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_label31_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-63daa26 [2018-11-12 18:57:07,877 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 18:57:07,880 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 18:57:07,897 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 18:57:07,897 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 18:57:07,899 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 18:57:07,900 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 18:57:07,902 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 18:57:07,904 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 18:57:07,904 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 18:57:07,905 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 18:57:07,906 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 18:57:07,907 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 18:57:07,908 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 18:57:07,909 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 18:57:07,911 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 18:57:07,912 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 18:57:07,914 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 18:57:07,917 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 18:57:07,918 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 18:57:07,922 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 18:57:07,923 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 18:57:07,927 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-12 18:57:07,927 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-12 18:57:07,927 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-12 18:57:07,928 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-12 18:57:07,930 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-12 18:57:07,931 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-12 18:57:07,931 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-12 18:57:07,935 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-12 18:57:07,936 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-12 18:57:07,936 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-12 18:57:07,938 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-12 18:57:07,938 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-12 18:57:07,939 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-12 18:57:07,940 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-12 18:57:07,940 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 [2018-11-12 18:57:07,970 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 18:57:07,970 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 18:57:07,971 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 18:57:07,971 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 18:57:07,971 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 18:57:07,971 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 18:57:07,975 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 18:57:07,975 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 18:57:07,975 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 18:57:07,975 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 18:57:07,976 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 18:57:07,976 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 18:57:07,976 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 18:57:07,977 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 18:57:07,977 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 18:57:07,977 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 18:57:07,978 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 18:57:07,978 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 18:57:07,978 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 18:57:07,978 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 18:57:07,978 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 18:57:07,980 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 18:57:07,980 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 18:57:07,981 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 18:57:07,981 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 18:57:07,981 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 18:57:07,981 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 18:57:07,982 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 18:57:07,982 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 18:57:07,982 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 18:57:07,982 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 18:57:07,982 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 18:57:07,982 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 18:57:07,983 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 18:57:07,983 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 18:57:08,040 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 18:57:08,059 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 18:57:08,064 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 18:57:08,065 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 18:57:08,066 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 18:57:08,067 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label31_true-unreach-call.c [2018-11-12 18:57:08,130 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e62b6fe8a/40f73008fbb0474bba775981e9c90b1c/FLAG45ac39426 [2018-11-12 18:57:08,973 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 18:57:08,974 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label31_true-unreach-call.c [2018-11-12 18:57:09,008 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e62b6fe8a/40f73008fbb0474bba775981e9c90b1c/FLAG45ac39426 [2018-11-12 18:57:09,026 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e62b6fe8a/40f73008fbb0474bba775981e9c90b1c [2018-11-12 18:57:09,038 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 18:57:09,040 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 18:57:09,041 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 18:57:09,041 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 18:57:09,045 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 18:57:09,046 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:57:09" (1/1) ... [2018-11-12 18:57:09,049 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7008f5dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:57:09, skipping insertion in model container [2018-11-12 18:57:09,050 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:57:09" (1/1) ... [2018-11-12 18:57:09,061 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 18:57:09,236 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 18:57:10,755 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 18:57:10,760 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 18:57:11,532 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 18:57:11,570 INFO L193 MainTranslator]: Completed translation [2018-11-12 18:57:11,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:57:11 WrapperNode [2018-11-12 18:57:11,571 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 18:57:11,572 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 18:57:11,572 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 18:57:11,572 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 18:57:11,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:57:11" (1/1) ... [2018-11-12 18:57:11,949 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:57:11" (1/1) ... [2018-11-12 18:57:11,961 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 18:57:11,961 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 18:57:11,961 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 18:57:11,961 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 18:57:11,973 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:57:11" (1/1) ... [2018-11-12 18:57:11,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:57:11" (1/1) ... [2018-11-12 18:57:12,007 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:57:11" (1/1) ... [2018-11-12 18:57:12,007 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:57:11" (1/1) ... [2018-11-12 18:57:12,106 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:57:11" (1/1) ... [2018-11-12 18:57:12,151 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:57:11" (1/1) ... [2018-11-12 18:57:12,183 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:57:11" (1/1) ... [2018-11-12 18:57:12,215 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 18:57:12,216 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 18:57:12,216 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 18:57:12,216 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 18:57:12,217 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:57:11" (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 [2018-11-12 18:57:12,290 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-12 18:57:12,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 18:57:12,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 18:57:12,290 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-12 18:57:12,291 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-12 18:57:12,291 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-12 18:57:12,291 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-12 18:57:12,292 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-12 18:57:12,292 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-12 18:57:12,292 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-12 18:57:12,292 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-12 18:57:12,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 18:57:12,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 18:57:12,294 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 18:57:12,294 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 18:57:23,352 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 18:57:23,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:57:23 BoogieIcfgContainer [2018-11-12 18:57:23,354 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 18:57:23,355 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 18:57:23,355 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 18:57:23,358 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 18:57:23,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 06:57:09" (1/3) ... [2018-11-12 18:57:23,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb5a279 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:57:23, skipping insertion in model container [2018-11-12 18:57:23,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:57:11" (2/3) ... [2018-11-12 18:57:23,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb5a279 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:57:23, skipping insertion in model container [2018-11-12 18:57:23,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:57:23" (3/3) ... [2018-11-12 18:57:23,362 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label31_true-unreach-call.c [2018-11-12 18:57:23,373 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 18:57:23,385 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 18:57:23,403 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 18:57:23,457 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 18:57:23,457 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 18:57:23,458 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 18:57:23,458 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 18:57:23,458 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 18:57:23,458 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 18:57:23,458 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 18:57:23,458 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 18:57:23,517 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-11-12 18:57:23,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-12 18:57:23,526 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 18:57:23,528 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] [2018-11-12 18:57:23,530 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 18:57:23,536 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:57:23,536 INFO L82 PathProgramCache]: Analyzing trace with hash 1693652115, now seen corresponding path program 1 times [2018-11-12 18:57:23,538 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 18:57:23,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:57:23,596 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 18:57:23,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:57:23,596 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 18:57:23,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 18:57:24,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 18:57:24,063 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 18:57:24,063 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-12 18:57:24,064 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 18:57:24,070 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-12 18:57:24,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-12 18:57:24,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 18:57:24,092 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-11-12 18:57:33,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 18:57:33,122 INFO L93 Difference]: Finished difference Result 3093 states and 5715 transitions. [2018-11-12 18:57:33,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-12 18:57:33,124 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-11-12 18:57:33,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 18:57:33,160 INFO L225 Difference]: With dead ends: 3093 [2018-11-12 18:57:33,160 INFO L226 Difference]: Without dead ends: 1971 [2018-11-12 18:57:33,172 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 18:57:33,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1971 states. [2018-11-12 18:57:33,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1971 to 1957. [2018-11-12 18:57:33,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1957 states. [2018-11-12 18:57:33,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1957 states to 1957 states and 3535 transitions. [2018-11-12 18:57:33,357 INFO L78 Accepts]: Start accepts. Automaton has 1957 states and 3535 transitions. Word has length 47 [2018-11-12 18:57:33,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 18:57:33,358 INFO L480 AbstractCegarLoop]: Abstraction has 1957 states and 3535 transitions. [2018-11-12 18:57:33,358 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-12 18:57:33,359 INFO L276 IsEmpty]: Start isEmpty. Operand 1957 states and 3535 transitions. [2018-11-12 18:57:33,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-11-12 18:57:33,371 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 18:57:33,372 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 18:57:33,372 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 18:57:33,373 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:57:33,373 INFO L82 PathProgramCache]: Analyzing trace with hash 459936076, now seen corresponding path program 1 times [2018-11-12 18:57:33,373 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 18:57:33,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:57:33,375 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 18:57:33,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:57:33,375 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 18:57:33,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 18:57:34,050 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 18:57:34,050 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 18:57:34,050 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 18:57:34,051 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 18:57:34,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 18:57:34,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 18:57:34,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 18:57:34,054 INFO L87 Difference]: Start difference. First operand 1957 states and 3535 transitions. Second operand 6 states. [2018-11-12 18:57:45,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 18:57:45,358 INFO L93 Difference]: Finished difference Result 5627 states and 10356 transitions. [2018-11-12 18:57:45,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 18:57:45,362 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 130 [2018-11-12 18:57:45,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 18:57:45,391 INFO L225 Difference]: With dead ends: 5627 [2018-11-12 18:57:45,391 INFO L226 Difference]: Without dead ends: 3676 [2018-11-12 18:57:45,399 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 [2018-11-12 18:57:45,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3676 states. [2018-11-12 18:57:45,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3676 to 3643. [2018-11-12 18:57:45,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3643 states. [2018-11-12 18:57:45,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3643 states to 3643 states and 5987 transitions. [2018-11-12 18:57:45,507 INFO L78 Accepts]: Start accepts. Automaton has 3643 states and 5987 transitions. Word has length 130 [2018-11-12 18:57:45,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 18:57:45,508 INFO L480 AbstractCegarLoop]: Abstraction has 3643 states and 5987 transitions. [2018-11-12 18:57:45,508 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 18:57:45,508 INFO L276 IsEmpty]: Start isEmpty. Operand 3643 states and 5987 transitions. [2018-11-12 18:57:45,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-11-12 18:57:45,514 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 18:57:45,514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 18:57:45,515 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 18:57:45,515 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:57:45,515 INFO L82 PathProgramCache]: Analyzing trace with hash -923575044, now seen corresponding path program 1 times [2018-11-12 18:57:45,515 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 18:57:45,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:57:45,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 18:57:45,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:57:45,525 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 18:57:45,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 18:57:45,814 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 18:57:45,815 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 18:57:45,815 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-12 18:57:45,815 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 18:57:45,816 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-12 18:57:45,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-12 18:57:45,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-12 18:57:45,817 INFO L87 Difference]: Start difference. First operand 3643 states and 5987 transitions. Second operand 5 states. [2018-11-12 18:57:55,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 18:57:55,527 INFO L93 Difference]: Finished difference Result 10947 states and 18497 transitions. [2018-11-12 18:57:55,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-12 18:57:55,528 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 146 [2018-11-12 18:57:55,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 18:57:55,574 INFO L225 Difference]: With dead ends: 10947 [2018-11-12 18:57:55,575 INFO L226 Difference]: Without dead ends: 7310 [2018-11-12 18:57:55,589 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-12 18:57:55,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7310 states. [2018-11-12 18:57:55,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7310 to 7122. [2018-11-12 18:57:55,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7122 states. [2018-11-12 18:57:55,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7122 states to 7122 states and 10912 transitions. [2018-11-12 18:57:55,793 INFO L78 Accepts]: Start accepts. Automaton has 7122 states and 10912 transitions. Word has length 146 [2018-11-12 18:57:55,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 18:57:55,794 INFO L480 AbstractCegarLoop]: Abstraction has 7122 states and 10912 transitions. [2018-11-12 18:57:55,794 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-12 18:57:55,794 INFO L276 IsEmpty]: Start isEmpty. Operand 7122 states and 10912 transitions. [2018-11-12 18:57:55,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2018-11-12 18:57:55,798 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 18:57:55,804 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 18:57:55,804 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 18:57:55,804 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:57:55,808 INFO L82 PathProgramCache]: Analyzing trace with hash -616934008, now seen corresponding path program 1 times [2018-11-12 18:57:55,808 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 18:57:55,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:57:55,809 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 18:57:55,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:57:55,809 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 18:57:55,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 18:57:56,204 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 18:57:56,204 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 18:57:56,204 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 18:57:56,204 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 18:57:56,205 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 18:57:56,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 18:57:56,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 18:57:56,206 INFO L87 Difference]: Start difference. First operand 7122 states and 10912 transitions. Second operand 6 states. [2018-11-12 18:58:06,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 18:58:06,483 INFO L93 Difference]: Finished difference Result 19740 states and 31225 transitions. [2018-11-12 18:58:06,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 18:58:06,494 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 183 [2018-11-12 18:58:06,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 18:58:06,562 INFO L225 Difference]: With dead ends: 19740 [2018-11-12 18:58:06,562 INFO L226 Difference]: Without dead ends: 12624 [2018-11-12 18:58:06,600 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 [2018-11-12 18:58:06,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12624 states. [2018-11-12 18:58:06,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12624 to 12422. [2018-11-12 18:58:06,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12422 states. [2018-11-12 18:58:06,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12422 states to 12422 states and 17996 transitions. [2018-11-12 18:58:06,950 INFO L78 Accepts]: Start accepts. Automaton has 12422 states and 17996 transitions. Word has length 183 [2018-11-12 18:58:06,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 18:58:06,950 INFO L480 AbstractCegarLoop]: Abstraction has 12422 states and 17996 transitions. [2018-11-12 18:58:06,950 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 18:58:06,951 INFO L276 IsEmpty]: Start isEmpty. Operand 12422 states and 17996 transitions. [2018-11-12 18:58:06,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2018-11-12 18:58:06,959 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 18:58:06,960 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 18:58:06,960 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 18:58:06,960 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:58:06,960 INFO L82 PathProgramCache]: Analyzing trace with hash -566668791, now seen corresponding path program 1 times [2018-11-12 18:58:06,961 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 18:58:06,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:58:06,962 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 18:58:06,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:58:06,962 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 18:58:07,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 18:58:07,555 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 18:58:07,556 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 18:58:07,556 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 18:58:07,556 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 18:58:07,557 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 18:58:07,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 18:58:07,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-12 18:58:07,558 INFO L87 Difference]: Start difference. First operand 12422 states and 17996 transitions. Second operand 6 states. [2018-11-12 18:58:21,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 18:58:21,534 INFO L93 Difference]: Finished difference Result 42968 states and 69581 transitions. [2018-11-12 18:58:21,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-12 18:58:21,535 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 205 [2018-11-12 18:58:21,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 18:58:21,697 INFO L225 Difference]: With dead ends: 42968 [2018-11-12 18:58:21,698 INFO L226 Difference]: Without dead ends: 30552 [2018-11-12 18:58:21,769 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-12 18:58:21,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30552 states. [2018-11-12 18:58:22,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30552 to 30314. [2018-11-12 18:58:22,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30314 states. [2018-11-12 18:58:23,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30314 states to 30314 states and 44017 transitions. [2018-11-12 18:58:23,165 INFO L78 Accepts]: Start accepts. Automaton has 30314 states and 44017 transitions. Word has length 205 [2018-11-12 18:58:23,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 18:58:23,166 INFO L480 AbstractCegarLoop]: Abstraction has 30314 states and 44017 transitions. [2018-11-12 18:58:23,166 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 18:58:23,166 INFO L276 IsEmpty]: Start isEmpty. Operand 30314 states and 44017 transitions. [2018-11-12 18:58:23,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2018-11-12 18:58:23,176 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 18:58:23,176 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 18:58:23,177 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 18:58:23,178 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:58:23,178 INFO L82 PathProgramCache]: Analyzing trace with hash -45725775, now seen corresponding path program 1 times [2018-11-12 18:58:23,178 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 18:58:23,179 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:58:23,180 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 18:58:23,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:58:23,180 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 18:58:23,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 18:58:23,503 WARN L179 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 18:58:23,966 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 18:58:23,967 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 18:58:23,967 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 18:58:23,967 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 18:58:23,968 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 18:58:23,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 18:58:23,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 18:58:23,969 INFO L87 Difference]: Start difference. First operand 30314 states and 44017 transitions. Second operand 6 states. [2018-11-12 18:58:34,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 18:58:34,952 INFO L93 Difference]: Finished difference Result 73860 states and 116109 transitions. [2018-11-12 18:58:34,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 18:58:34,953 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 228 [2018-11-12 18:58:34,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 18:58:35,163 INFO L225 Difference]: With dead ends: 73860 [2018-11-12 18:58:35,164 INFO L226 Difference]: Without dead ends: 43552 [2018-11-12 18:58:35,292 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-12 18:58:35,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43552 states. [2018-11-12 18:58:36,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43552 to 43246. [2018-11-12 18:58:36,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43246 states. [2018-11-12 18:58:36,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43246 states to 43246 states and 61390 transitions. [2018-11-12 18:58:36,403 INFO L78 Accepts]: Start accepts. Automaton has 43246 states and 61390 transitions. Word has length 228 [2018-11-12 18:58:36,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 18:58:36,405 INFO L480 AbstractCegarLoop]: Abstraction has 43246 states and 61390 transitions. [2018-11-12 18:58:36,406 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 18:58:36,406 INFO L276 IsEmpty]: Start isEmpty. Operand 43246 states and 61390 transitions. [2018-11-12 18:58:36,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2018-11-12 18:58:36,425 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 18:58:36,425 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-12 18:58:36,426 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 18:58:36,426 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:58:36,426 INFO L82 PathProgramCache]: Analyzing trace with hash -835857679, now seen corresponding path program 1 times [2018-11-12 18:58:36,426 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 18:58:36,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:58:36,427 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 18:58:36,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:58:36,428 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 18:58:36,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 18:58:36,810 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 80 proven. 94 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-12 18:58:36,810 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 18:58:36,810 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 18:58:36,811 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 253 with the following transitions: [2018-11-12 18:58:36,814 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], [2903], [2905], [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], [3257], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3285], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-11-12 18:58:36,878 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 18:58:36,879 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 18:58:37,871 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 18:58:37,876 INFO L272 AbstractInterpreter]: Visited 111 different actions 111 times. Never merged. Never widened. Performed 2454 root evaluator evaluations with a maximum evaluation depth of 6. Performed 2454 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Never found a fixpoint. Largest state had 26 variables. [2018-11-12 18:58:37,920 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:58:37,920 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 18:58:39,039 INFO L227 lantSequenceWeakener]: Weakened 230 states. On average, predicates are now at 71.45% of their original sizes. [2018-11-12 18:58:39,039 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 18:58:39,932 INFO L415 sIntCurrentIteration]: We unified 251 AI predicates to 251 [2018-11-12 18:58:39,932 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 18:58:39,933 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 18:58:39,934 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 14 [2018-11-12 18:58:39,934 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 18:58:39,937 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-12 18:58:39,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-12 18:58:39,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-11-12 18:58:39,938 INFO L87 Difference]: Start difference. First operand 43246 states and 61390 transitions. Second operand 11 states. [2018-11-12 18:58:52,934 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 18:59:37,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 18:59:37,204 INFO L93 Difference]: Finished difference Result 87295 states and 123690 transitions. [2018-11-12 18:59:37,204 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-12 18:59:37,204 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 252 [2018-11-12 18:59:37,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 18:59:37,346 INFO L225 Difference]: With dead ends: 87295 [2018-11-12 18:59:37,346 INFO L226 Difference]: Without dead ends: 44055 [2018-11-12 18:59:37,457 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 256 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2018-11-12 18:59:37,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44055 states. [2018-11-12 18:59:39,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44055 to 44050. [2018-11-12 18:59:39,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44050 states. [2018-11-12 18:59:39,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44050 states to 44050 states and 62205 transitions. [2018-11-12 18:59:39,519 INFO L78 Accepts]: Start accepts. Automaton has 44050 states and 62205 transitions. Word has length 252 [2018-11-12 18:59:39,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 18:59:39,520 INFO L480 AbstractCegarLoop]: Abstraction has 44050 states and 62205 transitions. [2018-11-12 18:59:39,520 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-12 18:59:39,520 INFO L276 IsEmpty]: Start isEmpty. Operand 44050 states and 62205 transitions. [2018-11-12 18:59:39,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2018-11-12 18:59:39,540 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 18:59:39,540 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 18:59:39,541 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 18:59:39,541 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:59:39,541 INFO L82 PathProgramCache]: Analyzing trace with hash -1165329692, now seen corresponding path program 1 times [2018-11-12 18:59:39,541 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 18:59:39,542 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:59:39,543 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 18:59:39,543 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:59:39,543 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 18:59:39,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 18:59:39,989 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 319 proven. 2 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2018-11-12 18:59:39,990 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 18:59:39,990 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 18:59:39,990 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 354 with the following transitions: [2018-11-12 18:59:39,991 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], [2903], [2905], [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], [3257], [3258], [3262], [3265], [3266], [3270], [3274], [3278], [3282], [3285], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-11-12 18:59:39,996 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 18:59:39,996 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 18:59:40,401 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 18:59:41,309 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 18:59:41,309 INFO L272 AbstractInterpreter]: Visited 115 different actions 562 times. Merged at 7 different actions 31 times. Widened at 1 different actions 1 times. Performed 9797 root evaluator evaluations with a maximum evaluation depth of 6. Performed 9797 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 5 fixpoints after 2 different actions. Largest state had 26 variables. [2018-11-12 18:59:41,349 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:59:41,349 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 18:59:42,064 INFO L227 lantSequenceWeakener]: Weakened 350 states. On average, predicates are now at 71.12% of their original sizes. [2018-11-12 18:59:42,065 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 18:59:43,722 INFO L415 sIntCurrentIteration]: We unified 352 AI predicates to 352 [2018-11-12 18:59:43,723 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 18:59:43,723 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 18:59:43,723 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-11-12 18:59:43,724 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 18:59:43,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-12 18:59:43,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-12 18:59:43,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-11-12 18:59:43,725 INFO L87 Difference]: Start difference. First operand 44050 states and 62205 transitions. Second operand 10 states. Received shutdown request... [2018-11-12 19:00:34,222 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-12 19:00:34,222 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-12 19:00:34,227 WARN L205 ceAbstractionStarter]: Timeout [2018-11-12 19:00:34,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 07:00:34 BoogieIcfgContainer [2018-11-12 19:00:34,228 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-12 19:00:34,229 INFO L168 Benchmark]: Toolchain (without parser) took 205190.44 ms. Allocated memory was 1.5 GB in the beginning and 4.4 GB in the end (delta: 2.8 GB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -122.0 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. [2018-11-12 19:00:34,230 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-12 19:00:34,231 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2530.37 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 256.3 MB). Peak memory consumption was 256.3 MB. Max. memory is 7.1 GB. [2018-11-12 19:00:34,231 INFO L168 Benchmark]: Boogie Procedure Inliner took 389.05 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 812.1 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 67.5 MB. Max. memory is 7.1 GB. [2018-11-12 19:00:34,232 INFO L168 Benchmark]: Boogie Preprocessor took 254.10 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 36.6 MB). Peak memory consumption was 36.6 MB. Max. memory is 7.1 GB. [2018-11-12 19:00:34,233 INFO L168 Benchmark]: RCFGBuilder took 11138.69 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 153.1 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 31.9 MB). Peak memory consumption was 657.3 MB. Max. memory is 7.1 GB. [2018-11-12 19:00:34,234 INFO L168 Benchmark]: TraceAbstraction took 190873.05 ms. Allocated memory was 2.5 GB in the beginning and 4.4 GB in the end (delta: 1.9 GB). Free memory was 2.2 GB in the beginning and 1.5 GB in the end (delta: 667.2 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-11-12 19:00:34,240 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2530.37 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 256.3 MB). Peak memory consumption was 256.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 389.05 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 812.1 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 67.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 254.10 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 36.6 MB). Peak memory consumption was 36.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11138.69 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 153.1 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 31.9 MB). Peak memory consumption was 657.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 190873.05 ms. Allocated memory was 2.5 GB in the beginning and 4.4 GB in the end (delta: 1.9 GB). Free memory was 2.2 GB in the beginning and 1.5 GB in the end (delta: 667.2 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 132]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 132). Cancelled while BasicCegarLoop was constructing difference of abstraction (44050states) and FLOYD_HOARE automaton (currently 15 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (34692 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 190.7s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 174.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4545 SDtfs, 26934 SDslu, 4152 SDs, 0 SdLazy, 42878 SolverSat, 9114 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 94.2s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 671 GetRequests, 601 SyntacticMatches, 5 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 5.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44050occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.4s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9976125957826151 AbsIntWeakeningRatio, 0.09950248756218906 AbsIntAvgWeakeningVarsNumRemoved, 14.033167495854062 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 5.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 986 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 1544 NumberOfCodeBlocks, 1544 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1536 ConstructedInterpolants, 0 QuantifiedInterpolants, 1301275 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 702/798 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown