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/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0682b_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2c62905 [2018-09-19 16:04:22,646 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 16:04:22,649 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 16:04:22,670 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 16:04:22,670 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 16:04:22,672 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 16:04:22,674 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 16:04:22,676 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 16:04:22,678 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 16:04:22,680 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 16:04:22,681 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 16:04:22,683 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 16:04:22,684 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 16:04:22,685 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 16:04:22,686 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 16:04:22,695 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 16:04:22,696 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 16:04:22,701 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 16:04:22,705 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 16:04:22,707 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 16:04:22,710 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 16:04:22,712 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 16:04:22,718 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 16:04:22,719 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 16:04:22,720 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 16:04:22,721 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 16:04:22,722 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 16:04:22,723 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 16:04:22,724 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 16:04:22,725 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 16:04:22,726 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 16:04:22,726 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 16:04:22,730 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 16:04:22,730 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 16:04:22,731 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 16:04:22,734 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 16:04:22,734 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-19 16:04:22,762 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 16:04:22,762 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 16:04:22,763 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 16:04:22,764 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-19 16:04:22,764 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-19 16:04:22,765 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-19 16:04:22,765 INFO L133 SettingsManager]: * Use SBE=true [2018-09-19 16:04:22,765 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 16:04:22,765 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-19 16:04:22,765 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-19 16:04:22,766 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 16:04:22,766 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 16:04:22,766 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 16:04:22,769 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 16:04:22,769 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-19 16:04:22,770 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-19 16:04:22,770 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-19 16:04:22,770 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 16:04:22,770 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 16:04:22,771 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 16:04:22,771 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 16:04:22,771 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 16:04:22,771 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 16:04:22,773 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 16:04:22,773 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 16:04:22,773 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 16:04:22,773 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 16:04:22,774 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-19 16:04:22,774 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 16:04:22,774 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-19 16:04:22,774 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-19 16:04:22,775 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 16:04:22,843 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 16:04:22,864 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 16:04:22,868 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 16:04:22,869 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 16:04:22,870 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 16:04:22,871 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0682b_true-unreach-call.c [2018-09-19 16:04:23,269 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fb35fec2/b9c0e1139ad14fecacf6627a000cc9f6/FLAG21313f13b [2018-09-19 16:04:23,475 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 16:04:23,476 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0682b_true-unreach-call.c [2018-09-19 16:04:23,486 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fb35fec2/b9c0e1139ad14fecacf6627a000cc9f6/FLAG21313f13b [2018-09-19 16:04:23,501 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fb35fec2/b9c0e1139ad14fecacf6627a000cc9f6 [2018-09-19 16:04:23,511 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 16:04:23,515 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-19 16:04:23,516 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 16:04:23,516 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 16:04:23,523 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 16:04:23,524 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:04:23" (1/1) ... [2018-09-19 16:04:23,527 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f1f9c11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:04:23, skipping insertion in model container [2018-09-19 16:04:23,527 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:04:23" (1/1) ... [2018-09-19 16:04:23,539 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 16:04:23,838 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 16:04:23,875 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 16:04:23,985 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 16:04:24,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:04:24 WrapperNode [2018-09-19 16:04:24,034 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 16:04:24,035 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 16:04:24,035 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 16:04:24,035 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 16:04:24,050 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:04:24" (1/1) ... [2018-09-19 16:04:24,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:04:24" (1/1) ... [2018-09-19 16:04:24,071 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:04:24" (1/1) ... [2018-09-19 16:04:24,071 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:04:24" (1/1) ... [2018-09-19 16:04:24,101 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:04:24" (1/1) ... [2018-09-19 16:04:24,111 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:04:24" (1/1) ... [2018-09-19 16:04:24,116 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:04:24" (1/1) ... [2018-09-19 16:04:24,122 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 16:04:24,123 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 16:04:24,123 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 16:04:24,124 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 16:04:24,132 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:04:24" (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 [2018-09-19 16:04:24,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 16:04:24,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 16:04:24,304 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-09-19 16:04:24,304 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2018-09-19 16:04:24,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2018-09-19 16:04:24,304 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-09-19 16:04:24,304 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2018-09-19 16:04:24,305 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 16:04:24,305 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-19 16:04:24,305 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-19 16:04:24,305 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-09-19 16:04:24,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-19 16:04:24,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-19 16:04:24,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-19 16:04:24,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-19 16:04:24,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-19 16:04:24,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-19 16:04:24,310 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2018-09-19 16:04:24,310 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2018-09-19 16:04:24,310 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-09-19 16:04:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2018-09-19 16:04:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 16:04:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 16:04:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 16:04:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-19 16:04:24,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-19 16:04:24,714 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:04:24,755 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:04:24,799 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:04:24,819 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:04:24,874 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:04:24,982 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:04:25,002 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:04:25,035 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:04:25,682 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:04:25,709 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:04:25,747 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:04:25,790 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:04:25,818 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:04:25,872 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:04:28,259 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:04:28,272 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:04:28,290 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:04:30,523 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:04:30,564 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:04:47,845 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:04:47,883 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:04:47,978 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 16:04:47,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:04:47 BoogieIcfgContainer [2018-09-19 16:04:47,979 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 16:04:47,980 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 16:04:47,980 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 16:04:47,984 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 16:04:47,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 04:04:23" (1/3) ... [2018-09-19 16:04:47,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d3e8b5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:04:47, skipping insertion in model container [2018-09-19 16:04:47,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:04:24" (2/3) ... [2018-09-19 16:04:47,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d3e8b5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:04:47, skipping insertion in model container [2018-09-19 16:04:47,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:04:47" (3/3) ... [2018-09-19 16:04:47,988 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0682b_true-unreach-call.c [2018-09-19 16:04:48,000 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 16:04:48,011 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 16:04:48,060 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 16:04:48,061 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 16:04:48,061 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 16:04:48,061 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 16:04:48,061 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 16:04:48,061 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 16:04:48,061 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 16:04:48,062 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 16:04:48,062 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 16:04:48,088 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-09-19 16:04:48,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-09-19 16:04:48,097 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:04:48,098 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] [2018-09-19 16:04:48,100 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:04:48,106 INFO L82 PathProgramCache]: Analyzing trace with hash 1280076185, now seen corresponding path program 1 times [2018-09-19 16:04:48,112 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:04:48,112 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-19 16:04:48,120 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:04:48,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:04:48,348 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:04:48,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-19 16:04:48,370 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:04:48,389 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:04:48,389 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-19 16:04:48,393 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-19 16:04:48,405 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-19 16:04:48,405 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-19 16:04:48,408 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 2 states. [2018-09-19 16:04:48,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:04:48,469 INFO L93 Difference]: Finished difference Result 424 states and 554 transitions. [2018-09-19 16:04:48,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-19 16:04:48,471 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 27 [2018-09-19 16:04:48,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:04:48,489 INFO L225 Difference]: With dead ends: 424 [2018-09-19 16:04:48,489 INFO L226 Difference]: Without dead ends: 211 [2018-09-19 16:04:48,496 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-19 16:04:48,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2018-09-19 16:04:48,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2018-09-19 16:04:48,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2018-09-19 16:04:48,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 251 transitions. [2018-09-19 16:04:48,563 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 251 transitions. Word has length 27 [2018-09-19 16:04:48,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:04:48,564 INFO L480 AbstractCegarLoop]: Abstraction has 211 states and 251 transitions. [2018-09-19 16:04:48,564 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-19 16:04:48,564 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 251 transitions. [2018-09-19 16:04:48,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-09-19 16:04:48,567 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:04:48,568 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 16:04:48,568 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:04:48,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1136930595, now seen corresponding path program 1 times [2018-09-19 16:04:48,570 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:04:48,570 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-19 16:04:48,575 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:04:48,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:04:48,847 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:04:48,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-19 16:04:48,888 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:04:48,904 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:04:48,905 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-19 16:04:48,906 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-19 16:04:48,907 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-19 16:04:48,907 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-19 16:04:48,907 INFO L87 Difference]: Start difference. First operand 211 states and 251 transitions. Second operand 3 states. [2018-09-19 16:04:48,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:04:48,952 INFO L93 Difference]: Finished difference Result 379 states and 458 transitions. [2018-09-19 16:04:48,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-19 16:04:48,953 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66 [2018-09-19 16:04:48,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:04:48,958 INFO L225 Difference]: With dead ends: 379 [2018-09-19 16:04:48,959 INFO L226 Difference]: Without dead ends: 211 [2018-09-19 16:04:48,960 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-19 16:04:48,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2018-09-19 16:04:48,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2018-09-19 16:04:48,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2018-09-19 16:04:48,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 250 transitions. [2018-09-19 16:04:48,986 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 250 transitions. Word has length 66 [2018-09-19 16:04:48,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:04:48,986 INFO L480 AbstractCegarLoop]: Abstraction has 211 states and 250 transitions. [2018-09-19 16:04:48,986 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-19 16:04:48,986 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 250 transitions. [2018-09-19 16:04:48,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-09-19 16:04:48,990 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:04:48,990 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 16:04:48,990 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:04:48,991 INFO L82 PathProgramCache]: Analyzing trace with hash 622409496, now seen corresponding path program 1 times [2018-09-19 16:04:48,991 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:04:48,991 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-19 16:04:49,004 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:04:49,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:04:49,465 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:04:49,548 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-19 16:04:49,555 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-19 16:04:49,556 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:04:49,561 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:04:49,579 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 16:04:49,580 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-19 16:04:49,666 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-19 16:04:49,682 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-19 16:04:49,682 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:04:49,709 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:04:49,782 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 16:04:49,782 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-19 16:04:50,716 WARN L178 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2018-09-19 16:04:51,090 INFO L682 Elim1Store]: detected equality via solver [2018-09-19 16:04:51,091 INFO L682 Elim1Store]: detected equality via solver [2018-09-19 16:04:51,093 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 35 [2018-09-19 16:04:51,139 INFO L700 Elim1Store]: detected not equals via solver [2018-09-19 16:04:51,161 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 25 [2018-09-19 16:04:51,162 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:04:51,205 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:04:51,265 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 16:04:51,266 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:39, output treesize:31 [2018-09-19 16:04:51,871 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 33 [2018-09-19 16:04:51,897 INFO L700 Elim1Store]: detected not equals via solver [2018-09-19 16:04:51,915 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 29 [2018-09-19 16:04:51,916 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:04:51,968 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:04:52,319 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-19 16:04:52,320 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:54, output treesize:35 [2018-09-19 16:04:54,547 WARN L178 SmtUtils]: Spent 2.07 s on a formula simplification that was a NOOP. DAG size: 30 [2018-09-19 16:04:54,593 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2018-09-19 16:04:54,749 INFO L700 Elim1Store]: detected not equals via solver [2018-09-19 16:04:54,755 INFO L303 Elim1Store]: Index analysis took 161 ms [2018-09-19 16:04:54,756 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 11 [2018-09-19 16:04:54,757 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:04:54,808 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:04:54,889 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 16:04:54,890 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:42, output treesize:21 [2018-09-19 16:04:55,688 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-19 16:04:55,707 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-19 16:04:55,708 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:04:55,734 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:04:55,796 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-19 16:04:55,797 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:43, output treesize:39 [2018-09-19 16:04:56,059 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-19 16:04:56,077 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-19 16:04:56,078 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:04:56,085 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:04:56,127 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-19 16:04:56,127 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:48, output treesize:33 [2018-09-19 16:04:57,408 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 38 [2018-09-19 16:04:57,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-19 16:04:57,483 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:04:57,503 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:04:57,503 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2018-09-19 16:04:57,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-09-19 16:04:57,504 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-09-19 16:04:57,506 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=501, Unknown=0, NotChecked=0, Total=552 [2018-09-19 16:04:57,506 INFO L87 Difference]: Start difference. First operand 211 states and 250 transitions. Second operand 24 states. [2018-09-19 16:04:58,862 WARN L178 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-09-19 16:05:00,488 WARN L178 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2018-09-19 16:05:01,319 WARN L178 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2018-09-19 16:05:02,678 WARN L178 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-09-19 16:05:03,306 WARN L178 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2018-09-19 16:05:05,070 WARN L178 SmtUtils]: Spent 1.30 s on a formula simplification that was a NOOP. DAG size: 38 [2018-09-19 16:05:06,347 WARN L178 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2018-09-19 16:05:07,804 WARN L178 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2018-09-19 16:05:08,424 WARN L178 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2018-09-19 16:05:09,471 WARN L178 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2018-09-19 16:05:10,246 WARN L178 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2018-09-19 16:05:11,555 WARN L178 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2018-09-19 16:05:12,676 WARN L178 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2018-09-19 16:05:14,402 WARN L178 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2018-09-19 16:05:39,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:05:39,649 INFO L93 Difference]: Finished difference Result 252 states and 299 transitions. [2018-09-19 16:05:39,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-09-19 16:05:39,653 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 82 [2018-09-19 16:05:39,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:05:39,656 INFO L225 Difference]: With dead ends: 252 [2018-09-19 16:05:39,657 INFO L226 Difference]: Without dead ends: 204 [2018-09-19 16:05:39,658 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 16.2s TimeCoverageRelationStatistics Valid=235, Invalid=1927, Unknown=0, NotChecked=0, Total=2162 [2018-09-19 16:05:39,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2018-09-19 16:05:39,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2018-09-19 16:05:39,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2018-09-19 16:05:39,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 235 transitions. [2018-09-19 16:05:39,679 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 235 transitions. Word has length 82 [2018-09-19 16:05:39,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:05:39,679 INFO L480 AbstractCegarLoop]: Abstraction has 204 states and 235 transitions. [2018-09-19 16:05:39,680 INFO L481 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-09-19 16:05:39,680 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 235 transitions. [2018-09-19 16:05:39,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-09-19 16:05:39,683 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:05:39,683 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 16:05:39,684 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:05:39,684 INFO L82 PathProgramCache]: Analyzing trace with hash -1295429764, now seen corresponding path program 1 times [2018-09-19 16:05:39,685 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:05:39,685 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-09-19 16:05:39,692 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:05:39,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:05:39,969 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:05:40,026 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-19 16:05:40,033 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-19 16:05:40,033 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:05:40,038 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:05:40,061 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 16:05:40,062 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-19 16:05:40,115 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-19 16:05:40,132 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-19 16:05:40,133 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:05:40,156 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:05:40,228 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 16:05:40,228 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-19 16:05:41,153 WARN L178 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 25 [2018-09-19 16:05:41,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-19 16:05:41,427 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:05:41,447 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:05:41,448 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 16:05:41,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 16:05:41,448 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 16:05:41,449 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-09-19 16:05:41,449 INFO L87 Difference]: Start difference. First operand 204 states and 235 transitions. Second operand 10 states. [2018-09-19 16:05:42,813 WARN L178 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-09-19 16:05:52,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:05:52,770 INFO L93 Difference]: Finished difference Result 262 states and 310 transitions. [2018-09-19 16:05:52,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-19 16:05:52,771 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 87 [2018-09-19 16:05:52,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:05:52,774 INFO L225 Difference]: With dead ends: 262 [2018-09-19 16:05:52,774 INFO L226 Difference]: Without dead ends: 202 [2018-09-19 16:05:52,775 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2018-09-19 16:05:52,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2018-09-19 16:05:52,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2018-09-19 16:05:52,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2018-09-19 16:05:52,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 229 transitions. [2018-09-19 16:05:52,793 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 229 transitions. Word has length 87 [2018-09-19 16:05:52,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:05:52,793 INFO L480 AbstractCegarLoop]: Abstraction has 202 states and 229 transitions. [2018-09-19 16:05:52,793 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 16:05:52,794 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 229 transitions. [2018-09-19 16:05:52,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-09-19 16:05:52,796 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:05:52,796 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 16:05:52,796 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:05:52,796 INFO L82 PathProgramCache]: Analyzing trace with hash 360420796, now seen corresponding path program 1 times [2018-09-19 16:05:52,797 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:05:52,797 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-09-19 16:05:52,805 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:05:53,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:05:53,072 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:05:53,183 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-19 16:05:53,190 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-19 16:05:53,191 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:05:53,227 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:05:53,244 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 16:05:53,244 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-19 16:05:53,297 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-19 16:05:53,302 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-19 16:05:53,302 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:05:53,307 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:05:53,317 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 16:05:53,318 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-19 16:05:53,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-19 16:05:53,583 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:05:53,605 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:05:53,605 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-19 16:05:53,606 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-19 16:05:53,606 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-19 16:05:53,606 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-19 16:05:53,607 INFO L87 Difference]: Start difference. First operand 202 states and 229 transitions. Second operand 9 states. [2018-09-19 16:06:00,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:06:00,045 INFO L93 Difference]: Finished difference Result 208 states and 234 transitions. [2018-09-19 16:06:00,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-19 16:06:00,047 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 87 [2018-09-19 16:06:00,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:06:00,049 INFO L225 Difference]: With dead ends: 208 [2018-09-19 16:06:00,049 INFO L226 Difference]: Without dead ends: 200 [2018-09-19 16:06:00,050 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2018-09-19 16:06:00,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2018-09-19 16:06:00,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2018-09-19 16:06:00,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2018-09-19 16:06:00,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 225 transitions. [2018-09-19 16:06:00,066 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 225 transitions. Word has length 87 [2018-09-19 16:06:00,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:06:00,067 INFO L480 AbstractCegarLoop]: Abstraction has 200 states and 225 transitions. [2018-09-19 16:06:00,067 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-19 16:06:00,067 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 225 transitions. [2018-09-19 16:06:00,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-09-19 16:06:00,069 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:06:00,069 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 16:06:00,069 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:06:00,069 INFO L82 PathProgramCache]: Analyzing trace with hash -300968945, now seen corresponding path program 1 times [2018-09-19 16:06:00,070 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:06:00,070 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-09-19 16:06:00,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:06:00,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:06:00,362 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:06:01,323 WARN L178 SmtUtils]: Spent 714.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-19 16:06:01,905 WARN L178 SmtUtils]: Spent 432.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-09-19 16:06:02,125 WARN L178 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-09-19 16:06:02,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-19 16:06:02,145 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:06:02,158 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:06:02,159 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 16:06:02,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 16:06:02,160 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 16:06:02,160 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-09-19 16:06:02,160 INFO L87 Difference]: Start difference. First operand 200 states and 225 transitions. Second operand 6 states. [2018-09-19 16:06:10,192 WARN L178 SmtUtils]: Spent 563.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-19 16:06:13,025 WARN L178 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-19 16:06:18,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:06:18,101 INFO L93 Difference]: Finished difference Result 206 states and 230 transitions. [2018-09-19 16:06:18,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 16:06:18,103 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 88 [2018-09-19 16:06:18,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:06:18,106 INFO L225 Difference]: With dead ends: 206 [2018-09-19 16:06:18,106 INFO L226 Difference]: Without dead ends: 200 [2018-09-19 16:06:18,107 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 82 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-09-19 16:06:18,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2018-09-19 16:06:18,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2018-09-19 16:06:18,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2018-09-19 16:06:18,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 223 transitions. [2018-09-19 16:06:18,124 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 223 transitions. Word has length 88 [2018-09-19 16:06:18,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:06:18,125 INFO L480 AbstractCegarLoop]: Abstraction has 200 states and 223 transitions. [2018-09-19 16:06:18,125 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 16:06:18,125 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 223 transitions. [2018-09-19 16:06:18,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-09-19 16:06:18,126 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:06:18,126 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 16:06:18,127 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:06:18,127 INFO L82 PathProgramCache]: Analyzing trace with hash 2134642871, now seen corresponding path program 1 times [2018-09-19 16:06:18,127 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:06:18,128 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-09-19 16:06:18,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:06:18,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:06:18,324 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:06:18,363 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-19 16:06:18,369 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-19 16:06:18,369 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:06:18,377 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:06:18,394 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 16:06:18,395 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-19 16:06:18,432 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-19 16:06:18,437 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-19 16:06:18,438 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:06:18,441 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:06:18,451 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 16:06:18,452 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-19 16:06:19,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-19 16:06:19,003 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:06:19,017 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:06:19,017 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 16:06:19,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 16:06:19,018 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 16:06:19,018 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-09-19 16:06:19,018 INFO L87 Difference]: Start difference. First operand 200 states and 223 transitions. Second operand 10 states. [2018-09-19 16:06:19,762 WARN L178 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-19 16:06:21,408 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2018-09-19 16:06:30,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:06:30,116 INFO L93 Difference]: Finished difference Result 206 states and 228 transitions. [2018-09-19 16:06:30,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-19 16:06:30,118 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 88 [2018-09-19 16:06:30,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:06:30,120 INFO L225 Difference]: With dead ends: 206 [2018-09-19 16:06:30,120 INFO L226 Difference]: Without dead ends: 200 [2018-09-19 16:06:30,121 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2018-09-19 16:06:30,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2018-09-19 16:06:30,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2018-09-19 16:06:30,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2018-09-19 16:06:30,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 221 transitions. [2018-09-19 16:06:30,136 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 221 transitions. Word has length 88 [2018-09-19 16:06:30,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:06:30,137 INFO L480 AbstractCegarLoop]: Abstraction has 200 states and 221 transitions. [2018-09-19 16:06:30,137 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 16:06:30,137 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 221 transitions. [2018-09-19 16:06:30,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-09-19 16:06:30,138 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:06:30,138 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 16:06:30,139 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:06:30,139 INFO L82 PathProgramCache]: Analyzing trace with hash -102996394, now seen corresponding path program 1 times [2018-09-19 16:06:30,139 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:06:30,140 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2018-09-19 16:06:30,147 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:06:30,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:06:30,430 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:06:30,588 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-19 16:06:30,597 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-19 16:06:30,598 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:06:30,626 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:06:30,676 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 16:06:30,676 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:23 [2018-09-19 16:06:30,753 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-19 16:06:30,761 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-19 16:06:30,762 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:06:30,795 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:06:30,913 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 16:06:30,914 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:17 [2018-09-19 16:06:31,200 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-09-19 16:06:31,250 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-19 16:06:31,256 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-19 16:06:31,257 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:06:31,265 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:06:31,305 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-19 16:06:31,306 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:37, output treesize:33 [2018-09-19 16:06:31,436 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-19 16:06:31,449 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-19 16:06:31,450 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:06:31,454 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:06:31,480 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-19 16:06:31,481 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:42, output treesize:27 [2018-09-19 16:06:32,275 WARN L178 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 31 [2018-09-19 16:06:32,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-19 16:06:32,507 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:06:32,519 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:06:32,519 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 16:06:32,520 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 16:06:32,520 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 16:06:32,520 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2018-09-19 16:06:32,521 INFO L87 Difference]: Start difference. First operand 200 states and 221 transitions. Second operand 14 states. [2018-09-19 16:06:33,227 WARN L178 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2018-09-19 16:06:33,840 WARN L178 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-09-19 16:06:34,128 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2018-09-19 16:06:35,344 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-09-19 16:06:35,604 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2018-09-19 16:06:35,958 WARN L178 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2018-09-19 16:06:36,482 WARN L178 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2018-09-19 16:06:37,105 WARN L178 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-09-19 16:06:37,488 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2018-09-19 16:06:38,037 WARN L178 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2018-09-19 16:06:38,495 WARN L178 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2018-09-19 16:06:47,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:06:47,572 INFO L93 Difference]: Finished difference Result 249 states and 279 transitions. [2018-09-19 16:06:47,575 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 16:06:47,575 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 89 [2018-09-19 16:06:47,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:06:47,578 INFO L225 Difference]: With dead ends: 249 [2018-09-19 16:06:47,578 INFO L226 Difference]: Without dead ends: 194 [2018-09-19 16:06:47,579 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=129, Invalid=573, Unknown=0, NotChecked=0, Total=702 [2018-09-19 16:06:47,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2018-09-19 16:06:47,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2018-09-19 16:06:47,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2018-09-19 16:06:47,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 213 transitions. [2018-09-19 16:06:47,601 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 213 transitions. Word has length 89 [2018-09-19 16:06:47,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:06:47,601 INFO L480 AbstractCegarLoop]: Abstraction has 194 states and 213 transitions. [2018-09-19 16:06:47,601 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 16:06:47,601 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 213 transitions. [2018-09-19 16:06:47,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-09-19 16:06:47,603 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:06:47,603 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 16:06:47,603 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:06:47,604 INFO L82 PathProgramCache]: Analyzing trace with hash -1365669080, now seen corresponding path program 1 times [2018-09-19 16:06:47,604 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:06:47,604 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2018-09-19 16:06:47,618 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:06:47,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:06:48,007 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:06:48,052 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-19 16:06:48,060 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-19 16:06:48,060 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:06:48,067 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:06:48,085 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 16:06:48,086 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-19 16:06:48,133 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-19 16:06:48,141 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-19 16:06:48,141 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:06:48,144 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:06:48,155 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 16:06:48,155 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-19 16:06:48,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-19 16:06:48,382 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:06:48,396 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:06:48,396 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-19 16:06:48,396 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-19 16:06:48,397 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-19 16:06:48,397 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-19 16:06:48,397 INFO L87 Difference]: Start difference. First operand 194 states and 213 transitions. Second operand 9 states. [2018-09-19 16:06:50,245 WARN L178 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-09-19 16:06:58,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:06:58,179 INFO L93 Difference]: Finished difference Result 235 states and 261 transitions. [2018-09-19 16:06:58,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-19 16:06:58,180 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 90 [2018-09-19 16:06:58,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:06:58,183 INFO L225 Difference]: With dead ends: 235 [2018-09-19 16:06:58,183 INFO L226 Difference]: Without dead ends: 194 [2018-09-19 16:06:58,184 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2018-09-19 16:06:58,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2018-09-19 16:06:58,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2018-09-19 16:06:58,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2018-09-19 16:06:58,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 212 transitions. [2018-09-19 16:06:58,202 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 212 transitions. Word has length 90 [2018-09-19 16:06:58,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:06:58,202 INFO L480 AbstractCegarLoop]: Abstraction has 194 states and 212 transitions. [2018-09-19 16:06:58,202 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-19 16:06:58,203 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 212 transitions. [2018-09-19 16:06:58,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-09-19 16:06:58,204 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:06:58,204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 16:06:58,204 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:06:58,204 INFO L82 PathProgramCache]: Analyzing trace with hash -1861356776, now seen corresponding path program 1 times [2018-09-19 16:06:58,205 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:06:58,205 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2018-09-19 16:06:58,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:06:58,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:06:58,500 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:06:58,774 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-19 16:06:58,801 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-19 16:06:58,802 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:06:58,851 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:06:58,990 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 16:06:58,990 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:23 [2018-09-19 16:06:59,255 WARN L178 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-09-19 16:06:59,299 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-19 16:06:59,343 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-19 16:06:59,344 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:06:59,368 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:06:59,428 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 16:06:59,428 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:17 [2018-09-19 16:06:59,586 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-09-19 16:06:59,747 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-09-19 16:06:59,776 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-19 16:06:59,785 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-19 16:06:59,786 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:06:59,793 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:06:59,834 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-19 16:06:59,835 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:37, output treesize:33 [2018-09-19 16:06:59,970 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-19 16:06:59,978 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-19 16:06:59,979 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:06:59,984 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:07:00,014 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-19 16:07:00,014 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:42, output treesize:27 [2018-09-19 16:07:01,105 WARN L178 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 34 [2018-09-19 16:07:01,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-19 16:07:01,340 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:07:01,359 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:07:01,359 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 16:07:01,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 16:07:01,360 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 16:07:01,360 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2018-09-19 16:07:01,361 INFO L87 Difference]: Start difference. First operand 194 states and 212 transitions. Second operand 14 states. [2018-09-19 16:07:02,373 WARN L178 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-09-19 16:07:02,681 WARN L178 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2018-09-19 16:07:03,506 WARN L178 SmtUtils]: Spent 542.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-09-19 16:07:04,326 WARN L178 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-09-19 16:07:04,908 WARN L178 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-09-19 16:07:05,220 WARN L178 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2018-09-19 16:07:05,517 WARN L178 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2018-09-19 16:07:07,153 WARN L178 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2018-09-19 16:07:07,489 WARN L178 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2018-09-19 16:07:11,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:07:11,960 INFO L93 Difference]: Finished difference Result 194 states and 212 transitions. [2018-09-19 16:07:11,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 16:07:11,962 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 91 [2018-09-19 16:07:11,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:07:11,963 INFO L225 Difference]: With dead ends: 194 [2018-09-19 16:07:11,963 INFO L226 Difference]: Without dead ends: 0 [2018-09-19 16:07:11,964 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=129, Invalid=573, Unknown=0, NotChecked=0, Total=702 [2018-09-19 16:07:11,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-19 16:07:11,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-19 16:07:11,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-19 16:07:11,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-19 16:07:11,965 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 91 [2018-09-19 16:07:11,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:07:11,965 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-19 16:07:11,965 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 16:07:11,965 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-19 16:07:11,965 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-19 16:07:11,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-19 16:07:12,153 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 237 [2018-09-19 16:07:12,615 WARN L178 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 19 [2018-09-19 16:08:06,235 WARN L178 SmtUtils]: Spent 53.59 s on a formula simplification. DAG size of input: 239 DAG size of output: 159 [2018-09-19 16:08:06,368 WARN L178 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 40 [2018-09-19 16:08:49,156 WARN L178 SmtUtils]: Spent 42.48 s on a formula simplification. DAG size of input: 239 DAG size of output: 159 [2018-09-19 16:08:51,571 WARN L178 SmtUtils]: Spent 2.41 s on a formula simplification. DAG size of input: 107 DAG size of output: 39 Received shutdown request... [2018-09-19 16:09:01,472 WARN L186 SmtUtils]: Removed 18 from assertion stack [2018-09-19 16:09:01,472 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-09-19 16:09:01,474 INFO L168 Benchmark]: Toolchain (without parser) took 277961.99 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 998.2 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -595.0 MB). Peak memory consumption was 403.3 MB. Max. memory is 7.1 GB. [2018-09-19 16:09:01,475 INFO L168 Benchmark]: CDTParser took 0.24 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. [2018-09-19 16:09:01,476 INFO L168 Benchmark]: CACSL2BoogieTranslator took 518.46 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-19 16:09:01,477 INFO L168 Benchmark]: Boogie Preprocessor took 87.91 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 16:09:01,477 INFO L168 Benchmark]: RCFGBuilder took 23856.10 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 749.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -747.7 MB). Peak memory consumption was 18.0 MB. Max. memory is 7.1 GB. [2018-09-19 16:09:01,477 INFO L168 Benchmark]: TraceAbstraction took 253493.05 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 249.0 MB). Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 131.6 MB). Peak memory consumption was 380.6 MB. Max. memory is 7.1 GB. [2018-09-19 16:09:01,481 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 518.46 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 87.91 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 23856.10 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 749.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -747.7 MB). Peak memory consumption was 18.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 253493.05 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 249.0 MB). Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 131.6 MB). Peak memory consumption was 380.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 285]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while SimplifyDDAWithTimeout was simplifying term of DAG size 239. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown