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/Problem13_label02_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 21:27:50,384 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 21:27:50,389 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 21:27:50,407 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 21:27:50,408 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 21:27:50,409 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 21:27:50,413 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 21:27:50,416 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 21:27:50,419 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 21:27:50,421 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 21:27:50,422 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 21:27:50,422 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 21:27:50,423 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 21:27:50,424 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 21:27:50,425 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 21:27:50,428 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 21:27:50,429 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 21:27:50,432 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 21:27:50,434 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 21:27:50,444 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 21:27:50,445 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 21:27:50,446 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 21:27:50,452 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 21:27:50,465 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 21:27:50,465 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 21:27:50,466 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 21:27:50,467 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 21:27:50,467 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 21:27:50,499 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 21:27:50,499 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 21:27:50,501 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 21:27:50,501 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 21:27:50,501 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 21:27:50,502 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 21:27:50,502 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 21:27:50,502 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 21:27:50,502 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 21:27:50,502 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 21:27:50,503 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 21:27:50,506 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 21:27:50,507 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 21:27:50,507 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 21:27:50,507 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 21:27:50,507 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 21:27:50,507 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 21:27:50,507 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 21:27:50,509 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 21:27:50,510 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 21:27:50,510 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 21:27:50,510 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 21:27:50,510 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 21:27:50,510 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 21:27:50,511 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 21:27:50,511 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 21:27:50,511 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 21:27:50,511 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 21:27:50,512 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 21:27:50,512 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 21:27:50,512 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 21:27:50,512 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 21:27:50,512 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 21:27:50,513 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 21:27:50,566 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 21:27:50,580 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 21:27:50,584 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 21:27:50,585 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 21:27:50,586 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 21:27:50,586 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label02_true-unreach-call.c [2018-10-24 21:27:50,643 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f123811e9/63904fd3fae945fcb84e07a4848d79ff/FLAGdc0b7bf1b [2018-10-24 21:27:51,477 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 21:27:51,478 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label02_true-unreach-call.c [2018-10-24 21:27:51,520 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f123811e9/63904fd3fae945fcb84e07a4848d79ff/FLAGdc0b7bf1b [2018-10-24 21:27:51,537 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f123811e9/63904fd3fae945fcb84e07a4848d79ff [2018-10-24 21:27:51,550 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 21:27:51,552 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 21:27:51,553 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 21:27:51,554 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 21:27:51,558 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 21:27:51,559 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:27:51" (1/1) ... [2018-10-24 21:27:51,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d7077a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:27:51, skipping insertion in model container [2018-10-24 21:27:51,562 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:27:51" (1/1) ... [2018-10-24 21:27:51,574 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 21:27:51,773 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 21:27:53,159 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:27:53,164 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 21:27:53,929 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:27:53,967 INFO L193 MainTranslator]: Completed translation [2018-10-24 21:27:53,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:27:53 WrapperNode [2018-10-24 21:27:53,968 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 21:27:53,969 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 21:27:53,970 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 21:27:53,971 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 21:27:53,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:27:53" (1/1) ... [2018-10-24 21:27:54,085 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:27:53" (1/1) ... [2018-10-24 21:27:54,599 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 21:27:54,600 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 21:27:54,600 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 21:27:54,600 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 21:27:54,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:27:53" (1/1) ... [2018-10-24 21:27:54,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:27:53" (1/1) ... [2018-10-24 21:27:54,655 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:27:53" (1/1) ... [2018-10-24 21:27:54,655 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:27:53" (1/1) ... [2018-10-24 21:27:54,806 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:27:53" (1/1) ... [2018-10-24 21:27:54,845 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:27:53" (1/1) ... [2018-10-24 21:27:54,884 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:27:53" (1/1) ... [2018-10-24 21:27:54,926 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 21:27:54,926 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 21:27:54,926 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 21:27:54,927 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 21:27:54,928 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:27:53" (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 21:27:54,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 21:27:54,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 21:27:54,999 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-24 21:27:55,000 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-24 21:27:55,000 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-24 21:27:55,000 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-24 21:27:55,000 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 21:27:55,001 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 21:27:55,001 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 21:27:55,001 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 21:27:55,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 21:27:55,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 21:27:55,002 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 21:27:55,003 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 21:28:05,975 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 21:28:05,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:28:05 BoogieIcfgContainer [2018-10-24 21:28:05,976 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 21:28:05,977 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 21:28:05,977 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 21:28:05,981 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 21:28:05,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:27:51" (1/3) ... [2018-10-24 21:28:05,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d6935a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:28:05, skipping insertion in model container [2018-10-24 21:28:05,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:27:53" (2/3) ... [2018-10-24 21:28:05,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d6935a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:28:05, skipping insertion in model container [2018-10-24 21:28:05,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:28:05" (3/3) ... [2018-10-24 21:28:05,985 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label02_true-unreach-call.c [2018-10-24 21:28:05,995 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 21:28:06,007 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 21:28:06,025 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 21:28:06,073 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 21:28:06,073 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 21:28:06,073 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 21:28:06,074 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 21:28:06,074 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 21:28:06,074 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 21:28:06,074 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 21:28:06,074 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 21:28:06,118 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-10-24 21:28:06,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-10-24 21:28:06,126 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:28:06,127 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] [2018-10-24 21:28:06,129 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:28:06,136 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:28:06,136 INFO L82 PathProgramCache]: Analyzing trace with hash 608823044, now seen corresponding path program 1 times [2018-10-24 21:28:06,139 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:28:06,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:28:06,198 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:28:06,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:28:06,198 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:28:06,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:28:06,633 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 21:28:06,635 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:28:06,635 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 21:28:06,636 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:28:06,642 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 21:28:06,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 21:28:06,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:28:06,662 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 4 states. [2018-10-24 21:28:23,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:28:23,125 INFO L93 Difference]: Finished difference Result 4105 states and 7669 transitions. [2018-10-24 21:28:23,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 21:28:23,127 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 46 [2018-10-24 21:28:23,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:28:23,173 INFO L225 Difference]: With dead ends: 4105 [2018-10-24 21:28:23,174 INFO L226 Difference]: Without dead ends: 2979 [2018-10-24 21:28:23,189 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 21:28:23,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2979 states. [2018-10-24 21:28:23,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2979 to 2849. [2018-10-24 21:28:23,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2849 states. [2018-10-24 21:28:23,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2849 states to 2849 states and 5075 transitions. [2018-10-24 21:28:23,392 INFO L78 Accepts]: Start accepts. Automaton has 2849 states and 5075 transitions. Word has length 46 [2018-10-24 21:28:23,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:28:23,393 INFO L481 AbstractCegarLoop]: Abstraction has 2849 states and 5075 transitions. [2018-10-24 21:28:23,393 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 21:28:23,393 INFO L276 IsEmpty]: Start isEmpty. Operand 2849 states and 5075 transitions. [2018-10-24 21:28:23,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-10-24 21:28:23,405 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:28:23,406 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:28:23,406 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:28:23,406 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:28:23,407 INFO L82 PathProgramCache]: Analyzing trace with hash -248268951, now seen corresponding path program 1 times [2018-10-24 21:28:23,407 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:28:23,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:28:23,409 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:28:23,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:28:23,409 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:28:23,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:28:23,931 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:28:23,932 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:28:23,932 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 21:28:23,932 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:28:23,934 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 21:28:23,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 21:28:23,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 21:28:23,935 INFO L87 Difference]: Start difference. First operand 2849 states and 5075 transitions. Second operand 6 states. [2018-10-24 21:28:43,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:28:43,952 INFO L93 Difference]: Finished difference Result 10644 states and 19598 transitions. [2018-10-24 21:28:43,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 21:28:43,953 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 117 [2018-10-24 21:28:43,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:28:44,000 INFO L225 Difference]: With dead ends: 10644 [2018-10-24 21:28:44,001 INFO L226 Difference]: Without dead ends: 7801 [2018-10-24 21:28:44,020 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 21:28:44,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7801 states. [2018-10-24 21:28:44,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7801 to 7735. [2018-10-24 21:28:44,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7735 states. [2018-10-24 21:28:44,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7735 states to 7735 states and 12389 transitions. [2018-10-24 21:28:44,261 INFO L78 Accepts]: Start accepts. Automaton has 7735 states and 12389 transitions. Word has length 117 [2018-10-24 21:28:44,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:28:44,261 INFO L481 AbstractCegarLoop]: Abstraction has 7735 states and 12389 transitions. [2018-10-24 21:28:44,262 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 21:28:44,262 INFO L276 IsEmpty]: Start isEmpty. Operand 7735 states and 12389 transitions. [2018-10-24 21:28:44,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2018-10-24 21:28:44,277 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:28:44,278 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:28:44,278 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:28:44,278 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:28:44,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1062052776, now seen corresponding path program 1 times [2018-10-24 21:28:44,279 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:28:44,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:28:44,280 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:28:44,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:28:44,281 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:28:44,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:28:44,593 WARN L179 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 21:28:44,695 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:28:44,695 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:28:44,695 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 21:28:44,696 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:28:44,696 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 21:28:44,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 21:28:44,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 21:28:44,697 INFO L87 Difference]: Start difference. First operand 7735 states and 12389 transitions. Second operand 6 states. [2018-10-24 21:28:57,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:28:57,272 INFO L93 Difference]: Finished difference Result 20532 states and 34038 transitions. [2018-10-24 21:28:57,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:28:57,275 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 120 [2018-10-24 21:28:57,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:28:57,344 INFO L225 Difference]: With dead ends: 20532 [2018-10-24 21:28:57,345 INFO L226 Difference]: Without dead ends: 12803 [2018-10-24 21:28:57,388 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 21:28:57,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12803 states. [2018-10-24 21:28:57,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12803 to 12725. [2018-10-24 21:28:57,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12725 states. [2018-10-24 21:28:57,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12725 states to 12725 states and 19315 transitions. [2018-10-24 21:28:57,720 INFO L78 Accepts]: Start accepts. Automaton has 12725 states and 19315 transitions. Word has length 120 [2018-10-24 21:28:57,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:28:57,720 INFO L481 AbstractCegarLoop]: Abstraction has 12725 states and 19315 transitions. [2018-10-24 21:28:57,721 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 21:28:57,721 INFO L276 IsEmpty]: Start isEmpty. Operand 12725 states and 19315 transitions. [2018-10-24 21:28:57,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-10-24 21:28:57,726 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:28:57,726 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:28:57,727 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:28:57,731 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:28:57,731 INFO L82 PathProgramCache]: Analyzing trace with hash 2127704900, now seen corresponding path program 1 times [2018-10-24 21:28:57,731 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:28:57,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:28:57,733 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:28:57,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:28:57,733 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:28:57,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:28:57,944 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:28:57,944 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:28:57,945 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 21:28:57,945 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:28:57,945 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 21:28:57,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 21:28:57,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 21:28:57,946 INFO L87 Difference]: Start difference. First operand 12725 states and 19315 transitions. Second operand 5 states. [2018-10-24 21:29:10,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:29:10,386 INFO L93 Difference]: Finished difference Result 38445 states and 61990 transitions. [2018-10-24 21:29:10,387 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 21:29:10,387 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 130 [2018-10-24 21:29:10,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:29:10,505 INFO L225 Difference]: With dead ends: 38445 [2018-10-24 21:29:10,505 INFO L226 Difference]: Without dead ends: 25726 [2018-10-24 21:29:10,559 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 21:29:10,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25726 states. [2018-10-24 21:29:11,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25726 to 25424. [2018-10-24 21:29:11,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25424 states. [2018-10-24 21:29:11,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25424 states to 25424 states and 37360 transitions. [2018-10-24 21:29:11,224 INFO L78 Accepts]: Start accepts. Automaton has 25424 states and 37360 transitions. Word has length 130 [2018-10-24 21:29:11,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:29:11,224 INFO L481 AbstractCegarLoop]: Abstraction has 25424 states and 37360 transitions. [2018-10-24 21:29:11,224 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 21:29:11,225 INFO L276 IsEmpty]: Start isEmpty. Operand 25424 states and 37360 transitions. [2018-10-24 21:29:11,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-10-24 21:29:11,232 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:29:11,232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:29:11,232 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:29:11,232 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:29:11,233 INFO L82 PathProgramCache]: Analyzing trace with hash -334570632, now seen corresponding path program 1 times [2018-10-24 21:29:11,233 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:29:11,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:29:11,234 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:29:11,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:29:11,234 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:29:11,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:29:11,569 WARN L179 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 21:29:12,153 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 22 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:29:12,153 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:29:12,153 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:29:12,155 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 148 with the following transitions: [2018-10-24 21:29:12,159 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2895], [2897], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-10-24 21:29:12,239 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:29:12,239 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:29:48,668 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:29:48,670 INFO L272 AbstractInterpreter]: Visited 108 different actions 720 times. Merged at 5 different actions 30 times. Widened at 1 different actions 2 times. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-10-24 21:29:48,689 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:29:48,689 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:29:51,817 INFO L232 lantSequenceWeakener]: Weakened 95 states. On average, predicates are now at 72.72% of their original sizes. [2018-10-24 21:29:51,818 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 21:29:55,234 INFO L413 sIntCurrentIteration]: We have 146 unified AI predicates [2018-10-24 21:29:55,234 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 21:29:55,235 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 21:29:55,235 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [7] total 21 [2018-10-24 21:29:55,235 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:29:55,236 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-24 21:29:55,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-24 21:29:55,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2018-10-24 21:29:55,237 INFO L87 Difference]: Start difference. First operand 25424 states and 37360 transitions. Second operand 16 states. [2018-10-24 21:30:09,219 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-24 21:31:37,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-24 21:31:37,699 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 21:31:37,705 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 21:31:37,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:31:37 BoogieIcfgContainer [2018-10-24 21:31:37,705 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 21:31:37,706 INFO L168 Benchmark]: Toolchain (without parser) took 226154.72 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 3.3 GB in the end (delta: -1.9 GB). Peak memory consumption was 724.9 MB. Max. memory is 7.1 GB. [2018-10-24 21:31:37,707 INFO L168 Benchmark]: CDTParser took 0.20 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 21:31:37,707 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2415.64 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-10-24 21:31:37,708 INFO L168 Benchmark]: Boogie Procedure Inliner took 630.09 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 801.6 MB). Free memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 73.0 MB. Max. memory is 7.1 GB. [2018-10-24 21:31:37,709 INFO L168 Benchmark]: Boogie Preprocessor took 326.08 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: 37.3 MB). Peak memory consumption was 37.3 MB. Max. memory is 7.1 GB. [2018-10-24 21:31:37,710 INFO L168 Benchmark]: RCFGBuilder took 11049.98 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 202.9 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: -8.9 MB). Peak memory consumption was 674.8 MB. Max. memory is 7.1 GB. [2018-10-24 21:31:37,711 INFO L168 Benchmark]: TraceAbstraction took 211727.76 ms. Allocated memory was 2.5 GB in the beginning and 4.1 GB in the end (delta: 1.6 GB). Free memory was 2.2 GB in the beginning and 3.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 521.3 MB. Max. memory is 7.1 GB. [2018-10-24 21:31:37,716 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 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2415.64 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 630.09 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 801.6 MB). Free memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 73.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 326.08 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: 37.3 MB). Peak memory consumption was 37.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11049.98 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 202.9 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: -8.9 MB). Peak memory consumption was 674.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 211727.76 ms. Allocated memory was 2.5 GB in the beginning and 4.1 GB in the end (delta: 1.6 GB). Free memory was 2.2 GB in the beginning and 3.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 521.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 129]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 129). Cancelled while BasicCegarLoop was constructing difference of abstraction (25424states) and FLOYD_HOARE automaton (currently 15 states, 16 states before enhancement),while ReachableStatesComputation was computing reachable states (6170 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 211.6s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 164.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1901 SDtfs, 15943 SDslu, 2384 SDs, 0 SdLazy, 25292 SolverSat, 7383 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 97.6s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 189 GetRequests, 143 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 5.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25424occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 36.5s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9938988408851421 AbsIntWeakeningRatio, 0.14383561643835616 AbsIntAvgWeakeningVarsNumRemoved, 599.7465753424658 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 576 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 560 NumberOfCodeBlocks, 560 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 555 ConstructedInterpolants, 0 QuantifiedInterpolants, 312958 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 139/156 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown