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 --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label44_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-14 18:25:15,052 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-14 18:25:15,054 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-14 18:25:15,072 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-14 18:25:15,072 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-14 18:25:15,073 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-14 18:25:15,075 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-14 18:25:15,078 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-14 18:25:15,079 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-14 18:25:15,080 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-14 18:25:15,081 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-14 18:25:15,081 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-14 18:25:15,084 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-14 18:25:15,085 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-14 18:25:15,087 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-14 18:25:15,090 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-14 18:25:15,091 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-14 18:25:15,101 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-14 18:25:15,103 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-14 18:25:15,108 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-14 18:25:15,109 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-14 18:25:15,110 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-14 18:25:15,116 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-14 18:25:15,116 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-14 18:25:15,116 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-14 18:25:15,117 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-14 18:25:15,118 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-14 18:25:15,119 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-14 18:25:15,120 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-14 18:25:15,121 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-14 18:25:15,121 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-14 18:25:15,122 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-14 18:25:15,122 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-14 18:25:15,122 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-14 18:25:15,123 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-14 18:25:15,124 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-14 18:25:15,124 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-09-14 18:25:15,150 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-14 18:25:15,151 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-14 18:25:15,152 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-14 18:25:15,152 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-14 18:25:15,152 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-14 18:25:15,156 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-14 18:25:15,156 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-14 18:25:15,156 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-14 18:25:15,156 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-14 18:25:15,157 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-14 18:25:15,157 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-14 18:25:15,158 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-14 18:25:15,158 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-14 18:25:15,159 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-14 18:25:15,159 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-14 18:25:15,159 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-14 18:25:15,159 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-14 18:25:15,159 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-14 18:25:15,160 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-14 18:25:15,160 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-14 18:25:15,160 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-14 18:25:15,160 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-14 18:25:15,162 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-14 18:25:15,162 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-14 18:25:15,162 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-14 18:25:15,163 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-14 18:25:15,163 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-14 18:25:15,163 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-14 18:25:15,163 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-14 18:25:15,163 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-14 18:25:15,164 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-14 18:25:15,164 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-14 18:25:15,164 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-14 18:25:15,215 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-14 18:25:15,227 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-14 18:25:15,231 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-14 18:25:15,233 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-14 18:25:15,233 INFO L276 PluginConnector]: CDTParser initialized [2018-09-14 18:25:15,234 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label44_true-unreach-call.c [2018-09-14 18:25:15,613 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff1d755d5/c0d797e3206b4c598a88ef53db009853/FLAGdefacb82c [2018-09-14 18:25:16,226 INFO L277 CDTParser]: Found 1 translation units. [2018-09-14 18:25:16,227 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label44_true-unreach-call.c [2018-09-14 18:25:16,268 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff1d755d5/c0d797e3206b4c598a88ef53db009853/FLAGdefacb82c [2018-09-14 18:25:16,284 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff1d755d5/c0d797e3206b4c598a88ef53db009853 [2018-09-14 18:25:16,297 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-14 18:25:16,300 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-14 18:25:16,301 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-14 18:25:16,301 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-14 18:25:16,308 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-14 18:25:16,309 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 06:25:16" (1/1) ... [2018-09-14 18:25:16,313 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f625e0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:25:16, skipping insertion in model container [2018-09-14 18:25:16,313 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 06:25:16" (1/1) ... [2018-09-14 18:25:16,325 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-14 18:25:18,425 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 18:25:18,447 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-14 18:25:19,479 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 18:25:20,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:25:20 WrapperNode [2018-09-14 18:25:20,259 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-14 18:25:20,260 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-14 18:25:20,260 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-14 18:25:20,260 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-14 18:25:20,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:25:20" (1/1) ... [2018-09-14 18:25:20,443 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:25:20" (1/1) ... [2018-09-14 18:25:20,588 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-14 18:25:20,589 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-14 18:25:20,589 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-14 18:25:20,589 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-14 18:25:21,716 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:25:20" (1/1) ... [2018-09-14 18:25:21,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:25:20" (1/1) ... [2018-09-14 18:25:21,854 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:25:20" (1/1) ... [2018-09-14 18:25:21,855 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:25:20" (1/1) ... [2018-09-14 18:25:22,251 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:25:20" (1/1) ... [2018-09-14 18:25:22,319 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:25:20" (1/1) ... [2018-09-14 18:25:22,486 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:25:20" (1/1) ... [2018-09-14 18:25:22,773 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-14 18:25:22,773 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-14 18:25:22,773 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-14 18:25:22,774 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-14 18:25:22,775 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:25:20" (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 [2018-09-14 18:25:22,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-14 18:25:22,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-14 18:25:22,848 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-09-14 18:25:22,848 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-09-14 18:25:22,849 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-09-14 18:25:22,849 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-09-14 18:25:22,849 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-14 18:25:22,849 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-14 18:25:22,849 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-14 18:25:22,850 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-14 18:25:22,850 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-14 18:25:22,850 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-14 18:25:22,850 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-14 18:25:22,850 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-14 18:25:22,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-14 18:25:22,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-14 18:25:22,852 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-14 18:25:22,852 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-14 18:25:41,615 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-14 18:25:41,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 06:25:41 BoogieIcfgContainer [2018-09-14 18:25:41,616 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-14 18:25:41,616 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-14 18:25:41,617 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-14 18:25:41,620 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-14 18:25:41,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.09 06:25:16" (1/3) ... [2018-09-14 18:25:41,621 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c6bcc39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 06:25:41, skipping insertion in model container [2018-09-14 18:25:41,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:25:20" (2/3) ... [2018-09-14 18:25:41,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c6bcc39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 06:25:41, skipping insertion in model container [2018-09-14 18:25:41,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 06:25:41" (3/3) ... [2018-09-14 18:25:41,625 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label44_true-unreach-call.c [2018-09-14 18:25:41,636 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-14 18:25:41,648 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-14 18:25:41,727 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-14 18:25:41,727 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-14 18:25:41,728 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-14 18:25:41,728 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-14 18:25:41,728 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-14 18:25:41,728 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-14 18:25:41,728 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-14 18:25:41,728 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-14 18:25:41,728 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-14 18:25:41,802 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-09-14 18:25:41,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-09-14 18:25:41,811 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:25:41,812 INFO L376 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] [2018-09-14 18:25:41,813 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:25:41,819 INFO L82 PathProgramCache]: Analyzing trace with hash -6596318, now seen corresponding path program 1 times [2018-09-14 18:25:41,822 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:25:41,879 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:25:41,879 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:25:41,879 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:25:41,880 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:25:41,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:25:42,302 WARN L178 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 18:25:42,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 18:25:42,425 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 18:25:42,426 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-14 18:25:42,426 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:25:42,431 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 18:25:42,448 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 18:25:42,449 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 18:25:42,452 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-09-14 18:26:02,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 18:26:02,330 INFO L93 Difference]: Finished difference Result 4998 states and 9417 transitions. [2018-09-14 18:26:02,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 18:26:02,333 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 41 [2018-09-14 18:26:02,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 18:26:02,382 INFO L225 Difference]: With dead ends: 4998 [2018-09-14 18:26:02,382 INFO L226 Difference]: Without dead ends: 3218 [2018-09-14 18:26:02,398 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 18:26:02,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3218 states. [2018-09-14 18:26:02,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3218 to 3215. [2018-09-14 18:26:02,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3215 states. [2018-09-14 18:26:02,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3215 states to 3215 states and 5854 transitions. [2018-09-14 18:26:02,610 INFO L78 Accepts]: Start accepts. Automaton has 3215 states and 5854 transitions. Word has length 41 [2018-09-14 18:26:02,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 18:26:02,610 INFO L480 AbstractCegarLoop]: Abstraction has 3215 states and 5854 transitions. [2018-09-14 18:26:02,611 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 18:26:02,611 INFO L276 IsEmpty]: Start isEmpty. Operand 3215 states and 5854 transitions. [2018-09-14 18:26:02,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-09-14 18:26:02,617 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:26:02,618 INFO L376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 18:26:02,619 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:26:02,619 INFO L82 PathProgramCache]: Analyzing trace with hash -337507924, now seen corresponding path program 1 times [2018-09-14 18:26:02,619 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:26:02,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:26:02,621 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:26:02,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:26:02,621 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:26:02,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:26:03,040 WARN L178 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 18:26:03,445 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 18:26:03,446 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 18:26:03,446 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 18:26:03,446 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:26:03,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 18:26:03,448 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 18:26:03,449 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-14 18:26:03,449 INFO L87 Difference]: Start difference. First operand 3215 states and 5854 transitions. Second operand 6 states. [2018-09-14 18:26:34,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 18:26:34,797 INFO L93 Difference]: Finished difference Result 10735 states and 19755 transitions. [2018-09-14 18:26:34,798 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 18:26:34,798 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 113 [2018-09-14 18:26:34,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 18:26:34,840 INFO L225 Difference]: With dead ends: 10735 [2018-09-14 18:26:34,841 INFO L226 Difference]: Without dead ends: 7526 [2018-09-14 18:26:34,854 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-14 18:26:34,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7526 states. [2018-09-14 18:26:35,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7526 to 7489. [2018-09-14 18:26:35,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7489 states. [2018-09-14 18:26:35,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7489 states to 7489 states and 12437 transitions. [2018-09-14 18:26:35,030 INFO L78 Accepts]: Start accepts. Automaton has 7489 states and 12437 transitions. Word has length 113 [2018-09-14 18:26:35,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 18:26:35,031 INFO L480 AbstractCegarLoop]: Abstraction has 7489 states and 12437 transitions. [2018-09-14 18:26:35,031 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 18:26:35,031 INFO L276 IsEmpty]: Start isEmpty. Operand 7489 states and 12437 transitions. [2018-09-14 18:26:35,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-09-14 18:26:35,034 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:26:35,035 INFO L376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 18:26:35,035 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:26:35,036 INFO L82 PathProgramCache]: Analyzing trace with hash -392526345, now seen corresponding path program 1 times [2018-09-14 18:26:35,036 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:26:35,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:26:35,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:26:35,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:26:35,037 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:26:35,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:26:35,320 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 18:26:35,320 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 18:26:35,321 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 18:26:35,321 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:26:35,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 18:26:35,322 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 18:26:35,322 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-14 18:26:35,323 INFO L87 Difference]: Start difference. First operand 7489 states and 12437 transitions. Second operand 6 states. [2018-09-14 18:27:01,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 18:27:01,793 INFO L93 Difference]: Finished difference Result 23887 states and 39948 transitions. [2018-09-14 18:27:01,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 18:27:01,796 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 115 [2018-09-14 18:27:01,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 18:27:01,889 INFO L225 Difference]: With dead ends: 23887 [2018-09-14 18:27:01,894 INFO L226 Difference]: Without dead ends: 16404 [2018-09-14 18:27:01,927 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 [2018-09-14 18:27:01,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16404 states. [2018-09-14 18:27:02,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16404 to 16215. [2018-09-14 18:27:02,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16215 states. [2018-09-14 18:27:02,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16215 states to 16215 states and 25161 transitions. [2018-09-14 18:27:02,300 INFO L78 Accepts]: Start accepts. Automaton has 16215 states and 25161 transitions. Word has length 115 [2018-09-14 18:27:02,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 18:27:02,300 INFO L480 AbstractCegarLoop]: Abstraction has 16215 states and 25161 transitions. [2018-09-14 18:27:02,301 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 18:27:02,301 INFO L276 IsEmpty]: Start isEmpty. Operand 16215 states and 25161 transitions. [2018-09-14 18:27:02,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-09-14 18:27:02,310 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:27:02,310 INFO L376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 18:27:02,311 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:27:02,311 INFO L82 PathProgramCache]: Analyzing trace with hash 2002482604, now seen corresponding path program 1 times [2018-09-14 18:27:02,311 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:27:02,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:27:02,316 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:27:02,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:27:02,316 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:27:02,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:27:02,519 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 18:27:02,519 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 18:27:02,519 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-14 18:27:02,519 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:27:02,520 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 18:27:02,520 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 18:27:02,521 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-14 18:27:02,521 INFO L87 Difference]: Start difference. First operand 16215 states and 25161 transitions. Second operand 5 states. [2018-09-14 18:27:32,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 18:27:32,466 INFO L93 Difference]: Finished difference Result 48229 states and 76483 transitions. [2018-09-14 18:27:32,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 18:27:32,466 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 146 [2018-09-14 18:27:32,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 18:27:32,581 INFO L225 Difference]: With dead ends: 48229 [2018-09-14 18:27:32,582 INFO L226 Difference]: Without dead ends: 32020 [2018-09-14 18:27:32,643 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-14 18:27:32,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32020 states. [2018-09-14 18:27:33,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32020 to 31550. [2018-09-14 18:27:33,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31550 states. [2018-09-14 18:27:33,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31550 states to 31550 states and 44521 transitions. [2018-09-14 18:27:33,798 INFO L78 Accepts]: Start accepts. Automaton has 31550 states and 44521 transitions. Word has length 146 [2018-09-14 18:27:33,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 18:27:33,798 INFO L480 AbstractCegarLoop]: Abstraction has 31550 states and 44521 transitions. [2018-09-14 18:27:33,799 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 18:27:33,799 INFO L276 IsEmpty]: Start isEmpty. Operand 31550 states and 44521 transitions. [2018-09-14 18:27:33,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2018-09-14 18:27:33,808 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:27:33,808 INFO L376 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 18:27:33,812 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:27:33,813 INFO L82 PathProgramCache]: Analyzing trace with hash -995199702, now seen corresponding path program 1 times [2018-09-14 18:27:33,813 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:27:33,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:27:33,814 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:27:33,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:27:33,814 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:27:33,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:27:34,090 WARN L178 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 18:27:34,467 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 68 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 18:27:34,467 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 18:27:34,467 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 18:27:34,480 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:27:34,480 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 18:27:34,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:27:34,598 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 18:27:34,761 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-09-14 18:27:34,762 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 18:27:35,179 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-09-14 18:27:35,215 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-14 18:27:35,216 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 8 [2018-09-14 18:27:35,216 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:27:35,217 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 18:27:35,217 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 18:27:35,217 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-09-14 18:27:35,218 INFO L87 Difference]: Start difference. First operand 31550 states and 44521 transitions. Second operand 3 states. [2018-09-14 18:27:50,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 18:27:50,730 INFO L93 Difference]: Finished difference Result 74819 states and 108253 transitions. [2018-09-14 18:27:50,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 18:27:50,736 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 212 [2018-09-14 18:27:50,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 18:27:50,941 INFO L225 Difference]: With dead ends: 74819 [2018-09-14 18:27:50,941 INFO L226 Difference]: Without dead ends: 43275 [2018-09-14 18:27:51,021 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 423 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-09-14 18:27:51,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43275 states. [2018-09-14 18:27:51,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43275 to 43154. [2018-09-14 18:27:51,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43154 states. [2018-09-14 18:27:52,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43154 states to 43154 states and 58688 transitions. [2018-09-14 18:27:52,081 INFO L78 Accepts]: Start accepts. Automaton has 43154 states and 58688 transitions. Word has length 212 [2018-09-14 18:27:52,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 18:27:52,081 INFO L480 AbstractCegarLoop]: Abstraction has 43154 states and 58688 transitions. [2018-09-14 18:27:52,082 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 18:27:52,082 INFO L276 IsEmpty]: Start isEmpty. Operand 43154 states and 58688 transitions. [2018-09-14 18:27:52,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2018-09-14 18:27:52,102 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:27:52,102 INFO L376 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 18:27:52,103 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:27:52,103 INFO L82 PathProgramCache]: Analyzing trace with hash -1110482774, now seen corresponding path program 1 times [2018-09-14 18:27:52,103 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:27:52,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:27:52,104 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:27:52,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:27:52,104 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:27:52,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:27:52,889 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 68 proven. 109 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 18:27:52,889 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 18:27:52,890 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 18:27:52,905 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:27:52,905 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 18:27:52,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:27:53,005 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 18:27:53,643 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 145 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2018-09-14 18:27:53,643 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 18:27:53,719 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 68 proven. 2 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2018-09-14 18:27:53,740 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 18:27:53,740 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 3] total 8 [2018-09-14 18:27:53,740 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:27:53,741 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 18:27:53,741 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 18:27:53,741 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-09-14 18:27:53,742 INFO L87 Difference]: Start difference. First operand 43154 states and 58688 transitions. Second operand 3 states. [2018-09-14 18:28:06,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 18:28:06,989 INFO L93 Difference]: Finished difference Result 125845 states and 178232 transitions. [2018-09-14 18:28:06,992 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 18:28:06,993 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 279 [2018-09-14 18:28:06,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 18:28:07,299 INFO L225 Difference]: With dead ends: 125845 [2018-09-14 18:28:07,299 INFO L226 Difference]: Without dead ends: 82697 [2018-09-14 18:28:07,414 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 565 GetRequests, 559 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-09-14 18:28:07,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82697 states. [2018-09-14 18:28:09,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82697 to 82590. [2018-09-14 18:28:09,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82590 states. [2018-09-14 18:28:09,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82590 states to 82590 states and 114134 transitions. [2018-09-14 18:28:09,466 INFO L78 Accepts]: Start accepts. Automaton has 82590 states and 114134 transitions. Word has length 279 [2018-09-14 18:28:09,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 18:28:09,468 INFO L480 AbstractCegarLoop]: Abstraction has 82590 states and 114134 transitions. [2018-09-14 18:28:09,468 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 18:28:09,468 INFO L276 IsEmpty]: Start isEmpty. Operand 82590 states and 114134 transitions. [2018-09-14 18:28:09,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2018-09-14 18:28:09,496 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:28:09,497 INFO L376 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 18:28:09,497 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:28:09,497 INFO L82 PathProgramCache]: Analyzing trace with hash -1721751832, now seen corresponding path program 1 times [2018-09-14 18:28:09,497 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:28:09,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:28:09,498 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:28:09,499 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:28:09,499 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:28:09,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:28:10,236 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 68 proven. 109 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 18:28:10,236 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 18:28:10,237 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 18:28:10,251 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:28:10,252 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 18:28:10,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:28:10,335 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 18:28:10,522 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2018-09-14 18:28:10,522 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 18:28:10,815 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 68 proven. 109 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 18:28:10,847 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 18:28:10,847 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 5] total 12 [2018-09-14 18:28:10,847 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:28:10,848 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 18:28:10,848 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 18:28:10,848 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2018-09-14 18:28:10,848 INFO L87 Difference]: Start difference. First operand 82590 states and 114134 transitions. Second operand 5 states. [2018-09-14 18:28:40,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 18:28:40,206 INFO L93 Difference]: Finished difference Result 215996 states and 316389 transitions. [2018-09-14 18:28:40,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 18:28:40,207 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 279 [2018-09-14 18:28:40,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 18:28:40,712 INFO L225 Difference]: With dead ends: 215996 [2018-09-14 18:28:40,712 INFO L226 Difference]: Without dead ends: 133412 [2018-09-14 18:28:40,892 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 568 GetRequests, 554 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2018-09-14 18:28:40,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133412 states. [2018-09-14 18:28:44,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133412 to 132047. [2018-09-14 18:28:44,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132047 states. [2018-09-14 18:28:44,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132047 states to 132047 states and 184335 transitions. [2018-09-14 18:28:44,375 INFO L78 Accepts]: Start accepts. Automaton has 132047 states and 184335 transitions. Word has length 279 [2018-09-14 18:28:44,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 18:28:44,376 INFO L480 AbstractCegarLoop]: Abstraction has 132047 states and 184335 transitions. [2018-09-14 18:28:44,376 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 18:28:44,376 INFO L276 IsEmpty]: Start isEmpty. Operand 132047 states and 184335 transitions. [2018-09-14 18:28:44,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2018-09-14 18:28:44,420 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:28:44,420 INFO L376 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 18:28:44,420 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:28:44,421 INFO L82 PathProgramCache]: Analyzing trace with hash -1655821604, now seen corresponding path program 1 times [2018-09-14 18:28:44,421 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:28:44,422 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:28:44,422 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:28:44,422 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:28:44,422 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:28:44,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:28:44,782 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 102 proven. 145 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-09-14 18:28:44,782 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 18:28:44,783 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 18:28:44,790 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:28:44,790 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 18:28:44,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:28:44,888 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 18:28:45,066 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 187 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2018-09-14 18:28:45,067 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 18:28:45,357 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 102 proven. 145 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-09-14 18:28:45,378 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 18:28:45,378 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 9 [2018-09-14 18:28:45,378 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:28:45,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 18:28:45,379 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 18:28:45,379 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-09-14 18:28:45,380 INFO L87 Difference]: Start difference. First operand 132047 states and 184335 transitions. Second operand 5 states. [2018-09-14 18:29:06,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 18:29:06,624 INFO L93 Difference]: Finished difference Result 390834 states and 575492 transitions. [2018-09-14 18:29:06,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 18:29:06,625 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 301 [2018-09-14 18:29:06,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 18:29:07,579 INFO L225 Difference]: With dead ends: 390834 [2018-09-14 18:29:07,579 INFO L226 Difference]: Without dead ends: 258793 [2018-09-14 18:29:07,828 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 611 GetRequests, 600 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-09-14 18:29:07,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258793 states. Received shutdown request... [2018-09-14 18:29:09,342 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-14 18:29:09,348 WARN L206 ceAbstractionStarter]: Timeout [2018-09-14 18:29:09,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.09 06:29:09 BoogieIcfgContainer [2018-09-14 18:29:09,348 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-14 18:29:09,349 INFO L168 Benchmark]: Toolchain (without parser) took 233051.48 ms. Allocated memory was 1.5 GB in the beginning and 3.5 GB in the end (delta: 2.0 GB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -639.6 MB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. [2018-09-14 18:29:09,350 INFO L168 Benchmark]: CDTParser took 0.22 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. [2018-09-14 18:29:09,351 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3958.26 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 222.8 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -140.5 MB). Peak memory consumption was 490.3 MB. Max. memory is 7.1 GB. [2018-09-14 18:29:09,352 INFO L168 Benchmark]: Boogie Procedure Inliner took 328.98 ms. Allocated memory is still 1.8 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 64.1 MB). Peak memory consumption was 64.1 MB. Max. memory is 7.1 GB. [2018-09-14 18:29:09,352 INFO L168 Benchmark]: Boogie Preprocessor took 2183.83 ms. Allocated memory was 1.8 GB in the beginning and 2.6 GB in the end (delta: 854.1 MB). Free memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: -862.3 MB). Peak memory consumption was 125.7 MB. Max. memory is 7.1 GB. [2018-09-14 18:29:09,353 INFO L168 Benchmark]: RCFGBuilder took 18842.37 ms. Allocated memory was 2.6 GB in the beginning and 2.9 GB in the end (delta: 299.9 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 86.7 MB). Peak memory consumption was 999.2 MB. Max. memory is 7.1 GB. [2018-09-14 18:29:09,354 INFO L168 Benchmark]: TraceAbstraction took 207731.84 ms. Allocated memory was 2.9 GB in the beginning and 3.5 GB in the end (delta: 626.0 MB). Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 212.5 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2018-09-14 18:29:09,360 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 3958.26 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 222.8 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -140.5 MB). Peak memory consumption was 490.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 328.98 ms. Allocated memory is still 1.8 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 64.1 MB). Peak memory consumption was 64.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 2183.83 ms. Allocated memory was 1.8 GB in the beginning and 2.6 GB in the end (delta: 854.1 MB). Free memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: -862.3 MB). Peak memory consumption was 125.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 18842.37 ms. Allocated memory was 2.6 GB in the beginning and 2.9 GB in the end (delta: 299.9 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 86.7 MB). Peak memory consumption was 999.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 207731.84 ms. Allocated memory was 2.9 GB in the beginning and 3.5 GB in the end (delta: 626.0 MB). Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 212.5 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 118]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 118). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 207.6s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 190.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5996 SDtfs, 38964 SDslu, 4590 SDs, 0 SdLazy, 66390 SolverSat, 17282 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 160.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2208 GetRequests, 2145 SyntacticMatches, 7 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=132047occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 10.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 2292 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.9s InterpolantComputationTime, 2557 NumberOfCodeBlocks, 2557 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 3612 ConstructedInterpolants, 0 QuantifiedInterpolants, 2552272 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1968 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 16 InterpolantComputations, 9 PerfectInterpolantSequences, 1914/2598 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem19_label44_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-14_18-29-09-375.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem19_label44_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-14_18-29-09-375.csv Completed graceful shutdown