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_label05_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 19:10:31,288 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 19:10:31,290 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 19:10:31,302 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 19:10:31,303 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 19:10:31,304 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 19:10:31,305 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 19:10:31,308 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 19:10:31,310 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 19:10:31,310 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 19:10:31,311 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 19:10:31,312 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 19:10:31,313 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 19:10:31,314 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 19:10:31,315 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 19:10:31,316 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 19:10:31,317 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 19:10:31,319 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 19:10:31,321 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 19:10:31,323 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 19:10:31,324 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 19:10:31,326 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 19:10:31,328 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 19:10:31,338 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 19:10:31,355 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 19:10:31,356 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 19:10:31,357 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 19:10:31,357 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 19:10:31,357 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 19:10:31,358 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 19:10:31,358 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 19:10:31,358 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 19:10:31,358 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 19:10:31,359 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 19:10:31,359 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 19:10:31,359 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 19:10:31,360 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 19:10:31,360 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 19:10:31,361 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 19:10:31,361 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 19:10:31,361 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 19:10:31,362 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 19:10:31,362 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 19:10:31,362 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 19:10:31,363 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 19:10:31,363 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 19:10:31,363 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 19:10:31,363 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 19:10:31,364 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 19:10:31,364 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 19:10:31,364 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 19:10:31,365 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 19:10:31,365 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 19:10:31,365 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 19:10:31,365 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 19:10:31,366 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 19:10:31,366 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 19:10:31,366 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 19:10:31,432 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 19:10:31,451 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 19:10:31,455 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 19:10:31,457 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 19:10:31,457 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 19:10:31,458 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label05_true-unreach-call_false-termination.c [2018-10-24 19:10:31,526 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/37a69bb45/76845aa0f8604468bf766e5a22321e57/FLAG48620fe6b [2018-10-24 19:10:32,106 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 19:10:32,107 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label05_true-unreach-call_false-termination.c [2018-10-24 19:10:32,137 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/37a69bb45/76845aa0f8604468bf766e5a22321e57/FLAG48620fe6b [2018-10-24 19:10:32,157 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/37a69bb45/76845aa0f8604468bf766e5a22321e57 [2018-10-24 19:10:32,169 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 19:10:32,171 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 19:10:32,172 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 19:10:32,173 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 19:10:32,179 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 19:10:32,180 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:10:32" (1/1) ... [2018-10-24 19:10:32,184 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ae6b03e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:10:32, skipping insertion in model container [2018-10-24 19:10:32,184 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:10:32" (1/1) ... [2018-10-24 19:10:32,196 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 19:10:32,273 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 19:10:32,772 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 19:10:32,783 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 19:10:32,939 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 19:10:32,965 INFO L193 MainTranslator]: Completed translation [2018-10-24 19:10:32,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:10:32 WrapperNode [2018-10-24 19:10:32,965 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 19:10:32,967 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 19:10:32,967 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 19:10:32,967 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 19:10:32,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:10:32" (1/1) ... [2018-10-24 19:10:33,017 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:10:32" (1/1) ... [2018-10-24 19:10:33,192 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 19:10:33,193 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 19:10:33,193 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 19:10:33,193 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 19:10:33,204 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:10:32" (1/1) ... [2018-10-24 19:10:33,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:10:32" (1/1) ... [2018-10-24 19:10:33,216 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:10:32" (1/1) ... [2018-10-24 19:10:33,219 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:10:32" (1/1) ... [2018-10-24 19:10:33,253 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:10:32" (1/1) ... [2018-10-24 19:10:33,268 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:10:32" (1/1) ... [2018-10-24 19:10:33,273 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:10:32" (1/1) ... [2018-10-24 19:10:33,286 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 19:10:33,287 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 19:10:33,287 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 19:10:33,287 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 19:10:33,288 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:10:32" (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 19:10:33,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 19:10:33,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 19:10:33,347 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 19:10:33,347 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 19:10:33,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 19:10:33,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 19:10:33,347 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 19:10:33,347 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 19:10:36,471 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 19:10:36,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:10:36 BoogieIcfgContainer [2018-10-24 19:10:36,472 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 19:10:36,473 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 19:10:36,473 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 19:10:36,477 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 19:10:36,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:10:32" (1/3) ... [2018-10-24 19:10:36,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18fe8932 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:10:36, skipping insertion in model container [2018-10-24 19:10:36,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:10:32" (2/3) ... [2018-10-24 19:10:36,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18fe8932 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:10:36, skipping insertion in model container [2018-10-24 19:10:36,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:10:36" (3/3) ... [2018-10-24 19:10:36,480 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label05_true-unreach-call_false-termination.c [2018-10-24 19:10:36,490 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 19:10:36,498 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 19:10:36,515 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 19:10:36,556 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 19:10:36,557 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 19:10:36,557 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 19:10:36,557 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 19:10:36,557 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 19:10:36,558 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 19:10:36,558 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 19:10:36,558 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 19:10:36,583 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states. [2018-10-24 19:10:36,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-10-24 19:10:36,596 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:10:36,597 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] [2018-10-24 19:10:36,600 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:10:36,606 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:10:36,606 INFO L82 PathProgramCache]: Analyzing trace with hash -200516955, now seen corresponding path program 1 times [2018-10-24 19:10:36,609 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:10:36,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:10:36,662 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:10:36,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:10:36,663 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:10:36,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:10:37,249 WARN L179 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 19:10:37,416 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 19:10:37,419 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:10:37,420 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 19:10:37,421 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:10:37,430 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 19:10:37,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 19:10:37,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 19:10:37,450 INFO L87 Difference]: Start difference. First operand 208 states. Second operand 3 states. [2018-10-24 19:10:39,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:10:39,260 INFO L93 Difference]: Finished difference Result 550 states and 941 transitions. [2018-10-24 19:10:39,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 19:10:39,266 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 101 [2018-10-24 19:10:39,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:10:39,286 INFO L225 Difference]: With dead ends: 550 [2018-10-24 19:10:39,286 INFO L226 Difference]: Without dead ends: 340 [2018-10-24 19:10:39,293 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 19:10:39,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2018-10-24 19:10:39,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2018-10-24 19:10:39,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2018-10-24 19:10:39,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 562 transitions. [2018-10-24 19:10:39,375 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 562 transitions. Word has length 101 [2018-10-24 19:10:39,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:10:39,376 INFO L481 AbstractCegarLoop]: Abstraction has 340 states and 562 transitions. [2018-10-24 19:10:39,376 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 19:10:39,376 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 562 transitions. [2018-10-24 19:10:39,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-10-24 19:10:39,384 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:10:39,384 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] [2018-10-24 19:10:39,385 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:10:39,385 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:10:39,385 INFO L82 PathProgramCache]: Analyzing trace with hash -1760831450, now seen corresponding path program 1 times [2018-10-24 19:10:39,386 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:10:39,387 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:10:39,387 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:10:39,387 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:10:39,388 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:10:39,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:10:39,591 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 19:10:39,592 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:10:39,592 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 19:10:39,592 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:10:39,594 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 19:10:39,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 19:10:39,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 19:10:39,595 INFO L87 Difference]: Start difference. First operand 340 states and 562 transitions. Second operand 6 states. [2018-10-24 19:10:41,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:10:41,465 INFO L93 Difference]: Finished difference Result 888 states and 1491 transitions. [2018-10-24 19:10:41,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 19:10:41,467 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 112 [2018-10-24 19:10:41,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:10:41,474 INFO L225 Difference]: With dead ends: 888 [2018-10-24 19:10:41,474 INFO L226 Difference]: Without dead ends: 554 [2018-10-24 19:10:41,478 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 19:10:41,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2018-10-24 19:10:41,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 539. [2018-10-24 19:10:41,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2018-10-24 19:10:41,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 827 transitions. [2018-10-24 19:10:41,529 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 827 transitions. Word has length 112 [2018-10-24 19:10:41,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:10:41,530 INFO L481 AbstractCegarLoop]: Abstraction has 539 states and 827 transitions. [2018-10-24 19:10:41,531 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 19:10:41,531 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 827 transitions. [2018-10-24 19:10:41,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-10-24 19:10:41,536 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:10:41,536 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] [2018-10-24 19:10:41,536 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:10:41,537 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:10:41,537 INFO L82 PathProgramCache]: Analyzing trace with hash -1036914094, now seen corresponding path program 1 times [2018-10-24 19:10:41,537 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:10:41,538 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:10:41,538 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:10:41,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:10:41,539 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:10:41,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:10:41,762 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 19:10:41,763 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:10:41,763 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 19:10:41,763 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:10:41,765 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 19:10:41,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 19:10:41,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 19:10:41,769 INFO L87 Difference]: Start difference. First operand 539 states and 827 transitions. Second operand 3 states. [2018-10-24 19:10:42,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:10:42,939 INFO L93 Difference]: Finished difference Result 1530 states and 2432 transitions. [2018-10-24 19:10:42,942 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 19:10:42,942 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 113 [2018-10-24 19:10:42,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:10:42,951 INFO L225 Difference]: With dead ends: 1530 [2018-10-24 19:10:42,952 INFO L226 Difference]: Without dead ends: 997 [2018-10-24 19:10:42,957 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 19:10:42,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 997 states. [2018-10-24 19:10:43,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 997 to 997. [2018-10-24 19:10:43,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 997 states. [2018-10-24 19:10:43,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1488 transitions. [2018-10-24 19:10:43,021 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1488 transitions. Word has length 113 [2018-10-24 19:10:43,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:10:43,021 INFO L481 AbstractCegarLoop]: Abstraction has 997 states and 1488 transitions. [2018-10-24 19:10:43,022 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 19:10:43,022 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1488 transitions. [2018-10-24 19:10:43,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2018-10-24 19:10:43,026 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:10:43,027 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:10:43,027 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:10:43,027 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:10:43,028 INFO L82 PathProgramCache]: Analyzing trace with hash 790407278, now seen corresponding path program 1 times [2018-10-24 19:10:43,028 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:10:43,029 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:10:43,029 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:10:43,029 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:10:43,029 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:10:43,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:10:43,280 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:10:43,280 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:10:43,280 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 19:10:43,280 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:10:43,281 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 19:10:43,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 19:10:43,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 19:10:43,282 INFO L87 Difference]: Start difference. First operand 997 states and 1488 transitions. Second operand 6 states. [2018-10-24 19:10:46,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:10:46,146 INFO L93 Difference]: Finished difference Result 2927 states and 4616 transitions. [2018-10-24 19:10:46,154 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 19:10:46,154 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 127 [2018-10-24 19:10:46,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:10:46,170 INFO L225 Difference]: With dead ends: 2927 [2018-10-24 19:10:46,171 INFO L226 Difference]: Without dead ends: 1936 [2018-10-24 19:10:46,177 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 19:10:46,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1936 states. [2018-10-24 19:10:46,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1936 to 1881. [2018-10-24 19:10:46,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1881 states. [2018-10-24 19:10:46,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1881 states to 1881 states and 2656 transitions. [2018-10-24 19:10:46,263 INFO L78 Accepts]: Start accepts. Automaton has 1881 states and 2656 transitions. Word has length 127 [2018-10-24 19:10:46,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:10:46,264 INFO L481 AbstractCegarLoop]: Abstraction has 1881 states and 2656 transitions. [2018-10-24 19:10:46,265 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 19:10:46,265 INFO L276 IsEmpty]: Start isEmpty. Operand 1881 states and 2656 transitions. [2018-10-24 19:10:46,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-10-24 19:10:46,272 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:10:46,272 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:10:46,272 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:10:46,272 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:10:46,273 INFO L82 PathProgramCache]: Analyzing trace with hash 323635751, now seen corresponding path program 1 times [2018-10-24 19:10:46,273 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:10:46,274 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:10:46,274 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:10:46,274 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:10:46,274 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:10:46,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:10:46,753 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 48 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:10:46,754 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 19:10:46,754 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 19:10:46,755 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 146 with the following transitions: [2018-10-24 19:10:46,757 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [17], [18], [22], [26], [30], [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], [445], [447], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-10-24 19:10:46,829 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 19:10:46,829 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 19:11:17,796 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 19:11:17,798 INFO L272 AbstractInterpreter]: Visited 105 different actions 170 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-10-24 19:11:17,812 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:11:17,812 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 19:11:24,345 INFO L232 lantSequenceWeakener]: Weakened 38 states. On average, predicates are now at 81.45% of their original sizes. [2018-10-24 19:11:24,345 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 19:12:05,943 INFO L413 sIntCurrentIteration]: We have 144 unified AI predicates [2018-10-24 19:12:05,943 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 19:12:05,944 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 19:12:05,944 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [6] total 25 [2018-10-24 19:12:05,944 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:12:05,945 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-10-24 19:12:05,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-10-24 19:12:05,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2018-10-24 19:12:05,946 INFO L87 Difference]: Start difference. First operand 1881 states and 2656 transitions. Second operand 21 states. Received shutdown request... [2018-10-24 19:14:51,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-10-24 19:14:51,040 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 19:14:51,046 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 19:14:51,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 07:14:51 BoogieIcfgContainer [2018-10-24 19:14:51,046 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 19:14:51,047 INFO L168 Benchmark]: Toolchain (without parser) took 258877.01 ms. Allocated memory was 1.5 GB in the beginning and 3.6 GB in the end (delta: 2.1 GB). Free memory was 1.4 GB in the beginning and 2.8 GB in the end (delta: -1.3 GB). Peak memory consumption was 709.9 MB. Max. memory is 7.1 GB. [2018-10-24 19:14:51,049 INFO L168 Benchmark]: CDTParser took 0.19 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 19:14:51,049 INFO L168 Benchmark]: CACSL2BoogieTranslator took 793.49 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-10-24 19:14:51,050 INFO L168 Benchmark]: Boogie Procedure Inliner took 225.87 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 747.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -836.9 MB). Peak memory consumption was 19.1 MB. Max. memory is 7.1 GB. [2018-10-24 19:14:51,051 INFO L168 Benchmark]: Boogie Preprocessor took 93.78 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 19:14:51,052 INFO L168 Benchmark]: RCFGBuilder took 3185.44 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 104.5 MB). Peak memory consumption was 104.5 MB. Max. memory is 7.1 GB. [2018-10-24 19:14:51,053 INFO L168 Benchmark]: TraceAbstraction took 254573.13 ms. Allocated memory was 2.3 GB in the beginning and 3.6 GB in the end (delta: 1.3 GB). Free memory was 2.1 GB in the beginning and 2.8 GB in the end (delta: -656.2 MB). Peak memory consumption was 652.9 MB. Max. memory is 7.1 GB. [2018-10-24 19:14:51,061 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 793.49 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 225.87 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 747.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -836.9 MB). Peak memory consumption was 19.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 93.78 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 3185.44 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 104.5 MB). Peak memory consumption was 104.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 254573.13 ms. Allocated memory was 2.3 GB in the beginning and 3.6 GB in the end (delta: 1.3 GB). Free memory was 2.1 GB in the beginning and 2.8 GB in the end (delta: -656.2 MB). Peak memory consumption was 652.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 458]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 458). Cancelled while BasicCegarLoop was constructing difference of abstraction (1881states) and FLOYD_HOARE automaton (currently 21 states, 21 states before enhancement),while ReachableStatesComputation was computing reachable states (542 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 208 locations, 1 error locations. TIMEOUT Result, 254.5s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 172.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 455 SDtfs, 2059 SDslu, 308 SDs, 0 SdLazy, 3298 SolverSat, 695 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 75.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 186 GetRequests, 134 SyntacticMatches, 4 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 58.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1881occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 31.0s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.993854045683314 AbsIntWeakeningRatio, 0.24305555555555555 AbsIntAvgWeakeningVarsNumRemoved, 771.2013888888889 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 70 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 598 NumberOfCodeBlocks, 598 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 593 ConstructedInterpolants, 0 QuantifiedInterpolants, 169435 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 88/90 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown