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/Problem18_label24_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 03:42:48,021 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 03:42:48,024 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 03:42:48,039 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 03:42:48,039 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 03:42:48,041 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 03:42:48,044 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 03:42:48,048 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 03:42:48,051 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 03:42:48,057 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 03:42:48,058 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 03:42:48,058 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 03:42:48,059 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 03:42:48,064 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 03:42:48,068 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 03:42:48,069 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 03:42:48,070 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 03:42:48,072 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 03:42:48,074 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 03:42:48,080 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 03:42:48,081 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 03:42:48,082 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 03:42:48,085 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-27 03:42:48,093 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 03:42:48,093 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 03:42:48,096 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 03:42:48,098 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 03:42:48,098 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 03:42:48,127 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 03:42:48,128 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 03:42:48,129 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 03:42:48,129 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 03:42:48,129 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 03:42:48,130 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 03:42:48,130 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 03:42:48,130 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 03:42:48,130 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 03:42:48,130 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 03:42:48,133 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 03:42:48,134 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 03:42:48,135 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 03:42:48,135 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 03:42:48,135 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 03:42:48,135 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 03:42:48,135 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 03:42:48,135 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 03:42:48,136 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 03:42:48,137 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 03:42:48,137 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 03:42:48,137 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 03:42:48,137 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 03:42:48,138 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 03:42:48,138 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 03:42:48,138 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 03:42:48,138 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 03:42:48,139 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 03:42:48,139 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 03:42:48,139 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 03:42:48,139 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 03:42:48,139 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 03:42:48,140 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 03:42:48,140 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 03:42:48,212 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 03:42:48,229 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 03:42:48,235 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 03:42:48,237 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 03:42:48,237 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 03:42:48,238 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label24_true-unreach-call.c [2018-10-27 03:42:48,304 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/6ed1391b4/ee57e1f5da514123a38ae1047570cf07/FLAGc35aa58f3 [2018-10-27 03:42:49,083 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 03:42:49,084 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label24_true-unreach-call.c [2018-10-27 03:42:49,114 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/6ed1391b4/ee57e1f5da514123a38ae1047570cf07/FLAGc35aa58f3 [2018-10-27 03:42:49,137 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/6ed1391b4/ee57e1f5da514123a38ae1047570cf07 [2018-10-27 03:42:49,151 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 03:42:49,153 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 03:42:49,154 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 03:42:49,155 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 03:42:49,159 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 03:42:49,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:42:49" (1/1) ... [2018-10-27 03:42:49,164 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6895558e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:42:49, skipping insertion in model container [2018-10-27 03:42:49,164 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:42:49" (1/1) ... [2018-10-27 03:42:49,176 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 03:42:49,330 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 03:42:50,525 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 03:42:50,530 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 03:42:51,014 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 03:42:51,045 INFO L193 MainTranslator]: Completed translation [2018-10-27 03:42:51,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:42:51 WrapperNode [2018-10-27 03:42:51,046 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 03:42:51,047 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 03:42:51,047 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 03:42:51,047 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 03:42:51,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:42:51" (1/1) ... [2018-10-27 03:42:51,125 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:42:51" (1/1) ... [2018-10-27 03:42:51,522 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 03:42:51,523 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 03:42:51,523 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 03:42:51,523 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 03:42:51,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:42:51" (1/1) ... [2018-10-27 03:42:51,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:42:51" (1/1) ... [2018-10-27 03:42:51,560 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:42:51" (1/1) ... [2018-10-27 03:42:51,560 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:42:51" (1/1) ... [2018-10-27 03:42:51,656 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:42:51" (1/1) ... [2018-10-27 03:42:51,711 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:42:51" (1/1) ... [2018-10-27 03:42:51,736 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:42:51" (1/1) ... [2018-10-27 03:42:51,772 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 03:42:51,772 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 03:42:51,773 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 03:42:51,773 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 03:42:51,774 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:42:51" (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 03:42:51,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 03:42:51,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 03:42:51,857 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-27 03:42:51,858 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-27 03:42:51,859 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 03:42:51,859 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 03:42:51,859 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 03:42:51,860 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 03:42:51,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 03:42:51,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 03:42:51,860 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 03:42:51,860 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 03:43:00,953 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 03:43:00,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:43:00 BoogieIcfgContainer [2018-10-27 03:43:00,955 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 03:43:00,956 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 03:43:00,956 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 03:43:00,959 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 03:43:00,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:42:49" (1/3) ... [2018-10-27 03:43:00,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2331b472 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:43:00, skipping insertion in model container [2018-10-27 03:43:00,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:42:51" (2/3) ... [2018-10-27 03:43:00,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2331b472 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:43:00, skipping insertion in model container [2018-10-27 03:43:00,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:43:00" (3/3) ... [2018-10-27 03:43:00,964 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label24_true-unreach-call.c [2018-10-27 03:43:00,974 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 03:43:00,983 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 03:43:01,002 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 03:43:01,048 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 03:43:01,049 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 03:43:01,049 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 03:43:01,049 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 03:43:01,049 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 03:43:01,049 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 03:43:01,049 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 03:43:01,050 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 03:43:01,089 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-10-27 03:43:01,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-10-27 03:43:01,100 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:43:01,101 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] [2018-10-27 03:43:01,103 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:43:01,111 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:43:01,112 INFO L82 PathProgramCache]: Analyzing trace with hash -926912268, now seen corresponding path program 1 times [2018-10-27 03:43:01,115 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:43:01,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:43:01,168 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:43:01,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:43:01,168 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:43:01,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:43:01,637 WARN L179 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 03:43:01,755 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 03:43:01,757 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:43:01,758 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 03:43:01,758 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:43:01,765 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 03:43:01,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 03:43:01,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 03:43:01,785 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 3 states. [2018-10-27 03:43:08,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:43:08,438 INFO L93 Difference]: Finished difference Result 2251 states and 4322 transitions. [2018-10-27 03:43:08,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 03:43:08,439 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2018-10-27 03:43:08,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:43:08,476 INFO L225 Difference]: With dead ends: 2251 [2018-10-27 03:43:08,477 INFO L226 Difference]: Without dead ends: 1474 [2018-10-27 03:43:08,487 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 03:43:08,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2018-10-27 03:43:08,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1474. [2018-10-27 03:43:08,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-10-27 03:43:08,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2800 transitions. [2018-10-27 03:43:08,643 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2800 transitions. Word has length 58 [2018-10-27 03:43:08,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:43:08,644 INFO L481 AbstractCegarLoop]: Abstraction has 1474 states and 2800 transitions. [2018-10-27 03:43:08,644 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 03:43:08,645 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2800 transitions. [2018-10-27 03:43:08,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-10-27 03:43:08,652 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:43:08,653 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, 1, 1, 1, 1, 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 03:43:08,653 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:43:08,653 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:43:08,654 INFO L82 PathProgramCache]: Analyzing trace with hash 1481566434, now seen corresponding path program 1 times [2018-10-27 03:43:08,654 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:43:08,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:43:08,655 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:43:08,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:43:08,655 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:43:08,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:43:08,913 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:43:08,913 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:43:08,914 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 03:43:08,914 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:43:08,916 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 03:43:08,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 03:43:08,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 03:43:08,917 INFO L87 Difference]: Start difference. First operand 1474 states and 2800 transitions. Second operand 5 states. [2018-10-27 03:43:16,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:43:16,781 INFO L93 Difference]: Finished difference Result 4419 states and 8483 transitions. [2018-10-27 03:43:16,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 03:43:16,788 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 128 [2018-10-27 03:43:16,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:43:16,809 INFO L225 Difference]: With dead ends: 4419 [2018-10-27 03:43:16,809 INFO L226 Difference]: Without dead ends: 2951 [2018-10-27 03:43:16,815 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-27 03:43:16,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2018-10-27 03:43:16,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 2925. [2018-10-27 03:43:16,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2925 states. [2018-10-27 03:43:16,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 5205 transitions. [2018-10-27 03:43:16,911 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 5205 transitions. Word has length 128 [2018-10-27 03:43:16,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:43:16,912 INFO L481 AbstractCegarLoop]: Abstraction has 2925 states and 5205 transitions. [2018-10-27 03:43:16,912 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 03:43:16,912 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 5205 transitions. [2018-10-27 03:43:16,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-10-27 03:43:16,920 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:43:16,920 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, 1, 1, 1, 1, 1, 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 03:43:16,921 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:43:16,921 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:43:16,921 INFO L82 PathProgramCache]: Analyzing trace with hash -74605249, now seen corresponding path program 1 times [2018-10-27 03:43:16,922 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:43:16,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:43:16,923 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:43:16,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:43:16,923 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:43:16,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:43:17,120 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:43:17,121 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:43:17,121 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 03:43:17,121 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:43:17,122 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 03:43:17,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 03:43:17,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 03:43:17,123 INFO L87 Difference]: Start difference. First operand 2925 states and 5205 transitions. Second operand 5 states. [2018-10-27 03:43:22,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:43:22,833 INFO L93 Difference]: Finished difference Result 7345 states and 13001 transitions. [2018-10-27 03:43:22,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 03:43:22,838 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 129 [2018-10-27 03:43:22,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:43:22,872 INFO L225 Difference]: With dead ends: 7345 [2018-10-27 03:43:22,872 INFO L226 Difference]: Without dead ends: 4426 [2018-10-27 03:43:22,882 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 [2018-10-27 03:43:22,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4426 states. [2018-10-27 03:43:23,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4426 to 4391. [2018-10-27 03:43:23,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4391 states. [2018-10-27 03:43:23,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4391 states to 4391 states and 6473 transitions. [2018-10-27 03:43:23,019 INFO L78 Accepts]: Start accepts. Automaton has 4391 states and 6473 transitions. Word has length 129 [2018-10-27 03:43:23,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:43:23,021 INFO L481 AbstractCegarLoop]: Abstraction has 4391 states and 6473 transitions. [2018-10-27 03:43:23,021 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 03:43:23,021 INFO L276 IsEmpty]: Start isEmpty. Operand 4391 states and 6473 transitions. [2018-10-27 03:43:23,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-10-27 03:43:23,024 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:43:23,025 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, 1, 1, 1, 1, 1, 1, 1, 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 03:43:23,025 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:43:23,025 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:43:23,025 INFO L82 PathProgramCache]: Analyzing trace with hash 780877979, now seen corresponding path program 1 times [2018-10-27 03:43:23,025 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:43:23,027 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:43:23,027 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:43:23,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:43:23,028 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:43:23,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:43:23,200 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:43:23,201 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:43:23,201 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 03:43:23,201 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:43:23,202 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 03:43:23,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 03:43:23,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 03:43:23,202 INFO L87 Difference]: Start difference. First operand 4391 states and 6473 transitions. Second operand 5 states. [2018-10-27 03:43:33,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:43:33,987 INFO L93 Difference]: Finished difference Result 14819 states and 21982 transitions. [2018-10-27 03:43:33,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-27 03:43:33,990 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 131 [2018-10-27 03:43:33,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:43:34,039 INFO L225 Difference]: With dead ends: 14819 [2018-10-27 03:43:34,039 INFO L226 Difference]: Without dead ends: 10434 [2018-10-27 03:43:34,063 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-27 03:43:34,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10434 states. [2018-10-27 03:43:34,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10434 to 10284. [2018-10-27 03:43:34,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10284 states. [2018-10-27 03:43:34,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10284 states to 10284 states and 13624 transitions. [2018-10-27 03:43:34,334 INFO L78 Accepts]: Start accepts. Automaton has 10284 states and 13624 transitions. Word has length 131 [2018-10-27 03:43:34,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:43:34,335 INFO L481 AbstractCegarLoop]: Abstraction has 10284 states and 13624 transitions. [2018-10-27 03:43:34,335 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 03:43:34,335 INFO L276 IsEmpty]: Start isEmpty. Operand 10284 states and 13624 transitions. [2018-10-27 03:43:34,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2018-10-27 03:43:34,342 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:43:34,343 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, 3, 3, 3, 3, 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] [2018-10-27 03:43:34,343 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:43:34,343 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:43:34,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1819923301, now seen corresponding path program 1 times [2018-10-27 03:43:34,344 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:43:34,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:43:34,345 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:43:34,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:43:34,345 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:43:34,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:43:34,575 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-10-27 03:43:34,575 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:43:34,575 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 03:43:34,575 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:43:34,576 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 03:43:34,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 03:43:34,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 03:43:34,577 INFO L87 Difference]: Start difference. First operand 10284 states and 13624 transitions. Second operand 4 states. [2018-10-27 03:43:43,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:43:43,009 INFO L93 Difference]: Finished difference Result 37629 states and 51788 transitions. [2018-10-27 03:43:43,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 03:43:43,015 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 235 [2018-10-27 03:43:43,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:43:43,137 INFO L225 Difference]: With dead ends: 37629 [2018-10-27 03:43:43,137 INFO L226 Difference]: Without dead ends: 27351 [2018-10-27 03:43:43,198 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 03:43:43,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27351 states. [2018-10-27 03:43:43,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27351 to 27340. [2018-10-27 03:43:43,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27340 states. [2018-10-27 03:43:43,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27340 states to 27340 states and 35081 transitions. [2018-10-27 03:43:43,818 INFO L78 Accepts]: Start accepts. Automaton has 27340 states and 35081 transitions. Word has length 235 [2018-10-27 03:43:43,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:43:43,818 INFO L481 AbstractCegarLoop]: Abstraction has 27340 states and 35081 transitions. [2018-10-27 03:43:43,818 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 03:43:43,819 INFO L276 IsEmpty]: Start isEmpty. Operand 27340 states and 35081 transitions. [2018-10-27 03:43:43,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2018-10-27 03:43:43,854 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:43:43,855 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-27 03:43:43,855 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:43:43,856 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:43:43,856 INFO L82 PathProgramCache]: Analyzing trace with hash 247952755, now seen corresponding path program 1 times [2018-10-27 03:43:43,856 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:43:43,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:43:43,857 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:43:43,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:43:43,858 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:43:43,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:43:45,048 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 339 proven. 183 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-27 03:43:45,048 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 03:43:45,048 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 03:43:45,049 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 450 with the following transitions: [2018-10-27 03:43:45,052 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1903], [1911], [1919], [1927], [1935], [1943], [1951], [1959], [1967], [1975], [1983], [1987], [1989], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2328], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2356], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2388], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-10-27 03:43:45,127 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 03:43:45,128 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 03:43:48,333 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 03:43:48,616 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 03:43:48,617 INFO L272 AbstractInterpreter]: Visited 144 different actions 144 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-27 03:43:48,628 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:43:48,628 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 03:43:52,138 INFO L227 lantSequenceWeakener]: Weakened 438 states. On average, predicates are now at 77.75% of their original sizes. [2018-10-27 03:43:52,139 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 03:43:52,664 INFO L415 sIntCurrentIteration]: We unified 448 AI predicates to 448 [2018-10-27 03:43:52,665 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 03:43:52,666 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 03:43:52,666 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2018-10-27 03:43:52,666 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:43:52,667 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-27 03:43:52,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-27 03:43:52,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-27 03:43:52,668 INFO L87 Difference]: Start difference. First operand 27340 states and 35081 transitions. Second operand 7 states. [2018-10-27 03:45:39,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:45:39,628 INFO L93 Difference]: Finished difference Result 55379 states and 70894 transitions. [2018-10-27 03:45:39,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 03:45:39,628 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 449 [2018-10-27 03:45:39,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:45:39,747 INFO L225 Difference]: With dead ends: 55379 [2018-10-27 03:45:39,747 INFO L226 Difference]: Without dead ends: 28045 [2018-10-27 03:45:39,811 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 449 GetRequests, 443 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-27 03:45:39,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28045 states. [2018-10-27 03:45:40,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28045 to 28043. [2018-10-27 03:45:40,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28043 states. [2018-10-27 03:45:40,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28043 states to 28043 states and 35796 transitions. [2018-10-27 03:45:40,436 INFO L78 Accepts]: Start accepts. Automaton has 28043 states and 35796 transitions. Word has length 449 [2018-10-27 03:45:40,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:45:40,437 INFO L481 AbstractCegarLoop]: Abstraction has 28043 states and 35796 transitions. [2018-10-27 03:45:40,437 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-27 03:45:40,437 INFO L276 IsEmpty]: Start isEmpty. Operand 28043 states and 35796 transitions. [2018-10-27 03:45:40,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 600 [2018-10-27 03:45:40,480 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:45:40,481 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:45:40,481 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:45:40,481 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:45:40,482 INFO L82 PathProgramCache]: Analyzing trace with hash 2034321767, now seen corresponding path program 1 times [2018-10-27 03:45:40,482 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:45:40,483 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:45:40,483 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:45:40,483 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:45:40,483 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:45:40,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:45:41,135 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-27 03:45:41,346 WARN L179 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-27 03:45:41,562 WARN L179 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-27 03:45:42,022 WARN L179 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-10-27 03:45:42,831 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 212 proven. 383 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-27 03:45:42,831 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 03:45:42,831 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 03:45:42,832 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 600 with the following transitions: [2018-10-27 03:45:42,832 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1903], [1911], [1919], [1927], [1935], [1943], [1951], [1959], [1967], [1975], [1983], [1987], [1989], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2356], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2584], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2681], [2685], [2689], [2693], [2697], [2701], [2705], [2709], [2713], [2717], [2721], [2725], [2729], [2732], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-10-27 03:45:42,841 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 03:45:42,841 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 03:45:45,081 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 03:45:57,535 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 03:45:57,535 INFO L272 AbstractInterpreter]: Visited 233 different actions 459 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-27 03:45:57,545 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:45:57,545 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 03:46:06,343 INFO L227 lantSequenceWeakener]: Weakened 160 states. On average, predicates are now at 78.32% of their original sizes. [2018-10-27 03:46:06,343 INFO L413 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-10-27 03:46:20,427 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 03:46:20,432 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 03:46:20,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:46:20 BoogieIcfgContainer [2018-10-27 03:46:20,433 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 03:46:20,434 INFO L168 Benchmark]: Toolchain (without parser) took 211281.88 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -701.8 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-10-27 03:46:20,436 INFO L168 Benchmark]: CDTParser took 0.20 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 03:46:20,437 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1892.09 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 03:46:20,438 INFO L168 Benchmark]: Boogie Procedure Inliner took 475.37 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 768.6 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -941.4 MB). Peak memory consumption was 45.0 MB. Max. memory is 7.1 GB. [2018-10-27 03:46:20,439 INFO L168 Benchmark]: Boogie Preprocessor took 249.25 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. [2018-10-27 03:46:20,439 INFO L168 Benchmark]: RCFGBuilder took 9182.41 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 504.0 MB). Peak memory consumption was 504.0 MB. Max. memory is 7.1 GB. [2018-10-27 03:46:20,440 INFO L168 Benchmark]: TraceAbstraction took 199477.01 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 2.1 GB in the end (delta: -416.1 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-10-27 03:46:20,446 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1892.09 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 475.37 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 768.6 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -941.4 MB). Peak memory consumption was 45.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 249.25 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9182.41 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 504.0 MB). Peak memory consumption was 504.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 199477.01 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 2.1 GB in the end (delta: -416.1 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 162]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 162). Cancelled while BasicCegarLoop was analyzing trace of length 600 with TraceHistMax 4,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 9 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 199.3s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 147.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1686 SDtfs, 12355 SDslu, 869 SDs, 0 SdLazy, 22140 SolverSat, 5750 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 95.9s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 486 GetRequests, 455 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28043occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 18.2s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9975008313242992 AbsIntWeakeningRatio, 0.06118546845124283 AbsIntAvgWeakeningVarsNumRemoved, 398.39483747609944 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.8s AutomataMinimizationTime, 6 MinimizatonAttempts, 224 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 1130 NumberOfCodeBlocks, 1130 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1124 ConstructedInterpolants, 0 QuantifiedInterpolants, 974855 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 671/854 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown