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/Problem13_label38_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 03:19:11,886 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 03:19:11,889 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 03:19:11,905 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 03:19:11,905 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 03:19:11,907 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 03:19:11,909 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 03:19:11,911 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 03:19:11,913 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 03:19:11,915 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 03:19:11,917 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 03:19:11,917 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 03:19:11,918 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 03:19:11,921 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 03:19:11,929 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 03:19:11,930 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 03:19:11,930 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 03:19:11,932 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 03:19:11,936 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 03:19:11,937 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 03:19:11,938 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 03:19:11,939 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 03:19:11,941 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-07 03:19:11,949 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 03:19:11,972 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 03:19:11,972 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 03:19:11,973 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 03:19:11,973 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 03:19:11,973 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 03:19:11,973 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 03:19:11,974 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 03:19:11,977 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 03:19:11,978 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 03:19:11,978 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 03:19:11,978 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 03:19:11,978 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 03:19:11,979 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 03:19:11,979 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 03:19:11,979 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 03:19:11,979 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 03:19:11,980 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 03:19:11,980 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 03:19:11,980 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 03:19:11,980 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 03:19:11,980 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 03:19:11,981 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 03:19:11,981 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 03:19:11,981 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 03:19:11,981 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 03:19:11,981 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 03:19:11,982 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 03:19:11,983 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 03:19:11,984 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 03:19:11,984 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 03:19:11,984 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 03:19:11,984 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 03:19:11,984 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 03:19:11,984 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 03:19:12,054 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 03:19:12,069 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 03:19:12,072 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 03:19:12,074 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 03:19:12,074 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 03:19:12,075 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label38_true-unreach-call.c [2018-11-07 03:19:12,143 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2c4bff05/9e19048bf27a4786adf60ec85b27eb17/FLAGeee731e43 [2018-11-07 03:19:13,005 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 03:19:13,006 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label38_true-unreach-call.c [2018-11-07 03:19:13,043 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2c4bff05/9e19048bf27a4786adf60ec85b27eb17/FLAGeee731e43 [2018-11-07 03:19:13,062 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2c4bff05/9e19048bf27a4786adf60ec85b27eb17 [2018-11-07 03:19:13,075 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 03:19:13,076 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 03:19:13,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 03:19:13,078 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 03:19:13,082 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 03:19:13,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:19:13" (1/1) ... [2018-11-07 03:19:13,087 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f924bc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:19:13, skipping insertion in model container [2018-11-07 03:19:13,087 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:19:13" (1/1) ... [2018-11-07 03:19:13,099 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 03:19:13,279 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 03:19:14,848 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 03:19:14,854 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 03:19:15,549 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 03:19:15,586 INFO L193 MainTranslator]: Completed translation [2018-11-07 03:19:15,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:19:15 WrapperNode [2018-11-07 03:19:15,587 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 03:19:15,589 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 03:19:15,589 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 03:19:15,589 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 03:19:15,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:19:15" (1/1) ... [2018-11-07 03:19:15,964 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:19:15" (1/1) ... [2018-11-07 03:19:15,974 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 03:19:15,974 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 03:19:15,974 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 03:19:15,975 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 03:19:15,987 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:19:15" (1/1) ... [2018-11-07 03:19:15,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:19:15" (1/1) ... [2018-11-07 03:19:16,017 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:19:15" (1/1) ... [2018-11-07 03:19:16,018 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:19:15" (1/1) ... [2018-11-07 03:19:16,151 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:19:15" (1/1) ... [2018-11-07 03:19:16,192 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:19:15" (1/1) ... [2018-11-07 03:19:16,232 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:19:15" (1/1) ... [2018-11-07 03:19:16,264 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 03:19:16,265 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 03:19:16,265 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 03:19:16,266 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 03:19:16,266 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:19:15" (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 03:19:16,340 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 03:19:16,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 03:19:16,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 03:19:16,341 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-07 03:19:16,341 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-07 03:19:16,341 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 03:19:16,342 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 03:19:16,342 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 03:19:16,342 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 03:19:16,342 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 03:19:16,342 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 03:19:16,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 03:19:16,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 03:19:16,344 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 03:19:16,344 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 03:19:27,521 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 03:19:27,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:19:27 BoogieIcfgContainer [2018-11-07 03:19:27,522 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 03:19:27,523 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 03:19:27,524 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 03:19:27,527 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 03:19:27,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:19:13" (1/3) ... [2018-11-07 03:19:27,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@477b96b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:19:27, skipping insertion in model container [2018-11-07 03:19:27,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:19:15" (2/3) ... [2018-11-07 03:19:27,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@477b96b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:19:27, skipping insertion in model container [2018-11-07 03:19:27,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:19:27" (3/3) ... [2018-11-07 03:19:27,531 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label38_true-unreach-call.c [2018-11-07 03:19:27,541 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 03:19:27,551 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 03:19:27,570 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 03:19:27,620 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 03:19:27,620 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 03:19:27,620 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 03:19:27,620 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 03:19:27,621 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 03:19:27,621 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 03:19:27,621 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 03:19:27,621 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 03:19:27,664 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-11-07 03:19:27,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-11-07 03:19:27,674 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:19:27,675 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 03:19:27,678 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:19:27,684 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:19:27,685 INFO L82 PathProgramCache]: Analyzing trace with hash 437838356, now seen corresponding path program 1 times [2018-11-07 03:19:27,688 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:19:27,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:19:27,747 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:19:27,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:19:27,748 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:19:27,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:19:28,271 WARN L179 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 03:19:28,419 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 03:19:28,425 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:19:28,425 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 03:19:28,425 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:19:28,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 03:19:28,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 03:19:28,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 03:19:28,480 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-11-07 03:19:38,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:19:38,536 INFO L93 Difference]: Finished difference Result 3087 states and 5699 transitions. [2018-11-07 03:19:38,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 03:19:38,539 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66 [2018-11-07 03:19:38,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:19:38,576 INFO L225 Difference]: With dead ends: 3087 [2018-11-07 03:19:38,576 INFO L226 Difference]: Without dead ends: 1965 [2018-11-07 03:19:38,589 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 03:19:38,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1965 states. [2018-11-07 03:19:38,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1965 to 1959. [2018-11-07 03:19:38,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1959 states. [2018-11-07 03:19:38,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1959 states to 1959 states and 3512 transitions. [2018-11-07 03:19:38,770 INFO L78 Accepts]: Start accepts. Automaton has 1959 states and 3512 transitions. Word has length 66 [2018-11-07 03:19:38,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:19:38,771 INFO L480 AbstractCegarLoop]: Abstraction has 1959 states and 3512 transitions. [2018-11-07 03:19:38,774 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 03:19:38,774 INFO L276 IsEmpty]: Start isEmpty. Operand 1959 states and 3512 transitions. [2018-11-07 03:19:38,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-11-07 03:19:38,788 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:19:38,789 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 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 03:19:38,789 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:19:38,789 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:19:38,791 INFO L82 PathProgramCache]: Analyzing trace with hash 124498118, now seen corresponding path program 1 times [2018-11-07 03:19:38,791 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:19:38,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:19:38,793 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:19:38,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:19:38,794 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:19:38,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:19:39,192 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:19:39,192 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:19:39,192 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 03:19:39,193 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:19:39,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 03:19:39,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 03:19:39,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 03:19:39,195 INFO L87 Difference]: Start difference. First operand 1959 states and 3512 transitions. Second operand 6 states. [2018-11-07 03:19:51,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:19:51,547 INFO L93 Difference]: Finished difference Result 5634 states and 10287 transitions. [2018-11-07 03:19:51,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 03:19:51,551 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 143 [2018-11-07 03:19:51,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:19:51,584 INFO L225 Difference]: With dead ends: 5634 [2018-11-07 03:19:51,585 INFO L226 Difference]: Without dead ends: 3681 [2018-11-07 03:19:51,593 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 03:19:51,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3681 states. [2018-11-07 03:19:51,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3681 to 3650. [2018-11-07 03:19:51,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3650 states. [2018-11-07 03:19:51,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3650 states to 3650 states and 5957 transitions. [2018-11-07 03:19:51,707 INFO L78 Accepts]: Start accepts. Automaton has 3650 states and 5957 transitions. Word has length 143 [2018-11-07 03:19:51,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:19:51,707 INFO L480 AbstractCegarLoop]: Abstraction has 3650 states and 5957 transitions. [2018-11-07 03:19:51,708 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 03:19:51,708 INFO L276 IsEmpty]: Start isEmpty. Operand 3650 states and 5957 transitions. [2018-11-07 03:19:51,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2018-11-07 03:19:51,714 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:19:51,714 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:19:51,714 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:19:51,715 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:19:51,715 INFO L82 PathProgramCache]: Analyzing trace with hash -738024772, now seen corresponding path program 1 times [2018-11-07 03:19:51,715 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:19:51,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:19:51,716 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:19:51,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:19:51,716 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:19:51,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:19:52,121 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:19:52,122 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:19:52,122 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 03:19:52,122 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:19:52,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 03:19:52,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 03:19:52,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 03:19:52,123 INFO L87 Difference]: Start difference. First operand 3650 states and 5957 transitions. Second operand 6 states. [2018-11-07 03:20:02,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:20:02,951 INFO L93 Difference]: Finished difference Result 12385 states and 20601 transitions. [2018-11-07 03:20:02,954 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 03:20:02,954 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2018-11-07 03:20:02,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:20:03,001 INFO L225 Difference]: With dead ends: 12385 [2018-11-07 03:20:03,002 INFO L226 Difference]: Without dead ends: 8741 [2018-11-07 03:20:03,023 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 03:20:03,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8741 states. [2018-11-07 03:20:03,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8741 to 8684. [2018-11-07 03:20:03,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8684 states. [2018-11-07 03:20:03,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8684 states to 8684 states and 12864 transitions. [2018-11-07 03:20:03,249 INFO L78 Accepts]: Start accepts. Automaton has 8684 states and 12864 transitions. Word has length 162 [2018-11-07 03:20:03,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:20:03,249 INFO L480 AbstractCegarLoop]: Abstraction has 8684 states and 12864 transitions. [2018-11-07 03:20:03,249 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 03:20:03,250 INFO L276 IsEmpty]: Start isEmpty. Operand 8684 states and 12864 transitions. [2018-11-07 03:20:03,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-11-07 03:20:03,254 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:20:03,254 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:20:03,255 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:20:03,255 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:20:03,255 INFO L82 PathProgramCache]: Analyzing trace with hash -645382492, now seen corresponding path program 1 times [2018-11-07 03:20:03,255 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:20:03,256 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:20:03,256 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:20:03,256 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:20:03,257 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:20:03,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:20:03,578 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:20:03,578 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:20:03,578 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 03:20:03,578 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:20:03,579 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 03:20:03,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 03:20:03,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 03:20:03,580 INFO L87 Difference]: Start difference. First operand 8684 states and 12864 transitions. Second operand 6 states. [2018-11-07 03:20:13,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:20:13,954 INFO L93 Difference]: Finished difference Result 22909 states and 34919 transitions. [2018-11-07 03:20:13,957 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 03:20:13,957 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 174 [2018-11-07 03:20:13,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:20:14,034 INFO L225 Difference]: With dead ends: 22909 [2018-11-07 03:20:14,035 INFO L226 Difference]: Without dead ends: 14231 [2018-11-07 03:20:14,072 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 03:20:14,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14231 states. [2018-11-07 03:20:14,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14231 to 14057. [2018-11-07 03:20:14,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14057 states. [2018-11-07 03:20:14,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14057 states to 14057 states and 19960 transitions. [2018-11-07 03:20:14,411 INFO L78 Accepts]: Start accepts. Automaton has 14057 states and 19960 transitions. Word has length 174 [2018-11-07 03:20:14,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:20:14,412 INFO L480 AbstractCegarLoop]: Abstraction has 14057 states and 19960 transitions. [2018-11-07 03:20:14,412 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 03:20:14,412 INFO L276 IsEmpty]: Start isEmpty. Operand 14057 states and 19960 transitions. [2018-11-07 03:20:14,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2018-11-07 03:20:14,421 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:20:14,422 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 03:20:14,422 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:20:14,422 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:20:14,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1546539748, now seen corresponding path program 1 times [2018-11-07 03:20:14,423 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:20:14,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:20:14,424 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:20:14,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:20:14,424 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:20:14,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:20:14,904 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 118 proven. 67 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 03:20:14,906 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 03:20:14,906 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 03:20:14,907 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 230 with the following transitions: [2018-11-07 03:20:14,911 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2987], [2995], [3003], [3011], [3019], [3027], [3035], [3043], [3051], [3055], [3057], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3128], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3225], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-11-07 03:20:15,004 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 03:20:15,004 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 03:20:19,332 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 03:20:19,333 INFO L272 AbstractInterpreter]: Visited 96 different actions 96 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-11-07 03:20:19,357 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:20:19,357 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 03:20:24,209 INFO L227 lantSequenceWeakener]: Weakened 208 states. On average, predicates are now at 72.04% of their original sizes. [2018-11-07 03:20:24,209 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 03:20:25,966 INFO L415 sIntCurrentIteration]: We unified 228 AI predicates to 228 [2018-11-07 03:20:25,966 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 03:20:25,967 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 03:20:25,968 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [5] total 13 [2018-11-07 03:20:25,968 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:20:25,969 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-07 03:20:25,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-07 03:20:25,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-11-07 03:20:25,970 INFO L87 Difference]: Start difference. First operand 14057 states and 19960 transitions. Second operand 10 states. [2018-11-07 03:20:48,127 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-07 03:22:52,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-07 03:22:52,757 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 03:22:52,762 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 03:22:52,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 03:22:52 BoogieIcfgContainer [2018-11-07 03:22:52,762 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 03:22:52,763 INFO L168 Benchmark]: Toolchain (without parser) took 219687.92 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.3 GB in the end (delta: -1.9 GB). Peak memory consumption was 814.1 MB. Max. memory is 7.1 GB. [2018-11-07 03:22:52,765 INFO L168 Benchmark]: CDTParser took 0.18 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 03:22:52,765 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2510.49 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 243.1 MB). Peak memory consumption was 243.1 MB. Max. memory is 7.1 GB. [2018-11-07 03:22:52,766 INFO L168 Benchmark]: Boogie Procedure Inliner took 385.32 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 808.5 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 67.7 MB. Max. memory is 7.1 GB. [2018-11-07 03:22:52,767 INFO L168 Benchmark]: Boogie Preprocessor took 290.63 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: 36.7 MB). Peak memory consumption was 36.7 MB. Max. memory is 7.1 GB. [2018-11-07 03:22:52,768 INFO L168 Benchmark]: RCFGBuilder took 11257.38 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 159.9 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 27.2 MB). Peak memory consumption was 664.4 MB. Max. memory is 7.1 GB. [2018-11-07 03:22:52,769 INFO L168 Benchmark]: TraceAbstraction took 205239.04 ms. Allocated memory was 2.5 GB in the beginning and 4.2 GB in the end (delta: 1.7 GB). Free memory was 2.2 GB in the beginning and 3.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 656.8 MB. Max. memory is 7.1 GB. [2018-11-07 03:22:52,775 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 2510.49 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 243.1 MB). Peak memory consumption was 243.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 385.32 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 808.5 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 67.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 290.63 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: 36.7 MB). Peak memory consumption was 36.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11257.38 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 159.9 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 27.2 MB). Peak memory consumption was 664.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 205239.04 ms. Allocated memory was 2.5 GB in the beginning and 4.2 GB in the end (delta: 1.7 GB). Free memory was 2.2 GB in the beginning and 3.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 656.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 189]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 189). Cancelled while BasicCegarLoop was constructing difference of abstraction (14057states) and FLOYD_HOARE automaton (currently 9 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (6659 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 205.1s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 190.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2257 SDtfs, 17076 SDslu, 1858 SDs, 0 SdLazy, 21100 SolverSat, 6496 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 143.7s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 267 GetRequests, 229 SyntacticMatches, 5 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14057occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 4.4s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9957489878542509 AbsIntWeakeningRatio, 0.11842105263157894 AbsIntAvgWeakeningVarsNumRemoved, 28.644736842105264 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 4 MinimizatonAttempts, 268 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 774 NumberOfCodeBlocks, 774 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 769 ConstructedInterpolants, 0 QuantifiedInterpolants, 436160 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 300/367 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown