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/Problem16_label49_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 22:02:32,363 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 22:02:32,365 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 22:02:32,378 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 22:02:32,378 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 22:02:32,379 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 22:02:32,380 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 22:02:32,382 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 22:02:32,384 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 22:02:32,385 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 22:02:32,386 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 22:02:32,386 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 22:02:32,387 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 22:02:32,388 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 22:02:32,389 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 22:02:32,390 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 22:02:32,391 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 22:02:32,393 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 22:02:32,395 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 22:02:32,397 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 22:02:32,398 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 22:02:32,399 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 22:02:32,404 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 22:02:32,417 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 22:02:32,417 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 22:02:32,419 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 22:02:32,420 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 22:02:32,420 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 22:02:32,448 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 22:02:32,449 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 22:02:32,450 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 22:02:32,450 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 22:02:32,451 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 22:02:32,451 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 22:02:32,451 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 22:02:32,451 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 22:02:32,452 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 22:02:32,452 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 22:02:32,452 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 22:02:32,452 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 22:02:32,453 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 22:02:32,454 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 22:02:32,454 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 22:02:32,454 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 22:02:32,454 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 22:02:32,454 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 22:02:32,455 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 22:02:32,455 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 22:02:32,455 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 22:02:32,455 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 22:02:32,455 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 22:02:32,456 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 22:02:32,457 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 22:02:32,458 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 22:02:32,458 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 22:02:32,458 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 22:02:32,458 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 22:02:32,459 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 22:02:32,459 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 22:02:32,459 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 22:02:32,459 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 22:02:32,459 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 22:02:32,531 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 22:02:32,545 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 22:02:32,551 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 22:02:32,552 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 22:02:32,553 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 22:02:32,554 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label49_true-unreach-call.c [2018-10-24 22:02:32,615 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/0546d33e6/a03c67abd1af482bb1c6adbf359a5d3f/FLAGd4d067e8e [2018-10-24 22:02:33,353 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 22:02:33,354 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label49_true-unreach-call.c [2018-10-24 22:02:33,379 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/0546d33e6/a03c67abd1af482bb1c6adbf359a5d3f/FLAGd4d067e8e [2018-10-24 22:02:33,403 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/0546d33e6/a03c67abd1af482bb1c6adbf359a5d3f [2018-10-24 22:02:33,417 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 22:02:33,419 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 22:02:33,420 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 22:02:33,421 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 22:02:33,427 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 22:02:33,428 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:02:33" (1/1) ... [2018-10-24 22:02:33,432 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@280e7a03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:02:33, skipping insertion in model container [2018-10-24 22:02:33,433 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:02:33" (1/1) ... [2018-10-24 22:02:33,446 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 22:02:33,551 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 22:02:34,401 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 22:02:34,406 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 22:02:34,733 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 22:02:34,756 INFO L193 MainTranslator]: Completed translation [2018-10-24 22:02:34,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:02:34 WrapperNode [2018-10-24 22:02:34,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 22:02:34,758 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 22:02:34,758 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 22:02:34,758 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 22:02:34,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:02:34" (1/1) ... [2018-10-24 22:02:34,813 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:02:34" (1/1) ... [2018-10-24 22:02:35,090 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 22:02:35,091 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 22:02:35,091 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 22:02:35,091 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 22:02:35,103 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:02:34" (1/1) ... [2018-10-24 22:02:35,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:02:34" (1/1) ... [2018-10-24 22:02:35,116 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:02:34" (1/1) ... [2018-10-24 22:02:35,117 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:02:34" (1/1) ... [2018-10-24 22:02:35,185 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:02:34" (1/1) ... [2018-10-24 22:02:35,206 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:02:34" (1/1) ... [2018-10-24 22:02:35,230 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:02:34" (1/1) ... [2018-10-24 22:02:35,263 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 22:02:35,264 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 22:02:35,264 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 22:02:35,264 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 22:02:35,265 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:02:34" (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 22:02:35,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 22:02:35,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 22:02:35,338 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 22:02:35,339 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 22:02:35,339 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 22:02:35,339 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 22:02:35,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 22:02:35,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 22:02:35,340 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 22:02:35,340 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 22:02:42,434 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 22:02:42,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:02:42 BoogieIcfgContainer [2018-10-24 22:02:42,435 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 22:02:42,436 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 22:02:42,436 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 22:02:42,440 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 22:02:42,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:02:33" (1/3) ... [2018-10-24 22:02:42,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2798475f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:02:42, skipping insertion in model container [2018-10-24 22:02:42,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:02:34" (2/3) ... [2018-10-24 22:02:42,442 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2798475f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:02:42, skipping insertion in model container [2018-10-24 22:02:42,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:02:42" (3/3) ... [2018-10-24 22:02:42,444 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label49_true-unreach-call.c [2018-10-24 22:02:42,453 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 22:02:42,461 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 22:02:42,479 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 22:02:42,520 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 22:02:42,520 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 22:02:42,520 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 22:02:42,521 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 22:02:42,521 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 22:02:42,521 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 22:02:42,521 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 22:02:42,521 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 22:02:42,554 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-10-24 22:02:42,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-10-24 22:02:42,565 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:02:42,566 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 22:02:42,568 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:02:42,574 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:02:42,575 INFO L82 PathProgramCache]: Analyzing trace with hash -854858477, now seen corresponding path program 1 times [2018-10-24 22:02:42,578 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:02:42,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:02:42,627 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:02:42,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:02:42,628 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:02:42,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:02:43,117 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-10-24 22:02:43,183 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 22:02:43,185 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:02:43,185 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 22:02:43,186 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:02:43,192 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 22:02:43,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 22:02:43,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 22:02:43,211 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 4 states. [2018-10-24 22:02:50,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:02:50,111 INFO L93 Difference]: Finished difference Result 1513 states and 2838 transitions. [2018-10-24 22:02:50,113 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 22:02:50,115 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 67 [2018-10-24 22:02:50,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:02:50,144 INFO L225 Difference]: With dead ends: 1513 [2018-10-24 22:02:50,144 INFO L226 Difference]: Without dead ends: 1097 [2018-10-24 22:02:50,154 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 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 22:02:50,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2018-10-24 22:02:50,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 744. [2018-10-24 22:02:50,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-10-24 22:02:50,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1301 transitions. [2018-10-24 22:02:50,274 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1301 transitions. Word has length 67 [2018-10-24 22:02:50,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:02:50,275 INFO L481 AbstractCegarLoop]: Abstraction has 744 states and 1301 transitions. [2018-10-24 22:02:50,276 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 22:02:50,276 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1301 transitions. [2018-10-24 22:02:50,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-10-24 22:02:50,291 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:02:50,292 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 22:02:50,292 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:02:50,292 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:02:50,293 INFO L82 PathProgramCache]: Analyzing trace with hash 1317509741, now seen corresponding path program 1 times [2018-10-24 22:02:50,293 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:02:50,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:02:50,294 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:02:50,295 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:02:50,295 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:02:50,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:02:50,744 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 22:02:50,744 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:02:50,744 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 22:02:50,744 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:02:50,747 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 22:02:50,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 22:02:50,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 22:02:50,748 INFO L87 Difference]: Start difference. First operand 744 states and 1301 transitions. Second operand 6 states. [2018-10-24 22:02:55,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:02:55,391 INFO L93 Difference]: Finished difference Result 2196 states and 3924 transitions. [2018-10-24 22:02:55,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 22:02:55,392 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 138 [2018-10-24 22:02:55,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:02:55,406 INFO L225 Difference]: With dead ends: 2196 [2018-10-24 22:02:55,406 INFO L226 Difference]: Without dead ends: 1458 [2018-10-24 22:02:55,410 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 22:02:55,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1458 states. [2018-10-24 22:02:55,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1458 to 1438. [2018-10-24 22:02:55,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1438 states. [2018-10-24 22:02:55,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1438 states to 1438 states and 2463 transitions. [2018-10-24 22:02:55,495 INFO L78 Accepts]: Start accepts. Automaton has 1438 states and 2463 transitions. Word has length 138 [2018-10-24 22:02:55,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:02:55,496 INFO L481 AbstractCegarLoop]: Abstraction has 1438 states and 2463 transitions. [2018-10-24 22:02:55,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 22:02:55,496 INFO L276 IsEmpty]: Start isEmpty. Operand 1438 states and 2463 transitions. [2018-10-24 22:02:55,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2018-10-24 22:02:55,508 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:02:55,508 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] [2018-10-24 22:02:55,509 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:02:55,509 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:02:55,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1542259272, now seen corresponding path program 1 times [2018-10-24 22:02:55,509 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:02:55,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:02:55,510 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:02:55,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:02:55,512 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:02:55,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:02:55,721 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 22:02:55,722 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:02:55,722 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 22:02:55,722 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:02:55,723 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 22:02:55,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 22:02:55,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 22:02:55,724 INFO L87 Difference]: Start difference. First operand 1438 states and 2463 transitions. Second operand 5 states. [2018-10-24 22:03:00,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:03:00,176 INFO L93 Difference]: Finished difference Result 3597 states and 6200 transitions. [2018-10-24 22:03:00,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 22:03:00,180 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 139 [2018-10-24 22:03:00,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:03:00,195 INFO L225 Difference]: With dead ends: 3597 [2018-10-24 22:03:00,195 INFO L226 Difference]: Without dead ends: 2165 [2018-10-24 22:03:00,201 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 22:03:00,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2165 states. [2018-10-24 22:03:00,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2165 to 2145. [2018-10-24 22:03:00,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2145 states. [2018-10-24 22:03:00,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2145 states to 2145 states and 3126 transitions. [2018-10-24 22:03:00,280 INFO L78 Accepts]: Start accepts. Automaton has 2145 states and 3126 transitions. Word has length 139 [2018-10-24 22:03:00,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:03:00,280 INFO L481 AbstractCegarLoop]: Abstraction has 2145 states and 3126 transitions. [2018-10-24 22:03:00,281 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 22:03:00,281 INFO L276 IsEmpty]: Start isEmpty. Operand 2145 states and 3126 transitions. [2018-10-24 22:03:00,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2018-10-24 22:03:00,285 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:03:00,286 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:03:00,286 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:03:00,286 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:03:00,286 INFO L82 PathProgramCache]: Analyzing trace with hash -353980736, now seen corresponding path program 1 times [2018-10-24 22:03:00,287 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:03:00,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:03:00,288 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:03:00,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:03:00,288 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:03:00,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:03:00,743 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 22:03:00,743 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:03:00,743 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 22:03:00,743 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:03:00,744 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 22:03:00,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 22:03:00,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 22:03:00,745 INFO L87 Difference]: Start difference. First operand 2145 states and 3126 transitions. Second operand 6 states. [2018-10-24 22:03:05,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:03:05,192 INFO L93 Difference]: Finished difference Result 7058 states and 10436 transitions. [2018-10-24 22:03:05,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 22:03:05,198 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 231 [2018-10-24 22:03:05,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:03:05,230 INFO L225 Difference]: With dead ends: 7058 [2018-10-24 22:03:05,230 INFO L226 Difference]: Without dead ends: 4919 [2018-10-24 22:03:05,249 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 22:03:05,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4919 states. [2018-10-24 22:03:05,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4919 to 4879. [2018-10-24 22:03:05,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4879 states. [2018-10-24 22:03:05,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4879 states to 4879 states and 6857 transitions. [2018-10-24 22:03:05,411 INFO L78 Accepts]: Start accepts. Automaton has 4879 states and 6857 transitions. Word has length 231 [2018-10-24 22:03:05,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:03:05,412 INFO L481 AbstractCegarLoop]: Abstraction has 4879 states and 6857 transitions. [2018-10-24 22:03:05,412 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 22:03:05,412 INFO L276 IsEmpty]: Start isEmpty. Operand 4879 states and 6857 transitions. [2018-10-24 22:03:05,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2018-10-24 22:03:05,421 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:03:05,422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:03:05,422 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:03:05,422 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:03:05,422 INFO L82 PathProgramCache]: Analyzing trace with hash 1524621864, now seen corresponding path program 1 times [2018-10-24 22:03:05,423 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:03:05,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:03:05,424 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:03:05,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:03:05,424 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:03:05,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:03:05,846 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 22:03:05,846 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:03:05,847 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 22:03:05,847 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:03:05,847 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 22:03:05,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 22:03:05,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 22:03:05,848 INFO L87 Difference]: Start difference. First operand 4879 states and 6857 transitions. Second operand 6 states. [2018-10-24 22:03:10,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:03:10,263 INFO L93 Difference]: Finished difference Result 12216 states and 17406 transitions. [2018-10-24 22:03:10,264 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 22:03:10,264 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 251 [2018-10-24 22:03:10,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:03:10,299 INFO L225 Difference]: With dead ends: 12216 [2018-10-24 22:03:10,300 INFO L226 Difference]: Without dead ends: 7343 [2018-10-24 22:03:10,330 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 22:03:10,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7343 states. [2018-10-24 22:03:10,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7343 to 7306. [2018-10-24 22:03:10,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7306 states. [2018-10-24 22:03:10,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7306 states to 7306 states and 9825 transitions. [2018-10-24 22:03:10,523 INFO L78 Accepts]: Start accepts. Automaton has 7306 states and 9825 transitions. Word has length 251 [2018-10-24 22:03:10,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:03:10,525 INFO L481 AbstractCegarLoop]: Abstraction has 7306 states and 9825 transitions. [2018-10-24 22:03:10,525 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 22:03:10,525 INFO L276 IsEmpty]: Start isEmpty. Operand 7306 states and 9825 transitions. [2018-10-24 22:03:10,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2018-10-24 22:03:10,530 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:03:10,531 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:03:10,531 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:03:10,531 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:03:10,532 INFO L82 PathProgramCache]: Analyzing trace with hash 331280388, now seen corresponding path program 1 times [2018-10-24 22:03:10,532 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:03:10,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:03:10,534 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:03:10,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:03:10,534 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:03:10,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:03:11,192 WARN L179 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-10-24 22:03:11,489 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 179 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 22:03:11,489 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 22:03:11,490 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 22:03:11,490 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 269 with the following transitions: [2018-10-24 22:03:11,493 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [615], [617], [620], [628], [636], [644], [652], [660], [668], [673], [676], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-10-24 22:03:11,569 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 22:03:11,570 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 22:03:15,097 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 22:03:15,098 INFO L272 AbstractInterpreter]: Visited 135 different actions 135 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-24 22:03:15,121 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:03:15,122 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 22:03:17,512 INFO L232 lantSequenceWeakener]: Weakened 260 states. On average, predicates are now at 78.21% of their original sizes. [2018-10-24 22:03:17,512 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 22:03:18,122 INFO L413 sIntCurrentIteration]: We have 267 unified AI predicates [2018-10-24 22:03:18,123 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 22:03:18,124 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 22:03:18,124 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2018-10-24 22:03:18,124 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:03:18,125 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-24 22:03:18,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-24 22:03:18,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-10-24 22:03:18,126 INFO L87 Difference]: Start difference. First operand 7306 states and 9825 transitions. Second operand 8 states. [2018-10-24 22:03:22,123 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 22:04:01,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:04:01,217 INFO L93 Difference]: Finished difference Result 14946 states and 20038 transitions. [2018-10-24 22:04:01,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 22:04:01,217 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 268 [2018-10-24 22:04:01,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:04:01,248 INFO L225 Difference]: With dead ends: 14946 [2018-10-24 22:04:01,248 INFO L226 Difference]: Without dead ends: 7646 [2018-10-24 22:04:01,270 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 269 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-24 22:04:01,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7646 states. [2018-10-24 22:04:01,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7646 to 7644. [2018-10-24 22:04:01,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7644 states. [2018-10-24 22:04:01,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7644 states to 7644 states and 10172 transitions. [2018-10-24 22:04:01,438 INFO L78 Accepts]: Start accepts. Automaton has 7644 states and 10172 transitions. Word has length 268 [2018-10-24 22:04:01,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:04:01,439 INFO L481 AbstractCegarLoop]: Abstraction has 7644 states and 10172 transitions. [2018-10-24 22:04:01,439 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-24 22:04:01,439 INFO L276 IsEmpty]: Start isEmpty. Operand 7644 states and 10172 transitions. [2018-10-24 22:04:01,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2018-10-24 22:04:01,446 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:04:01,447 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:04:01,447 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:04:01,448 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:04:01,448 INFO L82 PathProgramCache]: Analyzing trace with hash -2119334232, now seen corresponding path program 1 times [2018-10-24 22:04:01,448 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:04:01,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:04:01,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:04:01,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:04:01,449 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:04:01,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:04:01,864 WARN L179 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 22:04:02,082 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-24 22:04:02,083 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 22:04:02,083 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 22:04:02,083 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 316 with the following transitions: [2018-10-24 22:04:02,087 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [615], [617], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-10-24 22:04:02,107 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 22:04:02,107 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 22:04:28,174 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 22:04:28,174 INFO L272 AbstractInterpreter]: Visited 255 different actions 752 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 22:04:28,179 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:04:28,180 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 22:04:31,366 INFO L232 lantSequenceWeakener]: Weakened 58 states. On average, predicates are now at 81.96% of their original sizes. [2018-10-24 22:04:31,367 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 22:04:39,756 INFO L413 sIntCurrentIteration]: We have 314 unified AI predicates [2018-10-24 22:04:39,756 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 22:04:39,756 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 22:04:39,757 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [4] total 20 [2018-10-24 22:04:39,757 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:04:39,757 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-10-24 22:04:39,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-10-24 22:04:39,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2018-10-24 22:04:39,758 INFO L87 Difference]: Start difference. First operand 7644 states and 10172 transitions. Second operand 18 states. [2018-10-24 22:05:20,193 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-24 22:06:23,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-24 22:06:23,433 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 22:06:23,438 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 22:06:23,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:06:23 BoogieIcfgContainer [2018-10-24 22:06:23,438 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 22:06:23,439 INFO L168 Benchmark]: Toolchain (without parser) took 230021.12 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 2.2 GB in the end (delta: -792.6 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-10-24 22:06:23,441 INFO L168 Benchmark]: CDTParser took 0.20 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 22:06:23,441 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1336.61 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-10-24 22:06:23,442 INFO L168 Benchmark]: Boogie Procedure Inliner took 332.93 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 748.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -862.3 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. [2018-10-24 22:06:23,443 INFO L168 Benchmark]: Boogie Preprocessor took 172.53 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2018-10-24 22:06:23,444 INFO L168 Benchmark]: RCFGBuilder took 7171.41 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 255.1 MB). Peak memory consumption was 255.1 MB. Max. memory is 7.1 GB. [2018-10-24 22:06:23,445 INFO L168 Benchmark]: TraceAbstraction took 221002.39 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 2.2 GB in the end (delta: -286.4 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-10-24 22:06:23,451 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 1336.61 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 332.93 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 748.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -862.3 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 172.53 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7171.41 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 255.1 MB). Peak memory consumption was 255.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 221002.39 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 2.2 GB in the end (delta: -286.4 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 187]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 187). Cancelled while BasicCegarLoop was constructing difference of abstraction (7644states) and FLOYD_HOARE automaton (currently 10 states, 18 states before enhancement),while ReachableStatesComputation was computing reachable states (355 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 220.9s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 171.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1000 SDtfs, 9200 SDslu, 803 SDs, 0 SdLazy, 12384 SolverSat, 3724 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 74.1s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 634 GetRequests, 571 SyntacticMatches, 4 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 11.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7644occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 29.7s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9966730275137818 AbsIntWeakeningRatio, 0.07917383820998279 AbsIntAvgWeakeningVarsNumRemoved, 481.960413080895 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 6 MinimizatonAttempts, 472 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 1409 NumberOfCodeBlocks, 1409 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1402 ConstructedInterpolants, 0 QuantifiedInterpolants, 1634447 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 423/491 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown