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/Problem19_label24_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 22:29:00,439 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 22:29:00,442 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 22:29:00,455 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 22:29:00,456 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 22:29:00,457 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 22:29:00,458 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 22:29:00,460 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 22:29:00,462 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 22:29:00,462 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 22:29:00,463 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 22:29:00,464 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 22:29:00,465 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 22:29:00,466 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 22:29:00,467 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 22:29:00,468 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 22:29:00,469 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 22:29:00,474 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 22:29:00,478 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 22:29:00,481 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 22:29:00,482 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 22:29:00,483 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 22:29:00,487 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 22:29:00,501 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 22:29:00,501 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 22:29:00,502 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 22:29:00,503 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 22:29:00,505 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 22:29:00,524 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 22:29:00,525 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 22:29:00,525 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 22:29:00,526 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 22:29:00,526 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 22:29:00,526 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 22:29:00,526 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 22:29:00,526 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 22:29:00,527 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 22:29:00,527 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 22:29:00,527 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 22:29:00,527 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 22:29:00,528 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 22:29:00,528 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 22:29:00,528 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 22:29:00,528 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 22:29:00,529 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 22:29:00,529 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 22:29:00,529 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 22:29:00,529 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 22:29:00,529 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 22:29:00,530 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 22:29:00,530 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 22:29:00,530 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 22:29:00,530 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 22:29:00,530 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 22:29:00,531 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 22:29:00,531 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 22:29:00,531 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 22:29:00,531 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 22:29:00,531 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 22:29:00,532 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 22:29:00,532 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 22:29:00,532 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 22:29:00,595 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 22:29:00,609 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 22:29:00,613 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 22:29:00,615 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 22:29:00,615 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 22:29:00,616 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label24_true-unreach-call.c [2018-10-24 22:29:00,684 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e18f5c1d0/a6fe4c921d01408287ce637866acfe4d/FLAGfd0f5d47b [2018-10-24 22:29:01,625 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 22:29:01,626 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label24_true-unreach-call.c [2018-10-24 22:29:01,693 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e18f5c1d0/a6fe4c921d01408287ce637866acfe4d/FLAGfd0f5d47b [2018-10-24 22:29:01,709 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e18f5c1d0/a6fe4c921d01408287ce637866acfe4d [2018-10-24 22:29:01,726 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 22:29:01,727 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 22:29:01,728 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 22:29:01,728 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 22:29:01,732 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 22:29:01,733 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:29:01" (1/1) ... [2018-10-24 22:29:01,737 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ba4e0b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:29:01, skipping insertion in model container [2018-10-24 22:29:01,737 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:29:01" (1/1) ... [2018-10-24 22:29:01,748 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 22:29:02,018 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 22:29:04,080 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 22:29:04,089 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 22:29:05,233 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 22:29:05,286 INFO L193 MainTranslator]: Completed translation [2018-10-24 22:29:05,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:29:05 WrapperNode [2018-10-24 22:29:05,287 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 22:29:05,287 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 22:29:05,288 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 22:29:05,288 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 22:29:05,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:29:05" (1/1) ... [2018-10-24 22:29:05,410 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:29:05" (1/1) ... [2018-10-24 22:29:06,051 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 22:29:06,052 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 22:29:06,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 22:29:06,052 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 22:29:06,062 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:29:05" (1/1) ... [2018-10-24 22:29:06,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:29:05" (1/1) ... [2018-10-24 22:29:06,100 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:29:05" (1/1) ... [2018-10-24 22:29:06,101 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:29:05" (1/1) ... [2018-10-24 22:29:06,263 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:29:05" (1/1) ... [2018-10-24 22:29:06,316 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:29:05" (1/1) ... [2018-10-24 22:29:06,434 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:29:05" (1/1) ... [2018-10-24 22:29:06,568 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 22:29:06,568 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 22:29:06,568 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 22:29:06,569 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 22:29:06,569 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:29:05" (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 22:29:06,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 22:29:06,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 22:29:06,639 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-10-24 22:29:06,639 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-10-24 22:29:06,639 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-10-24 22:29:06,639 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-10-24 22:29:06,639 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-24 22:29:06,640 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-24 22:29:06,640 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-24 22:29:06,640 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-24 22:29:06,640 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 22:29:06,640 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 22:29:06,640 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 22:29:06,642 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 22:29:06,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 22:29:06,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 22:29:06,643 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 22:29:06,643 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 22:29:24,334 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 22:29:24,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:29:24 BoogieIcfgContainer [2018-10-24 22:29:24,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 22:29:24,336 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 22:29:24,336 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 22:29:24,339 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 22:29:24,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:29:01" (1/3) ... [2018-10-24 22:29:24,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7336bc15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:29:24, skipping insertion in model container [2018-10-24 22:29:24,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:29:05" (2/3) ... [2018-10-24 22:29:24,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7336bc15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:29:24, skipping insertion in model container [2018-10-24 22:29:24,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:29:24" (3/3) ... [2018-10-24 22:29:24,344 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label24_true-unreach-call.c [2018-10-24 22:29:24,353 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 22:29:24,362 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 22:29:24,379 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 22:29:24,430 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 22:29:24,430 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 22:29:24,431 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 22:29:24,431 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 22:29:24,431 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 22:29:24,431 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 22:29:24,431 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 22:29:24,431 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 22:29:24,486 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-10-24 22:29:24,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-10-24 22:29:24,496 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:29:24,497 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] [2018-10-24 22:29:24,499 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:29:24,505 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:29:24,505 INFO L82 PathProgramCache]: Analyzing trace with hash -667594212, now seen corresponding path program 1 times [2018-10-24 22:29:24,508 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:29:24,557 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:29:24,557 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:29:24,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:29:24,558 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:29:24,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:29:24,971 WARN L179 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 22:29:25,092 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 22:29:25,094 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:29:25,095 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 22:29:25,095 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:29:25,101 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 22:29:25,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 22:29:25,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 22:29:25,126 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-10-24 22:29:41,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:29:41,759 INFO L93 Difference]: Finished difference Result 5049 states and 9513 transitions. [2018-10-24 22:29:41,762 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 22:29:41,764 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2018-10-24 22:29:41,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:29:41,820 INFO L225 Difference]: With dead ends: 5049 [2018-10-24 22:29:41,820 INFO L226 Difference]: Without dead ends: 3269 [2018-10-24 22:29:41,837 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 22:29:41,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3269 states. [2018-10-24 22:29:42,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3269 to 3218. [2018-10-24 22:29:42,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3218 states. [2018-10-24 22:29:42,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3218 states to 3218 states and 5997 transitions. [2018-10-24 22:29:42,078 INFO L78 Accepts]: Start accepts. Automaton has 3218 states and 5997 transitions. Word has length 52 [2018-10-24 22:29:42,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:29:42,079 INFO L481 AbstractCegarLoop]: Abstraction has 3218 states and 5997 transitions. [2018-10-24 22:29:42,079 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 22:29:42,079 INFO L276 IsEmpty]: Start isEmpty. Operand 3218 states and 5997 transitions. [2018-10-24 22:29:42,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-10-24 22:29:42,090 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:29:42,091 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:29:42,091 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:29:42,091 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:29:42,092 INFO L82 PathProgramCache]: Analyzing trace with hash -1067454159, now seen corresponding path program 1 times [2018-10-24 22:29:42,092 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:29:42,094 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:29:42,095 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:29:42,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:29:42,095 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:29:42,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:29:42,509 WARN L179 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 22:29:42,930 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 22:29:42,930 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:29:42,930 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 22:29:42,931 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:29:42,934 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 22:29:42,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 22:29:42,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 22:29:42,935 INFO L87 Difference]: Start difference. First operand 3218 states and 5997 transitions. Second operand 6 states. [2018-10-24 22:30:10,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:30:10,637 INFO L93 Difference]: Finished difference Result 12152 states and 23166 transitions. [2018-10-24 22:30:10,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 22:30:10,637 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 124 [2018-10-24 22:30:10,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:30:10,693 INFO L225 Difference]: With dead ends: 12152 [2018-10-24 22:30:10,693 INFO L226 Difference]: Without dead ends: 8940 [2018-10-24 22:30:10,709 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 22:30:10,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8940 states. [2018-10-24 22:30:10,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8940 to 8874. [2018-10-24 22:30:10,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8874 states. [2018-10-24 22:30:10,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8874 states to 8874 states and 14424 transitions. [2018-10-24 22:30:10,957 INFO L78 Accepts]: Start accepts. Automaton has 8874 states and 14424 transitions. Word has length 124 [2018-10-24 22:30:10,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:30:10,957 INFO L481 AbstractCegarLoop]: Abstraction has 8874 states and 14424 transitions. [2018-10-24 22:30:10,957 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 22:30:10,958 INFO L276 IsEmpty]: Start isEmpty. Operand 8874 states and 14424 transitions. [2018-10-24 22:30:10,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-10-24 22:30:10,964 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:30:10,964 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:30:10,964 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:30:10,965 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:30:10,965 INFO L82 PathProgramCache]: Analyzing trace with hash -1956611073, now seen corresponding path program 1 times [2018-10-24 22:30:10,965 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:30:10,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:30:10,966 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:30:10,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:30:10,966 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:30:10,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:30:11,179 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 22:30:11,179 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:30:11,179 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 22:30:11,179 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:30:11,181 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 22:30:11,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 22:30:11,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 22:30:11,182 INFO L87 Difference]: Start difference. First operand 8874 states and 14424 transitions. Second operand 5 states. [2018-10-24 22:30:49,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:30:49,337 INFO L93 Difference]: Finished difference Result 32253 states and 52929 transitions. [2018-10-24 22:30:49,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 22:30:49,346 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 126 [2018-10-24 22:30:49,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:30:49,438 INFO L225 Difference]: With dead ends: 32253 [2018-10-24 22:30:49,439 INFO L226 Difference]: Without dead ends: 23385 [2018-10-24 22:30:49,477 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 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 22:30:49,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23385 states. [2018-10-24 22:30:50,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23385 to 23205. [2018-10-24 22:30:50,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23205 states. [2018-10-24 22:30:50,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23205 states to 23205 states and 32220 transitions. [2018-10-24 22:30:50,082 INFO L78 Accepts]: Start accepts. Automaton has 23205 states and 32220 transitions. Word has length 126 [2018-10-24 22:30:50,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:30:50,082 INFO L481 AbstractCegarLoop]: Abstraction has 23205 states and 32220 transitions. [2018-10-24 22:30:50,083 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 22:30:50,083 INFO L276 IsEmpty]: Start isEmpty. Operand 23205 states and 32220 transitions. [2018-10-24 22:30:50,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-10-24 22:30:50,089 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:30:50,089 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:30:50,089 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:30:50,090 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:30:50,091 INFO L82 PathProgramCache]: Analyzing trace with hash -1540904621, now seen corresponding path program 1 times [2018-10-24 22:30:50,091 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:30:50,092 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:30:50,092 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:30:50,092 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:30:50,092 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:30:50,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:30:50,476 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 22:30:50,476 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:30:50,476 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 22:30:50,476 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:30:50,477 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 22:30:50,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 22:30:50,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 22:30:50,478 INFO L87 Difference]: Start difference. First operand 23205 states and 32220 transitions. Second operand 5 states. [2018-10-24 22:31:18,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:31:18,173 INFO L93 Difference]: Finished difference Result 70946 states and 102654 transitions. [2018-10-24 22:31:18,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 22:31:18,174 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2018-10-24 22:31:18,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:31:18,353 INFO L225 Difference]: With dead ends: 70946 [2018-10-24 22:31:18,353 INFO L226 Difference]: Without dead ends: 47747 [2018-10-24 22:31:18,423 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 22:31:18,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47747 states. [2018-10-24 22:31:19,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47747 to 46974. [2018-10-24 22:31:19,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46974 states. [2018-10-24 22:31:19,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46974 states to 46974 states and 61470 transitions. [2018-10-24 22:31:19,518 INFO L78 Accepts]: Start accepts. Automaton has 46974 states and 61470 transitions. Word has length 157 [2018-10-24 22:31:19,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:31:19,518 INFO L481 AbstractCegarLoop]: Abstraction has 46974 states and 61470 transitions. [2018-10-24 22:31:19,519 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 22:31:19,519 INFO L276 IsEmpty]: Start isEmpty. Operand 46974 states and 61470 transitions. [2018-10-24 22:31:19,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2018-10-24 22:31:19,528 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:31:19,531 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, 2, 2, 2, 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] [2018-10-24 22:31:19,532 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:31:19,532 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:31:19,532 INFO L82 PathProgramCache]: Analyzing trace with hash -1193629279, now seen corresponding path program 1 times [2018-10-24 22:31:19,532 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:31:19,533 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:31:19,533 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:31:19,533 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:31:19,534 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:31:19,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:31:19,803 WARN L179 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 22:31:20,049 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 90 proven. 67 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 22:31:20,050 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 22:31:20,050 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 22:31:20,051 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 206 with the following transitions: [2018-10-24 22:31:20,053 INFO L202 CegarAbsIntRunner]: [0], [1], [5227], [5234], [5242], [5250], [5258], [5266], [5274], [5282], [5290], [5298], [5306], [5314], [5322], [5330], [5338], [5346], [5354], [5362], [5370], [5378], [5386], [5394], [5402], [5410], [5418], [5426], [5434], [5442], [5450], [5458], [5466], [5474], [5482], [5490], [5498], [5506], [5514], [5522], [5530], [5538], [5542], [5544], [5547], [5555], [5563], [5571], [5579], [5587], [5595], [5603], [5611], [5619], [5627], [5635], [5643], [5651], [5659], [5667], [5675], [5683], [5691], [5699], [5707], [5715], [5727], [5731], [5734], [5739], [5741], [5742], [5746], [5750], [5754], [5758], [5762], [5766], [5769], [6802], [6806], [6810], [6816], [6820], [6822], [6837], [6838], [6839], [6841], [6842] [2018-10-24 22:31:20,121 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 22:31:20,122 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 22:31:22,622 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 22:31:22,624 INFO L272 AbstractInterpreter]: Visited 84 different actions 84 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-24 22:31:22,649 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:31:22,649 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 22:31:24,611 INFO L232 lantSequenceWeakener]: Weakened 195 states. On average, predicates are now at 75.76% of their original sizes. [2018-10-24 22:31:24,611 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 22:31:24,998 INFO L413 sIntCurrentIteration]: We have 204 unified AI predicates [2018-10-24 22:31:24,998 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 22:31:24,999 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 22:31:24,999 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-10-24 22:31:24,999 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:31:25,000 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 22:31:25,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 22:31:25,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 22:31:25,001 INFO L87 Difference]: Start difference. First operand 46974 states and 61470 transitions. Second operand 7 states. [2018-10-24 22:31:28,907 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-24 22:32:40,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 22:32:40,174 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 22:32:40,178 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 22:32:40,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:32:40 BoogieIcfgContainer [2018-10-24 22:32:40,179 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 22:32:40,179 INFO L168 Benchmark]: Toolchain (without parser) took 218453.23 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -651.7 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-10-24 22:32:40,181 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 22:32:40,181 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3558.81 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 972.8 MB in the end (delta: 401.6 MB). Peak memory consumption was 401.6 MB. Max. memory is 7.1 GB. [2018-10-24 22:32:40,182 INFO L168 Benchmark]: Boogie Procedure Inliner took 763.87 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 800.6 MB). Free memory was 972.8 MB in the beginning and 2.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. [2018-10-24 22:32:40,183 INFO L168 Benchmark]: Boogie Preprocessor took 516.36 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 61.1 MB). Peak memory consumption was 61.1 MB. Max. memory is 7.1 GB. [2018-10-24 22:32:40,184 INFO L168 Benchmark]: RCFGBuilder took 17766.93 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 206.6 MB). Free memory was 2.1 GB in the beginning and 1.7 GB in the end (delta: 435.2 MB). Peak memory consumption was 666.1 MB. Max. memory is 7.1 GB. [2018-10-24 22:32:40,185 INFO L168 Benchmark]: TraceAbstraction took 195842.66 ms. Allocated memory was 2.5 GB in the beginning and 4.1 GB in the end (delta: 1.5 GB). Free memory was 1.7 GB in the beginning and 2.0 GB in the end (delta: -340.0 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-10-24 22:32:40,191 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3558.81 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 972.8 MB in the end (delta: 401.6 MB). Peak memory consumption was 401.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 763.87 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 800.6 MB). Free memory was 972.8 MB in the beginning and 2.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 516.36 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 61.1 MB). Peak memory consumption was 61.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 17766.93 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 206.6 MB). Free memory was 2.1 GB in the beginning and 1.7 GB in the end (delta: 435.2 MB). Peak memory consumption was 666.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 195842.66 ms. Allocated memory was 2.5 GB in the beginning and 4.1 GB in the end (delta: 1.5 GB). Free memory was 1.7 GB in the beginning and 2.0 GB in the end (delta: -340.0 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 151]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 151). Cancelled while BasicCegarLoop was constructing difference of abstraction (46974states) and FLOYD_HOARE automaton (currently 7 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (20101 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 195.7s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 185.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2496 SDtfs, 25619 SDslu, 2863 SDs, 0 SdLazy, 38801 SolverSat, 9743 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 144.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 239 GetRequests, 210 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46974occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.5s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9954449472096529 AbsIntWeakeningRatio, 0.13725490196078433 AbsIntAvgWeakeningVarsNumRemoved, 1031.2401960784314 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 1070 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 664 NumberOfCodeBlocks, 664 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 659 ConstructedInterpolants, 0 QuantifiedInterpolants, 257708 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 230/297 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown