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/Problem15_label57_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 21:53:17,628 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 21:53:17,630 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 21:53:17,642 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 21:53:17,642 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 21:53:17,643 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 21:53:17,645 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 21:53:17,647 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 21:53:17,648 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 21:53:17,649 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 21:53:17,650 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 21:53:17,650 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 21:53:17,651 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 21:53:17,652 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 21:53:17,653 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 21:53:17,654 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 21:53:17,655 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 21:53:17,657 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 21:53:17,659 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 21:53:17,660 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 21:53:17,662 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 21:53:17,663 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 21:53:17,665 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 21:53:17,672 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 21:53:17,672 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 21:53:17,673 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 21:53:17,674 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 21:53:17,674 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 21:53:17,695 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 21:53:17,695 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 21:53:17,696 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 21:53:17,696 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 21:53:17,700 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 21:53:17,700 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 21:53:17,700 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 21:53:17,700 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 21:53:17,701 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 21:53:17,701 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 21:53:17,701 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 21:53:17,701 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 21:53:17,703 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 21:53:17,703 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 21:53:17,704 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 21:53:17,704 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 21:53:17,704 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 21:53:17,704 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 21:53:17,704 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 21:53:17,705 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 21:53:17,706 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 21:53:17,706 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 21:53:17,706 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 21:53:17,706 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 21:53:17,707 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 21:53:17,707 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 21:53:17,707 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 21:53:17,707 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 21:53:17,707 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 21:53:17,708 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 21:53:17,708 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 21:53:17,708 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 21:53:17,708 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 21:53:17,708 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 21:53:17,780 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 21:53:17,795 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 21:53:17,799 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 21:53:17,801 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 21:53:17,801 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 21:53:17,802 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label57_true-unreach-call.c [2018-10-24 21:53:17,862 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/687d7b382/4d3c768e04ca4e8c8642714337f603c7/FLAGa7d2d37c3 [2018-10-24 21:53:18,552 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 21:53:18,553 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label57_true-unreach-call.c [2018-10-24 21:53:18,576 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/687d7b382/4d3c768e04ca4e8c8642714337f603c7/FLAGa7d2d37c3 [2018-10-24 21:53:18,595 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/687d7b382/4d3c768e04ca4e8c8642714337f603c7 [2018-10-24 21:53:18,609 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 21:53:18,611 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 21:53:18,612 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 21:53:18,613 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 21:53:18,620 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 21:53:18,621 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:53:18" (1/1) ... [2018-10-24 21:53:18,625 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@769a0e85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:53:18, skipping insertion in model container [2018-10-24 21:53:18,625 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:53:18" (1/1) ... [2018-10-24 21:53:18,635 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 21:53:18,736 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 21:53:19,592 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:53:19,597 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 21:53:19,952 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:53:19,972 INFO L193 MainTranslator]: Completed translation [2018-10-24 21:53:19,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:53:19 WrapperNode [2018-10-24 21:53:19,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 21:53:19,974 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 21:53:19,974 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 21:53:19,974 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 21:53:19,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:53:19" (1/1) ... [2018-10-24 21:53:20,024 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:53:19" (1/1) ... [2018-10-24 21:53:20,336 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 21:53:20,337 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 21:53:20,337 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 21:53:20,337 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 21:53:20,349 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:53:19" (1/1) ... [2018-10-24 21:53:20,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:53:19" (1/1) ... [2018-10-24 21:53:20,366 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:53:19" (1/1) ... [2018-10-24 21:53:20,367 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:53:19" (1/1) ... [2018-10-24 21:53:20,441 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:53:19" (1/1) ... [2018-10-24 21:53:20,457 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:53:19" (1/1) ... [2018-10-24 21:53:20,502 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:53:19" (1/1) ... [2018-10-24 21:53:20,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 21:53:20,543 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 21:53:20,543 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 21:53:20,543 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 21:53:20,544 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:53:19" (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 21:53:20,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 21:53:20,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 21:53:20,616 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 21:53:20,616 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 21:53:20,616 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 21:53:20,616 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 21:53:20,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 21:53:20,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 21:53:20,617 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 21:53:20,617 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 21:53:28,097 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 21:53:28,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:53:28 BoogieIcfgContainer [2018-10-24 21:53:28,099 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 21:53:28,100 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 21:53:28,100 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 21:53:28,104 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 21:53:28,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:53:18" (1/3) ... [2018-10-24 21:53:28,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4213d55c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:53:28, skipping insertion in model container [2018-10-24 21:53:28,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:53:19" (2/3) ... [2018-10-24 21:53:28,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4213d55c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:53:28, skipping insertion in model container [2018-10-24 21:53:28,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:53:28" (3/3) ... [2018-10-24 21:53:28,108 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label57_true-unreach-call.c [2018-10-24 21:53:28,119 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 21:53:28,129 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 21:53:28,147 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 21:53:28,190 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 21:53:28,190 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 21:53:28,190 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 21:53:28,190 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 21:53:28,191 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 21:53:28,191 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 21:53:28,191 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 21:53:28,191 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 21:53:28,224 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-10-24 21:53:28,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-10-24 21:53:28,234 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:53:28,236 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] [2018-10-24 21:53:28,238 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:53:28,245 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:53:28,245 INFO L82 PathProgramCache]: Analyzing trace with hash -1926433044, now seen corresponding path program 1 times [2018-10-24 21:53:28,247 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:53:28,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:53:28,304 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:53:28,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:53:28,304 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:53:28,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:53:28,803 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 21:53:28,806 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:53:28,807 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 21:53:28,807 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:53:28,814 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 21:53:28,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 21:53:28,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:53:28,835 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-10-24 21:53:37,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:53:37,947 INFO L93 Difference]: Finished difference Result 1550 states and 2835 transitions. [2018-10-24 21:53:37,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 21:53:37,949 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 48 [2018-10-24 21:53:37,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:53:37,977 INFO L225 Difference]: With dead ends: 1550 [2018-10-24 21:53:37,977 INFO L226 Difference]: Without dead ends: 1106 [2018-10-24 21:53:37,989 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:53:38,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2018-10-24 21:53:38,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 762. [2018-10-24 21:53:38,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 762 states. [2018-10-24 21:53:38,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 1263 transitions. [2018-10-24 21:53:38,102 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 1263 transitions. Word has length 48 [2018-10-24 21:53:38,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:53:38,103 INFO L481 AbstractCegarLoop]: Abstraction has 762 states and 1263 transitions. [2018-10-24 21:53:38,103 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 21:53:38,103 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 1263 transitions. [2018-10-24 21:53:38,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-10-24 21:53:38,110 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:53:38,110 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:53:38,111 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:53:38,111 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:53:38,111 INFO L82 PathProgramCache]: Analyzing trace with hash -45753950, now seen corresponding path program 1 times [2018-10-24 21:53:38,112 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:53:38,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:53:38,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:53:38,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:53:38,113 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:53:38,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:53:38,429 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:53:38,430 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:53:38,430 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 21:53:38,430 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:53:38,432 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 21:53:38,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 21:53:38,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 21:53:38,433 INFO L87 Difference]: Start difference. First operand 762 states and 1263 transitions. Second operand 5 states. [2018-10-24 21:53:45,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:53:45,910 INFO L93 Difference]: Finished difference Result 2245 states and 3758 transitions. [2018-10-24 21:53:45,911 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 21:53:45,911 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 121 [2018-10-24 21:53:45,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:53:45,925 INFO L225 Difference]: With dead ends: 2245 [2018-10-24 21:53:45,925 INFO L226 Difference]: Without dead ends: 1489 [2018-10-24 21:53:45,931 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 21:53:45,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1489 states. [2018-10-24 21:53:46,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1489 to 1457. [2018-10-24 21:53:46,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1457 states. [2018-10-24 21:53:46,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1457 states to 1457 states and 2152 transitions. [2018-10-24 21:53:46,018 INFO L78 Accepts]: Start accepts. Automaton has 1457 states and 2152 transitions. Word has length 121 [2018-10-24 21:53:46,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:53:46,020 INFO L481 AbstractCegarLoop]: Abstraction has 1457 states and 2152 transitions. [2018-10-24 21:53:46,020 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 21:53:46,020 INFO L276 IsEmpty]: Start isEmpty. Operand 1457 states and 2152 transitions. [2018-10-24 21:53:46,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-10-24 21:53:46,025 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:53:46,025 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:53:46,027 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:53:46,027 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:53:46,028 INFO L82 PathProgramCache]: Analyzing trace with hash 935470738, now seen corresponding path program 1 times [2018-10-24 21:53:46,028 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:53:46,029 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:53:46,030 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:53:46,031 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:53:46,031 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:53:46,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:53:46,195 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:53:46,195 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:53:46,195 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 21:53:46,196 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:53:46,196 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 21:53:46,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 21:53:46,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:53:46,197 INFO L87 Difference]: Start difference. First operand 1457 states and 2152 transitions. Second operand 4 states. [2018-10-24 21:53:52,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:53:52,186 INFO L93 Difference]: Finished difference Result 5394 states and 8283 transitions. [2018-10-24 21:53:52,187 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 21:53:52,188 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 129 [2018-10-24 21:53:52,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:53:52,214 INFO L225 Difference]: With dead ends: 5394 [2018-10-24 21:53:52,214 INFO L226 Difference]: Without dead ends: 3943 [2018-10-24 21:53:52,228 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:53:52,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3943 states. [2018-10-24 21:53:52,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3943 to 3943. [2018-10-24 21:53:52,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3943 states. [2018-10-24 21:53:52,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3943 states to 3943 states and 5430 transitions. [2018-10-24 21:53:52,346 INFO L78 Accepts]: Start accepts. Automaton has 3943 states and 5430 transitions. Word has length 129 [2018-10-24 21:53:52,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:53:52,346 INFO L481 AbstractCegarLoop]: Abstraction has 3943 states and 5430 transitions. [2018-10-24 21:53:52,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 21:53:52,347 INFO L276 IsEmpty]: Start isEmpty. Operand 3943 states and 5430 transitions. [2018-10-24 21:53:52,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2018-10-24 21:53:52,356 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:53:52,357 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 21:53:52,358 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:53:52,358 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:53:52,358 INFO L82 PathProgramCache]: Analyzing trace with hash 107667736, now seen corresponding path program 1 times [2018-10-24 21:53:52,359 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:53:52,359 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:53:52,360 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:53:52,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:53:52,360 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:53:52,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:53:52,690 WARN L179 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 21:53:53,113 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 82 proven. 75 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 21:53:53,113 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:53:53,114 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:53:53,115 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 216 with the following transitions: [2018-10-24 21:53:53,117 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [357], [359], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [613], [614], [618], [622], [626], [630], [633], [638], [640], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-24 21:53:53,220 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:53:53,220 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:53:55,099 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 21:53:55,640 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:53:55,642 INFO L272 AbstractInterpreter]: Visited 90 different actions 90 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-24 21:53:55,688 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:53:55,688 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:53:57,798 INFO L232 lantSequenceWeakener]: Weakened 205 states. On average, predicates are now at 78.03% of their original sizes. [2018-10-24 21:53:57,799 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 21:53:58,075 INFO L413 sIntCurrentIteration]: We have 214 unified AI predicates [2018-10-24 21:53:58,076 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 21:53:58,077 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 21:53:58,077 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-10-24 21:53:58,077 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:53:58,078 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 21:53:58,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 21:53:58,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 21:53:58,079 INFO L87 Difference]: Start difference. First operand 3943 states and 5430 transitions. Second operand 7 states. [2018-10-24 21:55:08,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:55:08,195 INFO L93 Difference]: Finished difference Result 8190 states and 11236 transitions. [2018-10-24 21:55:08,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:55:08,195 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 215 [2018-10-24 21:55:08,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:55:08,221 INFO L225 Difference]: With dead ends: 8190 [2018-10-24 21:55:08,221 INFO L226 Difference]: Without dead ends: 4253 [2018-10-24 21:55:08,240 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 215 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-24 21:55:08,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4253 states. [2018-10-24 21:55:08,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4253 to 4251. [2018-10-24 21:55:08,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4251 states. [2018-10-24 21:55:08,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4251 states to 4251 states and 5746 transitions. [2018-10-24 21:55:08,352 INFO L78 Accepts]: Start accepts. Automaton has 4251 states and 5746 transitions. Word has length 215 [2018-10-24 21:55:08,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:55:08,353 INFO L481 AbstractCegarLoop]: Abstraction has 4251 states and 5746 transitions. [2018-10-24 21:55:08,353 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 21:55:08,353 INFO L276 IsEmpty]: Start isEmpty. Operand 4251 states and 5746 transitions. [2018-10-24 21:55:08,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2018-10-24 21:55:08,363 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:55:08,364 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, 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, 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 21:55:08,364 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:55:08,364 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:55:08,365 INFO L82 PathProgramCache]: Analyzing trace with hash -1560998385, now seen corresponding path program 1 times [2018-10-24 21:55:08,365 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:55:08,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:55:08,367 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:55:08,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:55:08,367 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:55:08,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:55:08,871 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 129 proven. 221 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-10-24 21:55:08,871 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:55:08,871 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:55:08,871 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 312 with the following transitions: [2018-10-24 21:55:08,872 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [357], [359], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [613], [614], [618], [622], [626], [630], [633], [638], [640], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-24 21:55:08,877 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:55:08,877 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:55:10,307 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 21:55:18,187 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:55:18,188 INFO L272 AbstractInterpreter]: Visited 105 different actions 302 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 21:55:18,197 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:55:18,197 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:55:22,597 INFO L232 lantSequenceWeakener]: Weakened 78 states. On average, predicates are now at 77.91% of their original sizes. [2018-10-24 21:55:22,598 INFO L411 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-10-24 21:57:18,666 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 21:57:18,678 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 21:57:18,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:57:18 BoogieIcfgContainer [2018-10-24 21:57:18,679 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 21:57:18,680 INFO L168 Benchmark]: Toolchain (without parser) took 240070.03 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 3.2 GB in the end (delta: -1.8 GB). Peak memory consumption was 647.7 MB. Max. memory is 7.1 GB. [2018-10-24 21:57:18,683 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 21:57:18,684 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1360.94 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 95.3 MB). Peak memory consumption was 95.3 MB. Max. memory is 7.1 GB. [2018-10-24 21:57:18,687 INFO L168 Benchmark]: Boogie Procedure Inliner took 362.43 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 776.5 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -881.6 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. [2018-10-24 21:57:18,689 INFO L168 Benchmark]: Boogie Preprocessor took 205.98 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. [2018-10-24 21:57:18,690 INFO L168 Benchmark]: RCFGBuilder took 7555.99 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 297.0 MB). Peak memory consumption was 297.0 MB. Max. memory is 7.1 GB. [2018-10-24 21:57:18,691 INFO L168 Benchmark]: TraceAbstraction took 230578.81 ms. Allocated memory was 2.3 GB in the beginning and 4.0 GB in the end (delta: 1.7 GB). Free memory was 1.9 GB in the beginning and 3.2 GB in the end (delta: -1.3 GB). Peak memory consumption was 347.0 MB. Max. memory is 7.1 GB. [2018-10-24 21:57:18,698 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 1360.94 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 95.3 MB). Peak memory consumption was 95.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 362.43 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 776.5 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -881.6 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 205.98 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7555.99 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 297.0 MB). Peak memory consumption was 297.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 230578.81 ms. Allocated memory was 2.3 GB in the beginning and 4.0 GB in the end (delta: 1.7 GB). Free memory was 1.9 GB in the beginning and 3.2 GB in the end (delta: -1.3 GB). Peak memory consumption was 347.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 130]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 130). Cancelled while BasicCegarLoop was analyzing trace of length 312 with TraceHistMax 4,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 17 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 230.4s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 92.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1161 SDtfs, 3409 SDslu, 944 SDs, 0 SdLazy, 6516 SolverSat, 1813 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 65.7s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 235 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4251occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 11.8s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9955021296603607 AbsIntWeakeningRatio, 0.11450381679389313 AbsIntAvgWeakeningVarsNumRemoved, 379.55534351145036 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 378 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 513 NumberOfCodeBlocks, 513 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 509 ConstructedInterpolants, 0 QuantifiedInterpolants, 237439 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 169/244 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown