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/Problem13_label25_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 22:20:48,017 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 22:20:48,020 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 22:20:48,033 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 22:20:48,033 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 22:20:48,034 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 22:20:48,035 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 22:20:48,037 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 22:20:48,039 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 22:20:48,040 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 22:20:48,040 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 22:20:48,041 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 22:20:48,042 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 22:20:48,043 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 22:20:48,044 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 22:20:48,045 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 22:20:48,045 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 22:20:48,047 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 22:20:48,049 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 22:20:48,051 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 22:20:48,052 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 22:20:48,053 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 22:20:48,055 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-23 22:20:48,071 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-23 22:20:48,071 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-23 22:20:48,072 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-23 22:20:48,073 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-23 22:20:48,073 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-23 22:20:48,101 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 22:20:48,102 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 22:20:48,103 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 22:20:48,103 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-23 22:20:48,104 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-23 22:20:48,104 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-23 22:20:48,104 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-23 22:20:48,104 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-23 22:20:48,104 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-23 22:20:48,105 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-23 22:20:48,105 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-23 22:20:48,105 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-23 22:20:48,106 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 22:20:48,106 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 22:20:48,106 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 22:20:48,108 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 22:20:48,108 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 22:20:48,108 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 22:20:48,108 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 22:20:48,108 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 22:20:48,109 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 22:20:48,109 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 22:20:48,109 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 22:20:48,109 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 22:20:48,109 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 22:20:48,110 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 22:20:48,110 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 22:20:48,110 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 22:20:48,110 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-23 22:20:48,111 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 22:20:48,111 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 22:20:48,111 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 22:20:48,111 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 22:20:48,111 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-23 22:20:48,166 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 22:20:48,179 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 22:20:48,183 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 22:20:48,185 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 22:20:48,185 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 22:20:48,186 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label25_false-unreach-call.c [2018-10-23 22:20:48,259 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/242a9b04e/430c8ffb430344f1b498c0c1eab523e0/FLAGb9b9cff31 [2018-10-23 22:20:49,096 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 22:20:49,097 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label25_false-unreach-call.c [2018-10-23 22:20:49,144 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/242a9b04e/430c8ffb430344f1b498c0c1eab523e0/FLAGb9b9cff31 [2018-10-23 22:20:49,168 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/242a9b04e/430c8ffb430344f1b498c0c1eab523e0 [2018-10-23 22:20:49,183 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 22:20:49,185 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 22:20:49,186 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 22:20:49,187 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 22:20:49,193 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 22:20:49,194 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 10:20:49" (1/1) ... [2018-10-23 22:20:49,198 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61cf1b32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:20:49, skipping insertion in model container [2018-10-23 22:20:49,198 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 10:20:49" (1/1) ... [2018-10-23 22:20:49,211 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 22:20:49,414 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 22:20:50,990 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 22:20:50,996 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 22:20:51,790 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 22:20:51,831 INFO L193 MainTranslator]: Completed translation [2018-10-23 22:20:51,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:20:51 WrapperNode [2018-10-23 22:20:51,832 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 22:20:51,832 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 22:20:51,833 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 22:20:51,833 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 22:20:51,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:20:51" (1/1) ... [2018-10-23 22:20:51,956 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:20:51" (1/1) ... [2018-10-23 22:20:52,473 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 22:20:52,474 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 22:20:52,474 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 22:20:52,474 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 22:20:52,486 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:20:51" (1/1) ... [2018-10-23 22:20:52,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:20:51" (1/1) ... [2018-10-23 22:20:52,540 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:20:51" (1/1) ... [2018-10-23 22:20:52,541 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:20:51" (1/1) ... [2018-10-23 22:20:52,708 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:20:51" (1/1) ... [2018-10-23 22:20:52,759 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:20:51" (1/1) ... [2018-10-23 22:20:52,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:20:51" (1/1) ... [2018-10-23 22:20:52,875 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 22:20:52,876 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 22:20:52,876 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 22:20:52,876 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 22:20:52,877 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:20:51" (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 [2018-10-23 22:20:52,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-23 22:20:52,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-23 22:20:52,958 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-23 22:20:52,958 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-23 22:20:52,960 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-23 22:20:52,960 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-23 22:20:52,960 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-23 22:20:52,960 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-23 22:20:52,960 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-23 22:20:52,961 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-23 22:20:52,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 22:20:52,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 22:20:52,961 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-23 22:20:52,966 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-23 22:21:04,893 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 22:21:04,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:21:04 BoogieIcfgContainer [2018-10-23 22:21:04,894 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 22:21:04,895 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 22:21:04,896 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 22:21:04,899 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 22:21:04,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 10:20:49" (1/3) ... [2018-10-23 22:21:04,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6757bcc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 10:21:04, skipping insertion in model container [2018-10-23 22:21:04,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:20:51" (2/3) ... [2018-10-23 22:21:04,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6757bcc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 10:21:04, skipping insertion in model container [2018-10-23 22:21:04,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:21:04" (3/3) ... [2018-10-23 22:21:04,902 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label25_false-unreach-call.c [2018-10-23 22:21:04,913 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 22:21:04,924 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 22:21:04,943 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 22:21:05,003 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 22:21:05,004 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 22:21:05,004 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 22:21:05,004 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 22:21:05,004 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 22:21:05,005 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 22:21:05,005 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 22:21:05,005 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 22:21:05,062 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-10-23 22:21:05,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-10-23 22:21:05,070 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:21:05,071 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] [2018-10-23 22:21:05,074 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:21:05,083 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:21:05,083 INFO L82 PathProgramCache]: Analyzing trace with hash 413005764, now seen corresponding path program 1 times [2018-10-23 22:21:05,086 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:21:05,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:21:05,147 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:21:05,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:21:05,147 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:21:05,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:21:05,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:21:05,560 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:21:05,561 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 22:21:05,561 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:21:05,567 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 22:21:05,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 22:21:05,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 22:21:05,589 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 4 states. [2018-10-23 22:21:19,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:21:19,630 INFO L93 Difference]: Finished difference Result 4063 states and 7611 transitions. [2018-10-23 22:21:19,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 22:21:19,642 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2018-10-23 22:21:19,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:21:19,692 INFO L225 Difference]: With dead ends: 4063 [2018-10-23 22:21:19,692 INFO L226 Difference]: Without dead ends: 2937 [2018-10-23 22:21:19,706 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 22:21:19,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2937 states. [2018-10-23 22:21:19,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2937 to 1982. [2018-10-23 22:21:19,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1982 states. [2018-10-23 22:21:19,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1982 states to 1982 states and 3456 transitions. [2018-10-23 22:21:19,914 INFO L78 Accepts]: Start accepts. Automaton has 1982 states and 3456 transitions. Word has length 30 [2018-10-23 22:21:19,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:21:19,915 INFO L481 AbstractCegarLoop]: Abstraction has 1982 states and 3456 transitions. [2018-10-23 22:21:19,915 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 22:21:19,915 INFO L276 IsEmpty]: Start isEmpty. Operand 1982 states and 3456 transitions. [2018-10-23 22:21:19,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-10-23 22:21:19,923 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:21:19,925 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 22:21:19,925 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:21:19,925 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:21:19,926 INFO L82 PathProgramCache]: Analyzing trace with hash -749391575, now seen corresponding path program 1 times [2018-10-23 22:21:19,926 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:21:19,927 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:21:19,927 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:21:19,927 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:21:19,928 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:21:20,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:21:20,435 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:21:20,436 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:21:20,436 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 22:21:20,436 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:21:20,438 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 22:21:20,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 22:21:20,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-23 22:21:20,439 INFO L87 Difference]: Start difference. First operand 1982 states and 3456 transitions. Second operand 6 states. [2018-10-23 22:21:37,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:21:37,132 INFO L93 Difference]: Finished difference Result 7277 states and 13063 transitions. [2018-10-23 22:21:37,140 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 22:21:37,140 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 101 [2018-10-23 22:21:37,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:21:37,180 INFO L225 Difference]: With dead ends: 7277 [2018-10-23 22:21:37,180 INFO L226 Difference]: Without dead ends: 5301 [2018-10-23 22:21:37,191 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-23 22:21:37,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5301 states. [2018-10-23 22:21:37,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5301 to 5252. [2018-10-23 22:21:37,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5252 states. [2018-10-23 22:21:37,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5252 states to 5252 states and 8253 transitions. [2018-10-23 22:21:37,330 INFO L78 Accepts]: Start accepts. Automaton has 5252 states and 8253 transitions. Word has length 101 [2018-10-23 22:21:37,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:21:37,331 INFO L481 AbstractCegarLoop]: Abstraction has 5252 states and 8253 transitions. [2018-10-23 22:21:37,331 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 22:21:37,331 INFO L276 IsEmpty]: Start isEmpty. Operand 5252 states and 8253 transitions. [2018-10-23 22:21:37,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-10-23 22:21:37,340 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:21:37,340 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 22:21:37,340 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:21:37,341 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:21:37,342 INFO L82 PathProgramCache]: Analyzing trace with hash -1848560104, now seen corresponding path program 1 times [2018-10-23 22:21:37,342 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:21:37,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:21:37,345 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:21:37,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:21:37,345 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:21:37,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:21:37,579 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:21:37,579 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:21:37,579 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 22:21:37,580 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:21:37,580 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 22:21:37,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 22:21:37,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-23 22:21:37,581 INFO L87 Difference]: Start difference. First operand 5252 states and 8253 transitions. Second operand 6 states. [2018-10-23 22:21:52,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:21:52,934 INFO L93 Difference]: Finished difference Result 13914 states and 22498 transitions. [2018-10-23 22:21:52,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 22:21:52,937 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 104 [2018-10-23 22:21:52,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:21:52,981 INFO L225 Difference]: With dead ends: 13914 [2018-10-23 22:21:52,982 INFO L226 Difference]: Without dead ends: 8668 [2018-10-23 22:21:53,003 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 [2018-10-23 22:21:53,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8668 states. [2018-10-23 22:21:53,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8668 to 8605. [2018-10-23 22:21:53,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8605 states. [2018-10-23 22:21:53,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8605 states to 8605 states and 12803 transitions. [2018-10-23 22:21:53,200 INFO L78 Accepts]: Start accepts. Automaton has 8605 states and 12803 transitions. Word has length 104 [2018-10-23 22:21:53,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:21:53,201 INFO L481 AbstractCegarLoop]: Abstraction has 8605 states and 12803 transitions. [2018-10-23 22:21:53,201 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 22:21:53,201 INFO L276 IsEmpty]: Start isEmpty. Operand 8605 states and 12803 transitions. [2018-10-23 22:21:53,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-10-23 22:21:53,205 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:21:53,205 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 22:21:53,206 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:21:53,206 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:21:53,206 INFO L82 PathProgramCache]: Analyzing trace with hash -207674108, now seen corresponding path program 1 times [2018-10-23 22:21:53,206 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:21:53,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:21:53,207 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:21:53,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:21:53,208 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:21:53,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:21:53,367 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:21:53,368 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:21:53,368 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-23 22:21:53,368 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:21:53,368 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 22:21:53,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 22:21:53,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-23 22:21:53,369 INFO L87 Difference]: Start difference. First operand 8605 states and 12803 transitions. Second operand 5 states. [2018-10-23 22:22:07,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:22:07,486 INFO L93 Difference]: Finished difference Result 25982 states and 40339 transitions. [2018-10-23 22:22:07,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-23 22:22:07,486 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 114 [2018-10-23 22:22:07,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:22:07,566 INFO L225 Difference]: With dead ends: 25982 [2018-10-23 22:22:07,567 INFO L226 Difference]: Without dead ends: 17383 [2018-10-23 22:22:07,595 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 [2018-10-23 22:22:07,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17383 states. [2018-10-23 22:22:07,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17383 to 17120. [2018-10-23 22:22:07,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17120 states. [2018-10-23 22:22:08,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17120 states to 17120 states and 24327 transitions. [2018-10-23 22:22:08,036 INFO L78 Accepts]: Start accepts. Automaton has 17120 states and 24327 transitions. Word has length 114 [2018-10-23 22:22:08,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:22:08,037 INFO L481 AbstractCegarLoop]: Abstraction has 17120 states and 24327 transitions. [2018-10-23 22:22:08,037 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 22:22:08,037 INFO L276 IsEmpty]: Start isEmpty. Operand 17120 states and 24327 transitions. [2018-10-23 22:22:08,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-10-23 22:22:08,040 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:22:08,041 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 22:22:08,041 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:22:08,041 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:22:08,041 INFO L82 PathProgramCache]: Analyzing trace with hash 158864184, now seen corresponding path program 1 times [2018-10-23 22:22:08,042 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:22:08,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:22:08,045 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:22:08,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:22:08,045 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:22:08,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:22:08,503 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-23 22:22:08,503 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 22:22:08,503 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-23 22:22:08,504 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 132 with the following transitions: [2018-10-23 22:22:08,506 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2767], [2769], [2772], [2780], [2788], [2796], [2804], [2812], [2820], [2828], [2836], [2844], [2852], [2860], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-10-23 22:22:08,597 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-23 22:22:08,597 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-23 22:22:45,690 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-23 22:22:45,692 INFO L272 AbstractInterpreter]: Visited 108 different actions 720 times. Merged at 5 different actions 30 times. Widened at 1 different actions 2 times. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-10-23 22:22:45,706 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:22:45,706 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-23 22:22:48,156 INFO L232 lantSequenceWeakener]: Weakened 21 states. On average, predicates are now at 75.73% of their original sizes. [2018-10-23 22:22:48,156 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-23 22:22:53,705 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-23 22:22:53,706 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 22:22:53,707 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [5] total 17 [2018-10-23 22:22:53,707 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:22:53,708 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-23 22:22:53,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-23 22:22:53,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2018-10-23 22:22:53,709 INFO L87 Difference]: Start difference. First operand 17120 states and 24327 transitions. Second operand 14 states. [2018-10-23 22:23:22,561 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-23 22:24:44,650 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-23 22:24:44,651 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 22:24:44,657 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 22:24:44,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 10:24:44 BoogieIcfgContainer [2018-10-23 22:24:44,657 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 22:24:44,658 INFO L168 Benchmark]: Toolchain (without parser) took 235474.44 ms. Allocated memory was 1.5 GB in the beginning and 4.3 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -847.2 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-10-23 22:24:44,661 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 22:24:44,661 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2645.65 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: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-10-23 22:24:44,662 INFO L168 Benchmark]: Boogie Procedure Inliner took 640.87 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 817.9 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 73.0 MB. Max. memory is 7.1 GB. [2018-10-23 22:24:44,663 INFO L168 Benchmark]: Boogie Preprocessor took 402.02 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 55.7 MB). Peak memory consumption was 55.7 MB. Max. memory is 7.1 GB. [2018-10-23 22:24:44,664 INFO L168 Benchmark]: RCFGBuilder took 12018.40 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 178.8 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 18.7 MB). Peak memory consumption was 636.1 MB. Max. memory is 7.1 GB. [2018-10-23 22:24:44,665 INFO L168 Benchmark]: TraceAbstraction took 219762.10 ms. Allocated memory was 2.5 GB in the beginning and 4.3 GB in the end (delta: 1.7 GB). Free memory was 2.2 GB in the beginning and 2.3 GB in the end (delta: -82.8 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-10-23 22:24:44,671 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2645.65 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: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 640.87 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 817.9 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 73.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 402.02 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 55.7 MB). Peak memory consumption was 55.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 12018.40 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 178.8 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 18.7 MB). Peak memory consumption was 636.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 219762.10 ms. Allocated memory was 2.5 GB in the beginning and 4.3 GB in the end (delta: 1.7 GB). Free memory was 2.2 GB in the beginning and 2.3 GB in the end (delta: -82.8 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 81]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 81). Cancelled while BasicCegarLoop was constructing difference of abstraction (17120states) and FLOYD_HOARE automaton (currently 15 states, 14 states before enhancement),while ReachableStatesComputation was computing reachable states (1433 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 219.6s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 171.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1995 SDtfs, 14965 SDslu, 2268 SDs, 0 SdLazy, 24295 SolverSat, 7699 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 104.7s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 170 GetRequests, 129 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 7.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17120occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 37.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9931479289940829 AbsIntWeakeningRatio, 0.16153846153846155 AbsIntAvgWeakeningVarsNumRemoved, 45.746153846153845 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 4 MinimizatonAttempts, 1330 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 480 NumberOfCodeBlocks, 480 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 475 ConstructedInterpolants, 0 QuantifiedInterpolants, 200388 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 73/92 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown