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/Problem01_label28_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 00:38:54,357 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 00:38:54,359 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 00:38:54,372 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 00:38:54,373 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 00:38:54,374 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 00:38:54,375 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 00:38:54,377 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 00:38:54,378 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 00:38:54,379 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 00:38:54,380 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 00:38:54,380 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 00:38:54,381 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 00:38:54,382 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 00:38:54,383 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 00:38:54,384 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 00:38:54,386 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 00:38:54,388 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 00:38:54,396 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 00:38:54,397 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 00:38:54,398 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 00:38:54,403 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 00:38:54,409 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-27 00:38:54,425 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 [2018-10-27 00:38:54,454 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 00:38:54,454 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 00:38:54,455 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 00:38:54,455 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 00:38:54,455 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 00:38:54,456 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 00:38:54,456 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 00:38:54,456 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 00:38:54,456 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 00:38:54,456 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 00:38:54,456 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 00:38:54,457 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 00:38:54,457 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 00:38:54,458 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 00:38:54,460 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 00:38:54,460 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 00:38:54,460 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 00:38:54,460 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 00:38:54,461 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 00:38:54,461 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 00:38:54,461 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 00:38:54,461 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 00:38:54,461 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 00:38:54,462 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 00:38:54,462 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:38:54,462 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 00:38:54,462 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 00:38:54,462 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 00:38:54,462 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 00:38:54,464 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 00:38:54,464 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 00:38:54,464 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 00:38:54,465 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 00:38:54,465 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 00:38:54,539 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 00:38:54,558 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 00:38:54,562 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 00:38:54,563 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 00:38:54,564 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 00:38:54,565 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label28_true-unreach-call_false-termination.c [2018-10-27 00:38:54,619 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3ec9a276e/e3f8e10a4e6b468d8b24f4c402f2b4c2/FLAGc93bd3f09 [2018-10-27 00:38:55,197 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 00:38:55,198 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label28_true-unreach-call_false-termination.c [2018-10-27 00:38:55,212 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3ec9a276e/e3f8e10a4e6b468d8b24f4c402f2b4c2/FLAGc93bd3f09 [2018-10-27 00:38:55,230 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3ec9a276e/e3f8e10a4e6b468d8b24f4c402f2b4c2 [2018-10-27 00:38:55,245 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 00:38:55,248 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 00:38:55,250 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 00:38:55,250 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 00:38:55,254 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 00:38:55,256 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:38:55" (1/1) ... [2018-10-27 00:38:55,259 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14b692d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:38:55, skipping insertion in model container [2018-10-27 00:38:55,259 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:38:55" (1/1) ... [2018-10-27 00:38:55,272 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 00:38:55,341 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 00:38:55,817 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:38:55,822 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 00:38:55,943 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:38:55,964 INFO L193 MainTranslator]: Completed translation [2018-10-27 00:38:55,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:38:55 WrapperNode [2018-10-27 00:38:55,965 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 00:38:55,967 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 00:38:55,967 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 00:38:55,967 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 00:38:55,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:38:55" (1/1) ... [2018-10-27 00:38:56,000 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:38:55" (1/1) ... [2018-10-27 00:38:56,216 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 00:38:56,217 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 00:38:56,217 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 00:38:56,217 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 00:38:56,237 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:38:55" (1/1) ... [2018-10-27 00:38:56,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:38:55" (1/1) ... [2018-10-27 00:38:56,254 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:38:55" (1/1) ... [2018-10-27 00:38:56,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:38:55" (1/1) ... [2018-10-27 00:38:56,304 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:38:55" (1/1) ... [2018-10-27 00:38:56,331 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:38:55" (1/1) ... [2018-10-27 00:38:56,337 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:38:55" (1/1) ... [2018-10-27 00:38:56,346 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 00:38:56,347 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 00:38:56,347 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 00:38:56,347 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 00:38:56,349 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:38:55" (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 [2018-10-27 00:38:56,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 00:38:56,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 00:38:56,426 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 00:38:56,427 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 00:38:56,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 00:38:56,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 00:38:56,427 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 00:38:56,428 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 00:38:59,873 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 00:38:59,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:38:59 BoogieIcfgContainer [2018-10-27 00:38:59,878 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 00:38:59,880 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 00:38:59,880 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 00:38:59,884 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 00:38:59,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:38:55" (1/3) ... [2018-10-27 00:38:59,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@518c741 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:38:59, skipping insertion in model container [2018-10-27 00:38:59,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:38:55" (2/3) ... [2018-10-27 00:38:59,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@518c741 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:38:59, skipping insertion in model container [2018-10-27 00:38:59,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:38:59" (3/3) ... [2018-10-27 00:38:59,890 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label28_true-unreach-call_false-termination.c [2018-10-27 00:38:59,903 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 00:38:59,920 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 00:38:59,940 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 00:38:59,994 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 00:38:59,995 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 00:38:59,995 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 00:38:59,995 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 00:38:59,995 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 00:38:59,995 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 00:38:59,996 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 00:38:59,996 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 00:39:00,032 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states. [2018-10-27 00:39:00,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-10-27 00:39:00,043 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:39:00,045 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:39:00,047 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:39:00,053 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:39:00,054 INFO L82 PathProgramCache]: Analyzing trace with hash 1379004888, now seen corresponding path program 1 times [2018-10-27 00:39:00,056 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:39:00,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:39:00,117 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:39:00,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:39:00,118 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:39:00,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:39:00,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:39:00,882 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:39:00,883 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 00:39:00,883 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:39:00,889 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 00:39:00,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 00:39:00,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 00:39:00,909 INFO L87 Difference]: Start difference. First operand 208 states. Second operand 4 states. [2018-10-27 00:39:03,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:39:03,757 INFO L93 Difference]: Finished difference Result 702 states and 1227 transitions. [2018-10-27 00:39:03,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 00:39:03,762 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 100 [2018-10-27 00:39:03,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:39:03,785 INFO L225 Difference]: With dead ends: 702 [2018-10-27 00:39:03,785 INFO L226 Difference]: Without dead ends: 488 [2018-10-27 00:39:03,793 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 00:39:03,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2018-10-27 00:39:03,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 340. [2018-10-27 00:39:03,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2018-10-27 00:39:03,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 565 transitions. [2018-10-27 00:39:03,878 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 565 transitions. Word has length 100 [2018-10-27 00:39:03,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:39:03,879 INFO L481 AbstractCegarLoop]: Abstraction has 340 states and 565 transitions. [2018-10-27 00:39:03,879 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 00:39:03,880 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 565 transitions. [2018-10-27 00:39:03,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-10-27 00:39:03,887 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:39:03,887 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-27 00:39:03,887 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:39:03,888 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:39:03,888 INFO L82 PathProgramCache]: Analyzing trace with hash 2021408823, now seen corresponding path program 1 times [2018-10-27 00:39:03,888 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:39:03,889 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:39:03,890 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:39:03,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:39:03,890 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:39:03,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:39:04,061 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:39:04,062 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:39:04,062 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 00:39:04,062 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:39:04,065 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 00:39:04,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 00:39:04,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 00:39:04,066 INFO L87 Difference]: Start difference. First operand 340 states and 565 transitions. Second operand 6 states. [2018-10-27 00:39:06,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:39:06,269 INFO L93 Difference]: Finished difference Result 1070 states and 1865 transitions. [2018-10-27 00:39:06,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 00:39:06,273 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 111 [2018-10-27 00:39:06,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:39:06,282 INFO L225 Difference]: With dead ends: 1070 [2018-10-27 00:39:06,282 INFO L226 Difference]: Without dead ends: 736 [2018-10-27 00:39:06,286 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 00:39:06,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2018-10-27 00:39:06,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 719. [2018-10-27 00:39:06,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 719 states. [2018-10-27 00:39:06,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 1163 transitions. [2018-10-27 00:39:06,348 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 1163 transitions. Word has length 111 [2018-10-27 00:39:06,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:39:06,349 INFO L481 AbstractCegarLoop]: Abstraction has 719 states and 1163 transitions. [2018-10-27 00:39:06,349 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 00:39:06,349 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 1163 transitions. [2018-10-27 00:39:06,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-10-27 00:39:06,354 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:39:06,355 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:39:06,355 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:39:06,355 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:39:06,356 INFO L82 PathProgramCache]: Analyzing trace with hash 1410703731, now seen corresponding path program 1 times [2018-10-27 00:39:06,356 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:39:06,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:39:06,357 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:39:06,358 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:39:06,358 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:39:06,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:39:06,587 WARN L179 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 00:39:06,635 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:39:06,635 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:39:06,636 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 00:39:06,636 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:39:06,637 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 00:39:06,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 00:39:06,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 00:39:06,638 INFO L87 Difference]: Start difference. First operand 719 states and 1163 transitions. Second operand 6 states. [2018-10-27 00:39:09,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:39:09,098 INFO L93 Difference]: Finished difference Result 2165 states and 3625 transitions. [2018-10-27 00:39:09,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 00:39:09,101 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 124 [2018-10-27 00:39:09,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:39:09,113 INFO L225 Difference]: With dead ends: 2165 [2018-10-27 00:39:09,113 INFO L226 Difference]: Without dead ends: 1452 [2018-10-27 00:39:09,119 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 [2018-10-27 00:39:09,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1452 states. [2018-10-27 00:39:09,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1452 to 1436. [2018-10-27 00:39:09,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1436 states. [2018-10-27 00:39:09,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 2226 transitions. [2018-10-27 00:39:09,174 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 2226 transitions. Word has length 124 [2018-10-27 00:39:09,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:39:09,175 INFO L481 AbstractCegarLoop]: Abstraction has 1436 states and 2226 transitions. [2018-10-27 00:39:09,175 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 00:39:09,175 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 2226 transitions. [2018-10-27 00:39:09,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-10-27 00:39:09,181 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:39:09,181 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-27 00:39:09,182 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:39:09,182 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:39:09,182 INFO L82 PathProgramCache]: Analyzing trace with hash -1532774618, now seen corresponding path program 1 times [2018-10-27 00:39:09,182 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:39:09,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:39:09,185 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:39:09,185 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:39:09,185 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:39:09,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:39:09,387 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 40 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:39:09,387 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 00:39:09,388 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 00:39:09,389 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 137 with the following transitions: [2018-10-27 00:39:09,391 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [17], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [65], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [437], [439], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-10-27 00:39:09,511 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 00:39:09,512 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 00:39:42,674 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 00:39:42,676 INFO L272 AbstractInterpreter]: Visited 104 different actions 169 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-10-27 00:39:42,711 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:39:42,711 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 00:39:52,713 INFO L227 lantSequenceWeakener]: Weakened 26 states. On average, predicates are now at 82.02% of their original sizes. [2018-10-27 00:39:52,714 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 00:40:53,761 INFO L415 sIntCurrentIteration]: We unified 135 AI predicates to 135 [2018-10-27 00:40:53,761 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 00:40:53,762 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 00:40:53,763 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [6] total 19 [2018-10-27 00:40:53,763 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:40:53,763 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-10-27 00:40:53,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-10-27 00:40:53,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2018-10-27 00:40:53,764 INFO L87 Difference]: Start difference. First operand 1436 states and 2226 transitions. Second operand 15 states. Received shutdown request... [2018-10-27 00:43:16,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-10-27 00:43:16,413 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 00:43:16,419 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 00:43:16,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 12:43:16 BoogieIcfgContainer [2018-10-27 00:43:16,420 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 00:43:16,421 INFO L168 Benchmark]: Toolchain (without parser) took 261174.61 ms. Allocated memory was 1.5 GB in the beginning and 2.9 GB in the end (delta: 1.4 GB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -643.8 MB). Peak memory consumption was 726.7 MB. Max. memory is 7.1 GB. [2018-10-27 00:43:16,423 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 00:43:16,423 INFO L168 Benchmark]: CACSL2BoogieTranslator took 716.24 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. [2018-10-27 00:43:16,424 INFO L168 Benchmark]: Boogie Procedure Inliner took 250.19 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 707.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -781.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. [2018-10-27 00:43:16,425 INFO L168 Benchmark]: Boogie Preprocessor took 129.19 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 00:43:16,426 INFO L168 Benchmark]: RCFGBuilder took 3531.72 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 125.0 MB). Peak memory consumption was 125.0 MB. Max. memory is 7.1 GB. [2018-10-27 00:43:16,427 INFO L168 Benchmark]: TraceAbstraction took 256539.70 ms. Allocated memory was 2.2 GB in the beginning and 2.9 GB in the end (delta: 662.7 MB). Free memory was 2.0 GB in the beginning and 2.0 GB in the end (delta: -19.5 MB). Peak memory consumption was 643.2 MB. Max. memory is 7.1 GB. [2018-10-27 00:43:16,432 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 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 716.24 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 250.19 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 707.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -781.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 129.19 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 3531.72 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 125.0 MB). Peak memory consumption was 125.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 256539.70 ms. Allocated memory was 2.2 GB in the beginning and 2.9 GB in the end (delta: 662.7 MB). Free memory was 2.0 GB in the beginning and 2.0 GB in the end (delta: -19.5 MB). Peak memory consumption was 643.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 455]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 455). Cancelled while BasicCegarLoop was constructing difference of abstraction (1436states) and FLOYD_HOARE automaton (currently 21 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (362 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 208 locations, 1 error locations. TIMEOUT Result, 256.4s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 150.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 313 SDtfs, 2099 SDslu, 310 SDs, 0 SdLazy, 2890 SolverSat, 710 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 57.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 170 GetRequests, 117 SyntacticMatches, 15 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 72.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1436occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 33.3s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9934443153955349 AbsIntWeakeningRatio, 0.25925925925925924 AbsIntAvgWeakeningVarsNumRemoved, 180.47407407407408 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 181 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 471 NumberOfCodeBlocks, 471 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 467 ConstructedInterpolants, 0 QuantifiedInterpolants, 163815 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 69/71 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown