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/Problem17_label18_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-24 02:02:44,347 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 02:02:44,349 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 02:02:44,366 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 02:02:44,367 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 02:02:44,369 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 02:02:44,370 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 02:02:44,373 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 02:02:44,375 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 02:02:44,377 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 02:02:44,380 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 02:02:44,380 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 02:02:44,381 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 02:02:44,382 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 02:02:44,386 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 02:02:44,386 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 02:02:44,387 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 02:02:44,390 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 02:02:44,398 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 02:02:44,403 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 02:02:44,406 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 02:02:44,408 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 02:02:44,411 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 02:02:44,422 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 02:02:44,423 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 02:02:44,424 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 02:02:44,425 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 02:02:44,425 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 02:02:44,454 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 02:02:44,454 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 02:02:44,455 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 02:02:44,455 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 02:02:44,455 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 02:02:44,456 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 02:02:44,457 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 02:02:44,458 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 02:02:44,458 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 02:02:44,458 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 02:02:44,458 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 02:02:44,458 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 02:02:44,461 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 02:02:44,462 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 02:02:44,462 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 02:02:44,463 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 02:02:44,463 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 02:02:44,463 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 02:02:44,463 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 02:02:44,463 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 02:02:44,464 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 02:02:44,464 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 02:02:44,464 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 02:02:44,465 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 02:02:44,465 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 02:02:44,465 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 02:02:44,465 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 02:02:44,465 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 02:02:44,465 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 02:02:44,466 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 02:02:44,466 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 02:02:44,466 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 02:02:44,466 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 02:02:44,466 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 02:02:44,513 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 02:02:44,528 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 02:02:44,535 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 02:02:44,536 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 02:02:44,537 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 02:02:44,537 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label18_true-unreach-call.c [2018-10-24 02:02:44,602 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d0a9e0983/603dda00110d456faf00e99af87b7348/FLAGd617caa17 [2018-10-24 02:02:45,387 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 02:02:45,388 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label18_true-unreach-call.c [2018-10-24 02:02:45,417 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d0a9e0983/603dda00110d456faf00e99af87b7348/FLAGd617caa17 [2018-10-24 02:02:45,441 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d0a9e0983/603dda00110d456faf00e99af87b7348 [2018-10-24 02:02:45,456 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 02:02:45,459 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 02:02:45,460 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 02:02:45,461 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 02:02:45,467 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 02:02:45,468 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:02:45" (1/1) ... [2018-10-24 02:02:45,472 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e66237e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:02:45, skipping insertion in model container [2018-10-24 02:02:45,472 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:02:45" (1/1) ... [2018-10-24 02:02:45,482 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 02:02:45,624 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 02:02:46,691 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 02:02:46,696 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 02:02:47,058 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 02:02:47,082 INFO L193 MainTranslator]: Completed translation [2018-10-24 02:02:47,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:02:47 WrapperNode [2018-10-24 02:02:47,083 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 02:02:47,084 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 02:02:47,084 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 02:02:47,084 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 02:02:47,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:02:47" (1/1) ... [2018-10-24 02:02:47,154 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:02:47" (1/1) ... [2018-10-24 02:02:47,547 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 02:02:47,548 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 02:02:47,548 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 02:02:47,548 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 02:02:47,558 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:02:47" (1/1) ... [2018-10-24 02:02:47,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:02:47" (1/1) ... [2018-10-24 02:02:47,573 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:02:47" (1/1) ... [2018-10-24 02:02:47,573 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:02:47" (1/1) ... [2018-10-24 02:02:47,676 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:02:47" (1/1) ... [2018-10-24 02:02:47,697 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:02:47" (1/1) ... [2018-10-24 02:02:47,734 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:02:47" (1/1) ... [2018-10-24 02:02:47,762 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 02:02:47,763 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 02:02:47,763 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 02:02:47,763 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 02:02:47,764 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:02:47" (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 02:02:47,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 02:02:47,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 02:02:47,834 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 02:02:47,834 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 02:02:47,834 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 02:02:47,834 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 02:02:47,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 02:02:47,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 02:02:47,835 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 02:02:47,835 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 02:02:59,392 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 02:02:59,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:02:59 BoogieIcfgContainer [2018-10-24 02:02:59,393 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 02:02:59,394 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 02:02:59,394 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 02:02:59,398 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 02:02:59,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:02:45" (1/3) ... [2018-10-24 02:02:59,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@685f7d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:02:59, skipping insertion in model container [2018-10-24 02:02:59,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:02:47" (2/3) ... [2018-10-24 02:02:59,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@685f7d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:02:59, skipping insertion in model container [2018-10-24 02:02:59,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:02:59" (3/3) ... [2018-10-24 02:02:59,402 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label18_true-unreach-call.c [2018-10-24 02:02:59,411 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 02:02:59,420 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 02:02:59,441 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 02:02:59,495 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 02:02:59,495 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 02:02:59,495 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 02:02:59,495 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 02:02:59,496 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 02:02:59,496 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 02:02:59,496 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 02:02:59,496 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 02:02:59,537 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-10-24 02:02:59,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-10-24 02:02:59,548 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:02:59,549 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] [2018-10-24 02:02:59,552 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:02:59,558 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:02:59,559 INFO L82 PathProgramCache]: Analyzing trace with hash -2094085436, now seen corresponding path program 1 times [2018-10-24 02:02:59,562 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:02:59,623 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:02:59,623 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:02:59,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:02:59,624 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:02:59,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:03:00,103 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-10-24 02:03:00,136 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 02:03:00,139 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 02:03:00,139 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 02:03:00,140 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:03:00,149 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 02:03:00,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 02:03:00,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 02:03:00,170 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-10-24 02:03:11,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:03:11,702 INFO L93 Difference]: Finished difference Result 2142 states and 3971 transitions. [2018-10-24 02:03:11,702 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 02:03:11,704 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 62 [2018-10-24 02:03:11,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:03:11,741 INFO L225 Difference]: With dead ends: 2142 [2018-10-24 02:03:11,741 INFO L226 Difference]: Without dead ends: 1532 [2018-10-24 02:03:11,754 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 02:03:11,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1532 states. [2018-10-24 02:03:11,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1532 to 1519. [2018-10-24 02:03:11,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1519 states. [2018-10-24 02:03:11,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 2456 transitions. [2018-10-24 02:03:11,969 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 2456 transitions. Word has length 62 [2018-10-24 02:03:11,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:03:11,970 INFO L481 AbstractCegarLoop]: Abstraction has 1519 states and 2456 transitions. [2018-10-24 02:03:11,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 02:03:11,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 2456 transitions. [2018-10-24 02:03:11,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-10-24 02:03:11,987 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:03:11,987 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, 1, 1, 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 02:03:11,988 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:03:11,988 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:03:11,988 INFO L82 PathProgramCache]: Analyzing trace with hash -858039278, now seen corresponding path program 1 times [2018-10-24 02:03:11,988 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:03:11,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:03:11,992 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:03:11,992 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:03:11,992 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:03:12,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:03:12,332 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 02:03:12,333 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 02:03:12,333 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 02:03:12,333 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:03:12,335 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 02:03:12,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 02:03:12,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 02:03:12,336 INFO L87 Difference]: Start difference. First operand 1519 states and 2456 transitions. Second operand 5 states. [2018-10-24 02:03:22,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:03:22,626 INFO L93 Difference]: Finished difference Result 4424 states and 7338 transitions. [2018-10-24 02:03:22,627 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 02:03:22,627 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 134 [2018-10-24 02:03:22,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:03:22,657 INFO L225 Difference]: With dead ends: 4424 [2018-10-24 02:03:22,657 INFO L226 Difference]: Without dead ends: 2911 [2018-10-24 02:03:22,665 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 02:03:22,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2911 states. [2018-10-24 02:03:22,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2911 to 2875. [2018-10-24 02:03:22,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2875 states. [2018-10-24 02:03:22,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2875 states to 2875 states and 4373 transitions. [2018-10-24 02:03:22,767 INFO L78 Accepts]: Start accepts. Automaton has 2875 states and 4373 transitions. Word has length 134 [2018-10-24 02:03:22,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:03:22,768 INFO L481 AbstractCegarLoop]: Abstraction has 2875 states and 4373 transitions. [2018-10-24 02:03:22,768 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 02:03:22,768 INFO L276 IsEmpty]: Start isEmpty. Operand 2875 states and 4373 transitions. [2018-10-24 02:03:22,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-10-24 02:03:22,772 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:03:22,773 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, 1, 1, 1, 1, 1, 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 02:03:22,773 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:03:22,773 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:03:22,774 INFO L82 PathProgramCache]: Analyzing trace with hash -1330082406, now seen corresponding path program 1 times [2018-10-24 02:03:22,774 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:03:22,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:03:22,775 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:03:22,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:03:22,775 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:03:22,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:03:23,071 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 02:03:23,072 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 02:03:23,072 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 02:03:23,073 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 138 with the following transitions: [2018-10-24 02:03:23,076 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1046], [1054], [1062], [1070], [1078], [1086], [1094], [1102], [1106], [1108], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-24 02:03:23,169 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 02:03:23,170 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 02:03:24,658 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 02:03:45,086 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 02:03:45,088 INFO L272 AbstractInterpreter]: Visited 82 different actions 538 times. Merged at 5 different actions 30 times. Widened at 1 different actions 2 times. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-10-24 02:03:45,126 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:03:45,126 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 02:03:47,775 INFO L232 lantSequenceWeakener]: Weakened 2 states. On average, predicates are now at 89.58% of their original sizes. [2018-10-24 02:03:47,775 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 02:04:45,945 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 02:04:45,946 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 02:04:45,947 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [7] total 26 [2018-10-24 02:04:45,947 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:04:45,947 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-10-24 02:04:45,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-10-24 02:04:45,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2018-10-24 02:04:45,948 INFO L87 Difference]: Start difference. First operand 2875 states and 4373 transitions. Second operand 21 states. Received shutdown request... [2018-10-24 02:06:42,333 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-10-24 02:06:42,333 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 02:06:42,338 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 02:06:42,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:06:42 BoogieIcfgContainer [2018-10-24 02:06:42,339 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 02:06:42,339 INFO L168 Benchmark]: Toolchain (without parser) took 236882.39 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 3.3 GB in the end (delta: -1.9 GB). Peak memory consumption was 798.9 MB. Max. memory is 7.1 GB. [2018-10-24 02:06:42,341 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 02:06:42,341 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1622.81 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: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. [2018-10-24 02:06:42,342 INFO L168 Benchmark]: Boogie Procedure Inliner took 464.11 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 775.4 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -929.8 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. [2018-10-24 02:06:42,343 INFO L168 Benchmark]: Boogie Preprocessor took 214.44 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: 41.4 MB). Peak memory consumption was 41.4 MB. Max. memory is 7.1 GB. [2018-10-24 02:06:42,344 INFO L168 Benchmark]: RCFGBuilder took 11630.57 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 451.3 MB). Peak memory consumption was 451.3 MB. Max. memory is 7.1 GB. [2018-10-24 02:06:42,345 INFO L168 Benchmark]: TraceAbstraction took 222944.42 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 3.3 GB in the end (delta: -1.6 GB). Peak memory consumption was 323.1 MB. Max. memory is 7.1 GB. [2018-10-24 02:06:42,350 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 1622.81 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: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 464.11 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 775.4 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -929.8 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 214.44 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: 41.4 MB). Peak memory consumption was 41.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11630.57 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 451.3 MB). Peak memory consumption was 451.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 222944.42 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 3.3 GB in the end (delta: -1.6 GB). Peak memory consumption was 323.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 173]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 173). Cancelled while BasicCegarLoop was constructing difference of abstraction (2875states) and FLOYD_HOARE automaton (currently 18 states, 21 states before enhancement),while ReachableStatesComputation was computing reachable states (481 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 222.8s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 138.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 766 SDtfs, 3976 SDslu, 560 SDs, 0 SdLazy, 6100 SolverSat, 1592 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 60.2s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 164 GetRequests, 91 SyntacticMatches, 33 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 507 ImplicationChecksByTransitivity, 65.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2875occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 22.0s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9934502262443438 AbsIntWeakeningRatio, 0.15441176470588236 AbsIntAvgWeakeningVarsNumRemoved, 675.7279411764706 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 49 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 333 NumberOfCodeBlocks, 333 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 330 ConstructedInterpolants, 0 QuantifiedInterpolants, 134340 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 55/110 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown