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/Problem11_label38_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 21:12:29,189 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 21:12:29,191 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 21:12:29,203 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 21:12:29,203 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 21:12:29,204 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 21:12:29,206 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 21:12:29,207 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 21:12:29,209 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 21:12:29,210 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 21:12:29,211 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 21:12:29,211 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 21:12:29,212 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 21:12:29,213 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 21:12:29,214 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 21:12:29,215 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 21:12:29,216 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 21:12:29,218 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 21:12:29,220 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 21:12:29,222 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 21:12:29,223 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 21:12:29,224 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 21:12:29,227 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 21:12:29,234 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 21:12:29,235 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 21:12:29,236 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 21:12:29,237 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 21:12:29,237 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 21:12:29,261 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 21:12:29,261 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 21:12:29,262 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 21:12:29,262 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 21:12:29,262 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 21:12:29,263 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 21:12:29,263 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 21:12:29,263 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 21:12:29,263 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 21:12:29,264 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 21:12:29,264 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 21:12:29,264 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 21:12:29,265 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 21:12:29,265 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 21:12:29,265 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 21:12:29,265 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 21:12:29,266 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 21:12:29,266 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 21:12:29,266 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 21:12:29,266 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 21:12:29,266 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 21:12:29,267 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 21:12:29,267 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 21:12:29,267 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 21:12:29,267 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 21:12:29,268 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 21:12:29,268 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 21:12:29,268 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 21:12:29,268 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 21:12:29,268 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 21:12:29,269 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 21:12:29,269 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 21:12:29,269 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 21:12:29,269 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 21:12:29,340 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 21:12:29,357 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 21:12:29,362 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 21:12:29,364 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 21:12:29,364 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 21:12:29,365 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label38_true-unreach-call.c [2018-10-24 21:12:29,432 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/dd8755371/677e6f3e0409430198e6e6c020613aea/FLAG6a6a8de4a [2018-10-24 21:12:30,071 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 21:12:30,072 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label38_true-unreach-call.c [2018-10-24 21:12:30,087 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/dd8755371/677e6f3e0409430198e6e6c020613aea/FLAG6a6a8de4a [2018-10-24 21:12:30,103 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/dd8755371/677e6f3e0409430198e6e6c020613aea [2018-10-24 21:12:30,115 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 21:12:30,117 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 21:12:30,118 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 21:12:30,118 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 21:12:30,122 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 21:12:30,123 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:12:30" (1/1) ... [2018-10-24 21:12:30,126 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11290b0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:12:30, skipping insertion in model container [2018-10-24 21:12:30,127 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:12:30" (1/1) ... [2018-10-24 21:12:30,138 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 21:12:30,228 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 21:12:30,931 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:12:30,936 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 21:12:31,162 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:12:31,179 INFO L193 MainTranslator]: Completed translation [2018-10-24 21:12:31,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:12:31 WrapperNode [2018-10-24 21:12:31,180 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 21:12:31,181 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 21:12:31,181 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 21:12:31,181 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 21:12:31,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:12:31" (1/1) ... [2018-10-24 21:12:31,220 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:12:31" (1/1) ... [2018-10-24 21:12:31,451 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 21:12:31,452 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 21:12:31,452 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 21:12:31,452 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 21:12:31,463 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:12:31" (1/1) ... [2018-10-24 21:12:31,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:12:31" (1/1) ... [2018-10-24 21:12:31,474 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:12:31" (1/1) ... [2018-10-24 21:12:31,475 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:12:31" (1/1) ... [2018-10-24 21:12:31,538 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:12:31" (1/1) ... [2018-10-24 21:12:31,566 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:12:31" (1/1) ... [2018-10-24 21:12:31,582 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:12:31" (1/1) ... [2018-10-24 21:12:31,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 21:12:31,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 21:12:31,595 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 21:12:31,596 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 21:12:31,596 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:12:31" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 21:12:31,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 21:12:31,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 21:12:31,667 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 21:12:31,667 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 21:12:31,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 21:12:31,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 21:12:31,670 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 21:12:31,670 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 21:12:36,201 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 21:12:36,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:12:36 BoogieIcfgContainer [2018-10-24 21:12:36,202 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 21:12:36,204 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 21:12:36,205 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 21:12:36,208 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 21:12:36,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:12:30" (1/3) ... [2018-10-24 21:12:36,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e46182d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:12:36, skipping insertion in model container [2018-10-24 21:12:36,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:12:31" (2/3) ... [2018-10-24 21:12:36,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e46182d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:12:36, skipping insertion in model container [2018-10-24 21:12:36,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:12:36" (3/3) ... [2018-10-24 21:12:36,213 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label38_true-unreach-call.c [2018-10-24 21:12:36,223 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 21:12:36,233 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 21:12:36,252 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 21:12:36,291 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 21:12:36,292 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 21:12:36,293 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 21:12:36,293 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 21:12:36,293 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 21:12:36,293 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 21:12:36,293 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 21:12:36,293 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 21:12:36,322 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-10-24 21:12:36,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-10-24 21:12:36,333 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:12:36,334 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] [2018-10-24 21:12:36,337 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:12:36,343 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:12:36,343 INFO L82 PathProgramCache]: Analyzing trace with hash 296004705, now seen corresponding path program 1 times [2018-10-24 21:12:36,346 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:12:36,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:12:36,405 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:12:36,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:12:36,406 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:12:36,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:12:36,885 WARN L179 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 21:12:37,009 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 21:12:37,011 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:12:37,011 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 21:12:37,012 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:12:37,018 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 21:12:37,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 21:12:37,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 21:12:37,036 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 3 states. [2018-10-24 21:12:39,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:12:39,124 INFO L93 Difference]: Finished difference Result 782 states and 1372 transitions. [2018-10-24 21:12:39,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 21:12:39,127 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2018-10-24 21:12:39,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:12:39,148 INFO L225 Difference]: With dead ends: 782 [2018-10-24 21:12:39,148 INFO L226 Difference]: Without dead ends: 487 [2018-10-24 21:12:39,157 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 21:12:39,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2018-10-24 21:12:39,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 482. [2018-10-24 21:12:39,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2018-10-24 21:12:39,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 837 transitions. [2018-10-24 21:12:39,239 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 837 transitions. Word has length 67 [2018-10-24 21:12:39,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:12:39,240 INFO L481 AbstractCegarLoop]: Abstraction has 482 states and 837 transitions. [2018-10-24 21:12:39,240 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 21:12:39,240 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 837 transitions. [2018-10-24 21:12:39,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-10-24 21:12:39,249 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:12:39,250 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:12:39,250 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:12:39,251 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:12:39,251 INFO L82 PathProgramCache]: Analyzing trace with hash -1433084721, now seen corresponding path program 1 times [2018-10-24 21:12:39,251 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:12:39,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:12:39,253 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:12:39,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:12:39,253 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:12:39,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:12:39,596 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:12:39,597 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:12:39,597 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 21:12:39,597 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:12:39,600 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 21:12:39,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 21:12:39,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-24 21:12:39,601 INFO L87 Difference]: Start difference. First operand 482 states and 837 transitions. Second operand 6 states. [2018-10-24 21:12:45,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:12:45,312 INFO L93 Difference]: Finished difference Result 1804 states and 3389 transitions. [2018-10-24 21:12:45,313 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-24 21:12:45,313 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 138 [2018-10-24 21:12:45,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:12:45,328 INFO L225 Difference]: With dead ends: 1804 [2018-10-24 21:12:45,328 INFO L226 Difference]: Without dead ends: 1328 [2018-10-24 21:12:45,339 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-24 21:12:45,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1328 states. [2018-10-24 21:12:45,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1328 to 1286. [2018-10-24 21:12:45,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1286 states. [2018-10-24 21:12:45,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 1955 transitions. [2018-10-24 21:12:45,429 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 1955 transitions. Word has length 138 [2018-10-24 21:12:45,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:12:45,430 INFO L481 AbstractCegarLoop]: Abstraction has 1286 states and 1955 transitions. [2018-10-24 21:12:45,430 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 21:12:45,430 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 1955 transitions. [2018-10-24 21:12:45,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-10-24 21:12:45,437 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:12:45,438 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, 1, 1, 1, 1, 1, 1, 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 21:12:45,438 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:12:45,438 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:12:45,438 INFO L82 PathProgramCache]: Analyzing trace with hash 1675544195, now seen corresponding path program 1 times [2018-10-24 21:12:45,438 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:12:45,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:12:45,440 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:12:45,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:12:45,440 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:12:45,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:12:45,835 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:12:45,835 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:12:45,836 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 21:12:45,836 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:12:45,836 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 21:12:45,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 21:12:45,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-24 21:12:45,837 INFO L87 Difference]: Start difference. First operand 1286 states and 1955 transitions. Second operand 6 states. [2018-10-24 21:12:49,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:12:49,848 INFO L93 Difference]: Finished difference Result 4497 states and 7274 transitions. [2018-10-24 21:12:49,855 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:12:49,855 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 148 [2018-10-24 21:12:49,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:12:49,883 INFO L225 Difference]: With dead ends: 4497 [2018-10-24 21:12:49,884 INFO L226 Difference]: Without dead ends: 3217 [2018-10-24 21:12:49,901 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-24 21:12:49,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3217 states. [2018-10-24 21:12:50,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3217 to 3178. [2018-10-24 21:12:50,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3178 states. [2018-10-24 21:12:50,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3178 states to 3178 states and 4547 transitions. [2018-10-24 21:12:50,025 INFO L78 Accepts]: Start accepts. Automaton has 3178 states and 4547 transitions. Word has length 148 [2018-10-24 21:12:50,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:12:50,026 INFO L481 AbstractCegarLoop]: Abstraction has 3178 states and 4547 transitions. [2018-10-24 21:12:50,026 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 21:12:50,026 INFO L276 IsEmpty]: Start isEmpty. Operand 3178 states and 4547 transitions. [2018-10-24 21:12:50,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2018-10-24 21:12:50,034 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:12:50,035 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:12:50,035 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:12:50,035 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:12:50,036 INFO L82 PathProgramCache]: Analyzing trace with hash 1977764724, now seen corresponding path program 1 times [2018-10-24 21:12:50,036 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:12:50,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:12:50,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:12:50,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:12:50,037 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:12:50,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:12:50,409 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 189 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:12:50,410 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:12:50,410 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:12:50,411 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 213 with the following transitions: [2018-10-24 21:12:50,413 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [437], [439], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [510], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-24 21:12:50,488 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:12:50,488 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:12:52,303 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 21:12:52,885 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:12:52,887 INFO L272 AbstractInterpreter]: Visited 79 different actions 79 times. Never merged. Never widened. Never found a fixpoint. Largest state had 28 variables. [2018-10-24 21:12:52,898 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:12:52,898 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:12:55,732 INFO L232 lantSequenceWeakener]: Weakened 204 states. On average, predicates are now at 73.99% of their original sizes. [2018-10-24 21:12:55,733 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 21:12:56,193 INFO L413 sIntCurrentIteration]: We have 211 unified AI predicates [2018-10-24 21:12:56,193 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 21:12:56,194 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 21:12:56,195 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-10-24 21:12:56,195 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:12:56,196 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 21:12:56,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 21:12:56,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 21:12:56,197 INFO L87 Difference]: Start difference. First operand 3178 states and 4547 transitions. Second operand 7 states. [2018-10-24 21:13:19,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:13:19,950 INFO L93 Difference]: Finished difference Result 6542 states and 9305 transitions. [2018-10-24 21:13:19,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:13:19,950 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 212 [2018-10-24 21:13:19,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:13:19,972 INFO L225 Difference]: With dead ends: 6542 [2018-10-24 21:13:19,972 INFO L226 Difference]: Without dead ends: 3370 [2018-10-24 21:13:19,987 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 212 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-24 21:13:19,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3370 states. [2018-10-24 21:13:20,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3370 to 3368. [2018-10-24 21:13:20,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3368 states. [2018-10-24 21:13:20,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3368 states to 3368 states and 4746 transitions. [2018-10-24 21:13:20,091 INFO L78 Accepts]: Start accepts. Automaton has 3368 states and 4746 transitions. Word has length 212 [2018-10-24 21:13:20,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:13:20,091 INFO L481 AbstractCegarLoop]: Abstraction has 3368 states and 4746 transitions. [2018-10-24 21:13:20,092 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 21:13:20,092 INFO L276 IsEmpty]: Start isEmpty. Operand 3368 states and 4746 transitions. [2018-10-24 21:13:20,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2018-10-24 21:13:20,100 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:13:20,100 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:13:20,100 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:13:20,101 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:13:20,101 INFO L82 PathProgramCache]: Analyzing trace with hash -1735669, now seen corresponding path program 1 times [2018-10-24 21:13:20,101 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:13:20,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:13:20,102 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:13:20,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:13:20,102 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:13:20,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:13:20,511 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-10-24 21:13:20,512 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:13:20,512 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 21:13:20,512 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:13:20,513 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 21:13:20,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 21:13:20,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:13:20,514 INFO L87 Difference]: Start difference. First operand 3368 states and 4746 transitions. Second operand 4 states. [2018-10-24 21:13:24,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:13:24,041 INFO L93 Difference]: Finished difference Result 9942 states and 15455 transitions. [2018-10-24 21:13:24,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 21:13:24,042 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 265 [2018-10-24 21:13:24,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:13:24,085 INFO L225 Difference]: With dead ends: 9942 [2018-10-24 21:13:24,086 INFO L226 Difference]: Without dead ends: 6770 [2018-10-24 21:13:24,118 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:13:24,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6770 states. [2018-10-24 21:13:24,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6770 to 6759. [2018-10-24 21:13:24,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6759 states. [2018-10-24 21:13:24,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6759 states to 6759 states and 9952 transitions. [2018-10-24 21:13:24,323 INFO L78 Accepts]: Start accepts. Automaton has 6759 states and 9952 transitions. Word has length 265 [2018-10-24 21:13:24,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:13:24,324 INFO L481 AbstractCegarLoop]: Abstraction has 6759 states and 9952 transitions. [2018-10-24 21:13:24,324 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 21:13:24,325 INFO L276 IsEmpty]: Start isEmpty. Operand 6759 states and 9952 transitions. [2018-10-24 21:13:24,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2018-10-24 21:13:24,346 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:13:24,347 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2018-10-24 21:13:24,347 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:13:24,347 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:13:24,348 INFO L82 PathProgramCache]: Analyzing trace with hash 902442976, now seen corresponding path program 1 times [2018-10-24 21:13:24,348 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:13:24,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:13:24,349 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:13:24,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:13:24,349 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:13:24,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:13:25,072 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 123 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2018-10-24 21:13:25,073 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:13:25,073 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:13:25,073 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 297 with the following transitions: [2018-10-24 21:13:25,074 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [437], [439], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [629], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [750], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-24 21:13:25,086 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:13:25,086 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:13:28,779 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 21:14:09,537 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-24 21:14:09,537 INFO L272 AbstractInterpreter]: Visited 136 different actions 797 times. Merged at 7 different actions 38 times. Widened at 1 different actions 1 times. Found 6 fixpoints after 2 different actions. Largest state had 28 variables. [2018-10-24 21:14:09,545 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:14:09,546 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-24 21:14:09,546 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:14:09,546 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 21:14:09,558 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:14:09,558 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 21:14:09,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:14:09,683 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 21:14:14,673 WARN L179 SmtUtils]: Spent 2.55 s on a formula simplification. DAG size of input: 478 DAG size of output: 22 [2018-10-24 21:14:14,889 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 123 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2018-10-24 21:14:14,890 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-24 21:14:15,163 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2018-10-24 21:14:15,364 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2018-10-24 21:14:15,386 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-10-24 21:14:15,387 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 6] total 9 [2018-10-24 21:14:15,387 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:14:15,387 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 21:14:15,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 21:14:15,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=46, Unknown=1, NotChecked=0, Total=72 [2018-10-24 21:14:15,388 INFO L87 Difference]: Start difference. First operand 6759 states and 9952 transitions. Second operand 3 states. [2018-10-24 21:14:17,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:14:17,725 INFO L93 Difference]: Finished difference Result 15261 states and 24454 transitions. [2018-10-24 21:14:17,728 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 21:14:17,728 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 296 [2018-10-24 21:14:17,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:14:17,789 INFO L225 Difference]: With dead ends: 15261 [2018-10-24 21:14:17,790 INFO L226 Difference]: Without dead ends: 8698 [2018-10-24 21:14:17,888 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 602 GetRequests, 591 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=25, Invalid=46, Unknown=1, NotChecked=0, Total=72 [2018-10-24 21:14:17,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8698 states. [2018-10-24 21:14:18,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8698 to 8690. [2018-10-24 21:14:18,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8690 states. [2018-10-24 21:14:18,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8690 states to 8690 states and 12637 transitions. [2018-10-24 21:14:18,182 INFO L78 Accepts]: Start accepts. Automaton has 8690 states and 12637 transitions. Word has length 296 [2018-10-24 21:14:18,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:14:18,183 INFO L481 AbstractCegarLoop]: Abstraction has 8690 states and 12637 transitions. [2018-10-24 21:14:18,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 21:14:18,183 INFO L276 IsEmpty]: Start isEmpty. Operand 8690 states and 12637 transitions. [2018-10-24 21:14:18,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2018-10-24 21:14:18,240 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:14:18,240 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 21:14:18,241 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:14:18,241 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:14:18,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1528647053, now seen corresponding path program 1 times [2018-10-24 21:14:18,241 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:14:18,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:14:18,242 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:14:18,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:14:18,243 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:14:18,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:14:18,891 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 363 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-10-24 21:14:18,892 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:14:18,892 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:14:18,892 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 367 with the following transitions: [2018-10-24 21:14:18,893 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [437], [439], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [510], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [653], [654], [658], [662], [666], [677], [688], [692], [696], [707], [710], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-24 21:14:18,898 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:14:18,899 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:14:21,257 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 21:14:34,703 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:14:34,704 INFO L272 AbstractInterpreter]: Visited 126 different actions 365 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-10-24 21:14:34,709 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:14:34,709 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:14:41,168 INFO L232 lantSequenceWeakener]: Weakened 149 states. On average, predicates are now at 74.66% of their original sizes. [2018-10-24 21:14:41,168 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 21:15:37,425 INFO L413 sIntCurrentIteration]: We have 365 unified AI predicates [2018-10-24 21:15:37,426 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 21:15:37,426 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 21:15:37,426 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [6] total 21 [2018-10-24 21:15:37,426 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:15:37,428 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-10-24 21:15:37,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-10-24 21:15:37,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2018-10-24 21:15:37,428 INFO L87 Difference]: Start difference. First operand 8690 states and 12637 transitions. Second operand 17 states. Received shutdown request... [2018-10-24 21:16:27,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-24 21:16:27,831 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 21:16:27,837 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 21:16:27,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:16:27 BoogieIcfgContainer [2018-10-24 21:16:27,837 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 21:16:27,838 INFO L168 Benchmark]: Toolchain (without parser) took 237722.41 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -493.6 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-10-24 21:16:27,839 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 21:16:27,840 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1062.87 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: 55.5 MB). Peak memory consumption was 55.5 MB. Max. memory is 7.1 GB. [2018-10-24 21:16:27,841 INFO L168 Benchmark]: Boogie Procedure Inliner took 270.20 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 731.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -815.3 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2018-10-24 21:16:27,841 INFO L168 Benchmark]: Boogie Preprocessor took 143.15 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 21:16:27,842 INFO L168 Benchmark]: RCFGBuilder took 4606.64 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 188.3 MB). Peak memory consumption was 188.3 MB. Max. memory is 7.1 GB. [2018-10-24 21:16:27,843 INFO L168 Benchmark]: TraceAbstraction took 231632.86 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 1.9 GB in the end (delta: 77.8 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-10-24 21:16:27,847 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 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1062.87 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: 55.5 MB). Peak memory consumption was 55.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 270.20 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 731.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -815.3 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 143.15 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 4606.64 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 188.3 MB). Peak memory consumption was 188.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 231632.86 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 1.9 GB in the end (delta: 77.8 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 186]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 186). Cancelled while BasicCegarLoop was constructing difference of abstraction (8690states) and FLOYD_HOARE automaton (currently 9 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (98 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 231.5s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 92.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1127 SDtfs, 4191 SDslu, 698 SDs, 0 SdLazy, 6472 SolverSat, 1532 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 41.5s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 1213 GetRequests, 1111 SyntacticMatches, 53 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 63.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8690occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 62.7s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.9961213073192243 AbsIntWeakeningRatio, 0.1076388888888889 AbsIntAvgWeakeningVarsNumRemoved, 557.2465277777778 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 6 MinimizatonAttempts, 107 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 8.3s InterpolantComputationTime, 1788 NumberOfCodeBlocks, 1788 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 2075 ConstructedInterpolants, 2 QuantifiedInterpolants, 1455409 SizeOfPredicates, 3 NumberOfNonLiveVariables, 502 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 1364/1614 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown