java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem03_label16_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-25 00:12:59,756 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-25 00:12:59,759 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-25 00:12:59,775 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-25 00:12:59,775 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-25 00:12:59,777 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-25 00:12:59,778 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-25 00:12:59,781 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-25 00:12:59,783 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-25 00:12:59,784 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-25 00:12:59,792 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-25 00:12:59,793 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-25 00:12:59,794 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-25 00:12:59,797 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-25 00:12:59,800 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-25 00:12:59,801 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-25 00:12:59,802 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-25 00:12:59,805 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-25 00:12:59,807 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-25 00:12:59,812 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-25 00:12:59,813 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-25 00:12:59,815 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-25 00:12:59,817 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-25 00:12:59,829 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-10-25 00:12:59,844 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-25 00:12:59,844 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-25 00:12:59,847 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-25 00:12:59,847 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-25 00:12:59,848 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-25 00:12:59,848 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-25 00:12:59,848 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-25 00:12:59,848 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-25 00:12:59,848 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-25 00:12:59,849 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-25 00:12:59,849 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-25 00:12:59,849 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-25 00:12:59,849 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-25 00:12:59,849 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-25 00:12:59,850 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-25 00:12:59,850 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-25 00:12:59,851 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-25 00:12:59,851 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-25 00:12:59,851 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-25 00:12:59,851 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-25 00:12:59,852 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-25 00:12:59,852 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-25 00:12:59,852 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-25 00:12:59,852 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-25 00:12:59,852 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-25 00:12:59,853 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-25 00:12:59,853 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-25 00:12:59,853 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-25 00:12:59,853 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-25 00:12:59,853 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-25 00:12:59,854 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-25 00:12:59,854 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-25 00:12:59,854 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-25 00:12:59,854 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-25 00:12:59,854 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-25 00:12:59,855 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-25 00:12:59,901 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-25 00:12:59,918 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-25 00:12:59,922 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-25 00:12:59,923 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-25 00:12:59,924 INFO L276 PluginConnector]: CDTParser initialized [2018-10-25 00:12:59,925 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label16_true-unreach-call.c [2018-10-25 00:12:59,997 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b89dd7bea/cf4048e3aadd48b78b9ff08499163677/FLAG641c674b9 [2018-10-25 00:13:00,708 INFO L298 CDTParser]: Found 1 translation units. [2018-10-25 00:13:00,709 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label16_true-unreach-call.c [2018-10-25 00:13:00,734 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b89dd7bea/cf4048e3aadd48b78b9ff08499163677/FLAG641c674b9 [2018-10-25 00:13:00,755 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b89dd7bea/cf4048e3aadd48b78b9ff08499163677 [2018-10-25 00:13:00,768 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-25 00:13:00,771 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-25 00:13:00,772 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-25 00:13:00,773 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-25 00:13:00,777 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-25 00:13:00,778 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 12:13:00" (1/1) ... [2018-10-25 00:13:00,781 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@369c6633 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:13:00, skipping insertion in model container [2018-10-25 00:13:00,781 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 12:13:00" (1/1) ... [2018-10-25 00:13:00,792 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-25 00:13:00,883 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-25 00:13:01,598 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 00:13:01,606 INFO L189 MainTranslator]: Completed pre-run [2018-10-25 00:13:01,916 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 00:13:01,939 INFO L193 MainTranslator]: Completed translation [2018-10-25 00:13:01,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:13:01 WrapperNode [2018-10-25 00:13:01,940 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-25 00:13:01,941 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-25 00:13:01,941 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-25 00:13:01,941 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-25 00:13:01,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:13:01" (1/1) ... [2018-10-25 00:13:02,005 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:13:01" (1/1) ... [2018-10-25 00:13:02,281 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-25 00:13:02,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-25 00:13:02,282 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-25 00:13:02,282 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-25 00:13:02,297 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:13:01" (1/1) ... [2018-10-25 00:13:02,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:13:01" (1/1) ... [2018-10-25 00:13:02,307 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:13:01" (1/1) ... [2018-10-25 00:13:02,307 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:13:01" (1/1) ... [2018-10-25 00:13:02,351 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:13:01" (1/1) ... [2018-10-25 00:13:02,365 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:13:01" (1/1) ... [2018-10-25 00:13:02,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:13:01" (1/1) ... [2018-10-25 00:13:02,396 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-25 00:13:02,397 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-25 00:13:02,397 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-25 00:13:02,397 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-25 00:13:02,398 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:13:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-25 00:13:02,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-25 00:13:02,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-25 00:13:02,467 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-25 00:13:02,467 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-25 00:13:02,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-25 00:13:02,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-25 00:13:02,468 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-25 00:13:02,468 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-25 00:13:07,884 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-25 00:13:07,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 12:13:07 BoogieIcfgContainer [2018-10-25 00:13:07,885 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-25 00:13:07,888 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-25 00:13:07,888 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-25 00:13:07,891 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-25 00:13:07,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 12:13:00" (1/3) ... [2018-10-25 00:13:07,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d99a73a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 12:13:07, skipping insertion in model container [2018-10-25 00:13:07,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:13:01" (2/3) ... [2018-10-25 00:13:07,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d99a73a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 12:13:07, skipping insertion in model container [2018-10-25 00:13:07,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 12:13:07" (3/3) ... [2018-10-25 00:13:07,897 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label16_true-unreach-call.c [2018-10-25 00:13:07,908 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-25 00:13:07,919 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-25 00:13:07,941 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-25 00:13:07,996 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-25 00:13:07,996 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-25 00:13:07,996 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-25 00:13:07,996 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-25 00:13:07,996 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-25 00:13:07,997 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-25 00:13:07,997 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-25 00:13:07,997 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-25 00:13:08,043 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2018-10-25 00:13:08,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-10-25 00:13:08,074 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:13:08,076 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 00:13:08,079 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:13:08,087 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:13:08,087 INFO L82 PathProgramCache]: Analyzing trace with hash 1790401401, now seen corresponding path program 1 times [2018-10-25 00:13:08,090 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:13:08,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:13:08,152 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:13:08,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:13:08,153 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:13:08,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:13:09,113 WARN L179 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-25 00:13:09,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 00:13:09,326 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 00:13:09,327 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-25 00:13:09,327 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:13:09,334 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-25 00:13:09,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-25 00:13:09,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-25 00:13:09,355 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 3 states. [2018-10-25 00:13:11,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:13:11,267 INFO L93 Difference]: Finished difference Result 848 states and 1491 transitions. [2018-10-25 00:13:11,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-25 00:13:11,270 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 172 [2018-10-25 00:13:11,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:13:11,294 INFO L225 Difference]: With dead ends: 848 [2018-10-25 00:13:11,294 INFO L226 Difference]: Without dead ends: 534 [2018-10-25 00:13:11,302 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-25 00:13:11,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2018-10-25 00:13:11,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 532. [2018-10-25 00:13:11,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 532 states. [2018-10-25 00:13:11,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 867 transitions. [2018-10-25 00:13:11,439 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 867 transitions. Word has length 172 [2018-10-25 00:13:11,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:13:11,442 INFO L481 AbstractCegarLoop]: Abstraction has 532 states and 867 transitions. [2018-10-25 00:13:11,442 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-25 00:13:11,443 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 867 transitions. [2018-10-25 00:13:11,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2018-10-25 00:13:11,461 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:13:11,462 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 00:13:11,462 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:13:11,463 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:13:11,468 INFO L82 PathProgramCache]: Analyzing trace with hash 1193307901, now seen corresponding path program 1 times [2018-10-25 00:13:11,468 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:13:11,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:13:11,472 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:13:11,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:13:11,472 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:13:11,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:13:12,010 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 00:13:12,011 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 00:13:12,011 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-25 00:13:12,011 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:13:12,013 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-25 00:13:12,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-25 00:13:12,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-25 00:13:12,014 INFO L87 Difference]: Start difference. First operand 532 states and 867 transitions. Second operand 3 states. [2018-10-25 00:13:14,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:13:14,327 INFO L93 Difference]: Finished difference Result 1494 states and 2513 transitions. [2018-10-25 00:13:14,328 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-25 00:13:14,328 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 185 [2018-10-25 00:13:14,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:13:14,338 INFO L225 Difference]: With dead ends: 1494 [2018-10-25 00:13:14,338 INFO L226 Difference]: Without dead ends: 968 [2018-10-25 00:13:14,344 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 [2018-10-25 00:13:14,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2018-10-25 00:13:14,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 952. [2018-10-25 00:13:14,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 952 states. [2018-10-25 00:13:14,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 1529 transitions. [2018-10-25 00:13:14,394 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 1529 transitions. Word has length 185 [2018-10-25 00:13:14,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:13:14,395 INFO L481 AbstractCegarLoop]: Abstraction has 952 states and 1529 transitions. [2018-10-25 00:13:14,395 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-25 00:13:14,396 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 1529 transitions. [2018-10-25 00:13:14,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2018-10-25 00:13:14,400 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:13:14,400 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1] [2018-10-25 00:13:14,401 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:13:14,401 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:13:14,401 INFO L82 PathProgramCache]: Analyzing trace with hash 501674269, now seen corresponding path program 1 times [2018-10-25 00:13:14,402 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:13:14,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:13:14,403 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:13:14,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:13:14,403 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:13:14,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:13:14,655 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 27 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 00:13:14,656 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:13:14,656 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 00:13:14,657 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 197 with the following transitions: [2018-10-25 00:13:14,659 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [20], [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], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [837], [839], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-25 00:13:14,723 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 00:13:14,724 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 00:13:15,832 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-25 00:13:15,835 INFO L272 AbstractInterpreter]: Visited 173 different actions 173 times. Never merged. Never widened. Never found a fixpoint. Largest state had 88 variables. [2018-10-25 00:13:15,880 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:13:15,880 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-25 00:13:17,109 INFO L232 lantSequenceWeakener]: Weakened 187 states. On average, predicates are now at 71.98% of their original sizes. [2018-10-25 00:13:17,117 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-25 00:13:17,685 INFO L413 sIntCurrentIteration]: We have 195 unified AI predicates [2018-10-25 00:13:17,685 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-25 00:13:17,686 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-25 00:13:17,686 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [6] total 17 [2018-10-25 00:13:17,686 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:13:17,687 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-25 00:13:17,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-25 00:13:17,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2018-10-25 00:13:17,689 INFO L87 Difference]: Start difference. First operand 952 states and 1529 transitions. Second operand 13 states. [2018-10-25 00:14:53,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:14:53,762 INFO L93 Difference]: Finished difference Result 2108 states and 3387 transitions. [2018-10-25 00:14:53,762 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-25 00:14:53,762 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 196 [2018-10-25 00:14:53,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:14:53,770 INFO L225 Difference]: With dead ends: 2108 [2018-10-25 00:14:53,770 INFO L226 Difference]: Without dead ends: 1162 [2018-10-25 00:14:53,774 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 196 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2018-10-25 00:14:53,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1162 states. [2018-10-25 00:14:53,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1162 to 1160. [2018-10-25 00:14:53,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1160 states. [2018-10-25 00:14:53,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1160 states to 1160 states and 1747 transitions. [2018-10-25 00:14:53,812 INFO L78 Accepts]: Start accepts. Automaton has 1160 states and 1747 transitions. Word has length 196 [2018-10-25 00:14:53,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:14:53,812 INFO L481 AbstractCegarLoop]: Abstraction has 1160 states and 1747 transitions. [2018-10-25 00:14:53,812 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-25 00:14:53,812 INFO L276 IsEmpty]: Start isEmpty. Operand 1160 states and 1747 transitions. [2018-10-25 00:14:53,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2018-10-25 00:14:53,818 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:14:53,818 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 00:14:53,819 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:14:53,819 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:14:53,819 INFO L82 PathProgramCache]: Analyzing trace with hash -1911484622, now seen corresponding path program 1 times [2018-10-25 00:14:53,819 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:14:53,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:14:53,821 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:14:53,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:14:53,821 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:14:53,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:14:54,292 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 36 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 00:14:54,292 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:14:54,293 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 00:14:54,293 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 206 with the following transitions: [2018-10-25 00:14:54,294 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [20], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [64], [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], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [837], [839], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-25 00:14:54,304 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 00:14:54,305 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 00:14:57,677 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-25 00:14:57,677 INFO L272 AbstractInterpreter]: Visited 177 different actions 352 times. Merged at 7 different actions 10 times. Never widened. Found 2 fixpoints after 2 different actions. Largest state had 88 variables. [2018-10-25 00:14:57,710 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:14:57,712 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-25 00:14:57,712 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:14:57,712 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 [2018-10-25 00:14:57,726 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:14:57,726 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-25 00:14:57,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:14:57,961 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-25 00:14:58,554 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 36 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 00:14:58,555 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-25 00:14:59,187 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 36 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 00:14:59,226 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-25 00:14:59,226 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2018-10-25 00:14:59,227 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-25 00:14:59,227 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-25 00:14:59,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-25 00:14:59,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2018-10-25 00:14:59,228 INFO L87 Difference]: Start difference. First operand 1160 states and 1747 transitions. Second operand 9 states. [2018-10-25 00:15:00,585 WARN L179 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-10-25 00:15:11,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:15:11,770 INFO L93 Difference]: Finished difference Result 9426 states and 19261 transitions. [2018-10-25 00:15:11,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-10-25 00:15:11,771 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 205 [2018-10-25 00:15:11,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:15:11,883 INFO L225 Difference]: With dead ends: 9426 [2018-10-25 00:15:11,883 INFO L226 Difference]: Without dead ends: 8480 [2018-10-25 00:15:11,928 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 471 GetRequests, 433 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=312, Invalid=1248, Unknown=0, NotChecked=0, Total=1560 [2018-10-25 00:15:11,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8480 states. [2018-10-25 00:15:12,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8480 to 8113. [2018-10-25 00:15:12,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8113 states. [2018-10-25 00:15:12,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8113 states to 8113 states and 12545 transitions. [2018-10-25 00:15:12,300 INFO L78 Accepts]: Start accepts. Automaton has 8113 states and 12545 transitions. Word has length 205 [2018-10-25 00:15:12,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:15:12,301 INFO L481 AbstractCegarLoop]: Abstraction has 8113 states and 12545 transitions. [2018-10-25 00:15:12,301 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-25 00:15:12,301 INFO L276 IsEmpty]: Start isEmpty. Operand 8113 states and 12545 transitions. [2018-10-25 00:15:12,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2018-10-25 00:15:12,341 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:15:12,341 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 00:15:12,342 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:15:12,342 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:15:12,342 INFO L82 PathProgramCache]: Analyzing trace with hash 1256463911, now seen corresponding path program 1 times [2018-10-25 00:15:12,342 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:15:12,343 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:15:12,343 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:15:12,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:15:12,344 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:15:12,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:15:12,861 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 51 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 00:15:12,862 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:15:12,862 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 00:15:12,862 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 220 with the following transitions: [2018-10-25 00:15:12,863 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [24], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [123], [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], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [837], [839], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-25 00:15:12,872 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 00:15:12,872 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 00:15:14,253 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-25 00:15:14,253 INFO L272 AbstractInterpreter]: Visited 176 different actions 346 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 88 variables. [2018-10-25 00:15:14,260 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:15:14,260 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-25 00:15:15,848 INFO L232 lantSequenceWeakener]: Weakened 216 states. On average, predicates are now at 71.78% of their original sizes. [2018-10-25 00:15:15,849 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-25 00:15:16,460 INFO L413 sIntCurrentIteration]: We have 218 unified AI predicates [2018-10-25 00:15:16,461 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-25 00:15:16,461 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-25 00:15:16,461 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [6] total 24 [2018-10-25 00:15:16,461 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:15:16,462 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-10-25 00:15:16,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-10-25 00:15:16,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2018-10-25 00:15:16,463 INFO L87 Difference]: Start difference. First operand 8113 states and 12545 transitions. Second operand 20 states. [2018-10-25 00:16:46,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:16:46,307 INFO L93 Difference]: Finished difference Result 16176 states and 24700 transitions. [2018-10-25 00:16:46,307 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-25 00:16:46,308 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 219 [2018-10-25 00:16:46,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:16:46,354 INFO L225 Difference]: With dead ends: 16176 [2018-10-25 00:16:46,354 INFO L226 Difference]: Without dead ends: 8277 [2018-10-25 00:16:46,391 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 227 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=181, Invalid=631, Unknown=0, NotChecked=0, Total=812 [2018-10-25 00:16:46,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8277 states. [2018-10-25 00:16:46,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8277 to 8274. [2018-10-25 00:16:46,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8274 states. [2018-10-25 00:16:46,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8274 states to 8274 states and 12224 transitions. [2018-10-25 00:16:46,608 INFO L78 Accepts]: Start accepts. Automaton has 8274 states and 12224 transitions. Word has length 219 [2018-10-25 00:16:46,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:16:46,608 INFO L481 AbstractCegarLoop]: Abstraction has 8274 states and 12224 transitions. [2018-10-25 00:16:46,609 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-10-25 00:16:46,609 INFO L276 IsEmpty]: Start isEmpty. Operand 8274 states and 12224 transitions. [2018-10-25 00:16:46,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2018-10-25 00:16:46,630 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:16:46,630 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-25 00:16:46,630 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:16:46,630 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:16:46,631 INFO L82 PathProgramCache]: Analyzing trace with hash 2003600888, now seen corresponding path program 1 times [2018-10-25 00:16:46,631 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:16:46,632 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:16:46,632 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:16:46,632 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:16:46,632 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:16:46,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:16:47,074 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 59 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 00:16:47,076 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:16:47,076 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 00:16:47,076 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 220 with the following transitions: [2018-10-25 00:16:47,076 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [64], [65], [68], [73], [75], [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], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [837], [839], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-25 00:16:47,084 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 00:16:47,084 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 00:16:49,257 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-25 00:16:49,258 INFO L272 AbstractInterpreter]: Visited 177 different actions 346 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 88 variables. [2018-10-25 00:16:49,267 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:16:49,267 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-25 00:16:49,267 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:16:49,267 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 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-25 00:16:49,282 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:16:49,282 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-25 00:16:49,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:16:49,459 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-25 00:16:49,570 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-10-25 00:16:49,571 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-25 00:16:50,057 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-10-25 00:16:50,080 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-10-25 00:16:50,080 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 7 [2018-10-25 00:16:50,080 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:16:50,081 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-25 00:16:50,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-25 00:16:50,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-10-25 00:16:50,081 INFO L87 Difference]: Start difference. First operand 8274 states and 12224 transitions. Second operand 3 states. [2018-10-25 00:16:52,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:16:52,251 INFO L93 Difference]: Finished difference Result 23168 states and 35721 transitions. [2018-10-25 00:16:52,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-25 00:16:52,253 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 219 [2018-10-25 00:16:52,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:16:52,353 INFO L225 Difference]: With dead ends: 23168 [2018-10-25 00:16:52,354 INFO L226 Difference]: Without dead ends: 15108 [2018-10-25 00:16:52,389 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 436 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-10-25 00:16:52,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15108 states. [2018-10-25 00:16:52,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15108 to 15080. [2018-10-25 00:16:52,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15080 states. [2018-10-25 00:16:52,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15080 states to 15080 states and 22901 transitions. [2018-10-25 00:16:52,834 INFO L78 Accepts]: Start accepts. Automaton has 15080 states and 22901 transitions. Word has length 219 [2018-10-25 00:16:52,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:16:52,834 INFO L481 AbstractCegarLoop]: Abstraction has 15080 states and 22901 transitions. [2018-10-25 00:16:52,835 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-25 00:16:52,835 INFO L276 IsEmpty]: Start isEmpty. Operand 15080 states and 22901 transitions. [2018-10-25 00:16:52,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2018-10-25 00:16:52,871 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:16:52,872 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-25 00:16:52,872 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:16:52,872 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:16:52,872 INFO L82 PathProgramCache]: Analyzing trace with hash -713146558, now seen corresponding path program 1 times [2018-10-25 00:16:52,873 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:16:52,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:16:52,874 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:16:52,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:16:52,874 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:16:52,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:16:53,348 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 72 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-10-25 00:16:53,348 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:16:53,349 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 00:16:53,349 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 231 with the following transitions: [2018-10-25 00:16:53,349 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [20], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [64], [65], [68], [73], [75], [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], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [837], [839], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-25 00:16:53,355 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 00:16:53,355 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 00:16:55,929 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-25 00:16:55,929 INFO L272 AbstractInterpreter]: Visited 178 different actions 354 times. Merged at 7 different actions 10 times. Never widened. Found 2 fixpoints after 2 different actions. Largest state had 88 variables. [2018-10-25 00:16:55,939 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:16:55,939 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-25 00:16:55,939 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:16:55,939 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 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-25 00:16:55,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:16:55,949 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-25 00:16:56,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:16:56,148 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-25 00:16:56,246 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 61 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-10-25 00:16:56,246 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-25 00:16:57,052 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 65 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-10-25 00:16:57,085 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-25 00:16:57,085 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 9 [2018-10-25 00:16:57,085 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-25 00:16:57,087 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-25 00:16:57,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-25 00:16:57,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-10-25 00:16:57,087 INFO L87 Difference]: Start difference. First operand 15080 states and 22901 transitions. Second operand 8 states. [2018-10-25 00:16:59,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:16:59,269 INFO L93 Difference]: Finished difference Result 28374 states and 43436 transitions. [2018-10-25 00:16:59,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-25 00:16:59,270 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 230 [2018-10-25 00:16:59,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:16:59,335 INFO L225 Difference]: With dead ends: 28374 [2018-10-25 00:16:59,336 INFO L226 Difference]: Without dead ends: 14797 [2018-10-25 00:16:59,371 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 459 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2018-10-25 00:16:59,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14797 states. [2018-10-25 00:16:59,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14797 to 14790. [2018-10-25 00:16:59,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14790 states. [2018-10-25 00:16:59,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14790 states to 14790 states and 20716 transitions. [2018-10-25 00:16:59,829 INFO L78 Accepts]: Start accepts. Automaton has 14790 states and 20716 transitions. Word has length 230 [2018-10-25 00:16:59,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:16:59,829 INFO L481 AbstractCegarLoop]: Abstraction has 14790 states and 20716 transitions. [2018-10-25 00:16:59,830 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-25 00:16:59,830 INFO L276 IsEmpty]: Start isEmpty. Operand 14790 states and 20716 transitions. [2018-10-25 00:16:59,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2018-10-25 00:16:59,875 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:16:59,876 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 00:16:59,876 INFO L424 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:16:59,876 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:16:59,876 INFO L82 PathProgramCache]: Analyzing trace with hash 1891198623, now seen corresponding path program 1 times [2018-10-25 00:16:59,876 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:16:59,877 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:16:59,877 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:16:59,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:16:59,879 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:16:59,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:17:00,532 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 00:17:00,533 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 00:17:00,533 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-25 00:17:00,533 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:17:00,534 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-25 00:17:00,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-25 00:17:00,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-25 00:17:00,534 INFO L87 Difference]: Start difference. First operand 14790 states and 20716 transitions. Second operand 3 states. Received shutdown request... [2018-10-25 00:17:01,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-25 00:17:01,731 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-25 00:17:01,736 WARN L205 ceAbstractionStarter]: Timeout [2018-10-25 00:17:01,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 12:17:01 BoogieIcfgContainer [2018-10-25 00:17:01,737 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-25 00:17:01,738 INFO L168 Benchmark]: Toolchain (without parser) took 240968.78 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 2.7 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-10-25 00:17:01,739 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. [2018-10-25 00:17:01,739 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1168.68 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. [2018-10-25 00:17:01,740 INFO L168 Benchmark]: Boogie Procedure Inliner took 340.54 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: -866.5 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. [2018-10-25 00:17:01,741 INFO L168 Benchmark]: Boogie Preprocessor took 115.26 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: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. [2018-10-25 00:17:01,742 INFO L168 Benchmark]: RCFGBuilder took 5487.64 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: 268.3 MB). Peak memory consumption was 268.3 MB. Max. memory is 7.1 GB. [2018-10-25 00:17:01,742 INFO L168 Benchmark]: TraceAbstraction took 233849.14 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.9 GB in the beginning and 2.7 GB in the end (delta: -751.1 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-10-25 00:17:01,747 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 1168.68 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 340.54 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: -866.5 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.26 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: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5487.64 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: 268.3 MB). Peak memory consumption was 268.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 233849.14 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.9 GB in the beginning and 2.7 GB in the end (delta: -751.1 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1530]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1530). Cancelled while BasicCegarLoop was constructing difference of abstraction (14790states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (3488 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 312 locations, 1 error locations. TIMEOUT Result, 233.7s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 208.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2407 SDtfs, 9153 SDslu, 2955 SDs, 0 SdLazy, 19602 SolverSat, 3150 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 167.1s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 1826 GetRequests, 1721 SyntacticMatches, 7 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 574 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15080occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 10.8s AbstIntTime, 5 AbstIntIterations, 2 AbstIntStrong, 0.999038717875255 AbsIntWeakeningRatio, 0.29539951573849876 AbsIntAvgWeakeningVarsNumRemoved, 28.227602905569007 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 7 MinimizatonAttempts, 425 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 5.8s InterpolantComputationTime, 2353 NumberOfCodeBlocks, 2353 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 2993 ConstructedInterpolants, 0 QuantifiedInterpolants, 1331854 SizeOfPredicates, 5 NumberOfNonLiveVariables, 3264 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 14 InterpolantComputations, 5 PerfectInterpolantSequences, 730/760 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown