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/Problem01_label08_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 19:12:07,070 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 19:12:07,073 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 19:12:07,086 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 19:12:07,087 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 19:12:07,088 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 19:12:07,089 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 19:12:07,091 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 19:12:07,093 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 19:12:07,094 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 19:12:07,095 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 19:12:07,095 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 19:12:07,096 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 19:12:07,099 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 19:12:07,100 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 19:12:07,101 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 19:12:07,101 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 19:12:07,104 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 19:12:07,113 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 19:12:07,115 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 19:12:07,119 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 19:12:07,122 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 19:12:07,127 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 19:12:07,138 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 19:12:07,138 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 19:12:07,141 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 19:12:07,141 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 19:12:07,142 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 19:12:07,170 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 19:12:07,170 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 19:12:07,171 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 19:12:07,171 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 19:12:07,171 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 19:12:07,172 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 19:12:07,172 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 19:12:07,172 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 19:12:07,172 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 19:12:07,172 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 19:12:07,173 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 19:12:07,173 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 19:12:07,174 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 19:12:07,174 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 19:12:07,174 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 19:12:07,175 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 19:12:07,175 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 19:12:07,175 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 19:12:07,175 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 19:12:07,175 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 19:12:07,176 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 19:12:07,177 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 19:12:07,178 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 19:12:07,178 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 19:12:07,178 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 19:12:07,178 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 19:12:07,179 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 19:12:07,180 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 19:12:07,180 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 19:12:07,180 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 19:12:07,180 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 19:12:07,180 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 19:12:07,181 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 19:12:07,181 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 19:12:07,227 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 19:12:07,245 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 19:12:07,249 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 19:12:07,251 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 19:12:07,251 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 19:12:07,252 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label08_true-unreach-call_false-termination.c [2018-10-24 19:12:07,326 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a978bcf91/ff8afafc6cce4efa89bc982e2e093956/FLAG1343b5cca [2018-10-24 19:12:07,942 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 19:12:07,943 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label08_true-unreach-call_false-termination.c [2018-10-24 19:12:07,963 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a978bcf91/ff8afafc6cce4efa89bc982e2e093956/FLAG1343b5cca [2018-10-24 19:12:07,980 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a978bcf91/ff8afafc6cce4efa89bc982e2e093956 [2018-10-24 19:12:07,992 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 19:12:07,993 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 19:12:07,994 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 19:12:07,994 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 19:12:07,999 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 19:12:08,000 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:12:07" (1/1) ... [2018-10-24 19:12:08,002 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a61733a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:12:08, skipping insertion in model container [2018-10-24 19:12:08,003 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:12:07" (1/1) ... [2018-10-24 19:12:08,015 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 19:12:08,087 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 19:12:08,570 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 19:12:08,585 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 19:12:08,724 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 19:12:08,746 INFO L193 MainTranslator]: Completed translation [2018-10-24 19:12:08,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:12:08 WrapperNode [2018-10-24 19:12:08,747 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 19:12:08,748 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 19:12:08,749 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 19:12:08,749 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 19:12:08,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:12:08" (1/1) ... [2018-10-24 19:12:08,797 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:12:08" (1/1) ... [2018-10-24 19:12:08,961 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 19:12:08,961 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 19:12:08,962 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 19:12:08,962 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 19:12:08,973 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:12:08" (1/1) ... [2018-10-24 19:12:08,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:12:08" (1/1) ... [2018-10-24 19:12:08,979 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:12:08" (1/1) ... [2018-10-24 19:12:08,979 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:12:08" (1/1) ... [2018-10-24 19:12:09,000 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:12:08" (1/1) ... [2018-10-24 19:12:09,012 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:12:08" (1/1) ... [2018-10-24 19:12:09,020 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:12:08" (1/1) ... [2018-10-24 19:12:09,029 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 19:12:09,030 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 19:12:09,030 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 19:12:09,030 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 19:12:09,031 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:12:08" (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 19:12:09,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 19:12:09,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 19:12:09,115 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 19:12:09,115 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 19:12:09,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 19:12:09,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 19:12:09,116 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 19:12:09,116 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 19:12:12,380 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 19:12:12,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:12:12 BoogieIcfgContainer [2018-10-24 19:12:12,382 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 19:12:12,383 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 19:12:12,383 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 19:12:12,386 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 19:12:12,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:12:07" (1/3) ... [2018-10-24 19:12:12,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eb0361b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:12:12, skipping insertion in model container [2018-10-24 19:12:12,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:12:08" (2/3) ... [2018-10-24 19:12:12,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eb0361b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:12:12, skipping insertion in model container [2018-10-24 19:12:12,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:12:12" (3/3) ... [2018-10-24 19:12:12,391 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label08_true-unreach-call_false-termination.c [2018-10-24 19:12:12,402 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 19:12:12,412 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 19:12:12,431 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 19:12:12,474 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 19:12:12,474 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 19:12:12,474 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 19:12:12,474 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 19:12:12,475 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 19:12:12,475 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 19:12:12,475 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 19:12:12,475 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 19:12:12,503 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states. [2018-10-24 19:12:12,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2018-10-24 19:12:12,517 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:12:12,519 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] [2018-10-24 19:12:12,521 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:12:12,527 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:12:12,528 INFO L82 PathProgramCache]: Analyzing trace with hash -682702232, now seen corresponding path program 1 times [2018-10-24 19:12:12,531 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:12:12,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:12:12,583 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:12:12,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:12:12,583 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:12:12,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:12:13,164 WARN L179 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 19:12:13,296 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 19:12:13,299 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:12:13,300 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 19:12:13,301 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:12:13,311 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 19:12:13,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 19:12:13,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 19:12:13,331 INFO L87 Difference]: Start difference. First operand 208 states. Second operand 3 states. [2018-10-24 19:12:14,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:12:14,827 INFO L93 Difference]: Finished difference Result 550 states and 941 transitions. [2018-10-24 19:12:14,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 19:12:14,834 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2018-10-24 19:12:14,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:12:14,853 INFO L225 Difference]: With dead ends: 550 [2018-10-24 19:12:14,854 INFO L226 Difference]: Without dead ends: 340 [2018-10-24 19:12:14,862 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 [2018-10-24 19:12:14,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2018-10-24 19:12:14,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2018-10-24 19:12:14,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2018-10-24 19:12:14,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 553 transitions. [2018-10-24 19:12:14,949 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 553 transitions. Word has length 120 [2018-10-24 19:12:14,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:12:14,953 INFO L481 AbstractCegarLoop]: Abstraction has 340 states and 553 transitions. [2018-10-24 19:12:14,953 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 19:12:14,953 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 553 transitions. [2018-10-24 19:12:14,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-10-24 19:12:14,963 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:12:14,963 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 19:12:14,964 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:12:14,964 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:12:14,964 INFO L82 PathProgramCache]: Analyzing trace with hash 1009333063, now seen corresponding path program 1 times [2018-10-24 19:12:14,965 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:12:14,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:12:14,969 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:12:14,970 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:12:14,970 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:12:15,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:12:15,230 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:12:15,231 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:12:15,231 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 19:12:15,231 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:12:15,234 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 19:12:15,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 19:12:15,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 19:12:15,235 INFO L87 Difference]: Start difference. First operand 340 states and 553 transitions. Second operand 6 states. [2018-10-24 19:12:17,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:12:17,119 INFO L93 Difference]: Finished difference Result 1075 states and 1835 transitions. [2018-10-24 19:12:17,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 19:12:17,122 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 131 [2018-10-24 19:12:17,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:12:17,132 INFO L225 Difference]: With dead ends: 1075 [2018-10-24 19:12:17,133 INFO L226 Difference]: Without dead ends: 741 [2018-10-24 19:12:17,139 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 19:12:17,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2018-10-24 19:12:17,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 724. [2018-10-24 19:12:17,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 724 states. [2018-10-24 19:12:17,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 1145 transitions. [2018-10-24 19:12:17,196 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 1145 transitions. Word has length 131 [2018-10-24 19:12:17,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:12:17,196 INFO L481 AbstractCegarLoop]: Abstraction has 724 states and 1145 transitions. [2018-10-24 19:12:17,196 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 19:12:17,196 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 1145 transitions. [2018-10-24 19:12:17,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-10-24 19:12:17,201 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:12:17,201 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 19:12:17,201 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:12:17,202 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:12:17,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1121563035, now seen corresponding path program 1 times [2018-10-24 19:12:17,202 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:12:17,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:12:17,203 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:12:17,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:12:17,204 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:12:17,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:12:17,666 WARN L179 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-10-24 19:12:17,792 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:12:17,792 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:12:17,792 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 19:12:17,793 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:12:17,793 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 19:12:17,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 19:12:17,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 19:12:17,794 INFO L87 Difference]: Start difference. First operand 724 states and 1145 transitions. Second operand 5 states. [2018-10-24 19:12:20,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:12:20,223 INFO L93 Difference]: Finished difference Result 1578 states and 2533 transitions. [2018-10-24 19:12:20,224 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 19:12:20,224 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 132 [2018-10-24 19:12:20,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:12:20,230 INFO L225 Difference]: With dead ends: 1578 [2018-10-24 19:12:20,231 INFO L226 Difference]: Without dead ends: 721 [2018-10-24 19:12:20,235 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 19:12:20,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2018-10-24 19:12:20,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 721. [2018-10-24 19:12:20,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 721 states. [2018-10-24 19:12:20,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 1069 transitions. [2018-10-24 19:12:20,273 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 1069 transitions. Word has length 132 [2018-10-24 19:12:20,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:12:20,273 INFO L481 AbstractCegarLoop]: Abstraction has 721 states and 1069 transitions. [2018-10-24 19:12:20,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 19:12:20,274 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 1069 transitions. [2018-10-24 19:12:20,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-10-24 19:12:20,278 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:12:20,280 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] [2018-10-24 19:12:20,280 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:12:20,280 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:12:20,281 INFO L82 PathProgramCache]: Analyzing trace with hash 915740739, now seen corresponding path program 1 times [2018-10-24 19:12:20,281 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:12:20,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:12:20,282 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:12:20,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:12:20,285 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:12:20,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:12:20,987 WARN L179 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 24 [2018-10-24 19:12:21,153 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 19:12:21,154 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:12:21,154 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 19:12:21,154 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:12:21,155 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 19:12:21,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 19:12:21,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 19:12:21,156 INFO L87 Difference]: Start difference. First operand 721 states and 1069 transitions. Second operand 5 states. [2018-10-24 19:12:22,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:12:22,394 INFO L93 Difference]: Finished difference Result 1572 states and 2365 transitions. [2018-10-24 19:12:22,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 19:12:22,395 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 133 [2018-10-24 19:12:22,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:12:22,404 INFO L225 Difference]: With dead ends: 1572 [2018-10-24 19:12:22,404 INFO L226 Difference]: Without dead ends: 720 [2018-10-24 19:12:22,407 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 19:12:22,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2018-10-24 19:12:22,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 720. [2018-10-24 19:12:22,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 720 states. [2018-10-24 19:12:22,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 1062 transitions. [2018-10-24 19:12:22,442 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 1062 transitions. Word has length 133 [2018-10-24 19:12:22,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:12:22,442 INFO L481 AbstractCegarLoop]: Abstraction has 720 states and 1062 transitions. [2018-10-24 19:12:22,443 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 19:12:22,443 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 1062 transitions. [2018-10-24 19:12:22,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-10-24 19:12:22,446 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:12:22,446 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 19:12:22,446 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:12:22,446 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:12:22,447 INFO L82 PathProgramCache]: Analyzing trace with hash -1024180077, now seen corresponding path program 1 times [2018-10-24 19:12:22,447 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:12:22,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:12:22,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:12:22,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:12:22,450 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:12:22,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:12:22,655 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:12:22,656 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:12:22,656 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 19:12:22,656 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:12:22,656 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 19:12:22,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 19:12:22,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 19:12:22,657 INFO L87 Difference]: Start difference. First operand 720 states and 1062 transitions. Second operand 3 states. [2018-10-24 19:12:23,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:12:23,365 INFO L93 Difference]: Finished difference Result 1882 states and 2820 transitions. [2018-10-24 19:12:23,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 19:12:23,367 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 136 [2018-10-24 19:12:23,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:12:23,375 INFO L225 Difference]: With dead ends: 1882 [2018-10-24 19:12:23,375 INFO L226 Difference]: Without dead ends: 1168 [2018-10-24 19:12:23,380 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 19:12:23,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2018-10-24 19:12:23,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 1164. [2018-10-24 19:12:23,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1164 states. [2018-10-24 19:12:23,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1164 states to 1164 states and 1592 transitions. [2018-10-24 19:12:23,417 INFO L78 Accepts]: Start accepts. Automaton has 1164 states and 1592 transitions. Word has length 136 [2018-10-24 19:12:23,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:12:23,418 INFO L481 AbstractCegarLoop]: Abstraction has 1164 states and 1592 transitions. [2018-10-24 19:12:23,418 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 19:12:23,418 INFO L276 IsEmpty]: Start isEmpty. Operand 1164 states and 1592 transitions. [2018-10-24 19:12:23,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2018-10-24 19:12:23,424 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:12:23,425 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:12:23,425 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:12:23,425 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:12:23,426 INFO L82 PathProgramCache]: Analyzing trace with hash 1336149662, now seen corresponding path program 1 times [2018-10-24 19:12:23,426 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:12:23,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:12:23,427 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:12:23,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:12:23,428 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:12:23,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:12:23,937 WARN L179 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-10-24 19:12:24,106 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 56 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:12:24,107 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 19:12:24,107 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 19:12:24,108 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 169 with the following transitions: [2018-10-24 19:12:24,111 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [97], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [597], [599], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-10-24 19:12:24,190 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 19:12:24,191 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 19:12:33,094 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 19:12:33,097 INFO L272 AbstractInterpreter]: Visited 69 different actions 69 times. Never merged. Never widened. Never found a fixpoint. Largest state had 42 variables. [2018-10-24 19:12:33,107 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:12:33,107 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 19:12:36,199 INFO L232 lantSequenceWeakener]: Weakened 108 states. On average, predicates are now at 79.83% of their original sizes. [2018-10-24 19:12:36,203 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 19:12:37,501 INFO L413 sIntCurrentIteration]: We have 167 unified AI predicates [2018-10-24 19:12:37,501 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 19:12:37,502 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 19:12:37,502 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [6] total 16 [2018-10-24 19:12:37,502 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:12:37,503 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-24 19:12:37,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-24 19:12:37,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-10-24 19:12:37,504 INFO L87 Difference]: Start difference. First operand 1164 states and 1592 transitions. Second operand 12 states. [2018-10-24 19:12:52,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:12:52,115 INFO L93 Difference]: Finished difference Result 2383 states and 3259 transitions. [2018-10-24 19:12:52,115 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-24 19:12:52,116 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 168 [2018-10-24 19:12:52,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:12:52,124 INFO L225 Difference]: With dead ends: 2383 [2018-10-24 19:12:52,125 INFO L226 Difference]: Without dead ends: 1225 [2018-10-24 19:12:52,130 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 173 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=106, Invalid=200, Unknown=0, NotChecked=0, Total=306 [2018-10-24 19:12:52,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1225 states. [2018-10-24 19:12:52,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1225 to 1225. [2018-10-24 19:12:52,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1225 states. [2018-10-24 19:12:52,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1225 states to 1225 states and 1658 transitions. [2018-10-24 19:12:52,168 INFO L78 Accepts]: Start accepts. Automaton has 1225 states and 1658 transitions. Word has length 168 [2018-10-24 19:12:52,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:12:52,168 INFO L481 AbstractCegarLoop]: Abstraction has 1225 states and 1658 transitions. [2018-10-24 19:12:52,169 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-24 19:12:52,169 INFO L276 IsEmpty]: Start isEmpty. Operand 1225 states and 1658 transitions. [2018-10-24 19:12:52,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2018-10-24 19:12:52,175 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:12:52,176 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:12:52,176 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:12:52,176 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:12:52,177 INFO L82 PathProgramCache]: Analyzing trace with hash 213477505, now seen corresponding path program 1 times [2018-10-24 19:12:52,177 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:12:52,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:12:52,178 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:12:52,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:12:52,178 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:12:52,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:12:52,438 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 60 proven. 15 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-24 19:12:52,439 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 19:12:52,439 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 19:12:52,439 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 178 with the following transitions: [2018-10-24 19:12:52,440 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [97], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [597], [599], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-10-24 19:12:52,448 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 19:12:52,453 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 19:13:15,520 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 19:13:15,521 INFO L272 AbstractInterpreter]: Visited 125 different actions 192 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-10-24 19:13:15,531 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:13:15,531 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 19:13:21,527 INFO L232 lantSequenceWeakener]: Weakened 159 states. On average, predicates are now at 80.86% of their original sizes. [2018-10-24 19:13:21,527 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 19:16:29,258 INFO L413 sIntCurrentIteration]: We have 176 unified AI predicates [2018-10-24 19:16:29,258 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 19:16:29,259 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 19:16:29,259 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [6] total 26 [2018-10-24 19:16:29,259 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:16:29,259 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-10-24 19:16:29,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-10-24 19:16:29,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=374, Unknown=0, NotChecked=0, Total=462 [2018-10-24 19:16:29,260 INFO L87 Difference]: Start difference. First operand 1225 states and 1658 transitions. Second operand 22 states. Received shutdown request... [2018-10-24 19:16:31,831 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 19:16:31,832 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 19:16:31,837 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 19:16:31,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 07:16:31 BoogieIcfgContainer [2018-10-24 19:16:31,837 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 19:16:31,838 INFO L168 Benchmark]: Toolchain (without parser) took 263846.10 ms. Allocated memory was 1.5 GB in the beginning and 3.7 GB in the end (delta: 2.2 GB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -344.4 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-10-24 19:16:31,839 INFO L168 Benchmark]: CDTParser took 0.21 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 19:16:31,840 INFO L168 Benchmark]: CACSL2BoogieTranslator took 753.56 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 44.9 MB). Peak memory consumption was 44.9 MB. Max. memory is 7.1 GB. [2018-10-24 19:16:31,841 INFO L168 Benchmark]: Boogie Procedure Inliner took 212.84 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 714.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -802.8 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. [2018-10-24 19:16:31,842 INFO L168 Benchmark]: Boogie Preprocessor took 67.91 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 19:16:31,842 INFO L168 Benchmark]: RCFGBuilder took 3351.91 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 105.3 MB). Peak memory consumption was 105.3 MB. Max. memory is 7.1 GB. [2018-10-24 19:16:31,844 INFO L168 Benchmark]: TraceAbstraction took 259454.59 ms. Allocated memory was 2.2 GB in the beginning and 3.7 GB in the end (delta: 1.5 GB). Free memory was 2.1 GB in the beginning and 1.8 GB in the end (delta: 308.2 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-10-24 19:16:31,849 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 753.56 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 44.9 MB). Peak memory consumption was 44.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 212.84 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 714.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -802.8 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 67.91 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 3351.91 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 105.3 MB). Peak memory consumption was 105.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 259454.59 ms. Allocated memory was 2.2 GB in the beginning and 3.7 GB in the end (delta: 1.5 GB). Free memory was 2.1 GB in the beginning and 1.8 GB in the end (delta: 308.2 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 515]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 515). Cancelled while BasicCegarLoop was constructing difference of abstraction (1225states) and FLOYD_HOARE automaton (currently 4 states, 22 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 22 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 208 locations, 1 error locations. TIMEOUT Result, 259.3s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 25.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 735 SDtfs, 2127 SDslu, 653 SDs, 0 SdLazy, 3353 SolverSat, 687 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.2s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 386 GetRequests, 235 SyntacticMatches, 99 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1091 ImplicationChecksByTransitivity, 190.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1225occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 32.0s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9946990244579673 AbsIntWeakeningRatio, 0.22157434402332363 AbsIntAvgWeakeningVarsNumRemoved, 1956.8629737609328 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 21 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 997 NumberOfCodeBlocks, 997 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 990 ConstructedInterpolants, 0 QuantifiedInterpolants, 840867 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 163/180 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown