/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-012.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 11:43:20,666 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 11:43:20,671 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 11:43:20,729 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 11:43:20,730 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 11:43:20,735 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 11:43:20,739 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 11:43:20,744 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 11:43:20,748 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 11:43:20,754 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 11:43:20,758 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 11:43:20,760 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 11:43:20,760 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 11:43:20,763 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 11:43:20,766 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 11:43:20,767 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 11:43:20,769 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 11:43:20,772 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 11:43:20,798 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 11:43:20,805 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 11:43:20,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 11:43:20,817 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 11:43:20,822 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 11:43:20,823 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 11:43:20,829 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 11:43:20,830 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 11:43:20,830 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 11:43:20,831 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 11:43:20,832 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 11:43:20,835 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 11:43:20,836 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 11:43:20,837 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 11:43:20,838 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 11:43:20,839 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 11:43:20,840 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 11:43:20,840 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 11:43:20,841 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 11:43:20,841 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 11:43:20,842 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 11:43:20,843 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 11:43:20,843 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 11:43:20,844 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 11:43:20,871 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 11:43:20,871 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 11:43:20,873 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 11:43:20,873 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 11:43:20,873 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 11:43:20,873 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 11:43:20,874 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 11:43:20,874 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 11:43:20,874 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 11:43:20,874 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 11:43:20,874 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 11:43:20,875 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 11:43:20,875 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 11:43:20,875 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 11:43:20,875 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 11:43:20,875 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 11:43:20,876 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 11:43:20,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 11:43:20,876 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 11:43:20,876 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 11:43:20,877 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 11:43:20,877 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 11:43:20,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 11:43:20,877 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 11:43:20,877 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 11:43:20,878 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 11:43:21,299 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 11:43:21,330 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 11:43:21,334 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 11:43:21,336 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 11:43:21,337 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 11:43:21,338 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/xcsp/AllInterval-012.c [2020-12-23 11:43:21,417 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/75920e2b2/e302daad76964fb8bdaedd56f48cb2bc/FLAG2b00234ff [2020-12-23 11:43:21,997 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 11:43:21,998 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/xcsp/AllInterval-012.c [2020-12-23 11:43:22,017 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/75920e2b2/e302daad76964fb8bdaedd56f48cb2bc/FLAG2b00234ff [2020-12-23 11:43:22,317 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/75920e2b2/e302daad76964fb8bdaedd56f48cb2bc [2020-12-23 11:43:22,320 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 11:43:22,323 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 11:43:22,324 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 11:43:22,325 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 11:43:22,333 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 11:43:22,334 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 11:43:22" (1/1) ... [2020-12-23 11:43:22,336 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@423fee39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:43:22, skipping insertion in model container [2020-12-23 11:43:22,336 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 11:43:22" (1/1) ... [2020-12-23 11:43:22,346 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 11:43:22,377 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[~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 11:43:22,611 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-012.c[7456,7469] [2020-12-23 11:43:22,632 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 11:43:22,644 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[~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 11:43:22,709 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-012.c[7456,7469] [2020-12-23 11:43:22,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 11:43:22,746 INFO L208 MainTranslator]: Completed translation [2020-12-23 11:43:22,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:43:22 WrapperNode [2020-12-23 11:43:22,746 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 11:43:22,753 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 11:43:22,753 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 11:43:22,753 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 11:43:22,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:43:22" (1/1) ... [2020-12-23 11:43:22,795 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:43:22" (1/1) ... [2020-12-23 11:43:22,953 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 11:43:22,956 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 11:43:22,971 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 11:43:22,971 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 11:43:22,982 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:43:22" (1/1) ... [2020-12-23 11:43:22,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:43:22" (1/1) ... [2020-12-23 11:43:23,011 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:43:22" (1/1) ... [2020-12-23 11:43:23,011 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:43:22" (1/1) ... [2020-12-23 11:43:23,064 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:43:22" (1/1) ... [2020-12-23 11:43:23,106 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:43:22" (1/1) ... [2020-12-23 11:43:23,114 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:43:22" (1/1) ... [2020-12-23 11:43:23,136 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 11:43:23,137 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 11:43:23,138 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 11:43:23,138 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 11:43:23,142 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:43:22" (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 11:43:23,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 11:43:23,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 11:43:23,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 11:43:23,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 11:43:24,802 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 11:43:24,802 INFO L299 CfgBuilder]: Removed 360 assume(true) statements. [2020-12-23 11:43:24,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 11:43:24 BoogieIcfgContainer [2020-12-23 11:43:24,805 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 11:43:24,807 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 11:43:24,807 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 11:43:24,811 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 11:43:24,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 11:43:22" (1/3) ... [2020-12-23 11:43:24,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12492417 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 11:43:24, skipping insertion in model container [2020-12-23 11:43:24,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:43:22" (2/3) ... [2020-12-23 11:43:24,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12492417 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 11:43:24, skipping insertion in model container [2020-12-23 11:43:24,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 11:43:24" (3/3) ... [2020-12-23 11:43:24,815 INFO L111 eAbstractionObserver]: Analyzing ICFG AllInterval-012.c [2020-12-23 11:43:24,822 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 11:43:24,828 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 11:43:24,849 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 11:43:24,880 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 11:43:24,881 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 11:43:24,881 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 11:43:24,881 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 11:43:24,881 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 11:43:24,881 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 11:43:24,882 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 11:43:24,882 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 11:43:24,907 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states. [2020-12-23 11:43:24,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2020-12-23 11:43:24,930 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:43:24,932 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] [2020-12-23 11:43:24,932 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:43:24,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:43:24,939 INFO L82 PathProgramCache]: Analyzing trace with hash -1954349207, now seen corresponding path program 1 times [2020-12-23 11:43:24,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:43:24,950 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611749886] [2020-12-23 11:43:24,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:43:25,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:43:25,512 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 11:43:25,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611749886] [2020-12-23 11:43:25,515 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:43:25,515 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 11:43:25,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440375119] [2020-12-23 11:43:25,525 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-23 11:43:25,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:43:25,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-23 11:43:25,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 11:43:25,549 INFO L87 Difference]: Start difference. First operand 384 states. Second operand 2 states. [2020-12-23 11:43:25,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:43:25,600 INFO L93 Difference]: Finished difference Result 762 states and 1138 transitions. [2020-12-23 11:43:25,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-23 11:43:25,602 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 380 [2020-12-23 11:43:25,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:43:25,618 INFO L225 Difference]: With dead ends: 762 [2020-12-23 11:43:25,618 INFO L226 Difference]: Without dead ends: 381 [2020-12-23 11:43:25,624 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 11:43:25,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2020-12-23 11:43:25,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2020-12-23 11:43:25,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2020-12-23 11:43:25,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 391 transitions. [2020-12-23 11:43:25,707 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 391 transitions. Word has length 380 [2020-12-23 11:43:25,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:43:25,708 INFO L481 AbstractCegarLoop]: Abstraction has 381 states and 391 transitions. [2020-12-23 11:43:25,708 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-23 11:43:25,708 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 391 transitions. [2020-12-23 11:43:25,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2020-12-23 11:43:25,716 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:43:25,716 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] [2020-12-23 11:43:25,717 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 11:43:25,717 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:43:25,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:43:25,718 INFO L82 PathProgramCache]: Analyzing trace with hash 1777862321, now seen corresponding path program 1 times [2020-12-23 11:43:25,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:43:25,719 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834237442] [2020-12-23 11:43:25,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:43:29,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:44:08,340 WARN L197 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 56 [2020-12-23 11:44:08,482 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 29 [2020-12-23 11:44:08,704 WARN L197 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 61 [2020-12-23 11:44:08,835 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 32 [2020-12-23 11:44:09,016 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 94 [2020-12-23 11:44:09,328 WARN L197 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 56 [2020-12-23 11:44:09,491 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 89 [2020-12-23 11:44:09,778 WARN L197 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 51 [2020-12-23 11:44:09,903 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 89 [2020-12-23 11:44:10,062 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 303 DAG size of output: 109 [2020-12-23 11:44:10,455 WARN L197 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 53 [2020-12-23 11:44:10,638 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 340 DAG size of output: 156 [2020-12-23 11:44:11,159 WARN L197 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 78 [2020-12-23 11:44:11,301 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 335 DAG size of output: 151 [2020-12-23 11:44:11,819 WARN L197 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 73 [2020-12-23 11:44:12,015 WARN L197 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 450 DAG size of output: 214 [2020-12-23 11:44:12,705 WARN L197 SmtUtils]: Spent 587.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 83 [2020-12-23 11:44:12,859 WARN L197 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 445 DAG size of output: 210 [2020-12-23 11:44:13,553 WARN L197 SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 78 [2020-12-23 11:44:13,779 WARN L197 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 452 DAG size of output: 222 [2020-12-23 11:44:14,614 WARN L197 SmtUtils]: Spent 708.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 104 [2020-12-23 11:44:14,843 WARN L197 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 448 DAG size of output: 218 [2020-12-23 11:44:15,674 WARN L197 SmtUtils]: Spent 679.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 100 [2020-12-23 11:44:15,932 WARN L197 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 627 DAG size of output: 381 [2020-12-23 11:44:18,653 WARN L197 SmtUtils]: Spent 2.45 s on a formula simplification. DAG size of input: 381 DAG size of output: 196 [2020-12-23 11:44:18,871 WARN L197 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 622 DAG size of output: 377 [2020-12-23 11:44:21,437 WARN L197 SmtUtils]: Spent 2.35 s on a formula simplification. DAG size of input: 377 DAG size of output: 192 [2020-12-23 11:44:21,667 WARN L197 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 737 DAG size of output: 433 [2020-12-23 11:44:24,896 WARN L197 SmtUtils]: Spent 2.99 s on a formula simplification. DAG size of input: 433 DAG size of output: 251 [2020-12-23 11:44:25,124 WARN L197 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 896 DAG size of output: 653 [2020-12-23 11:44:32,833 WARN L197 SmtUtils]: Spent 7.38 s on a formula simplification. DAG size of input: 653 DAG size of output: 444 [2020-12-23 11:44:33,059 WARN L197 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 891 DAG size of output: 649 [2020-12-23 11:44:40,882 WARN L197 SmtUtils]: Spent 7.45 s on a formula simplification. DAG size of input: 649 DAG size of output: 440 [2020-12-23 11:44:41,155 WARN L197 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 1203 DAG size of output: 825 [2020-12-23 11:44:53,586 WARN L197 SmtUtils]: Spent 11.93 s on a formula simplification. DAG size of input: 825 DAG size of output: 562 [2020-12-23 11:44:53,920 WARN L197 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 1383 DAG size of output: 946 [2020-12-23 11:45:15,164 WARN L197 SmtUtils]: Spent 20.58 s on a formula simplification. DAG size of input: 946 DAG size of output: 865 [2020-12-23 11:45:15,594 WARN L197 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 1550 DAG size of output: 1079 [2020-12-23 11:45:34,318 WARN L197 SmtUtils]: Spent 18.05 s on a formula simplification. DAG size of input: 1079 DAG size of output: 1032 [2020-12-23 11:45:34,700 WARN L197 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 1545 DAG size of output: 1075 [2020-12-23 11:45:53,815 WARN L197 SmtUtils]: Spent 18.36 s on a formula simplification. DAG size of input: 1075 DAG size of output: 1028 [2020-12-23 11:45:54,208 WARN L197 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 1612 DAG size of output: 1138 [2020-12-23 11:46:14,704 WARN L197 SmtUtils]: Spent 19.72 s on a formula simplification. DAG size of input: 1138 DAG size of output: 1095 [2020-12-23 11:46:15,076 WARN L197 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 1608 DAG size of output: 1134 [2020-12-23 11:46:35,672 WARN L197 SmtUtils]: Spent 19.66 s on a formula simplification. DAG size of input: 1134 DAG size of output: 1091 [2020-12-23 11:46:36,044 WARN L197 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 1619 DAG size of output: 1141 [2020-12-23 11:46:56,137 WARN L197 SmtUtils]: Spent 19.27 s on a formula simplification. DAG size of input: 1141 DAG size of output: 1098 [2020-12-23 11:46:56,492 WARN L197 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 1615 DAG size of output: 1137 [2020-12-23 11:47:16,906 WARN L197 SmtUtils]: Spent 19.30 s on a formula simplification. DAG size of input: 1137 DAG size of output: 1094 [2020-12-23 11:47:17,275 WARN L197 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 1629 DAG size of output: 1148