java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label21_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-24 02:03:25,642 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 02:03:25,644 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 02:03:25,657 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 02:03:25,658 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 02:03:25,659 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 02:03:25,660 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 02:03:25,662 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 02:03:25,664 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 02:03:25,665 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 02:03:25,666 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 02:03:25,666 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 02:03:25,667 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 02:03:25,668 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 02:03:25,669 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 02:03:25,670 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 02:03:25,671 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 02:03:25,673 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 02:03:25,675 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 02:03:25,677 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 02:03:25,678 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 02:03:25,679 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 02:03:25,682 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 02:03:25,692 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 02:03:25,708 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 02:03:25,708 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 02:03:25,709 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 02:03:25,710 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 02:03:25,710 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 02:03:25,710 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 02:03:25,710 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 02:03:25,711 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 02:03:25,711 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 02:03:25,711 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 02:03:25,711 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 02:03:25,712 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 02:03:25,713 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 02:03:25,713 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 02:03:25,713 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 02:03:25,713 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 02:03:25,714 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 02:03:25,714 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 02:03:25,714 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 02:03:25,714 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 02:03:25,715 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 02:03:25,715 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 02:03:25,715 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 02:03:25,715 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 02:03:25,716 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 02:03:25,716 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 02:03:25,716 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 02:03:25,716 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 02:03:25,717 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 02:03:25,717 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 02:03:25,717 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 02:03:25,717 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 02:03:25,717 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 02:03:25,718 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 02:03:25,771 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 02:03:25,792 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 02:03:25,797 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 02:03:25,798 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 02:03:25,798 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 02:03:25,799 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label21_true-unreach-call.c [2018-10-24 02:03:25,859 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7433d7371/fba69903db764815b603ba16432d5cb5/FLAG9b8d2d2e0 [2018-10-24 02:03:26,574 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 02:03:26,575 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label21_true-unreach-call.c [2018-10-24 02:03:26,605 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7433d7371/fba69903db764815b603ba16432d5cb5/FLAG9b8d2d2e0 [2018-10-24 02:03:26,628 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7433d7371/fba69903db764815b603ba16432d5cb5 [2018-10-24 02:03:26,641 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 02:03:26,643 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 02:03:26,644 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 02:03:26,645 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 02:03:26,652 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 02:03:26,654 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:03:26" (1/1) ... [2018-10-24 02:03:26,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b9d0a52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:03:26, skipping insertion in model container [2018-10-24 02:03:26,659 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:03:26" (1/1) ... [2018-10-24 02:03:26,671 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 02:03:26,804 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 02:03:27,933 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 02:03:27,938 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 02:03:28,378 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 02:03:28,405 INFO L193 MainTranslator]: Completed translation [2018-10-24 02:03:28,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:03:28 WrapperNode [2018-10-24 02:03:28,406 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 02:03:28,407 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 02:03:28,407 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 02:03:28,407 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 02:03:28,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:03:28" (1/1) ... [2018-10-24 02:03:28,491 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:03:28" (1/1) ... [2018-10-24 02:03:28,887 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 02:03:28,887 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 02:03:28,887 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 02:03:28,888 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 02:03:28,900 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:03:28" (1/1) ... [2018-10-24 02:03:28,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:03:28" (1/1) ... [2018-10-24 02:03:28,952 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:03:28" (1/1) ... [2018-10-24 02:03:28,953 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:03:28" (1/1) ... [2018-10-24 02:03:29,067 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:03:28" (1/1) ... [2018-10-24 02:03:29,104 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:03:28" (1/1) ... [2018-10-24 02:03:29,148 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:03:28" (1/1) ... [2018-10-24 02:03:29,207 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 02:03:29,207 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 02:03:29,207 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 02:03:29,208 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 02:03:29,208 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:03:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 02:03:29,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 02:03:29,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 02:03:29,276 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 02:03:29,276 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 02:03:29,276 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 02:03:29,277 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 02:03:29,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 02:03:29,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 02:03:29,277 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 02:03:29,277 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 02:03:43,077 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 02:03:43,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:03:43 BoogieIcfgContainer [2018-10-24 02:03:43,079 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 02:03:43,081 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 02:03:43,081 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 02:03:43,085 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 02:03:43,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:03:26" (1/3) ... [2018-10-24 02:03:43,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dc4c265 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:03:43, skipping insertion in model container [2018-10-24 02:03:43,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:03:28" (2/3) ... [2018-10-24 02:03:43,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dc4c265 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:03:43, skipping insertion in model container [2018-10-24 02:03:43,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:03:43" (3/3) ... [2018-10-24 02:03:43,089 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label21_true-unreach-call.c [2018-10-24 02:03:43,100 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 02:03:43,109 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 02:03:43,124 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 02:03:43,172 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 02:03:43,172 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 02:03:43,172 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 02:03:43,172 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 02:03:43,172 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 02:03:43,172 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 02:03:43,173 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 02:03:43,173 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 02:03:43,216 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-10-24 02:03:43,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-10-24 02:03:43,230 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:03:43,231 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] [2018-10-24 02:03:43,234 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:03:43,242 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:03:43,243 INFO L82 PathProgramCache]: Analyzing trace with hash 1861558100, now seen corresponding path program 1 times [2018-10-24 02:03:43,246 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:03:43,305 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:03:43,305 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:03:43,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:03:43,306 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:03:43,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:03:43,816 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-10-24 02:03:43,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 02:03:43,846 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 02:03:43,846 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 02:03:43,847 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:03:43,853 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 02:03:43,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 02:03:43,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 02:03:43,874 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-10-24 02:03:55,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:03:55,655 INFO L93 Difference]: Finished difference Result 2166 states and 4013 transitions. [2018-10-24 02:03:55,656 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 02:03:55,657 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 66 [2018-10-24 02:03:55,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:03:55,694 INFO L225 Difference]: With dead ends: 2166 [2018-10-24 02:03:55,694 INFO L226 Difference]: Without dead ends: 1556 [2018-10-24 02:03:55,708 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 02:03:55,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1556 states. [2018-10-24 02:03:55,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1556 to 1068. [2018-10-24 02:03:55,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1068 states. [2018-10-24 02:03:55,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1850 transitions. [2018-10-24 02:03:55,849 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1850 transitions. Word has length 66 [2018-10-24 02:03:55,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:03:55,851 INFO L481 AbstractCegarLoop]: Abstraction has 1068 states and 1850 transitions. [2018-10-24 02:03:55,851 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 02:03:55,851 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1850 transitions. [2018-10-24 02:03:55,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-10-24 02:03:55,863 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:03:55,863 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] [2018-10-24 02:03:55,864 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:03:55,864 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:03:55,864 INFO L82 PathProgramCache]: Analyzing trace with hash -436141222, now seen corresponding path program 1 times [2018-10-24 02:03:55,864 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:03:55,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:03:55,866 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:03:55,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:03:55,866 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:03:55,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:03:56,151 WARN L179 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 02:03:56,244 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 02:03:56,245 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 02:03:56,245 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 02:03:56,245 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:03:56,247 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 02:03:56,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 02:03:56,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 02:03:56,248 INFO L87 Difference]: Start difference. First operand 1068 states and 1850 transitions. Second operand 6 states. [2018-10-24 02:04:07,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:04:07,618 INFO L93 Difference]: Finished difference Result 3059 states and 5419 transitions. [2018-10-24 02:04:07,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 02:04:07,630 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 142 [2018-10-24 02:04:07,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:04:07,646 INFO L225 Difference]: With dead ends: 3059 [2018-10-24 02:04:07,646 INFO L226 Difference]: Without dead ends: 1997 [2018-10-24 02:04:07,651 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 02:04:07,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1997 states. [2018-10-24 02:04:07,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1997 to 1975. [2018-10-24 02:04:07,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1975 states. [2018-10-24 02:04:07,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1975 states to 1975 states and 3181 transitions. [2018-10-24 02:04:07,728 INFO L78 Accepts]: Start accepts. Automaton has 1975 states and 3181 transitions. Word has length 142 [2018-10-24 02:04:07,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:04:07,729 INFO L481 AbstractCegarLoop]: Abstraction has 1975 states and 3181 transitions. [2018-10-24 02:04:07,729 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 02:04:07,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1975 states and 3181 transitions. [2018-10-24 02:04:07,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-10-24 02:04:07,736 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:04:07,736 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] [2018-10-24 02:04:07,737 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:04:07,737 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:04:07,737 INFO L82 PathProgramCache]: Analyzing trace with hash -1261890222, now seen corresponding path program 1 times [2018-10-24 02:04:07,737 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:04:07,738 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:04:07,739 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:04:07,739 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:04:07,739 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:04:07,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:04:08,028 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 02:04:08,028 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 02:04:08,029 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 02:04:08,029 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:04:08,030 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 02:04:08,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 02:04:08,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 02:04:08,030 INFO L87 Difference]: Start difference. First operand 1975 states and 3181 transitions. Second operand 6 states. [2018-10-24 02:04:13,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:04:13,405 INFO L93 Difference]: Finished difference Result 4880 states and 7834 transitions. [2018-10-24 02:04:13,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 02:04:13,409 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 146 [2018-10-24 02:04:13,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:04:13,427 INFO L225 Difference]: With dead ends: 4880 [2018-10-24 02:04:13,427 INFO L226 Difference]: Without dead ends: 2911 [2018-10-24 02:04:13,436 INFO L605 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 [2018-10-24 02:04:13,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2911 states. [2018-10-24 02:04:13,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2911 to 2880. [2018-10-24 02:04:13,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2880 states. [2018-10-24 02:04:13,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2880 states to 2880 states and 3936 transitions. [2018-10-24 02:04:13,524 INFO L78 Accepts]: Start accepts. Automaton has 2880 states and 3936 transitions. Word has length 146 [2018-10-24 02:04:13,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:04:13,525 INFO L481 AbstractCegarLoop]: Abstraction has 2880 states and 3936 transitions. [2018-10-24 02:04:13,525 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 02:04:13,525 INFO L276 IsEmpty]: Start isEmpty. Operand 2880 states and 3936 transitions. [2018-10-24 02:04:13,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-10-24 02:04:13,529 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:04:13,529 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, 1, 1] [2018-10-24 02:04:13,529 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:04:13,530 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:04:13,530 INFO L82 PathProgramCache]: Analyzing trace with hash -1548926097, now seen corresponding path program 1 times [2018-10-24 02:04:13,530 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:04:13,531 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:04:13,531 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:04:13,531 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:04:13,531 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:04:13,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:04:13,789 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 02:04:13,790 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 02:04:13,790 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 02:04:13,790 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:04:13,791 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 02:04:13,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 02:04:13,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 02:04:13,793 INFO L87 Difference]: Start difference. First operand 2880 states and 3936 transitions. Second operand 4 states. [2018-10-24 02:04:19,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:04:19,189 INFO L93 Difference]: Finished difference Result 5754 states and 7882 transitions. [2018-10-24 02:04:19,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 02:04:19,190 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 176 [2018-10-24 02:04:19,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:04:19,203 INFO L225 Difference]: With dead ends: 5754 [2018-10-24 02:04:19,203 INFO L226 Difference]: Without dead ends: 2880 [2018-10-24 02:04:19,215 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 02:04:19,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2880 states. [2018-10-24 02:04:19,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2880 to 2880. [2018-10-24 02:04:19,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2880 states. [2018-10-24 02:04:19,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2880 states to 2880 states and 3720 transitions. [2018-10-24 02:04:19,282 INFO L78 Accepts]: Start accepts. Automaton has 2880 states and 3720 transitions. Word has length 176 [2018-10-24 02:04:19,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:04:19,283 INFO L481 AbstractCegarLoop]: Abstraction has 2880 states and 3720 transitions. [2018-10-24 02:04:19,283 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 02:04:19,283 INFO L276 IsEmpty]: Start isEmpty. Operand 2880 states and 3720 transitions. [2018-10-24 02:04:19,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2018-10-24 02:04:19,287 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:04:19,288 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, 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] [2018-10-24 02:04:19,288 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:04:19,288 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:04:19,289 INFO L82 PathProgramCache]: Analyzing trace with hash -639298360, now seen corresponding path program 1 times [2018-10-24 02:04:19,289 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:04:19,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:04:19,290 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:04:19,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:04:19,290 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:04:19,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:04:19,607 WARN L179 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-10-24 02:04:19,651 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-10-24 02:04:19,652 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 02:04:19,652 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 02:04:19,652 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:04:19,653 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 02:04:19,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 02:04:19,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 02:04:19,654 INFO L87 Difference]: Start difference. First operand 2880 states and 3720 transitions. Second operand 4 states. [2018-10-24 02:04:29,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:04:29,057 INFO L93 Difference]: Finished difference Result 11049 states and 14698 transitions. [2018-10-24 02:04:29,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 02:04:29,061 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 230 [2018-10-24 02:04:29,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:04:29,093 INFO L225 Difference]: With dead ends: 11049 [2018-10-24 02:04:29,093 INFO L226 Difference]: Without dead ends: 8175 [2018-10-24 02:04:29,104 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 02:04:29,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8175 states. [2018-10-24 02:04:29,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8175 to 8171. [2018-10-24 02:04:29,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8171 states. [2018-10-24 02:04:29,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8171 states to 8171 states and 9880 transitions. [2018-10-24 02:04:29,305 INFO L78 Accepts]: Start accepts. Automaton has 8171 states and 9880 transitions. Word has length 230 [2018-10-24 02:04:29,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:04:29,306 INFO L481 AbstractCegarLoop]: Abstraction has 8171 states and 9880 transitions. [2018-10-24 02:04:29,306 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 02:04:29,306 INFO L276 IsEmpty]: Start isEmpty. Operand 8171 states and 9880 transitions. [2018-10-24 02:04:29,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2018-10-24 02:04:29,314 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:04:29,314 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, 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] [2018-10-24 02:04:29,315 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:04:29,315 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:04:29,315 INFO L82 PathProgramCache]: Analyzing trace with hash -1380574037, now seen corresponding path program 1 times [2018-10-24 02:04:29,315 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:04:29,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:04:29,316 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:04:29,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:04:29,317 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:04:29,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:04:29,901 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 118 proven. 72 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 02:04:29,901 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 02:04:29,901 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 02:04:29,903 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 254 with the following transitions: [2018-10-24 02:04:29,905 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1046], [1054], [1062], [1070], [1078], [1086], [1094], [1102], [1110], [1118], [1126], [1134], [1138], [1140], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1231], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1283], [1287], [1291], [1295], [1299], [1303], [1307], [1318], [1322], [1326], [1330], [1334], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-24 02:04:29,984 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 02:04:29,984 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 02:04:32,590 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 02:04:33,009 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 02:04:33,011 INFO L272 AbstractInterpreter]: Visited 115 different actions 115 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-24 02:04:33,054 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:04:33,055 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 02:04:35,803 INFO L232 lantSequenceWeakener]: Weakened 245 states. On average, predicates are now at 75.85% of their original sizes. [2018-10-24 02:04:35,804 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 02:04:36,438 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 02:04:36,439 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 02:04:36,439 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2018-10-24 02:04:36,439 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:04:36,440 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-24 02:04:36,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-24 02:04:36,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-10-24 02:04:36,441 INFO L87 Difference]: Start difference. First operand 8171 states and 9880 transitions. Second operand 8 states. [2018-10-24 02:06:30,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:06:30,174 INFO L93 Difference]: Finished difference Result 16772 states and 20222 transitions. [2018-10-24 02:06:30,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 02:06:30,174 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 253 [2018-10-24 02:06:30,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:06:30,203 INFO L225 Difference]: With dead ends: 16772 [2018-10-24 02:06:30,204 INFO L226 Difference]: Without dead ends: 8607 [2018-10-24 02:06:30,220 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 254 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-24 02:06:30,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8607 states. [2018-10-24 02:06:30,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8607 to 8605. [2018-10-24 02:06:30,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8605 states. [2018-10-24 02:06:30,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8605 states to 8605 states and 10325 transitions. [2018-10-24 02:06:30,415 INFO L78 Accepts]: Start accepts. Automaton has 8605 states and 10325 transitions. Word has length 253 [2018-10-24 02:06:30,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:06:30,415 INFO L481 AbstractCegarLoop]: Abstraction has 8605 states and 10325 transitions. [2018-10-24 02:06:30,415 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-24 02:06:30,415 INFO L276 IsEmpty]: Start isEmpty. Operand 8605 states and 10325 transitions. [2018-10-24 02:06:30,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2018-10-24 02:06:30,426 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:06:30,427 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 02:06:30,427 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:06:30,427 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:06:30,428 INFO L82 PathProgramCache]: Analyzing trace with hash 757180591, now seen corresponding path program 1 times [2018-10-24 02:06:30,428 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:06:30,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:06:30,429 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:06:30,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:06:30,429 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:06:30,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:06:30,892 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-10-24 02:06:30,892 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 02:06:30,892 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 02:06:30,892 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:06:30,893 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 02:06:30,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 02:06:30,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 02:06:30,894 INFO L87 Difference]: Start difference. First operand 8605 states and 10325 transitions. Second operand 4 states. [2018-10-24 02:06:39,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:06:39,119 INFO L93 Difference]: Finished difference Result 22089 states and 27084 transitions. [2018-10-24 02:06:39,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 02:06:39,119 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 296 [2018-10-24 02:06:39,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:06:39,180 INFO L225 Difference]: With dead ends: 22089 [2018-10-24 02:06:39,180 INFO L226 Difference]: Without dead ends: 13924 [2018-10-24 02:06:39,212 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 02:06:39,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13924 states. [2018-10-24 02:06:39,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13924 to 13912. [2018-10-24 02:06:39,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13912 states. [2018-10-24 02:06:39,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13912 states to 13912 states and 16479 transitions. [2018-10-24 02:06:39,606 INFO L78 Accepts]: Start accepts. Automaton has 13912 states and 16479 transitions. Word has length 296 [2018-10-24 02:06:39,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:06:39,607 INFO L481 AbstractCegarLoop]: Abstraction has 13912 states and 16479 transitions. [2018-10-24 02:06:39,607 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 02:06:39,607 INFO L276 IsEmpty]: Start isEmpty. Operand 13912 states and 16479 transitions. [2018-10-24 02:06:39,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2018-10-24 02:06:39,620 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:06:39,620 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 02:06:39,620 INFO L424 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:06:39,621 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:06:39,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1570509174, now seen corresponding path program 1 times [2018-10-24 02:06:39,621 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:06:39,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:06:39,622 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:06:39,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:06:39,622 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:06:39,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:06:40,206 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 187 proven. 142 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-10-24 02:06:40,206 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 02:06:40,206 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 02:06:40,207 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 306 with the following transitions: [2018-10-24 02:06:40,207 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1046], [1054], [1062], [1070], [1078], [1086], [1094], [1102], [1110], [1118], [1126], [1134], [1138], [1140], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [1224], [1227], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-24 02:06:40,214 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 02:06:40,214 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 02:06:40,804 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-24 02:07:16,435 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-10-24 02:07:16,436 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-10-24 02:07:16,438 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-24 02:07:16,438 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 02:07:16,438 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 02:07:16,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:07:16,449 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 02:07:16,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:07:16,575 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 02:07:16,593 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-24 02:07:16,794 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 02:07:16,794 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 02:07:16,800 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 02:07:16,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:07:16 BoogieIcfgContainer [2018-10-24 02:07:16,800 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 02:07:16,801 INFO L168 Benchmark]: Toolchain (without parser) took 230159.15 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 145.0 MB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. [2018-10-24 02:07:16,802 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 02:07:16,803 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1762.01 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: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. [2018-10-24 02:07:16,804 INFO L168 Benchmark]: Boogie Procedure Inliner took 479.81 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 746.6 MB). Free memory was 1.2 GB in the beginning and 2.1 GB in the end (delta: -896.4 MB). Peak memory consumption was 56.3 MB. Max. memory is 7.1 GB. [2018-10-24 02:07:16,805 INFO L168 Benchmark]: Boogie Preprocessor took 319.74 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 7.1 GB. [2018-10-24 02:07:16,805 INFO L168 Benchmark]: RCFGBuilder took 13872.72 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 466.7 MB). Peak memory consumption was 466.7 MB. Max. memory is 7.1 GB. [2018-10-24 02:07:16,806 INFO L168 Benchmark]: TraceAbstraction took 213719.10 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 1.6 GB in the beginning and 1.2 GB in the end (delta: 408.2 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2018-10-24 02:07:16,812 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1762.01 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: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 479.81 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 746.6 MB). Free memory was 1.2 GB in the beginning and 2.1 GB in the end (delta: -896.4 MB). Peak memory consumption was 56.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 319.74 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 13872.72 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 466.7 MB). Peak memory consumption was 466.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 213719.10 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 1.6 GB in the beginning and 1.2 GB in the end (delta: 408.2 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 185]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 185). Cancelled while BasicCegarLoop was analyzing trace of length 306 with TraceHistMax 4,while TraceCheckSpWp was constructing forward predicates,while XnfDer was eliminating 1 quantified variables from 2 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 213.6s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 165.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3735 SDtfs, 8714 SDslu, 1775 SDs, 0 SdLazy, 16810 SolverSat, 3444 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 127.4s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 295 GetRequests, 263 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13912occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 39.3s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 0.9961538461538461 AbsIntWeakeningRatio, 0.10714285714285714 AbsIntAvgWeakeningVarsNumRemoved, 1053.9484126984128 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 559 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 1309 NumberOfCodeBlocks, 1309 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1302 ConstructedInterpolants, 0 QuantifiedInterpolants, 948345 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 700/772 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown