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/Problem16_label45_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 22:01:24,099 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 22:01:24,101 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 22:01:24,113 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 22:01:24,114 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 22:01:24,115 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 22:01:24,116 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 22:01:24,118 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 22:01:24,119 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 22:01:24,120 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 22:01:24,121 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 22:01:24,121 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 22:01:24,122 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 22:01:24,123 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 22:01:24,124 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 22:01:24,125 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 22:01:24,126 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 22:01:24,128 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 22:01:24,130 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 22:01:24,131 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 22:01:24,132 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 22:01:24,133 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 22:01:24,136 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 22:01:24,142 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 22:01:24,142 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 22:01:24,143 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 22:01:24,144 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 22:01:24,144 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 22:01:24,159 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 22:01:24,160 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 22:01:24,160 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 22:01:24,161 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 22:01:24,161 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 22:01:24,161 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 22:01:24,161 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 22:01:24,161 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 22:01:24,162 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 22:01:24,162 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 22:01:24,162 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 22:01:24,162 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 22:01:24,163 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 22:01:24,163 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 22:01:24,163 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 22:01:24,164 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 22:01:24,164 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 22:01:24,164 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 22:01:24,164 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 22:01:24,164 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 22:01:24,165 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 22:01:24,165 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 22:01:24,165 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 22:01:24,165 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 22:01:24,165 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 22:01:24,166 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 22:01:24,166 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 22:01:24,166 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 22:01:24,166 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 22:01:24,166 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 22:01:24,167 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 22:01:24,167 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 22:01:24,167 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 22:01:24,167 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 22:01:24,225 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 22:01:24,242 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 22:01:24,246 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 22:01:24,247 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 22:01:24,248 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 22:01:24,249 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label45_true-unreach-call.c [2018-10-24 22:01:24,312 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f4bc6f7f6/9730d119c9ed4f3491c4dcdf6ed6ead3/FLAG61e91550a [2018-10-24 22:01:24,960 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 22:01:24,961 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label45_true-unreach-call.c [2018-10-24 22:01:24,977 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f4bc6f7f6/9730d119c9ed4f3491c4dcdf6ed6ead3/FLAG61e91550a [2018-10-24 22:01:24,992 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f4bc6f7f6/9730d119c9ed4f3491c4dcdf6ed6ead3 [2018-10-24 22:01:25,004 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 22:01:25,006 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 22:01:25,007 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 22:01:25,007 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 22:01:25,011 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 22:01:25,012 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:01:24" (1/1) ... [2018-10-24 22:01:25,015 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f32220e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:01:25, skipping insertion in model container [2018-10-24 22:01:25,016 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:01:24" (1/1) ... [2018-10-24 22:01:25,027 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 22:01:25,108 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 22:01:25,954 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 22:01:25,964 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 22:01:26,268 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 22:01:26,291 INFO L193 MainTranslator]: Completed translation [2018-10-24 22:01:26,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:01:26 WrapperNode [2018-10-24 22:01:26,292 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 22:01:26,293 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 22:01:26,293 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 22:01:26,293 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 22:01:26,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:01:26" (1/1) ... [2018-10-24 22:01:26,354 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:01:26" (1/1) ... [2018-10-24 22:01:26,624 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 22:01:26,625 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 22:01:26,625 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 22:01:26,625 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 22:01:26,637 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:01:26" (1/1) ... [2018-10-24 22:01:26,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:01:26" (1/1) ... [2018-10-24 22:01:26,653 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:01:26" (1/1) ... [2018-10-24 22:01:26,654 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:01:26" (1/1) ... [2018-10-24 22:01:26,732 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:01:26" (1/1) ... [2018-10-24 22:01:26,765 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:01:26" (1/1) ... [2018-10-24 22:01:26,788 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:01:26" (1/1) ... [2018-10-24 22:01:26,805 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 22:01:26,805 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 22:01:26,806 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 22:01:26,806 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 22:01:26,808 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:01:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 22:01:26,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 22:01:26,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 22:01:26,879 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 22:01:26,879 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 22:01:26,879 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 22:01:26,879 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 22:01:26,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 22:01:26,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 22:01:26,880 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 22:01:26,880 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 22:01:33,196 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 22:01:33,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:01:33 BoogieIcfgContainer [2018-10-24 22:01:33,198 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 22:01:33,199 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 22:01:33,199 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 22:01:33,204 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 22:01:33,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:01:24" (1/3) ... [2018-10-24 22:01:33,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8a3e47b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:01:33, skipping insertion in model container [2018-10-24 22:01:33,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:01:26" (2/3) ... [2018-10-24 22:01:33,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8a3e47b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:01:33, skipping insertion in model container [2018-10-24 22:01:33,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:01:33" (3/3) ... [2018-10-24 22:01:33,208 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label45_true-unreach-call.c [2018-10-24 22:01:33,219 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 22:01:33,234 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 22:01:33,252 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 22:01:33,298 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 22:01:33,299 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 22:01:33,299 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 22:01:33,299 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 22:01:33,299 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 22:01:33,299 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 22:01:33,300 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 22:01:33,300 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 22:01:33,338 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-10-24 22:01:33,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-10-24 22:01:33,353 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:01:33,354 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] [2018-10-24 22:01:33,356 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:01:33,362 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:01:33,362 INFO L82 PathProgramCache]: Analyzing trace with hash -1570242596, now seen corresponding path program 1 times [2018-10-24 22:01:33,365 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:01:33,422 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:01:33,422 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:01:33,422 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:01:33,422 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:01:33,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:01:33,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 22:01:33,914 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:01:33,915 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 22:01:33,915 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:01:33,921 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 22:01:33,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 22:01:33,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 22:01:33,944 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 4 states. [2018-10-24 22:01:40,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:01:40,958 INFO L93 Difference]: Finished difference Result 1513 states and 2838 transitions. [2018-10-24 22:01:40,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 22:01:40,962 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 60 [2018-10-24 22:01:40,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:01:40,994 INFO L225 Difference]: With dead ends: 1513 [2018-10-24 22:01:40,995 INFO L226 Difference]: Without dead ends: 1097 [2018-10-24 22:01:41,004 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 22:01:41,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2018-10-24 22:01:41,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 744. [2018-10-24 22:01:41,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-10-24 22:01:41,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1301 transitions. [2018-10-24 22:01:41,129 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1301 transitions. Word has length 60 [2018-10-24 22:01:41,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:01:41,130 INFO L481 AbstractCegarLoop]: Abstraction has 744 states and 1301 transitions. [2018-10-24 22:01:41,130 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 22:01:41,131 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1301 transitions. [2018-10-24 22:01:41,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-10-24 22:01:41,138 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:01:41,139 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, 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] [2018-10-24 22:01:41,139 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:01:41,139 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:01:41,139 INFO L82 PathProgramCache]: Analyzing trace with hash -1372196061, now seen corresponding path program 1 times [2018-10-24 22:01:41,140 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:01:41,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:01:41,141 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:01:41,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:01:41,141 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:01:41,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:01:41,619 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 22:01:41,619 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:01:41,619 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 22:01:41,620 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:01:41,622 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 22:01:41,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 22:01:41,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 22:01:41,623 INFO L87 Difference]: Start difference. First operand 744 states and 1301 transitions. Second operand 6 states. [2018-10-24 22:01:46,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:01:46,530 INFO L93 Difference]: Finished difference Result 2196 states and 3924 transitions. [2018-10-24 22:01:46,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 22:01:46,531 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 131 [2018-10-24 22:01:46,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:01:46,545 INFO L225 Difference]: With dead ends: 2196 [2018-10-24 22:01:46,545 INFO L226 Difference]: Without dead ends: 1458 [2018-10-24 22:01:46,549 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 22:01:46,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1458 states. [2018-10-24 22:01:46,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1458 to 1438. [2018-10-24 22:01:46,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1438 states. [2018-10-24 22:01:46,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1438 states to 1438 states and 2463 transitions. [2018-10-24 22:01:46,611 INFO L78 Accepts]: Start accepts. Automaton has 1438 states and 2463 transitions. Word has length 131 [2018-10-24 22:01:46,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:01:46,611 INFO L481 AbstractCegarLoop]: Abstraction has 1438 states and 2463 transitions. [2018-10-24 22:01:46,612 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 22:01:46,612 INFO L276 IsEmpty]: Start isEmpty. Operand 1438 states and 2463 transitions. [2018-10-24 22:01:46,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-10-24 22:01:46,617 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:01:46,617 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, 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] [2018-10-24 22:01:46,617 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:01:46,618 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:01:46,618 INFO L82 PathProgramCache]: Analyzing trace with hash 822565126, now seen corresponding path program 1 times [2018-10-24 22:01:46,618 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:01:46,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:01:46,619 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:01:46,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:01:46,620 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:01:46,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:01:46,808 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 22:01:46,808 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:01:46,808 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 22:01:46,809 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:01:46,809 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 22:01:46,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 22:01:46,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 22:01:46,810 INFO L87 Difference]: Start difference. First operand 1438 states and 2463 transitions. Second operand 5 states. [2018-10-24 22:01:51,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:01:51,364 INFO L93 Difference]: Finished difference Result 3597 states and 6200 transitions. [2018-10-24 22:01:51,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 22:01:51,364 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 132 [2018-10-24 22:01:51,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:01:51,379 INFO L225 Difference]: With dead ends: 3597 [2018-10-24 22:01:51,379 INFO L226 Difference]: Without dead ends: 2165 [2018-10-24 22:01:51,385 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 22:01:51,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2165 states. [2018-10-24 22:01:51,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2165 to 2145. [2018-10-24 22:01:51,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2145 states. [2018-10-24 22:01:51,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2145 states to 2145 states and 3126 transitions. [2018-10-24 22:01:51,458 INFO L78 Accepts]: Start accepts. Automaton has 2145 states and 3126 transitions. Word has length 132 [2018-10-24 22:01:51,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:01:51,459 INFO L481 AbstractCegarLoop]: Abstraction has 2145 states and 3126 transitions. [2018-10-24 22:01:51,459 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 22:01:51,459 INFO L276 IsEmpty]: Start isEmpty. Operand 2145 states and 3126 transitions. [2018-10-24 22:01:51,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2018-10-24 22:01:51,464 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:01:51,464 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 22:01:51,464 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:01:51,465 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:01:51,465 INFO L82 PathProgramCache]: Analyzing trace with hash 9848590, now seen corresponding path program 1 times [2018-10-24 22:01:51,465 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:01:51,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:01:51,466 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:01:51,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:01:51,466 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:01:51,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:01:51,762 WARN L179 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 22:01:51,873 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 22:01:51,874 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:01:51,874 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 22:01:51,874 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:01:51,875 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 22:01:51,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 22:01:51,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 22:01:51,876 INFO L87 Difference]: Start difference. First operand 2145 states and 3126 transitions. Second operand 6 states. [2018-10-24 22:01:56,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:01:56,034 INFO L93 Difference]: Finished difference Result 7058 states and 10436 transitions. [2018-10-24 22:01:56,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 22:01:56,038 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 224 [2018-10-24 22:01:56,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:01:56,069 INFO L225 Difference]: With dead ends: 7058 [2018-10-24 22:01:56,069 INFO L226 Difference]: Without dead ends: 4919 [2018-10-24 22:01:56,088 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 [2018-10-24 22:01:56,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4919 states. [2018-10-24 22:01:56,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4919 to 4879. [2018-10-24 22:01:56,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4879 states. [2018-10-24 22:01:56,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4879 states to 4879 states and 6857 transitions. [2018-10-24 22:01:56,238 INFO L78 Accepts]: Start accepts. Automaton has 4879 states and 6857 transitions. Word has length 224 [2018-10-24 22:01:56,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:01:56,238 INFO L481 AbstractCegarLoop]: Abstraction has 4879 states and 6857 transitions. [2018-10-24 22:01:56,239 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 22:01:56,239 INFO L276 IsEmpty]: Start isEmpty. Operand 4879 states and 6857 transitions. [2018-10-24 22:01:56,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2018-10-24 22:01:56,245 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:01:56,246 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 22:01:56,246 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:01:56,246 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:01:56,246 INFO L82 PathProgramCache]: Analyzing trace with hash 433783590, now seen corresponding path program 1 times [2018-10-24 22:01:56,246 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:01:56,247 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:01:56,248 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:01:56,248 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:01:56,248 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:01:56,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:01:56,612 WARN L179 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 22:01:56,901 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 22:01:56,901 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:01:56,902 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 22:01:56,902 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:01:56,902 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 22:01:56,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 22:01:56,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 22:01:56,903 INFO L87 Difference]: Start difference. First operand 4879 states and 6857 transitions. Second operand 6 states. [2018-10-24 22:02:01,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:02:01,380 INFO L93 Difference]: Finished difference Result 12216 states and 17406 transitions. [2018-10-24 22:02:01,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 22:02:01,382 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 244 [2018-10-24 22:02:01,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:02:01,421 INFO L225 Difference]: With dead ends: 12216 [2018-10-24 22:02:01,421 INFO L226 Difference]: Without dead ends: 7343 [2018-10-24 22:02:01,453 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 22:02:01,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7343 states. [2018-10-24 22:02:01,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7343 to 7306. [2018-10-24 22:02:01,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7306 states. [2018-10-24 22:02:01,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7306 states to 7306 states and 9825 transitions. [2018-10-24 22:02:01,638 INFO L78 Accepts]: Start accepts. Automaton has 7306 states and 9825 transitions. Word has length 244 [2018-10-24 22:02:01,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:02:01,638 INFO L481 AbstractCegarLoop]: Abstraction has 7306 states and 9825 transitions. [2018-10-24 22:02:01,639 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 22:02:01,639 INFO L276 IsEmpty]: Start isEmpty. Operand 7306 states and 9825 transitions. [2018-10-24 22:02:01,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2018-10-24 22:02:01,654 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:02:01,655 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 22:02:01,655 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:02:01,656 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:02:01,656 INFO L82 PathProgramCache]: Analyzing trace with hash -860566542, now seen corresponding path program 1 times [2018-10-24 22:02:01,656 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:02:01,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:02:01,657 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:02:01,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:02:01,657 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:02:01,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:02:02,473 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 184 proven. 37 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2018-10-24 22:02:02,473 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 22:02:02,473 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 22:02:02,475 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 425 with the following transitions: [2018-10-24 22:02:02,477 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [559], [561], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [672], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1048], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-10-24 22:02:02,552 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 22:02:02,552 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 22:02:06,731 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 22:02:06,734 INFO L272 AbstractInterpreter]: Visited 170 different actions 170 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-24 22:02:06,752 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:02:06,752 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 22:02:09,981 INFO L232 lantSequenceWeakener]: Weakened 413 states. On average, predicates are now at 77.8% of their original sizes. [2018-10-24 22:02:09,981 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 22:02:10,680 INFO L413 sIntCurrentIteration]: We have 423 unified AI predicates [2018-10-24 22:02:10,681 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 22:02:10,682 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 22:02:10,683 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2018-10-24 22:02:10,683 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:02:10,684 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-24 22:02:10,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-24 22:02:10,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-10-24 22:02:10,684 INFO L87 Difference]: Start difference. First operand 7306 states and 9825 transitions. Second operand 8 states. [2018-10-24 22:02:14,808 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 22:03:08,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:03:08,052 INFO L93 Difference]: Finished difference Result 14946 states and 20038 transitions. [2018-10-24 22:03:08,052 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 22:03:08,052 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 424 [2018-10-24 22:03:08,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:03:08,089 INFO L225 Difference]: With dead ends: 14946 [2018-10-24 22:03:08,089 INFO L226 Difference]: Without dead ends: 7646 [2018-10-24 22:03:08,115 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 425 GetRequests, 417 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-24 22:03:08,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7646 states. [2018-10-24 22:03:08,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7646 to 7644. [2018-10-24 22:03:08,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7644 states. [2018-10-24 22:03:08,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7644 states to 7644 states and 10172 transitions. [2018-10-24 22:03:08,306 INFO L78 Accepts]: Start accepts. Automaton has 7644 states and 10172 transitions. Word has length 424 [2018-10-24 22:03:08,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:03:08,307 INFO L481 AbstractCegarLoop]: Abstraction has 7644 states and 10172 transitions. [2018-10-24 22:03:08,307 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-24 22:03:08,307 INFO L276 IsEmpty]: Start isEmpty. Operand 7644 states and 10172 transitions. [2018-10-24 22:03:08,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 517 [2018-10-24 22:03:08,334 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:03:08,335 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 22:03:08,335 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:03:08,335 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:03:08,336 INFO L82 PathProgramCache]: Analyzing trace with hash -738044364, now seen corresponding path program 1 times [2018-10-24 22:03:08,336 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:03:08,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:03:08,337 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:03:08,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:03:08,337 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:03:08,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:03:08,718 WARN L179 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-10-24 22:03:09,340 INFO L134 CoverageAnalysis]: Checked inductivity of 736 backedges. 289 proven. 265 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2018-10-24 22:03:09,341 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 22:03:09,341 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 22:03:09,341 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 517 with the following transitions: [2018-10-24 22:03:09,342 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [559], [561], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [672], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1048], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-10-24 22:03:09,350 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 22:03:09,350 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 22:03:10,553 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 22:03:25,041 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 22:03:25,041 INFO L272 AbstractInterpreter]: Visited 174 different actions 509 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 22:03:25,048 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:03:25,048 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 22:03:31,409 INFO L232 lantSequenceWeakener]: Weakened 59 states. On average, predicates are now at 77.97% of their original sizes. [2018-10-24 22:03:31,410 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 22:03:52,884 INFO L413 sIntCurrentIteration]: We have 515 unified AI predicates [2018-10-24 22:03:52,884 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 22:03:52,884 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 22:03:52,885 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [25] imperfect sequences [7] total 30 [2018-10-24 22:03:52,885 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:03:52,886 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-10-24 22:03:52,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-10-24 22:03:52,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=501, Unknown=0, NotChecked=0, Total=600 [2018-10-24 22:03:52,887 INFO L87 Difference]: Start difference. First operand 7644 states and 10172 transitions. Second operand 25 states. Received shutdown request... [2018-10-24 22:05:09,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-10-24 22:05:09,082 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 22:05:09,087 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 22:05:09,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:05:09 BoogieIcfgContainer [2018-10-24 22:05:09,088 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 22:05:09,089 INFO L168 Benchmark]: Toolchain (without parser) took 224084.33 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -749.8 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-10-24 22:05:09,091 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 22:05:09,092 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1285.26 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-10-24 22:05:09,093 INFO L168 Benchmark]: Boogie Procedure Inliner took 331.47 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 749.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -859.2 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. [2018-10-24 22:05:09,094 INFO L168 Benchmark]: Boogie Preprocessor took 180.53 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. [2018-10-24 22:05:09,095 INFO L168 Benchmark]: RCFGBuilder took 6392.30 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 244.4 MB). Peak memory consumption was 244.4 MB. Max. memory is 7.1 GB. [2018-10-24 22:05:09,096 INFO L168 Benchmark]: TraceAbstraction took 215888.98 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 2.2 GB in the end (delta: -233.3 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-10-24 22:05:09,103 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1285.26 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 331.47 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 749.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -859.2 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 180.53 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6392.30 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 244.4 MB). Peak memory consumption was 244.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 215888.98 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 2.2 GB in the end (delta: -233.3 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 166]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 166). Cancelled while BasicCegarLoop was constructing difference of abstraction (7644states) and FLOYD_HOARE automaton (currently 19 states, 25 states before enhancement),while ReachableStatesComputation was computing reachable states (175 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 215.8s OverallTime, 7 OverallIterations, 5 TraceHistogramMax, 158.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 963 SDtfs, 9106 SDslu, 777 SDs, 0 SdLazy, 11831 SolverSat, 3744 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 65.6s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 996 GetRequests, 915 SyntacticMatches, 10 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 27.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7644occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 19.9s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9969407620283673 AbsIntWeakeningRatio, 0.07462686567164178 AbsIntAvgWeakeningVarsNumRemoved, 503.3987206823028 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 6 MinimizatonAttempts, 472 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 1731 NumberOfCodeBlocks, 1731 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1724 ConstructedInterpolants, 0 QuantifiedInterpolants, 2556226 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 1075/1377 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown