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 0.1.23-0fd1304 [2018-10-24 01:22:55,790 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 01:22:55,792 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 01:22:55,805 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 01:22:55,805 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 01:22:55,807 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 01:22:55,808 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 01:22:55,810 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 01:22:55,812 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 01:22:55,813 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 01:22:55,814 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 01:22:55,814 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 01:22:55,815 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 01:22:55,816 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 01:22:55,817 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 01:22:55,818 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 01:22:55,819 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 01:22:55,821 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 01:22:55,823 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 01:22:55,825 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 01:22:55,826 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 01:22:55,828 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 01:22:55,830 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 01:22:55,838 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 01:22:55,838 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 01:22:55,840 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 01:22:55,840 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 01:22:55,841 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 01:22:55,874 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 01:22:55,877 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 01:22:55,878 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 01:22:55,878 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 01:22:55,879 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 01:22:55,879 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 01:22:55,879 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 01:22:55,880 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 01:22:55,883 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 01:22:55,883 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 01:22:55,883 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 01:22:55,884 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 01:22:55,885 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 01:22:55,885 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 01:22:55,885 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 01:22:55,885 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 01:22:55,889 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 01:22:55,889 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 01:22:55,889 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 01:22:55,889 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 01:22:55,890 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 01:22:55,890 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 01:22:55,890 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 01:22:55,890 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 01:22:55,891 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 01:22:55,893 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 01:22:55,893 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 01:22:55,893 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 01:22:55,893 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 01:22:55,894 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 01:22:55,894 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 01:22:55,894 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 01:22:55,894 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 01:22:55,894 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 01:22:55,961 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 01:22:55,974 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 01:22:55,978 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 01:22:55,980 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 01:22:55,980 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 01:22:55,981 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label02_true-unreach-call.c [2018-10-24 01:22:56,042 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/120c538c3/3c650a8b077d4c829ff1e19dc9a843ab/FLAGc20ceb497 [2018-10-24 01:22:56,888 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 01:22:56,889 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label02_true-unreach-call.c [2018-10-24 01:22:56,940 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/120c538c3/3c650a8b077d4c829ff1e19dc9a843ab/FLAGc20ceb497 [2018-10-24 01:22:56,965 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/120c538c3/3c650a8b077d4c829ff1e19dc9a843ab [2018-10-24 01:22:56,978 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 01:22:56,981 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 01:22:56,982 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 01:22:56,982 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 01:22:56,989 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 01:22:56,990 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:22:56" (1/1) ... [2018-10-24 01:22:56,994 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e19617d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:22:56, skipping insertion in model container [2018-10-24 01:22:56,994 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:22:56" (1/1) ... [2018-10-24 01:22:57,007 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 01:22:57,216 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 01:22:58,725 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 01:22:58,730 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 01:22:59,449 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 01:22:59,489 INFO L193 MainTranslator]: Completed translation [2018-10-24 01:22:59,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:22:59 WrapperNode [2018-10-24 01:22:59,490 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 01:22:59,491 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 01:22:59,491 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 01:22:59,492 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 01:22:59,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:22:59" (1/1) ... [2018-10-24 01:22:59,589 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:22:59" (1/1) ... [2018-10-24 01:23:00,108 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 01:23:00,109 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 01:23:00,109 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 01:23:00,110 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 01:23:00,121 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:22:59" (1/1) ... [2018-10-24 01:23:00,121 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:22:59" (1/1) ... [2018-10-24 01:23:00,147 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:22:59" (1/1) ... [2018-10-24 01:23:00,148 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:22:59" (1/1) ... [2018-10-24 01:23:00,259 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:22:59" (1/1) ... [2018-10-24 01:23:00,295 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:22:59" (1/1) ... [2018-10-24 01:23:00,334 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:22:59" (1/1) ... [2018-10-24 01:23:00,381 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 01:23:00,381 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 01:23:00,381 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 01:23:00,382 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 01:23:00,382 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:22:59" (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 01:23:00,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 01:23:00,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 01:23:00,461 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-24 01:23:00,461 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-24 01:23:00,461 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-24 01:23:00,461 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-24 01:23:00,462 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 01:23:00,463 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 01:23:00,463 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 01:23:00,463 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 01:23:00,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 01:23:00,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 01:23:00,464 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 01:23:00,465 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 01:23:11,419 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 01:23:11,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:23:11 BoogieIcfgContainer [2018-10-24 01:23:11,420 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 01:23:11,421 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 01:23:11,422 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 01:23:11,427 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 01:23:11,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:22:56" (1/3) ... [2018-10-24 01:23:11,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a2c88a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:23:11, skipping insertion in model container [2018-10-24 01:23:11,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:22:59" (2/3) ... [2018-10-24 01:23:11,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a2c88a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:23:11, skipping insertion in model container [2018-10-24 01:23:11,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:23:11" (3/3) ... [2018-10-24 01:23:11,433 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label02_true-unreach-call.c [2018-10-24 01:23:11,443 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 01:23:11,453 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 01:23:11,471 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 01:23:11,518 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 01:23:11,519 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 01:23:11,519 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 01:23:11,519 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 01:23:11,519 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 01:23:11,519 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 01:23:11,520 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 01:23:11,520 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 01:23:11,567 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-10-24 01:23:11,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-10-24 01:23:11,577 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:23:11,578 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 01:23:11,580 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:23:11,586 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:23:11,586 INFO L82 PathProgramCache]: Analyzing trace with hash 608823044, now seen corresponding path program 1 times [2018-10-24 01:23:11,588 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:23:11,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:23:11,646 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:23:11,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:23:11,646 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:23:11,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:23:12,126 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-10-24 01:23:12,146 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 01:23:12,149 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 01:23:12,149 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 01:23:12,149 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:23:12,156 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 01:23:12,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 01:23:12,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 01:23:12,182 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 4 states. [2018-10-24 01:23:28,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:23:28,450 INFO L93 Difference]: Finished difference Result 4105 states and 7669 transitions. [2018-10-24 01:23:28,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 01:23:28,464 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 46 [2018-10-24 01:23:28,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:23:28,517 INFO L225 Difference]: With dead ends: 4105 [2018-10-24 01:23:28,518 INFO L226 Difference]: Without dead ends: 2979 [2018-10-24 01:23:28,536 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 01:23:28,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2979 states. [2018-10-24 01:23:28,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2979 to 2849. [2018-10-24 01:23:28,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2849 states. [2018-10-24 01:23:28,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2849 states to 2849 states and 5075 transitions. [2018-10-24 01:23:28,732 INFO L78 Accepts]: Start accepts. Automaton has 2849 states and 5075 transitions. Word has length 46 [2018-10-24 01:23:28,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:23:28,733 INFO L481 AbstractCegarLoop]: Abstraction has 2849 states and 5075 transitions. [2018-10-24 01:23:28,733 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 01:23:28,733 INFO L276 IsEmpty]: Start isEmpty. Operand 2849 states and 5075 transitions. [2018-10-24 01:23:28,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-10-24 01:23:28,742 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:23:28,742 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 01:23:28,743 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:23:28,743 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:23:28,743 INFO L82 PathProgramCache]: Analyzing trace with hash -248268951, now seen corresponding path program 1 times [2018-10-24 01:23:28,743 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:23:28,745 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:23:28,745 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:23:28,745 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:23:28,745 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:23:28,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:23:29,110 WARN L179 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 01:23:29,431 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 01:23:29,432 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 01:23:29,432 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 01:23:29,432 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:23:29,435 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 01:23:29,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 01:23:29,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 01:23:29,436 INFO L87 Difference]: Start difference. First operand 2849 states and 5075 transitions. Second operand 6 states. [2018-10-24 01:23:49,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:23:49,461 INFO L93 Difference]: Finished difference Result 10644 states and 19598 transitions. [2018-10-24 01:23:49,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 01:23:49,461 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 117 [2018-10-24 01:23:49,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:23:49,507 INFO L225 Difference]: With dead ends: 10644 [2018-10-24 01:23:49,508 INFO L226 Difference]: Without dead ends: 7801 [2018-10-24 01:23:49,528 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 01:23:49,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7801 states. [2018-10-24 01:23:49,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7801 to 7735. [2018-10-24 01:23:49,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7735 states. [2018-10-24 01:23:49,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7735 states to 7735 states and 12389 transitions. [2018-10-24 01:23:49,759 INFO L78 Accepts]: Start accepts. Automaton has 7735 states and 12389 transitions. Word has length 117 [2018-10-24 01:23:49,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:23:49,760 INFO L481 AbstractCegarLoop]: Abstraction has 7735 states and 12389 transitions. [2018-10-24 01:23:49,760 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 01:23:49,760 INFO L276 IsEmpty]: Start isEmpty. Operand 7735 states and 12389 transitions. [2018-10-24 01:23:49,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2018-10-24 01:23:49,763 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:23:49,764 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 01:23:49,764 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:23:49,764 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:23:49,764 INFO L82 PathProgramCache]: Analyzing trace with hash -1062052776, now seen corresponding path program 1 times [2018-10-24 01:23:49,764 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:23:49,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:23:49,766 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:23:49,766 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:23:49,766 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:23:49,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:23:50,032 WARN L179 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 01:23:50,098 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 01:23:50,098 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 01:23:50,099 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 01:23:50,099 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:23:50,099 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 01:23:50,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 01:23:50,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 01:23:50,100 INFO L87 Difference]: Start difference. First operand 7735 states and 12389 transitions. Second operand 6 states. [2018-10-24 01:24:04,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:24:04,412 INFO L93 Difference]: Finished difference Result 20532 states and 34038 transitions. [2018-10-24 01:24:04,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 01:24:04,413 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 120 [2018-10-24 01:24:04,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:24:04,487 INFO L225 Difference]: With dead ends: 20532 [2018-10-24 01:24:04,488 INFO L226 Difference]: Without dead ends: 12803 [2018-10-24 01:24:04,523 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 01:24:04,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12803 states. [2018-10-24 01:24:04,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12803 to 12725. [2018-10-24 01:24:04,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12725 states. [2018-10-24 01:24:04,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12725 states to 12725 states and 19315 transitions. [2018-10-24 01:24:04,868 INFO L78 Accepts]: Start accepts. Automaton has 12725 states and 19315 transitions. Word has length 120 [2018-10-24 01:24:04,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:24:04,868 INFO L481 AbstractCegarLoop]: Abstraction has 12725 states and 19315 transitions. [2018-10-24 01:24:04,868 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 01:24:04,869 INFO L276 IsEmpty]: Start isEmpty. Operand 12725 states and 19315 transitions. [2018-10-24 01:24:04,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-10-24 01:24:04,873 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:24:04,878 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 01:24:04,878 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:24:04,878 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:24:04,879 INFO L82 PathProgramCache]: Analyzing trace with hash 2127704900, now seen corresponding path program 1 times [2018-10-24 01:24:04,879 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:24:04,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:24:04,880 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:24:04,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:24:04,880 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:24:04,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:24:05,212 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 01:24:05,213 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 01:24:05,213 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 01:24:05,213 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:24:05,214 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 01:24:05,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 01:24:05,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 01:24:05,214 INFO L87 Difference]: Start difference. First operand 12725 states and 19315 transitions. Second operand 5 states. [2018-10-24 01:24:26,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:24:26,915 INFO L93 Difference]: Finished difference Result 38445 states and 61988 transitions. [2018-10-24 01:24:26,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 01:24:26,916 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 130 [2018-10-24 01:24:26,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:24:27,042 INFO L225 Difference]: With dead ends: 38445 [2018-10-24 01:24:27,043 INFO L226 Difference]: Without dead ends: 25726 [2018-10-24 01:24:27,093 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 01:24:27,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25726 states. [2018-10-24 01:24:27,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25726 to 25424. [2018-10-24 01:24:27,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25424 states. [2018-10-24 01:24:27,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25424 states to 25424 states and 37358 transitions. [2018-10-24 01:24:27,762 INFO L78 Accepts]: Start accepts. Automaton has 25424 states and 37358 transitions. Word has length 130 [2018-10-24 01:24:27,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:24:27,763 INFO L481 AbstractCegarLoop]: Abstraction has 25424 states and 37358 transitions. [2018-10-24 01:24:27,763 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 01:24:27,763 INFO L276 IsEmpty]: Start isEmpty. Operand 25424 states and 37358 transitions. [2018-10-24 01:24:27,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-10-24 01:24:27,766 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:24:27,767 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 01:24:27,767 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:24:27,767 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:24:27,768 INFO L82 PathProgramCache]: Analyzing trace with hash -334570632, now seen corresponding path program 1 times [2018-10-24 01:24:27,768 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:24:27,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:24:27,769 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:24:27,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:24:27,769 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:24:27,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:24:28,036 WARN L179 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 01:24:28,587 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 01:24:28,587 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 01:24:28,587 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 01:24:28,589 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 148 with the following transitions: [2018-10-24 01:24:28,591 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 01:24:28,672 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 01:24:28,672 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 01:25:06,720 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 01:25:06,722 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 01:25:06,744 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:25:06,744 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 01:25:09,942 INFO L232 lantSequenceWeakener]: Weakened 37 states. On average, predicates are now at 75.42% of their original sizes. [2018-10-24 01:25:09,942 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 01:25:15,733 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 01:25:15,734 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 01:25:15,735 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [7] total 19 [2018-10-24 01:25:15,735 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:25:15,736 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-24 01:25:15,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-24 01:25:15,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2018-10-24 01:25:15,736 INFO L87 Difference]: Start difference. First operand 25424 states and 37358 transitions. Second operand 14 states. [2018-10-24 01:25:38,940 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-24 01:26:48,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-24 01:26:48,364 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 01:26:48,370 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 01:26:48,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 01:26:48 BoogieIcfgContainer [2018-10-24 01:26:48,371 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 01:26:48,372 INFO L168 Benchmark]: Toolchain (without parser) took 231393.12 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -632.7 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-10-24 01:26:48,373 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 01:26:48,374 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2508.86 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 01:26:48,375 INFO L168 Benchmark]: Boogie Procedure Inliner took 617.63 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 798.0 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 73.1 MB. Max. memory is 7.1 GB. [2018-10-24 01:26:48,376 INFO L168 Benchmark]: Boogie Preprocessor took 271.72 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: 44.9 MB). Peak memory consumption was 44.9 MB. Max. memory is 7.1 GB. [2018-10-24 01:26:48,376 INFO L168 Benchmark]: RCFGBuilder took 11039.33 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 203.4 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: -16.5 MB). Peak memory consumption was 664.3 MB. Max. memory is 7.1 GB. [2018-10-24 01:26:48,377 INFO L168 Benchmark]: TraceAbstraction took 216949.69 ms. Allocated memory was 2.5 GB in the beginning and 4.2 GB in the end (delta: 1.7 GB). Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 156.2 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-10-24 01:26:48,383 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 2508.86 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 617.63 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 798.0 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 73.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 271.72 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: 44.9 MB). Peak memory consumption was 44.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11039.33 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 203.4 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: -16.5 MB). Peak memory consumption was 664.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 216949.69 ms. Allocated memory was 2.5 GB in the beginning and 4.2 GB in the end (delta: 1.7 GB). Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 156.2 MB). Peak memory consumption was 1.8 GB. 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, 14 states before enhancement),while ReachableStatesComputation was computing reachable states (1651 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 216.8s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 165.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1763 SDtfs, 14941 SDslu, 2251 SDs, 0 SdLazy, 24322 SolverSat, 7312 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 107.4s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 186 GetRequests, 145 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 7.9s 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, 38.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9938988408851421 AbsIntWeakeningRatio, 0.14383561643835616 AbsIntAvgWeakeningVarsNumRemoved, 33.5 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, 2.2s 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