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_label39_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 20:29:37,577 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 20:29:37,580 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 20:29:37,592 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 20:29:37,592 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 20:29:37,593 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 20:29:37,595 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 20:29:37,596 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 20:29:37,598 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 20:29:37,599 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 20:29:37,600 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 20:29:37,600 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 20:29:37,601 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 20:29:37,602 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 20:29:37,604 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 20:29:37,604 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 20:29:37,605 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 20:29:37,607 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 20:29:37,609 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 20:29:37,611 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 20:29:37,612 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 20:29:37,613 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 20:29:37,616 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 20:29:37,616 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 20:29:37,616 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 20:29:37,617 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 20:29:37,618 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 20:29:37,619 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 20:29:37,620 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 20:29:37,621 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 20:29:37,622 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 20:29:37,622 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 20:29:37,623 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 20:29:37,623 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 20:29:37,624 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 20:29:37,625 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 20:29:37,625 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 20:29:37,643 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 20:29:37,643 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 20:29:37,644 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 20:29:37,644 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 20:29:37,645 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 20:29:37,645 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 20:29:37,645 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-07 20:29:37,645 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 20:29:37,645 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 20:29:37,646 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 20:29:37,646 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 20:29:37,646 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 20:29:37,646 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 20:29:37,647 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 20:29:37,647 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 20:29:37,647 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 20:29:37,648 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 20:29:37,648 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 20:29:37,648 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 20:29:37,648 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 20:29:37,648 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 20:29:37,649 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 20:29:37,649 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 20:29:37,649 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 20:29:37,649 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 20:29:37,649 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 20:29:37,650 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 20:29:37,650 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 20:29:37,650 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 20:29:37,650 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 20:29:37,650 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 20:29:37,650 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 20:29:37,651 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 20:29:37,651 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 20:29:37,651 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 20:29:37,704 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 20:29:37,724 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 20:29:37,728 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 20:29:37,730 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 20:29:37,730 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 20:29:37,731 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label39_true-unreach-call.c [2018-11-07 20:29:37,797 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92002823d/08336f03e64e4e3db7902d771b20ca4c/FLAGf17ff2c64 [2018-11-07 20:29:38,660 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 20:29:38,661 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label39_true-unreach-call.c [2018-11-07 20:29:38,702 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92002823d/08336f03e64e4e3db7902d771b20ca4c/FLAGf17ff2c64 [2018-11-07 20:29:38,723 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92002823d/08336f03e64e4e3db7902d771b20ca4c [2018-11-07 20:29:38,735 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 20:29:38,739 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 20:29:38,740 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 20:29:38,741 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 20:29:38,747 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 20:29:38,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:29:38" (1/1) ... [2018-11-07 20:29:38,752 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@769df590 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:38, skipping insertion in model container [2018-11-07 20:29:38,753 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:29:38" (1/1) ... [2018-11-07 20:29:38,764 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 20:29:38,970 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 20:29:40,484 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 20:29:40,490 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 20:29:41,244 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 20:29:41,282 INFO L193 MainTranslator]: Completed translation [2018-11-07 20:29:41,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:41 WrapperNode [2018-11-07 20:29:41,282 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 20:29:41,284 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 20:29:41,284 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 20:29:41,285 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 20:29:41,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:41" (1/1) ... [2018-11-07 20:29:41,672 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:41" (1/1) ... [2018-11-07 20:29:41,691 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 20:29:41,694 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 20:29:41,694 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 20:29:41,694 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 20:29:41,707 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:41" (1/1) ... [2018-11-07 20:29:41,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:41" (1/1) ... [2018-11-07 20:29:41,740 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:41" (1/1) ... [2018-11-07 20:29:41,740 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:41" (1/1) ... [2018-11-07 20:29:41,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:41" (1/1) ... [2018-11-07 20:29:41,923 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:41" (1/1) ... [2018-11-07 20:29:41,955 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:41" (1/1) ... [2018-11-07 20:29:41,989 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 20:29:41,990 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 20:29:41,990 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 20:29:41,990 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 20:29:41,991 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:41" (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 20:29:42,064 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 20:29:42,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 20:29:42,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 20:29:42,065 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-07 20:29:42,065 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-07 20:29:42,065 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 20:29:42,066 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 20:29:42,066 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 20:29:42,066 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 20:29:42,066 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 20:29:42,067 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 20:29:42,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 20:29:42,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 20:29:42,068 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 20:29:42,068 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 20:29:52,902 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 20:29:52,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:29:52 BoogieIcfgContainer [2018-11-07 20:29:52,903 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 20:29:52,904 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 20:29:52,904 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 20:29:52,908 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 20:29:52,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:29:38" (1/3) ... [2018-11-07 20:29:52,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e22521b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:29:52, skipping insertion in model container [2018-11-07 20:29:52,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:41" (2/3) ... [2018-11-07 20:29:52,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e22521b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:29:52, skipping insertion in model container [2018-11-07 20:29:52,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:29:52" (3/3) ... [2018-11-07 20:29:52,912 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label39_true-unreach-call.c [2018-11-07 20:29:52,922 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 20:29:52,934 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 20:29:52,953 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 20:29:53,010 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 20:29:53,010 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 20:29:53,010 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 20:29:53,011 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 20:29:53,011 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 20:29:53,011 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 20:29:53,011 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 20:29:53,011 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 20:29:53,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-11-07 20:29:53,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-11-07 20:29:53,082 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:29:53,083 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:29:53,085 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:29:53,090 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:29:53,091 INFO L82 PathProgramCache]: Analyzing trace with hash 1706781300, now seen corresponding path program 1 times [2018-11-07 20:29:53,093 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:29:53,150 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:29:53,150 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:29:53,150 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:29:53,150 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:29:53,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:29:53,611 WARN L179 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 20:29:53,777 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 20:29:53,780 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:29:53,780 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 20:29:53,780 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:29:53,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 20:29:53,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 20:29:53,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 20:29:53,803 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-11-07 20:30:03,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:30:03,092 INFO L93 Difference]: Finished difference Result 3097 states and 5707 transitions. [2018-11-07 20:30:03,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 20:30:03,094 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2018-11-07 20:30:03,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:30:03,126 INFO L225 Difference]: With dead ends: 3097 [2018-11-07 20:30:03,127 INFO L226 Difference]: Without dead ends: 1975 [2018-11-07 20:30:03,136 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 20:30:03,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2018-11-07 20:30:03,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1974. [2018-11-07 20:30:03,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1974 states. [2018-11-07 20:30:03,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1974 states to 1974 states and 3284 transitions. [2018-11-07 20:30:03,303 INFO L78 Accepts]: Start accepts. Automaton has 1974 states and 3284 transitions. Word has length 58 [2018-11-07 20:30:03,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:30:03,304 INFO L480 AbstractCegarLoop]: Abstraction has 1974 states and 3284 transitions. [2018-11-07 20:30:03,304 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 20:30:03,304 INFO L276 IsEmpty]: Start isEmpty. Operand 1974 states and 3284 transitions. [2018-11-07 20:30:03,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-11-07 20:30:03,317 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:30:03,318 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:30:03,318 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:30:03,318 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:30:03,319 INFO L82 PathProgramCache]: Analyzing trace with hash 865550532, now seen corresponding path program 1 times [2018-11-07 20:30:03,319 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:30:03,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:30:03,320 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:30:03,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:30:03,321 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:30:03,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:30:03,713 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:30:03,714 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:30:03,714 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 20:30:03,714 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:30:03,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 20:30:03,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 20:30:03,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 20:30:03,717 INFO L87 Difference]: Start difference. First operand 1974 states and 3284 transitions. Second operand 5 states. [2018-11-07 20:30:18,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:30:18,499 INFO L93 Difference]: Finished difference Result 5734 states and 9688 transitions. [2018-11-07 20:30:18,503 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 20:30:18,503 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 134 [2018-11-07 20:30:18,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:30:18,532 INFO L225 Difference]: With dead ends: 5734 [2018-11-07 20:30:18,533 INFO L226 Difference]: Without dead ends: 3766 [2018-11-07 20:30:18,539 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 20:30:18,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3766 states. [2018-11-07 20:30:18,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3766 to 3681. [2018-11-07 20:30:18,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3681 states. [2018-11-07 20:30:18,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3681 states to 3681 states and 5655 transitions. [2018-11-07 20:30:18,675 INFO L78 Accepts]: Start accepts. Automaton has 3681 states and 5655 transitions. Word has length 134 [2018-11-07 20:30:18,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:30:18,675 INFO L480 AbstractCegarLoop]: Abstraction has 3681 states and 5655 transitions. [2018-11-07 20:30:18,675 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 20:30:18,676 INFO L276 IsEmpty]: Start isEmpty. Operand 3681 states and 5655 transitions. [2018-11-07 20:30:18,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-11-07 20:30:18,691 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:30:18,692 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:30:18,692 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:30:18,692 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:30:18,693 INFO L82 PathProgramCache]: Analyzing trace with hash 1845926312, now seen corresponding path program 1 times [2018-11-07 20:30:18,693 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:30:18,694 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:30:18,694 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:30:18,694 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:30:18,694 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:30:18,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:30:18,955 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:30:18,956 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:30:18,956 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 20:30:18,956 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:30:18,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 20:30:18,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 20:30:18,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 20:30:18,958 INFO L87 Difference]: Start difference. First operand 3681 states and 5655 transitions. Second operand 5 states. [2018-11-07 20:30:38,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:30:38,314 INFO L93 Difference]: Finished difference Result 13644 states and 21724 transitions. [2018-11-07 20:30:38,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 20:30:38,321 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2018-11-07 20:30:38,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:30:38,388 INFO L225 Difference]: With dead ends: 13644 [2018-11-07 20:30:38,389 INFO L226 Difference]: Without dead ends: 9969 [2018-11-07 20:30:38,416 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 20:30:38,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9969 states. [2018-11-07 20:30:38,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9969 to 9782. [2018-11-07 20:30:38,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9782 states. [2018-11-07 20:30:38,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9782 states to 9782 states and 14480 transitions. [2018-11-07 20:30:38,720 INFO L78 Accepts]: Start accepts. Automaton has 9782 states and 14480 transitions. Word has length 148 [2018-11-07 20:30:38,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:30:38,720 INFO L480 AbstractCegarLoop]: Abstraction has 9782 states and 14480 transitions. [2018-11-07 20:30:38,720 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 20:30:38,721 INFO L276 IsEmpty]: Start isEmpty. Operand 9782 states and 14480 transitions. [2018-11-07 20:30:38,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2018-11-07 20:30:38,729 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:30:38,729 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:30:38,729 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:30:38,730 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:30:38,730 INFO L82 PathProgramCache]: Analyzing trace with hash 150914948, now seen corresponding path program 1 times [2018-11-07 20:30:38,730 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:30:38,734 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:30:38,735 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:30:38,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:30:38,735 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:30:38,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:30:39,078 WARN L179 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 20:30:39,469 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:30:39,469 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:30:39,470 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 20:30:39,470 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:30:39,470 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 20:30:39,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 20:30:39,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 20:30:39,471 INFO L87 Difference]: Start difference. First operand 9782 states and 14480 transitions. Second operand 6 states. [2018-11-07 20:30:53,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:30:53,990 INFO L93 Difference]: Finished difference Result 34078 states and 53555 transitions. [2018-11-07 20:30:53,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 20:30:53,996 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 166 [2018-11-07 20:30:53,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:30:54,112 INFO L225 Difference]: With dead ends: 34078 [2018-11-07 20:30:54,112 INFO L226 Difference]: Without dead ends: 24302 [2018-11-07 20:30:54,182 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 20:30:54,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24302 states. [2018-11-07 20:30:54,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24302 to 24079. [2018-11-07 20:30:54,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24079 states. [2018-11-07 20:30:54,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24079 states to 24079 states and 33903 transitions. [2018-11-07 20:30:54,794 INFO L78 Accepts]: Start accepts. Automaton has 24079 states and 33903 transitions. Word has length 166 [2018-11-07 20:30:54,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:30:54,795 INFO L480 AbstractCegarLoop]: Abstraction has 24079 states and 33903 transitions. [2018-11-07 20:30:54,795 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 20:30:54,795 INFO L276 IsEmpty]: Start isEmpty. Operand 24079 states and 33903 transitions. [2018-11-07 20:30:54,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-11-07 20:30:54,802 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:30:54,803 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:30:54,803 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:30:54,803 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:30:54,803 INFO L82 PathProgramCache]: Analyzing trace with hash -660194316, now seen corresponding path program 1 times [2018-11-07 20:30:54,803 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:30:54,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:30:54,804 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:30:54,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:30:54,805 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:30:54,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:30:55,575 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 4 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:30:55,575 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:30:55,575 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:30:55,576 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 175 with the following transitions: [2018-11-07 20:30:55,584 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], [2963], [2971], [2979], [2987], [2991], [2993], [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], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3321], [3325], [3329], [3332], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-11-07 20:30:55,667 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:30:55,668 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:30:56,508 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:30:56,510 INFO L272 AbstractInterpreter]: Visited 120 different actions 120 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-11-07 20:30:56,562 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:30:56,562 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:30:57,212 INFO L227 lantSequenceWeakener]: Weakened 158 states. On average, predicates are now at 72.03% of their original sizes. [2018-11-07 20:30:57,213 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:30:58,132 INFO L415 sIntCurrentIteration]: We unified 173 AI predicates to 173 [2018-11-07 20:30:58,133 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:30:58,134 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:30:58,134 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [7] total 16 [2018-11-07 20:30:58,134 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:30:58,135 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-07 20:30:58,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-07 20:30:58,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-11-07 20:30:58,135 INFO L87 Difference]: Start difference. First operand 24079 states and 33903 transitions. Second operand 11 states. [2018-11-07 20:31:10,106 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:31:57,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:31:57,163 INFO L93 Difference]: Finished difference Result 48961 states and 68788 transitions. [2018-11-07 20:31:57,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-07 20:31:57,164 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 174 [2018-11-07 20:31:57,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:31:57,262 INFO L225 Difference]: With dead ends: 48961 [2018-11-07 20:31:57,262 INFO L226 Difference]: Without dead ends: 24888 [2018-11-07 20:31:57,320 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 178 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2018-11-07 20:31:57,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24888 states. [2018-11-07 20:31:57,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24888 to 24883. [2018-11-07 20:31:57,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24883 states. [2018-11-07 20:31:57,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24883 states to 24883 states and 34718 transitions. [2018-11-07 20:31:57,894 INFO L78 Accepts]: Start accepts. Automaton has 24883 states and 34718 transitions. Word has length 174 [2018-11-07 20:31:57,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:31:57,895 INFO L480 AbstractCegarLoop]: Abstraction has 24883 states and 34718 transitions. [2018-11-07 20:31:57,895 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-07 20:31:57,895 INFO L276 IsEmpty]: Start isEmpty. Operand 24883 states and 34718 transitions. [2018-11-07 20:31:57,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2018-11-07 20:31:57,900 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:31:57,900 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:31:57,901 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:31:57,901 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:31:57,901 INFO L82 PathProgramCache]: Analyzing trace with hash -947173967, now seen corresponding path program 1 times [2018-11-07 20:31:57,901 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:31:57,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:31:57,903 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:31:57,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:31:57,904 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:31:57,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:31:58,655 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:31:58,656 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:31:58,656 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:31:58,656 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 189 with the following transitions: [2018-11-07 20:31:58,657 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], [2963], [2971], [2979], [2987], [2991], [2993], [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], [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], [3409], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-11-07 20:31:58,666 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:31:58,667 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:31:59,149 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 20:31:59,149 INFO L272 AbstractInterpreter]: Visited 138 different actions 400 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 20:31:59,183 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:31:59,184 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 20:31:59,185 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:31:59,185 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 20:31:59,212 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:31:59,212 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 20:31:59,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:31:59,326 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 20:31:59,873 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 15 [2018-11-07 20:32:00,070 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:32:00,070 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 20:32:00,364 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:32:00,395 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-07 20:32:00,395 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 6] total 9 [2018-11-07 20:32:00,395 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:32:00,396 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 20:32:00,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 20:32:00,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-11-07 20:32:00,397 INFO L87 Difference]: Start difference. First operand 24883 states and 34718 transitions. Second operand 3 states. [2018-11-07 20:32:11,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:32:11,353 INFO L93 Difference]: Finished difference Result 62720 states and 90548 transitions. [2018-11-07 20:32:11,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 20:32:11,354 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 188 [2018-11-07 20:32:11,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:32:11,529 INFO L225 Difference]: With dead ends: 62720 [2018-11-07 20:32:11,530 INFO L226 Difference]: Without dead ends: 38647 [2018-11-07 20:32:11,660 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 373 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-11-07 20:32:11,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38647 states. [2018-11-07 20:32:12,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38647 to 37020. [2018-11-07 20:32:12,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37020 states. [2018-11-07 20:32:12,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37020 states to 37020 states and 49606 transitions. [2018-11-07 20:32:12,761 INFO L78 Accepts]: Start accepts. Automaton has 37020 states and 49606 transitions. Word has length 188 [2018-11-07 20:32:12,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:32:12,762 INFO L480 AbstractCegarLoop]: Abstraction has 37020 states and 49606 transitions. [2018-11-07 20:32:12,762 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 20:32:12,762 INFO L276 IsEmpty]: Start isEmpty. Operand 37020 states and 49606 transitions. [2018-11-07 20:32:12,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2018-11-07 20:32:12,772 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:32:12,772 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 20:32:12,773 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:32:12,773 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:32:12,773 INFO L82 PathProgramCache]: Analyzing trace with hash -447027236, now seen corresponding path program 1 times [2018-11-07 20:32:12,773 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:32:12,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:32:12,776 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:32:12,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:32:12,776 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:32:12,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:32:13,097 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 20:32:13,581 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 103 proven. 22 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-11-07 20:32:13,581 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:32:13,582 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:32:13,582 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 250 with the following transitions: [2018-11-07 20:32:13,583 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], [2963], [2971], [2979], [2987], [2991], [2993], [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], [3221], [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 20:32:13,587 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:32:13,589 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:32:14,556 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:32:14,556 INFO L272 AbstractInterpreter]: Visited 109 different actions 314 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 20:32:14,601 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:32:14,601 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:32:15,375 INFO L227 lantSequenceWeakener]: Weakened 46 states. On average, predicates are now at 71.29% of their original sizes. [2018-11-07 20:32:15,375 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:32:18,058 INFO L415 sIntCurrentIteration]: We unified 248 AI predicates to 248 [2018-11-07 20:32:18,059 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:32:18,059 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:32:18,060 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [6] total 17 [2018-11-07 20:32:18,060 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:32:18,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-07 20:32:18,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-07 20:32:18,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-11-07 20:32:18,062 INFO L87 Difference]: Start difference. First operand 37020 states and 49606 transitions. Second operand 13 states. [2018-11-07 20:32:28,737 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-07 20:33:09,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-07 20:33:09,229 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 20:33:09,234 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 20:33:09,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 08:33:09 BoogieIcfgContainer [2018-11-07 20:33:09,234 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 20:33:09,235 INFO L168 Benchmark]: Toolchain (without parser) took 210499.30 ms. Allocated memory was 1.5 GB in the beginning and 4.3 GB in the end (delta: 2.8 GB). Free memory was 1.4 GB in the beginning and 2.8 GB in the end (delta: -1.4 GB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-11-07 20:33:09,237 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 20:33:09,237 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2543.23 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: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-11-07 20:33:09,238 INFO L168 Benchmark]: Boogie Procedure Inliner took 407.18 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 782.2 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 20:33:09,239 INFO L168 Benchmark]: Boogie Preprocessor took 295.52 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: 37.2 MB). Peak memory consumption was 37.2 MB. Max. memory is 7.1 GB. [2018-11-07 20:33:09,240 INFO L168 Benchmark]: RCFGBuilder took 10913.72 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 184.5 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: -20.5 MB). Peak memory consumption was 682.8 MB. Max. memory is 7.1 GB. [2018-11-07 20:33:09,241 INFO L168 Benchmark]: TraceAbstraction took 196330.32 ms. Allocated memory was 2.5 GB in the beginning and 4.3 GB in the end (delta: 1.9 GB). Free memory was 2.2 GB in the beginning and 2.8 GB in the end (delta: -598.5 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-11-07 20:33:09,246 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2543.23 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: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 407.18 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 782.2 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 295.52 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: 37.2 MB). Peak memory consumption was 37.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10913.72 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 184.5 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: -20.5 MB). Peak memory consumption was 682.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 196330.32 ms. Allocated memory was 2.5 GB in the beginning and 4.3 GB in the end (delta: 1.9 GB). Free memory was 2.2 GB in the beginning and 2.8 GB in the end (delta: -598.5 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 165]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 165). Cancelled while BasicCegarLoop was constructing difference of abstraction (37020states) and FLOYD_HOARE automaton (currently 16 states, 13 states before enhancement),while ReachableStatesComputation was computing reachable states (29158 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 196.2s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 179.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5802 SDtfs, 17377 SDslu, 3292 SDs, 0 SdLazy, 37199 SolverSat, 6751 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 92.8s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 849 GetRequests, 732 SyntacticMatches, 59 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 6.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37020occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.5s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.9975924222082436 AbsIntWeakeningRatio, 0.11401425178147269 AbsIntAvgWeakeningVarsNumRemoved, 7.465558194774347 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.8s AutomataMinimizationTime, 6 MinimizatonAttempts, 2128 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 1305 NumberOfCodeBlocks, 1305 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1484 ConstructedInterpolants, 2 QuantifiedInterpolants, 818148 SizeOfPredicates, 3 NumberOfNonLiveVariables, 359 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 378/549 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown