java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label09_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 03:41:12,425 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 03:41:12,428 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 03:41:12,444 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 03:41:12,444 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 03:41:12,446 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 03:41:12,447 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 03:41:12,449 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 03:41:12,451 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 03:41:12,454 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 03:41:12,454 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 03:41:12,456 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 03:41:12,457 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 03:41:12,459 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 03:41:12,466 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 03:41:12,467 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 03:41:12,470 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 03:41:12,474 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 03:41:12,477 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 03:41:12,479 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 03:41:12,480 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 03:41:12,483 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 03:41:12,489 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-07 03:41:12,497 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 03:41:12,497 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 03:41:12,499 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 03:41:12,501 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 03:41:12,501 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-07 03:41:12,517 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 03:41:12,518 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 03:41:12,519 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 03:41:12,519 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 03:41:12,519 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 03:41:12,520 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 03:41:12,522 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 03:41:12,522 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 03:41:12,522 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 03:41:12,523 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 03:41:12,523 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 03:41:12,523 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 03:41:12,524 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 03:41:12,524 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 03:41:12,524 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 03:41:12,524 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 03:41:12,525 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 03:41:12,525 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 03:41:12,525 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 03:41:12,525 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 03:41:12,525 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 03:41:12,526 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 03:41:12,527 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 03:41:12,527 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 03:41:12,527 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 03:41:12,527 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 03:41:12,527 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 03:41:12,528 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 03:41:12,528 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 03:41:12,528 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 03:41:12,528 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 03:41:12,528 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 03:41:12,529 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 03:41:12,529 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 03:41:12,584 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 03:41:12,600 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 03:41:12,604 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 03:41:12,606 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 03:41:12,606 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 03:41:12,607 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label09_true-unreach-call.c [2018-11-07 03:41:12,678 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb5d5b580/08b3836e4b03442781250fc07fbbd056/FLAGbdc52a22c [2018-11-07 03:41:13,345 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 03:41:13,346 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label09_true-unreach-call.c [2018-11-07 03:41:13,382 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb5d5b580/08b3836e4b03442781250fc07fbbd056/FLAGbdc52a22c [2018-11-07 03:41:13,403 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb5d5b580/08b3836e4b03442781250fc07fbbd056 [2018-11-07 03:41:13,415 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 03:41:13,418 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 03:41:13,419 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 03:41:13,420 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 03:41:13,425 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 03:41:13,426 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:41:13" (1/1) ... [2018-11-07 03:41:13,429 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cb7d90b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:13, skipping insertion in model container [2018-11-07 03:41:13,429 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:41:13" (1/1) ... [2018-11-07 03:41:13,440 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 03:41:13,525 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 03:41:14,373 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 03:41:14,386 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 03:41:14,712 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 03:41:14,733 INFO L193 MainTranslator]: Completed translation [2018-11-07 03:41:14,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:14 WrapperNode [2018-11-07 03:41:14,734 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 03:41:14,735 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 03:41:14,735 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 03:41:14,736 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 03:41:14,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:14" (1/1) ... [2018-11-07 03:41:14,913 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:14" (1/1) ... [2018-11-07 03:41:14,927 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 03:41:14,927 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 03:41:14,927 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 03:41:14,927 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 03:41:14,945 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:14" (1/1) ... [2018-11-07 03:41:14,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:14" (1/1) ... [2018-11-07 03:41:14,954 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:14" (1/1) ... [2018-11-07 03:41:14,955 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:14" (1/1) ... [2018-11-07 03:41:15,023 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:14" (1/1) ... [2018-11-07 03:41:15,044 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:14" (1/1) ... [2018-11-07 03:41:15,065 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:14" (1/1) ... [2018-11-07 03:41:15,082 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 03:41:15,083 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 03:41:15,083 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 03:41:15,083 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 03:41:15,084 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-11-07 03:41:15,157 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 03:41:15,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 03:41:15,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 03:41:15,157 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 03:41:15,158 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 03:41:15,158 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 03:41:15,158 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 03:41:15,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 03:41:15,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 03:41:15,159 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 03:41:15,159 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 03:41:21,037 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 03:41:21,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:41:21 BoogieIcfgContainer [2018-11-07 03:41:21,038 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 03:41:21,039 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 03:41:21,040 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 03:41:21,043 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 03:41:21,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:41:13" (1/3) ... [2018-11-07 03:41:21,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51ec4f3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:41:21, skipping insertion in model container [2018-11-07 03:41:21,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:14" (2/3) ... [2018-11-07 03:41:21,045 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51ec4f3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:41:21, skipping insertion in model container [2018-11-07 03:41:21,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:41:21" (3/3) ... [2018-11-07 03:41:21,047 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label09_true-unreach-call.c [2018-11-07 03:41:21,057 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 03:41:21,067 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 03:41:21,085 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 03:41:21,127 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 03:41:21,127 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 03:41:21,127 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 03:41:21,127 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 03:41:21,128 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 03:41:21,128 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 03:41:21,128 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 03:41:21,128 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 03:41:21,165 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-11-07 03:41:21,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-11-07 03:41:21,175 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:41:21,176 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 03:41:21,179 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:41:21,184 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:41:21,184 INFO L82 PathProgramCache]: Analyzing trace with hash -1905211356, now seen corresponding path program 1 times [2018-11-07 03:41:21,186 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:41:21,238 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:41:21,239 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:41:21,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:41:21,239 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:41:21,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:41:21,672 WARN L179 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 03:41:21,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:41:21,779 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:41:21,779 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 03:41:21,779 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:41:21,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 03:41:21,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 03:41:21,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 03:41:21,805 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 3 states. [2018-11-07 03:41:24,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:41:24,923 INFO L93 Difference]: Finished difference Result 1156 states and 2144 transitions. [2018-11-07 03:41:24,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 03:41:24,924 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 54 [2018-11-07 03:41:24,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:41:24,949 INFO L225 Difference]: With dead ends: 1156 [2018-11-07 03:41:24,949 INFO L226 Difference]: Without dead ends: 744 [2018-11-07 03:41:24,960 INFO L604 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 [2018-11-07 03:41:24,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-11-07 03:41:25,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2018-11-07 03:41:25,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-11-07 03:41:25,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1355 transitions. [2018-11-07 03:41:25,068 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1355 transitions. Word has length 54 [2018-11-07 03:41:25,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:41:25,069 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1355 transitions. [2018-11-07 03:41:25,069 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 03:41:25,070 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1355 transitions. [2018-11-07 03:41:25,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-11-07 03:41:25,078 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:41:25,078 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 03:41:25,079 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:41:25,079 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:41:25,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1783759150, now seen corresponding path program 1 times [2018-11-07 03:41:25,079 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:41:25,081 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:41:25,081 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:41:25,081 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:41:25,081 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:41:25,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:41:25,390 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:41:25,390 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:41:25,390 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 03:41:25,391 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:41:25,394 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 03:41:25,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 03:41:25,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 03:41:25,395 INFO L87 Difference]: Start difference. First operand 744 states and 1355 transitions. Second operand 5 states. [2018-11-07 03:41:30,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:41:30,620 INFO L93 Difference]: Finished difference Result 2189 states and 4061 transitions. [2018-11-07 03:41:30,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 03:41:30,621 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 126 [2018-11-07 03:41:30,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:41:30,634 INFO L225 Difference]: With dead ends: 2189 [2018-11-07 03:41:30,634 INFO L226 Difference]: Without dead ends: 1451 [2018-11-07 03:41:30,640 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 03:41:30,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1451 states. [2018-11-07 03:41:30,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1451 to 1441. [2018-11-07 03:41:30,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1441 states. [2018-11-07 03:41:30,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1441 states to 1441 states and 2402 transitions. [2018-11-07 03:41:30,703 INFO L78 Accepts]: Start accepts. Automaton has 1441 states and 2402 transitions. Word has length 126 [2018-11-07 03:41:30,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:41:30,703 INFO L480 AbstractCegarLoop]: Abstraction has 1441 states and 2402 transitions. [2018-11-07 03:41:30,704 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 03:41:30,704 INFO L276 IsEmpty]: Start isEmpty. Operand 1441 states and 2402 transitions. [2018-11-07 03:41:30,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-11-07 03:41:30,712 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:41:30,713 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 03:41:30,713 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:41:30,713 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:41:30,713 INFO L82 PathProgramCache]: Analyzing trace with hash 1039509551, now seen corresponding path program 1 times [2018-11-07 03:41:30,714 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:41:30,715 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:41:30,715 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:41:30,715 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:41:30,715 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:41:30,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:41:30,948 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-07 03:41:30,948 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 03:41:30,949 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 03:41:30,950 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 156 with the following transitions: [2018-11-07 03:41:30,952 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [511], [513], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [796], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 03:41:31,023 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 03:41:31,023 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 03:41:33,291 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 03:41:33,385 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 03:41:33,387 INFO L272 AbstractInterpreter]: Visited 105 different actions 105 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 03:41:33,400 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:41:33,400 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 03:41:34,713 INFO L227 lantSequenceWeakener]: Weakened 150 states. On average, predicates are now at 78.45% of their original sizes. [2018-11-07 03:41:34,713 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 03:41:34,926 INFO L415 sIntCurrentIteration]: We unified 154 AI predicates to 154 [2018-11-07 03:41:34,926 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 03:41:34,927 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 03:41:34,927 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 9 [2018-11-07 03:41:34,927 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:41:34,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-07 03:41:34,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-07 03:41:34,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-07 03:41:34,929 INFO L87 Difference]: Start difference. First operand 1441 states and 2402 transitions. Second operand 7 states. [2018-11-07 03:42:28,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:42:28,239 INFO L93 Difference]: Finished difference Result 3216 states and 5295 transitions. [2018-11-07 03:42:28,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 03:42:28,239 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 155 [2018-11-07 03:42:28,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:42:28,249 INFO L225 Difference]: With dead ends: 3216 [2018-11-07 03:42:28,250 INFO L226 Difference]: Without dead ends: 1781 [2018-11-07 03:42:28,258 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 155 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-11-07 03:42:28,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1781 states. [2018-11-07 03:42:28,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1781 to 1779. [2018-11-07 03:42:28,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1779 states. [2018-11-07 03:42:28,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1779 states to 1779 states and 2747 transitions. [2018-11-07 03:42:28,313 INFO L78 Accepts]: Start accepts. Automaton has 1779 states and 2747 transitions. Word has length 155 [2018-11-07 03:42:28,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:42:28,314 INFO L480 AbstractCegarLoop]: Abstraction has 1779 states and 2747 transitions. [2018-11-07 03:42:28,314 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-07 03:42:28,314 INFO L276 IsEmpty]: Start isEmpty. Operand 1779 states and 2747 transitions. [2018-11-07 03:42:28,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2018-11-07 03:42:28,319 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:42:28,319 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 03:42:28,319 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:42:28,320 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:42:28,320 INFO L82 PathProgramCache]: Analyzing trace with hash 171691597, now seen corresponding path program 1 times [2018-11-07 03:42:28,320 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:42:28,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:42:28,321 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:42:28,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:42:28,322 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:42:28,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:42:28,650 WARN L179 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-11-07 03:42:29,235 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 161 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:42:29,235 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 03:42:29,235 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 03:42:29,235 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 248 with the following transitions: [2018-11-07 03:42:29,236 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [511], [513], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [765], [769], [773], [777], [781], [785], [789], [793], [796], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 03:42:29,242 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 03:42:29,242 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 03:42:30,390 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 03:42:39,496 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 03:42:39,496 INFO L272 AbstractInterpreter]: Visited 109 different actions 417 times. Merged at 5 different actions 14 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 03:42:39,503 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:42:39,503 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 03:42:42,303 INFO L227 lantSequenceWeakener]: Weakened 61 states. On average, predicates are now at 79.21% of their original sizes. [2018-11-07 03:42:42,304 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 03:43:15,377 INFO L415 sIntCurrentIteration]: We unified 246 AI predicates to 246 [2018-11-07 03:43:15,377 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 03:43:15,378 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 03:43:15,378 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [7] total 19 [2018-11-07 03:43:15,378 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:43:15,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-07 03:43:15,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-07 03:43:15,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2018-11-07 03:43:15,379 INFO L87 Difference]: Start difference. First operand 1779 states and 2747 transitions. Second operand 14 states. Received shutdown request... [2018-11-07 03:45:13,418 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-11-07 03:45:13,418 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 03:45:13,424 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 03:45:13,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 03:45:13 BoogieIcfgContainer [2018-11-07 03:45:13,424 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 03:45:13,425 INFO L168 Benchmark]: Toolchain (without parser) took 240009.20 ms. Allocated memory was 1.5 GB in the beginning and 4.3 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.4 GB in the end (delta: -921.2 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-11-07 03:45:13,427 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 03:45:13,427 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1315.41 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-11-07 03:45:13,428 INFO L168 Benchmark]: Boogie Procedure Inliner took 191.65 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 767.0 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -908.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 7.1 GB. [2018-11-07 03:45:13,429 INFO L168 Benchmark]: Boogie Preprocessor took 155.39 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. [2018-11-07 03:45:13,430 INFO L168 Benchmark]: RCFGBuilder took 5955.19 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 248.8 MB). Peak memory consumption was 248.8 MB. Max. memory is 7.1 GB. [2018-11-07 03:45:13,431 INFO L168 Benchmark]: TraceAbstraction took 232385.37 ms. Allocated memory was 2.3 GB in the beginning and 4.3 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -359.5 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-11-07 03:45:13,437 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1315.41 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 191.65 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 767.0 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -908.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 155.39 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5955.19 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 248.8 MB). Peak memory consumption was 248.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 232385.37 ms. Allocated memory was 2.3 GB in the beginning and 4.3 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -359.5 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 148]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 148). Cancelled while BasicCegarLoop was constructing difference of abstraction (1779states) and FLOYD_HOARE automaton (currently 17 states, 14 states before enhancement),while ReachableStatesComputation was computing reachable states (985 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 232.3s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 179.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 735 SDtfs, 3874 SDslu, 554 SDs, 0 SdLazy, 5606 SolverSat, 1378 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 82.5s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 421 GetRequests, 332 SyntacticMatches, 58 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 34.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1779occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 12.7s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9949547101449275 AbsIntWeakeningRatio, 0.115 AbsIntAvgWeakeningVarsNumRemoved, 569.99 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 12 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 582 NumberOfCodeBlocks, 582 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 578 ConstructedInterpolants, 0 QuantifiedInterpolants, 429259 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 212/280 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown