java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label10_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 20:25:55,933 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 20:25:55,935 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 20:25:55,956 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 20:25:55,956 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 20:25:55,958 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 20:25:55,960 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 20:25:55,963 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 20:25:55,964 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 20:25:55,968 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 20:25:55,969 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 20:25:55,969 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 20:25:55,972 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 20:25:55,973 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 20:25:55,974 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 20:25:55,983 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 20:25:55,984 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 20:25:55,986 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 20:25:55,991 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 20:25:55,993 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 20:25:55,994 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 20:25:55,997 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 20:25:56,001 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 20:25:56,003 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 20:25:56,003 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 20:25:56,004 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 20:25:56,005 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 20:25:56,006 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 20:25:56,009 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 20:25:56,010 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 20:25:56,010 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 20:25:56,012 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 20:25:56,012 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 20:25:56,013 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 20:25:56,014 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 20:25:56,014 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 20:25:56,015 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-07 20:25:56,047 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 20:25:56,048 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 20:25:56,049 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 20:25:56,049 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 20:25:56,049 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 20:25:56,050 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 20:25:56,050 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-07 20:25:56,050 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 20:25:56,050 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 20:25:56,050 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 20:25:56,051 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 20:25:56,051 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 20:25:56,051 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 20:25:56,052 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 20:25:56,053 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 20:25:56,053 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 20:25:56,053 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 20:25:56,053 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 20:25:56,053 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 20:25:56,054 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 20:25:56,054 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 20:25:56,054 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 20:25:56,054 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 20:25:56,054 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 20:25:56,054 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 20:25:56,056 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 20:25:56,057 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 20:25:56,057 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 20:25:56,057 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 20:25:56,057 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 20:25:56,057 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 20:25:56,058 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 20:25:56,058 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 20:25:56,058 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 20:25:56,058 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 20:25:56,118 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 20:25:56,136 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 20:25:56,140 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 20:25:56,142 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 20:25:56,143 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 20:25:56,143 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label10_true-unreach-call.c [2018-11-07 20:25:56,203 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe82893c3/1537a413f8124b628b7db97b775ee55a/FLAG79bd6fa24 [2018-11-07 20:25:57,028 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 20:25:57,029 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label10_true-unreach-call.c [2018-11-07 20:25:57,072 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe82893c3/1537a413f8124b628b7db97b775ee55a/FLAG79bd6fa24 [2018-11-07 20:25:57,091 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe82893c3/1537a413f8124b628b7db97b775ee55a [2018-11-07 20:25:57,106 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 20:25:57,108 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 20:25:57,111 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 20:25:57,111 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 20:25:57,115 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 20:25:57,117 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:25:57" (1/1) ... [2018-11-07 20:25:57,120 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24e22a82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:25:57, skipping insertion in model container [2018-11-07 20:25:57,120 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:25:57" (1/1) ... [2018-11-07 20:25:57,132 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 20:25:57,338 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 20:25:58,868 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 20:25:58,874 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 20:25:59,682 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 20:25:59,717 INFO L193 MainTranslator]: Completed translation [2018-11-07 20:25:59,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:25:59 WrapperNode [2018-11-07 20:25:59,718 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 20:25:59,719 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 20:25:59,719 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 20:25:59,720 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 20:25:59,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:25:59" (1/1) ... [2018-11-07 20:26:00,074 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:25:59" (1/1) ... [2018-11-07 20:26:00,083 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 20:26:00,083 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 20:26:00,084 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 20:26:00,084 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 20:26:00,094 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:25:59" (1/1) ... [2018-11-07 20:26:00,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:25:59" (1/1) ... [2018-11-07 20:26:00,119 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:25:59" (1/1) ... [2018-11-07 20:26:00,119 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:25:59" (1/1) ... [2018-11-07 20:26:00,266 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:25:59" (1/1) ... [2018-11-07 20:26:00,305 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:25:59" (1/1) ... [2018-11-07 20:26:00,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:25:59" (1/1) ... [2018-11-07 20:26:00,377 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 20:26:00,377 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 20:26:00,378 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 20:26:00,378 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 20:26:00,379 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:25:59" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-11-07 20:26:00,452 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 20:26:00,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 20:26:00,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 20:26:00,454 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-07 20:26:00,454 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-07 20:26:00,454 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 20:26:00,455 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 20:26:00,455 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 20:26:00,455 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 20:26:00,455 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 20:26:00,455 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 20:26:00,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 20:26:00,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 20:26:00,458 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 20:26:00,458 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 20:26:09,851 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 20:26:09,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:26:09 BoogieIcfgContainer [2018-11-07 20:26:09,852 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 20:26:09,853 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 20:26:09,853 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 20:26:09,856 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 20:26:09,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:25:57" (1/3) ... [2018-11-07 20:26:09,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@235b1f08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:26:09, skipping insertion in model container [2018-11-07 20:26:09,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:25:59" (2/3) ... [2018-11-07 20:26:09,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@235b1f08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:26:09, skipping insertion in model container [2018-11-07 20:26:09,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:26:09" (3/3) ... [2018-11-07 20:26:09,860 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label10_true-unreach-call.c [2018-11-07 20:26:09,871 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 20:26:09,881 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 20:26:09,898 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 20:26:09,963 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 20:26:09,963 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 20:26:09,963 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 20:26:09,963 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 20:26:09,963 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 20:26:09,964 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 20:26:09,964 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 20:26:09,964 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 20:26:10,026 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-11-07 20:26:10,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-11-07 20:26:10,036 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:26:10,037 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:26:10,040 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:26:10,045 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:26:10,045 INFO L82 PathProgramCache]: Analyzing trace with hash -2099536220, now seen corresponding path program 1 times [2018-11-07 20:26:10,047 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:26:10,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:26:10,098 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:26:10,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:26:10,098 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:26:10,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:26:10,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:26:10,594 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:26:10,595 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 20:26:10,595 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:26:10,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 20:26:10,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 20:26:10,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 20:26:10,623 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 4 states. [2018-11-07 20:26:24,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:26:24,318 INFO L93 Difference]: Finished difference Result 4105 states and 7669 transitions. [2018-11-07 20:26:24,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 20:26:24,321 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2018-11-07 20:26:24,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:26:24,370 INFO L225 Difference]: With dead ends: 4105 [2018-11-07 20:26:24,370 INFO L226 Difference]: Without dead ends: 2979 [2018-11-07 20:26:24,384 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 20:26:24,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2979 states. [2018-11-07 20:26:24,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2979 to 2849. [2018-11-07 20:26:24,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2849 states. [2018-11-07 20:26:24,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2849 states to 2849 states and 5075 transitions. [2018-11-07 20:26:24,589 INFO L78 Accepts]: Start accepts. Automaton has 2849 states and 5075 transitions. Word has length 54 [2018-11-07 20:26:24,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:26:24,590 INFO L480 AbstractCegarLoop]: Abstraction has 2849 states and 5075 transitions. [2018-11-07 20:26:24,590 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 20:26:24,590 INFO L276 IsEmpty]: Start isEmpty. Operand 2849 states and 5075 transitions. [2018-11-07 20:26:24,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-11-07 20:26:24,602 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:26:24,603 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:26:24,603 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:26:24,603 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:26:24,603 INFO L82 PathProgramCache]: Analyzing trace with hash 5864073, now seen corresponding path program 1 times [2018-11-07 20:26:24,604 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:26:24,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:26:24,605 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:26:24,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:26:24,605 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:26:24,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:26:25,182 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:26:25,183 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:26:25,183 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 20:26:25,183 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:26:25,185 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 20:26:25,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 20:26:25,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 20:26:25,186 INFO L87 Difference]: Start difference. First operand 2849 states and 5075 transitions. Second operand 6 states. [2018-11-07 20:26:40,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:26:40,137 INFO L93 Difference]: Finished difference Result 10635 states and 19580 transitions. [2018-11-07 20:26:40,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 20:26:40,138 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 125 [2018-11-07 20:26:40,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:26:40,185 INFO L225 Difference]: With dead ends: 10635 [2018-11-07 20:26:40,185 INFO L226 Difference]: Without dead ends: 7792 [2018-11-07 20:26:40,204 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 20:26:40,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7792 states. [2018-11-07 20:26:40,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7792 to 7729. [2018-11-07 20:26:40,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7729 states. [2018-11-07 20:26:40,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7729 states to 7729 states and 12373 transitions. [2018-11-07 20:26:40,423 INFO L78 Accepts]: Start accepts. Automaton has 7729 states and 12373 transitions. Word has length 125 [2018-11-07 20:26:40,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:26:40,423 INFO L480 AbstractCegarLoop]: Abstraction has 7729 states and 12373 transitions. [2018-11-07 20:26:40,423 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 20:26:40,424 INFO L276 IsEmpty]: Start isEmpty. Operand 7729 states and 12373 transitions. [2018-11-07 20:26:40,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-11-07 20:26:40,437 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:26:40,438 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:26:40,438 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:26:40,438 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:26:40,439 INFO L82 PathProgramCache]: Analyzing trace with hash 652308344, now seen corresponding path program 1 times [2018-11-07 20:26:40,439 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:26:40,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:26:40,440 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:26:40,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:26:40,440 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:26:40,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:26:40,728 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:26:40,728 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:26:40,729 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 20:26:40,729 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:26:40,730 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 20:26:40,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 20:26:40,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 20:26:40,730 INFO L87 Difference]: Start difference. First operand 7729 states and 12373 transitions. Second operand 6 states. [2018-11-07 20:26:51,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:26:51,605 INFO L93 Difference]: Finished difference Result 20526 states and 33998 transitions. [2018-11-07 20:26:51,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 20:26:51,605 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 128 [2018-11-07 20:26:51,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:26:51,675 INFO L225 Difference]: With dead ends: 20526 [2018-11-07 20:26:51,675 INFO L226 Difference]: Without dead ends: 12803 [2018-11-07 20:26:51,712 INFO L604 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 [2018-11-07 20:26:51,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12803 states. [2018-11-07 20:26:51,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12803 to 12725. [2018-11-07 20:26:51,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12725 states. [2018-11-07 20:26:51,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12725 states to 12725 states and 19312 transitions. [2018-11-07 20:26:51,993 INFO L78 Accepts]: Start accepts. Automaton has 12725 states and 19312 transitions. Word has length 128 [2018-11-07 20:26:51,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:26:51,993 INFO L480 AbstractCegarLoop]: Abstraction has 12725 states and 19312 transitions. [2018-11-07 20:26:51,993 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 20:26:51,994 INFO L276 IsEmpty]: Start isEmpty. Operand 12725 states and 19312 transitions. [2018-11-07 20:26:52,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2018-11-07 20:26:52,004 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:26:52,004 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:26:52,005 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:26:52,005 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:26:52,005 INFO L82 PathProgramCache]: Analyzing trace with hash 1098248393, now seen corresponding path program 1 times [2018-11-07 20:26:52,005 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:26:52,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:26:52,006 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:26:52,007 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:26:52,007 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:26:52,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:26:52,414 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:26:52,415 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:26:52,415 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 20:26:52,415 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:26:52,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 20:26:52,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 20:26:52,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 20:26:52,416 INFO L87 Difference]: Start difference. First operand 12725 states and 19312 transitions. Second operand 5 states. [2018-11-07 20:27:02,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:27:02,820 INFO L93 Difference]: Finished difference Result 38404 states and 61833 transitions. [2018-11-07 20:27:02,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 20:27:02,827 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 214 [2018-11-07 20:27:02,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:27:02,952 INFO L225 Difference]: With dead ends: 38404 [2018-11-07 20:27:02,953 INFO L226 Difference]: Without dead ends: 25685 [2018-11-07 20:27:03,014 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 20:27:03,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25685 states. [2018-11-07 20:27:03,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25685 to 25392. [2018-11-07 20:27:03,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25392 states. [2018-11-07 20:27:03,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25392 states to 25392 states and 37263 transitions. [2018-11-07 20:27:03,601 INFO L78 Accepts]: Start accepts. Automaton has 25392 states and 37263 transitions. Word has length 214 [2018-11-07 20:27:03,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:27:03,601 INFO L480 AbstractCegarLoop]: Abstraction has 25392 states and 37263 transitions. [2018-11-07 20:27:03,601 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 20:27:03,602 INFO L276 IsEmpty]: Start isEmpty. Operand 25392 states and 37263 transitions. [2018-11-07 20:27:03,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2018-11-07 20:27:03,635 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:27:03,635 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:27:03,635 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:27:03,636 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:27:03,636 INFO L82 PathProgramCache]: Analyzing trace with hash -426955638, now seen corresponding path program 1 times [2018-11-07 20:27:03,636 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:27:03,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:27:03,637 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:27:03,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:27:03,637 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:27:03,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:27:03,977 WARN L179 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 20:27:04,432 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 94 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 20:27:04,432 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:27:04,433 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:27:04,433 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 288 with the following transitions: [2018-11-07 20:27:04,442 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2959], [2961], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3132], [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], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3321], [3325], [3329], [3333], [3344], [3355], [3366], [3370], [3374], [3378], [3382], [3386], [3390], [3394], [3398], [3402], [3406], [3410], [3414], [3425], [3429], [3440], [3451], [3455], [3459], [3463], [3467], [3471], [3475], [3479], [3483], [3487], [3498], [3502], [3506], [3517], [3521], [3525], [3529], [3533], [3537], [3541], [3545], [3556], [3560], [3564], [3568], [3571], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-11-07 20:27:04,522 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:27:04,523 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:27:05,653 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:27:05,657 INFO L272 AbstractInterpreter]: Visited 165 different actions 165 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-11-07 20:27:05,705 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:27:05,705 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:27:06,950 INFO L227 lantSequenceWeakener]: Weakened 265 states. On average, predicates are now at 71.48% of their original sizes. [2018-11-07 20:27:06,951 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:27:07,420 INFO L415 sIntCurrentIteration]: We unified 286 AI predicates to 286 [2018-11-07 20:27:07,421 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:27:07,422 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:27:07,422 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2018-11-07 20:27:07,422 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:27:07,423 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-07 20:27:07,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-07 20:27:07,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-11-07 20:27:07,424 INFO L87 Difference]: Start difference. First operand 25392 states and 37263 transitions. Second operand 11 states. [2018-11-07 20:27:21,779 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:27:53,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:27:53,380 INFO L93 Difference]: Finished difference Result 51587 states and 75620 transitions. [2018-11-07 20:27:53,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-07 20:27:53,381 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 287 [2018-11-07 20:27:53,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:27:53,469 INFO L225 Difference]: With dead ends: 51587 [2018-11-07 20:27:53,469 INFO L226 Difference]: Without dead ends: 26201 [2018-11-07 20:27:53,520 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 291 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2018-11-07 20:27:53,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26201 states. [2018-11-07 20:27:53,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26201 to 26196. [2018-11-07 20:27:53,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26196 states. [2018-11-07 20:27:53,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26196 states to 26196 states and 38079 transitions. [2018-11-07 20:27:53,981 INFO L78 Accepts]: Start accepts. Automaton has 26196 states and 38079 transitions. Word has length 287 [2018-11-07 20:27:53,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:27:53,981 INFO L480 AbstractCegarLoop]: Abstraction has 26196 states and 38079 transitions. [2018-11-07 20:27:53,982 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-07 20:27:53,982 INFO L276 IsEmpty]: Start isEmpty. Operand 26196 states and 38079 transitions. [2018-11-07 20:27:54,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2018-11-07 20:27:54,016 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:27:54,016 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:27:54,017 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:27:54,017 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:27:54,017 INFO L82 PathProgramCache]: Analyzing trace with hash -105574890, now seen corresponding path program 1 times [2018-11-07 20:27:54,018 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:27:54,019 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:27:54,019 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:27:54,019 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:27:54,019 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:27:54,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:27:54,703 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 217 proven. 72 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2018-11-07 20:27:54,703 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:27:54,703 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:27:54,704 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 389 with the following transitions: [2018-11-07 20:27:54,704 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2959], [2961], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3132], [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], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3321], [3325], [3329], [3333], [3344], [3355], [3366], [3370], [3374], [3378], [3382], [3386], [3390], [3394], [3398], [3402], [3406], [3410], [3414], [3425], [3429], [3440], [3451], [3455], [3459], [3463], [3467], [3471], [3475], [3479], [3483], [3487], [3498], [3502], [3506], [3517], [3521], [3525], [3529], [3533], [3537], [3541], [3545], [3556], [3560], [3564], [3568], [3571], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-11-07 20:27:54,710 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:27:54,711 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:27:55,290 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:27:55,291 INFO L272 AbstractInterpreter]: Visited 169 different actions 494 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-07 20:27:55,325 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:27:55,326 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:27:56,165 INFO L227 lantSequenceWeakener]: Weakened 136 states. On average, predicates are now at 70.86% of their original sizes. [2018-11-07 20:27:56,165 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:27:58,973 INFO L415 sIntCurrentIteration]: We unified 387 AI predicates to 387 [2018-11-07 20:27:58,974 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:27:58,974 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:27:58,974 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [6] total 17 [2018-11-07 20:27:58,975 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:27:58,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-07 20:27:58,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-07 20:27:58,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-11-07 20:27:58,977 INFO L87 Difference]: Start difference. First operand 26196 states and 38079 transitions. Second operand 13 states. [2018-11-07 20:28:08,086 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-07 20:29:23,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-07 20:29:23,901 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 20:29:23,907 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 20:29:23,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 08:29:23 BoogieIcfgContainer [2018-11-07 20:29:23,907 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 20:29:23,908 INFO L168 Benchmark]: Toolchain (without parser) took 206801.85 ms. Allocated memory was 1.5 GB in the beginning and 5.1 GB in the end (delta: 3.6 GB). Free memory was 1.4 GB in the beginning and 2.4 GB in the end (delta: -965.5 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-11-07 20:29:23,909 INFO L168 Benchmark]: CDTParser took 0.23 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. [2018-11-07 20:29:23,910 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2607.80 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. [2018-11-07 20:29:23,911 INFO L168 Benchmark]: Boogie Procedure Inliner took 363.96 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 811.1 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 67.6 MB. Max. memory is 7.1 GB. [2018-11-07 20:29:23,912 INFO L168 Benchmark]: Boogie Preprocessor took 293.68 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 36.7 MB). Peak memory consumption was 36.7 MB. Max. memory is 7.1 GB. [2018-11-07 20:29:23,913 INFO L168 Benchmark]: RCFGBuilder took 9474.34 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 158.9 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 27.9 MB). Peak memory consumption was 659.6 MB. Max. memory is 7.1 GB. [2018-11-07 20:29:23,914 INFO L168 Benchmark]: TraceAbstraction took 194054.72 ms. Allocated memory was 2.5 GB in the beginning and 5.1 GB in the end (delta: 2.6 GB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -171.0 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-11-07 20:29:23,920 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 2607.80 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 363.96 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 811.1 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 67.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 293.68 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 36.7 MB). Peak memory consumption was 36.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9474.34 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 158.9 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 27.9 MB). Peak memory consumption was 659.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 194054.72 ms. Allocated memory was 2.5 GB in the beginning and 5.1 GB in the end (delta: 2.6 GB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -171.0 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 153]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 153). Cancelled while BasicCegarLoop was constructing difference of abstraction (26196states) and FLOYD_HOARE automaton (currently 16 states, 13 states before enhancement),while ReachableStatesComputation was computing reachable states (35675 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 193.9s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 181.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3869 SDtfs, 19684 SDslu, 2903 SDs, 0 SdLazy, 35472 SolverSat, 7634 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 92.2s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 719 GetRequests, 553 SyntacticMatches, 113 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26196occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.8s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9978716814765656 AbsIntWeakeningRatio, 0.08915304606240713 AbsIntAvgWeakeningVarsNumRemoved, 8.355126300148589 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.7s AutomataMinimizationTime, 5 MinimizatonAttempts, 569 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 1196 NumberOfCodeBlocks, 1196 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1190 ConstructedInterpolants, 0 QuantifiedInterpolants, 825124 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 556/696 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown