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/Problem14_label29_false-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 18:31:10,097 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 18:31:10,102 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 18:31:10,117 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 18:31:10,117 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 18:31:10,118 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 18:31:10,120 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 18:31:10,122 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 18:31:10,123 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 18:31:10,124 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 18:31:10,125 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 18:31:10,125 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 18:31:10,126 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 18:31:10,127 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 18:31:10,128 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 18:31:10,129 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 18:31:10,130 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 18:31:10,132 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 18:31:10,134 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 18:31:10,135 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 18:31:10,136 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 18:31:10,137 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 18:31:10,140 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 18:31:10,149 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 18:31:10,164 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 18:31:10,165 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 18:31:10,165 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 18:31:10,166 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 18:31:10,166 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 18:31:10,166 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 18:31:10,166 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 18:31:10,166 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 18:31:10,167 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 18:31:10,167 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 18:31:10,167 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 18:31:10,167 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 18:31:10,168 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 18:31:10,168 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 18:31:10,168 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 18:31:10,168 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 18:31:10,169 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 18:31:10,169 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 18:31:10,169 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 18:31:10,169 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 18:31:10,169 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 18:31:10,170 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 18:31:10,170 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 18:31:10,170 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 18:31:10,170 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 18:31:10,170 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 18:31:10,170 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 18:31:10,171 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 18:31:10,171 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 18:31:10,171 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 18:31:10,171 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 18:31:10,171 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 18:31:10,172 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 18:31:10,172 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 18:31:10,217 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 18:31:10,241 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 18:31:10,245 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 18:31:10,247 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 18:31:10,247 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 18:31:10,248 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label29_false-unreach-call_false-termination.c [2018-10-24 18:31:10,324 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/214d7318f/b1d24699ad374f0db2b27f6a6cea0be7/FLAG9396a2a95 [2018-10-24 18:31:10,880 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 18:31:10,881 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label29_false-unreach-call_false-termination.c [2018-10-24 18:31:10,914 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/214d7318f/b1d24699ad374f0db2b27f6a6cea0be7/FLAG9396a2a95 [2018-10-24 18:31:10,948 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/214d7318f/b1d24699ad374f0db2b27f6a6cea0be7 [2018-10-24 18:31:10,961 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 18:31:10,963 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 18:31:10,964 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 18:31:10,964 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 18:31:10,968 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 18:31:10,970 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:31:10" (1/1) ... [2018-10-24 18:31:10,973 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47c62ff2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:31:10, skipping insertion in model container [2018-10-24 18:31:10,973 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:31:10" (1/1) ... [2018-10-24 18:31:10,985 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 18:31:11,051 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 18:31:11,544 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:31:11,548 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 18:31:11,718 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:31:11,737 INFO L193 MainTranslator]: Completed translation [2018-10-24 18:31:11,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:31:11 WrapperNode [2018-10-24 18:31:11,737 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 18:31:11,739 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 18:31:11,739 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 18:31:11,739 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 18:31:11,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:31:11" (1/1) ... [2018-10-24 18:31:11,771 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:31:11" (1/1) ... [2018-10-24 18:31:11,957 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 18:31:11,958 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 18:31:11,958 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 18:31:11,958 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 18:31:11,970 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:31:11" (1/1) ... [2018-10-24 18:31:11,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:31:11" (1/1) ... [2018-10-24 18:31:11,977 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:31:11" (1/1) ... [2018-10-24 18:31:11,977 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:31:11" (1/1) ... [2018-10-24 18:31:12,022 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:31:11" (1/1) ... [2018-10-24 18:31:12,052 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:31:11" (1/1) ... [2018-10-24 18:31:12,068 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:31:11" (1/1) ... [2018-10-24 18:31:12,082 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 18:31:12,084 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 18:31:12,084 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 18:31:12,084 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 18:31:12,085 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:31:11" (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 18:31:12,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 18:31:12,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 18:31:12,161 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 18:31:12,161 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 18:31:12,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 18:31:12,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 18:31:12,162 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 18:31:12,162 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 18:31:15,746 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 18:31:15,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:31:15 BoogieIcfgContainer [2018-10-24 18:31:15,752 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 18:31:15,754 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 18:31:15,754 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 18:31:15,758 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 18:31:15,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:31:10" (1/3) ... [2018-10-24 18:31:15,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44ea2d6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:31:15, skipping insertion in model container [2018-10-24 18:31:15,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:31:11" (2/3) ... [2018-10-24 18:31:15,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44ea2d6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:31:15, skipping insertion in model container [2018-10-24 18:31:15,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:31:15" (3/3) ... [2018-10-24 18:31:15,764 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label29_false-unreach-call_false-termination.c [2018-10-24 18:31:15,774 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 18:31:15,784 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 18:31:15,800 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 18:31:15,840 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 18:31:15,840 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 18:31:15,840 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 18:31:15,841 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 18:31:15,841 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 18:31:15,841 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 18:31:15,841 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 18:31:15,841 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 18:31:15,869 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-10-24 18:31:15,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-10-24 18:31:15,878 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:31:15,879 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] [2018-10-24 18:31:15,882 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:31:15,887 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:31:15,887 INFO L82 PathProgramCache]: Analyzing trace with hash -1296810127, now seen corresponding path program 1 times [2018-10-24 18:31:15,889 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:31:15,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:31:15,947 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:31:15,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:31:15,947 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:31:16,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:31:16,317 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 18:31:16,320 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:31:16,320 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 18:31:16,320 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:31:16,327 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 18:31:16,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 18:31:16,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:31:16,348 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 4 states. [2018-10-24 18:31:19,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:31:19,493 INFO L93 Difference]: Finished difference Result 894 states and 1611 transitions. [2018-10-24 18:31:19,495 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 18:31:19,497 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2018-10-24 18:31:19,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:31:19,519 INFO L225 Difference]: With dead ends: 894 [2018-10-24 18:31:19,519 INFO L226 Difference]: Without dead ends: 633 [2018-10-24 18:31:19,528 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 18:31:19,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2018-10-24 18:31:19,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 633. [2018-10-24 18:31:19,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 633 states. [2018-10-24 18:31:19,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 962 transitions. [2018-10-24 18:31:19,636 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 962 transitions. Word has length 23 [2018-10-24 18:31:19,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:31:19,637 INFO L481 AbstractCegarLoop]: Abstraction has 633 states and 962 transitions. [2018-10-24 18:31:19,637 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 18:31:19,637 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 962 transitions. [2018-10-24 18:31:19,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-10-24 18:31:19,645 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:31:19,646 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:31:19,646 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:31:19,647 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:31:19,647 INFO L82 PathProgramCache]: Analyzing trace with hash -1722550117, now seen corresponding path program 1 times [2018-10-24 18:31:19,647 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:31:19,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:31:19,649 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:31:19,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:31:19,649 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:31:19,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:31:20,042 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:31:20,042 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:31:20,043 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 18:31:20,043 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:31:20,045 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 18:31:20,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 18:31:20,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:31:20,046 INFO L87 Difference]: Start difference. First operand 633 states and 962 transitions. Second operand 4 states. [2018-10-24 18:31:23,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:31:23,822 INFO L93 Difference]: Finished difference Result 2170 states and 3490 transitions. [2018-10-24 18:31:23,824 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 18:31:23,825 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 136 [2018-10-24 18:31:23,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:31:23,842 INFO L225 Difference]: With dead ends: 2170 [2018-10-24 18:31:23,842 INFO L226 Difference]: Without dead ends: 1543 [2018-10-24 18:31:23,848 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:31:23,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1543 states. [2018-10-24 18:31:23,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1543 to 1543. [2018-10-24 18:31:23,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1543 states. [2018-10-24 18:31:23,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2271 transitions. [2018-10-24 18:31:23,924 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2271 transitions. Word has length 136 [2018-10-24 18:31:23,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:31:23,925 INFO L481 AbstractCegarLoop]: Abstraction has 1543 states and 2271 transitions. [2018-10-24 18:31:23,925 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 18:31:23,925 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2271 transitions. [2018-10-24 18:31:23,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2018-10-24 18:31:23,936 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:31:23,936 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 18:31:23,936 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:31:23,936 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:31:23,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1034192261, now seen corresponding path program 1 times [2018-10-24 18:31:23,937 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:31:23,938 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:31:23,938 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:31:23,938 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:31:23,938 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:31:23,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:31:24,498 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 32 proven. 70 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 18:31:24,499 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:31:24,499 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:31:24,500 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 212 with the following transitions: [2018-10-24 18:31:24,502 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [85], [87], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [514], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [666], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-10-24 18:31:24,586 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:31:24,586 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:31:27,728 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:31:30,474 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:31:30,476 INFO L272 AbstractInterpreter]: Visited 118 different actions 118 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-24 18:31:30,520 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:31:30,521 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:31:32,897 INFO L232 lantSequenceWeakener]: Weakened 203 states. On average, predicates are now at 77.48% of their original sizes. [2018-10-24 18:31:32,897 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 18:31:33,272 INFO L413 sIntCurrentIteration]: We have 210 unified AI predicates [2018-10-24 18:31:33,273 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 18:31:33,274 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 18:31:33,274 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2018-10-24 18:31:33,274 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:31:33,275 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 18:31:33,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 18:31:33,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 18:31:33,276 INFO L87 Difference]: Start difference. First operand 1543 states and 2271 transitions. Second operand 7 states. [2018-10-24 18:32:01,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:32:01,403 INFO L93 Difference]: Finished difference Result 3265 states and 4776 transitions. [2018-10-24 18:32:01,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:32:01,404 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 211 [2018-10-24 18:32:01,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:32:01,413 INFO L225 Difference]: With dead ends: 3265 [2018-10-24 18:32:01,413 INFO L226 Difference]: Without dead ends: 1728 [2018-10-24 18:32:01,418 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 211 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-24 18:32:01,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1728 states. [2018-10-24 18:32:01,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1728 to 1726. [2018-10-24 18:32:01,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1726 states. [2018-10-24 18:32:01,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1726 states to 1726 states and 2461 transitions. [2018-10-24 18:32:01,471 INFO L78 Accepts]: Start accepts. Automaton has 1726 states and 2461 transitions. Word has length 211 [2018-10-24 18:32:01,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:32:01,472 INFO L481 AbstractCegarLoop]: Abstraction has 1726 states and 2461 transitions. [2018-10-24 18:32:01,472 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 18:32:01,472 INFO L276 IsEmpty]: Start isEmpty. Operand 1726 states and 2461 transitions. [2018-10-24 18:32:01,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2018-10-24 18:32:01,484 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:32:01,484 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:32:01,485 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:32:01,485 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:32:01,485 INFO L82 PathProgramCache]: Analyzing trace with hash 931255223, now seen corresponding path program 1 times [2018-10-24 18:32:01,485 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:32:01,486 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:32:01,486 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:32:01,487 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:32:01,487 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:32:01,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:32:02,114 WARN L179 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 18:32:02,812 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 136 proven. 142 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 18:32:02,813 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:32:02,813 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:32:02,813 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 297 with the following transitions: [2018-10-24 18:32:02,814 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [85], [87], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [514], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [554], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [666], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-10-24 18:32:02,821 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:32:02,821 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:32:04,905 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:32:09,178 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:32:09,178 INFO L272 AbstractInterpreter]: Visited 122 different actions 237 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 18:32:09,189 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:32:09,189 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:32:11,678 INFO L232 lantSequenceWeakener]: Weakened 76 states. On average, predicates are now at 78.22% of their original sizes. [2018-10-24 18:32:11,678 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 18:33:00,278 INFO L413 sIntCurrentIteration]: We have 295 unified AI predicates [2018-10-24 18:33:00,278 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 18:33:00,279 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 18:33:00,279 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [12] total 29 [2018-10-24 18:33:00,279 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:33:00,280 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-10-24 18:33:00,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-10-24 18:33:00,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2018-10-24 18:33:00,281 INFO L87 Difference]: Start difference. First operand 1726 states and 2461 transitions. Second operand 19 states. Received shutdown request... [2018-10-24 18:35:10,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-10-24 18:35:10,896 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 18:35:10,902 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 18:35:10,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 06:35:10 BoogieIcfgContainer [2018-10-24 18:35:10,902 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 18:35:10,903 INFO L168 Benchmark]: Toolchain (without parser) took 239941.87 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -257.6 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2018-10-24 18:35:10,905 INFO L168 Benchmark]: CDTParser took 0.19 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 18:35:10,905 INFO L168 Benchmark]: CACSL2BoogieTranslator took 774.19 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-10-24 18:35:10,906 INFO L168 Benchmark]: Boogie Procedure Inliner took 219.21 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 725.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -816.6 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2018-10-24 18:35:10,907 INFO L168 Benchmark]: Boogie Preprocessor took 125.14 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: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. [2018-10-24 18:35:10,908 INFO L168 Benchmark]: RCFGBuilder took 3669.35 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 125.1 MB). Peak memory consumption was 125.1 MB. Max. memory is 7.1 GB. [2018-10-24 18:35:10,909 INFO L168 Benchmark]: TraceAbstraction took 235148.68 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.1 GB in the beginning and 1.7 GB in the end (delta: 366.7 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-10-24 18:35:10,914 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 774.19 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 219.21 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 725.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -816.6 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 125.14 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: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3669.35 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 125.1 MB). Peak memory consumption was 125.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 235148.68 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.1 GB in the beginning and 1.7 GB in the end (delta: 366.7 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 52]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 52). Cancelled while BasicCegarLoop was constructing difference of abstraction (1726states) and FLOYD_HOARE automaton (currently 23 states, 19 states before enhancement),while ReachableStatesComputation was computing reachable states (3674 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. TIMEOUT Result, 235.0s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 165.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 786 SDtfs, 3581 SDslu, 776 SDs, 0 SdLazy, 5208 SolverSat, 927 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 72.2s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 524 GetRequests, 430 SyntacticMatches, 60 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 50.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1726occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 12.3s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9951607117233461 AbsIntWeakeningRatio, 0.11485148514851486 AbsIntAvgWeakeningVarsNumRemoved, 583.6217821782178 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 666 NumberOfCodeBlocks, 666 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 662 ConstructedInterpolants, 0 QuantifiedInterpolants, 1846257 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 194/406 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown