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/Problem17_label14_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 03:30:59,916 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 03:30:59,918 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 03:30:59,930 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 03:30:59,930 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 03:30:59,931 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 03:30:59,933 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 03:30:59,935 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 03:30:59,937 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 03:30:59,938 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 03:30:59,939 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 03:30:59,939 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 03:30:59,940 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 03:30:59,941 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 03:30:59,942 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 03:30:59,943 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 03:30:59,944 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 03:30:59,946 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 03:30:59,948 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 03:30:59,950 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 03:30:59,951 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 03:30:59,952 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 03:30:59,955 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-27 03:30:59,965 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 03:30:59,981 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 03:30:59,981 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 03:30:59,982 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 03:30:59,982 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 03:30:59,983 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 03:30:59,983 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 03:30:59,983 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 03:30:59,983 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 03:30:59,984 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 03:30:59,984 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 03:30:59,984 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 03:30:59,984 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 03:30:59,985 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 03:30:59,985 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 03:30:59,985 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 03:30:59,986 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 03:30:59,986 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 03:30:59,986 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 03:30:59,986 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 03:30:59,986 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 03:30:59,987 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 03:30:59,987 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 03:30:59,987 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 03:30:59,987 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 03:30:59,987 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 03:30:59,988 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 03:30:59,988 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 03:30:59,988 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 03:30:59,988 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 03:30:59,988 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 03:30:59,989 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 03:30:59,989 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 03:30:59,989 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 03:30:59,989 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 03:31:00,037 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 03:31:00,050 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 03:31:00,054 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 03:31:00,056 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 03:31:00,056 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 03:31:00,057 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label14_true-unreach-call.c [2018-10-27 03:31:00,113 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/6a597c8ec/fa1dee4981c24260ae58d0bf90b0b0b2/FLAGfd5716e9c [2018-10-27 03:31:00,872 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 03:31:00,873 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label14_true-unreach-call.c [2018-10-27 03:31:00,908 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/6a597c8ec/fa1dee4981c24260ae58d0bf90b0b0b2/FLAGfd5716e9c [2018-10-27 03:31:00,929 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/6a597c8ec/fa1dee4981c24260ae58d0bf90b0b0b2 [2018-10-27 03:31:00,942 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 03:31:00,944 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 03:31:00,945 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 03:31:00,945 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 03:31:00,953 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 03:31:00,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:31:00" (1/1) ... [2018-10-27 03:31:00,957 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25131977 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:31:00, skipping insertion in model container [2018-10-27 03:31:00,957 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:31:00" (1/1) ... [2018-10-27 03:31:00,969 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 03:31:01,096 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 03:31:02,208 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 03:31:02,213 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 03:31:02,593 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 03:31:02,612 INFO L193 MainTranslator]: Completed translation [2018-10-27 03:31:02,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:31:02 WrapperNode [2018-10-27 03:31:02,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 03:31:02,614 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 03:31:02,614 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 03:31:02,614 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 03:31:02,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:31:02" (1/1) ... [2018-10-27 03:31:02,679 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:31:02" (1/1) ... [2018-10-27 03:31:03,071 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 03:31:03,071 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 03:31:03,071 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 03:31:03,072 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 03:31:03,083 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:31:02" (1/1) ... [2018-10-27 03:31:03,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:31:02" (1/1) ... [2018-10-27 03:31:03,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:31:02" (1/1) ... [2018-10-27 03:31:03,102 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:31:02" (1/1) ... [2018-10-27 03:31:03,217 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:31:02" (1/1) ... [2018-10-27 03:31:03,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:31:02" (1/1) ... [2018-10-27 03:31:03,295 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:31:02" (1/1) ... [2018-10-27 03:31:03,348 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 03:31:03,349 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 03:31:03,349 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 03:31:03,349 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 03:31:03,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:31:02" (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 03:31:03,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 03:31:03,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 03:31:03,420 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 03:31:03,420 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 03:31:03,420 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 03:31:03,420 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 03:31:03,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 03:31:03,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 03:31:03,421 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 03:31:03,421 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 03:31:15,324 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 03:31:15,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:31:15 BoogieIcfgContainer [2018-10-27 03:31:15,325 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 03:31:15,330 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 03:31:15,330 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 03:31:15,333 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 03:31:15,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:31:00" (1/3) ... [2018-10-27 03:31:15,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72d2a2ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:31:15, skipping insertion in model container [2018-10-27 03:31:15,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:31:02" (2/3) ... [2018-10-27 03:31:15,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72d2a2ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:31:15, skipping insertion in model container [2018-10-27 03:31:15,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:31:15" (3/3) ... [2018-10-27 03:31:15,341 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label14_true-unreach-call.c [2018-10-27 03:31:15,351 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 03:31:15,368 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 03:31:15,388 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 03:31:15,443 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 03:31:15,444 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 03:31:15,444 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 03:31:15,444 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 03:31:15,444 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 03:31:15,444 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 03:31:15,445 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 03:31:15,445 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 03:31:15,478 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-10-27 03:31:15,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-10-27 03:31:15,490 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:31:15,491 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] [2018-10-27 03:31:15,493 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:31:15,500 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:31:15,500 INFO L82 PathProgramCache]: Analyzing trace with hash 104391076, now seen corresponding path program 1 times [2018-10-27 03:31:15,503 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:31:15,551 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:31:15,551 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:31:15,551 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:31:15,552 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:31:15,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:31:16,060 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 03:31:16,063 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:31:16,063 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 03:31:16,063 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:31:16,069 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 03:31:16,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 03:31:16,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 03:31:16,089 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-10-27 03:31:29,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:31:29,434 INFO L93 Difference]: Finished difference Result 2162 states and 4007 transitions. [2018-10-27 03:31:29,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 03:31:29,440 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2018-10-27 03:31:29,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:31:29,483 INFO L225 Difference]: With dead ends: 2162 [2018-10-27 03:31:29,483 INFO L226 Difference]: Without dead ends: 1552 [2018-10-27 03:31:29,496 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 [2018-10-27 03:31:29,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1552 states. [2018-10-27 03:31:29,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1552 to 1525. [2018-10-27 03:31:29,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1525 states. [2018-10-27 03:31:29,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 2696 transitions. [2018-10-27 03:31:29,674 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 2696 transitions. Word has length 54 [2018-10-27 03:31:29,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:31:29,675 INFO L481 AbstractCegarLoop]: Abstraction has 1525 states and 2696 transitions. [2018-10-27 03:31:29,676 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 03:31:29,677 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 2696 transitions. [2018-10-27 03:31:29,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-10-27 03:31:29,699 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:31:29,699 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:31:29,700 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:31:29,700 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:31:29,700 INFO L82 PathProgramCache]: Analyzing trace with hash -733218574, now seen corresponding path program 1 times [2018-10-27 03:31:29,700 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:31:29,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:31:29,707 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:31:29,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:31:29,708 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:31:29,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:31:30,416 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:31:30,417 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:31:30,417 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 03:31:30,417 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:31:30,420 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 03:31:30,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 03:31:30,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-27 03:31:30,420 INFO L87 Difference]: Start difference. First operand 1525 states and 2696 transitions. Second operand 6 states. [2018-10-27 03:31:55,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:31:55,995 INFO L93 Difference]: Finished difference Result 5787 states and 10682 transitions. [2018-10-27 03:31:55,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 03:31:55,997 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 133 [2018-10-27 03:31:55,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:31:56,036 INFO L225 Difference]: With dead ends: 5787 [2018-10-27 03:31:56,036 INFO L226 Difference]: Without dead ends: 4268 [2018-10-27 03:31:56,059 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-27 03:31:56,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4268 states. [2018-10-27 03:31:56,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4268 to 4242. [2018-10-27 03:31:56,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4242 states. [2018-10-27 03:31:56,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4242 states to 4242 states and 6363 transitions. [2018-10-27 03:31:56,201 INFO L78 Accepts]: Start accepts. Automaton has 4242 states and 6363 transitions. Word has length 133 [2018-10-27 03:31:56,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:31:56,202 INFO L481 AbstractCegarLoop]: Abstraction has 4242 states and 6363 transitions. [2018-10-27 03:31:56,202 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 03:31:56,202 INFO L276 IsEmpty]: Start isEmpty. Operand 4242 states and 6363 transitions. [2018-10-27 03:31:56,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-10-27 03:31:56,209 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:31:56,210 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-27 03:31:56,210 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:31:56,210 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:31:56,211 INFO L82 PathProgramCache]: Analyzing trace with hash 9362786, now seen corresponding path program 1 times [2018-10-27 03:31:56,211 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:31:56,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:31:56,212 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:31:56,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:31:56,213 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:31:56,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:31:56,451 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:31:56,451 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:31:56,451 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 03:31:56,451 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:31:56,452 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 03:31:56,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 03:31:56,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 03:31:56,453 INFO L87 Difference]: Start difference. First operand 4242 states and 6363 transitions. Second operand 6 states. [2018-10-27 03:32:02,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:32:02,914 INFO L93 Difference]: Finished difference Result 12710 states and 20712 transitions. [2018-10-27 03:32:02,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 03:32:02,915 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 134 [2018-10-27 03:32:02,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:32:02,982 INFO L225 Difference]: With dead ends: 12710 [2018-10-27 03:32:02,982 INFO L226 Difference]: Without dead ends: 8474 [2018-10-27 03:32:03,010 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 03:32:03,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8474 states. [2018-10-27 03:32:03,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8474 to 8387. [2018-10-27 03:32:03,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8387 states. [2018-10-27 03:32:03,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8387 states to 8387 states and 12569 transitions. [2018-10-27 03:32:03,279 INFO L78 Accepts]: Start accepts. Automaton has 8387 states and 12569 transitions. Word has length 134 [2018-10-27 03:32:03,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:32:03,279 INFO L481 AbstractCegarLoop]: Abstraction has 8387 states and 12569 transitions. [2018-10-27 03:32:03,280 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 03:32:03,280 INFO L276 IsEmpty]: Start isEmpty. Operand 8387 states and 12569 transitions. [2018-10-27 03:32:03,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2018-10-27 03:32:03,285 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:32:03,285 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-10-27 03:32:03,286 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:32:03,286 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:32:03,286 INFO L82 PathProgramCache]: Analyzing trace with hash 1511832028, now seen corresponding path program 1 times [2018-10-27 03:32:03,286 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:32:03,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:32:03,287 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:32:03,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:32:03,288 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:32:03,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:32:03,540 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 95 proven. 5 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-10-27 03:32:03,541 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 03:32:03,541 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 03:32:03,542 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 209 with the following transitions: [2018-10-27 03:32:03,544 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1042], [1044], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [1224], [1228], [1232], [1236], [1239], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-27 03:32:03,613 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 03:32:03,613 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 03:32:05,105 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 03:32:26,692 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 03:32:26,694 INFO L272 AbstractInterpreter]: Visited 87 different actions 573 times. Merged at 5 different actions 30 times. Widened at 1 different actions 2 times. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-10-27 03:32:26,711 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:32:26,711 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 03:32:30,738 INFO L227 lantSequenceWeakener]: Weakened 15 states. On average, predicates are now at 77.78% of their original sizes. [2018-10-27 03:32:30,739 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 03:33:57,237 INFO L415 sIntCurrentIteration]: We unified 207 AI predicates to 207 [2018-10-27 03:33:57,237 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 03:33:57,238 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 03:33:57,239 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [6] total 26 [2018-10-27 03:33:57,239 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:33:57,240 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-10-27 03:33:57,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-10-27 03:33:57,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2018-10-27 03:33:57,241 INFO L87 Difference]: Start difference. First operand 8387 states and 12569 transitions. Second operand 22 states. Received shutdown request... [2018-10-27 03:35:03,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-27 03:35:03,779 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 03:35:03,784 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 03:35:03,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:35:03 BoogieIcfgContainer [2018-10-27 03:35:03,784 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 03:35:03,785 INFO L168 Benchmark]: Toolchain (without parser) took 242842.77 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -602.7 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-10-27 03:35:03,787 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 03:35:03,788 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1668.43 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. [2018-10-27 03:35:03,789 INFO L168 Benchmark]: Boogie Procedure Inliner took 457.16 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 757.1 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -915.5 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. [2018-10-27 03:35:03,790 INFO L168 Benchmark]: Boogie Preprocessor took 277.03 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: 28.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB. [2018-10-27 03:35:03,791 INFO L168 Benchmark]: RCFGBuilder took 11977.14 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 1.7 GB in the end (delta: 468.4 MB). Peak memory consumption was 468.4 MB. Max. memory is 7.1 GB. [2018-10-27 03:35:03,792 INFO L168 Benchmark]: TraceAbstraction took 228454.74 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 2.0 GB in the end (delta: -321.4 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-10-27 03:35:03,800 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 1668.43 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 457.16 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 757.1 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -915.5 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 277.03 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: 28.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11977.14 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 1.7 GB in the end (delta: 468.4 MB). Peak memory consumption was 468.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 228454.74 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 2.0 GB in the end (delta: -321.4 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 149]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 149). Cancelled while BasicCegarLoop was constructing difference of abstraction (8387states) and FLOYD_HOARE automaton (currently 16 states, 22 states before enhancement),while ReachableStatesComputation was computing reachable states (170 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 228.3s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 112.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 674 SDtfs, 6248 SDslu, 791 SDs, 0 SdLazy, 9197 SolverSat, 3107 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 54.7s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 242 GetRequests, 131 SyntacticMatches, 66 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 843 ImplicationChecksByTransitivity, 90.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8387occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 23.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9945596432552954 AbsIntWeakeningRatio, 0.13043478260869565 AbsIntAvgWeakeningVarsNumRemoved, 602.56038647343 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 3 MinimizatonAttempts, 140 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 529 NumberOfCodeBlocks, 529 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 525 ConstructedInterpolants, 0 QuantifiedInterpolants, 271687 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 258/263 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown