/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-008.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 21:35:17,002 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 21:35:17,005 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 21:35:17,061 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 21:35:17,062 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 21:35:17,066 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 21:35:17,070 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 21:35:17,076 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 21:35:17,079 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 21:35:17,088 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 21:35:17,092 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 21:35:17,094 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 21:35:17,094 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 21:35:17,097 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 21:35:17,099 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 21:35:17,111 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 21:35:17,112 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 21:35:17,113 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 21:35:17,116 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 21:35:17,118 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 21:35:17,120 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 21:35:17,121 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 21:35:17,123 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 21:35:17,124 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 21:35:17,127 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-06 21:35:17,127 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-06 21:35:17,127 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-06 21:35:17,129 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-06 21:35:17,129 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-06 21:35:17,130 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-06 21:35:17,131 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 21:35:17,132 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 21:35:17,132 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 21:35:17,133 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 21:35:17,135 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 21:35:17,135 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 21:35:17,136 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 21:35:17,136 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 21:35:17,137 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 21:35:17,138 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 21:35:17,139 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 21:35:17,140 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-01-06 21:35:17,168 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 21:35:17,168 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 21:35:17,170 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 21:35:17,170 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 21:35:17,170 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 21:35:17,171 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 21:35:17,171 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 21:35:17,171 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 21:35:17,171 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 21:35:17,172 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 21:35:17,172 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 21:35:17,172 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 21:35:17,172 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 21:35:17,173 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 21:35:17,173 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 21:35:17,173 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 21:35:17,173 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 21:35:17,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 21:35:17,174 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 21:35:17,174 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 21:35:17,174 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 21:35:17,174 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 21:35:17,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 21:35:17,175 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 21:35:17,175 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 21:35:17,175 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 21:35:17,582 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 21:35:17,610 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 21:35:17,614 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 21:35:17,615 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 21:35:17,616 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 21:35:17,617 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/xcsp/AllInterval-008.c [2021-01-06 21:35:17,695 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/b02249392/525997c6a4294d6a86baab64a53f2a9a/FLAG7dd9b55dc [2021-01-06 21:35:18,337 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 21:35:18,337 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/xcsp/AllInterval-008.c [2021-01-06 21:35:18,347 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/b02249392/525997c6a4294d6a86baab64a53f2a9a/FLAG7dd9b55dc [2021-01-06 21:35:18,663 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/b02249392/525997c6a4294d6a86baab64a53f2a9a [2021-01-06 21:35:18,667 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 21:35:18,670 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 21:35:18,673 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 21:35:18,673 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 21:35:18,677 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 21:35:18,678 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 09:35:18" (1/1) ... [2021-01-06 21:35:18,681 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7776dc08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:35:18, skipping insertion in model container [2021-01-06 21:35:18,682 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 09:35:18" (1/1) ... [2021-01-06 21:35:18,690 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 21:35:18,734 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[~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,] [2021-01-06 21:35:18,985 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-008.c[4334,4347] [2021-01-06 21:35:19,004 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 21:35:19,023 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[~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,] [2021-01-06 21:35:19,113 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-008.c[4334,4347] [2021-01-06 21:35:19,117 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 21:35:19,147 INFO L208 MainTranslator]: Completed translation [2021-01-06 21:35:19,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:35:19 WrapperNode [2021-01-06 21:35:19,148 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 21:35:19,149 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 21:35:19,150 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 21:35:19,151 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 21:35:19,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:35:19" (1/1) ... [2021-01-06 21:35:19,189 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:35:19" (1/1) ... [2021-01-06 21:35:19,293 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 21:35:19,294 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 21:35:19,294 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 21:35:19,294 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 21:35:19,306 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:35:19" (1/1) ... [2021-01-06 21:35:19,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:35:19" (1/1) ... [2021-01-06 21:35:19,311 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:35:19" (1/1) ... [2021-01-06 21:35:19,311 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:35:19" (1/1) ... [2021-01-06 21:35:19,325 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:35:19" (1/1) ... [2021-01-06 21:35:19,334 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:35:19" (1/1) ... [2021-01-06 21:35:19,339 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:35:19" (1/1) ... [2021-01-06 21:35:19,347 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 21:35:19,348 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 21:35:19,348 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 21:35:19,349 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 21:35:19,349 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:35:19" (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 [2021-01-06 21:35:19,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 21:35:19,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 21:35:19,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 21:35:19,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 21:35:20,303 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 21:35:20,303 INFO L299 CfgBuilder]: Removed 176 assume(true) statements. [2021-01-06 21:35:20,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 09:35:20 BoogieIcfgContainer [2021-01-06 21:35:20,306 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 21:35:20,308 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 21:35:20,308 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 21:35:20,312 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 21:35:20,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 09:35:18" (1/3) ... [2021-01-06 21:35:20,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e39e154 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 09:35:20, skipping insertion in model container [2021-01-06 21:35:20,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:35:19" (2/3) ... [2021-01-06 21:35:20,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e39e154 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 09:35:20, skipping insertion in model container [2021-01-06 21:35:20,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 09:35:20" (3/3) ... [2021-01-06 21:35:20,318 INFO L111 eAbstractionObserver]: Analyzing ICFG AllInterval-008.c [2021-01-06 21:35:20,325 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 21:35:20,331 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 21:35:20,352 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-01-06 21:35:20,388 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 21:35:20,388 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 21:35:20,389 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 21:35:20,389 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 21:35:20,390 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 21:35:20,390 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 21:35:20,390 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 21:35:20,391 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 21:35:20,422 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states. [2021-01-06 21:35:20,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-01-06 21:35:20,437 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:35:20,438 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] [2021-01-06 21:35:20,439 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:35:20,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:35:20,446 INFO L82 PathProgramCache]: Analyzing trace with hash -23571455, now seen corresponding path program 1 times [2021-01-06 21:35:20,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:35:20,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045198925] [2021-01-06 21:35:20,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:35:20,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:35:20,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 21:35:20,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045198925] [2021-01-06 21:35:20,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:35:20,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 21:35:20,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254814056] [2021-01-06 21:35:20,959 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-06 21:35:20,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:35:20,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-06 21:35:20,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-06 21:35:20,978 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 2 states. [2021-01-06 21:35:21,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:35:21,022 INFO L93 Difference]: Finished difference Result 378 states and 562 transitions. [2021-01-06 21:35:21,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-06 21:35:21,023 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 188 [2021-01-06 21:35:21,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:35:21,037 INFO L225 Difference]: With dead ends: 378 [2021-01-06 21:35:21,037 INFO L226 Difference]: Without dead ends: 189 [2021-01-06 21:35:21,042 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 [2021-01-06 21:35:21,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-01-06 21:35:21,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2021-01-06 21:35:21,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2021-01-06 21:35:21,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 195 transitions. [2021-01-06 21:35:21,095 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 195 transitions. Word has length 188 [2021-01-06 21:35:21,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:35:21,096 INFO L481 AbstractCegarLoop]: Abstraction has 189 states and 195 transitions. [2021-01-06 21:35:21,096 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-06 21:35:21,096 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 195 transitions. [2021-01-06 21:35:21,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-01-06 21:35:21,101 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:35:21,101 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] [2021-01-06 21:35:21,101 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 21:35:21,102 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:35:21,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:35:21,103 INFO L82 PathProgramCache]: Analyzing trace with hash -4989719, now seen corresponding path program 1 times [2021-01-06 21:35:21,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:35:21,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922881327] [2021-01-06 21:35:21,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:35:21,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:35:23,095 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 29 [2021-01-06 21:35:23,246 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 34 [2021-01-06 21:35:23,544 WARN L197 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2021-01-06 21:35:23,803 WARN L197 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2021-01-06 21:35:24,076 WARN L197 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2021-01-06 21:35:24,382 WARN L197 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2021-01-06 21:35:24,726 WARN L197 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2021-01-06 21:35:25,072 WARN L197 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2021-01-06 21:35:25,486 WARN L197 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2021-01-06 21:35:25,844 WARN L197 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2021-01-06 21:35:26,235 WARN L197 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 76 [2021-01-06 21:35:26,617 WARN L197 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2021-01-06 21:35:26,997 WARN L197 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 74 [2021-01-06 21:35:27,369 WARN L197 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2021-01-06 21:35:27,915 WARN L197 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2021-01-06 21:35:28,478 WARN L197 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 69 [2021-01-06 21:35:29,022 WARN L197 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 72 [2021-01-06 21:35:29,568 WARN L197 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2021-01-06 21:35:30,142 WARN L197 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-01-06 21:35:30,711 WARN L197 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-01-06 21:35:30,941 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-01-06 21:35:31,168 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-01-06 21:35:31,418 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-01-06 21:35:31,649 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-01-06 21:35:31,889 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-01-06 21:35:32,337 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-01-06 21:35:32,568 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-01-06 21:35:34,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 21:35:34,394 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922881327] [2021-01-06 21:35:34,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:35:34,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [48] imperfect sequences [] total 48 [2021-01-06 21:35:34,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552133528] [2021-01-06 21:35:34,396 INFO L461 AbstractCegarLoop]: Interpolant automaton has 48 states [2021-01-06 21:35:34,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:35:34,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-01-06 21:35:34,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=2036, Unknown=0, NotChecked=0, Total=2256 [2021-01-06 21:35:34,400 INFO L87 Difference]: Start difference. First operand 189 states and 195 transitions. Second operand 48 states. [2021-01-06 21:35:35,971 WARN L197 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 52 [2021-01-06 21:35:36,340 WARN L197 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2021-01-06 21:35:37,066 WARN L197 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-01-06 21:35:37,448 WARN L197 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-01-06 21:35:38,279 WARN L197 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2021-01-06 21:35:38,666 WARN L197 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2021-01-06 21:35:39,320 WARN L197 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2021-01-06 21:35:39,767 WARN L197 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69 [2021-01-06 21:35:40,991 WARN L197 SmtUtils]: Spent 947.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 83 [2021-01-06 21:35:41,453 WARN L197 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2021-01-06 21:35:42,660 WARN L197 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2021-01-06 21:35:43,114 WARN L197 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 71 [2021-01-06 21:35:44,102 WARN L197 SmtUtils]: Spent 735.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 84 [2021-01-06 21:35:44,573 WARN L197 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2021-01-06 21:35:45,423 WARN L197 SmtUtils]: Spent 687.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 80 [2021-01-06 21:35:46,046 WARN L197 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69 [2021-01-06 21:35:46,864 WARN L197 SmtUtils]: Spent 663.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-01-06 21:35:47,365 WARN L197 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2021-01-06 21:35:49,540 WARN L197 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 155 DAG size of output: 147 [2021-01-06 21:35:50,475 WARN L197 SmtUtils]: Spent 707.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 108 [2021-01-06 21:35:51,506 WARN L197 SmtUtils]: Spent 887.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 95 [2021-01-06 21:35:53,131 WARN L197 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 146 DAG size of output: 135 [2021-01-06 21:35:55,171 WARN L197 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 169 DAG size of output: 147 [2021-01-06 21:35:56,733 WARN L197 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 155 DAG size of output: 144 [2021-01-06 21:35:58,554 WARN L197 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 167 DAG size of output: 156 [2021-01-06 21:36:00,341 WARN L197 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 165 DAG size of output: 154 [2021-01-06 21:36:02,210 WARN L197 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 174 DAG size of output: 162 [2021-01-06 21:36:04,464 WARN L197 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 205 DAG size of output: 192 [2021-01-06 21:36:06,739 WARN L197 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 204 DAG size of output: 192 [2021-01-06 21:36:08,796 WARN L197 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 184 DAG size of output: 172 [2021-01-06 21:36:10,277 WARN L197 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 139 DAG size of output: 128 [2021-01-06 21:36:12,255 WARN L197 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 182 DAG size of output: 170 [2021-01-06 21:36:13,927 WARN L197 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 158 DAG size of output: 147 [2021-01-06 21:36:15,652 WARN L197 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 165 DAG size of output: 154 [2021-01-06 21:36:17,636 WARN L197 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 180 DAG size of output: 169 [2021-01-06 21:36:19,544 WARN L197 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 174 DAG size of output: 163 [2021-01-06 21:36:21,326 WARN L197 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 164 DAG size of output: 153 [2021-01-06 21:36:23,000 WARN L197 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 147 DAG size of output: 136 [2021-01-06 21:36:24,627 WARN L197 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 150 DAG size of output: 139 [2021-01-06 21:36:26,289 WARN L197 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 154 DAG size of output: 143 [2021-01-06 21:36:28,036 WARN L197 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 156 DAG size of output: 145 [2021-01-06 21:36:30,079 WARN L197 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 179 DAG size of output: 168 [2021-01-06 21:36:31,807 WARN L197 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 153 DAG size of output: 142 [2021-01-06 21:36:33,593 WARN L197 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 156 DAG size of output: 145 [2021-01-06 21:36:35,307 WARN L197 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 159 DAG size of output: 148 [2021-01-06 21:36:37,408 WARN L197 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 182 DAG size of output: 171 [2021-01-06 21:36:39,438 WARN L197 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 176 DAG size of output: 165 [2021-01-06 21:36:41,260 WARN L197 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 159 DAG size of output: 148 [2021-01-06 21:36:41,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:36:41,403 INFO L93 Difference]: Finished difference Result 289 states and 304 transitions. [2021-01-06 21:36:41,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-01-06 21:36:41,404 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 188 [2021-01-06 21:36:41,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:36:41,409 INFO L225 Difference]: With dead ends: 289 [2021-01-06 21:36:41,409 INFO L226 Difference]: Without dead ends: 285 [2021-01-06 21:36:41,417 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1183 ImplicationChecksByTransitivity, 72.7s TimeCoverageRelationStatistics Valid=2690, Invalid=6816, Unknown=0, NotChecked=0, Total=9506 [2021-01-06 21:36:41,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2021-01-06 21:36:41,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 209. [2021-01-06 21:36:41,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2021-01-06 21:36:41,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 219 transitions. [2021-01-06 21:36:41,455 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 219 transitions. Word has length 188 [2021-01-06 21:36:41,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:36:41,456 INFO L481 AbstractCegarLoop]: Abstraction has 209 states and 219 transitions. [2021-01-06 21:36:41,456 INFO L482 AbstractCegarLoop]: Interpolant automaton has 48 states. [2021-01-06 21:36:41,457 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 219 transitions. [2021-01-06 21:36:41,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-01-06 21:36:41,464 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:36:41,464 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] [2021-01-06 21:36:41,464 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 21:36:41,464 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:36:41,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:36:41,466 INFO L82 PathProgramCache]: Analyzing trace with hash -4930137, now seen corresponding path program 1 times [2021-01-06 21:36:41,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:36:41,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24443494] [2021-01-06 21:36:41,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:36:41,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:36:42,752 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 35 [2021-01-06 21:36:42,942 WARN L197 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2021-01-06 21:36:43,135 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2021-01-06 21:36:43,453 WARN L197 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2021-01-06 21:36:43,757 WARN L197 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2021-01-06 21:36:44,106 WARN L197 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2021-01-06 21:36:44,431 WARN L197 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2021-01-06 21:36:44,812 WARN L197 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2021-01-06 21:36:45,165 WARN L197 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-01-06 21:36:45,552 WARN L197 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2021-01-06 21:36:45,938 WARN L197 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-01-06 21:36:46,332 WARN L197 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2021-01-06 21:36:46,702 WARN L197 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 69 [2021-01-06 21:36:47,075 WARN L197 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 72 [2021-01-06 21:36:47,458 WARN L197 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 68 [2021-01-06 21:36:47,876 WARN L197 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2021-01-06 21:36:48,298 WARN L197 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2021-01-06 21:36:48,871 WARN L197 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-01-06 21:36:49,448 WARN L197 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2021-01-06 21:36:49,821 WARN L197 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2021-01-06 21:36:50,183 WARN L197 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2021-01-06 21:36:50,674 WARN L197 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2021-01-06 21:36:51,050 WARN L197 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2021-01-06 21:36:53,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 21:36:53,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24443494] [2021-01-06 21:36:53,227 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:36:53,227 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [46] imperfect sequences [] total 46 [2021-01-06 21:36:53,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220506331] [2021-01-06 21:36:53,228 INFO L461 AbstractCegarLoop]: Interpolant automaton has 46 states [2021-01-06 21:36:53,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:36:53,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-01-06 21:36:53,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=1881, Unknown=0, NotChecked=0, Total=2070 [2021-01-06 21:36:53,230 INFO L87 Difference]: Start difference. First operand 209 states and 219 transitions. Second operand 46 states. [2021-01-06 21:36:54,902 WARN L197 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 38 [2021-01-06 21:36:55,150 WARN L197 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 35 [2021-01-06 21:36:55,714 WARN L197 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 58 [2021-01-06 21:36:56,234 WARN L197 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 55 [2021-01-06 21:36:57,292 WARN L197 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 70 [2021-01-06 21:36:57,919 WARN L197 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 66 [2021-01-06 21:36:59,230 WARN L197 SmtUtils]: Spent 679.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 84 [2021-01-06 21:36:59,998 WARN L197 SmtUtils]: Spent 654.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 80 [2021-01-06 21:37:01,166 WARN L197 SmtUtils]: Spent 897.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 91 [2021-01-06 21:37:01,736 WARN L197 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 82 [2021-01-06 21:37:03,305 WARN L197 SmtUtils]: Spent 753.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 86 [2021-01-06 21:37:03,870 WARN L197 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 80 [2021-01-06 21:37:04,544 WARN L197 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 89 [2021-01-06 21:37:05,109 WARN L197 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2021-01-06 21:37:05,882 WARN L197 SmtUtils]: Spent 632.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 92 [2021-01-06 21:37:06,473 WARN L197 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 85 [2021-01-06 21:37:07,527 WARN L197 SmtUtils]: Spent 839.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 93 [2021-01-06 21:37:08,107 WARN L197 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2021-01-06 21:37:09,229 WARN L197 SmtUtils]: Spent 833.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 127 [2021-01-06 21:37:10,201 WARN L197 SmtUtils]: Spent 750.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 111 [2021-01-06 21:37:11,284 WARN L197 SmtUtils]: Spent 934.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 100 [2021-01-06 21:37:12,721 WARN L197 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 142 DAG size of output: 117 [2021-01-06 21:37:14,473 WARN L197 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 164 DAG size of output: 134 [2021-01-06 21:37:16,062 WARN L197 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 160 DAG size of output: 135 [2021-01-06 21:37:17,767 WARN L197 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 150 DAG size of output: 125 [2021-01-06 21:37:19,419 WARN L197 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 148 DAG size of output: 123 [2021-01-06 21:37:20,755 WARN L197 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 136 DAG size of output: 116 [2021-01-06 21:37:22,163 WARN L197 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 144 DAG size of output: 124 [2021-01-06 21:37:23,711 WARN L197 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 143 DAG size of output: 123 [2021-01-06 21:37:25,062 WARN L197 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 139 DAG size of output: 119 [2021-01-06 21:37:26,586 WARN L197 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 144 DAG size of output: 124 [2021-01-06 21:37:27,803 WARN L197 SmtUtils]: Spent 988.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 106 [2021-01-06 21:37:29,013 WARN L197 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 132 DAG size of output: 112 [2021-01-06 21:37:30,457 WARN L197 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 140 DAG size of output: 120 [2021-01-06 21:37:31,980 WARN L197 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 144 DAG size of output: 124 [2021-01-06 21:37:33,545 WARN L197 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 143 DAG size of output: 123 [2021-01-06 21:37:35,048 WARN L197 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 134 DAG size of output: 114 [2021-01-06 21:37:36,500 WARN L197 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 137 DAG size of output: 117 [2021-01-06 21:37:37,996 WARN L197 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 140 DAG size of output: 120 [2021-01-06 21:37:39,562 WARN L197 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 139 DAG size of output: 119 [2021-01-06 21:37:39,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:37:39,862 INFO L93 Difference]: Finished difference Result 284 states and 299 transitions. [2021-01-06 21:37:39,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-01-06 21:37:39,863 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 188 [2021-01-06 21:37:39,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:37:39,866 INFO L225 Difference]: With dead ends: 284 [2021-01-06 21:37:39,867 INFO L226 Difference]: Without dead ends: 276 [2021-01-06 21:37:39,870 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 973 ImplicationChecksByTransitivity, 51.6s TimeCoverageRelationStatistics Valid=2231, Invalid=5779, Unknown=0, NotChecked=0, Total=8010 [2021-01-06 21:37:39,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2021-01-06 21:37:39,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 205. [2021-01-06 21:37:39,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2021-01-06 21:37:39,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 214 transitions. [2021-01-06 21:37:39,888 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 214 transitions. Word has length 188 [2021-01-06 21:37:39,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:37:39,888 INFO L481 AbstractCegarLoop]: Abstraction has 205 states and 214 transitions. [2021-01-06 21:37:39,889 INFO L482 AbstractCegarLoop]: Interpolant automaton has 46 states. [2021-01-06 21:37:39,889 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 214 transitions. [2021-01-06 21:37:39,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-01-06 21:37:39,894 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:37:39,894 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] [2021-01-06 21:37:39,895 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 21:37:39,895 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:37:39,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:37:39,896 INFO L82 PathProgramCache]: Analyzing trace with hash -814336345, now seen corresponding path program 1 times [2021-01-06 21:37:39,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:37:39,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857100827] [2021-01-06 21:37:39,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:37:40,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:37:41,619 WARN L197 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 41 [2021-01-06 21:37:41,913 WARN L197 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 37 [2021-01-06 21:37:42,466 WARN L197 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 66 [2021-01-06 21:37:42,984 WARN L197 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-01-06 21:37:43,943 WARN L197 SmtUtils]: Spent 909.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2021-01-06 21:37:45,342 WARN L197 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 113 DAG size of output: 102 [2021-01-06 21:37:46,676 WARN L197 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 109 DAG size of output: 98 [2021-01-06 21:37:47,879 WARN L197 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 125 DAG size of output: 110 [2021-01-06 21:37:49,040 WARN L197 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 121 DAG size of output: 106 [2021-01-06 21:37:50,200 WARN L197 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 125 DAG size of output: 111 [2021-01-06 21:37:51,341 WARN L197 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 121 DAG size of output: 107 [2021-01-06 21:37:52,556 WARN L197 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 129 DAG size of output: 112 [2021-01-06 21:37:53,742 WARN L197 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 125 DAG size of output: 108 [2021-01-06 21:37:54,994 WARN L197 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 131 DAG size of output: 113 [2021-01-06 21:37:56,213 WARN L197 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 127 DAG size of output: 109 [2021-01-06 21:37:57,478 WARN L197 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 132 DAG size of output: 115 [2021-01-06 21:37:58,713 WARN L197 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 128 DAG size of output: 111 [2021-01-06 21:38:00,082 WARN L197 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 132 DAG size of output: 119 [2021-01-06 21:38:01,461 WARN L197 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 128 DAG size of output: 115 [2021-01-06 21:38:02,866 WARN L197 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 134 DAG size of output: 121 [2021-01-06 21:38:04,273 WARN L197 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 130 DAG size of output: 117 [2021-01-06 21:38:05,277 WARN L197 SmtUtils]: Spent 823.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 120 [2021-01-06 21:38:06,300 WARN L197 SmtUtils]: Spent 790.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 116 [2021-01-06 21:38:07,667 WARN L197 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 131 DAG size of output: 118 [2021-01-06 21:38:09,078 WARN L197 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 133 DAG size of output: 120 [2021-01-06 21:38:09,711 WARN L197 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 68 [2021-01-06 21:38:10,321 WARN L197 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 66 [2021-01-06 21:38:11,114 WARN L197 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 67 [2021-01-06 21:38:11,910 WARN L197 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 67 [2021-01-06 21:38:12,479 WARN L197 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 43 [2021-01-06 21:38:13,045 WARN L197 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 41 [2021-01-06 21:38:13,493 WARN L197 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 39 [2021-01-06 21:38:13,924 WARN L197 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 36 [2021-01-06 21:38:15,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 21:38:15,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857100827] [2021-01-06 21:38:15,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:38:15,777 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [45] imperfect sequences [] total 45 [2021-01-06 21:38:15,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237258792] [2021-01-06 21:38:15,777 INFO L461 AbstractCegarLoop]: Interpolant automaton has 45 states [2021-01-06 21:38:15,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:38:15,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-01-06 21:38:15,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=1789, Unknown=0, NotChecked=0, Total=1980 [2021-01-06 21:38:15,779 INFO L87 Difference]: Start difference. First operand 205 states and 214 transitions. Second operand 45 states. [2021-01-06 21:38:17,876 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 26 [2021-01-06 21:38:18,138 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 24 [2021-01-06 21:38:18,737 WARN L197 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 41 [2021-01-06 21:38:19,205 WARN L197 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 39 [2021-01-06 21:38:20,350 WARN L197 SmtUtils]: Spent 721.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 65 [2021-01-06 21:38:21,180 WARN L197 SmtUtils]: Spent 668.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 63 [2021-01-06 21:38:24,246 WARN L197 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 164 DAG size of output: 84 [2021-01-06 21:38:25,265 WARN L197 SmtUtils]: Spent 851.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 76 [2021-01-06 21:38:26,807 WARN L197 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 153 DAG size of output: 85 [2021-01-06 21:38:27,866 WARN L197 SmtUtils]: Spent 892.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 80 [2021-01-06 21:38:30,003 WARN L197 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 159 DAG size of output: 92 [2021-01-06 21:38:31,103 WARN L197 SmtUtils]: Spent 930.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 83 [2021-01-06 21:38:32,636 WARN L197 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 161 DAG size of output: 93 [2021-01-06 21:38:33,752 WARN L197 SmtUtils]: Spent 938.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 86 [2021-01-06 21:38:34,980 WARN L197 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 148 DAG size of output: 92 [2021-01-06 21:38:36,209 WARN L197 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 144 DAG size of output: 90 [2021-01-06 21:38:38,019 WARN L197 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 171 DAG size of output: 103 [2021-01-06 21:38:39,468 WARN L197 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 150 DAG size of output: 99 [2021-01-06 21:38:41,158 WARN L197 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 164 DAG size of output: 108 [2021-01-06 21:38:42,612 WARN L197 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 152 DAG size of output: 103 [2021-01-06 21:38:44,686 WARN L197 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 174 DAG size of output: 114 [2021-01-06 21:38:46,297 WARN L197 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 151 DAG size of output: 104 [2021-01-06 21:38:48,453 WARN L197 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 178 DAG size of output: 129 [2021-01-06 21:38:50,650 WARN L197 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 193 DAG size of output: 125 [2021-01-06 21:38:53,310 WARN L197 SmtUtils]: Spent 2.39 s on a formula simplification. DAG size of input: 236 DAG size of output: 155 [2021-01-06 21:38:55,572 WARN L197 SmtUtils]: Spent 2.02 s on a formula simplification. DAG size of input: 219 DAG size of output: 149 [2021-01-06 21:38:57,656 WARN L197 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 189 DAG size of output: 141 [2021-01-06 21:38:59,724 WARN L197 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 187 DAG size of output: 139 [2021-01-06 21:39:02,183 WARN L197 SmtUtils]: Spent 2.20 s on a formula simplification. DAG size of input: 210 DAG size of output: 163 [2021-01-06 21:39:05,123 WARN L197 SmtUtils]: Spent 2.66 s on a formula simplification. DAG size of input: 233 DAG size of output: 186 [2021-01-06 21:39:07,912 WARN L197 SmtUtils]: Spent 2.52 s on a formula simplification. DAG size of input: 232 DAG size of output: 183 [2021-01-06 21:39:10,869 WARN L197 SmtUtils]: Spent 2.59 s on a formula simplification. DAG size of input: 229 DAG size of output: 181 [2021-01-06 21:39:13,767 WARN L197 SmtUtils]: Spent 2.50 s on a formula simplification. DAG size of input: 227 DAG size of output: 177 [2021-01-06 21:39:16,458 WARN L197 SmtUtils]: Spent 2.35 s on a formula simplification. DAG size of input: 224 DAG size of output: 173 [2021-01-06 21:39:19,264 WARN L197 SmtUtils]: Spent 2.52 s on a formula simplification. DAG size of input: 240 DAG size of output: 189 [2021-01-06 21:39:21,898 WARN L197 SmtUtils]: Spent 2.36 s on a formula simplification. DAG size of input: 226 DAG size of output: 173 [2021-01-06 21:39:24,326 WARN L197 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 210 DAG size of output: 160 [2021-01-06 21:39:27,149 WARN L197 SmtUtils]: Spent 2.44 s on a formula simplification. DAG size of input: 229 DAG size of output: 178 [2021-01-06 21:39:29,680 WARN L197 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 204 DAG size of output: 153 [2021-01-06 21:39:31,593 WARN L197 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 227 DAG size of output: 123