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_0864b_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2c62905 [2018-09-19 16:08:25,768 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 16:08:25,773 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 16:08:25,795 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 16:08:25,795 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 16:08:25,797 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 16:08:25,799 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 16:08:25,801 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 16:08:25,803 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 16:08:25,804 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 16:08:25,805 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 16:08:25,805 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 16:08:25,806 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 16:08:25,807 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 16:08:25,808 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 16:08:25,809 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 16:08:25,810 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 16:08:25,812 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 16:08:25,816 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 16:08:25,821 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 16:08:25,822 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 16:08:25,824 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 16:08:25,829 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 16:08:25,829 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 16:08:25,829 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 16:08:25,831 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 16:08:25,832 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 16:08:25,833 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 16:08:25,835 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 16:08:25,839 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 16:08:25,840 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 16:08:25,841 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 16:08:25,841 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 16:08:25,842 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 16:08:25,845 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 16:08:25,845 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 16:08:25,846 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 16:08:25,870 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 16:08:25,871 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 16:08:25,872 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 16:08:25,872 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-19 16:08:25,873 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-19 16:08:25,873 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-19 16:08:25,874 INFO L133 SettingsManager]: * Use SBE=true [2018-09-19 16:08:25,874 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 16:08:25,874 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-19 16:08:25,875 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-19 16:08:25,875 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 16:08:25,876 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 16:08:25,876 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 16:08:25,876 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 16:08:25,876 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-19 16:08:25,877 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-19 16:08:25,877 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-19 16:08:25,877 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 16:08:25,877 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 16:08:25,878 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 16:08:25,879 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 16:08:25,879 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 16:08:25,879 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 16:08:25,879 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 16:08:25,880 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 16:08:25,880 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 16:08:25,880 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 16:08:25,880 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-19 16:08:25,880 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 16:08:25,881 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-19 16:08:25,881 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-19 16:08:25,881 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 16:08:25,955 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 16:08:25,975 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 16:08:25,979 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 16:08:25,981 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 16:08:25,982 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 16:08:25,983 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0864b_true-unreach-call.c [2018-09-19 16:08:26,341 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04c09f7ac/35804c0a5d1c47baa88513f6a1f2b08a/FLAG4184eebd8 [2018-09-19 16:08:26,589 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 16:08:26,590 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0864b_true-unreach-call.c [2018-09-19 16:08:26,607 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04c09f7ac/35804c0a5d1c47baa88513f6a1f2b08a/FLAG4184eebd8 [2018-09-19 16:08:26,629 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04c09f7ac/35804c0a5d1c47baa88513f6a1f2b08a [2018-09-19 16:08:26,642 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 16:08:26,648 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-19 16:08:26,649 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 16:08:26,649 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 16:08:26,656 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 16:08:26,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:08:26" (1/1) ... [2018-09-19 16:08:26,661 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@858a55c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:08:26, skipping insertion in model container [2018-09-19 16:08:26,661 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:08:26" (1/1) ... [2018-09-19 16:08:26,674 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 16:08:27,190 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 16:08:27,217 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 16:08:27,393 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 16:08:27,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:08:27 WrapperNode [2018-09-19 16:08:27,465 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 16:08:27,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 16:08:27,467 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 16:08:27,467 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 16:08:27,483 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:08:27" (1/1) ... [2018-09-19 16:08:27,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:08:27" (1/1) ... [2018-09-19 16:08:27,518 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:08:27" (1/1) ... [2018-09-19 16:08:27,518 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:08:27" (1/1) ... [2018-09-19 16:08:27,675 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:08:27" (1/1) ... [2018-09-19 16:08:27,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:08:27" (1/1) ... [2018-09-19 16:08:27,726 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:08:27" (1/1) ... [2018-09-19 16:08:27,745 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 16:08:27,750 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 16:08:27,750 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 16:08:27,750 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 16:08:27,752 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:08:27" (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 16:08:27,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 16:08:27,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 16:08:27,834 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2018-09-19 16:08:27,834 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-09-19 16:08:27,835 INFO L138 BoogieDeclarations]: Found implementation of procedure isinteger_double [2018-09-19 16:08:27,835 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2018-09-19 16:08:27,835 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_double [2018-09-19 16:08:27,835 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_double [2018-09-19 16:08:27,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrt [2018-09-19 16:08:27,836 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-09-19 16:08:27,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_pow [2018-09-19 16:08:27,836 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 16:08:27,837 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-19 16:08:27,839 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-19 16:08:27,839 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2018-09-19 16:08:27,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-19 16:08:27,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-19 16:08:27,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-19 16:08:27,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-19 16:08:27,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-19 16:08:27,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-19 16:08:27,841 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-09-19 16:08:27,841 INFO L130 BoogieDeclarations]: Found specification of procedure isinteger_double [2018-09-19 16:08:27,843 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2018-09-19 16:08:27,843 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_double [2018-09-19 16:08:27,843 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_double [2018-09-19 16:08:27,843 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrt [2018-09-19 16:08:27,843 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-09-19 16:08:27,844 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_pow [2018-09-19 16:08:27,844 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 16:08:27,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 16:08:27,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 16:08:27,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-19 16:08:27,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-19 16:08:28,380 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:08:29,264 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:08:29,289 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:08:30,197 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:08:30,230 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:08:31,070 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:08:32,489 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:08:32,574 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:08:32,607 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:08:32,727 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:08:32,774 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:08:32,849 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:08:32,996 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:08:33,024 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:08:33,033 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:08:33,630 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:08:33,651 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:08:33,688 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:08:36,166 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:08:36,217 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:08:39,010 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:08:41,249 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:08:43,600 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:08:45,739 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:08:48,098 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:08:48,139 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:08:48,204 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:08:48,336 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:08:48,355 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:08:50,462 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:08:57,136 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:08:57,162 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:08:57,199 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:08:57,209 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:08:57,568 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:09:00,729 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:09:00,739 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:09:00,782 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:09:16,690 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:09:17,513 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:09:17,551 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:09:17,569 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:09:19,768 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:09:19,783 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:09:19,799 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:09:23,583 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:09:23,597 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:09:23,639 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:09:25,851 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:09:25,861 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:09:25,882 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:09:25,932 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:09:25,944 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:09:26,472 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:09:29,244 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 16:09:29,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:09:29 BoogieIcfgContainer [2018-09-19 16:09:29,245 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 16:09:29,246 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 16:09:29,246 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 16:09:29,249 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 16:09:29,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 04:08:26" (1/3) ... [2018-09-19 16:09:29,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bc7aee8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:09:29, skipping insertion in model container [2018-09-19 16:09:29,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:08:27" (2/3) ... [2018-09-19 16:09:29,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bc7aee8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:09:29, skipping insertion in model container [2018-09-19 16:09:29,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:09:29" (3/3) ... [2018-09-19 16:09:29,253 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0864b_true-unreach-call.c [2018-09-19 16:09:29,263 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 16:09:29,273 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 16:09:29,332 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 16:09:29,332 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 16:09:29,333 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 16:09:29,333 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 16:09:29,333 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 16:09:29,333 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 16:09:29,333 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 16:09:29,333 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 16:09:29,334 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 16:09:29,372 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states. [2018-09-19 16:09:29,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-09-19 16:09:29,391 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:09:29,392 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 16:09:29,394 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:09:29,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1836741029, now seen corresponding path program 1 times [2018-09-19 16:09:29,403 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:09:29,404 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 16:09:29,410 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:09:29,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:09:29,624 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:09:29,645 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 16:09:29,645 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:09:29,662 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:09:29,662 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-19 16:09:29,666 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-19 16:09:29,678 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-19 16:09:29,679 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-19 16:09:29,682 INFO L87 Difference]: Start difference. First operand 674 states. Second operand 2 states. [2018-09-19 16:09:29,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:09:29,784 INFO L93 Difference]: Finished difference Result 1339 states and 1756 transitions. [2018-09-19 16:09:29,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-19 16:09:29,786 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 27 [2018-09-19 16:09:29,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:09:29,807 INFO L225 Difference]: With dead ends: 1339 [2018-09-19 16:09:29,808 INFO L226 Difference]: Without dead ends: 669 [2018-09-19 16:09:29,817 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 16:09:29,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2018-09-19 16:09:29,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 669. [2018-09-19 16:09:29,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 669 states. [2018-09-19 16:09:29,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 793 transitions. [2018-09-19 16:09:29,916 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 793 transitions. Word has length 27 [2018-09-19 16:09:29,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:09:29,917 INFO L480 AbstractCegarLoop]: Abstraction has 669 states and 793 transitions. [2018-09-19 16:09:29,917 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-19 16:09:29,917 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 793 transitions. [2018-09-19 16:09:29,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-09-19 16:09:29,922 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:09:29,922 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 16:09:29,922 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:09:29,923 INFO L82 PathProgramCache]: Analyzing trace with hash -1947173955, now seen corresponding path program 1 times [2018-09-19 16:09:29,923 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:09:29,924 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 16:09:29,929 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:09:30,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:09:30,192 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:09:30,288 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 16:09:30,288 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:09:30,308 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:09:30,308 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-19 16:09:30,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-19 16:09:30,311 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-19 16:09:30,311 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-19 16:09:30,311 INFO L87 Difference]: Start difference. First operand 669 states and 793 transitions. Second operand 4 states. [2018-09-19 16:09:30,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:09:30,503 INFO L93 Difference]: Finished difference Result 1233 states and 1453 transitions. [2018-09-19 16:09:30,507 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-19 16:09:30,507 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 66 [2018-09-19 16:09:30,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:09:30,515 INFO L225 Difference]: With dead ends: 1233 [2018-09-19 16:09:30,515 INFO L226 Difference]: Without dead ends: 669 [2018-09-19 16:09:30,518 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-09-19 16:09:30,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2018-09-19 16:09:30,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 669. [2018-09-19 16:09:30,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 669 states. [2018-09-19 16:09:30,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 791 transitions. [2018-09-19 16:09:30,554 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 791 transitions. Word has length 66 [2018-09-19 16:09:30,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:09:30,554 INFO L480 AbstractCegarLoop]: Abstraction has 669 states and 791 transitions. [2018-09-19 16:09:30,555 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-19 16:09:30,555 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 791 transitions. [2018-09-19 16:09:30,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-09-19 16:09:30,560 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:09:30,561 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:09:30,561 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:09:30,561 INFO L82 PathProgramCache]: Analyzing trace with hash 724547759, now seen corresponding path program 1 times [2018-09-19 16:09:30,563 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:09:30,563 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) [2018-09-19 16:09:30,571 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-19 16:09:31,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:09:31,991 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:09:32,152 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 16:09:32,161 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 16:09:32,162 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:09:32,173 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:09:32,202 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 16:09:32,203 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:23 [2018-09-19 16:09:32,283 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 16:09:32,293 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 16:09:32,294 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:09:32,317 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:09:32,370 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 16:09:32,371 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:17 [2018-09-19 16:09:32,600 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 16:09:32,615 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 16:09:32,616 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:09:32,642 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:09:32,701 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 16:09:32,701 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:37, output treesize:33 [2018-09-19 16:09:32,856 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 16:09:32,865 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 16:09:32,865 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:09:32,872 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:09:32,902 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 16:09:32,903 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:42, output treesize:27 [2018-09-19 16:09:33,849 WARN L178 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 49 [2018-09-19 16:09:34,219 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 16:09:34,240 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 16:09:34,241 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:09:34,262 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:09:34,287 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 16:09:34,287 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-19 16:09:34,484 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 16:09:34,489 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 16:09:34,490 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:09:34,494 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:09:34,508 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 16:09:34,508 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-19 16:09:35,467 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 16:09:35,467 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:09:35,500 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:09:35,501 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-09-19 16:09:35,501 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-09-19 16:09:35,502 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-09-19 16:09:35,502 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2018-09-19 16:09:35,503 INFO L87 Difference]: Start difference. First operand 669 states and 791 transitions. Second operand 18 states. [2018-09-19 16:09:37,447 WARN L178 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-09-19 16:09:38,905 WARN L178 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-09-19 16:09:39,353 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2018-09-19 16:09:40,039 WARN L178 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2018-09-19 16:09:40,720 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2018-09-19 16:09:42,243 WARN L178 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2018-09-19 16:09:48,518 WARN L178 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2018-09-19 16:09:49,761 WARN L178 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2018-09-19 16:09:56,265 WARN L178 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-09-19 16:09:57,920 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-19 16:09:58,270 WARN L178 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-09-19 16:10:31,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:10:31,010 INFO L93 Difference]: Finished difference Result 762 states and 902 transitions. [2018-09-19 16:10:31,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-09-19 16:10:31,013 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 129 [2018-09-19 16:10:31,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:10:31,019 INFO L225 Difference]: With dead ends: 762 [2018-09-19 16:10:31,020 INFO L226 Difference]: Without dead ends: 739 [2018-09-19 16:10:31,021 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=165, Invalid=1241, Unknown=0, NotChecked=0, Total=1406 [2018-09-19 16:10:31,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2018-09-19 16:10:31,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 726. [2018-09-19 16:10:31,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 726 states. [2018-09-19 16:10:31,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 865 transitions. [2018-09-19 16:10:31,061 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 865 transitions. Word has length 129 [2018-09-19 16:10:31,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:10:31,062 INFO L480 AbstractCegarLoop]: Abstraction has 726 states and 865 transitions. [2018-09-19 16:10:31,062 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-09-19 16:10:31,062 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 865 transitions. [2018-09-19 16:10:31,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-09-19 16:10:31,067 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:10:31,067 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:10:31,067 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:10:31,068 INFO L82 PathProgramCache]: Analyzing trace with hash 1212153043, now seen corresponding path program 1 times [2018-09-19 16:10:31,068 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:10:31,069 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) [2018-09-19 16:10:31,077 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-09-19 16:10:31,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:10:31,429 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:10:31,708 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 16:10:31,709 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:10:31,726 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:10:31,726 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-19 16:10:31,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-19 16:10:31,727 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-19 16:10:31,727 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-19 16:10:31,728 INFO L87 Difference]: Start difference. First operand 726 states and 865 transitions. Second operand 9 states. [2018-09-19 16:10:36,315 WARN L178 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2018-09-19 16:10:37,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:10:37,512 INFO L93 Difference]: Finished difference Result 1297 states and 1531 transitions. [2018-09-19 16:10:37,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-19 16:10:37,513 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 131 [2018-09-19 16:10:37,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:10:37,520 INFO L225 Difference]: With dead ends: 1297 [2018-09-19 16:10:37,520 INFO L226 Difference]: Without dead ends: 730 [2018-09-19 16:10:37,523 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2018-09-19 16:10:37,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2018-09-19 16:10:37,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 726. [2018-09-19 16:10:37,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 726 states. [2018-09-19 16:10:37,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 864 transitions. [2018-09-19 16:10:37,562 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 864 transitions. Word has length 131 [2018-09-19 16:10:37,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:10:37,563 INFO L480 AbstractCegarLoop]: Abstraction has 726 states and 864 transitions. [2018-09-19 16:10:37,563 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-19 16:10:37,563 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 864 transitions. [2018-09-19 16:10:37,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-09-19 16:10:37,566 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:10:37,566 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:10:37,566 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:10:37,570 INFO L82 PathProgramCache]: Analyzing trace with hash 564097052, now seen corresponding path program 1 times [2018-09-19 16:10:37,571 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:10:37,571 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) [2018-09-19 16:10:37,581 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-09-19 16:10:38,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:10:38,076 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:10:38,249 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 16:10:38,271 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 16:10:38,272 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:10:38,320 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:10:38,442 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 16:10:38,443 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:23 [2018-09-19 16:10:38,589 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 16:10:38,602 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 16:10:38,602 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:10:38,642 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:10:38,752 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 16:10:38,753 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:17 [2018-09-19 16:10:38,990 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 16:10:39,001 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 16:10:39,002 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:10:39,013 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:10:39,056 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 16:10:39,056 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:37, output treesize:33 [2018-09-19 16:10:39,165 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 16:10:39,173 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 16:10:39,174 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:10:39,180 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:10:39,210 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 16:10:39,210 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:42, output treesize:27 [2018-09-19 16:10:40,269 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 16:10:40,278 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 16:10:40,278 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:10:40,284 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:10:40,301 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 16:10:40,302 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-19 16:10:40,485 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 16:10:40,490 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 16:10:40,491 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:10:40,495 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:10:40,508 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 16:10:40,509 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-19 16:10:41,462 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 16:10:41,463 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:10:41,478 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:10:41,479 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-09-19 16:10:41,479 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-09-19 16:10:41,479 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-09-19 16:10:41,480 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2018-09-19 16:10:41,480 INFO L87 Difference]: Start difference. First operand 726 states and 864 transitions. Second operand 18 states. [2018-09-19 16:10:43,105 WARN L178 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2018-09-19 16:10:44,110 WARN L178 SmtUtils]: Spent 566.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-09-19 16:10:45,929 WARN L178 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2018-09-19 16:10:46,731 WARN L178 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2018-09-19 16:10:47,322 WARN L178 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2018-09-19 16:10:48,673 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2018-09-19 16:10:52,692 WARN L178 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2018-09-19 16:10:54,944 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2018-09-19 16:10:59,111 WARN L178 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-09-19 16:10:59,804 WARN L178 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-09-19 16:11:00,863 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-19 16:11:01,627 WARN L178 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2018-09-19 16:11:37,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:11:37,509 INFO L93 Difference]: Finished difference Result 772 states and 913 transitions. [2018-09-19 16:11:37,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-09-19 16:11:37,511 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 132 [2018-09-19 16:11:37,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:11:37,517 INFO L225 Difference]: With dead ends: 772 [2018-09-19 16:11:37,519 INFO L226 Difference]: Without dead ends: 747 [2018-09-19 16:11:37,521 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=165, Invalid=1241, Unknown=0, NotChecked=0, Total=1406 [2018-09-19 16:11:37,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2018-09-19 16:11:37,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 669. [2018-09-19 16:11:37,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 669 states. [2018-09-19 16:11:37,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 789 transitions. [2018-09-19 16:11:37,566 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 789 transitions. Word has length 132 [2018-09-19 16:11:37,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:11:37,567 INFO L480 AbstractCegarLoop]: Abstraction has 669 states and 789 transitions. [2018-09-19 16:11:37,567 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-09-19 16:11:37,567 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 789 transitions. [2018-09-19 16:11:37,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-09-19 16:11:37,569 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:11:37,569 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:11:37,569 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:11:37,570 INFO L82 PathProgramCache]: Analyzing trace with hash -895645421, now seen corresponding path program 1 times [2018-09-19 16:11:37,570 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:11:37,571 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) [2018-09-19 16:11:37,583 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-09-19 16:11:38,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:11:38,952 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:11:39,024 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 16:11:39,030 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 16:11:39,030 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:11:39,036 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:11:39,054 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 16:11:39,054 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-19 16:11:39,100 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 16:11:39,106 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 16:11:39,106 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:11:39,110 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:11:39,122 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 16:11:39,122 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-19 16:11:39,383 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 16:11:39,384 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:11:39,413 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:11:39,413 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-19 16:11:39,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-19 16:11:39,414 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-19 16:11:39,414 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-19 16:11:39,415 INFO L87 Difference]: Start difference. First operand 669 states and 789 transitions. Second operand 9 states. [2018-09-19 16:12:00,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:12:00,518 INFO L93 Difference]: Finished difference Result 794 states and 924 transitions. [2018-09-19 16:12:00,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-19 16:12:00,521 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 131 [2018-09-19 16:12:00,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:12:00,526 INFO L225 Difference]: With dead ends: 794 [2018-09-19 16:12:00,527 INFO L226 Difference]: Without dead ends: 769 [2018-09-19 16:12:00,527 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2018-09-19 16:12:00,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2018-09-19 16:12:00,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 669. [2018-09-19 16:12:00,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 669 states. [2018-09-19 16:12:00,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 787 transitions. [2018-09-19 16:12:00,572 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 787 transitions. Word has length 131 [2018-09-19 16:12:00,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:12:00,572 INFO L480 AbstractCegarLoop]: Abstraction has 669 states and 787 transitions. [2018-09-19 16:12:00,572 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-19 16:12:00,572 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 787 transitions. [2018-09-19 16:12:00,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-09-19 16:12:00,575 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:12:00,575 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:12:00,576 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:12:00,576 INFO L82 PathProgramCache]: Analyzing trace with hash 1322112532, now seen corresponding path program 1 times [2018-09-19 16:12:00,580 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:12:00,580 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) [2018-09-19 16:12:00,586 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-09-19 16:12:01,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:12:02,021 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:12:02,158 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 16:12:02,168 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 16:12:02,168 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:12:02,198 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:12:03,000 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 16:12:03,000 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:26 [2018-09-19 16:12:03,163 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 16:12:03,330 INFO L303 Elim1Store]: Index analysis took 165 ms [2018-09-19 16:12:03,331 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 16:12:03,331 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:12:03,366 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:12:03,508 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 16:12:03,509 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:35, output treesize:20 [2018-09-19 16:12:03,808 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-09-19 16:12:03,854 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 16:12:03,902 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 16:12:03,902 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:12:03,932 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:12:04,342 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 16:12:04,343 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:43, output treesize:39 [2018-09-19 16:12:04,582 WARN L178 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-09-19 16:12:04,612 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 16:12:04,651 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 16:12:04,651 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:12:04,677 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:12:04,771 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 16:12:04,771 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:48, output treesize:33 [2018-09-19 16:12:05,196 WARN L178 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-09-19 16:12:05,467 WARN L178 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-09-19 16:12:05,769 WARN L178 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2018-09-19 16:12:08,289 WARN L797 $PredicateComparison]: unable to prove that (let ((.cse0 (= |c_fmod_double_#res| (let ((.cse2 (fp.mul RNE |c_fmod_double_#in~x| |c_fmod_double_#in~y|))) (fp.div RNE .cse2 .cse2))))) (or (and .cse0 (exists ((|v_q#valueAsBitvector_62| (_ BitVec 64))) (= |c_fmod_double_#in~x| (fp ((_ extract 63 63) |v_q#valueAsBitvector_62|) ((_ extract 62 52) |v_q#valueAsBitvector_62|) ((_ extract 51 0) |v_q#valueAsBitvector_62|)))) (exists ((|v_q#valueAsBitvector_63| (_ BitVec 64)) (fmod_double_~ly~0 (_ BitVec 32))) (and (= (_ bv0 32) (bvor (bvand ((_ extract 63 32) |v_q#valueAsBitvector_63|) (_ bv2147483647 32)) fmod_double_~ly~0)) (= |c_fmod_double_#in~y| (fp ((_ extract 63 63) |v_q#valueAsBitvector_63|) ((_ extract 62 52) |v_q#valueAsBitvector_63|) ((_ extract 51 0) |v_q#valueAsBitvector_63|)))))) (and .cse0 (exists ((v_prenex_10 (_ BitVec 64)) (v_prenex_12 (_ BitVec 32))) (and (= |c_fmod_double_#in~y| (fp ((_ extract 63 63) v_prenex_10) ((_ extract 62 52) v_prenex_10) ((_ extract 51 0) v_prenex_10))) (bvugt (bvor (bvand ((_ extract 63 32) v_prenex_10) (_ bv2147483647 32)) (bvlshr (bvor v_prenex_12 (bvneg v_prenex_12)) (_ bv31 32))) (_ bv2146435072 32)))) (exists ((v_prenex_11 (_ BitVec 64))) (= |c_fmod_double_#in~x| (fp ((_ extract 63 63) v_prenex_11) ((_ extract 62 52) v_prenex_11) ((_ extract 51 0) v_prenex_11))))) (and (exists ((v_prenex_7 (_ BitVec 64))) (= |c_fmod_double_#in~y| (fp ((_ extract 63 63) v_prenex_7) ((_ extract 62 52) v_prenex_7) ((_ extract 51 0) v_prenex_7)))) .cse0 (exists ((v_prenex_8 (_ BitVec 64))) (and (= |c_fmod_double_#in~x| (fp ((_ extract 63 63) v_prenex_8) ((_ extract 62 52) v_prenex_8) ((_ extract 51 0) v_prenex_8))) (bvsge (let ((.cse1 ((_ extract 63 32) v_prenex_8))) (bvxor .cse1 (bvand .cse1 (_ bv2147483648 32)))) (_ bv2146435072 32))))))) is different from false [2018-09-19 16:12:10,725 WARN L819 $PredicateComparison]: unable to prove that (let ((.cse0 (= |c_fmod_double_#res| (let ((.cse2 (fp.mul RNE |c_fmod_double_#in~x| |c_fmod_double_#in~y|))) (fp.div RNE .cse2 .cse2))))) (or (and .cse0 (exists ((|v_q#valueAsBitvector_62| (_ BitVec 64))) (= |c_fmod_double_#in~x| (fp ((_ extract 63 63) |v_q#valueAsBitvector_62|) ((_ extract 62 52) |v_q#valueAsBitvector_62|) ((_ extract 51 0) |v_q#valueAsBitvector_62|)))) (exists ((|v_q#valueAsBitvector_63| (_ BitVec 64)) (fmod_double_~ly~0 (_ BitVec 32))) (and (= (_ bv0 32) (bvor (bvand ((_ extract 63 32) |v_q#valueAsBitvector_63|) (_ bv2147483647 32)) fmod_double_~ly~0)) (= |c_fmod_double_#in~y| (fp ((_ extract 63 63) |v_q#valueAsBitvector_63|) ((_ extract 62 52) |v_q#valueAsBitvector_63|) ((_ extract 51 0) |v_q#valueAsBitvector_63|)))))) (and .cse0 (exists ((v_prenex_10 (_ BitVec 64)) (v_prenex_12 (_ BitVec 32))) (and (= |c_fmod_double_#in~y| (fp ((_ extract 63 63) v_prenex_10) ((_ extract 62 52) v_prenex_10) ((_ extract 51 0) v_prenex_10))) (bvugt (bvor (bvand ((_ extract 63 32) v_prenex_10) (_ bv2147483647 32)) (bvlshr (bvor v_prenex_12 (bvneg v_prenex_12)) (_ bv31 32))) (_ bv2146435072 32)))) (exists ((v_prenex_11 (_ BitVec 64))) (= |c_fmod_double_#in~x| (fp ((_ extract 63 63) v_prenex_11) ((_ extract 62 52) v_prenex_11) ((_ extract 51 0) v_prenex_11))))) (and (exists ((v_prenex_7 (_ BitVec 64))) (= |c_fmod_double_#in~y| (fp ((_ extract 63 63) v_prenex_7) ((_ extract 62 52) v_prenex_7) ((_ extract 51 0) v_prenex_7)))) .cse0 (exists ((v_prenex_8 (_ BitVec 64))) (and (= |c_fmod_double_#in~x| (fp ((_ extract 63 63) v_prenex_8) ((_ extract 62 52) v_prenex_8) ((_ extract 51 0) v_prenex_8))) (bvsge (let ((.cse1 ((_ extract 63 32) v_prenex_8))) (bvxor .cse1 (bvand .cse1 (_ bv2147483648 32)))) (_ bv2146435072 32))))))) is different from true [2018-09-19 16:12:50,432 WARN L178 SmtUtils]: Spent 2.54 s on a formula simplification that was a NOOP. DAG size: 22 [2018-09-19 16:13:01,580 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 16:13:01,580 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:13:01,607 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:13:01,607 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-09-19 16:13:01,608 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-09-19 16:13:01,608 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-09-19 16:13:01,608 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=164, Unknown=11, NotChecked=26, Total=240 [2018-09-19 16:13:01,609 INFO L87 Difference]: Start difference. First operand 669 states and 787 transitions. Second operand 16 states. Received shutdown request... [2018-09-19 16:13:02,641 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-19 16:13:02,641 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 16:13:02,645 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 16:13:02,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 04:13:02 BoogieIcfgContainer [2018-09-19 16:13:02,645 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 16:13:02,646 INFO L168 Benchmark]: Toolchain (without parser) took 276003.29 ms. Allocated memory was 1.5 GB in the beginning and 2.6 GB in the end (delta: 1.1 GB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -869.9 MB). Peak memory consumption was 190.7 MB. Max. memory is 7.1 GB. [2018-09-19 16:13:02,647 INFO L168 Benchmark]: CDTParser took 0.25 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 16:13:02,648 INFO L168 Benchmark]: CACSL2BoogieTranslator took 816.67 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-19 16:13:02,648 INFO L168 Benchmark]: Boogie Preprocessor took 283.13 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 720.4 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -811.3 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2018-09-19 16:13:02,649 INFO L168 Benchmark]: RCFGBuilder took 61494.90 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 163.7 MB). Peak memory consumption was 163.7 MB. Max. memory is 7.1 GB. [2018-09-19 16:13:02,650 INFO L168 Benchmark]: TraceAbstraction took 213399.97 ms. Allocated memory was 2.2 GB in the beginning and 2.6 GB in the end (delta: 340.3 MB). Free memory was 2.0 GB in the beginning and 2.3 GB in the end (delta: -264.6 MB). Peak memory consumption was 75.7 MB. Max. memory is 7.1 GB. [2018-09-19 16:13:02,654 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 816.67 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 283.13 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 720.4 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -811.3 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 61494.90 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 163.7 MB). Peak memory consumption was 163.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 213399.97 ms. Allocated memory was 2.2 GB in the beginning and 2.6 GB in the end (delta: 340.3 MB). Free memory was 2.0 GB in the beginning and 2.3 GB in the end (delta: -264.6 MB). Peak memory consumption was 75.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 818]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 818). Cancelled while BasicCegarLoop was constructing difference of abstraction (669states) and FLOYD_HOARE automaton (currently 3 states, 16 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 16 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 12 procedures, 674 locations, 1 error locations. TIMEOUT Result, 213.3s OverallTime, 7 OverallIterations, 1 TraceHistogramMax, 139.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4729 SDtfs, 2541 SDslu, 33286 SDs, 0 SdLazy, 4054 SolverSat, 79 SolverUnsat, 12 SolverUnknown, 0 SolverNotchecked, 115.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 794 GetRequests, 678 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 71.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=726occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 195 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 4.6s SatisfiabilityAnalysisTime, 67.9s InterpolantComputationTime, 747 NumberOfCodeBlocks, 747 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 740 ConstructedInterpolants, 166 QuantifiedInterpolants, 640532 SizeOfPredicates, 78 NumberOfNonLiveVariables, 2271 ConjunctsInSsa, 93 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown