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_label29_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 19:05:35,414 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 19:05:35,417 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 19:05:35,432 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 19:05:35,433 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 19:05:35,436 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 19:05:35,438 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 19:05:35,441 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 19:05:35,449 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 19:05:35,450 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 19:05:35,452 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 19:05:35,452 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 19:05:35,454 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 19:05:35,455 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 19:05:35,457 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 19:05:35,460 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 19:05:35,461 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 19:05:35,464 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 19:05:35,466 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 19:05:35,468 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 19:05:35,469 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 19:05:35,470 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 19:05:35,474 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 19:05:35,479 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 19:05:35,480 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 19:05:35,480 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 19:05:35,481 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 19:05:35,481 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 19:05:35,499 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 19:05:35,499 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 19:05:35,500 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 19:05:35,500 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 19:05:35,503 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 19:05:35,503 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 19:05:35,503 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 19:05:35,504 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 19:05:35,504 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 19:05:35,504 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 19:05:35,504 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 19:05:35,504 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 19:05:35,505 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 19:05:35,505 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 19:05:35,507 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 19:05:35,507 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 19:05:35,507 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 19:05:35,507 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 19:05:35,507 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 19:05:35,508 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 19:05:35,508 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 19:05:35,508 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 19:05:35,508 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 19:05:35,508 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 19:05:35,509 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 19:05:35,510 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 19:05:35,510 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 19:05:35,510 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 19:05:35,511 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 19:05:35,511 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 19:05:35,511 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 19:05:35,511 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 19:05:35,511 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 19:05:35,511 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 19:05:35,579 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 19:05:35,596 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 19:05:35,600 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 19:05:35,602 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 19:05:35,602 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 19:05:35,604 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label29_false-unreach-call.c [2018-10-24 19:05:35,665 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/36a7a76e3/b7a15203af3241c6a5fc8d1458aa2d83/FLAGba45a2d9b [2018-10-24 19:05:36,594 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 19:05:36,596 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label29_false-unreach-call.c [2018-10-24 19:05:36,646 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/36a7a76e3/b7a15203af3241c6a5fc8d1458aa2d83/FLAGba45a2d9b [2018-10-24 19:05:36,665 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/36a7a76e3/b7a15203af3241c6a5fc8d1458aa2d83 [2018-10-24 19:05:36,678 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 19:05:36,680 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 19:05:36,681 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 19:05:36,682 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 19:05:36,687 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 19:05:36,688 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:05:36" (1/1) ... [2018-10-24 19:05:36,691 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17c960ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:36, skipping insertion in model container [2018-10-24 19:05:36,691 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:05:36" (1/1) ... [2018-10-24 19:05:36,703 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 19:05:36,963 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 19:05:38,925 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 19:05:38,935 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 19:05:39,954 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 19:05:40,004 INFO L193 MainTranslator]: Completed translation [2018-10-24 19:05:40,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:40 WrapperNode [2018-10-24 19:05:40,005 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 19:05:40,006 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 19:05:40,006 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 19:05:40,006 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 19:05:40,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:40" (1/1) ... [2018-10-24 19:05:40,116 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:40" (1/1) ... [2018-10-24 19:05:40,738 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 19:05:40,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 19:05:40,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 19:05:40,739 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 19:05:40,750 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:40" (1/1) ... [2018-10-24 19:05:40,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:40" (1/1) ... [2018-10-24 19:05:40,805 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:40" (1/1) ... [2018-10-24 19:05:40,805 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:40" (1/1) ... [2018-10-24 19:05:40,974 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:40" (1/1) ... [2018-10-24 19:05:41,026 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:40" (1/1) ... [2018-10-24 19:05:41,082 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:40" (1/1) ... [2018-10-24 19:05:41,162 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 19:05:41,163 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 19:05:41,163 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 19:05:41,163 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 19:05:41,164 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 19:05:41,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 19:05:41,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 19:05:41,236 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-10-24 19:05:41,236 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-10-24 19:05:41,236 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-10-24 19:05:41,236 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-10-24 19:05:41,236 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-24 19:05:41,237 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-24 19:05:41,237 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-24 19:05:41,237 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-24 19:05:41,237 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 19:05:41,237 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 19:05:41,237 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 19:05:41,238 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 19:05:41,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 19:05:41,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 19:05:41,239 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 19:05:41,239 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 19:06:01,286 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 19:06:01,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:06:01 BoogieIcfgContainer [2018-10-24 19:06:01,287 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 19:06:01,288 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 19:06:01,288 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 19:06:01,291 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 19:06:01,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:05:36" (1/3) ... [2018-10-24 19:06:01,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67cac48a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:06:01, skipping insertion in model container [2018-10-24 19:06:01,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:40" (2/3) ... [2018-10-24 19:06:01,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67cac48a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:06:01, skipping insertion in model container [2018-10-24 19:06:01,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:06:01" (3/3) ... [2018-10-24 19:06:01,295 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label29_false-unreach-call.c [2018-10-24 19:06:01,305 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 19:06:01,316 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 19:06:01,334 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 19:06:01,388 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 19:06:01,389 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 19:06:01,389 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 19:06:01,389 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 19:06:01,389 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 19:06:01,389 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 19:06:01,390 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 19:06:01,390 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 19:06:01,448 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-10-24 19:06:01,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-10-24 19:06:01,456 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:06:01,457 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] [2018-10-24 19:06:01,459 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:06:01,465 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:06:01,466 INFO L82 PathProgramCache]: Analyzing trace with hash -1784258372, now seen corresponding path program 1 times [2018-10-24 19:06:01,468 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:06:01,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:06:01,527 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:06:01,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:06:01,527 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:06:01,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:06:01,888 WARN L179 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 19:06:01,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:06:01,998 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:06:01,998 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 19:06:01,999 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:06:02,005 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 19:06:02,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 19:06:02,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 19:06:02,026 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-10-24 19:06:19,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:06:19,120 INFO L93 Difference]: Finished difference Result 4999 states and 9420 transitions. [2018-10-24 19:06:19,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 19:06:19,129 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2018-10-24 19:06:19,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:06:19,181 INFO L225 Difference]: With dead ends: 4999 [2018-10-24 19:06:19,181 INFO L226 Difference]: Without dead ends: 3219 [2018-10-24 19:06:19,193 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 19:06:19,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3219 states. [2018-10-24 19:06:19,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3219 to 3215. [2018-10-24 19:06:19,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3215 states. [2018-10-24 19:06:19,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3215 states to 3215 states and 5845 transitions. [2018-10-24 19:06:19,413 INFO L78 Accepts]: Start accepts. Automaton has 3215 states and 5845 transitions. Word has length 28 [2018-10-24 19:06:19,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:06:19,414 INFO L481 AbstractCegarLoop]: Abstraction has 3215 states and 5845 transitions. [2018-10-24 19:06:19,414 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 19:06:19,414 INFO L276 IsEmpty]: Start isEmpty. Operand 3215 states and 5845 transitions. [2018-10-24 19:06:19,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-10-24 19:06:19,420 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:06:19,421 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:06:19,421 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:06:19,421 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:06:19,422 INFO L82 PathProgramCache]: Analyzing trace with hash -1452383789, now seen corresponding path program 1 times [2018-10-24 19:06:19,422 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:06:19,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:06:19,423 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:06:19,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:06:19,423 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:06:19,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:06:19,828 WARN L179 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 19:06:20,206 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:06:20,206 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:06:20,207 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 19:06:20,207 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:06:20,209 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 19:06:20,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 19:06:20,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 19:06:20,210 INFO L87 Difference]: Start difference. First operand 3215 states and 5845 transitions. Second operand 6 states. [2018-10-24 19:06:51,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:06:51,639 INFO L93 Difference]: Finished difference Result 9331 states and 16910 transitions. [2018-10-24 19:06:51,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 19:06:51,642 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 100 [2018-10-24 19:06:51,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:06:51,679 INFO L225 Difference]: With dead ends: 9331 [2018-10-24 19:06:51,679 INFO L226 Difference]: Without dead ends: 6122 [2018-10-24 19:06:51,690 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 19:06:51,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6122 states. [2018-10-24 19:06:51,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6122 to 6084. [2018-10-24 19:06:51,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6084 states. [2018-10-24 19:06:51,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6084 states to 6084 states and 9616 transitions. [2018-10-24 19:06:51,848 INFO L78 Accepts]: Start accepts. Automaton has 6084 states and 9616 transitions. Word has length 100 [2018-10-24 19:06:51,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:06:51,849 INFO L481 AbstractCegarLoop]: Abstraction has 6084 states and 9616 transitions. [2018-10-24 19:06:51,849 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 19:06:51,849 INFO L276 IsEmpty]: Start isEmpty. Operand 6084 states and 9616 transitions. [2018-10-24 19:06:51,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-10-24 19:06:51,855 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:06:51,855 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:06:51,855 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:06:51,856 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:06:51,856 INFO L82 PathProgramCache]: Analyzing trace with hash 299475857, now seen corresponding path program 1 times [2018-10-24 19:06:51,856 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:06:51,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:06:51,857 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:06:51,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:06:51,858 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:06:51,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:06:52,080 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:06:52,080 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:06:52,081 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 19:06:52,081 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:06:52,081 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 19:06:52,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 19:06:52,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-24 19:06:52,082 INFO L87 Difference]: Start difference. First operand 6084 states and 9616 transitions. Second operand 6 states. [2018-10-24 19:07:41,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:07:41,245 INFO L93 Difference]: Finished difference Result 24241 states and 39703 transitions. [2018-10-24 19:07:41,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-24 19:07:41,246 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 118 [2018-10-24 19:07:41,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:07:41,359 INFO L225 Difference]: With dead ends: 24241 [2018-10-24 19:07:41,360 INFO L226 Difference]: Without dead ends: 18163 [2018-10-24 19:07:41,399 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-24 19:07:41,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18163 states. [2018-10-24 19:07:41,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18163 to 18089. [2018-10-24 19:07:41,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18089 states. [2018-10-24 19:07:41,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18089 states to 18089 states and 25633 transitions. [2018-10-24 19:07:41,925 INFO L78 Accepts]: Start accepts. Automaton has 18089 states and 25633 transitions. Word has length 118 [2018-10-24 19:07:41,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:07:41,925 INFO L481 AbstractCegarLoop]: Abstraction has 18089 states and 25633 transitions. [2018-10-24 19:07:41,925 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 19:07:41,926 INFO L276 IsEmpty]: Start isEmpty. Operand 18089 states and 25633 transitions. [2018-10-24 19:07:41,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2018-10-24 19:07:41,938 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:07:41,939 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:07:41,939 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:07:41,939 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:07:41,940 INFO L82 PathProgramCache]: Analyzing trace with hash -483353840, now seen corresponding path program 1 times [2018-10-24 19:07:41,940 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:07:41,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:07:41,941 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:07:41,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:07:41,941 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:07:41,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:07:42,330 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:07:42,330 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:07:42,331 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 19:07:42,331 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:07:42,331 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 19:07:42,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 19:07:42,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 19:07:42,332 INFO L87 Difference]: Start difference. First operand 18089 states and 25633 transitions. Second operand 5 states. [2018-10-24 19:08:12,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:08:12,833 INFO L93 Difference]: Finished difference Result 56344 states and 85046 transitions. [2018-10-24 19:08:12,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 19:08:12,834 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 163 [2018-10-24 19:08:12,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:08:13,018 INFO L225 Difference]: With dead ends: 56344 [2018-10-24 19:08:13,019 INFO L226 Difference]: Without dead ends: 38261 [2018-10-24 19:08:13,087 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 19:08:13,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38261 states. [2018-10-24 19:08:13,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38261 to 37204. [2018-10-24 19:08:13,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37204 states. [2018-10-24 19:08:14,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37204 states to 37204 states and 50508 transitions. [2018-10-24 19:08:14,041 INFO L78 Accepts]: Start accepts. Automaton has 37204 states and 50508 transitions. Word has length 163 [2018-10-24 19:08:14,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:08:14,042 INFO L481 AbstractCegarLoop]: Abstraction has 37204 states and 50508 transitions. [2018-10-24 19:08:14,043 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 19:08:14,043 INFO L276 IsEmpty]: Start isEmpty. Operand 37204 states and 50508 transitions. [2018-10-24 19:08:14,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2018-10-24 19:08:14,048 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:08:14,049 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 19:08:14,049 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:08:14,049 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:08:14,050 INFO L82 PathProgramCache]: Analyzing trace with hash -1157490002, now seen corresponding path program 1 times [2018-10-24 19:08:14,050 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:08:14,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:08:14,051 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:08:14,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:08:14,053 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:08:14,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:08:14,863 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 42 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 19:08:14,863 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 19:08:14,863 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 19:08:14,865 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 184 with the following transitions: [2018-10-24 19:08:14,867 INFO L202 CegarAbsIntRunner]: [0], [1], [5227], [5234], [5242], [5250], [5258], [5266], [5274], [5282], [5290], [5298], [5306], [5314], [5322], [5330], [5338], [5346], [5350], [5352], [5355], [5363], [5371], [5379], [5387], [5395], [5403], [5411], [5419], [5427], [5435], [5443], [5451], [5459], [5467], [5475], [5483], [5491], [5499], [5507], [5515], [5523], [5531], [5539], [5547], [5555], [5563], [5571], [5579], [5587], [5595], [5603], [5611], [5619], [5627], [5635], [5643], [5651], [5659], [5667], [5675], [5683], [5691], [5699], [5707], [5715], [5727], [5731], [5742], [5745], [5746], [5750], [5754], [5758], [5762], [5766], [5770], [5774], [5778], [5781], [6802], [6806], [6810], [6816], [6820], [6822], [6837], [6838], [6839], [6841], [6842] [2018-10-24 19:08:14,938 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 19:08:14,938 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 19:08:17,180 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 19:08:17,182 INFO L272 AbstractInterpreter]: Visited 87 different actions 87 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-24 19:08:17,191 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:08:17,191 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 19:08:19,483 INFO L232 lantSequenceWeakener]: Weakened 175 states. On average, predicates are now at 75.28% of their original sizes. [2018-10-24 19:08:19,483 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 19:08:19,981 INFO L413 sIntCurrentIteration]: We have 182 unified AI predicates [2018-10-24 19:08:19,981 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 19:08:19,982 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 19:08:19,983 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-10-24 19:08:19,983 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:08:19,984 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 19:08:19,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 19:08:19,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 19:08:19,984 INFO L87 Difference]: Start difference. First operand 37204 states and 50508 transitions. Second operand 7 states. [2018-10-24 19:08:23,070 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-24 19:09:18,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 19:09:18,564 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 19:09:18,570 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 19:09:18,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 07:09:18 BoogieIcfgContainer [2018-10-24 19:09:18,571 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 19:09:18,571 INFO L168 Benchmark]: Toolchain (without parser) took 221892.87 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.9 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-10-24 19:09:18,572 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 19:09:18,573 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3324.30 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 392.7 MB). Peak memory consumption was 392.7 MB. Max. memory is 7.1 GB. [2018-10-24 19:09:18,574 INFO L168 Benchmark]: Boogie Procedure Inliner took 731.93 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 868.2 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 117.2 MB. Max. memory is 7.1 GB. [2018-10-24 19:09:18,575 INFO L168 Benchmark]: Boogie Preprocessor took 424.28 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 59.2 MB). Peak memory consumption was 59.2 MB. Max. memory is 7.1 GB. [2018-10-24 19:09:18,575 INFO L168 Benchmark]: RCFGBuilder took 20124.34 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 158.3 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 517.0 MB). Peak memory consumption was 675.3 MB. Max. memory is 7.1 GB. [2018-10-24 19:09:18,577 INFO L168 Benchmark]: TraceAbstraction took 197282.49 ms. Allocated memory was 2.6 GB in the beginning and 4.2 GB in the end (delta: 1.6 GB). Free memory was 1.7 GB in the beginning and 2.9 GB in the end (delta: -1.2 GB). Peak memory consumption was 405.8 MB. Max. memory is 7.1 GB. [2018-10-24 19:09:18,582 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 3324.30 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 392.7 MB). Peak memory consumption was 392.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 731.93 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 868.2 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 117.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 424.28 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 59.2 MB). Peak memory consumption was 59.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 20124.34 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 158.3 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 517.0 MB). Peak memory consumption was 675.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 197282.49 ms. Allocated memory was 2.6 GB in the beginning and 4.2 GB in the end (delta: 1.6 GB). Free memory was 1.7 GB in the beginning and 2.9 GB in the end (delta: -1.2 GB). Peak memory consumption was 405.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 79]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 79). Cancelled while BasicCegarLoop was constructing difference of abstraction (37204states) and FLOYD_HOARE automaton (currently 7 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (15168 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 197.1s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 187.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2730 SDtfs, 22275 SDslu, 3261 SDs, 0 SdLazy, 40656 SolverSat, 10284 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 147.4s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 218 GetRequests, 187 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37204occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.3s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9946745562130176 AbsIntWeakeningRatio, 0.14835164835164835 AbsIntAvgWeakeningVarsNumRemoved, 1032.2032967032967 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.8s AutomataMinimizationTime, 4 MinimizatonAttempts, 1173 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 592 NumberOfCodeBlocks, 592 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 587 ConstructedInterpolants, 0 QuantifiedInterpolants, 372816 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 110/178 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown