:55,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 22:15:55,330 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 129 [2018-10-24 22:15:55,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:15:55,350 INFO L225 Difference]: With dead ends: 4419 [2018-10-24 22:15:55,350 INFO L226 Difference]: Without dead ends: 2951 [2018-10-24 22:15:55,356 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 [2018-10-24 22:15:55,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2018-10-24 22:15:55,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 2925. [2018-10-24 22:15:55,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2925 states. [2018-10-24 22:15:55,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 5205 transitions. [2018-10-24 22:15:55,449 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 5205 transitions. Word has length 129 [2018-10-24 22:15:55,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:15:55,450 INFO L481 AbstractCegarLoop]: Abstraction has 2925 states and 5205 transitions. [2018-10-24 22:15:55,450 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 22:15:55,450 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 5205 transitions. [2018-10-24 22:15:55,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-10-24 22:15:55,461 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:15:55,461 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, 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] [2018-10-24 22:15:55,461 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:15:55,462 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:15:55,462 INFO L82 PathProgramCache]: Analyzing trace with hash 1538599181, now seen corresponding path program 1 times [2018-10-24 22:15:55,462 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:15:55,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:15:55,463 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:15:55,464 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:15:55,464 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:15:55,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:15:55,680 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 22:15:55,680 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:15:55,680 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 22:15:55,681 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:15:55,681 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 22:15:55,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 22:15:55,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 22:15:55,682 INFO L87 Difference]: Start difference. First operand 2925 states and 5205 transitions. Second operand 5 states. [2018-10-24 22:16:01,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:16:01,153 INFO L93 Difference]: Finished difference Result 7345 states and 13001 transitions. [2018-10-24 22:16:01,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 22:16:01,153 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 130 [2018-10-24 22:16:01,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:16:01,176 INFO L225 Difference]: With dead ends: 7345 [2018-10-24 22:16:01,177 INFO L226 Difference]: Without dead ends: 4426 [2018-10-24 22:16:01,186 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 [2018-10-24 22:16:01,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4426 states. [2018-10-24 22:16:01,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4426 to 4391. [2018-10-24 22:16:01,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4391 states. [2018-10-24 22:16:01,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4391 states to 4391 states and 6473 transitions. [2018-10-24 22:16:01,297 INFO L78 Accepts]: Start accepts. Automaton has 4391 states and 6473 transitions. Word has length 130 [2018-10-24 22:16:01,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:16:01,298 INFO L481 AbstractCegarLoop]: Abstraction has 4391 states and 6473 transitions. [2018-10-24 22:16:01,298 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 22:16:01,298 INFO L276 IsEmpty]: Start isEmpty. Operand 4391 states and 6473 transitions. [2018-10-24 22:16:01,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-10-24 22:16:01,301 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:16:01,302 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, 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] [2018-10-24 22:16:01,302 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:16:01,302 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:16:01,302 INFO L82 PathProgramCache]: Analyzing trace with hash 1623571697, now seen corresponding path program 1 times [2018-10-24 22:16:01,302 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:16:01,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:16:01,303 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:16:01,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:16:01,304 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:16:01,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:16:01,476 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 22:16:01,477 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:16:01,477 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 22:16:01,477 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:16:01,478 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 22:16:01,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 22:16:01,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 22:16:01,478 INFO L87 Difference]: Start difference. First operand 4391 states and 6473 transitions. Second operand 5 states. [2018-10-24 22:16:13,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:16:13,005 INFO L93 Difference]: Finished difference Result 14819 states and 21982 transitions. [2018-10-24 22:16:13,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 22:16:13,009 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 132 [2018-10-24 22:16:13,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:16:13,052 INFO L225 Difference]: With dead ends: 14819 [2018-10-24 22:16:13,052 INFO L226 Difference]: Without dead ends: 10434 [2018-10-24 22:16:13,075 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 22:16:13,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10434 states. [2018-10-24 22:16:13,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10434 to 10284. [2018-10-24 22:16:13,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10284 states. [2018-10-24 22:16:13,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10284 states to 10284 states and 13624 transitions. [2018-10-24 22:16:13,326 INFO L78 Accepts]: Start accepts. Automaton has 10284 states and 13624 transitions. Word has length 132 [2018-10-24 22:16:13,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:16:13,327 INFO L481 AbstractCegarLoop]: Abstraction has 10284 states and 13624 transitions. [2018-10-24 22:16:13,327 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 22:16:13,327 INFO L276 IsEmpty]: Start isEmpty. Operand 10284 states and 13624 transitions. [2018-10-24 22:16:13,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2018-10-24 22:16:13,334 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:16:13,335 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, 3, 3, 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] [2018-10-24 22:16:13,335 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:16:13,335 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:16:13,335 INFO L82 PathProgramCache]: Analyzing trace with hash 1302404966, now seen corresponding path program 1 times [2018-10-24 22:16:13,336 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:16:13,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:16:13,337 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:16:13,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:16:13,337 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:16:13,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:16:13,640 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-10-24 22:16:13,640 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:16:13,641 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 22:16:13,641 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:16:13,641 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 22:16:13,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 22:16:13,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 22:16:13,642 INFO L87 Difference]: Start difference. First operand 10284 states and 13624 transitions. Second operand 4 states. [2018-10-24 22:16:20,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:16:20,928 INFO L93 Difference]: Finished difference Result 37616 states and 51784 transitions. [2018-10-24 22:16:20,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 22:16:20,930 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 236 [2018-10-24 22:16:20,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:16:21,033 INFO L225 Difference]: With dead ends: 37616 [2018-10-24 22:16:21,033 INFO L226 Difference]: Without dead ends: 27338 [2018-10-24 22:16:21,094 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 [2018-10-24 22:16:21,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27338 states. [2018-10-24 22:16:21,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27338 to 27325. [2018-10-24 22:16:21,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27325 states. [2018-10-24 22:16:21,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27325 states to 27325 states and 35001 transitions. [2018-10-24 22:16:21,669 INFO L78 Accepts]: Start accepts. Automaton has 27325 states and 35001 transitions. Word has length 236 [2018-10-24 22:16:21,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:16:21,670 INFO L481 AbstractCegarLoop]: Abstraction has 27325 states and 35001 transitions. [2018-10-24 22:16:21,670 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 22:16:21,670 INFO L276 IsEmpty]: Start isEmpty. Operand 27325 states and 35001 transitions. [2018-10-24 22:16:21,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2018-10-24 22:16:21,686 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:16:21,687 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, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 22:16:21,687 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:16:21,687 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:16:21,688 INFO L82 PathProgramCache]: Analyzing trace with hash -308767533, now seen corresponding path program 1 times [2018-10-24 22:16:21,688 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:16:21,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:16:21,689 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:16:21,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:16:21,689 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:16:21,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:16:22,284 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 233 proven. 73 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-10-24 22:16:22,285 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 22:16:22,285 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 22:16:22,286 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 337 with the following transitions: [2018-10-24 22:16:22,288 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], [1983], [1991], [1995], [1997], [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], [2156], [2157], [2161], [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] [2018-10-24 22:16:22,366 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 22:16:22,367 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 22:16:25,856 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 22:16:25,858 INFO L272 AbstractInterpreter]: Visited 129 different actions 129 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-24 22:16:25,887 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:16:25,888 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 22:16:28,444 INFO L232 lantSequenceWeakener]: Weakened 325 states. On average, predicates are now at 77.93% of their original sizes. [2018-10-24 22:16:28,446 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 22:16:28,940 INFO L413 sIntCurrentIteration]: We have 335 unified AI predicates [2018-10-24 22:16:28,941 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 22:16:28,942 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 22:16:28,942 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-10-24 22:16:28,942 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:16:28,943 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 22:16:28,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 22:16:28,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 22:16:28,944 INFO L87 Difference]: Start difference. First operand 27325 states and 35001 transitions. Second operand 7 states. [2018-10-24 22:16:36,075 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 22:18:09,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:18:09,764 INFO L93 Difference]: Finished difference Result 55349 states and 70734 transitions. [2018-10-24 22:18:09,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 22:18:09,765 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 336 [2018-10-24 22:18:09,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:18:09,844 INFO L225 Difference]: With dead ends: 55349 [2018-10-24 22:18:09,845 INFO L226 Difference]: Without dead ends: 28030 [2018-10-24 22:18:09,881 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 336 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-24 22:18:09,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28030 states. [2018-10-24 22:18:10,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28030 to 28028. [2018-10-24 22:18:10,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28028 states. [2018-10-24 22:18:10,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28028 states to 28028 states and 35716 transitions. [2018-10-24 22:18:10,403 INFO L78 Accepts]: Start accepts. Automaton has 28028 states and 35716 transitions. Word has length 336 [2018-10-24 22:18:10,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:18:10,403 INFO L481 AbstractCegarLoop]: Abstraction has 28028 states and 35716 transitions. [2018-10-24 22:18:10,403 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 22:18:10,403 INFO L276 IsEmpty]: Start isEmpty. Operand 28028 states and 35716 transitions. [2018-10-24 22:18:10,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2018-10-24 22:18:10,417 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:18:10,418 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 22:18:10,418 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:18:10,418 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:18:10,418 INFO L82 PathProgramCache]: Analyzing trace with hash 37048140, now seen corresponding path program 1 times [2018-10-24 22:18:10,419 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:18:10,420 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:18:10,420 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:18:10,420 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:18:10,420 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:18:10,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:18:10,960 WARN L179 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 22:18:11,351 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 22:18:11,783 WARN L179 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-10-24 22:18:12,097 WARN L179 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-10-24 22:18:12,635 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 215 proven. 219 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 22:18:12,636 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 22:18:12,636 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 22:18:12,636 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 442 with the following transitions: [2018-10-24 22:18:12,638 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], [1983], [1991], [1995], [1997], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2188], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2264], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2584], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-10-24 22:18:12,656 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 22:18:12,657 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 22:18:24,259 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 22:18:24,259 INFO L272 AbstractInterpreter]: Visited 196 different actions 385 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 22:18:24,293 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:18:24,293 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 22:18:28,443 INFO L232 lantSequenceWeakener]: Weakened 167 states. On average, predicates are now at 78.31% of their original sizes. [2018-10-24 22:18:28,443 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 22:19:03,097 INFO L413 sIntCurrentIteration]: We have 440 unified AI predicates [2018-10-24 22:19:03,097 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 22:19:03,097 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 22:19:03,097 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [11] total 24 [2018-10-24 22:19:03,097 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:19:03,098 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-10-24 22:19:03,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-10-24 22:19:03,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2018-10-24 22:19:03,099 INFO L87 Difference]: Start difference. First operand 28028 states and 35716 transitions. Second operand 15 states. Received shutdown request... [2018-10-24 22:19:17,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-24 22:19:17,406 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 22:19:17,411 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 22:19:17,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:19:17 BoogieIcfgContainer [2018-10-24 22:19:17,412 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 22:19:17,412 INFO L168 Benchmark]: Toolchain (without parser) took 227617.84 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 3.1 GB in the end (delta: -1.7 GB). Peak memory consumption was 880.1 MB. Max. memory is 7.1 GB. [2018-10-24 22:19:17,414 INFO L168 Benchmark]: CDTParser took 0.22 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. [2018-10-24 22:19:17,414 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1712.99 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2018-10-24 22:19:17,415 INFO L168 Benchmark]: Boogie Procedure Inliner took 480.65 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 777.5 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -949.1 MB). Peak memory consumption was 45.0 MB. Max. memory is 7.1 GB. [2018-10-24 22:19:17,416 INFO L168 Benchmark]: Boogie Preprocessor took 244.67 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: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 7.1 GB. [2018-10-24 22:19:17,417 INFO L168 Benchmark]: RCFGBuilder took 7659.55 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 505.1 MB). Peak memory consumption was 505.1 MB. Max. memory is 7.1 GB. [2018-10-24 22:19:17,417 INFO L168 Benchmark]: TraceAbstraction took 217514.19 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 3.1 GB in the end (delta: -1.4 GB). Peak memory consumption was 383.8 MB. Max. memory is 7.1 GB. [2018-10-24 22:19:17,423 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 1712.99 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 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 480.65 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 777.5 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -949.1 MB). Peak memory consumption was 45.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 244.67 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: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7659.55 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 505.1 MB). Peak memory consumption was 505.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 217514.19 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 3.1 GB in the end (delta: -1.4 GB). Peak memory consumption was 383.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 165]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 165). Cancelled while BasicCegarLoop was constructing difference of abstraction (28028states) and FLOYD_HOARE automaton (currently 9 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (49 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 217.4s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 154.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1834 SDtfs, 12474 SDslu, 881 SDs, 0 SdLazy, 22543 SolverSat, 5161 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 100.7s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 817 GetRequests, 717 SyntacticMatches, 56 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 35.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28028occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 15.2s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9966269284712481 AbsIntWeakeningRatio, 0.08258064516129032 AbsIntAvgWeakeningVarsNumRemoved, 401.4 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 6 MinimizatonAttempts, 226 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 1463 NumberOfCodeBlocks, 1463 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1456 ConstructedInterpolants, 0 QuantifiedInterpolants, 2039207 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 861/1153 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown