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-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label02_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 08:46:41,858 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 08:46:41,861 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 08:46:41,881 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 08:46:41,881 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 08:46:41,882 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 08:46:41,884 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 08:46:41,886 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 08:46:41,887 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 08:46:41,888 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 08:46:41,889 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 08:46:41,889 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 08:46:41,890 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 08:46:41,891 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 08:46:41,894 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 08:46:41,895 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 08:46:41,896 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 08:46:41,899 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 08:46:41,905 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 08:46:41,909 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 08:46:41,913 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 08:46:41,915 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 08:46:41,921 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 08:46:41,921 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 08:46:41,921 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 08:46:41,922 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 08:46:41,923 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 08:46:41,926 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 08:46:41,927 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 08:46:41,928 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 08:46:41,931 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 08:46:41,931 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 08:46:41,932 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 08:46:41,932 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 08:46:41,933 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 08:46:41,933 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 08:46:41,936 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-11-07 08:46:41,966 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 08:46:41,968 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 08:46:41,969 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 08:46:41,970 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 08:46:41,970 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 08:46:41,970 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 08:46:41,971 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-07 08:46:41,971 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 08:46:41,971 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 08:46:41,971 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 08:46:41,971 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 08:46:41,971 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 08:46:41,972 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 08:46:41,972 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 08:46:41,974 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 08:46:41,974 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 08:46:41,974 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 08:46:41,974 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 08:46:41,974 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 08:46:41,975 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 08:46:41,975 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 08:46:41,975 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 08:46:41,975 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 08:46:41,975 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 08:46:41,977 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 08:46:41,977 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 08:46:41,977 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 08:46:41,978 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 08:46:41,978 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 08:46:41,978 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 08:46:41,978 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 08:46:41,978 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 08:46:41,979 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 08:46:41,979 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 08:46:41,979 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 08:46:41,980 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 08:46:42,055 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 08:46:42,075 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 08:46:42,080 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 08:46:42,082 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 08:46:42,082 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 08:46:42,083 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label02_true-unreach-call.c [2018-11-07 08:46:42,145 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/336a41af5/753a934eca7d4bc5a47bc152cc871de1/FLAG8b0a76f4d [2018-11-07 08:46:42,917 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 08:46:42,918 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label02_true-unreach-call.c [2018-11-07 08:46:42,954 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/336a41af5/753a934eca7d4bc5a47bc152cc871de1/FLAG8b0a76f4d [2018-11-07 08:46:42,976 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/336a41af5/753a934eca7d4bc5a47bc152cc871de1 [2018-11-07 08:46:42,989 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 08:46:42,992 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 08:46:42,993 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 08:46:42,993 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 08:46:42,998 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 08:46:42,999 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:46:42" (1/1) ... [2018-11-07 08:46:43,002 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@465fd05a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:46:43, skipping insertion in model container [2018-11-07 08:46:43,003 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:46:42" (1/1) ... [2018-11-07 08:46:43,014 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 08:46:43,204 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 08:46:44,719 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 08:46:44,724 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 08:46:45,571 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 08:46:45,609 INFO L193 MainTranslator]: Completed translation [2018-11-07 08:46:45,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:46:45 WrapperNode [2018-11-07 08:46:45,610 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 08:46:45,611 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 08:46:45,611 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 08:46:45,612 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 08:46:45,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:46:45" (1/1) ... [2018-11-07 08:46:45,962 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:46:45" (1/1) ... [2018-11-07 08:46:45,974 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 08:46:45,974 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 08:46:45,975 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 08:46:45,975 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 08:46:45,986 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:46:45" (1/1) ... [2018-11-07 08:46:45,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:46:45" (1/1) ... [2018-11-07 08:46:46,032 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:46:45" (1/1) ... [2018-11-07 08:46:46,032 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:46:45" (1/1) ... [2018-11-07 08:46:46,164 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:46:45" (1/1) ... [2018-11-07 08:46:46,213 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:46:45" (1/1) ... [2018-11-07 08:46:46,240 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:46:45" (1/1) ... [2018-11-07 08:46:46,270 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 08:46:46,271 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 08:46:46,271 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 08:46:46,271 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 08:46:46,272 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:46:45" (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 08:46:46,344 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 08:46:46,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 08:46:46,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 08:46:46,345 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-07 08:46:46,345 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-07 08:46:46,345 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 08:46:46,345 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 08:46:46,346 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 08:46:46,346 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 08:46:46,346 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 08:46:46,346 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 08:46:46,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 08:46:46,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 08:46:46,348 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 08:46:46,348 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 08:46:56,631 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 08:46:56,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:46:56 BoogieIcfgContainer [2018-11-07 08:46:56,632 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 08:46:56,633 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 08:46:56,634 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 08:46:56,638 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 08:46:56,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:46:42" (1/3) ... [2018-11-07 08:46:56,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fc41605 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:46:56, skipping insertion in model container [2018-11-07 08:46:56,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:46:45" (2/3) ... [2018-11-07 08:46:56,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fc41605 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:46:56, skipping insertion in model container [2018-11-07 08:46:56,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:46:56" (3/3) ... [2018-11-07 08:46:56,641 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label02_true-unreach-call.c [2018-11-07 08:46:56,652 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 08:46:56,665 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 08:46:56,682 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 08:46:56,731 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 08:46:56,731 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 08:46:56,731 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 08:46:56,732 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 08:46:56,732 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 08:46:56,732 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 08:46:56,732 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 08:46:56,732 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 08:46:56,783 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-11-07 08:46:56,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-07 08:46:56,791 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:46:56,793 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] [2018-11-07 08:46:56,795 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:46:56,800 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:46:56,801 INFO L82 PathProgramCache]: Analyzing trace with hash 608823044, now seen corresponding path program 1 times [2018-11-07 08:46:56,803 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:46:56,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:46:56,847 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:46:56,848 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:46:56,848 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:46:56,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:46:57,354 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-11-07 08:46:57,364 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 08:46:57,366 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:46:57,367 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 08:46:57,367 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:46:57,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 08:46:57,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 08:46:57,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 08:46:57,390 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 4 states. [2018-11-07 08:47:12,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:47:12,909 INFO L93 Difference]: Finished difference Result 4106 states and 7670 transitions. [2018-11-07 08:47:12,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 08:47:12,920 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 46 [2018-11-07 08:47:12,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:47:12,970 INFO L225 Difference]: With dead ends: 4106 [2018-11-07 08:47:12,970 INFO L226 Difference]: Without dead ends: 2980 [2018-11-07 08:47:12,984 INFO L604 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 [2018-11-07 08:47:13,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2980 states. [2018-11-07 08:47:13,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2980 to 2850. [2018-11-07 08:47:13,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2850 states. [2018-11-07 08:47:13,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2850 states to 2850 states and 5076 transitions. [2018-11-07 08:47:13,167 INFO L78 Accepts]: Start accepts. Automaton has 2850 states and 5076 transitions. Word has length 46 [2018-11-07 08:47:13,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:47:13,168 INFO L480 AbstractCegarLoop]: Abstraction has 2850 states and 5076 transitions. [2018-11-07 08:47:13,168 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 08:47:13,168 INFO L276 IsEmpty]: Start isEmpty. Operand 2850 states and 5076 transitions. [2018-11-07 08:47:13,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-11-07 08:47:13,177 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:47:13,178 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:47:13,178 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:47:13,178 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:47:13,178 INFO L82 PathProgramCache]: Analyzing trace with hash -248268951, now seen corresponding path program 1 times [2018-11-07 08:47:13,179 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:47:13,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:47:13,180 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:47:13,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:47:13,180 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:47:13,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:47:13,742 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:47:13,743 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:47:13,743 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 08:47:13,743 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:47:13,745 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 08:47:13,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 08:47:13,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 08:47:13,746 INFO L87 Difference]: Start difference. First operand 2850 states and 5076 transitions. Second operand 6 states. [2018-11-07 08:47:28,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:47:28,625 INFO L93 Difference]: Finished difference Result 10636 states and 19581 transitions. [2018-11-07 08:47:28,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 08:47:28,625 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 117 [2018-11-07 08:47:28,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:47:28,670 INFO L225 Difference]: With dead ends: 10636 [2018-11-07 08:47:28,671 INFO L226 Difference]: Without dead ends: 7792 [2018-11-07 08:47:28,690 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 08:47:28,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7792 states. [2018-11-07 08:47:28,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7792 to 7730. [2018-11-07 08:47:28,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7730 states. [2018-11-07 08:47:28,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7730 states to 7730 states and 12374 transitions. [2018-11-07 08:47:28,887 INFO L78 Accepts]: Start accepts. Automaton has 7730 states and 12374 transitions. Word has length 117 [2018-11-07 08:47:28,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:47:28,888 INFO L480 AbstractCegarLoop]: Abstraction has 7730 states and 12374 transitions. [2018-11-07 08:47:28,888 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 08:47:28,889 INFO L276 IsEmpty]: Start isEmpty. Operand 7730 states and 12374 transitions. [2018-11-07 08:47:28,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2018-11-07 08:47:28,895 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:47:28,896 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:47:28,896 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:47:28,896 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:47:28,896 INFO L82 PathProgramCache]: Analyzing trace with hash -1062052776, now seen corresponding path program 1 times [2018-11-07 08:47:28,897 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:47:28,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:47:28,898 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:47:28,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:47:28,898 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:47:28,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:47:29,185 WARN L179 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 08:47:29,232 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:47:29,233 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:47:29,233 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 08:47:29,233 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:47:29,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 08:47:29,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 08:47:29,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 08:47:29,235 INFO L87 Difference]: Start difference. First operand 7730 states and 12374 transitions. Second operand 6 states. [2018-11-07 08:47:40,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:47:40,287 INFO L93 Difference]: Finished difference Result 20527 states and 33999 transitions. [2018-11-07 08:47:40,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 08:47:40,288 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 120 [2018-11-07 08:47:40,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:47:40,352 INFO L225 Difference]: With dead ends: 20527 [2018-11-07 08:47:40,353 INFO L226 Difference]: Without dead ends: 12803 [2018-11-07 08:47:40,385 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 08:47:40,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12803 states. [2018-11-07 08:47:40,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12803 to 12726. [2018-11-07 08:47:40,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12726 states. [2018-11-07 08:47:40,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12726 states to 12726 states and 19313 transitions. [2018-11-07 08:47:40,705 INFO L78 Accepts]: Start accepts. Automaton has 12726 states and 19313 transitions. Word has length 120 [2018-11-07 08:47:40,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:47:40,706 INFO L480 AbstractCegarLoop]: Abstraction has 12726 states and 19313 transitions. [2018-11-07 08:47:40,706 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 08:47:40,706 INFO L276 IsEmpty]: Start isEmpty. Operand 12726 states and 19313 transitions. [2018-11-07 08:47:40,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-11-07 08:47:40,711 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:47:40,711 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:47:40,713 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:47:40,713 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:47:40,713 INFO L82 PathProgramCache]: Analyzing trace with hash 2127704900, now seen corresponding path program 1 times [2018-11-07 08:47:40,713 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:47:40,714 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:47:40,714 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:47:40,714 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:47:40,715 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:47:40,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:47:41,027 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:47:41,028 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:47:41,028 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 08:47:41,028 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:47:41,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 08:47:41,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 08:47:41,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 08:47:41,031 INFO L87 Difference]: Start difference. First operand 12726 states and 19313 transitions. Second operand 5 states. [2018-11-07 08:47:51,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:47:51,193 INFO L93 Difference]: Finished difference Result 38411 states and 61848 transitions. [2018-11-07 08:47:51,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 08:47:51,195 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 130 [2018-11-07 08:47:51,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:47:51,335 INFO L225 Difference]: With dead ends: 38411 [2018-11-07 08:47:51,336 INFO L226 Difference]: Without dead ends: 25691 [2018-11-07 08:47:51,389 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 08:47:51,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25691 states. [2018-11-07 08:47:52,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25691 to 25398. [2018-11-07 08:47:52,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25398 states. [2018-11-07 08:47:52,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25398 states to 25398 states and 37277 transitions. [2018-11-07 08:47:52,087 INFO L78 Accepts]: Start accepts. Automaton has 25398 states and 37277 transitions. Word has length 130 [2018-11-07 08:47:52,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:47:52,087 INFO L480 AbstractCegarLoop]: Abstraction has 25398 states and 37277 transitions. [2018-11-07 08:47:52,088 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 08:47:52,088 INFO L276 IsEmpty]: Start isEmpty. Operand 25398 states and 37277 transitions. [2018-11-07 08:47:52,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-11-07 08:47:52,092 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:47:52,093 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:47:52,093 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:47:52,093 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:47:52,093 INFO L82 PathProgramCache]: Analyzing trace with hash -334570632, now seen corresponding path program 1 times [2018-11-07 08:47:52,094 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:47:52,094 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:47:52,095 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:47:52,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:47:52,095 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:47:52,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:47:52,383 WARN L179 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 08:47:52,951 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 22 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:47:52,952 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:47:52,952 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 08:47:52,953 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 148 with the following transitions: [2018-11-07 08:47:52,956 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], [2895], [2897], [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] [2018-11-07 08:47:53,012 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 08:47:53,012 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 08:47:53,957 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 08:47:53,959 INFO L272 AbstractInterpreter]: Visited 108 different actions 311 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 08:47:53,982 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:47:53,982 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 08:47:54,292 INFO L227 lantSequenceWeakener]: Weakened 144 states. On average, predicates are now at 71.47% of their original sizes. [2018-11-07 08:47:54,292 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 08:47:54,861 INFO L415 sIntCurrentIteration]: We unified 146 AI predicates to 146 [2018-11-07 08:47:54,861 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 08:47:54,862 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 08:47:54,862 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [7] total 15 [2018-11-07 08:47:54,863 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:47:54,863 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-07 08:47:54,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-07 08:47:54,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-07 08:47:54,864 INFO L87 Difference]: Start difference. First operand 25398 states and 37277 transitions. Second operand 10 states. Received shutdown request... [2018-11-07 08:50:44,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-07 08:50:44,136 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 08:50:44,142 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 08:50:44,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 08:50:44 BoogieIcfgContainer [2018-11-07 08:50:44,142 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 08:50:44,143 INFO L168 Benchmark]: Toolchain (without parser) took 241152.76 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.9 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-11-07 08:50:44,144 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 08:50:44,145 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2617.53 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 243.1 MB). Peak memory consumption was 243.1 MB. Max. memory is 7.1 GB. [2018-11-07 08:50:44,146 INFO L168 Benchmark]: Boogie Procedure Inliner took 363.03 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 789.6 MB). Free memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 67.7 MB. Max. memory is 7.1 GB. [2018-11-07 08:50:44,147 INFO L168 Benchmark]: Boogie Preprocessor took 296.27 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 36.8 MB). Peak memory consumption was 36.8 MB. Max. memory is 7.1 GB. [2018-11-07 08:50:44,148 INFO L168 Benchmark]: RCFGBuilder took 10361.43 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 166.7 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 23.5 MB). Peak memory consumption was 667.5 MB. Max. memory is 7.1 GB. [2018-11-07 08:50:44,149 INFO L168 Benchmark]: TraceAbstraction took 227509.13 ms. Allocated memory was 2.5 GB in the beginning and 4.1 GB in the end (delta: 1.7 GB). Free memory was 2.2 GB in the beginning and 2.9 GB in the end (delta: -706.2 MB). Peak memory consumption was 954.8 MB. Max. memory is 7.1 GB. [2018-11-07 08:50:44,154 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2617.53 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 243.1 MB). Peak memory consumption was 243.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 363.03 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 789.6 MB). Free memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 67.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 296.27 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 36.8 MB). Peak memory consumption was 36.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10361.43 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 166.7 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 23.5 MB). Peak memory consumption was 667.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 227509.13 ms. Allocated memory was 2.5 GB in the beginning and 4.1 GB in the end (delta: 1.7 GB). Free memory was 2.2 GB in the beginning and 2.9 GB in the end (delta: -706.2 MB). Peak memory consumption was 954.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 129]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 129). Cancelled while BasicCegarLoop was constructing difference of abstraction (25398states) and FLOYD_HOARE automaton (currently 12 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (11227 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 227.4s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 221.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2009 SDtfs, 15954 SDslu, 2777 SDs, 0 SdLazy, 26268 SolverSat, 8207 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 190.4s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 189 GetRequests, 149 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25398occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.0s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9971181890374866 AbsIntWeakeningRatio, 0.14383561643835616 AbsIntAvgWeakeningVarsNumRemoved, 16.054794520547944 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 562 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 560 NumberOfCodeBlocks, 560 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 555 ConstructedInterpolants, 0 QuantifiedInterpolants, 312958 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 139/156 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown