/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/xcsp/AllInterval-017.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 11:44:46,592 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 11:44:46,595 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 11:44:46,655 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 11:44:46,656 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 11:44:46,659 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 11:44:46,664 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 11:44:46,669 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 11:44:46,673 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 11:44:46,679 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 11:44:46,683 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 11:44:46,685 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 11:44:46,685 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 11:44:46,689 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 11:44:46,691 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 11:44:46,693 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 11:44:46,694 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 11:44:46,697 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 11:44:46,722 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 11:44:46,729 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 11:44:46,731 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 11:44:46,733 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 11:44:46,735 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 11:44:46,738 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 11:44:46,746 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 11:44:46,747 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 11:44:46,747 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 11:44:46,749 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 11:44:46,750 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 11:44:46,751 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 11:44:46,751 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 11:44:46,753 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 11:44:46,755 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 11:44:46,756 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 11:44:46,757 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 11:44:46,757 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 11:44:46,758 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 11:44:46,765 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 11:44:46,765 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 11:44:46,766 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 11:44:46,767 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 11:44:46,768 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 11:44:46,816 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 11:44:46,817 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 11:44:46,822 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 11:44:46,822 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 11:44:46,823 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 11:44:46,823 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 11:44:46,823 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 11:44:46,823 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 11:44:46,824 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 11:44:46,824 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 11:44:46,825 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 11:44:46,826 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 11:44:46,826 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 11:44:46,826 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 11:44:46,826 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 11:44:46,827 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 11:44:46,827 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 11:44:46,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 11:44:46,827 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 11:44:46,828 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 11:44:46,828 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 11:44:46,828 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 11:44:46,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 11:44:46,828 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 11:44:46,829 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 11:44:46,829 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 11:44:47,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 11:44:47,303 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 11:44:47,306 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 11:44:47,308 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 11:44:47,308 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 11:44:47,309 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/xcsp/AllInterval-017.c [2020-12-23 11:44:47,384 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/28a63ef60/65c999a1d3eb448fb9ce4bab0d77fc75/FLAG72e482594 [2020-12-23 11:44:48,045 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 11:44:48,046 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/xcsp/AllInterval-017.c [2020-12-23 11:44:48,064 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/28a63ef60/65c999a1d3eb448fb9ce4bab0d77fc75/FLAG72e482594 [2020-12-23 11:44:48,327 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/28a63ef60/65c999a1d3eb448fb9ce4bab0d77fc75 [2020-12-23 11:44:48,330 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 11:44:48,332 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 11:44:48,334 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 11:44:48,334 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 11:44:48,343 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 11:44:48,344 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 11:44:48" (1/1) ... [2020-12-23 11:44:48,346 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f397963 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:44:48, skipping insertion in model container [2020-12-23 11:44:48,346 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 11:44:48" (1/1) ... [2020-12-23 11:44:48,355 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 11:44:48,393 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: VariableLHS[~var0~0,] left hand side expression in assignment: lhs: VariableLHS[~var1~0,] left hand side expression in assignment: lhs: VariableLHS[~var2~0,] left hand side expression in assignment: lhs: VariableLHS[~var3~0,] left hand side expression in assignment: lhs: VariableLHS[~var4~0,] left hand side expression in assignment: lhs: VariableLHS[~var5~0,] left hand side expression in assignment: lhs: VariableLHS[~var6~0,] left hand side expression in assignment: lhs: VariableLHS[~var7~0,] left hand side expression in assignment: lhs: VariableLHS[~var8~0,] left hand side expression in assignment: lhs: VariableLHS[~var9~0,] left hand side expression in assignment: lhs: VariableLHS[~var10~0,] left hand side expression in assignment: lhs: VariableLHS[~var11~0,] left hand side expression in assignment: lhs: VariableLHS[~var12~0,] left hand side expression in assignment: lhs: VariableLHS[~var13~0,] left hand side expression in assignment: lhs: VariableLHS[~var14~0,] left hand side expression in assignment: lhs: VariableLHS[~var15~0,] left hand side expression in assignment: lhs: VariableLHS[~var16~0,] left hand side expression in assignment: lhs: VariableLHS[~var17~0,] left hand side expression in assignment: lhs: VariableLHS[~var18~0,] left hand side expression in assignment: lhs: VariableLHS[~var19~0,] left hand side expression in assignment: lhs: VariableLHS[~var20~0,] left hand side expression in assignment: lhs: VariableLHS[~var21~0,] left hand side expression in assignment: lhs: VariableLHS[~var22~0,] left hand side expression in assignment: lhs: VariableLHS[~var23~0,] left hand side expression in assignment: lhs: VariableLHS[~var24~0,] left hand side expression in assignment: lhs: VariableLHS[~var25~0,] left hand side expression in assignment: lhs: VariableLHS[~var26~0,] left hand side expression in assignment: lhs: VariableLHS[~var27~0,] left hand side expression in assignment: lhs: VariableLHS[~var28~0,] left hand side expression in assignment: lhs: VariableLHS[~var29~0,] left hand side expression in assignment: lhs: VariableLHS[~var30~0,] left hand side expression in assignment: lhs: VariableLHS[~var31~0,] left hand side expression in assignment: lhs: VariableLHS[~var32~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] [2020-12-23 11:44:48,689 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/xcsp/AllInterval-017.c[12516,12529] [2020-12-23 11:44:48,703 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 11:44:48,714 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: lhs: VariableLHS[~var0~0,] left hand side expression in assignment: lhs: VariableLHS[~var1~0,] left hand side expression in assignment: lhs: VariableLHS[~var2~0,] left hand side expression in assignment: lhs: VariableLHS[~var3~0,] left hand side expression in assignment: lhs: VariableLHS[~var4~0,] left hand side expression in assignment: lhs: VariableLHS[~var5~0,] left hand side expression in assignment: lhs: VariableLHS[~var6~0,] left hand side expression in assignment: lhs: VariableLHS[~var7~0,] left hand side expression in assignment: lhs: VariableLHS[~var8~0,] left hand side expression in assignment: lhs: VariableLHS[~var9~0,] left hand side expression in assignment: lhs: VariableLHS[~var10~0,] left hand side expression in assignment: lhs: VariableLHS[~var11~0,] left hand side expression in assignment: lhs: VariableLHS[~var12~0,] left hand side expression in assignment: lhs: VariableLHS[~var13~0,] left hand side expression in assignment: lhs: VariableLHS[~var14~0,] left hand side expression in assignment: lhs: VariableLHS[~var15~0,] left hand side expression in assignment: lhs: VariableLHS[~var16~0,] left hand side expression in assignment: lhs: VariableLHS[~var17~0,] left hand side expression in assignment: lhs: VariableLHS[~var18~0,] left hand side expression in assignment: lhs: VariableLHS[~var19~0,] left hand side expression in assignment: lhs: VariableLHS[~var20~0,] left hand side expression in assignment: lhs: VariableLHS[~var21~0,] left hand side expression in assignment: lhs: VariableLHS[~var22~0,] left hand side expression in assignment: lhs: VariableLHS[~var23~0,] left hand side expression in assignment: lhs: VariableLHS[~var24~0,] left hand side expression in assignment: lhs: VariableLHS[~var25~0,] left hand side expression in assignment: lhs: VariableLHS[~var26~0,] left hand side expression in assignment: lhs: VariableLHS[~var27~0,] left hand side expression in assignment: lhs: VariableLHS[~var28~0,] left hand side expression in assignment: lhs: VariableLHS[~var29~0,] left hand side expression in assignment: lhs: VariableLHS[~var30~0,] left hand side expression in assignment: lhs: VariableLHS[~var31~0,] left hand side expression in assignment: lhs: VariableLHS[~var32~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] left hand side expression in assignment: lhs: VariableLHS[~var_for_abs~0,] [2020-12-23 11:44:48,790 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/xcsp/AllInterval-017.c[12516,12529] [2020-12-23 11:44:48,793 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 11:44:48,820 INFO L208 MainTranslator]: Completed translation [2020-12-23 11:44:48,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:44:48 WrapperNode [2020-12-23 11:44:48,821 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 11:44:48,824 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 11:44:48,824 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 11:44:48,824 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 11:44:48,834 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:44:48" (1/1) ... [2020-12-23 11:44:48,875 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:44:48" (1/1) ... [2020-12-23 11:44:49,126 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 11:44:49,130 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 11:44:49,130 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 11:44:49,130 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 11:44:49,142 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:44:48" (1/1) ... [2020-12-23 11:44:49,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:44:48" (1/1) ... [2020-12-23 11:44:49,167 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:44:48" (1/1) ... [2020-12-23 11:44:49,168 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:44:48" (1/1) ... [2020-12-23 11:44:49,202 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:44:48" (1/1) ... [2020-12-23 11:44:49,224 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:44:48" (1/1) ... [2020-12-23 11:44:49,235 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:44:48" (1/1) ... [2020-12-23 11:44:49,256 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 11:44:49,257 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 11:44:49,260 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 11:44:49,260 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 11:44:49,261 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:44:48" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/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 [2020-12-23 11:44:49,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 11:44:49,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 11:44:49,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 11:44:49,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 11:44:51,071 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 11:44:51,071 INFO L299 CfgBuilder]: Removed 680 assume(true) statements. [2020-12-23 11:44:51,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 11:44:51 BoogieIcfgContainer [2020-12-23 11:44:51,074 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 11:44:51,076 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 11:44:51,076 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 11:44:51,083 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 11:44:51,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 11:44:48" (1/3) ... [2020-12-23 11:44:51,084 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11d444f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 11:44:51, skipping insertion in model container [2020-12-23 11:44:51,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:44:48" (2/3) ... [2020-12-23 11:44:51,085 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11d444f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 11:44:51, skipping insertion in model container [2020-12-23 11:44:51,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 11:44:51" (3/3) ... [2020-12-23 11:44:51,087 INFO L111 eAbstractionObserver]: Analyzing ICFG AllInterval-017.c [2020-12-23 11:44:51,094 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 11:44:51,136 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 11:44:51,157 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 11:44:51,209 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 11:44:51,209 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 11:44:51,209 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 11:44:51,209 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 11:44:51,210 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 11:44:51,210 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 11:44:51,210 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 11:44:51,210 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 11:44:51,248 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states. [2020-12-23 11:44:51,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 711 [2020-12-23 11:44:51,312 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:44:51,314 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:44:51,315 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:44:51,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:44:51,322 INFO L82 PathProgramCache]: Analyzing trace with hash -2111150957, now seen corresponding path program 1 times [2020-12-23 11:44:51,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:44:51,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944655884] [2020-12-23 11:44:51,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:44:51,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:44:52,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:44:52,541 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944655884] [2020-12-23 11:44:52,543 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:44:52,543 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 11:44:52,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646835369] [2020-12-23 11:44:52,554 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-23 11:44:52,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:44:52,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-23 11:44:52,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 11:44:52,578 INFO L87 Difference]: Start difference. First operand 714 states. Second operand 2 states. [2020-12-23 11:44:52,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:44:52,665 INFO L93 Difference]: Finished difference Result 1422 states and 2128 transitions. [2020-12-23 11:44:52,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-23 11:44:52,666 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 710 [2020-12-23 11:44:52,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:44:52,696 INFO L225 Difference]: With dead ends: 1422 [2020-12-23 11:44:52,696 INFO L226 Difference]: Without dead ends: 711 [2020-12-23 11:44:52,713 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 11:44:52,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2020-12-23 11:44:52,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2020-12-23 11:44:52,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 711 states. [2020-12-23 11:44:52,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 726 transitions. [2020-12-23 11:44:52,811 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 726 transitions. Word has length 710 [2020-12-23 11:44:52,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:44:52,812 INFO L481 AbstractCegarLoop]: Abstraction has 711 states and 726 transitions. [2020-12-23 11:44:52,812 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-23 11:44:52,813 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 726 transitions. [2020-12-23 11:44:52,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 711 [2020-12-23 11:44:52,836 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:44:52,837 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:44:52,837 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 11:44:52,838 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:44:52,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:44:52,839 INFO L82 PathProgramCache]: Analyzing trace with hash -999214909, now seen corresponding path program 1 times [2020-12-23 11:44:52,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:44:52,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760660854] [2020-12-23 11:44:52,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:45:05,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:46:42,350 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 36 [2020-12-23 11:46:42,639 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2020-12-23 11:46:42,786 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-12-23 11:46:43,549 WARN L197 SmtUtils]: Spent 541.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 67 [2020-12-23 11:46:44,207 WARN L197 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 63 [2020-12-23 11:46:44,334 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 198 [2020-12-23 11:46:45,178 WARN L197 SmtUtils]: Spent 757.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 83 [2020-12-23 11:46:45,296 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 194 [2020-12-23 11:46:46,111 WARN L197 SmtUtils]: Spent 727.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 79 [2020-12-23 11:46:46,845 WARN L197 SmtUtils]: Spent 695.00 ms on a formula simplification. DAG size of input: 406 DAG size of output: 253 [2020-12-23 11:46:48,032 WARN L197 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 251 DAG size of output: 119 [2020-12-23 11:46:48,582 WARN L197 SmtUtils]: Spent 537.00 ms on a formula simplification. DAG size of input: 402 DAG size of output: 249 [2020-12-23 11:46:49,718 WARN L197 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 247 DAG size of output: 115 [2020-12-23 11:46:53,352 WARN L197 SmtUtils]: Spent 3.61 s on a formula simplification. DAG size of input: 800 DAG size of output: 829 [2020-12-23 11:47:00,652 WARN L197 SmtUtils]: Spent 6.87 s on a formula simplification. DAG size of input: 829 DAG size of output: 271 [2020-12-23 11:47:03,933 WARN L197 SmtUtils]: Spent 3.26 s on a formula simplification. DAG size of input: 796 DAG size of output: 825 [2020-12-23 11:47:11,207 WARN L197 SmtUtils]: Spent 6.89 s on a formula simplification. DAG size of input: 825 DAG size of output: 267 [2020-12-23 11:47:14,333 WARN L197 SmtUtils]: Spent 3.10 s on a formula simplification. DAG size of input: 1001 DAG size of output: 1023 [2020-12-23 11:47:25,991 WARN L197 SmtUtils]: Spent 11.14 s on a formula simplification. DAG size of input: 1022 DAG size of output: 397 [2020-12-23 11:47:29,032 WARN L197 SmtUtils]: Spent 3.02 s on a formula simplification. DAG size of input: 996 DAG size of output: 1019 [2020-12-23 11:47:40,820 WARN L197 SmtUtils]: Spent 11.22 s on a formula simplification. DAG size of input: 1018 DAG size of output: 393 [2020-12-23 11:47:47,516 WARN L197 SmtUtils]: Spent 6.67 s on a formula simplification. DAG size of input: 1189 DAG size of output: 1483 [2020-12-23 11:48:09,754 WARN L197 SmtUtils]: Spent 21.43 s on a formula simplification. DAG size of input: 1483 DAG size of output: 594 [2020-12-23 11:48:16,440 WARN L197 SmtUtils]: Spent 6.66 s on a formula simplification. DAG size of input: 1184 DAG size of output: 1479 [2020-12-23 11:48:39,616 WARN L197 SmtUtils]: Spent 22.19 s on a formula simplification. DAG size of input: 1479 DAG size of output: 590