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_label22_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 08:50:22,819 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 08:50:22,822 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 08:50:22,839 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 08:50:22,839 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 08:50:22,840 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 08:50:22,842 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 08:50:22,845 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 08:50:22,848 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 08:50:22,849 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 08:50:22,849 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 08:50:22,851 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 08:50:22,852 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 08:50:22,854 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 08:50:22,855 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 08:50:22,863 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 08:50:22,864 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 08:50:22,868 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 08:50:22,871 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 08:50:22,874 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 08:50:22,876 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 08:50:22,877 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 08:50:22,881 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 08:50:22,881 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 08:50:22,881 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 08:50:22,883 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 08:50:22,885 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 08:50:22,887 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 08:50:22,887 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 08:50:22,889 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 08:50:22,890 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 08:50:22,890 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 08:50:22,890 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 08:50:22,892 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 08:50:22,893 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 08:50:22,893 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 08:50:22,894 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 08:50:22,921 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 08:50:22,922 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 08:50:22,926 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 08:50:22,926 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 08:50:22,927 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 08:50:22,927 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 08:50:22,927 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-07 08:50:22,927 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 08:50:22,928 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 08:50:22,928 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 08:50:22,928 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 08:50:22,929 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 08:50:22,929 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 08:50:22,929 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 08:50:22,930 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 08:50:22,930 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 08:50:22,930 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 08:50:22,930 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 08:50:22,931 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 08:50:22,931 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 08:50:22,931 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 08:50:22,931 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 08:50:22,931 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 08:50:22,932 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 08:50:22,932 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 08:50:22,932 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 08:50:22,932 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 08:50:22,932 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 08:50:22,934 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 08:50:22,934 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 08:50:22,934 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 08:50:22,935 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 08:50:22,935 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 08:50:22,935 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 08:50:22,935 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 08:50:22,935 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 08:50:22,994 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 08:50:23,012 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 08:50:23,016 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 08:50:23,018 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 08:50:23,018 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 08:50:23,019 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label22_true-unreach-call.c [2018-11-07 08:50:23,096 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bded5ce10/29b0999da3b742e78c2a02e2bd6c20b4/FLAGe37d90212 [2018-11-07 08:50:23,836 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 08:50:23,837 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label22_true-unreach-call.c [2018-11-07 08:50:23,884 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bded5ce10/29b0999da3b742e78c2a02e2bd6c20b4/FLAGe37d90212 [2018-11-07 08:50:23,900 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bded5ce10/29b0999da3b742e78c2a02e2bd6c20b4 [2018-11-07 08:50:23,912 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 08:50:23,914 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 08:50:23,915 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 08:50:23,915 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 08:50:23,920 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 08:50:23,921 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:50:23" (1/1) ... [2018-11-07 08:50:23,925 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@596e7265 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:50:23, skipping insertion in model container [2018-11-07 08:50:23,925 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:50:23" (1/1) ... [2018-11-07 08:50:23,936 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 08:50:24,127 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 08:50:25,799 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 08:50:25,804 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 08:50:26,475 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 08:50:26,510 INFO L193 MainTranslator]: Completed translation [2018-11-07 08:50:26,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:50:26 WrapperNode [2018-11-07 08:50:26,511 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 08:50:26,513 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 08:50:26,513 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 08:50:26,513 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 08:50:26,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:50:26" (1/1) ... [2018-11-07 08:50:26,916 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:50:26" (1/1) ... [2018-11-07 08:50:26,927 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 08:50:26,928 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 08:50:26,928 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 08:50:26,928 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 08:50:26,939 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:50:26" (1/1) ... [2018-11-07 08:50:26,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:50:26" (1/1) ... [2018-11-07 08:50:26,960 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:50:26" (1/1) ... [2018-11-07 08:50:26,960 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:50:26" (1/1) ... [2018-11-07 08:50:27,102 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:50:26" (1/1) ... [2018-11-07 08:50:27,144 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:50:26" (1/1) ... [2018-11-07 08:50:27,178 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:50:26" (1/1) ... [2018-11-07 08:50:27,213 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 08:50:27,214 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 08:50:27,214 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 08:50:27,214 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 08:50:27,215 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:50:26" (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 08:50:27,283 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 08:50:27,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 08:50:27,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 08:50:27,283 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-07 08:50:27,284 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-07 08:50:27,284 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 08:50:27,284 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 08:50:27,284 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 08:50:27,284 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 08:50:27,285 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 08:50:27,285 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 08:50:27,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 08:50:27,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 08:50:27,286 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 08:50:27,286 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 08:50:37,323 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 08:50:37,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:50:37 BoogieIcfgContainer [2018-11-07 08:50:37,324 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 08:50:37,325 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 08:50:37,325 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 08:50:37,328 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 08:50:37,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:50:23" (1/3) ... [2018-11-07 08:50:37,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57690941 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:50:37, skipping insertion in model container [2018-11-07 08:50:37,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:50:26" (2/3) ... [2018-11-07 08:50:37,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57690941 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:50:37, skipping insertion in model container [2018-11-07 08:50:37,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:50:37" (3/3) ... [2018-11-07 08:50:37,332 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label22_true-unreach-call.c [2018-11-07 08:50:37,344 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 08:50:37,358 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 08:50:37,375 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 08:50:37,433 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 08:50:37,433 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 08:50:37,433 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 08:50:37,433 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 08:50:37,433 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 08:50:37,433 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 08:50:37,434 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 08:50:37,434 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 08:50:37,495 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-11-07 08:50:37,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-07 08:50:37,506 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:50:37,507 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] [2018-11-07 08:50:37,511 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:50:37,517 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:50:37,518 INFO L82 PathProgramCache]: Analyzing trace with hash -380938253, now seen corresponding path program 1 times [2018-11-07 08:50:37,521 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:50:37,585 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:50:37,586 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:50:37,586 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:50:37,586 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:50:37,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:50:38,053 WARN L179 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-11-07 08:50:38,065 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 08:50:38,071 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:50:38,074 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 08:50:38,075 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:50:38,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 08:50:38,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 08:50:38,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 08:50:38,105 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 4 states. [2018-11-07 08:50:51,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:50:51,664 INFO L93 Difference]: Finished difference Result 4105 states and 7669 transitions. [2018-11-07 08:50:51,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 08:50:51,667 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 39 [2018-11-07 08:50:51,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:50:51,719 INFO L225 Difference]: With dead ends: 4105 [2018-11-07 08:50:51,721 INFO L226 Difference]: Without dead ends: 2979 [2018-11-07 08:50:51,739 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 08:50:51,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2979 states. [2018-11-07 08:50:51,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2979 to 2849. [2018-11-07 08:50:51,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2849 states. [2018-11-07 08:50:51,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2849 states to 2849 states and 5075 transitions. [2018-11-07 08:50:51,964 INFO L78 Accepts]: Start accepts. Automaton has 2849 states and 5075 transitions. Word has length 39 [2018-11-07 08:50:51,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:50:51,965 INFO L480 AbstractCegarLoop]: Abstraction has 2849 states and 5075 transitions. [2018-11-07 08:50:51,965 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 08:50:51,965 INFO L276 IsEmpty]: Start isEmpty. Operand 2849 states and 5075 transitions. [2018-11-07 08:50:51,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2018-11-07 08:50:51,978 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:50:51,979 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:50:51,979 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:50:51,979 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:50:51,979 INFO L82 PathProgramCache]: Analyzing trace with hash 1766897295, now seen corresponding path program 1 times [2018-11-07 08:50:51,981 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:50:51,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:50:51,982 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:50:51,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:50:51,982 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:50:52,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:50:52,524 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:50:52,524 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:50:52,524 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 08:50:52,525 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:50:52,527 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 08:50:52,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 08:50:52,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 08:50:52,528 INFO L87 Difference]: Start difference. First operand 2849 states and 5075 transitions. Second operand 6 states. [2018-11-07 08:51:08,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:51:08,236 INFO L93 Difference]: Finished difference Result 10635 states and 19580 transitions. [2018-11-07 08:51:08,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 08:51:08,236 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 110 [2018-11-07 08:51:08,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:51:08,285 INFO L225 Difference]: With dead ends: 10635 [2018-11-07 08:51:08,286 INFO L226 Difference]: Without dead ends: 7792 [2018-11-07 08:51:08,306 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 08:51:08,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7792 states. [2018-11-07 08:51:08,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7792 to 7729. [2018-11-07 08:51:08,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7729 states. [2018-11-07 08:51:08,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7729 states to 7729 states and 12373 transitions. [2018-11-07 08:51:08,511 INFO L78 Accepts]: Start accepts. Automaton has 7729 states and 12373 transitions. Word has length 110 [2018-11-07 08:51:08,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:51:08,511 INFO L480 AbstractCegarLoop]: Abstraction has 7729 states and 12373 transitions. [2018-11-07 08:51:08,511 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 08:51:08,512 INFO L276 IsEmpty]: Start isEmpty. Operand 7729 states and 12373 transitions. [2018-11-07 08:51:08,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-11-07 08:51:08,515 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:51:08,516 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:51:08,516 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:51:08,516 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:51:08,517 INFO L82 PathProgramCache]: Analyzing trace with hash 1433958942, now seen corresponding path program 1 times [2018-11-07 08:51:08,517 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:51:08,518 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:51:08,518 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:51:08,518 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:51:08,518 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:51:08,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:51:08,731 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:51:08,731 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:51:08,732 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 08:51:08,732 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:51:08,732 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 08:51:08,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 08:51:08,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 08:51:08,733 INFO L87 Difference]: Start difference. First operand 7729 states and 12373 transitions. Second operand 6 states. [2018-11-07 08:51:19,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:51:19,779 INFO L93 Difference]: Finished difference Result 20526 states and 33998 transitions. [2018-11-07 08:51:19,783 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 08:51:19,783 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 113 [2018-11-07 08:51:19,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:51:19,859 INFO L225 Difference]: With dead ends: 20526 [2018-11-07 08:51:19,859 INFO L226 Difference]: Without dead ends: 12803 [2018-11-07 08:51:19,896 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 08:51:19,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12803 states. [2018-11-07 08:51:20,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12803 to 12725. [2018-11-07 08:51:20,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12725 states. [2018-11-07 08:51:20,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12725 states to 12725 states and 19312 transitions. [2018-11-07 08:51:20,229 INFO L78 Accepts]: Start accepts. Automaton has 12725 states and 19312 transitions. Word has length 113 [2018-11-07 08:51:20,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:51:20,230 INFO L480 AbstractCegarLoop]: Abstraction has 12725 states and 19312 transitions. [2018-11-07 08:51:20,230 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 08:51:20,230 INFO L276 IsEmpty]: Start isEmpty. Operand 12725 states and 19312 transitions. [2018-11-07 08:51:20,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-11-07 08:51:20,233 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:51:20,233 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:51:20,234 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:51:20,234 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:51:20,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1170956786, now seen corresponding path program 1 times [2018-11-07 08:51:20,234 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:51:20,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:51:20,236 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:51:20,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:51:20,236 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:51:20,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:51:20,561 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:51:20,561 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:51:20,561 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 08:51:20,562 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:51:20,562 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 08:51:20,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 08:51:20,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 08:51:20,563 INFO L87 Difference]: Start difference. First operand 12725 states and 19312 transitions. Second operand 5 states. [2018-11-07 08:51:30,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:51:30,321 INFO L93 Difference]: Finished difference Result 38404 states and 61833 transitions. [2018-11-07 08:51:30,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 08:51:30,327 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 123 [2018-11-07 08:51:30,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:51:30,468 INFO L225 Difference]: With dead ends: 38404 [2018-11-07 08:51:30,469 INFO L226 Difference]: Without dead ends: 25685 [2018-11-07 08:51:30,522 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 08:51:30,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25685 states. [2018-11-07 08:51:31,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25685 to 25392. [2018-11-07 08:51:31,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25392 states. [2018-11-07 08:51:31,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25392 states to 25392 states and 37263 transitions. [2018-11-07 08:51:31,220 INFO L78 Accepts]: Start accepts. Automaton has 25392 states and 37263 transitions. Word has length 123 [2018-11-07 08:51:31,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:51:31,221 INFO L480 AbstractCegarLoop]: Abstraction has 25392 states and 37263 transitions. [2018-11-07 08:51:31,221 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 08:51:31,221 INFO L276 IsEmpty]: Start isEmpty. Operand 25392 states and 37263 transitions. [2018-11-07 08:51:31,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-11-07 08:51:31,225 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:51:31,225 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:51:31,225 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:51:31,225 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:51:31,226 INFO L82 PathProgramCache]: Analyzing trace with hash 531830176, now seen corresponding path program 1 times [2018-11-07 08:51:31,226 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:51:31,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:51:31,227 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:51:31,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:51:31,227 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:51:31,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:51:31,567 WARN L179 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 08:51:32,165 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 15 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:51:32,166 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:51:32,166 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 08:51:32,167 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 141 with the following transitions: [2018-11-07 08:51:32,170 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], [2839], [2841], [2844], [2852], [2860], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-11-07 08:51:32,249 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 08:51:32,250 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 08:51:33,173 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 08:51:33,175 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 08:51:33,219 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:51:33,219 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 08:51:33,587 INFO L227 lantSequenceWeakener]: Weakened 137 states. On average, predicates are now at 71.29% of their original sizes. [2018-11-07 08:51:33,589 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 08:51:34,014 INFO L415 sIntCurrentIteration]: We unified 139 AI predicates to 139 [2018-11-07 08:51:34,014 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 08:51:34,016 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 08:51:34,016 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [7] total 15 [2018-11-07 08:51:34,016 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:51:34,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-07 08:51:34,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-07 08:51:34,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-07 08:51:34,017 INFO L87 Difference]: Start difference. First operand 25392 states and 37263 transitions. Second operand 10 states. Received shutdown request... [2018-11-07 08:54:21,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-07 08:54:21,743 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 08:54:21,749 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 08:54:21,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 08:54:21 BoogieIcfgContainer [2018-11-07 08:54:21,749 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 08:54:21,750 INFO L168 Benchmark]: Toolchain (without parser) took 237837.69 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 3.1 GB in the end (delta: -1.7 GB). Peak memory consumption was 813.9 MB. Max. memory is 7.1 GB. [2018-11-07 08:54:21,752 INFO L168 Benchmark]: CDTParser took 0.21 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 08:54:21,752 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2597.09 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 08:54:21,753 INFO L168 Benchmark]: Boogie Procedure Inliner took 414.58 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 796.9 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 67.6 MB. Max. memory is 7.1 GB. [2018-11-07 08:54:21,754 INFO L168 Benchmark]: Boogie Preprocessor took 285.69 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: 37.3 MB). Peak memory consumption was 37.3 MB. Max. memory is 7.1 GB. [2018-11-07 08:54:21,755 INFO L168 Benchmark]: RCFGBuilder took 10109.87 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 176.7 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: -13.4 MB). Peak memory consumption was 679.8 MB. Max. memory is 7.1 GB. [2018-11-07 08:54:21,756 INFO L168 Benchmark]: TraceAbstraction took 224424.98 ms. Allocated memory was 2.5 GB in the beginning and 4.1 GB in the end (delta: 1.6 GB). Free memory was 2.2 GB in the beginning and 3.1 GB in the end (delta: -924.9 MB). Peak memory consumption was 660.5 MB. Max. memory is 7.1 GB. [2018-11-07 08:54:21,761 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 2597.09 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 414.58 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 796.9 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 67.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 285.69 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: 37.3 MB). Peak memory consumption was 37.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10109.87 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 176.7 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: -13.4 MB). Peak memory consumption was 679.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 224424.98 ms. Allocated memory was 2.5 GB in the beginning and 4.1 GB in the end (delta: 1.6 GB). Free memory was 2.2 GB in the beginning and 3.1 GB in the end (delta: -924.9 MB). Peak memory consumption was 660.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 108]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 108). Cancelled while BasicCegarLoop was constructing difference of abstraction (25392states) and FLOYD_HOARE automaton (currently 12 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (13558 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 224.3s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 218.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2051 SDtfs, 15914 SDslu, 2877 SDs, 0 SdLazy, 26855 SolverSat, 7382 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 185.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 182 GetRequests, 142 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25392occurred 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, 0.9969730618667123 AbsIntWeakeningRatio, 0.1510791366906475 AbsIntAvgWeakeningVarsNumRemoved, 15.956834532374101 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 564 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 525 NumberOfCodeBlocks, 525 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 520 ConstructedInterpolants, 0 QuantifiedInterpolants, 288388 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 111/128 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown