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/Problem03_label27_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 17:19:26,964 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 17:19:26,966 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 17:19:26,979 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 17:19:26,979 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 17:19:26,980 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 17:19:26,981 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 17:19:26,984 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 17:19:26,986 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 17:19:26,987 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 17:19:26,988 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 17:19:26,988 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 17:19:26,989 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 17:19:26,990 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 17:19:26,991 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 17:19:26,992 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 17:19:26,993 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 17:19:26,995 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 17:19:26,997 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 17:19:26,999 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 17:19:27,000 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 17:19:27,002 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 17:19:27,005 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 17:19:27,015 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 17:19:27,032 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 17:19:27,033 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 17:19:27,034 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 17:19:27,034 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 17:19:27,034 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 17:19:27,034 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 17:19:27,035 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 17:19:27,035 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 17:19:27,035 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 17:19:27,035 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 17:19:27,036 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 17:19:27,036 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 17:19:27,037 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 17:19:27,037 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 17:19:27,037 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 17:19:27,038 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 17:19:27,038 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 17:19:27,038 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 17:19:27,038 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 17:19:27,038 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 17:19:27,039 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 17:19:27,039 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 17:19:27,039 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 17:19:27,039 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 17:19:27,039 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 17:19:27,040 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 17:19:27,040 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 17:19:27,040 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 17:19:27,040 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 17:19:27,040 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 17:19:27,041 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 17:19:27,041 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 17:19:27,041 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 17:19:27,041 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 17:19:27,103 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 17:19:27,121 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 17:19:27,126 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 17:19:27,128 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 17:19:27,128 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 17:19:27,129 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label27_false-unreach-call.c [2018-10-24 17:19:27,198 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7e6b9b247/9bcce0fb694649efa044eb482615f2fb/FLAG269a1c7e1 [2018-10-24 17:19:27,868 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 17:19:27,869 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label27_false-unreach-call.c [2018-10-24 17:19:27,887 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7e6b9b247/9bcce0fb694649efa044eb482615f2fb/FLAG269a1c7e1 [2018-10-24 17:19:27,904 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7e6b9b247/9bcce0fb694649efa044eb482615f2fb [2018-10-24 17:19:27,917 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 17:19:27,919 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 17:19:27,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 17:19:27,920 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 17:19:27,924 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 17:19:27,925 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 05:19:27" (1/1) ... [2018-10-24 17:19:27,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66b5a5b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:19:27, skipping insertion in model container [2018-10-24 17:19:27,929 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 05:19:27" (1/1) ... [2018-10-24 17:19:27,939 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 17:19:28,020 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 17:19:28,774 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 17:19:28,780 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 17:19:29,153 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 17:19:29,176 INFO L193 MainTranslator]: Completed translation [2018-10-24 17:19:29,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:19:29 WrapperNode [2018-10-24 17:19:29,177 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 17:19:29,178 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 17:19:29,178 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 17:19:29,179 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 17:19:29,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:19:29" (1/1) ... [2018-10-24 17:19:29,227 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:19:29" (1/1) ... [2018-10-24 17:19:29,459 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 17:19:29,459 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 17:19:29,459 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 17:19:29,460 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 17:19:29,471 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:19:29" (1/1) ... [2018-10-24 17:19:29,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:19:29" (1/1) ... [2018-10-24 17:19:29,483 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:19:29" (1/1) ... [2018-10-24 17:19:29,483 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:19:29" (1/1) ... [2018-10-24 17:19:29,532 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:19:29" (1/1) ... [2018-10-24 17:19:29,565 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:19:29" (1/1) ... [2018-10-24 17:19:29,583 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:19:29" (1/1) ... [2018-10-24 17:19:29,599 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 17:19:29,600 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 17:19:29,600 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 17:19:29,600 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 17:19:29,601 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:19:29" (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 17:19:29,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 17:19:29,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 17:19:29,672 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 17:19:29,672 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 17:19:29,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 17:19:29,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 17:19:29,673 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 17:19:29,673 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 17:19:35,392 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 17:19:35,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 05:19:35 BoogieIcfgContainer [2018-10-24 17:19:35,393 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 17:19:35,394 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 17:19:35,394 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 17:19:35,398 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 17:19:35,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 05:19:27" (1/3) ... [2018-10-24 17:19:35,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59bd424 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 05:19:35, skipping insertion in model container [2018-10-24 17:19:35,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:19:29" (2/3) ... [2018-10-24 17:19:35,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59bd424 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 05:19:35, skipping insertion in model container [2018-10-24 17:19:35,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 05:19:35" (3/3) ... [2018-10-24 17:19:35,403 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label27_false-unreach-call.c [2018-10-24 17:19:35,415 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 17:19:35,432 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 17:19:35,456 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 17:19:35,513 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 17:19:35,513 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 17:19:35,514 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 17:19:35,514 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 17:19:35,514 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 17:19:35,514 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 17:19:35,514 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 17:19:35,515 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 17:19:35,555 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2018-10-24 17:19:35,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2018-10-24 17:19:35,574 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:19:35,576 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:19:35,579 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:19:35,588 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:19:35,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1969334519, now seen corresponding path program 1 times [2018-10-24 17:19:35,591 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 17:19:35,656 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:19:35,656 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:19:35,656 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:19:35,657 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 17:19:35,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:19:36,521 WARN L179 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 17:19:36,776 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 17:19:36,778 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:19:36,779 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 17:19:36,779 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 17:19:36,786 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 17:19:36,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 17:19:36,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 17:19:36,808 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 3 states. [2018-10-24 17:19:38,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:19:38,882 INFO L93 Difference]: Finished difference Result 855 states and 1508 transitions. [2018-10-24 17:19:38,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 17:19:38,886 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2018-10-24 17:19:38,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:19:38,916 INFO L225 Difference]: With dead ends: 855 [2018-10-24 17:19:38,917 INFO L226 Difference]: Without dead ends: 541 [2018-10-24 17:19:38,927 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 17:19:38,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2018-10-24 17:19:39,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 527. [2018-10-24 17:19:39,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 527 states. [2018-10-24 17:19:39,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 901 transitions. [2018-10-24 17:19:39,048 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 901 transitions. Word has length 160 [2018-10-24 17:19:39,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:19:39,050 INFO L481 AbstractCegarLoop]: Abstraction has 527 states and 901 transitions. [2018-10-24 17:19:39,050 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 17:19:39,050 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 901 transitions. [2018-10-24 17:19:39,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2018-10-24 17:19:39,058 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:19:39,059 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 17:19:39,059 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:19:39,059 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:19:39,060 INFO L82 PathProgramCache]: Analyzing trace with hash -380074384, now seen corresponding path program 1 times [2018-10-24 17:19:39,060 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 17:19:39,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:19:39,062 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:19:39,062 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:19:39,062 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 17:19:39,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:19:39,400 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:19:39,400 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:19:39,400 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 17:19:39,400 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 17:19:39,403 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 17:19:39,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 17:19:39,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 17:19:39,404 INFO L87 Difference]: Start difference. First operand 527 states and 901 transitions. Second operand 6 states. [2018-10-24 17:19:43,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:19:43,085 INFO L93 Difference]: Finished difference Result 1590 states and 2790 transitions. [2018-10-24 17:19:43,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-24 17:19:43,096 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 170 [2018-10-24 17:19:43,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:19:43,111 INFO L225 Difference]: With dead ends: 1590 [2018-10-24 17:19:43,111 INFO L226 Difference]: Without dead ends: 1069 [2018-10-24 17:19:43,115 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 17:19:43,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1069 states. [2018-10-24 17:19:43,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1069 to 1024. [2018-10-24 17:19:43,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1024 states. [2018-10-24 17:19:43,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1024 states to 1024 states and 1744 transitions. [2018-10-24 17:19:43,189 INFO L78 Accepts]: Start accepts. Automaton has 1024 states and 1744 transitions. Word has length 170 [2018-10-24 17:19:43,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:19:43,189 INFO L481 AbstractCegarLoop]: Abstraction has 1024 states and 1744 transitions. [2018-10-24 17:19:43,189 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 17:19:43,190 INFO L276 IsEmpty]: Start isEmpty. Operand 1024 states and 1744 transitions. [2018-10-24 17:19:43,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2018-10-24 17:19:43,195 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:19:43,195 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 17:19:43,195 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:19:43,196 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:19:43,196 INFO L82 PathProgramCache]: Analyzing trace with hash -1995964296, now seen corresponding path program 1 times [2018-10-24 17:19:43,196 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 17:19:43,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:19:43,198 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:19:43,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:19:43,198 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 17:19:43,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:19:43,461 WARN L179 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 17:19:43,531 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:19:43,531 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:19:43,532 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 17:19:43,532 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 17:19:43,533 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 17:19:43,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 17:19:43,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 17:19:43,534 INFO L87 Difference]: Start difference. First operand 1024 states and 1744 transitions. Second operand 5 states. [2018-10-24 17:19:46,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:19:46,916 INFO L93 Difference]: Finished difference Result 3166 states and 5668 transitions. [2018-10-24 17:19:46,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 17:19:46,917 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 171 [2018-10-24 17:19:46,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:19:46,937 INFO L225 Difference]: With dead ends: 3166 [2018-10-24 17:19:46,937 INFO L226 Difference]: Without dead ends: 2148 [2018-10-24 17:19:46,947 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 17:19:46,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2148 states. [2018-10-24 17:19:47,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2148 to 2105. [2018-10-24 17:19:47,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2105 states. [2018-10-24 17:19:47,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2105 states to 2105 states and 3420 transitions. [2018-10-24 17:19:47,042 INFO L78 Accepts]: Start accepts. Automaton has 2105 states and 3420 transitions. Word has length 171 [2018-10-24 17:19:47,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:19:47,042 INFO L481 AbstractCegarLoop]: Abstraction has 2105 states and 3420 transitions. [2018-10-24 17:19:47,042 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 17:19:47,042 INFO L276 IsEmpty]: Start isEmpty. Operand 2105 states and 3420 transitions. [2018-10-24 17:19:47,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2018-10-24 17:19:47,050 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:19:47,050 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 17:19:47,050 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:19:47,051 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:19:47,051 INFO L82 PathProgramCache]: Analyzing trace with hash 1636143245, now seen corresponding path program 1 times [2018-10-24 17:19:47,051 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 17:19:47,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:19:47,052 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:19:47,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:19:47,052 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 17:19:47,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:19:47,415 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:19:47,415 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:19:47,416 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 17:19:47,416 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 17:19:47,417 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 17:19:47,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 17:19:47,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 17:19:47,417 INFO L87 Difference]: Start difference. First operand 2105 states and 3420 transitions. Second operand 3 states. [2018-10-24 17:19:48,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:19:48,846 INFO L93 Difference]: Finished difference Result 6093 states and 10292 transitions. [2018-10-24 17:19:48,855 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 17:19:48,855 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 173 [2018-10-24 17:19:48,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:19:48,888 INFO L225 Difference]: With dead ends: 6093 [2018-10-24 17:19:48,889 INFO L226 Difference]: Without dead ends: 3994 [2018-10-24 17:19:48,902 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 17:19:48,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3994 states. [2018-10-24 17:19:49,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3994 to 3991. [2018-10-24 17:19:49,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3991 states. [2018-10-24 17:19:49,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3991 states to 3991 states and 6333 transitions. [2018-10-24 17:19:49,145 INFO L78 Accepts]: Start accepts. Automaton has 3991 states and 6333 transitions. Word has length 173 [2018-10-24 17:19:49,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:19:49,146 INFO L481 AbstractCegarLoop]: Abstraction has 3991 states and 6333 transitions. [2018-10-24 17:19:49,146 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 17:19:49,146 INFO L276 IsEmpty]: Start isEmpty. Operand 3991 states and 6333 transitions. [2018-10-24 17:19:49,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2018-10-24 17:19:49,157 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:19:49,157 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 17:19:49,158 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:19:49,158 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:19:49,158 INFO L82 PathProgramCache]: Analyzing trace with hash 1602085481, now seen corresponding path program 1 times [2018-10-24 17:19:49,158 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 17:19:49,159 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:19:49,160 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:19:49,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:19:49,160 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 17:19:49,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:19:49,407 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:19:49,407 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:19:49,408 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 17:19:49,408 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 17:19:49,409 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 17:19:49,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 17:19:49,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 17:19:49,409 INFO L87 Difference]: Start difference. First operand 3991 states and 6333 transitions. Second operand 3 states. [2018-10-24 17:19:51,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:19:51,750 INFO L93 Difference]: Finished difference Result 11694 states and 19304 transitions. [2018-10-24 17:19:51,751 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 17:19:51,751 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 175 [2018-10-24 17:19:51,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:19:51,799 INFO L225 Difference]: With dead ends: 11694 [2018-10-24 17:19:51,800 INFO L226 Difference]: Without dead ends: 7709 [2018-10-24 17:19:51,824 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 17:19:51,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7709 states. [2018-10-24 17:19:52,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7709 to 7701. [2018-10-24 17:19:52,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7701 states. [2018-10-24 17:19:52,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7701 states to 7701 states and 12061 transitions. [2018-10-24 17:19:52,088 INFO L78 Accepts]: Start accepts. Automaton has 7701 states and 12061 transitions. Word has length 175 [2018-10-24 17:19:52,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:19:52,089 INFO L481 AbstractCegarLoop]: Abstraction has 7701 states and 12061 transitions. [2018-10-24 17:19:52,089 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 17:19:52,089 INFO L276 IsEmpty]: Start isEmpty. Operand 7701 states and 12061 transitions. [2018-10-24 17:19:52,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2018-10-24 17:19:52,111 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:19:52,111 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 17:19:52,111 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:19:52,112 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:19:52,112 INFO L82 PathProgramCache]: Analyzing trace with hash 535127932, now seen corresponding path program 1 times [2018-10-24 17:19:52,112 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 17:19:52,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:19:52,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:19:52,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:19:52,114 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 17:19:52,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:19:52,357 WARN L179 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 17:19:52,496 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:19:52,497 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:19:52,497 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 17:19:52,497 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 17:19:52,498 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 17:19:52,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 17:19:52,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 17:19:52,499 INFO L87 Difference]: Start difference. First operand 7701 states and 12061 transitions. Second operand 6 states. [2018-10-24 17:19:54,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:19:54,731 INFO L93 Difference]: Finished difference Result 15949 states and 26069 transitions. [2018-10-24 17:19:54,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 17:19:54,739 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 180 [2018-10-24 17:19:54,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:19:54,798 INFO L225 Difference]: With dead ends: 15949 [2018-10-24 17:19:54,798 INFO L226 Difference]: Without dead ends: 8254 [2018-10-24 17:19:54,843 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 17:19:54,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8254 states. [2018-10-24 17:19:55,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8254 to 8040. [2018-10-24 17:19:55,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8040 states. [2018-10-24 17:19:55,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8040 states to 8040 states and 11699 transitions. [2018-10-24 17:19:55,112 INFO L78 Accepts]: Start accepts. Automaton has 8040 states and 11699 transitions. Word has length 180 [2018-10-24 17:19:55,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:19:55,113 INFO L481 AbstractCegarLoop]: Abstraction has 8040 states and 11699 transitions. [2018-10-24 17:19:55,113 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 17:19:55,113 INFO L276 IsEmpty]: Start isEmpty. Operand 8040 states and 11699 transitions. [2018-10-24 17:19:55,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2018-10-24 17:19:55,134 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:19:55,134 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 17:19:55,135 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:19:55,135 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:19:55,135 INFO L82 PathProgramCache]: Analyzing trace with hash -655106826, now seen corresponding path program 1 times [2018-10-24 17:19:55,136 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 17:19:55,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:19:55,141 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:19:55,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:19:55,141 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 17:19:55,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:19:55,437 WARN L179 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 17:19:55,646 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 23 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:19:55,647 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 17:19:55,647 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 17:19:55,648 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 185 with the following transitions: [2018-10-24 17:19:55,651 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [10], [12], [13], [17], [21], [25], [28], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [741], [743], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-24 17:19:55,773 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 17:19:55,773 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-10-24 17:23:58,622 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-10-24 17:23:58,623 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-10-24 17:23:58,626 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-24 17:23:58,626 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 17:23:58,626 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 17:23:58,642 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:23:58,642 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 17:23:58,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:23:58,846 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 17:23:58,895 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-24 17:23:59,097 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 17:23:59,098 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 17:23:59,103 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 17:23:59,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 05:23:59 BoogieIcfgContainer [2018-10-24 17:23:59,104 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 17:23:59,105 INFO L168 Benchmark]: Toolchain (without parser) took 271187.36 ms. Allocated memory was 1.5 GB in the beginning and 3.0 GB in the end (delta: 1.5 GB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -423.5 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-10-24 17:23:59,106 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 17:23:59,107 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1257.57 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-10-24 17:23:59,107 INFO L168 Benchmark]: Boogie Procedure Inliner took 280.94 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 742.4 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -867.3 MB). Peak memory consumption was 40.4 MB. Max. memory is 7.1 GB. [2018-10-24 17:23:59,111 INFO L168 Benchmark]: Boogie Preprocessor took 140.30 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: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2018-10-24 17:23:59,111 INFO L168 Benchmark]: RCFGBuilder took 5793.12 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 249.2 MB). Peak memory consumption was 249.2 MB. Max. memory is 7.1 GB. [2018-10-24 17:23:59,112 INFO L168 Benchmark]: TraceAbstraction took 263710.00 ms. Allocated memory was 2.3 GB in the beginning and 3.0 GB in the end (delta: 714.1 MB). Free memory was 1.9 GB in the beginning and 1.8 GB in the end (delta: 96.2 MB). Peak memory consumption was 810.2 MB. Max. memory is 7.1 GB. [2018-10-24 17:23:59,117 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 1257.57 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 280.94 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 742.4 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -867.3 MB). Peak memory consumption was 40.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 140.30 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: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5793.12 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 249.2 MB). Peak memory consumption was 249.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 263710.00 ms. Allocated memory was 2.3 GB in the beginning and 3.0 GB in the end (delta: 714.1 MB). Free memory was 1.9 GB in the beginning and 1.8 GB in the end (delta: 96.2 MB). Peak memory consumption was 810.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1494]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1494). Cancelled while BasicCegarLoop was analyzing trace of length 185 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 5 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 312 locations, 1 error locations. TIMEOUT Result, 263.6s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 15.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1609 SDtfs, 3844 SDslu, 827 SDs, 0 SdLazy, 6202 SolverSat, 1174 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 13 SyntacticMatches, 6 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8040occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 242.9s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 327 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 1029 NumberOfCodeBlocks, 1029 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1023 ConstructedInterpolants, 0 QuantifiedInterpolants, 391734 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 52/52 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown