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/Problem02_label43_false-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 21:15:57,871 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 21:15:57,873 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 21:15:57,885 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 21:15:57,885 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 21:15:57,887 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 21:15:57,888 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 21:15:57,890 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 21:15:57,892 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 21:15:57,893 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 21:15:57,894 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 21:15:57,894 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 21:15:57,895 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 21:15:57,896 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 21:15:57,897 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 21:15:57,898 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 21:15:57,899 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 21:15:57,901 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 21:15:57,903 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 21:15:57,905 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 21:15:57,906 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 21:15:57,907 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 21:15:57,910 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-23 21:15:57,919 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 [2018-10-23 21:15:57,947 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 21:15:57,948 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 21:15:57,949 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 21:15:57,949 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-23 21:15:57,950 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-23 21:15:57,950 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-23 21:15:57,950 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-23 21:15:57,951 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-23 21:15:57,951 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-23 21:15:57,951 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-23 21:15:57,951 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-23 21:15:57,951 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-23 21:15:57,952 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 21:15:57,952 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 21:15:57,953 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 21:15:57,953 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 21:15:57,953 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 21:15:57,953 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 21:15:57,953 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 21:15:57,953 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 21:15:57,955 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 21:15:57,955 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 21:15:57,956 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 21:15:57,956 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 21:15:57,956 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 21:15:57,956 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 21:15:57,956 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 21:15:57,957 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 21:15:57,957 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-23 21:15:57,957 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 21:15:57,957 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 21:15:57,957 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 21:15:57,958 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 21:15:57,958 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-23 21:15:58,035 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 21:15:58,053 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 21:15:58,058 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 21:15:58,059 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 21:15:58,060 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 21:15:58,061 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label43_false-unreach-call_false-termination.c [2018-10-23 21:15:58,123 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e8a87b3a8/ea7bf9721eb642cf9b50f17fdde14026/FLAGe691685f0 [2018-10-23 21:15:58,701 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 21:15:58,702 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label43_false-unreach-call_false-termination.c [2018-10-23 21:15:58,714 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e8a87b3a8/ea7bf9721eb642cf9b50f17fdde14026/FLAGe691685f0 [2018-10-23 21:15:58,732 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e8a87b3a8/ea7bf9721eb642cf9b50f17fdde14026 [2018-10-23 21:15:58,744 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 21:15:58,745 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 21:15:58,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 21:15:58,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 21:15:58,749 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 21:15:58,750 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:15:58" (1/1) ... [2018-10-23 21:15:58,753 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b99fc7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:15:58, skipping insertion in model container [2018-10-23 21:15:58,754 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:15:58" (1/1) ... [2018-10-23 21:15:58,765 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 21:15:58,821 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 21:15:59,308 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 21:15:59,313 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 21:15:59,435 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 21:15:59,456 INFO L193 MainTranslator]: Completed translation [2018-10-23 21:15:59,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:15:59 WrapperNode [2018-10-23 21:15:59,456 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 21:15:59,457 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 21:15:59,458 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 21:15:59,458 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 21:15:59,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:15:59" (1/1) ... [2018-10-23 21:15:59,489 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:15:59" (1/1) ... [2018-10-23 21:15:59,641 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 21:15:59,642 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 21:15:59,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 21:15:59,642 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 21:15:59,653 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:15:59" (1/1) ... [2018-10-23 21:15:59,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:15:59" (1/1) ... [2018-10-23 21:15:59,659 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:15:59" (1/1) ... [2018-10-23 21:15:59,659 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:15:59" (1/1) ... [2018-10-23 21:15:59,696 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:15:59" (1/1) ... [2018-10-23 21:15:59,726 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:15:59" (1/1) ... [2018-10-23 21:15:59,738 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:15:59" (1/1) ... [2018-10-23 21:15:59,758 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 21:15:59,759 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 21:15:59,759 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 21:15:59,760 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 21:15:59,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:15:59" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 21:15:59,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-23 21:15:59,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-23 21:15:59,846 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-23 21:15:59,846 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-23 21:15:59,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 21:15:59,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 21:15:59,847 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-23 21:15:59,847 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-23 21:16:03,118 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 21:16:03,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:16:03 BoogieIcfgContainer [2018-10-23 21:16:03,119 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 21:16:03,123 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 21:16:03,124 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 21:16:03,129 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 21:16:03,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 09:15:58" (1/3) ... [2018-10-23 21:16:03,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49c527ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:16:03, skipping insertion in model container [2018-10-23 21:16:03,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:15:59" (2/3) ... [2018-10-23 21:16:03,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49c527ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:16:03, skipping insertion in model container [2018-10-23 21:16:03,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:16:03" (3/3) ... [2018-10-23 21:16:03,133 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label43_false-unreach-call_false-termination.c [2018-10-23 21:16:03,143 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 21:16:03,153 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 21:16:03,171 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 21:16:03,220 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 21:16:03,221 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 21:16:03,221 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 21:16:03,221 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 21:16:03,221 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 21:16:03,222 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 21:16:03,222 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 21:16:03,222 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 21:16:03,249 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states. [2018-10-23 21:16:03,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-10-23 21:16:03,262 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:16:03,263 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:16:03,266 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:16:03,272 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:16:03,272 INFO L82 PathProgramCache]: Analyzing trace with hash -66400536, now seen corresponding path program 1 times [2018-10-23 21:16:03,274 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 21:16:03,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:16:03,329 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:16:03,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:16:03,329 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 21:16:03,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:16:03,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 21:16:03,949 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:16:03,949 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 21:16:03,949 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 21:16:03,958 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 21:16:03,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 21:16:03,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 21:16:03,981 INFO L87 Difference]: Start difference. First operand 237 states. Second operand 3 states. [2018-10-23 21:16:05,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:16:05,749 INFO L93 Difference]: Finished difference Result 627 states and 1072 transitions. [2018-10-23 21:16:05,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 21:16:05,753 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 92 [2018-10-23 21:16:05,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:16:05,775 INFO L225 Difference]: With dead ends: 627 [2018-10-23 21:16:05,775 INFO L226 Difference]: Without dead ends: 388 [2018-10-23 21:16:05,782 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 21:16:05,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2018-10-23 21:16:05,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 383. [2018-10-23 21:16:05,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2018-10-23 21:16:05,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 619 transitions. [2018-10-23 21:16:05,902 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 619 transitions. Word has length 92 [2018-10-23 21:16:05,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:16:05,903 INFO L481 AbstractCegarLoop]: Abstraction has 383 states and 619 transitions. [2018-10-23 21:16:05,903 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 21:16:05,903 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 619 transitions. [2018-10-23 21:16:05,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-10-23 21:16:05,915 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:16:05,915 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-23 21:16:05,916 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:16:05,916 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:16:05,916 INFO L82 PathProgramCache]: Analyzing trace with hash -1225678731, now seen corresponding path program 1 times [2018-10-23 21:16:05,916 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 21:16:05,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:16:05,919 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:16:05,920 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:16:05,923 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 21:16:05,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:16:06,280 WARN L179 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 9 [2018-10-23 21:16:06,325 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 21:16:06,326 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:16:06,326 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 21:16:06,326 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 21:16:06,328 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 21:16:06,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 21:16:06,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-10-23 21:16:06,329 INFO L87 Difference]: Start difference. First operand 383 states and 619 transitions. Second operand 6 states. [2018-10-23 21:16:09,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:16:09,687 INFO L93 Difference]: Finished difference Result 1497 states and 2584 transitions. [2018-10-23 21:16:09,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-23 21:16:09,690 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 101 [2018-10-23 21:16:09,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:16:09,711 INFO L225 Difference]: With dead ends: 1497 [2018-10-23 21:16:09,711 INFO L226 Difference]: Without dead ends: 1120 [2018-10-23 21:16:09,719 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-10-23 21:16:09,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2018-10-23 21:16:09,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 1106. [2018-10-23 21:16:09,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1106 states. [2018-10-23 21:16:09,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1106 states to 1106 states and 1606 transitions. [2018-10-23 21:16:09,801 INFO L78 Accepts]: Start accepts. Automaton has 1106 states and 1606 transitions. Word has length 101 [2018-10-23 21:16:09,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:16:09,802 INFO L481 AbstractCegarLoop]: Abstraction has 1106 states and 1606 transitions. [2018-10-23 21:16:09,802 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 21:16:09,802 INFO L276 IsEmpty]: Start isEmpty. Operand 1106 states and 1606 transitions. [2018-10-23 21:16:09,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-10-23 21:16:09,812 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:16:09,812 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:16:09,812 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:16:09,813 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:16:09,813 INFO L82 PathProgramCache]: Analyzing trace with hash -619893462, now seen corresponding path program 1 times [2018-10-23 21:16:09,813 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 21:16:09,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:16:09,814 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:16:09,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:16:09,815 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 21:16:09,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:16:10,114 WARN L179 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 7 DAG size of output: 4 [2018-10-23 21:16:10,402 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 21:16:10,403 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 21:16:10,403 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-23 21:16:10,404 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 120 with the following transitions: [2018-10-23 21:16:10,406 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [91], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [407], [409], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-10-23 21:16:10,485 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-23 21:16:10,485 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-23 21:16:19,428 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-23 21:16:19,430 INFO L272 AbstractInterpreter]: Visited 92 different actions 92 times. Never merged. Never widened. Never found a fixpoint. Largest state had 38 variables. [2018-10-23 21:16:19,446 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:16:19,446 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-23 21:16:22,758 INFO L232 lantSequenceWeakener]: Weakened 104 states. On average, predicates are now at 80.87% of their original sizes. [2018-10-23 21:16:22,758 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-23 21:16:26,315 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-23 21:16:26,316 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 21:16:26,316 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [7] total 18 [2018-10-23 21:16:26,317 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 21:16:26,317 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-23 21:16:26,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-23 21:16:26,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2018-10-23 21:16:26,318 INFO L87 Difference]: Start difference. First operand 1106 states and 1606 transitions. Second operand 13 states. [2018-10-23 21:18:04,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:18:04,340 INFO L93 Difference]: Finished difference Result 2506 states and 3585 transitions. [2018-10-23 21:18:04,340 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-10-23 21:18:04,341 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 119 [2018-10-23 21:18:04,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:18:04,350 INFO L225 Difference]: With dead ends: 2506 [2018-10-23 21:18:04,351 INFO L226 Difference]: Without dead ends: 1406 [2018-10-23 21:18:04,355 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 129 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=152, Invalid=400, Unknown=0, NotChecked=0, Total=552 [2018-10-23 21:18:04,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1406 states. [2018-10-23 21:18:04,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1406 to 1253. [2018-10-23 21:18:04,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1253 states. [2018-10-23 21:18:04,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1253 states to 1253 states and 1763 transitions. [2018-10-23 21:18:04,483 INFO L78 Accepts]: Start accepts. Automaton has 1253 states and 1763 transitions. Word has length 119 [2018-10-23 21:18:04,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:18:04,483 INFO L481 AbstractCegarLoop]: Abstraction has 1253 states and 1763 transitions. [2018-10-23 21:18:04,483 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-23 21:18:04,483 INFO L276 IsEmpty]: Start isEmpty. Operand 1253 states and 1763 transitions. [2018-10-23 21:18:04,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2018-10-23 21:18:04,488 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:18:04,489 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-23 21:18:04,489 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:18:04,489 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:18:04,490 INFO L82 PathProgramCache]: Analyzing trace with hash -1340443610, now seen corresponding path program 1 times [2018-10-23 21:18:04,490 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 21:18:04,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:18:04,491 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:18:04,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:18:04,492 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 21:18:04,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:18:04,700 WARN L179 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-23 21:18:04,730 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 21:18:04,731 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 21:18:04,731 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-23 21:18:04,731 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 128 with the following transitions: [2018-10-23 21:18:04,732 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [45], [50], [52], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [407], [409], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-10-23 21:18:04,737 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-23 21:18:04,737 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-23 21:18:26,576 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-23 21:18:26,576 INFO L272 AbstractInterpreter]: Visited 96 different actions 186 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 38 variables. [2018-10-23 21:18:26,584 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:18:26,585 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-23 21:18:30,114 INFO L232 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 85.56% of their original sizes. [2018-10-23 21:18:30,115 INFO L411 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-10-23 21:20:15,372 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 21:20:15,377 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 21:20:15,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 09:20:15 BoogieIcfgContainer [2018-10-23 21:20:15,378 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 21:20:15,379 INFO L168 Benchmark]: Toolchain (without parser) took 256634.75 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.4 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 976.4 MB. Max. memory is 7.1 GB. [2018-10-23 21:20:15,381 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 21:20:15,381 INFO L168 Benchmark]: CACSL2BoogieTranslator took 710.75 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-23 21:20:15,382 INFO L168 Benchmark]: Boogie Procedure Inliner took 183.81 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 735.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -808.4 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. [2018-10-23 21:20:15,383 INFO L168 Benchmark]: Boogie Preprocessor took 117.31 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 21:20:15,384 INFO L168 Benchmark]: RCFGBuilder took 3359.95 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: 105.8 MB). Peak memory consumption was 105.8 MB. Max. memory is 7.1 GB. [2018-10-23 21:20:15,385 INFO L168 Benchmark]: TraceAbstraction took 252254.98 ms. Allocated memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: 1.6 GB). Free memory was 2.1 GB in the beginning and 2.8 GB in the end (delta: -717.2 MB). Peak memory consumption was 911.7 MB. Max. memory is 7.1 GB. [2018-10-23 21:20:15,390 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 710.75 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 183.81 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 735.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -808.4 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 117.31 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 3359.95 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: 105.8 MB). Peak memory consumption was 105.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 252254.98 ms. Allocated memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: 1.6 GB). Free memory was 2.1 GB in the beginning and 2.8 GB in the end (delta: -717.2 MB). Peak memory consumption was 911.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 427]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 427). Cancelled while BasicCegarLoop was analyzing trace of length 128 with TraceHistMax 3,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 17 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 237 locations, 1 error locations. TIMEOUT Result, 252.1s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 103.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 539 SDtfs, 2302 SDslu, 487 SDs, 0 SdLazy, 2200 SolverSat, 562 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 47.5s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 145 GetRequests, 111 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 7.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1253occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 30.8s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9933948184595297 AbsIntWeakeningRatio, 0.25 AbsIntAvgWeakeningVarsNumRemoved, 1497.4344262295083 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 3 MinimizatonAttempts, 172 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 312 NumberOfCodeBlocks, 312 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 309 ConstructedInterpolants, 0 QuantifiedInterpolants, 115634 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 24/30 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown