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_label40_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 18:25:12,860 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 18:25:12,862 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 18:25:12,882 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 18:25:12,883 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 18:25:12,884 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 18:25:12,885 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 18:25:12,887 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 18:25:12,888 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 18:25:12,889 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 18:25:12,891 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 18:25:12,891 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 18:25:12,892 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 18:25:12,895 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 18:25:12,899 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 18:25:12,900 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 18:25:12,901 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 18:25:12,906 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 18:25:12,910 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 18:25:12,915 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 18:25:12,916 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 18:25:12,919 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 18:25:12,925 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 18:25:12,941 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 18:25:12,969 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 18:25:12,970 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 18:25:12,971 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 18:25:12,972 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 18:25:12,972 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 18:25:12,972 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 18:25:12,972 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 18:25:12,972 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 18:25:12,973 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 18:25:12,973 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 18:25:12,973 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 18:25:12,973 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 18:25:12,974 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 18:25:12,974 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 18:25:12,975 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 18:25:12,975 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 18:25:12,975 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 18:25:12,975 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 18:25:12,975 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 18:25:12,975 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 18:25:12,977 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 18:25:12,978 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 18:25:12,978 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 18:25:12,978 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 18:25:12,978 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 18:25:12,978 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 18:25:12,979 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 18:25:12,979 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 18:25:12,979 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 18:25:12,979 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 18:25:12,979 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 18:25:12,980 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 18:25:12,980 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 18:25:12,980 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 18:25:13,037 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 18:25:13,050 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 18:25:13,054 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 18:25:13,055 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 18:25:13,056 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 18:25:13,057 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label40_false-unreach-call.c [2018-10-24 18:25:13,115 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/73f19974a/be23ef38145b4f7d95953f7d6efa0932/FLAG423488f90 [2018-10-24 18:25:13,897 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 18:25:13,898 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label40_false-unreach-call.c [2018-10-24 18:25:13,931 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/73f19974a/be23ef38145b4f7d95953f7d6efa0932/FLAG423488f90 [2018-10-24 18:25:13,951 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/73f19974a/be23ef38145b4f7d95953f7d6efa0932 [2018-10-24 18:25:13,964 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 18:25:13,966 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 18:25:13,967 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 18:25:13,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 18:25:13,972 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 18:25:13,973 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:25:13" (1/1) ... [2018-10-24 18:25:13,976 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d9de6d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:25:13, skipping insertion in model container [2018-10-24 18:25:13,977 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:25:13" (1/1) ... [2018-10-24 18:25:13,990 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 18:25:14,184 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 18:25:15,728 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:25:15,733 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 18:25:16,431 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:25:16,464 INFO L193 MainTranslator]: Completed translation [2018-10-24 18:25:16,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:25:16 WrapperNode [2018-10-24 18:25:16,465 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 18:25:16,466 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 18:25:16,466 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 18:25:16,466 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 18:25:16,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:25:16" (1/1) ... [2018-10-24 18:25:16,543 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:25:16" (1/1) ... [2018-10-24 18:25:17,071 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 18:25:17,071 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 18:25:17,072 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 18:25:17,072 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 18:25:17,083 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:25:16" (1/1) ... [2018-10-24 18:25:17,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:25:16" (1/1) ... [2018-10-24 18:25:17,118 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:25:16" (1/1) ... [2018-10-24 18:25:17,118 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:25:16" (1/1) ... [2018-10-24 18:25:17,301 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:25:16" (1/1) ... [2018-10-24 18:25:17,337 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:25:16" (1/1) ... [2018-10-24 18:25:17,412 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:25:16" (1/1) ... [2018-10-24 18:25:17,491 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 18:25:17,492 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 18:25:17,492 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 18:25:17,492 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 18:25:17,493 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:25:16" (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 18:25:17,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 18:25:17,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 18:25:17,563 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-24 18:25:17,564 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-24 18:25:17,564 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-24 18:25:17,565 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-24 18:25:17,565 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 18:25:17,565 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 18:25:17,565 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 18:25:17,565 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 18:25:17,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 18:25:17,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 18:25:17,566 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 18:25:17,567 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 18:25:30,310 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 18:25:30,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:25:30 BoogieIcfgContainer [2018-10-24 18:25:30,311 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 18:25:30,312 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 18:25:30,312 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 18:25:30,316 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 18:25:30,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:25:13" (1/3) ... [2018-10-24 18:25:30,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b824d22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:25:30, skipping insertion in model container [2018-10-24 18:25:30,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:25:16" (2/3) ... [2018-10-24 18:25:30,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b824d22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:25:30, skipping insertion in model container [2018-10-24 18:25:30,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:25:30" (3/3) ... [2018-10-24 18:25:30,319 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label40_false-unreach-call.c [2018-10-24 18:25:30,329 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 18:25:30,344 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 18:25:30,361 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 18:25:30,420 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 18:25:30,420 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 18:25:30,420 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 18:25:30,421 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 18:25:30,421 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 18:25:30,421 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 18:25:30,421 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 18:25:30,421 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 18:25:30,467 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-10-24 18:25:30,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-10-24 18:25:30,474 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:25:30,476 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] [2018-10-24 18:25:30,478 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:25:30,484 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:25:30,485 INFO L82 PathProgramCache]: Analyzing trace with hash 271485347, now seen corresponding path program 1 times [2018-10-24 18:25:30,487 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:25:30,544 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:25:30,545 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:25:30,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:25:30,545 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:25:30,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:25:31,010 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 18:25:31,015 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:25:31,015 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 18:25:31,015 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:25:31,022 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 18:25:31,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 18:25:31,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 18:25:31,044 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-10-24 18:25:39,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:25:39,821 INFO L93 Difference]: Finished difference Result 3097 states and 5707 transitions. [2018-10-24 18:25:39,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 18:25:39,823 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2018-10-24 18:25:39,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:25:39,859 INFO L225 Difference]: With dead ends: 3097 [2018-10-24 18:25:39,859 INFO L226 Difference]: Without dead ends: 1975 [2018-10-24 18:25:39,873 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 18:25:39,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2018-10-24 18:25:40,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1974. [2018-10-24 18:25:40,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1974 states. [2018-10-24 18:25:40,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1974 states to 1974 states and 3284 transitions. [2018-10-24 18:25:40,055 INFO L78 Accepts]: Start accepts. Automaton has 1974 states and 3284 transitions. Word has length 35 [2018-10-24 18:25:40,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:25:40,055 INFO L481 AbstractCegarLoop]: Abstraction has 1974 states and 3284 transitions. [2018-10-24 18:25:40,055 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 18:25:40,056 INFO L276 IsEmpty]: Start isEmpty. Operand 1974 states and 3284 transitions. [2018-10-24 18:25:40,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-10-24 18:25:40,062 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:25:40,062 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:25:40,062 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:25:40,064 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:25:40,064 INFO L82 PathProgramCache]: Analyzing trace with hash -526382702, now seen corresponding path program 1 times [2018-10-24 18:25:40,064 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:25:40,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:25:40,066 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:25:40,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:25:40,066 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:25:40,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:25:40,386 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:25:40,387 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:25:40,387 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 18:25:40,387 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:25:40,389 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 18:25:40,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 18:25:40,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 18:25:40,391 INFO L87 Difference]: Start difference. First operand 1974 states and 3284 transitions. Second operand 5 states. [2018-10-24 18:26:02,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:26:02,031 INFO L93 Difference]: Finished difference Result 5737 states and 9691 transitions. [2018-10-24 18:26:02,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 18:26:02,034 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 111 [2018-10-24 18:26:02,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:26:02,066 INFO L225 Difference]: With dead ends: 5737 [2018-10-24 18:26:02,067 INFO L226 Difference]: Without dead ends: 3769 [2018-10-24 18:26:02,074 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 18:26:02,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3769 states. [2018-10-24 18:26:02,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3769 to 3685. [2018-10-24 18:26:02,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3685 states. [2018-10-24 18:26:02,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3685 states to 3685 states and 5659 transitions. [2018-10-24 18:26:02,220 INFO L78 Accepts]: Start accepts. Automaton has 3685 states and 5659 transitions. Word has length 111 [2018-10-24 18:26:02,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:26:02,221 INFO L481 AbstractCegarLoop]: Abstraction has 3685 states and 5659 transitions. [2018-10-24 18:26:02,221 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 18:26:02,221 INFO L276 IsEmpty]: Start isEmpty. Operand 3685 states and 5659 transitions. [2018-10-24 18:26:02,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-10-24 18:26:02,230 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:26:02,235 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:26:02,235 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:26:02,236 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:26:02,236 INFO L82 PathProgramCache]: Analyzing trace with hash -1795684626, now seen corresponding path program 1 times [2018-10-24 18:26:02,237 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:26:02,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:26:02,240 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:26:02,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:26:02,240 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:26:02,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:26:02,483 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:26:02,483 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:26:02,484 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 18:26:02,484 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:26:02,485 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 18:26:02,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 18:26:02,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 18:26:02,485 INFO L87 Difference]: Start difference. First operand 3685 states and 5659 transitions. Second operand 5 states. [2018-10-24 18:26:30,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:26:30,309 INFO L93 Difference]: Finished difference Result 13664 states and 21758 transitions. [2018-10-24 18:26:30,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 18:26:30,311 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 125 [2018-10-24 18:26:30,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:26:30,376 INFO L225 Difference]: With dead ends: 13664 [2018-10-24 18:26:30,376 INFO L226 Difference]: Without dead ends: 9985 [2018-10-24 18:26:30,404 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 18:26:30,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9985 states. [2018-10-24 18:26:30,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9985 to 9793. [2018-10-24 18:26:30,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9793 states. [2018-10-24 18:26:30,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9793 states to 9793 states and 14498 transitions. [2018-10-24 18:26:30,689 INFO L78 Accepts]: Start accepts. Automaton has 9793 states and 14498 transitions. Word has length 125 [2018-10-24 18:26:30,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:26:30,690 INFO L481 AbstractCegarLoop]: Abstraction has 9793 states and 14498 transitions. [2018-10-24 18:26:30,690 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 18:26:30,690 INFO L276 IsEmpty]: Start isEmpty. Operand 9793 states and 14498 transitions. [2018-10-24 18:26:30,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-10-24 18:26:30,695 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:26:30,695 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:26:30,696 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:26:30,696 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:26:30,696 INFO L82 PathProgramCache]: Analyzing trace with hash -249536814, now seen corresponding path program 1 times [2018-10-24 18:26:30,696 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:26:30,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:26:30,697 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:26:30,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:26:30,699 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:26:30,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:26:31,058 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 18:26:31,170 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:26:31,170 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:26:31,171 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 18:26:31,171 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:26:31,171 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 18:26:31,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 18:26:31,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 18:26:31,172 INFO L87 Difference]: Start difference. First operand 9793 states and 14498 transitions. Second operand 6 states. [2018-10-24 18:26:45,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:26:45,450 INFO L93 Difference]: Finished difference Result 34187 states and 53800 transitions. [2018-10-24 18:26:45,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:26:45,451 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 143 [2018-10-24 18:26:45,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:26:45,593 INFO L225 Difference]: With dead ends: 34187 [2018-10-24 18:26:45,593 INFO L226 Difference]: Without dead ends: 24400 [2018-10-24 18:26:45,676 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 18:26:45,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24400 states. [2018-10-24 18:26:46,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24400 to 24167. [2018-10-24 18:26:46,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24167 states. [2018-10-24 18:26:46,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24167 states to 24167 states and 34069 transitions. [2018-10-24 18:26:46,337 INFO L78 Accepts]: Start accepts. Automaton has 24167 states and 34069 transitions. Word has length 143 [2018-10-24 18:26:46,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:26:46,338 INFO L481 AbstractCegarLoop]: Abstraction has 24167 states and 34069 transitions. [2018-10-24 18:26:46,338 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 18:26:46,338 INFO L276 IsEmpty]: Start isEmpty. Operand 24167 states and 34069 transitions. [2018-10-24 18:26:46,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-10-24 18:26:46,343 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:26:46,344 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:26:46,344 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:26:46,344 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:26:46,344 INFO L82 PathProgramCache]: Analyzing trace with hash -874612382, now seen corresponding path program 1 times [2018-10-24 18:26:46,345 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:26:46,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:26:46,346 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:26:46,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:26:46,346 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:26:46,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:26:47,042 WARN L179 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 3 [2018-10-24 18:26:47,065 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 4 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:26:47,065 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:26:47,066 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:26:47,067 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 152 with the following transitions: [2018-10-24 18:26:47,071 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], [2807], [2809], [2812], [2820], [2828], [2836], [2844], [2852], [2860], [2868], [2876], [2884], [2892], [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], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3321], [3325], [3329], [3332], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-10-24 18:26:47,177 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:26:47,178 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:26:54,393 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:26:54,418 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:26:54,420 INFO L272 AbstractInterpreter]: Visited 120 different actions 120 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-24 18:26:54,436 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:26:54,437 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:26:57,532 INFO L232 lantSequenceWeakener]: Weakened 136 states. On average, predicates are now at 71.73% of their original sizes. [2018-10-24 18:26:57,532 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 18:26:59,399 INFO L413 sIntCurrentIteration]: We have 150 unified AI predicates [2018-10-24 18:26:59,400 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 18:26:59,401 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 18:26:59,401 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [7] total 16 [2018-10-24 18:26:59,401 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:26:59,401 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-24 18:26:59,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-24 18:26:59,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-10-24 18:26:59,402 INFO L87 Difference]: Start difference. First operand 24167 states and 34069 transitions. Second operand 11 states. Received shutdown request... [2018-10-24 18:29:00,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-24 18:29:00,457 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 18:29:00,463 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 18:29:00,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 06:29:00 BoogieIcfgContainer [2018-10-24 18:29:00,463 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 18:29:00,464 INFO L168 Benchmark]: Toolchain (without parser) took 226499.76 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 2.8 GB in the end (delta: -1.4 GB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-10-24 18:29:00,465 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 18:29:00,466 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2498.07 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-10-24 18:29:00,467 INFO L168 Benchmark]: Boogie Procedure Inliner took 605.36 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 823.1 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. [2018-10-24 18:29:00,468 INFO L168 Benchmark]: Boogie Preprocessor took 419.68 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 7.1 GB. [2018-10-24 18:29:00,468 INFO L168 Benchmark]: RCFGBuilder took 12819.49 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 186.6 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.0 MB). Peak memory consumption was 670.4 MB. Max. memory is 7.1 GB. [2018-10-24 18:29:00,469 INFO L168 Benchmark]: TraceAbstraction took 210151.34 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 2.8 GB in the end (delta: -602.1 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-10-24 18:29:00,474 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2498.07 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 605.36 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 823.1 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 419.68 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 12819.49 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 186.6 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.0 MB). Peak memory consumption was 670.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 210151.34 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 2.8 GB in the end (delta: -602.1 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 96]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 96). Cancelled while BasicCegarLoop was constructing difference of abstraction (24167states) and FLOYD_HOARE automaton (currently 10 states, 11 states before enhancement),while ReachableStatesComputation was computing reachable states (10632 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 210.0s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 194.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2403 SDtfs, 13985 SDslu, 2162 SDs, 0 SdLazy, 25105 SolverSat, 6730 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 143.2s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 187 GetRequests, 151 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24167occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 7.3s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9945846153846153 AbsIntWeakeningRatio, 0.14 AbsIntAvgWeakeningVarsNumRemoved, 38.94 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 510 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 565 NumberOfCodeBlocks, 565 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 560 ConstructedInterpolants, 0 QuantifiedInterpolants, 265054 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 88/112 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown