/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 11:04:11,246 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 11:04:11,247 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 11:04:11,270 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-05 11:04:11,271 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-05 11:04:11,273 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-05 11:04:11,275 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-05 11:04:11,281 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-05 11:04:11,283 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-05 11:04:11,286 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-05 11:04:11,286 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-05 11:04:11,287 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-05 11:04:11,288 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 11:04:11,289 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 11:04:11,290 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 11:04:11,291 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 11:04:11,292 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 11:04:11,292 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 11:04:11,295 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 11:04:11,299 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 11:04:11,300 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 11:04:11,301 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 11:04:11,301 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 11:04:11,303 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 11:04:11,307 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-05 11:04:11,307 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-05 11:04:11,307 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-05 11:04:11,308 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-05 11:04:11,309 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-05 11:04:11,309 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-05 11:04:11,310 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-05 11:04:11,310 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-05 11:04:11,311 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-05 11:04:11,312 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-05 11:04:11,312 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-05 11:04:11,312 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-05 11:04:11,313 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-05 11:04:11,313 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-05 11:04:11,313 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 11:04:11,313 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 11:04:11,314 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 11:04:11,317 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf [2021-06-05 11:04:11,340 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 11:04:11,341 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 11:04:11,341 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 11:04:11,341 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 11:04:11,343 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 11:04:11,343 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 11:04:11,343 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 11:04:11,343 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 11:04:11,343 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 11:04:11,343 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 11:04:11,344 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 11:04:11,344 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 11:04:11,344 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 11:04:11,344 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 11:04:11,344 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 11:04:11,345 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 11:04:11,345 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 11:04:11,345 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 11:04:11,345 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 11:04:11,345 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 11:04:11,345 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 11:04:11,345 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 11:04:11,345 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 11:04:11,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 11:04:11,346 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 11:04:11,346 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 11:04:11,346 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 11:04:11,346 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 11:04:11,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 11:04:11,346 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 11:04:11,346 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 11:04:11,346 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-06-05 11:04:11,347 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 11:04:11,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 11:04:11,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 11:04:11,602 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 11:04:11,603 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 11:04:11,603 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 11:04:11,603 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i [2021-06-05 11:04:11,652 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d06089184/b1dad44074264fff89b78197932dcfa4/FLAG754a2946b [2021-06-05 11:04:12,131 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 11:04:12,131 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i [2021-06-05 11:04:12,151 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d06089184/b1dad44074264fff89b78197932dcfa4/FLAG754a2946b [2021-06-05 11:04:12,165 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d06089184/b1dad44074264fff89b78197932dcfa4 [2021-06-05 11:04:12,167 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 11:04:12,168 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 11:04:12,172 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 11:04:12,172 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 11:04:12,174 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 11:04:12,175 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 11:04:12" (1/1) ... [2021-06-05 11:04:12,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4db4ea1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:04:12, skipping insertion in model container [2021-06-05 11:04:12,175 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 11:04:12" (1/1) ... [2021-06-05 11:04:12,180 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 11:04:12,232 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 11:04:12,337 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-05 11:04:12,560 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i[39095,39108] [2021-06-05 11:04:12,564 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i[39180,39193] [2021-06-05 11:04:12,564 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i[39232,39245] [2021-06-05 11:04:12,617 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i[49388,49401] [2021-06-05 11:04:12,618 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i[49437,49450] [2021-06-05 11:04:12,620 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i[49565,49578] [2021-06-05 11:04:12,620 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i[49623,49636] [2021-06-05 11:04:12,624 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 11:04:12,631 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 11:04:12,642 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-05 11:04:12,661 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i[39095,39108] [2021-06-05 11:04:12,661 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i[39180,39193] [2021-06-05 11:04:12,662 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i[39232,39245] [2021-06-05 11:04:12,674 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i[49388,49401] [2021-06-05 11:04:12,674 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i[49437,49450] [2021-06-05 11:04:12,677 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i[49565,49578] [2021-06-05 11:04:12,677 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i[49623,49636] [2021-06-05 11:04:12,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 11:04:12,788 INFO L208 MainTranslator]: Completed translation [2021-06-05 11:04:12,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:04:12 WrapperNode [2021-06-05 11:04:12,788 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 11:04:12,789 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 11:04:12,789 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 11:04:12,790 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 11:04:12,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:04:12" (1/1) ... [2021-06-05 11:04:12,815 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:04:12" (1/1) ... [2021-06-05 11:04:12,835 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 11:04:12,835 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 11:04:12,835 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 11:04:12,835 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 11:04:12,840 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:04:12" (1/1) ... [2021-06-05 11:04:12,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:04:12" (1/1) ... [2021-06-05 11:04:12,846 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:04:12" (1/1) ... [2021-06-05 11:04:12,846 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:04:12" (1/1) ... [2021-06-05 11:04:12,853 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:04:12" (1/1) ... [2021-06-05 11:04:12,860 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:04:12" (1/1) ... [2021-06-05 11:04:12,862 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:04:12" (1/1) ... [2021-06-05 11:04:12,864 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 11:04:12,865 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 11:04:12,865 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 11:04:12,865 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 11:04:12,865 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:04:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 11:04:12,912 INFO L130 BoogieDeclarations]: Found specification of procedure reader_two [2021-06-05 11:04:12,913 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_two [2021-06-05 11:04:12,913 INFO L130 BoogieDeclarations]: Found specification of procedure writer_fn [2021-06-05 11:04:12,913 INFO L138 BoogieDeclarations]: Found implementation of procedure writer_fn [2021-06-05 11:04:12,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 11:04:12,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 11:04:12,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-05 11:04:12,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 11:04:12,914 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-06-05 11:04:12,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 11:04:12,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 11:04:12,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 11:04:12,915 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 11:04:13,288 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 11:04:13,288 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2021-06-05 11:04:13,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 11:04:13 BoogieIcfgContainer [2021-06-05 11:04:13,289 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 11:04:13,290 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 11:04:13,290 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 11:04:13,292 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 11:04:13,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 11:04:12" (1/3) ... [2021-06-05 11:04:13,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6add35cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 11:04:13, skipping insertion in model container [2021-06-05 11:04:13,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:04:12" (2/3) ... [2021-06-05 11:04:13,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6add35cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 11:04:13, skipping insertion in model container [2021-06-05 11:04:13,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 11:04:13" (3/3) ... [2021-06-05 11:04:13,293 INFO L111 eAbstractionObserver]: Analyzing ICFG ring_2w1r-1.i [2021-06-05 11:04:13,296 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 11:04:13,296 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 11:04:13,297 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-06-05 11:04:13,297 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 11:04:13,321 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,321 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,321 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,321 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,322 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,322 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,322 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,322 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,322 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,322 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,322 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~r~2.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,322 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~r~2.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,322 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,322 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,322 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~r~2.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,322 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~r~2.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,323 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,323 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,323 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,323 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,323 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,323 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,323 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,323 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,323 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,323 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,324 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,324 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,324 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,324 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,324 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,324 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,324 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,324 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,324 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,324 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,324 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,325 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,325 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,325 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,325 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,325 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,325 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,325 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,325 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,325 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,325 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,325 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,326 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,326 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,326 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,326 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,326 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,326 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,326 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,326 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,326 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,326 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,326 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,327 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,327 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,327 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,327 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,327 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,327 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~r~2.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,327 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~r~2.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,327 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,327 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,327 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~r~2.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,328 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~r~2.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,328 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,328 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,328 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,328 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,328 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,328 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,328 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,328 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,329 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,329 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,329 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,329 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,329 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,329 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,329 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,329 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,329 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,329 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,329 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,330 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,330 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,330 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,330 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,330 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,330 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,330 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,330 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,330 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,330 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,330 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,331 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,331 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,331 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,331 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,331 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,331 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,331 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,331 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,331 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,331 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,331 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,332 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,332 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,332 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,332 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,332 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,332 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,332 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,332 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,332 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~ret24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,332 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,333 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~ret24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,333 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~ret24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,333 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~ret24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,333 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~ret24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,333 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~ret24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,333 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~ret24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,333 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~ret24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,333 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~ret24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,333 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~ret24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,333 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~r~2.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,334 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~r~2.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,334 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_dequeue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,334 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_dequeue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,334 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~r~2.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,334 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~r~2.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,334 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_dequeue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,334 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_dequeue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,334 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,334 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,334 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,334 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,335 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,335 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,335 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,335 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,335 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,335 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,335 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,335 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,335 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,335 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,335 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_dequeue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,335 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_dequeue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,336 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,336 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,336 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_dequeue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,336 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_dequeue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,336 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,336 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,336 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,336 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,336 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,336 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,336 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,337 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,337 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,337 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,337 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,337 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,337 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,337 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,337 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,337 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,337 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,337 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,338 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,338 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,338 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,338 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,338 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,338 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,338 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,338 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,338 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,338 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,338 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,339 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,339 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,339 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,339 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,339 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,339 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,339 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,339 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,339 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,339 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,340 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,340 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,340 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,340 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,340 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~ret25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,340 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,340 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~ret25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,340 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~ret25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,340 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~ret25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,340 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~ret25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,340 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,341 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~ret25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,341 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,341 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~ret25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,341 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~ret25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,341 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,341 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,341 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,341 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,341 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,342 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,342 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,342 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,342 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,342 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,342 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,342 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~mem26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,342 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,342 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,342 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,343 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~mem26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,343 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~mem26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,343 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~pre27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,343 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~mem26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,343 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~pre27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,343 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,343 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~mem26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,343 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,343 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,343 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,343 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~mem26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,343 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,344 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,344 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~mem26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,344 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~mem26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,344 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~pre27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,344 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~pre27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,344 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,344 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,344 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,344 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,344 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,345 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,345 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,345 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,345 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,345 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,345 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,345 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~pre31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,345 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,345 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~pre31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,345 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,345 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,346 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,346 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,346 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,346 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,346 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,346 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,346 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,346 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,346 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,346 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,346 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,347 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,347 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,347 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,347 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~pre31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,347 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~pre31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,347 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,347 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,347 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,347 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,347 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,347 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,348 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,348 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,348 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,348 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,348 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,348 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,348 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,348 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,348 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,348 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,348 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,349 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~pre28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,349 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,349 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~pre28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,349 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,349 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,349 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,349 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,349 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~pre28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,349 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~pre28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,350 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,350 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,350 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,350 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,350 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,350 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,350 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,350 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,350 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,350 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,350 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_~r~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,350 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_~r~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,351 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,351 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,351 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_~r~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,351 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_~r~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,351 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,351 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,351 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,351 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,351 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,351 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,352 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,352 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,352 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,352 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,352 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_#t~nondet20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,352 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_#t~nondet20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,352 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_#t~nondet20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,352 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_#t~nondet20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,352 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_~r~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,353 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,353 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_~r~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,353 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,353 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,353 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,353 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_~r~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,353 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,354 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_~r~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,354 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,354 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,354 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,355 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_ring_enqueue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,356 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,356 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,356 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,356 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,356 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_ring_enqueue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,356 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_ring_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,356 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_ring_enqueue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,356 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,357 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,357 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,361 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,361 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_ring_enqueue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,361 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_ring_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,361 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,361 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,361 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_ring_enqueue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,361 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_ring_enqueue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,362 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,362 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,362 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_ring_enqueue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,362 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_ring_enqueue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,362 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,362 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_ring_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,362 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,363 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_ring_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,363 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_ring_enqueue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,363 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_ring_enqueue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,363 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,363 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_ring_enqueue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,363 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_ring_enqueue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,363 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,363 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_ring_enqueue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,363 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_ring_enqueue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,364 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,364 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_ring_enqueue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,364 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_ring_enqueue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,364 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,364 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_ring_enqueue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,364 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_ring_enqueue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,364 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,364 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_ring_enqueue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,364 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_ring_enqueue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,364 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,379 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_ring_enqueue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,380 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_ring_enqueue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,380 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,380 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_ring_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,380 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_ring_enqueue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,380 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_ring_enqueue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,380 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,380 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_ring_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,380 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,380 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,380 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,380 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,380 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,380 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,381 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,381 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,381 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,381 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,381 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,381 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,381 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,381 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,381 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_ring_enqueue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,381 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_ring_enqueue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,381 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,381 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_ring_enqueue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,381 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_ring_enqueue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,381 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,382 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,382 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,382 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,382 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,382 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_ring_enqueue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,382 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_ring_enqueue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,382 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,382 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_ring_enqueue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,382 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_ring_enqueue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,382 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,382 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,382 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,382 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,382 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_#t~pre19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,383 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,383 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_#t~pre19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,383 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,383 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,383 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,383 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,383 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_#t~pre19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,383 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_#t~pre19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,384 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,385 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,385 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_~#read~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,385 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,385 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~ret25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,385 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~ret24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,385 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,385 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~r~2.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,385 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,385 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~r~2.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,385 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,385 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_dequeue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,385 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~pre28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,385 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,385 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,386 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,386 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,386 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,386 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~pre27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,386 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~mem26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,386 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,386 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,386 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_dequeue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,386 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,386 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,386 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~pre31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,386 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,386 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,386 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,388 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,388 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,388 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,388 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,389 WARN L313 ript$VariableManager]: TermVariabe reader_twoThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,389 WARN L313 ript$VariableManager]: TermVariabe |reader_twoThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,393 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_ring_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,393 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,393 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,393 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_ring_enqueue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,393 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,393 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,393 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_#t~pre19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,393 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_~r~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,393 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,394 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_#t~nondet20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,394 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,394 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,394 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,394 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,394 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_~r~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,394 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,394 WARN L313 ript$VariableManager]: TermVariabe |writer_fnThread1of1ForFork1_ring_enqueue_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,394 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_ring_enqueue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,394 WARN L313 ript$VariableManager]: TermVariabe writer_fnThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:04:13,402 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-05 11:04:13,416 INFO L255 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-06-05 11:04:13,433 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 11:04:13,433 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 11:04:13,433 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 11:04:13,433 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 11:04:13,433 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 11:04:13,433 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 11:04:13,433 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 11:04:13,433 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 11:04:13,446 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 206 places, 218 transitions, 458 flow [2021-06-05 11:04:20,401 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 90905 states, 90900 states have (on average 3.2689108910891087) internal successors, (297144), 90904 states have internal predecessors, (297144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:04:20,642 INFO L276 IsEmpty]: Start isEmpty. Operand has 90905 states, 90900 states have (on average 3.2689108910891087) internal successors, (297144), 90904 states have internal predecessors, (297144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:04:20,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-06-05 11:04:20,778 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:04:20,779 INFO L521 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] [2021-06-05 11:04:20,779 INFO L430 AbstractCegarLoop]: === Iteration 1 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:04:20,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:04:20,783 INFO L82 PathProgramCache]: Analyzing trace with hash -1837467968, now seen corresponding path program 1 times [2021-06-05 11:04:20,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:04:20,788 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406531388] [2021-06-05 11:04:20,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:04:21,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:04:21,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:04:21,474 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:04:21,474 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406531388] [2021-06-05 11:04:21,474 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406531388] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:04:21,474 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:04:21,474 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 11:04:21,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424466296] [2021-06-05 11:04:21,477 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 11:04:21,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:04:21,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 11:04:21,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2021-06-05 11:04:21,583 INFO L87 Difference]: Start difference. First operand has 90905 states, 90900 states have (on average 3.2689108910891087) internal successors, (297144), 90904 states have internal predecessors, (297144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:04:23,029 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2021-06-05 11:04:24,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:04:24,199 INFO L93 Difference]: Finished difference Result 106831 states and 328248 transitions. [2021-06-05 11:04:24,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 11:04:24,201 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-06-05 11:04:24,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:04:24,736 INFO L225 Difference]: With dead ends: 106831 [2021-06-05 11:04:24,736 INFO L226 Difference]: Without dead ends: 95141 [2021-06-05 11:04:24,738 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 1466.2ms TimeCoverageRelationStatistics Valid=452, Invalid=1270, Unknown=0, NotChecked=0, Total=1722 [2021-06-05 11:04:25,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95141 states. [2021-06-05 11:04:26,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95141 to 90545. [2021-06-05 11:04:27,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90545 states, 90541 states have (on average 3.0790028826719387) internal successors, (278776), 90544 states have internal predecessors, (278776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:04:27,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90545 states to 90545 states and 278776 transitions. [2021-06-05 11:04:27,607 INFO L78 Accepts]: Start accepts. Automaton has 90545 states and 278776 transitions. Word has length 80 [2021-06-05 11:04:27,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:04:27,609 INFO L482 AbstractCegarLoop]: Abstraction has 90545 states and 278776 transitions. [2021-06-05 11:04:27,609 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:04:27,609 INFO L276 IsEmpty]: Start isEmpty. Operand 90545 states and 278776 transitions. [2021-06-05 11:04:27,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-06-05 11:04:27,712 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:04:27,713 INFO L521 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] [2021-06-05 11:04:27,713 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 11:04:27,713 INFO L430 AbstractCegarLoop]: === Iteration 2 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:04:27,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:04:27,715 INFO L82 PathProgramCache]: Analyzing trace with hash 1610903129, now seen corresponding path program 1 times [2021-06-05 11:04:27,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:04:27,715 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323421525] [2021-06-05 11:04:27,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:04:27,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:04:28,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:04:28,167 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:04:28,167 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323421525] [2021-06-05 11:04:28,168 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323421525] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:04:28,168 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:04:28,168 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-06-05 11:04:28,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051791903] [2021-06-05 11:04:28,169 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-06-05 11:04:28,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:04:28,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-06-05 11:04:28,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2021-06-05 11:04:28,170 INFO L87 Difference]: Start difference. First operand 90545 states and 278776 transitions. Second operand has 22 states, 22 states have (on average 3.8636363636363638) internal successors, (85), 22 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:04:28,657 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2021-06-05 11:04:31,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:04:31,466 INFO L93 Difference]: Finished difference Result 151978 states and 468066 transitions. [2021-06-05 11:04:31,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 11:04:31,467 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.8636363636363638) internal successors, (85), 22 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-06-05 11:04:31,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:04:31,774 INFO L225 Difference]: With dead ends: 151978 [2021-06-05 11:04:31,774 INFO L226 Difference]: Without dead ends: 151327 [2021-06-05 11:04:31,775 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 1955.5ms TimeCoverageRelationStatistics Valid=526, Invalid=1454, Unknown=0, NotChecked=0, Total=1980 [2021-06-05 11:04:32,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151327 states. [2021-06-05 11:04:34,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151327 to 107881. [2021-06-05 11:04:34,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107881 states, 107877 states have (on average 3.0790808049908693) internal successors, (332162), 107880 states have internal predecessors, (332162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:04:34,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107881 states to 107881 states and 332162 transitions. [2021-06-05 11:04:34,954 INFO L78 Accepts]: Start accepts. Automaton has 107881 states and 332162 transitions. Word has length 85 [2021-06-05 11:04:34,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:04:34,969 INFO L482 AbstractCegarLoop]: Abstraction has 107881 states and 332162 transitions. [2021-06-05 11:04:34,969 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 3.8636363636363638) internal successors, (85), 22 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:04:34,969 INFO L276 IsEmpty]: Start isEmpty. Operand 107881 states and 332162 transitions. [2021-06-05 11:04:35,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-06-05 11:04:35,055 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:04:35,056 INFO L521 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] [2021-06-05 11:04:35,056 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 11:04:35,056 INFO L430 AbstractCegarLoop]: === Iteration 3 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:04:35,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:04:35,056 INFO L82 PathProgramCache]: Analyzing trace with hash 1145054439, now seen corresponding path program 2 times [2021-06-05 11:04:35,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:04:35,056 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865738395] [2021-06-05 11:04:35,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:04:35,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:04:35,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:04:35,473 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:04:35,473 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865738395] [2021-06-05 11:04:35,473 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865738395] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:04:35,473 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:04:35,473 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-06-05 11:04:35,473 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549603008] [2021-06-05 11:04:35,473 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-06-05 11:04:35,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:04:35,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-06-05 11:04:35,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=412, Unknown=0, NotChecked=0, Total=462 [2021-06-05 11:04:35,474 INFO L87 Difference]: Start difference. First operand 107881 states and 332162 transitions. Second operand has 22 states, 22 states have (on average 3.8636363636363638) internal successors, (85), 22 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:04:36,725 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2021-06-05 11:04:37,200 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2021-06-05 11:04:37,836 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2021-06-05 11:04:39,853 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 28 [2021-06-05 11:04:40,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:04:40,653 INFO L93 Difference]: Finished difference Result 220451 states and 679360 transitions. [2021-06-05 11:04:40,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-05 11:04:40,653 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.8636363636363638) internal successors, (85), 22 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-06-05 11:04:40,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:04:41,012 INFO L225 Difference]: With dead ends: 220451 [2021-06-05 11:04:41,012 INFO L226 Difference]: Without dead ends: 219821 [2021-06-05 11:04:41,013 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 627 ImplicationChecksByTransitivity, 3505.1ms TimeCoverageRelationStatistics Valid=1065, Invalid=2717, Unknown=0, NotChecked=0, Total=3782 [2021-06-05 11:04:42,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219821 states. [2021-06-05 11:04:44,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219821 to 107883. [2021-06-05 11:04:44,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107883 states, 107879 states have (on average 3.079060799599551) internal successors, (332166), 107882 states have internal predecessors, (332166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:04:44,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107883 states to 107883 states and 332166 transitions. [2021-06-05 11:04:44,726 INFO L78 Accepts]: Start accepts. Automaton has 107883 states and 332166 transitions. Word has length 85 [2021-06-05 11:04:44,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:04:44,726 INFO L482 AbstractCegarLoop]: Abstraction has 107883 states and 332166 transitions. [2021-06-05 11:04:44,726 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 3.8636363636363638) internal successors, (85), 22 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:04:44,726 INFO L276 IsEmpty]: Start isEmpty. Operand 107883 states and 332166 transitions. [2021-06-05 11:04:44,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-06-05 11:04:44,789 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:04:44,789 INFO L521 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] [2021-06-05 11:04:44,789 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 11:04:44,789 INFO L430 AbstractCegarLoop]: === Iteration 4 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:04:44,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:04:44,790 INFO L82 PathProgramCache]: Analyzing trace with hash 677588919, now seen corresponding path program 3 times [2021-06-05 11:04:44,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:04:44,790 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875608143] [2021-06-05 11:04:44,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:04:44,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:04:45,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:04:45,174 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:04:45,174 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875608143] [2021-06-05 11:04:45,175 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875608143] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:04:45,175 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:04:45,175 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-06-05 11:04:45,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151877317] [2021-06-05 11:04:45,175 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-06-05 11:04:45,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:04:45,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-06-05 11:04:45,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=412, Unknown=0, NotChecked=0, Total=462 [2021-06-05 11:04:45,176 INFO L87 Difference]: Start difference. First operand 107883 states and 332166 transitions. Second operand has 22 states, 22 states have (on average 3.8636363636363638) internal successors, (85), 22 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:04:47,104 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2021-06-05 11:04:47,686 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2021-06-05 11:04:49,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:04:49,165 INFO L93 Difference]: Finished difference Result 200099 states and 616820 transitions. [2021-06-05 11:04:49,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-05 11:04:49,166 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.8636363636363638) internal successors, (85), 22 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-06-05 11:04:49,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:04:49,735 INFO L225 Difference]: With dead ends: 200099 [2021-06-05 11:04:49,735 INFO L226 Difference]: Without dead ends: 199364 [2021-06-05 11:04:49,737 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 2390.3ms TimeCoverageRelationStatistics Valid=693, Invalid=1757, Unknown=0, NotChecked=0, Total=2450 [2021-06-05 11:04:50,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199364 states. [2021-06-05 11:04:52,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199364 to 114573. [2021-06-05 11:04:52,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114573 states, 114569 states have (on average 3.083809756565912) internal successors, (353309), 114572 states have internal predecessors, (353309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:04:52,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114573 states to 114573 states and 353309 transitions. [2021-06-05 11:04:52,891 INFO L78 Accepts]: Start accepts. Automaton has 114573 states and 353309 transitions. Word has length 85 [2021-06-05 11:04:52,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:04:52,892 INFO L482 AbstractCegarLoop]: Abstraction has 114573 states and 353309 transitions. [2021-06-05 11:04:52,892 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 3.8636363636363638) internal successors, (85), 22 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:04:52,892 INFO L276 IsEmpty]: Start isEmpty. Operand 114573 states and 353309 transitions. [2021-06-05 11:04:52,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-06-05 11:04:52,942 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:04:52,942 INFO L521 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] [2021-06-05 11:04:52,942 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 11:04:52,942 INFO L430 AbstractCegarLoop]: === Iteration 5 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:04:52,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:04:52,942 INFO L82 PathProgramCache]: Analyzing trace with hash -51608287, now seen corresponding path program 4 times [2021-06-05 11:04:52,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:04:52,943 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934282947] [2021-06-05 11:04:52,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:04:52,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:04:53,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:04:53,300 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:04:53,300 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934282947] [2021-06-05 11:04:53,300 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934282947] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:04:53,301 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:04:53,301 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-06-05 11:04:53,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116092132] [2021-06-05 11:04:53,301 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-06-05 11:04:53,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:04:53,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-06-05 11:04:53,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=412, Unknown=0, NotChecked=0, Total=462 [2021-06-05 11:04:53,302 INFO L87 Difference]: Start difference. First operand 114573 states and 353309 transitions. Second operand has 22 states, 22 states have (on average 3.8636363636363638) internal successors, (85), 22 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:04:53,893 WARN L205 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2021-06-05 11:04:55,014 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2021-06-05 11:04:55,614 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2021-06-05 11:04:57,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:04:57,197 INFO L93 Difference]: Finished difference Result 198689 states and 613129 transitions. [2021-06-05 11:04:57,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-05 11:04:57,198 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.8636363636363638) internal successors, (85), 22 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-06-05 11:04:57,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:04:57,800 INFO L225 Difference]: With dead ends: 198689 [2021-06-05 11:04:57,800 INFO L226 Difference]: Without dead ends: 198542 [2021-06-05 11:04:57,801 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 2264.9ms TimeCoverageRelationStatistics Valid=612, Invalid=1644, Unknown=0, NotChecked=0, Total=2256 [2021-06-05 11:04:59,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198542 states. [2021-06-05 11:05:00,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198542 to 114573. [2021-06-05 11:05:00,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114573 states, 114569 states have (on average 3.083809756565912) internal successors, (353309), 114572 states have internal predecessors, (353309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:05:01,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114573 states to 114573 states and 353309 transitions. [2021-06-05 11:05:01,189 INFO L78 Accepts]: Start accepts. Automaton has 114573 states and 353309 transitions. Word has length 85 [2021-06-05 11:05:01,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:05:01,189 INFO L482 AbstractCegarLoop]: Abstraction has 114573 states and 353309 transitions. [2021-06-05 11:05:01,189 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 3.8636363636363638) internal successors, (85), 22 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:05:01,190 INFO L276 IsEmpty]: Start isEmpty. Operand 114573 states and 353309 transitions. [2021-06-05 11:05:01,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-06-05 11:05:01,241 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:05:01,241 INFO L521 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] [2021-06-05 11:05:01,241 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 11:05:01,242 INFO L430 AbstractCegarLoop]: === Iteration 6 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:05:01,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:05:01,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1693106881, now seen corresponding path program 5 times [2021-06-05 11:05:01,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:05:01,242 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079388543] [2021-06-05 11:05:01,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:05:01,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:05:01,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:05:01,544 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:05:01,544 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079388543] [2021-06-05 11:05:01,544 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079388543] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:05:01,545 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:05:01,545 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-06-05 11:05:01,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844946500] [2021-06-05 11:05:01,545 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-06-05 11:05:01,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:05:01,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-06-05 11:05:01,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=372, Unknown=0, NotChecked=0, Total=420 [2021-06-05 11:05:01,546 INFO L87 Difference]: Start difference. First operand 114573 states and 353309 transitions. Second operand has 21 states, 21 states have (on average 4.0476190476190474) internal successors, (85), 21 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:05:02,848 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 86 [2021-06-05 11:05:02,989 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2021-06-05 11:05:03,310 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2021-06-05 11:05:04,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:05:04,682 INFO L93 Difference]: Finished difference Result 149862 states and 461077 transitions. [2021-06-05 11:05:04,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-05 11:05:04,683 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 4.0476190476190474) internal successors, (85), 21 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-06-05 11:05:04,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:05:04,910 INFO L225 Difference]: With dead ends: 149862 [2021-06-05 11:05:04,910 INFO L226 Difference]: Without dead ends: 148875 [2021-06-05 11:05:04,910 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 1513.4ms TimeCoverageRelationStatistics Valid=403, Invalid=1157, Unknown=0, NotChecked=0, Total=1560 [2021-06-05 11:05:06,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148875 states. [2021-06-05 11:05:07,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148875 to 105931. [2021-06-05 11:05:07,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105931 states, 105927 states have (on average 3.08080092894163) internal successors, (326340), 105930 states have internal predecessors, (326340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:05:07,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105931 states to 105931 states and 326340 transitions. [2021-06-05 11:05:07,905 INFO L78 Accepts]: Start accepts. Automaton has 105931 states and 326340 transitions. Word has length 85 [2021-06-05 11:05:07,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:05:07,905 INFO L482 AbstractCegarLoop]: Abstraction has 105931 states and 326340 transitions. [2021-06-05 11:05:07,906 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 4.0476190476190474) internal successors, (85), 21 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:05:07,906 INFO L276 IsEmpty]: Start isEmpty. Operand 105931 states and 326340 transitions. [2021-06-05 11:05:07,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-06-05 11:05:07,967 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:05:07,967 INFO L521 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] [2021-06-05 11:05:07,967 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 11:05:07,967 INFO L430 AbstractCegarLoop]: === Iteration 7 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:05:07,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:05:07,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1706211467, now seen corresponding path program 1 times [2021-06-05 11:05:07,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:05:07,968 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237560335] [2021-06-05 11:05:07,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:05:08,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:05:08,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:05:08,710 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:05:08,710 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237560335] [2021-06-05 11:05:08,710 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237560335] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:05:08,710 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:05:08,710 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-05 11:05:08,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131093219] [2021-06-05 11:05:08,710 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-05 11:05:08,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:05:08,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-05 11:05:08,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=853, Unknown=0, NotChecked=0, Total=930 [2021-06-05 11:05:08,711 INFO L87 Difference]: Start difference. First operand 105931 states and 326340 transitions. Second operand has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:05:10,604 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 66 [2021-06-05 11:05:10,884 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 70 [2021-06-05 11:05:11,091 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 75 [2021-06-05 11:05:11,296 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 77 [2021-06-05 11:05:11,513 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 79 [2021-06-05 11:05:11,711 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 80 [2021-06-05 11:05:11,930 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 81 [2021-06-05 11:05:12,108 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 73 [2021-06-05 11:05:12,327 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 84 [2021-06-05 11:05:12,557 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 83 [2021-06-05 11:05:12,770 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 85 [2021-06-05 11:05:12,962 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 78 [2021-06-05 11:05:13,198 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 88 [2021-06-05 11:05:13,522 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 87 [2021-06-05 11:05:13,748 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 89 [2021-06-05 11:05:14,088 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 92 [2021-06-05 11:05:16,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:05:16,132 INFO L93 Difference]: Finished difference Result 154369 states and 475832 transitions. [2021-06-05 11:05:16,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-05 11:05:16,132 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-06-05 11:05:16,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:05:16,364 INFO L225 Difference]: With dead ends: 154369 [2021-06-05 11:05:16,365 INFO L226 Difference]: Without dead ends: 154369 [2021-06-05 11:05:16,365 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 695 ImplicationChecksByTransitivity, 5152.8ms TimeCoverageRelationStatistics Valid=1238, Invalid=3732, Unknown=0, NotChecked=0, Total=4970 [2021-06-05 11:05:17,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154369 states. [2021-06-05 11:05:18,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154369 to 112021. [2021-06-05 11:05:19,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112021 states, 112017 states have (on average 3.0840586696662116) internal successors, (345467), 112020 states have internal predecessors, (345467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:05:19,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112021 states to 112021 states and 345467 transitions. [2021-06-05 11:05:19,266 INFO L78 Accepts]: Start accepts. Automaton has 112021 states and 345467 transitions. Word has length 103 [2021-06-05 11:05:19,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:05:19,267 INFO L482 AbstractCegarLoop]: Abstraction has 112021 states and 345467 transitions. [2021-06-05 11:05:19,267 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:05:19,267 INFO L276 IsEmpty]: Start isEmpty. Operand 112021 states and 345467 transitions. [2021-06-05 11:05:19,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-06-05 11:05:19,340 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:05:19,340 INFO L521 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] [2021-06-05 11:05:19,340 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 11:05:19,340 INFO L430 AbstractCegarLoop]: === Iteration 8 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:05:19,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:05:19,340 INFO L82 PathProgramCache]: Analyzing trace with hash -706933199, now seen corresponding path program 2 times [2021-06-05 11:05:19,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:05:19,341 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543257233] [2021-06-05 11:05:19,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:05:19,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:05:19,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:05:19,977 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:05:19,977 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543257233] [2021-06-05 11:05:19,977 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543257233] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:05:19,977 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:05:19,977 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-05 11:05:19,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326214164] [2021-06-05 11:05:19,978 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-05 11:05:19,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:05:19,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-05 11:05:19,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=856, Unknown=0, NotChecked=0, Total=930 [2021-06-05 11:05:19,978 INFO L87 Difference]: Start difference. First operand 112021 states and 345467 transitions. Second operand has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:05:20,497 WARN L205 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 25 [2021-06-05 11:05:21,551 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 60 [2021-06-05 11:05:22,235 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-06-05 11:05:22,526 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 68 [2021-06-05 11:05:22,844 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 73 [2021-06-05 11:05:23,044 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 72 [2021-06-05 11:05:23,231 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 75 [2021-06-05 11:05:23,444 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 77 [2021-06-05 11:05:23,645 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 78 [2021-06-05 11:05:23,866 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 79 [2021-06-05 11:05:24,078 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 77 [2021-06-05 11:05:24,262 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 71 [2021-06-05 11:05:24,508 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 82 [2021-06-05 11:05:24,726 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 81 [2021-06-05 11:05:24,946 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 75 [2021-06-05 11:05:25,169 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 83 [2021-06-05 11:05:25,426 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 76 [2021-06-05 11:05:25,667 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 86 [2021-06-05 11:05:25,932 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 80 [2021-06-05 11:05:26,139 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 80 [2021-06-05 11:05:26,451 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 85 [2021-06-05 11:05:26,670 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 85 [2021-06-05 11:05:26,937 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 87 [2021-06-05 11:05:27,293 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 90 [2021-06-05 11:05:29,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:05:29,466 INFO L93 Difference]: Finished difference Result 157549 states and 485778 transitions. [2021-06-05 11:05:29,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-06-05 11:05:29,466 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-06-05 11:05:29,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:05:29,703 INFO L225 Difference]: With dead ends: 157549 [2021-06-05 11:05:29,704 INFO L226 Difference]: Without dead ends: 157549 [2021-06-05 11:05:29,705 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 853 ImplicationChecksByTransitivity, 6852.8ms TimeCoverageRelationStatistics Valid=1491, Invalid=4361, Unknown=0, NotChecked=0, Total=5852 [2021-06-05 11:05:30,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157549 states. [2021-06-05 11:05:32,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157549 to 112291. [2021-06-05 11:05:32,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112291 states, 112287 states have (on average 3.0842038704391426) internal successors, (346316), 112290 states have internal predecessors, (346316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:05:32,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112291 states to 112291 states and 346316 transitions. [2021-06-05 11:05:32,467 INFO L78 Accepts]: Start accepts. Automaton has 112291 states and 346316 transitions. Word has length 103 [2021-06-05 11:05:32,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:05:32,467 INFO L482 AbstractCegarLoop]: Abstraction has 112291 states and 346316 transitions. [2021-06-05 11:05:32,467 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:05:32,467 INFO L276 IsEmpty]: Start isEmpty. Operand 112291 states and 346316 transitions. [2021-06-05 11:05:32,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-06-05 11:05:32,537 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:05:32,538 INFO L521 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] [2021-06-05 11:05:32,538 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 11:05:32,538 INFO L430 AbstractCegarLoop]: === Iteration 9 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:05:32,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:05:32,538 INFO L82 PathProgramCache]: Analyzing trace with hash 1516394469, now seen corresponding path program 3 times [2021-06-05 11:05:32,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:05:32,538 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288810689] [2021-06-05 11:05:32,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:05:32,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:05:33,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:05:33,592 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:05:33,592 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288810689] [2021-06-05 11:05:33,592 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288810689] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:05:33,592 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:05:33,593 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-05 11:05:33,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591189273] [2021-06-05 11:05:33,593 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-05 11:05:33,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:05:33,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-05 11:05:33,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=856, Unknown=0, NotChecked=0, Total=930 [2021-06-05 11:05:33,594 INFO L87 Difference]: Start difference. First operand 112291 states and 346316 transitions. Second operand has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:05:34,526 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 56 [2021-06-05 11:05:34,780 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 60 [2021-06-05 11:05:35,686 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-06-05 11:05:35,992 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 68 [2021-06-05 11:05:36,203 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 73 [2021-06-05 11:05:36,419 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 76 [2021-06-05 11:05:36,617 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 75 [2021-06-05 11:05:36,835 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 80 [2021-06-05 11:05:37,029 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 78 [2021-06-05 11:05:37,245 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 82 [2021-06-05 11:05:37,435 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 78 [2021-06-05 11:05:37,611 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 71 [2021-06-05 11:05:37,864 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 85 [2021-06-05 11:05:38,064 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 82 [2021-06-05 11:05:38,281 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 79 [2021-06-05 11:05:38,503 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 84 [2021-06-05 11:05:38,718 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 76 [2021-06-05 11:05:38,969 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 87 [2021-06-05 11:05:39,234 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 84 [2021-06-05 11:05:39,442 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 81 [2021-06-05 11:05:39,677 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 82 [2021-06-05 11:05:39,912 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 86 [2021-06-05 11:05:40,133 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 84 [2021-06-05 11:05:40,379 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 86 [2021-06-05 11:05:40,708 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 89 [2021-06-05 11:05:41,122 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 85 [2021-06-05 11:05:41,791 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 90 [2021-06-05 11:05:43,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:05:43,236 INFO L93 Difference]: Finished difference Result 157189 states and 484656 transitions. [2021-06-05 11:05:43,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-06-05 11:05:43,236 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-06-05 11:05:43,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:05:43,481 INFO L225 Difference]: With dead ends: 157189 [2021-06-05 11:05:43,482 INFO L226 Difference]: Without dead ends: 157189 [2021-06-05 11:05:43,483 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 953 ImplicationChecksByTransitivity, 6884.9ms TimeCoverageRelationStatistics Valid=1639, Invalid=4681, Unknown=0, NotChecked=0, Total=6320 [2021-06-05 11:05:44,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157189 states. [2021-06-05 11:05:45,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157189 to 112321. [2021-06-05 11:05:46,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112321 states, 112317 states have (on average 3.0841902828601193) internal successors, (346407), 112320 states have internal predecessors, (346407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:05:46,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112321 states to 112321 states and 346407 transitions. [2021-06-05 11:05:46,253 INFO L78 Accepts]: Start accepts. Automaton has 112321 states and 346407 transitions. Word has length 103 [2021-06-05 11:05:46,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:05:46,253 INFO L482 AbstractCegarLoop]: Abstraction has 112321 states and 346407 transitions. [2021-06-05 11:05:46,253 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:05:46,253 INFO L276 IsEmpty]: Start isEmpty. Operand 112321 states and 346407 transitions. [2021-06-05 11:05:46,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-06-05 11:05:46,734 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:05:46,734 INFO L521 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] [2021-06-05 11:05:46,734 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 11:05:46,734 INFO L430 AbstractCegarLoop]: === Iteration 10 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:05:46,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:05:46,734 INFO L82 PathProgramCache]: Analyzing trace with hash -1302369979, now seen corresponding path program 4 times [2021-06-05 11:05:46,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:05:46,734 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146492903] [2021-06-05 11:05:46,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:05:46,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:05:47,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:05:47,467 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:05:47,467 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146492903] [2021-06-05 11:05:47,467 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146492903] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:05:47,467 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:05:47,467 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-06-05 11:05:47,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511979292] [2021-06-05 11:05:47,468 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-06-05 11:05:47,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:05:47,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-06-05 11:05:47,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=795, Unknown=0, NotChecked=0, Total=870 [2021-06-05 11:05:47,469 INFO L87 Difference]: Start difference. First operand 112321 states and 346407 transitions. Second operand has 30 states, 30 states have (on average 3.433333333333333) internal successors, (103), 30 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:05:48,567 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 60 [2021-06-05 11:05:49,350 WARN L205 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 64 [2021-06-05 11:05:49,638 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 68 [2021-06-05 11:05:49,845 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 72 [2021-06-05 11:05:50,050 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 72 [2021-06-05 11:05:50,229 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 74 [2021-06-05 11:05:50,435 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 76 [2021-06-05 11:05:50,628 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 77 [2021-06-05 11:05:50,843 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 78 [2021-06-05 11:05:51,034 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 77 [2021-06-05 11:05:51,205 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 71 [2021-06-05 11:05:51,470 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 81 [2021-06-05 11:05:51,675 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 81 [2021-06-05 11:05:51,890 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 75 [2021-06-05 11:05:52,103 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 83 [2021-06-05 11:05:52,304 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 76 [2021-06-05 11:05:52,551 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 86 [2021-06-05 11:05:52,813 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 80 [2021-06-05 11:05:53,019 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 80 [2021-06-05 11:05:53,268 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 87 [2021-06-05 11:05:53,503 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 85 [2021-06-05 11:05:53,764 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 91 [2021-06-05 11:05:54,034 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 93 [2021-06-05 11:05:54,323 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 96 [2021-06-05 11:05:54,625 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 90 [2021-06-05 11:05:55,055 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 95 [2021-06-05 11:05:56,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:05:56,325 INFO L93 Difference]: Finished difference Result 156259 states and 481745 transitions. [2021-06-05 11:05:56,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-06-05 11:05:56,325 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.433333333333333) internal successors, (103), 30 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-06-05 11:05:56,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:05:56,548 INFO L225 Difference]: With dead ends: 156259 [2021-06-05 11:05:56,548 INFO L226 Difference]: Without dead ends: 156259 [2021-06-05 11:05:56,549 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 649 ImplicationChecksByTransitivity, 6675.8ms TimeCoverageRelationStatistics Valid=1457, Invalid=3513, Unknown=0, NotChecked=0, Total=4970 [2021-06-05 11:05:57,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156259 states. [2021-06-05 11:05:58,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156259 to 117001. [2021-06-05 11:05:59,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117001 states, 116997 states have (on average 3.0847201210287443) internal successors, (360903), 117000 states have internal predecessors, (360903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:05:59,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117001 states to 117001 states and 360903 transitions. [2021-06-05 11:05:59,271 INFO L78 Accepts]: Start accepts. Automaton has 117001 states and 360903 transitions. Word has length 103 [2021-06-05 11:05:59,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:05:59,271 INFO L482 AbstractCegarLoop]: Abstraction has 117001 states and 360903 transitions. [2021-06-05 11:05:59,271 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 3.433333333333333) internal successors, (103), 30 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:05:59,271 INFO L276 IsEmpty]: Start isEmpty. Operand 117001 states and 360903 transitions. [2021-06-05 11:05:59,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-06-05 11:05:59,735 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:05:59,735 INFO L521 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] [2021-06-05 11:05:59,735 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-05 11:05:59,735 INFO L430 AbstractCegarLoop]: === Iteration 11 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:05:59,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:05:59,735 INFO L82 PathProgramCache]: Analyzing trace with hash 13468875, now seen corresponding path program 5 times [2021-06-05 11:05:59,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:05:59,736 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430716779] [2021-06-05 11:05:59,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:05:59,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:06:00,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:06:00,447 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:06:00,447 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430716779] [2021-06-05 11:06:00,447 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430716779] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:06:00,447 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:06:00,447 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-05 11:06:00,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056997360] [2021-06-05 11:06:00,447 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-05 11:06:00,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:06:00,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-05 11:06:00,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=856, Unknown=0, NotChecked=0, Total=930 [2021-06-05 11:06:00,448 INFO L87 Difference]: Start difference. First operand 117001 states and 360903 transitions. Second operand has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:06:01,604 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 60 [2021-06-05 11:06:02,496 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-06-05 11:06:02,749 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 68 [2021-06-05 11:06:03,022 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 70 [2021-06-05 11:06:03,287 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 77 [2021-06-05 11:06:03,512 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 81 [2021-06-05 11:06:03,727 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 83 [2021-06-05 11:06:03,972 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 86 [2021-06-05 11:06:04,192 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 77 [2021-06-05 11:06:04,394 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 80 [2021-06-05 11:06:04,662 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 79 [2021-06-05 11:06:04,889 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 82 [2021-06-05 11:06:05,102 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 85 [2021-06-05 11:06:05,318 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 85 [2021-06-05 11:06:05,518 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 71 [2021-06-05 11:06:05,726 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 87 [2021-06-05 11:06:06,063 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 90 [2021-06-05 11:06:06,441 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 76 [2021-06-05 11:06:06,796 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 76 [2021-06-05 11:06:07,372 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 81 [2021-06-05 11:06:08,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:06:08,751 INFO L93 Difference]: Finished difference Result 165319 states and 510217 transitions. [2021-06-05 11:06:08,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:06:08,751 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-06-05 11:06:08,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:06:09,183 INFO L225 Difference]: With dead ends: 165319 [2021-06-05 11:06:09,183 INFO L226 Difference]: Without dead ends: 165319 [2021-06-05 11:06:09,184 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 787 ImplicationChecksByTransitivity, 5727.6ms TimeCoverageRelationStatistics Valid=1336, Invalid=4066, Unknown=0, NotChecked=0, Total=5402 [2021-06-05 11:06:10,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165319 states. [2021-06-05 11:06:11,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165319 to 120211. [2021-06-05 11:06:11,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120211 states, 120207 states have (on average 3.087091433943115) internal successors, (371090), 120210 states have internal predecessors, (371090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:06:11,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120211 states to 120211 states and 371090 transitions. [2021-06-05 11:06:11,896 INFO L78 Accepts]: Start accepts. Automaton has 120211 states and 371090 transitions. Word has length 103 [2021-06-05 11:06:11,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:06:11,896 INFO L482 AbstractCegarLoop]: Abstraction has 120211 states and 371090 transitions. [2021-06-05 11:06:11,897 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:06:11,897 INFO L276 IsEmpty]: Start isEmpty. Operand 120211 states and 371090 transitions. [2021-06-05 11:06:11,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-06-05 11:06:11,973 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:06:11,973 INFO L521 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] [2021-06-05 11:06:11,973 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-05 11:06:11,973 INFO L430 AbstractCegarLoop]: === Iteration 12 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:06:11,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:06:11,974 INFO L82 PathProgramCache]: Analyzing trace with hash 505660145, now seen corresponding path program 6 times [2021-06-05 11:06:11,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:06:11,974 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728255900] [2021-06-05 11:06:11,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:06:11,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:06:12,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:06:12,557 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:06:12,558 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728255900] [2021-06-05 11:06:12,558 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728255900] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:06:12,558 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:06:12,558 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-05 11:06:12,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373462811] [2021-06-05 11:06:12,558 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-05 11:06:12,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:06:12,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-05 11:06:12,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=856, Unknown=0, NotChecked=0, Total=930 [2021-06-05 11:06:12,559 INFO L87 Difference]: Start difference. First operand 120211 states and 371090 transitions. Second operand has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:06:14,060 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 60 [2021-06-05 11:06:14,665 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-06-05 11:06:14,892 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 68 [2021-06-05 11:06:15,125 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 70 [2021-06-05 11:06:15,472 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 76 [2021-06-05 11:06:15,683 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 78 [2021-06-05 11:06:15,897 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 78 [2021-06-05 11:06:16,094 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 80 [2021-06-05 11:06:16,322 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 80 [2021-06-05 11:06:16,534 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 83 [2021-06-05 11:06:16,760 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 82 [2021-06-05 11:06:16,958 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 79 [2021-06-05 11:06:17,212 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 85 [2021-06-05 11:06:17,466 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 81 [2021-06-05 11:06:17,708 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 84 [2021-06-05 11:06:17,969 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 84 [2021-06-05 11:06:18,210 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 86 [2021-06-05 11:06:18,462 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 86 [2021-06-05 11:06:18,809 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 89 [2021-06-05 11:06:20,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:06:20,875 INFO L93 Difference]: Finished difference Result 162709 states and 501850 transitions. [2021-06-05 11:06:20,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-06-05 11:06:20,875 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-06-05 11:06:20,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:06:21,119 INFO L225 Difference]: With dead ends: 162709 [2021-06-05 11:06:21,119 INFO L226 Difference]: Without dead ends: 162709 [2021-06-05 11:06:21,120 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 743 ImplicationChecksByTransitivity, 5701.5ms TimeCoverageRelationStatistics Valid=1305, Invalid=3951, Unknown=0, NotChecked=0, Total=5256 [2021-06-05 11:06:22,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162709 states. [2021-06-05 11:06:23,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162709 to 120631. [2021-06-05 11:06:23,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120631 states, 120627 states have (on average 3.086406857502881) internal successors, (372304), 120630 states have internal predecessors, (372304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:06:24,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120631 states to 120631 states and 372304 transitions. [2021-06-05 11:06:24,347 INFO L78 Accepts]: Start accepts. Automaton has 120631 states and 372304 transitions. Word has length 103 [2021-06-05 11:06:24,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:06:24,347 INFO L482 AbstractCegarLoop]: Abstraction has 120631 states and 372304 transitions. [2021-06-05 11:06:24,347 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:06:24,348 INFO L276 IsEmpty]: Start isEmpty. Operand 120631 states and 372304 transitions. [2021-06-05 11:06:24,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-06-05 11:06:24,424 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:06:24,424 INFO L521 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] [2021-06-05 11:06:24,424 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-05 11:06:24,424 INFO L430 AbstractCegarLoop]: === Iteration 13 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:06:24,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:06:24,425 INFO L82 PathProgramCache]: Analyzing trace with hash -2058170753, now seen corresponding path program 7 times [2021-06-05 11:06:24,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:06:24,425 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117777120] [2021-06-05 11:06:24,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:06:24,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:06:25,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:06:25,038 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:06:25,039 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117777120] [2021-06-05 11:06:25,039 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117777120] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:06:25,039 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:06:25,039 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-05 11:06:25,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201974213] [2021-06-05 11:06:25,039 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-05 11:06:25,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:06:25,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-05 11:06:25,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=857, Unknown=0, NotChecked=0, Total=930 [2021-06-05 11:06:25,040 INFO L87 Difference]: Start difference. First operand 120631 states and 372304 transitions. Second operand has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:06:26,226 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 60 [2021-06-05 11:06:27,142 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-06-05 11:06:27,398 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 68 [2021-06-05 11:06:27,640 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 70 [2021-06-05 11:06:27,848 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 76 [2021-06-05 11:06:28,068 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 80 [2021-06-05 11:06:28,289 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 78 [2021-06-05 11:06:28,494 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 82 [2021-06-05 11:06:28,730 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 82 [2021-06-05 11:06:28,949 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 85 [2021-06-05 11:06:29,235 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 84 [2021-06-05 11:06:29,433 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 79 [2021-06-05 11:06:29,697 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 87 [2021-06-05 11:06:29,948 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 81 [2021-06-05 11:06:30,159 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 84 [2021-06-05 11:06:30,373 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 82 [2021-06-05 11:06:30,596 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 84 [2021-06-05 11:06:30,828 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 86 [2021-06-05 11:06:31,061 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 86 [2021-06-05 11:06:31,473 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 89 [2021-06-05 11:06:31,891 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 85 [2021-06-05 11:06:32,564 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 90 [2021-06-05 11:06:34,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:06:34,066 INFO L93 Difference]: Finished difference Result 162619 states and 501517 transitions. [2021-06-05 11:06:34,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-06-05 11:06:34,067 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-06-05 11:06:34,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:06:34,307 INFO L225 Difference]: With dead ends: 162619 [2021-06-05 11:06:34,308 INFO L226 Difference]: Without dead ends: 162619 [2021-06-05 11:06:34,309 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 825 ImplicationChecksByTransitivity, 6172.3ms TimeCoverageRelationStatistics Valid=1428, Invalid=4272, Unknown=0, NotChecked=0, Total=5700 [2021-06-05 11:06:35,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162619 states. [2021-06-05 11:06:36,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162619 to 120661. [2021-06-05 11:06:36,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120661 states, 120657 states have (on average 3.0863936613706624) internal successors, (372395), 120660 states have internal predecessors, (372395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:06:37,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120661 states to 120661 states and 372395 transitions. [2021-06-05 11:06:37,149 INFO L78 Accepts]: Start accepts. Automaton has 120661 states and 372395 transitions. Word has length 103 [2021-06-05 11:06:37,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:06:37,149 INFO L482 AbstractCegarLoop]: Abstraction has 120661 states and 372395 transitions. [2021-06-05 11:06:37,149 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:06:37,149 INFO L276 IsEmpty]: Start isEmpty. Operand 120661 states and 372395 transitions. [2021-06-05 11:06:37,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-06-05 11:06:37,228 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:06:37,228 INFO L521 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] [2021-06-05 11:06:37,228 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-05 11:06:37,228 INFO L430 AbstractCegarLoop]: === Iteration 14 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:06:37,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:06:37,229 INFO L82 PathProgramCache]: Analyzing trace with hash -581967905, now seen corresponding path program 8 times [2021-06-05 11:06:37,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:06:37,229 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751882424] [2021-06-05 11:06:37,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:06:37,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:06:38,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:06:38,368 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:06:38,368 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751882424] [2021-06-05 11:06:38,368 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751882424] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:06:38,368 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:06:38,368 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-05 11:06:38,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143690556] [2021-06-05 11:06:38,368 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-05 11:06:38,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:06:38,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-05 11:06:38,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=854, Unknown=0, NotChecked=0, Total=930 [2021-06-05 11:06:38,369 INFO L87 Difference]: Start difference. First operand 120661 states and 372395 transitions. Second operand has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:06:39,582 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 60 [2021-06-05 11:06:40,487 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 64 [2021-06-05 11:06:40,742 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 68 [2021-06-05 11:06:40,958 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 68 [2021-06-05 11:06:41,148 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 70 [2021-06-05 11:06:41,321 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 72 [2021-06-05 11:06:41,528 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 72 [2021-06-05 11:06:41,714 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 74 [2021-06-05 11:06:41,932 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 76 [2021-06-05 11:06:42,139 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 77 [2021-06-05 11:06:42,370 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 78 [2021-06-05 11:06:42,561 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 77 [2021-06-05 11:06:42,755 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 71 [2021-06-05 11:06:43,005 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 81 [2021-06-05 11:06:43,211 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 81 [2021-06-05 11:06:43,434 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 75 [2021-06-05 11:06:43,648 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 83 [2021-06-05 11:06:43,857 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 76 [2021-06-05 11:06:44,106 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 86 [2021-06-05 11:06:44,378 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 80 [2021-06-05 11:06:44,583 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 80 [2021-06-05 11:06:44,843 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 87 [2021-06-05 11:06:45,097 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 85 [2021-06-05 11:06:45,330 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 91 [2021-06-05 11:06:45,612 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 93 [2021-06-05 11:06:45,917 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 96 [2021-06-05 11:06:46,236 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 90 [2021-06-05 11:06:46,698 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 95 [2021-06-05 11:06:48,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:06:48,179 INFO L93 Difference]: Finished difference Result 161929 states and 499394 transitions. [2021-06-05 11:06:48,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:06:48,179 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-06-05 11:06:48,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:06:48,419 INFO L225 Difference]: With dead ends: 161929 [2021-06-05 11:06:48,419 INFO L226 Difference]: Without dead ends: 161929 [2021-06-05 11:06:48,420 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 665 ImplicationChecksByTransitivity, 7148.3ms TimeCoverageRelationStatistics Valid=1554, Invalid=3848, Unknown=0, NotChecked=0, Total=5402 [2021-06-05 11:06:49,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161929 states. [2021-06-05 11:06:50,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161929 to 117811. [2021-06-05 11:06:50,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117811 states, 117807 states have (on average 3.085130764725356) internal successors, (363450), 117810 states have internal predecessors, (363450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:06:51,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117811 states to 117811 states and 363450 transitions. [2021-06-05 11:06:51,231 INFO L78 Accepts]: Start accepts. Automaton has 117811 states and 363450 transitions. Word has length 103 [2021-06-05 11:06:51,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:06:51,231 INFO L482 AbstractCegarLoop]: Abstraction has 117811 states and 363450 transitions. [2021-06-05 11:06:51,231 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:06:51,232 INFO L276 IsEmpty]: Start isEmpty. Operand 117811 states and 363450 transitions. [2021-06-05 11:06:51,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-06-05 11:06:51,309 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:06:51,309 INFO L521 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] [2021-06-05 11:06:51,309 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-05 11:06:51,309 INFO L430 AbstractCegarLoop]: === Iteration 15 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:06:51,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:06:51,310 INFO L82 PathProgramCache]: Analyzing trace with hash -436301109, now seen corresponding path program 9 times [2021-06-05 11:06:51,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:06:51,310 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918721764] [2021-06-05 11:06:51,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:06:51,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:06:52,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:06:52,236 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:06:52,236 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918721764] [2021-06-05 11:06:52,236 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918721764] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:06:52,236 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:06:52,236 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-05 11:06:52,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129282146] [2021-06-05 11:06:52,236 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-05 11:06:52,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:06:52,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-05 11:06:52,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=856, Unknown=0, NotChecked=0, Total=930 [2021-06-05 11:06:52,237 INFO L87 Difference]: Start difference. First operand 117811 states and 363450 transitions. Second operand has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:06:53,376 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 60 [2021-06-05 11:06:53,971 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-06-05 11:06:54,397 WARN L205 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 68 [2021-06-05 11:06:54,650 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 70 [2021-06-05 11:06:54,940 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 74 [2021-06-05 11:06:55,192 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 82 [2021-06-05 11:06:55,402 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 84 [2021-06-05 11:06:55,706 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 86 [2021-06-05 11:06:56,069 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 89 [2021-06-05 11:06:56,436 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 85 [2021-06-05 11:06:56,921 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 90 [2021-06-05 11:06:58,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:06:58,124 INFO L93 Difference]: Finished difference Result 158899 states and 489873 transitions. [2021-06-05 11:06:58,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-05 11:06:58,125 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-06-05 11:06:58,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:06:58,366 INFO L225 Difference]: With dead ends: 158899 [2021-06-05 11:06:58,366 INFO L226 Difference]: Without dead ends: 158899 [2021-06-05 11:06:58,367 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 570 ImplicationChecksByTransitivity, 4291.5ms TimeCoverageRelationStatistics Valid=915, Invalid=3245, Unknown=0, NotChecked=0, Total=4160 [2021-06-05 11:06:59,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158899 states. [2021-06-05 11:07:00,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158899 to 118291. [2021-06-05 11:07:00,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118291 states, 118287 states have (on average 3.084920574534818) internal successors, (364906), 118290 states have internal predecessors, (364906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:07:01,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118291 states to 118291 states and 364906 transitions. [2021-06-05 11:07:01,397 INFO L78 Accepts]: Start accepts. Automaton has 118291 states and 364906 transitions. Word has length 103 [2021-06-05 11:07:01,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:07:01,397 INFO L482 AbstractCegarLoop]: Abstraction has 118291 states and 364906 transitions. [2021-06-05 11:07:01,397 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:07:01,397 INFO L276 IsEmpty]: Start isEmpty. Operand 118291 states and 364906 transitions. [2021-06-05 11:07:01,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-06-05 11:07:01,468 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:07:01,468 INFO L521 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] [2021-06-05 11:07:01,468 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-05 11:07:01,468 INFO L430 AbstractCegarLoop]: === Iteration 16 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:07:01,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:07:01,468 INFO L82 PathProgramCache]: Analyzing trace with hash 1039901739, now seen corresponding path program 10 times [2021-06-05 11:07:01,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:07:01,469 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107448292] [2021-06-05 11:07:01,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:07:01,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:07:02,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:07:02,101 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:07:02,101 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107448292] [2021-06-05 11:07:02,101 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107448292] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:07:02,101 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:07:02,101 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-06-05 11:07:02,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084635811] [2021-06-05 11:07:02,101 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-06-05 11:07:02,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:07:02,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-06-05 11:07:02,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=799, Unknown=0, NotChecked=0, Total=870 [2021-06-05 11:07:02,102 INFO L87 Difference]: Start difference. First operand 118291 states and 364906 transitions. Second operand has 30 states, 30 states have (on average 3.433333333333333) internal successors, (103), 30 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:07:03,442 WARN L205 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 60 [2021-06-05 11:07:04,042 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 64 [2021-06-05 11:07:04,266 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 68 [2021-06-05 11:07:04,469 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 68 [2021-06-05 11:07:04,658 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 70 [2021-06-05 11:07:04,829 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 72 [2021-06-05 11:07:05,031 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 72 [2021-06-05 11:07:05,216 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 76 [2021-06-05 11:07:05,425 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 76 [2021-06-05 11:07:05,722 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 79 [2021-06-05 11:07:05,945 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 80 [2021-06-05 11:07:06,143 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 77 [2021-06-05 11:07:06,323 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 71 [2021-06-05 11:07:06,565 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 83 [2021-06-05 11:07:06,771 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 81 [2021-06-05 11:07:06,991 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 75 [2021-06-05 11:07:07,208 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 85 [2021-06-05 11:07:07,403 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 83 [2021-06-05 11:07:07,594 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 76 [2021-06-05 11:07:07,846 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 88 [2021-06-05 11:07:08,137 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 80 [2021-06-05 11:07:08,348 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 80 [2021-06-05 11:07:08,610 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 87 [2021-06-05 11:07:08,855 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 85 [2021-06-05 11:07:09,080 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 91 [2021-06-05 11:07:09,364 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 95 [2021-06-05 11:07:09,662 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 98 [2021-06-05 11:07:09,937 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 90 [2021-06-05 11:07:10,335 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 95 [2021-06-05 11:07:11,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:07:11,774 INFO L93 Difference]: Finished difference Result 158623 states and 489058 transitions. [2021-06-05 11:07:11,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-06-05 11:07:11,775 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.433333333333333) internal successors, (103), 30 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-06-05 11:07:11,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:07:12,013 INFO L225 Difference]: With dead ends: 158623 [2021-06-05 11:07:12,013 INFO L226 Difference]: Without dead ends: 158623 [2021-06-05 11:07:12,014 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 679 ImplicationChecksByTransitivity, 7283.2ms TimeCoverageRelationStatistics Valid=1574, Invalid=3828, Unknown=0, NotChecked=0, Total=5402 [2021-06-05 11:07:13,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158623 states. [2021-06-05 11:07:14,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158623 to 120253. [2021-06-05 11:07:14,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120253 states, 120249 states have (on average 3.084408186346664) internal successors, (370897), 120252 states have internal predecessors, (370897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:07:15,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120253 states to 120253 states and 370897 transitions. [2021-06-05 11:07:15,109 INFO L78 Accepts]: Start accepts. Automaton has 120253 states and 370897 transitions. Word has length 103 [2021-06-05 11:07:15,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:07:15,110 INFO L482 AbstractCegarLoop]: Abstraction has 120253 states and 370897 transitions. [2021-06-05 11:07:15,110 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 3.433333333333333) internal successors, (103), 30 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:07:15,110 INFO L276 IsEmpty]: Start isEmpty. Operand 120253 states and 370897 transitions. [2021-06-05 11:07:15,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-06-05 11:07:15,180 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:07:15,180 INFO L521 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] [2021-06-05 11:07:15,180 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-06-05 11:07:15,180 INFO L430 AbstractCegarLoop]: === Iteration 17 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:07:15,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:07:15,181 INFO L82 PathProgramCache]: Analyzing trace with hash -658479683, now seen corresponding path program 11 times [2021-06-05 11:07:15,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:07:15,181 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944816171] [2021-06-05 11:07:15,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:07:15,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:07:15,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:07:15,905 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:07:15,905 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944816171] [2021-06-05 11:07:15,905 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944816171] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:07:15,906 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:07:15,906 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-05 11:07:15,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199145268] [2021-06-05 11:07:15,906 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-05 11:07:15,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:07:15,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-05 11:07:15,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=848, Unknown=0, NotChecked=0, Total=930 [2021-06-05 11:07:15,906 INFO L87 Difference]: Start difference. First operand 120253 states and 370897 transitions. Second operand has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:07:17,256 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 61 [2021-06-05 11:07:17,458 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 65 [2021-06-05 11:07:17,692 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 70 [2021-06-05 11:07:18,050 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 80 [2021-06-05 11:07:18,210 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 61 [2021-06-05 11:07:18,488 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 65 [2021-06-05 11:07:18,691 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 69 [2021-06-05 11:07:18,880 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 65 [2021-06-05 11:07:19,055 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 71 [2021-06-05 11:07:19,277 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 74 [2021-06-05 11:07:19,567 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 69 [2021-06-05 11:07:19,759 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 68 [2021-06-05 11:07:19,960 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 69 [2021-06-05 11:07:20,179 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 74 [2021-06-05 11:07:20,367 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 73 [2021-06-05 11:07:20,561 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 73 [2021-06-05 11:07:20,777 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 73 [2021-06-05 11:07:20,977 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 75 [2021-06-05 11:07:21,217 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 77 [2021-06-05 11:07:21,437 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 78 [2021-06-05 11:07:21,683 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 79 [2021-06-05 11:07:21,927 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 78 [2021-06-05 11:07:22,120 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 72 [2021-06-05 11:07:22,390 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 82 [2021-06-05 11:07:22,613 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 82 [2021-06-05 11:07:22,863 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 76 [2021-06-05 11:07:23,095 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 84 [2021-06-05 11:07:23,304 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 84 [2021-06-05 11:07:23,511 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 77 [2021-06-05 11:07:23,805 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 87 [2021-06-05 11:07:24,113 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 81 [2021-06-05 11:07:24,341 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 81 [2021-06-05 11:07:24,633 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 88 [2021-06-05 11:07:24,908 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 86 [2021-06-05 11:07:25,151 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 92 [2021-06-05 11:07:25,456 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 94 [2021-06-05 11:07:25,781 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 97 [2021-06-05 11:07:26,125 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 91 [2021-06-05 11:07:26,653 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 96 [2021-06-05 11:07:27,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:07:27,997 INFO L93 Difference]: Finished difference Result 161389 states and 497288 transitions. [2021-06-05 11:07:27,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-06-05 11:07:27,998 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-06-05 11:07:27,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:07:28,233 INFO L225 Difference]: With dead ends: 161389 [2021-06-05 11:07:28,233 INFO L226 Difference]: Without dead ends: 161389 [2021-06-05 11:07:28,233 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 965 ImplicationChecksByTransitivity, 9287.9ms TimeCoverageRelationStatistics Valid=2128, Invalid=5012, Unknown=0, NotChecked=0, Total=7140 [2021-06-05 11:07:29,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161389 states. [2021-06-05 11:07:30,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161389 to 121081. [2021-06-05 11:07:31,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121081 states, 121077 states have (on average 3.086209602154001) internal successors, (373669), 121080 states have internal predecessors, (373669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:07:31,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121081 states to 121081 states and 373669 transitions. [2021-06-05 11:07:31,276 INFO L78 Accepts]: Start accepts. Automaton has 121081 states and 373669 transitions. Word has length 103 [2021-06-05 11:07:31,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:07:31,276 INFO L482 AbstractCegarLoop]: Abstraction has 121081 states and 373669 transitions. [2021-06-05 11:07:31,276 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:07:31,276 INFO L276 IsEmpty]: Start isEmpty. Operand 121081 states and 373669 transitions. [2021-06-05 11:07:31,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-06-05 11:07:31,352 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:07:31,352 INFO L521 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] [2021-06-05 11:07:31,352 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-06-05 11:07:31,352 INFO L430 AbstractCegarLoop]: === Iteration 18 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:07:31,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:07:31,352 INFO L82 PathProgramCache]: Analyzing trace with hash 1517409227, now seen corresponding path program 12 times [2021-06-05 11:07:31,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:07:31,352 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681995573] [2021-06-05 11:07:31,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:07:31,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:07:31,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:07:31,931 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:07:31,931 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681995573] [2021-06-05 11:07:31,931 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681995573] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:07:31,931 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:07:31,931 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-05 11:07:31,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901317462] [2021-06-05 11:07:31,931 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-05 11:07:31,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:07:31,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-05 11:07:31,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=853, Unknown=0, NotChecked=0, Total=930 [2021-06-05 11:07:31,932 INFO L87 Difference]: Start difference. First operand 121081 states and 373669 transitions. Second operand has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:07:33,963 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 66 [2021-06-05 11:07:34,252 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 70 [2021-06-05 11:07:34,432 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 75 [2021-06-05 11:07:34,621 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 77 [2021-06-05 11:07:34,822 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 79 [2021-06-05 11:07:35,003 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 80 [2021-06-05 11:07:35,218 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 81 [2021-06-05 11:07:35,523 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 73 [2021-06-05 11:07:35,744 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 84 [2021-06-05 11:07:35,934 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 83 [2021-06-05 11:07:36,153 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 85 [2021-06-05 11:07:36,349 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 78 [2021-06-05 11:07:36,580 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 88 [2021-06-05 11:07:36,894 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 87 [2021-06-05 11:07:37,126 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 89 [2021-06-05 11:07:37,465 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 92 [2021-06-05 11:07:39,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:07:39,514 INFO L93 Difference]: Finished difference Result 162019 states and 499487 transitions. [2021-06-05 11:07:39,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-05 11:07:39,515 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-06-05 11:07:39,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:07:39,757 INFO L225 Difference]: With dead ends: 162019 [2021-06-05 11:07:39,757 INFO L226 Difference]: Without dead ends: 162019 [2021-06-05 11:07:39,758 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 695 ImplicationChecksByTransitivity, 5241.6ms TimeCoverageRelationStatistics Valid=1238, Invalid=3732, Unknown=0, NotChecked=0, Total=4970 [2021-06-05 11:07:40,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162019 states. [2021-06-05 11:07:42,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162019 to 123031. [2021-06-05 11:07:42,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123031 states, 123027 states have (on average 3.08561535272745) internal successors, (379614), 123030 states have internal predecessors, (379614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:07:42,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123031 states to 123031 states and 379614 transitions. [2021-06-05 11:07:42,760 INFO L78 Accepts]: Start accepts. Automaton has 123031 states and 379614 transitions. Word has length 103 [2021-06-05 11:07:42,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:07:42,760 INFO L482 AbstractCegarLoop]: Abstraction has 123031 states and 379614 transitions. [2021-06-05 11:07:42,760 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:07:42,760 INFO L276 IsEmpty]: Start isEmpty. Operand 123031 states and 379614 transitions. [2021-06-05 11:07:42,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-06-05 11:07:42,840 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:07:42,840 INFO L521 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] [2021-06-05 11:07:42,840 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-06-05 11:07:42,840 INFO L430 AbstractCegarLoop]: === Iteration 19 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:07:42,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:07:42,840 INFO L82 PathProgramCache]: Analyzing trace with hash -895735439, now seen corresponding path program 13 times [2021-06-05 11:07:42,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:07:42,840 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494387747] [2021-06-05 11:07:42,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:07:42,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:07:43,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:07:43,435 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:07:43,436 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494387747] [2021-06-05 11:07:43,436 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494387747] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:07:43,436 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:07:43,436 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-05 11:07:43,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794035339] [2021-06-05 11:07:43,436 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-05 11:07:43,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:07:43,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-05 11:07:43,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=856, Unknown=0, NotChecked=0, Total=930 [2021-06-05 11:07:43,437 INFO L87 Difference]: Start difference. First operand 123031 states and 379614 transitions. Second operand has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:07:44,476 WARN L205 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 52 [2021-06-05 11:07:44,845 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 60 [2021-06-05 11:07:45,467 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-06-05 11:07:45,749 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 68 [2021-06-05 11:07:45,937 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 73 [2021-06-05 11:07:46,134 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 74 [2021-06-05 11:07:46,313 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 75 [2021-06-05 11:07:46,531 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 79 [2021-06-05 11:07:46,856 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 80 [2021-06-05 11:07:47,082 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 81 [2021-06-05 11:07:47,274 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 79 [2021-06-05 11:07:47,448 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 71 [2021-06-05 11:07:47,696 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 84 [2021-06-05 11:07:47,917 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 83 [2021-06-05 11:07:48,133 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 77 [2021-06-05 11:07:48,339 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 85 [2021-06-05 11:07:48,542 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 78 [2021-06-05 11:07:48,785 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 88 [2021-06-05 11:07:49,046 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 82 [2021-06-05 11:07:49,268 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 82 [2021-06-05 11:07:49,551 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 87 [2021-06-05 11:07:49,765 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 87 [2021-06-05 11:07:50,018 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 89 [2021-06-05 11:07:50,364 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 92 [2021-06-05 11:07:52,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:07:52,455 INFO L93 Difference]: Finished difference Result 165199 states and 509433 transitions. [2021-06-05 11:07:52,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-06-05 11:07:52,456 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-06-05 11:07:52,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:07:52,692 INFO L225 Difference]: With dead ends: 165199 [2021-06-05 11:07:52,692 INFO L226 Difference]: Without dead ends: 165199 [2021-06-05 11:07:52,692 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 853 ImplicationChecksByTransitivity, 6647.9ms TimeCoverageRelationStatistics Valid=1491, Invalid=4361, Unknown=0, NotChecked=0, Total=5852 [2021-06-05 11:07:53,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165199 states. [2021-06-05 11:07:55,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165199 to 123301. [2021-06-05 11:07:55,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123301 states, 123297 states have (on average 3.085744178690479) internal successors, (380463), 123300 states have internal predecessors, (380463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:07:55,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123301 states to 123301 states and 380463 transitions. [2021-06-05 11:07:55,963 INFO L78 Accepts]: Start accepts. Automaton has 123301 states and 380463 transitions. Word has length 103 [2021-06-05 11:07:55,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:07:55,963 INFO L482 AbstractCegarLoop]: Abstraction has 123301 states and 380463 transitions. [2021-06-05 11:07:55,963 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:07:55,963 INFO L276 IsEmpty]: Start isEmpty. Operand 123301 states and 380463 transitions. [2021-06-05 11:07:56,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-06-05 11:07:56,053 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:07:56,054 INFO L521 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] [2021-06-05 11:07:56,054 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-06-05 11:07:56,054 INFO L430 AbstractCegarLoop]: === Iteration 20 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:07:56,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:07:56,054 INFO L82 PathProgramCache]: Analyzing trace with hash 1327592229, now seen corresponding path program 14 times [2021-06-05 11:07:56,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:07:56,054 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656005044] [2021-06-05 11:07:56,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:07:56,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:07:56,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:07:56,633 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:07:56,633 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656005044] [2021-06-05 11:07:56,634 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656005044] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:07:56,634 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:07:56,634 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-05 11:07:56,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166634677] [2021-06-05 11:07:56,634 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-05 11:07:56,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:07:56,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-05 11:07:56,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=856, Unknown=0, NotChecked=0, Total=930 [2021-06-05 11:07:56,635 INFO L87 Difference]: Start difference. First operand 123301 states and 380463 transitions. Second operand has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:07:57,786 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 60 [2021-06-05 11:07:58,649 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-06-05 11:07:58,937 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 68 [2021-06-05 11:07:59,122 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 73 [2021-06-05 11:07:59,318 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 74 [2021-06-05 11:07:59,492 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 75 [2021-06-05 11:07:59,704 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 79 [2021-06-05 11:07:59,890 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 80 [2021-06-05 11:08:00,115 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 81 [2021-06-05 11:08:00,302 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 79 [2021-06-05 11:08:00,472 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 71 [2021-06-05 11:08:00,763 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 84 [2021-06-05 11:08:00,961 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 84 [2021-06-05 11:08:01,175 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 77 [2021-06-05 11:08:01,381 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 86 [2021-06-05 11:08:01,583 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 78 [2021-06-05 11:08:01,830 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 89 [2021-06-05 11:08:02,089 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 82 [2021-06-05 11:08:02,295 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 82 [2021-06-05 11:08:02,523 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 80 [2021-06-05 11:08:02,755 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 87 [2021-06-05 11:08:02,958 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 85 [2021-06-05 11:08:03,256 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 87 [2021-06-05 11:08:03,592 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 90 [2021-06-05 11:08:04,003 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 83 [2021-06-05 11:08:04,685 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 88 [2021-06-05 11:08:06,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:08:06,180 INFO L93 Difference]: Finished difference Result 164839 states and 508311 transitions. [2021-06-05 11:08:06,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-06-05 11:08:06,181 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-06-05 11:08:06,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:08:06,416 INFO L225 Difference]: With dead ends: 164839 [2021-06-05 11:08:06,417 INFO L226 Difference]: Without dead ends: 164839 [2021-06-05 11:08:06,417 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 953 ImplicationChecksByTransitivity, 6703.6ms TimeCoverageRelationStatistics Valid=1639, Invalid=4681, Unknown=0, NotChecked=0, Total=6320 [2021-06-05 11:08:07,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164839 states. [2021-06-05 11:08:08,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164839 to 123331. [2021-06-05 11:08:09,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123331 states, 123327 states have (on average 3.0857314294517826) internal successors, (380554), 123330 states have internal predecessors, (380554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:08:09,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123331 states to 123331 states and 380554 transitions. [2021-06-05 11:08:09,251 INFO L78 Accepts]: Start accepts. Automaton has 123331 states and 380554 transitions. Word has length 103 [2021-06-05 11:08:09,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:08:09,251 INFO L482 AbstractCegarLoop]: Abstraction has 123331 states and 380554 transitions. [2021-06-05 11:08:09,251 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:08:09,251 INFO L276 IsEmpty]: Start isEmpty. Operand 123331 states and 380554 transitions. [2021-06-05 11:08:09,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-06-05 11:08:09,713 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:08:09,713 INFO L521 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] [2021-06-05 11:08:09,713 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-06-05 11:08:09,713 INFO L430 AbstractCegarLoop]: === Iteration 21 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:08:09,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:08:09,714 INFO L82 PathProgramCache]: Analyzing trace with hash -1491172219, now seen corresponding path program 15 times [2021-06-05 11:08:09,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:08:09,714 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296541078] [2021-06-05 11:08:09,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:08:09,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:08:10,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:08:10,426 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:08:10,426 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296541078] [2021-06-05 11:08:10,426 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296541078] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:08:10,426 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:08:10,426 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-06-05 11:08:10,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069746874] [2021-06-05 11:08:10,427 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-06-05 11:08:10,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:08:10,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-06-05 11:08:10,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=795, Unknown=0, NotChecked=0, Total=870 [2021-06-05 11:08:10,427 INFO L87 Difference]: Start difference. First operand 123331 states and 380554 transitions. Second operand has 30 states, 30 states have (on average 3.433333333333333) internal successors, (103), 30 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:08:11,479 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 60 [2021-06-05 11:08:12,037 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 64 [2021-06-05 11:08:12,529 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 68 [2021-06-05 11:08:12,711 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 72 [2021-06-05 11:08:12,902 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 74 [2021-06-05 11:08:13,076 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 74 [2021-06-05 11:08:13,285 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 78 [2021-06-05 11:08:13,471 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 79 [2021-06-05 11:08:13,692 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 80 [2021-06-05 11:08:13,881 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 79 [2021-06-05 11:08:14,045 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 71 [2021-06-05 11:08:14,280 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 83 [2021-06-05 11:08:14,479 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 83 [2021-06-05 11:08:14,719 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 77 [2021-06-05 11:08:14,926 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 85 [2021-06-05 11:08:15,124 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 76 [2021-06-05 11:08:15,368 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 88 [2021-06-05 11:08:15,625 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 82 [2021-06-05 11:08:15,826 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 82 [2021-06-05 11:08:16,067 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 89 [2021-06-05 11:08:16,299 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 87 [2021-06-05 11:08:16,519 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 93 [2021-06-05 11:08:16,790 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 95 [2021-06-05 11:08:17,112 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 98 [2021-06-05 11:08:17,405 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 92 [2021-06-05 11:08:17,822 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 97 [2021-06-05 11:08:19,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:08:19,026 INFO L93 Difference]: Finished difference Result 163909 states and 505400 transitions. [2021-06-05 11:08:19,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-06-05 11:08:19,027 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.433333333333333) internal successors, (103), 30 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-06-05 11:08:19,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:08:19,427 INFO L225 Difference]: With dead ends: 163909 [2021-06-05 11:08:19,427 INFO L226 Difference]: Without dead ends: 163909 [2021-06-05 11:08:19,428 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 649 ImplicationChecksByTransitivity, 6292.6ms TimeCoverageRelationStatistics Valid=1457, Invalid=3513, Unknown=0, NotChecked=0, Total=4970 [2021-06-05 11:08:20,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163909 states. [2021-06-05 11:08:21,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163909 to 126481. [2021-06-05 11:08:21,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126481 states, 126477 states have (on average 3.086798390221147) internal successors, (390409), 126480 states have internal predecessors, (390409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:08:22,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126481 states to 126481 states and 390409 transitions. [2021-06-05 11:08:22,243 INFO L78 Accepts]: Start accepts. Automaton has 126481 states and 390409 transitions. Word has length 103 [2021-06-05 11:08:22,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:08:22,244 INFO L482 AbstractCegarLoop]: Abstraction has 126481 states and 390409 transitions. [2021-06-05 11:08:22,244 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 3.433333333333333) internal successors, (103), 30 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:08:22,244 INFO L276 IsEmpty]: Start isEmpty. Operand 126481 states and 390409 transitions. [2021-06-05 11:08:22,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-06-05 11:08:22,332 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:08:22,332 INFO L521 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] [2021-06-05 11:08:22,332 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-06-05 11:08:22,332 INFO L430 AbstractCegarLoop]: === Iteration 22 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:08:22,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:08:22,333 INFO L82 PathProgramCache]: Analyzing trace with hash -175333365, now seen corresponding path program 16 times [2021-06-05 11:08:22,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:08:22,333 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594198178] [2021-06-05 11:08:22,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:08:22,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:08:22,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:08:22,905 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:08:22,905 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594198178] [2021-06-05 11:08:22,905 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594198178] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:08:22,905 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:08:22,905 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-05 11:08:22,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619099044] [2021-06-05 11:08:22,906 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-05 11:08:22,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:08:22,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-05 11:08:22,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=856, Unknown=0, NotChecked=0, Total=930 [2021-06-05 11:08:22,906 INFO L87 Difference]: Start difference. First operand 126481 states and 390409 transitions. Second operand has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:08:24,476 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 60 [2021-06-05 11:08:25,249 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-06-05 11:08:25,509 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 68 [2021-06-05 11:08:25,755 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 70 [2021-06-05 11:08:26,224 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 79 [2021-06-05 11:08:26,450 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 83 [2021-06-05 11:08:26,674 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 85 [2021-06-05 11:08:26,925 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 88 [2021-06-05 11:08:27,146 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 79 [2021-06-05 11:08:27,351 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 82 [2021-06-05 11:08:27,552 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 81 [2021-06-05 11:08:27,780 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 84 [2021-06-05 11:08:27,988 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 87 [2021-06-05 11:08:28,202 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 87 [2021-06-05 11:08:28,405 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 71 [2021-06-05 11:08:28,634 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 89 [2021-06-05 11:08:28,972 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 92 [2021-06-05 11:08:29,349 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 78 [2021-06-05 11:08:29,705 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 78 [2021-06-05 11:08:30,230 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 83 [2021-06-05 11:08:31,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:08:31,709 INFO L93 Difference]: Finished difference Result 171799 states and 530323 transitions. [2021-06-05 11:08:31,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:08:31,709 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-06-05 11:08:31,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:08:31,956 INFO L225 Difference]: With dead ends: 171799 [2021-06-05 11:08:31,957 INFO L226 Difference]: Without dead ends: 171799 [2021-06-05 11:08:31,957 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 787 ImplicationChecksByTransitivity, 6096.5ms TimeCoverageRelationStatistics Valid=1336, Invalid=4066, Unknown=0, NotChecked=0, Total=5402 [2021-06-05 11:08:33,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171799 states. [2021-06-05 11:08:34,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171799 to 129691. [2021-06-05 11:08:34,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129691 states, 129687 states have (on average 3.0889449212334315) internal successors, (400596), 129690 states have internal predecessors, (400596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:08:35,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129691 states to 129691 states and 400596 transitions. [2021-06-05 11:08:35,267 INFO L78 Accepts]: Start accepts. Automaton has 129691 states and 400596 transitions. Word has length 103 [2021-06-05 11:08:35,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:08:35,267 INFO L482 AbstractCegarLoop]: Abstraction has 129691 states and 400596 transitions. [2021-06-05 11:08:35,267 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:08:35,267 INFO L276 IsEmpty]: Start isEmpty. Operand 129691 states and 400596 transitions. [2021-06-05 11:08:35,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-06-05 11:08:35,356 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:08:35,356 INFO L521 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] [2021-06-05 11:08:35,356 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-06-05 11:08:35,356 INFO L430 AbstractCegarLoop]: === Iteration 23 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:08:35,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:08:35,357 INFO L82 PathProgramCache]: Analyzing trace with hash 316857905, now seen corresponding path program 17 times [2021-06-05 11:08:35,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:08:35,357 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226546568] [2021-06-05 11:08:35,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:08:35,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:08:36,104 WARN L205 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 20 [2021-06-05 11:08:36,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:08:36,325 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:08:36,325 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226546568] [2021-06-05 11:08:36,325 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226546568] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:08:36,325 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:08:36,325 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-05 11:08:36,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356049787] [2021-06-05 11:08:36,326 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-05 11:08:36,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:08:36,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-05 11:08:36,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=856, Unknown=0, NotChecked=0, Total=930 [2021-06-05 11:08:36,326 INFO L87 Difference]: Start difference. First operand 129691 states and 400596 transitions. Second operand has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:08:37,496 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 60 [2021-06-05 11:08:38,217 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-06-05 11:08:38,475 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 68 [2021-06-05 11:08:38,875 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 70 [2021-06-05 11:08:39,082 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 74 [2021-06-05 11:08:39,302 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 79 [2021-06-05 11:08:39,533 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 79 [2021-06-05 11:08:39,729 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 81 [2021-06-05 11:08:39,961 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 81 [2021-06-05 11:08:40,169 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 84 [2021-06-05 11:08:40,397 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 83 [2021-06-05 11:08:40,593 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 77 [2021-06-05 11:08:40,855 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 86 [2021-06-05 11:08:41,103 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 82 [2021-06-05 11:08:41,339 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 82 [2021-06-05 11:08:41,583 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 85 [2021-06-05 11:08:41,807 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 87 [2021-06-05 11:08:42,037 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 87 [2021-06-05 11:08:42,359 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 90 [2021-06-05 11:08:44,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:08:44,510 INFO L93 Difference]: Finished difference Result 169189 states and 521956 transitions. [2021-06-05 11:08:44,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-06-05 11:08:44,511 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-06-05 11:08:44,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:08:44,753 INFO L225 Difference]: With dead ends: 169189 [2021-06-05 11:08:44,754 INFO L226 Difference]: Without dead ends: 169189 [2021-06-05 11:08:44,754 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 743 ImplicationChecksByTransitivity, 5952.7ms TimeCoverageRelationStatistics Valid=1305, Invalid=3951, Unknown=0, NotChecked=0, Total=5256 [2021-06-05 11:08:45,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169189 states. [2021-06-05 11:08:47,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169189 to 130111. [2021-06-05 11:08:47,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130111 states, 130107 states have (on average 3.088304241893211) internal successors, (401810), 130110 states have internal predecessors, (401810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:08:48,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130111 states to 130111 states and 401810 transitions. [2021-06-05 11:08:48,057 INFO L78 Accepts]: Start accepts. Automaton has 130111 states and 401810 transitions. Word has length 103 [2021-06-05 11:08:48,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:08:48,058 INFO L482 AbstractCegarLoop]: Abstraction has 130111 states and 401810 transitions. [2021-06-05 11:08:48,058 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:08:48,058 INFO L276 IsEmpty]: Start isEmpty. Operand 130111 states and 401810 transitions. [2021-06-05 11:08:48,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-06-05 11:08:48,142 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:08:48,142 INFO L521 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] [2021-06-05 11:08:48,142 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-06-05 11:08:48,142 INFO L430 AbstractCegarLoop]: === Iteration 24 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:08:48,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:08:48,143 INFO L82 PathProgramCache]: Analyzing trace with hash 2047994303, now seen corresponding path program 18 times [2021-06-05 11:08:48,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:08:48,143 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747067601] [2021-06-05 11:08:48,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:08:48,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:08:48,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:08:48,724 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:08:48,724 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747067601] [2021-06-05 11:08:48,724 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747067601] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:08:48,724 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:08:48,724 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-05 11:08:48,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610698671] [2021-06-05 11:08:48,724 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-05 11:08:48,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:08:48,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-05 11:08:48,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=857, Unknown=0, NotChecked=0, Total=930 [2021-06-05 11:08:48,725 INFO L87 Difference]: Start difference. First operand 130111 states and 401810 transitions. Second operand has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:08:49,883 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 60 [2021-06-05 11:08:50,780 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-06-05 11:08:51,022 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 68 [2021-06-05 11:08:51,253 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 70 [2021-06-05 11:08:51,457 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 74 [2021-06-05 11:08:51,680 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 79 [2021-06-05 11:08:51,911 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 79 [2021-06-05 11:08:52,113 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 81 [2021-06-05 11:08:52,344 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 84 [2021-06-05 11:08:52,559 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 84 [2021-06-05 11:08:52,891 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 86 [2021-06-05 11:08:53,086 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 77 [2021-06-05 11:08:53,347 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 89 [2021-06-05 11:08:53,593 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 82 [2021-06-05 11:08:53,802 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 82 [2021-06-05 11:08:54,014 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 80 [2021-06-05 11:08:54,235 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 85 [2021-06-05 11:08:54,464 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 87 [2021-06-05 11:08:54,699 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 87 [2021-06-05 11:08:55,103 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 90 [2021-06-05 11:08:55,517 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 83 [2021-06-05 11:08:56,185 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 88 [2021-06-05 11:08:57,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:08:57,645 INFO L93 Difference]: Finished difference Result 169099 states and 521623 transitions. [2021-06-05 11:08:57,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-06-05 11:08:57,647 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-06-05 11:08:57,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:08:57,884 INFO L225 Difference]: With dead ends: 169099 [2021-06-05 11:08:57,884 INFO L226 Difference]: Without dead ends: 169099 [2021-06-05 11:08:57,884 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 825 ImplicationChecksByTransitivity, 6127.7ms TimeCoverageRelationStatistics Valid=1428, Invalid=4272, Unknown=0, NotChecked=0, Total=5700 [2021-06-05 11:08:58,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169099 states. [2021-06-05 11:09:00,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169099 to 130141. [2021-06-05 11:09:00,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130141 states, 130137 states have (on average 3.088291569653519) internal successors, (401901), 130140 states have internal predecessors, (401901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:09:00,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130141 states to 130141 states and 401901 transitions. [2021-06-05 11:09:00,792 INFO L78 Accepts]: Start accepts. Automaton has 130141 states and 401901 transitions. Word has length 103 [2021-06-05 11:09:00,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:09:00,792 INFO L482 AbstractCegarLoop]: Abstraction has 130141 states and 401901 transitions. [2021-06-05 11:09:00,793 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:09:00,793 INFO L276 IsEmpty]: Start isEmpty. Operand 130141 states and 401901 transitions. [2021-06-05 11:09:00,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-06-05 11:09:00,886 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:09:00,886 INFO L521 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] [2021-06-05 11:09:00,886 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-06-05 11:09:00,886 INFO L430 AbstractCegarLoop]: === Iteration 25 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:09:00,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:09:00,886 INFO L82 PathProgramCache]: Analyzing trace with hash -770770145, now seen corresponding path program 19 times [2021-06-05 11:09:00,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:09:00,886 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982694521] [2021-06-05 11:09:00,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:09:00,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:09:01,623 WARN L205 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 23 [2021-06-05 11:09:01,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:09:01,934 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:09:01,934 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982694521] [2021-06-05 11:09:01,934 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982694521] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:09:01,934 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:09:01,935 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-05 11:09:01,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909296165] [2021-06-05 11:09:01,935 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-05 11:09:01,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:09:01,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-05 11:09:01,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=854, Unknown=0, NotChecked=0, Total=930 [2021-06-05 11:09:01,935 INFO L87 Difference]: Start difference. First operand 130141 states and 401901 transitions. Second operand has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:09:03,098 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 60 [2021-06-05 11:09:03,811 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 64 [2021-06-05 11:09:04,061 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 68 [2021-06-05 11:09:04,481 WARN L205 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 68 [2021-06-05 11:09:04,672 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 70 [2021-06-05 11:09:04,839 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 72 [2021-06-05 11:09:05,046 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 74 [2021-06-05 11:09:05,228 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 74 [2021-06-05 11:09:05,454 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 78 [2021-06-05 11:09:05,658 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 79 [2021-06-05 11:09:05,901 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 80 [2021-06-05 11:09:06,093 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 79 [2021-06-05 11:09:06,271 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 71 [2021-06-05 11:09:06,523 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 83 [2021-06-05 11:09:06,729 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 83 [2021-06-05 11:09:06,969 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 77 [2021-06-05 11:09:07,180 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 85 [2021-06-05 11:09:07,387 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 78 [2021-06-05 11:09:07,637 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 88 [2021-06-05 11:09:07,908 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 82 [2021-06-05 11:09:08,111 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 82 [2021-06-05 11:09:08,368 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 89 [2021-06-05 11:09:08,601 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 87 [2021-06-05 11:09:08,832 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 93 [2021-06-05 11:09:09,119 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 95 [2021-06-05 11:09:09,446 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 98 [2021-06-05 11:09:09,760 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 92 [2021-06-05 11:09:10,214 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 97 [2021-06-05 11:09:11,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:09:11,712 INFO L93 Difference]: Finished difference Result 169579 states and 523049 transitions. [2021-06-05 11:09:11,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:09:11,712 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-06-05 11:09:11,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:09:11,941 INFO L225 Difference]: With dead ends: 169579 [2021-06-05 11:09:11,941 INFO L226 Difference]: Without dead ends: 169579 [2021-06-05 11:09:11,941 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 665 ImplicationChecksByTransitivity, 7423.7ms TimeCoverageRelationStatistics Valid=1554, Invalid=3848, Unknown=0, NotChecked=0, Total=5402 [2021-06-05 11:09:12,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169579 states. [2021-06-05 11:09:14,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169579 to 127291. [2021-06-05 11:09:14,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127291 states, 127287 states have (on average 3.0871652250426203) internal successors, (392956), 127290 states have internal predecessors, (392956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:09:14,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127291 states to 127291 states and 392956 transitions. [2021-06-05 11:09:14,784 INFO L78 Accepts]: Start accepts. Automaton has 127291 states and 392956 transitions. Word has length 103 [2021-06-05 11:09:14,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:09:14,784 INFO L482 AbstractCegarLoop]: Abstraction has 127291 states and 392956 transitions. [2021-06-05 11:09:14,784 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:09:14,784 INFO L276 IsEmpty]: Start isEmpty. Operand 127291 states and 392956 transitions. [2021-06-05 11:09:14,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-06-05 11:09:14,871 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:09:14,871 INFO L521 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] [2021-06-05 11:09:14,871 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-06-05 11:09:14,872 INFO L430 AbstractCegarLoop]: === Iteration 26 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:09:14,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:09:14,872 INFO L82 PathProgramCache]: Analyzing trace with hash -625103349, now seen corresponding path program 20 times [2021-06-05 11:09:14,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:09:14,872 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967218959] [2021-06-05 11:09:14,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:09:14,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:09:15,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:09:15,398 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:09:15,398 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967218959] [2021-06-05 11:09:15,398 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967218959] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:09:15,398 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:09:15,399 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-05 11:09:15,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562931238] [2021-06-05 11:09:15,399 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-05 11:09:15,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:09:15,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-05 11:09:15,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=856, Unknown=0, NotChecked=0, Total=930 [2021-06-05 11:09:15,399 INFO L87 Difference]: Start difference. First operand 127291 states and 392956 transitions. Second operand has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:09:16,929 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 60 [2021-06-05 11:09:17,638 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-06-05 11:09:17,885 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 68 [2021-06-05 11:09:18,122 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 70 [2021-06-05 11:09:18,595 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 74 [2021-06-05 11:09:18,849 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 80 [2021-06-05 11:09:19,062 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 85 [2021-06-05 11:09:19,375 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 87 [2021-06-05 11:09:19,742 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 90 [2021-06-05 11:09:20,108 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 83 [2021-06-05 11:09:20,562 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 88 [2021-06-05 11:09:21,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:09:21,836 INFO L93 Difference]: Finished difference Result 166549 states and 513528 transitions. [2021-06-05 11:09:21,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-05 11:09:21,836 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-06-05 11:09:21,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:09:22,079 INFO L225 Difference]: With dead ends: 166549 [2021-06-05 11:09:22,079 INFO L226 Difference]: Without dead ends: 166549 [2021-06-05 11:09:22,080 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 570 ImplicationChecksByTransitivity, 3670.4ms TimeCoverageRelationStatistics Valid=915, Invalid=3245, Unknown=0, NotChecked=0, Total=4160 [2021-06-05 11:09:23,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166549 states. [2021-06-05 11:09:24,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166549 to 127771. [2021-06-05 11:09:24,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127771 states, 127767 states have (on average 3.086962987312843) internal successors, (394412), 127770 states have internal predecessors, (394412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:09:25,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127771 states to 127771 states and 394412 transitions. [2021-06-05 11:09:25,399 INFO L78 Accepts]: Start accepts. Automaton has 127771 states and 394412 transitions. Word has length 103 [2021-06-05 11:09:25,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:09:25,400 INFO L482 AbstractCegarLoop]: Abstraction has 127771 states and 394412 transitions. [2021-06-05 11:09:25,400 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:09:25,400 INFO L276 IsEmpty]: Start isEmpty. Operand 127771 states and 394412 transitions. [2021-06-05 11:09:25,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-06-05 11:09:25,484 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:09:25,484 INFO L521 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] [2021-06-05 11:09:25,484 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-06-05 11:09:25,484 INFO L430 AbstractCegarLoop]: === Iteration 27 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:09:25,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:09:25,485 INFO L82 PathProgramCache]: Analyzing trace with hash 851099499, now seen corresponding path program 21 times [2021-06-05 11:09:25,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:09:25,485 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939481908] [2021-06-05 11:09:25,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:09:25,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:09:26,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:09:26,094 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:09:26,094 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939481908] [2021-06-05 11:09:26,094 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939481908] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:09:26,094 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:09:26,094 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-06-05 11:09:26,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317227250] [2021-06-05 11:09:26,094 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-06-05 11:09:26,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:09:26,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-06-05 11:09:26,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=799, Unknown=0, NotChecked=0, Total=870 [2021-06-05 11:09:26,095 INFO L87 Difference]: Start difference. First operand 127771 states and 394412 transitions. Second operand has 30 states, 30 states have (on average 3.433333333333333) internal successors, (103), 30 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:09:27,193 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 60 [2021-06-05 11:09:28,033 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 64 [2021-06-05 11:09:28,270 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 68 [2021-06-05 11:09:28,471 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 68 [2021-06-05 11:09:28,654 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 70 [2021-06-05 11:09:28,820 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 72 [2021-06-05 11:09:29,019 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 74 [2021-06-05 11:09:29,200 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 76 [2021-06-05 11:09:29,410 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 78 [2021-06-05 11:09:29,608 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 81 [2021-06-05 11:09:29,839 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 82 [2021-06-05 11:09:30,102 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 79 [2021-06-05 11:09:30,283 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 71 [2021-06-05 11:09:30,523 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 85 [2021-06-05 11:09:30,723 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 83 [2021-06-05 11:09:30,939 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 77 [2021-06-05 11:09:31,151 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 87 [2021-06-05 11:09:31,345 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 83 [2021-06-05 11:09:31,531 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 78 [2021-06-05 11:09:31,782 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 90 [2021-06-05 11:09:32,053 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 82 [2021-06-05 11:09:32,259 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 82 [2021-06-05 11:09:32,586 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 89 [2021-06-05 11:09:32,827 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 87 [2021-06-05 11:09:33,048 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 93 [2021-06-05 11:09:33,335 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 97 [2021-06-05 11:09:33,632 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 100 [2021-06-05 11:09:33,903 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 92 [2021-06-05 11:09:34,284 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 97 [2021-06-05 11:09:35,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:09:35,790 INFO L93 Difference]: Finished difference Result 166273 states and 512713 transitions. [2021-06-05 11:09:35,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-06-05 11:09:35,791 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.433333333333333) internal successors, (103), 30 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-06-05 11:09:35,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:09:36,047 INFO L225 Difference]: With dead ends: 166273 [2021-06-05 11:09:36,048 INFO L226 Difference]: Without dead ends: 166273 [2021-06-05 11:09:36,048 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 679 ImplicationChecksByTransitivity, 6955.0ms TimeCoverageRelationStatistics Valid=1574, Invalid=3828, Unknown=0, NotChecked=0, Total=5402 [2021-06-05 11:09:37,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166273 states. [2021-06-05 11:09:38,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166273 to 129733. [2021-06-05 11:09:38,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129733 states, 129729 states have (on average 3.086457152988152) internal successors, (400403), 129732 states have internal predecessors, (400403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:09:39,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129733 states to 129733 states and 400403 transitions. [2021-06-05 11:09:39,445 INFO L78 Accepts]: Start accepts. Automaton has 129733 states and 400403 transitions. Word has length 103 [2021-06-05 11:09:39,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:09:39,445 INFO L482 AbstractCegarLoop]: Abstraction has 129733 states and 400403 transitions. [2021-06-05 11:09:39,445 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 3.433333333333333) internal successors, (103), 30 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:09:39,445 INFO L276 IsEmpty]: Start isEmpty. Operand 129733 states and 400403 transitions. [2021-06-05 11:09:39,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-06-05 11:09:39,555 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:09:39,555 INFO L521 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] [2021-06-05 11:09:39,555 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-06-05 11:09:39,555 INFO L430 AbstractCegarLoop]: === Iteration 28 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:09:39,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:09:39,556 INFO L82 PathProgramCache]: Analyzing trace with hash -847281923, now seen corresponding path program 22 times [2021-06-05 11:09:39,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:09:39,556 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376698472] [2021-06-05 11:09:39,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:09:39,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:09:40,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:09:40,310 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:09:40,310 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376698472] [2021-06-05 11:09:40,310 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376698472] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:09:40,310 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:09:40,310 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-05 11:09:40,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370409490] [2021-06-05 11:09:40,310 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-05 11:09:40,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:09:40,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-05 11:09:40,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=849, Unknown=0, NotChecked=0, Total=930 [2021-06-05 11:09:40,311 INFO L87 Difference]: Start difference. First operand 129733 states and 400403 transitions. Second operand has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:09:41,520 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 65 [2021-06-05 11:09:41,855 WARN L205 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 62 [2021-06-05 11:09:42,065 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 66 [2021-06-05 11:09:42,305 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 68 [2021-06-05 11:09:42,702 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 81 [2021-06-05 11:09:42,859 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 65 [2021-06-05 11:09:43,152 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 70 [2021-06-05 11:09:43,353 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 73 [2021-06-05 11:09:43,537 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 70 [2021-06-05 11:09:43,703 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 66 [2021-06-05 11:09:43,867 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 75 [2021-06-05 11:09:44,093 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 78 [2021-06-05 11:09:44,311 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 70 [2021-06-05 11:09:44,542 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 73 [2021-06-05 11:09:44,745 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 75 [2021-06-05 11:09:44,950 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 70 [2021-06-05 11:09:45,162 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 78 [2021-06-05 11:09:45,356 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 75 [2021-06-05 11:09:45,547 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 74 [2021-06-05 11:09:45,728 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 78 [2021-06-05 11:09:45,936 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 80 [2021-06-05 11:09:46,142 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 74 [2021-06-05 11:09:46,347 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 76 [2021-06-05 11:09:46,587 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 83 [2021-06-05 11:09:46,854 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 78 [2021-06-05 11:09:47,084 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 79 [2021-06-05 11:09:47,318 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 77 [2021-06-05 11:09:47,544 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 80 [2021-06-05 11:09:47,760 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 79 [2021-06-05 11:09:47,957 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 73 [2021-06-05 11:09:48,276 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 83 [2021-06-05 11:09:48,504 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 83 [2021-06-05 11:09:48,760 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 82 [2021-06-05 11:09:48,980 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 77 [2021-06-05 11:09:49,276 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 85 [2021-06-05 11:09:49,491 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 85 [2021-06-05 11:09:49,703 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 78 [2021-06-05 11:09:50,028 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 88 [2021-06-05 11:09:50,344 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 82 [2021-06-05 11:09:50,578 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 82 [2021-06-05 11:09:50,890 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 89 [2021-06-05 11:09:51,195 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 87 [2021-06-05 11:09:51,444 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 93 [2021-06-05 11:09:51,844 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 95 [2021-06-05 11:09:52,247 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 98 [2021-06-05 11:09:52,630 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 92 [2021-06-05 11:09:53,136 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 97 [2021-06-05 11:09:54,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:09:54,771 INFO L93 Difference]: Finished difference Result 182389 states and 562698 transitions. [2021-06-05 11:09:54,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-06-05 11:09:54,771 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-06-05 11:09:54,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:09:55,028 INFO L225 Difference]: With dead ends: 182389 [2021-06-05 11:09:55,028 INFO L226 Difference]: Without dead ends: 182389 [2021-06-05 11:09:55,028 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1206 ImplicationChecksByTransitivity, 11049.1ms TimeCoverageRelationStatistics Valid=2635, Invalid=6107, Unknown=0, NotChecked=0, Total=8742 [2021-06-05 11:09:55,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182389 states. [2021-06-05 11:09:57,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182389 to 121141. [2021-06-05 11:09:57,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121141 states, 121137 states have (on average 3.0861834121696923) internal successors, (373851), 121140 states have internal predecessors, (373851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:09:57,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121141 states to 121141 states and 373851 transitions. [2021-06-05 11:09:57,982 INFO L78 Accepts]: Start accepts. Automaton has 121141 states and 373851 transitions. Word has length 103 [2021-06-05 11:09:57,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:09:57,982 INFO L482 AbstractCegarLoop]: Abstraction has 121141 states and 373851 transitions. [2021-06-05 11:09:57,982 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:09:57,982 INFO L276 IsEmpty]: Start isEmpty. Operand 121141 states and 373851 transitions. [2021-06-05 11:09:58,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-06-05 11:09:58,061 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:09:58,062 INFO L521 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] [2021-06-05 11:09:58,062 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-06-05 11:09:58,062 INFO L430 AbstractCegarLoop]: === Iteration 29 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:09:58,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:09:58,062 INFO L82 PathProgramCache]: Analyzing trace with hash -126691475, now seen corresponding path program 23 times [2021-06-05 11:09:58,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:09:58,062 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110032357] [2021-06-05 11:09:58,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:09:58,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:09:58,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:09:58,561 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:09:58,561 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110032357] [2021-06-05 11:09:58,561 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110032357] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:09:58,561 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:09:58,561 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-06-05 11:09:58,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252727129] [2021-06-05 11:09:58,562 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-06-05 11:09:58,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:09:58,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-06-05 11:09:58,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=793, Unknown=0, NotChecked=0, Total=870 [2021-06-05 11:09:58,562 INFO L87 Difference]: Start difference. First operand 121141 states and 373851 transitions. Second operand has 30 states, 30 states have (on average 3.433333333333333) internal successors, (103), 30 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:10:00,872 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 63 [2021-06-05 11:10:01,039 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 60 [2021-06-05 11:10:01,300 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 67 [2021-06-05 11:10:01,676 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 62 [2021-06-05 11:10:01,875 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 69 [2021-06-05 11:10:02,376 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 65 [2021-06-05 11:10:02,815 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 75 [2021-06-05 11:10:03,252 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 82 [2021-06-05 11:10:04,434 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 69 [2021-06-05 11:10:04,584 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 74 [2021-06-05 11:10:04,723 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 73 [2021-06-05 11:10:05,123 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 72 [2021-06-05 11:10:05,290 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 77 [2021-06-05 11:10:05,441 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 75 [2021-06-05 11:10:05,602 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 74 [2021-06-05 11:10:05,850 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 68 [2021-06-05 11:10:06,035 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 74 [2021-06-05 11:10:06,229 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 79 [2021-06-05 11:10:06,406 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 78 [2021-06-05 11:10:06,894 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 77 [2021-06-05 11:10:07,102 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 82 [2021-06-05 11:10:07,248 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 73 [2021-06-05 11:10:07,643 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 72 [2021-06-05 11:10:07,842 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 72 [2021-06-05 11:10:08,025 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 77 [2021-06-05 11:10:08,176 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 74 [2021-06-05 11:10:08,473 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 73 [2021-06-05 11:10:08,662 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 78 [2021-06-05 11:10:08,976 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 74 [2021-06-05 11:10:09,166 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 76 [2021-06-05 11:10:09,366 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 77 [2021-06-05 11:10:09,571 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 82 [2021-06-05 11:10:09,921 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 77 [2021-06-05 11:10:10,127 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 78 [2021-06-05 11:10:10,394 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 82 [2021-06-05 11:10:10,624 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 83 [2021-06-05 11:10:10,916 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 84 [2021-06-05 11:10:11,122 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 83 [2021-06-05 11:10:11,318 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 76 [2021-06-05 11:10:11,630 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 87 [2021-06-05 11:10:11,851 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 87 [2021-06-05 11:10:12,152 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 81 [2021-06-05 11:10:12,391 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 89 [2021-06-05 11:10:12,594 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 87 [2021-06-05 11:10:12,811 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 81 [2021-06-05 11:10:13,143 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 92 [2021-06-05 11:10:13,483 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 86 [2021-06-05 11:10:13,711 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 86 [2021-06-05 11:10:14,029 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 93 [2021-06-05 11:10:14,336 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 91 [2021-06-05 11:10:14,603 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 97 [2021-06-05 11:10:14,950 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 99 [2021-06-05 11:10:15,334 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 102 [2021-06-05 11:10:15,713 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 96 [2021-06-05 11:10:16,238 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 101 [2021-06-05 11:10:17,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:10:17,983 INFO L93 Difference]: Finished difference Result 189065 states and 582744 transitions. [2021-06-05 11:10:17,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2021-06-05 11:10:17,983 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.433333333333333) internal successors, (103), 30 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-06-05 11:10:17,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:10:18,263 INFO L225 Difference]: With dead ends: 189065 [2021-06-05 11:10:18,263 INFO L226 Difference]: Without dead ends: 189065 [2021-06-05 11:10:18,264 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3361 ImplicationChecksByTransitivity, 14437.7ms TimeCoverageRelationStatistics Valid=4828, Invalid=12464, Unknown=0, NotChecked=0, Total=17292 [2021-06-05 11:10:19,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189065 states. [2021-06-05 11:10:20,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189065 to 132073. [2021-06-05 11:10:21,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132073 states, 132069 states have (on average 3.088014598429609) internal successors, (407831), 132072 states have internal predecessors, (407831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:10:21,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132073 states to 132073 states and 407831 transitions. [2021-06-05 11:10:21,677 INFO L78 Accepts]: Start accepts. Automaton has 132073 states and 407831 transitions. Word has length 103 [2021-06-05 11:10:21,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:10:21,678 INFO L482 AbstractCegarLoop]: Abstraction has 132073 states and 407831 transitions. [2021-06-05 11:10:21,678 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 3.433333333333333) internal successors, (103), 30 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:10:21,678 INFO L276 IsEmpty]: Start isEmpty. Operand 132073 states and 407831 transitions. [2021-06-05 11:10:21,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-06-05 11:10:21,768 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:10:21,768 INFO L521 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] [2021-06-05 11:10:21,768 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-06-05 11:10:21,768 INFO L430 AbstractCegarLoop]: === Iteration 30 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:10:21,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:10:21,769 INFO L82 PathProgramCache]: Analyzing trace with hash 569628333, now seen corresponding path program 24 times [2021-06-05 11:10:21,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:10:21,769 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342430494] [2021-06-05 11:10:21,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:10:21,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:10:22,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:10:22,334 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:10:22,334 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342430494] [2021-06-05 11:10:22,334 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342430494] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:10:22,334 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:10:22,334 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-05 11:10:22,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253906686] [2021-06-05 11:10:22,334 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-05 11:10:22,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:10:22,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-05 11:10:22,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=853, Unknown=0, NotChecked=0, Total=930 [2021-06-05 11:10:22,335 INFO L87 Difference]: Start difference. First operand 132073 states and 407831 transitions. Second operand has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:10:24,274 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 66 [2021-06-05 11:10:24,538 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 70 [2021-06-05 11:10:24,721 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 75 [2021-06-05 11:10:24,917 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 77 [2021-06-05 11:10:25,129 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 79 [2021-06-05 11:10:25,311 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 80 [2021-06-05 11:10:25,526 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 81 [2021-06-05 11:10:25,699 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 73 [2021-06-05 11:10:25,925 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 84 [2021-06-05 11:10:26,224 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 83 [2021-06-05 11:10:26,442 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 85 [2021-06-05 11:10:26,636 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 78 [2021-06-05 11:10:26,868 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 88 [2021-06-05 11:10:27,179 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 87 [2021-06-05 11:10:27,411 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 89 [2021-06-05 11:10:27,750 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 92 [2021-06-05 11:10:29,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:10:29,789 INFO L93 Difference]: Finished difference Result 161779 states and 499407 transitions. [2021-06-05 11:10:29,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-05 11:10:29,790 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-06-05 11:10:29,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:10:30,028 INFO L225 Difference]: With dead ends: 161779 [2021-06-05 11:10:30,028 INFO L226 Difference]: Without dead ends: 161779 [2021-06-05 11:10:30,028 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 695 ImplicationChecksByTransitivity, 5013.8ms TimeCoverageRelationStatistics Valid=1238, Invalid=3732, Unknown=0, NotChecked=0, Total=4970 [2021-06-05 11:10:31,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161779 states. [2021-06-05 11:10:32,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161779 to 134023. [2021-06-05 11:10:32,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134023 states, 134019 states have (on average 3.0874428252710437) internal successors, (413776), 134022 states have internal predecessors, (413776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:10:33,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134023 states to 134023 states and 413776 transitions. [2021-06-05 11:10:33,409 INFO L78 Accepts]: Start accepts. Automaton has 134023 states and 413776 transitions. Word has length 103 [2021-06-05 11:10:33,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:10:33,410 INFO L482 AbstractCegarLoop]: Abstraction has 134023 states and 413776 transitions. [2021-06-05 11:10:33,410 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:10:33,410 INFO L276 IsEmpty]: Start isEmpty. Operand 134023 states and 413776 transitions. [2021-06-05 11:10:33,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-06-05 11:10:33,508 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:10:33,508 INFO L521 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] [2021-06-05 11:10:33,508 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-06-05 11:10:33,508 INFO L430 AbstractCegarLoop]: === Iteration 31 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:10:33,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:10:33,509 INFO L82 PathProgramCache]: Analyzing trace with hash -1843516333, now seen corresponding path program 25 times [2021-06-05 11:10:33,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:10:33,509 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29361] [2021-06-05 11:10:33,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:10:33,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:10:34,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:10:34,136 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:10:34,136 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29361] [2021-06-05 11:10:34,137 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29361] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:10:34,137 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:10:34,137 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-05 11:10:34,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772614833] [2021-06-05 11:10:34,137 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-05 11:10:34,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:10:34,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-05 11:10:34,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=856, Unknown=0, NotChecked=0, Total=930 [2021-06-05 11:10:34,138 INFO L87 Difference]: Start difference. First operand 134023 states and 413776 transitions. Second operand has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:10:35,315 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 62 [2021-06-05 11:10:36,273 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 66 [2021-06-05 11:10:36,564 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 70 [2021-06-05 11:10:36,762 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 75 [2021-06-05 11:10:36,971 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 74 [2021-06-05 11:10:37,154 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 77 [2021-06-05 11:10:37,384 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 79 [2021-06-05 11:10:37,582 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 80 [2021-06-05 11:10:37,814 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 81 [2021-06-05 11:10:38,007 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 79 [2021-06-05 11:10:38,271 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 73 [2021-06-05 11:10:38,515 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 84 [2021-06-05 11:10:38,713 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 83 [2021-06-05 11:10:38,934 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 77 [2021-06-05 11:10:39,141 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 85 [2021-06-05 11:10:39,351 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 78 [2021-06-05 11:10:39,594 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 88 [2021-06-05 11:10:39,866 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 82 [2021-06-05 11:10:40,072 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 82 [2021-06-05 11:10:40,364 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 87 [2021-06-05 11:10:40,589 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 87 [2021-06-05 11:10:40,867 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 89 [2021-06-05 11:10:41,219 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 92 [2021-06-05 11:10:43,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:10:43,502 INFO L93 Difference]: Finished difference Result 164959 states and 509353 transitions. [2021-06-05 11:10:43,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-06-05 11:10:43,503 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-06-05 11:10:43,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:10:43,755 INFO L225 Difference]: With dead ends: 164959 [2021-06-05 11:10:43,755 INFO L226 Difference]: Without dead ends: 164959 [2021-06-05 11:10:43,755 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 853 ImplicationChecksByTransitivity, 6377.5ms TimeCoverageRelationStatistics Valid=1491, Invalid=4361, Unknown=0, NotChecked=0, Total=5852 [2021-06-05 11:10:44,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164959 states. [2021-06-05 11:10:46,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164959 to 134293. [2021-06-05 11:10:46,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134293 states, 134289 states have (on average 3.0875574321053847) internal successors, (414625), 134292 states have internal predecessors, (414625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:10:46,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134293 states to 134293 states and 414625 transitions. [2021-06-05 11:10:46,687 INFO L78 Accepts]: Start accepts. Automaton has 134293 states and 414625 transitions. Word has length 103 [2021-06-05 11:10:46,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:10:46,688 INFO L482 AbstractCegarLoop]: Abstraction has 134293 states and 414625 transitions. [2021-06-05 11:10:46,688 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:10:46,688 INFO L276 IsEmpty]: Start isEmpty. Operand 134293 states and 414625 transitions. [2021-06-05 11:10:46,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-06-05 11:10:46,785 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:10:46,785 INFO L521 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] [2021-06-05 11:10:46,785 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-06-05 11:10:46,785 INFO L430 AbstractCegarLoop]: === Iteration 32 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:10:46,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:10:46,785 INFO L82 PathProgramCache]: Analyzing trace with hash 379811335, now seen corresponding path program 26 times [2021-06-05 11:10:46,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:10:46,785 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098286360] [2021-06-05 11:10:46,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:10:46,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:10:47,306 WARN L205 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-06-05 11:10:47,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:10:47,836 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:10:47,836 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098286360] [2021-06-05 11:10:47,836 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098286360] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:10:47,836 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:10:47,836 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-05 11:10:47,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981643403] [2021-06-05 11:10:47,837 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-05 11:10:47,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:10:47,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-05 11:10:47,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=856, Unknown=0, NotChecked=0, Total=930 [2021-06-05 11:10:47,837 INFO L87 Difference]: Start difference. First operand 134293 states and 414625 transitions. Second operand has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:10:49,014 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 62 [2021-06-05 11:10:49,700 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 66 [2021-06-05 11:10:50,226 WARN L205 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 70 [2021-06-05 11:10:50,426 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 75 [2021-06-05 11:10:50,645 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 74 [2021-06-05 11:10:50,844 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 77 [2021-06-05 11:10:51,086 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 79 [2021-06-05 11:10:51,295 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 80 [2021-06-05 11:10:51,526 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 81 [2021-06-05 11:10:51,726 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 79 [2021-06-05 11:10:51,897 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 73 [2021-06-05 11:10:52,134 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 84 [2021-06-05 11:10:52,332 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 84 [2021-06-05 11:10:52,548 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 77 [2021-06-05 11:10:52,778 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 86 [2021-06-05 11:10:52,981 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 78 [2021-06-05 11:10:53,221 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 89 [2021-06-05 11:10:53,484 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 82 [2021-06-05 11:10:53,686 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 82 [2021-06-05 11:10:53,915 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 80 [2021-06-05 11:10:54,158 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 87 [2021-06-05 11:10:54,359 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 85 [2021-06-05 11:10:54,607 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 87 [2021-06-05 11:10:54,938 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 90 [2021-06-05 11:10:55,373 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 83 [2021-06-05 11:10:56,042 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 88 [2021-06-05 11:10:57,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:10:57,634 INFO L93 Difference]: Finished difference Result 164599 states and 508231 transitions. [2021-06-05 11:10:57,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-06-05 11:10:57,635 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-06-05 11:10:57,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:10:57,865 INFO L225 Difference]: With dead ends: 164599 [2021-06-05 11:10:57,865 INFO L226 Difference]: Without dead ends: 164599 [2021-06-05 11:10:57,866 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 953 ImplicationChecksByTransitivity, 7509.6ms TimeCoverageRelationStatistics Valid=1639, Invalid=4681, Unknown=0, NotChecked=0, Total=6320 [2021-06-05 11:10:58,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164599 states. [2021-06-05 11:11:00,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164599 to 134323. [2021-06-05 11:11:00,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134323 states, 134319 states have (on average 3.0875453212129336) internal successors, (414716), 134322 states have internal predecessors, (414716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:11:00,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134323 states to 134323 states and 414716 transitions. [2021-06-05 11:11:00,745 INFO L78 Accepts]: Start accepts. Automaton has 134323 states and 414716 transitions. Word has length 103 [2021-06-05 11:11:00,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:11:00,745 INFO L482 AbstractCegarLoop]: Abstraction has 134323 states and 414716 transitions. [2021-06-05 11:11:00,745 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:11:00,746 INFO L276 IsEmpty]: Start isEmpty. Operand 134323 states and 414716 transitions. [2021-06-05 11:11:00,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-06-05 11:11:00,837 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:11:00,837 INFO L521 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] [2021-06-05 11:11:00,837 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-06-05 11:11:00,838 INFO L430 AbstractCegarLoop]: === Iteration 33 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:11:00,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:11:00,838 INFO L82 PathProgramCache]: Analyzing trace with hash 1856014183, now seen corresponding path program 27 times [2021-06-05 11:11:00,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:11:00,838 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469982661] [2021-06-05 11:11:00,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:11:00,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:11:01,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:11:01,770 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:11:01,770 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469982661] [2021-06-05 11:11:01,770 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469982661] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:11:01,770 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:11:01,770 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-06-05 11:11:01,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880775142] [2021-06-05 11:11:01,770 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-06-05 11:11:01,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:11:01,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-06-05 11:11:01,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=795, Unknown=0, NotChecked=0, Total=870 [2021-06-05 11:11:01,771 INFO L87 Difference]: Start difference. First operand 134323 states and 414716 transitions. Second operand has 30 states, 30 states have (on average 3.433333333333333) internal successors, (103), 30 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:11:02,853 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 62 [2021-06-05 11:11:03,452 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 66 [2021-06-05 11:11:03,712 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 70 [2021-06-05 11:11:03,897 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 74 [2021-06-05 11:11:04,267 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 74 [2021-06-05 11:11:04,441 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 76 [2021-06-05 11:11:04,658 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 78 [2021-06-05 11:11:04,843 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 79 [2021-06-05 11:11:05,066 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 80 [2021-06-05 11:11:05,253 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 79 [2021-06-05 11:11:05,417 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 73 [2021-06-05 11:11:05,657 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 83 [2021-06-05 11:11:05,857 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 83 [2021-06-05 11:11:06,087 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 77 [2021-06-05 11:11:06,297 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 85 [2021-06-05 11:11:06,492 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 78 [2021-06-05 11:11:06,763 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 88 [2021-06-05 11:11:07,023 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 82 [2021-06-05 11:11:07,226 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 82 [2021-06-05 11:11:07,468 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 89 [2021-06-05 11:11:07,699 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 87 [2021-06-05 11:11:07,917 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 93 [2021-06-05 11:11:08,186 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 95 [2021-06-05 11:11:08,472 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 98 [2021-06-05 11:11:08,764 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 92 [2021-06-05 11:11:09,218 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 97 [2021-06-05 11:11:10,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:11:10,476 INFO L93 Difference]: Finished difference Result 163669 states and 505320 transitions. [2021-06-05 11:11:10,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-06-05 11:11:10,476 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.433333333333333) internal successors, (103), 30 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-06-05 11:11:10,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:11:10,712 INFO L225 Difference]: With dead ends: 163669 [2021-06-05 11:11:10,712 INFO L226 Difference]: Without dead ends: 163669 [2021-06-05 11:11:10,713 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 649 ImplicationChecksByTransitivity, 6782.6ms TimeCoverageRelationStatistics Valid=1457, Invalid=3513, Unknown=0, NotChecked=0, Total=4970 [2021-06-05 11:11:11,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163669 states. [2021-06-05 11:11:13,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163669 to 137473. [2021-06-05 11:11:13,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137473 states, 137469 states have (on average 3.0884854039819887) internal successors, (424571), 137472 states have internal predecessors, (424571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:11:13,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137473 states to 137473 states and 424571 transitions. [2021-06-05 11:11:13,925 INFO L78 Accepts]: Start accepts. Automaton has 137473 states and 424571 transitions. Word has length 103 [2021-06-05 11:11:13,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:11:13,925 INFO L482 AbstractCegarLoop]: Abstraction has 137473 states and 424571 transitions. [2021-06-05 11:11:13,925 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 3.433333333333333) internal successors, (103), 30 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:11:13,925 INFO L276 IsEmpty]: Start isEmpty. Operand 137473 states and 424571 transitions. [2021-06-05 11:11:14,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-06-05 11:11:14,024 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:11:14,025 INFO L521 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] [2021-06-05 11:11:14,025 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-06-05 11:11:14,025 INFO L430 AbstractCegarLoop]: === Iteration 34 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:11:14,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:11:14,025 INFO L82 PathProgramCache]: Analyzing trace with hash -1123114259, now seen corresponding path program 28 times [2021-06-05 11:11:14,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:11:14,025 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613158680] [2021-06-05 11:11:14,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:11:14,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:11:14,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:11:14,588 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:11:14,588 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613158680] [2021-06-05 11:11:14,588 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613158680] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:11:14,588 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:11:14,588 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-05 11:11:14,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084798448] [2021-06-05 11:11:14,588 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-05 11:11:14,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:11:14,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-05 11:11:14,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=856, Unknown=0, NotChecked=0, Total=930 [2021-06-05 11:11:14,589 INFO L87 Difference]: Start difference. First operand 137473 states and 424571 transitions. Second operand has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:11:15,881 WARN L205 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 58 [2021-06-05 11:11:16,033 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 62 [2021-06-05 11:11:16,758 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 66 [2021-06-05 11:11:17,013 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 70 [2021-06-05 11:11:17,247 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 72 [2021-06-05 11:11:17,562 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 79 [2021-06-05 11:11:17,787 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 83 [2021-06-05 11:11:18,006 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 85 [2021-06-05 11:11:18,368 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 88 [2021-06-05 11:11:18,606 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 79 [2021-06-05 11:11:18,808 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 82 [2021-06-05 11:11:19,013 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 81 [2021-06-05 11:11:19,243 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 84 [2021-06-05 11:11:19,452 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 87 [2021-06-05 11:11:19,682 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 87 [2021-06-05 11:11:19,880 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 73 [2021-06-05 11:11:20,086 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 89 [2021-06-05 11:11:20,423 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 92 [2021-06-05 11:11:20,827 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 78 [2021-06-05 11:11:21,184 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 78 [2021-06-05 11:11:21,711 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 83 [2021-06-05 11:11:23,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:11:23,300 INFO L93 Difference]: Finished difference Result 171559 states and 530243 transitions. [2021-06-05 11:11:23,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:11:23,301 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-06-05 11:11:23,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:11:23,542 INFO L225 Difference]: With dead ends: 171559 [2021-06-05 11:11:23,542 INFO L226 Difference]: Without dead ends: 171559 [2021-06-05 11:11:23,542 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 787 ImplicationChecksByTransitivity, 5989.2ms TimeCoverageRelationStatistics Valid=1336, Invalid=4066, Unknown=0, NotChecked=0, Total=5402 [2021-06-05 11:11:24,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171559 states. [2021-06-05 11:11:26,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171559 to 140683. [2021-06-05 11:11:26,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140683 states, 140679 states have (on average 3.090425720967593) internal successors, (434758), 140682 states have internal predecessors, (434758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:11:26,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140683 states to 140683 states and 434758 transitions. [2021-06-05 11:11:26,555 INFO L78 Accepts]: Start accepts. Automaton has 140683 states and 434758 transitions. Word has length 103 [2021-06-05 11:11:26,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:11:26,556 INFO L482 AbstractCegarLoop]: Abstraction has 140683 states and 434758 transitions. [2021-06-05 11:11:26,556 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:11:26,556 INFO L276 IsEmpty]: Start isEmpty. Operand 140683 states and 434758 transitions. [2021-06-05 11:11:26,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-06-05 11:11:26,661 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:11:26,661 INFO L521 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] [2021-06-05 11:11:26,661 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-06-05 11:11:26,661 INFO L430 AbstractCegarLoop]: === Iteration 35 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:11:26,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:11:26,662 INFO L82 PathProgramCache]: Analyzing trace with hash -630922989, now seen corresponding path program 29 times [2021-06-05 11:11:26,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:11:26,662 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675220826] [2021-06-05 11:11:26,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:11:26,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:11:27,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:11:27,751 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:11:27,751 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675220826] [2021-06-05 11:11:27,751 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675220826] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:11:27,751 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:11:27,751 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-05 11:11:27,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993285532] [2021-06-05 11:11:27,752 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-05 11:11:27,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:11:27,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-05 11:11:27,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=856, Unknown=0, NotChecked=0, Total=930 [2021-06-05 11:11:27,752 INFO L87 Difference]: Start difference. First operand 140683 states and 434758 transitions. Second operand has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:11:28,901 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 62 [2021-06-05 11:11:29,579 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 66 [2021-06-05 11:11:29,826 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 70 [2021-06-05 11:11:30,278 WARN L205 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 72 [2021-06-05 11:11:30,490 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 74 [2021-06-05 11:11:30,718 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 79 [2021-06-05 11:11:30,948 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 79 [2021-06-05 11:11:31,145 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 81 [2021-06-05 11:11:31,376 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 81 [2021-06-05 11:11:31,588 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 84 [2021-06-05 11:11:31,813 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 83 [2021-06-05 11:11:32,008 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 77 [2021-06-05 11:11:32,264 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 86 [2021-06-05 11:11:32,514 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 82 [2021-06-05 11:11:32,742 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 82 [2021-06-05 11:11:32,988 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 85 [2021-06-05 11:11:33,213 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 87 [2021-06-05 11:11:33,441 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 87 [2021-06-05 11:11:33,761 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 90 [2021-06-05 11:11:35,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:11:35,860 INFO L93 Difference]: Finished difference Result 168949 states and 521876 transitions. [2021-06-05 11:11:35,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-06-05 11:11:35,861 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-06-05 11:11:35,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:11:36,121 INFO L225 Difference]: With dead ends: 168949 [2021-06-05 11:11:36,121 INFO L226 Difference]: Without dead ends: 168949 [2021-06-05 11:11:36,121 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 743 ImplicationChecksByTransitivity, 6140.5ms TimeCoverageRelationStatistics Valid=1305, Invalid=3951, Unknown=0, NotChecked=0, Total=5256 [2021-06-05 11:11:37,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168949 states. [2021-06-05 11:11:38,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168949 to 141103. [2021-06-05 11:11:38,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141103 states, 141099 states have (on average 3.0898305445113006) internal successors, (435972), 141102 states have internal predecessors, (435972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:11:39,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141103 states to 141103 states and 435972 transitions. [2021-06-05 11:11:39,615 INFO L78 Accepts]: Start accepts. Automaton has 141103 states and 435972 transitions. Word has length 103 [2021-06-05 11:11:39,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:11:39,615 INFO L482 AbstractCegarLoop]: Abstraction has 141103 states and 435972 transitions. [2021-06-05 11:11:39,616 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:11:39,616 INFO L276 IsEmpty]: Start isEmpty. Operand 141103 states and 435972 transitions. [2021-06-05 11:11:39,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-06-05 11:11:39,761 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:11:39,761 INFO L521 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] [2021-06-05 11:11:39,761 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-06-05 11:11:39,761 INFO L430 AbstractCegarLoop]: === Iteration 36 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:11:39,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:11:39,762 INFO L82 PathProgramCache]: Analyzing trace with hash 1100213409, now seen corresponding path program 30 times [2021-06-05 11:11:39,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:11:39,762 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140558895] [2021-06-05 11:11:39,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:11:39,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:11:40,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:11:40,344 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:11:40,345 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140558895] [2021-06-05 11:11:40,345 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140558895] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:11:40,345 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:11:40,345 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-05 11:11:40,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212638830] [2021-06-05 11:11:40,345 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-05 11:11:40,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:11:40,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-05 11:11:40,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=857, Unknown=0, NotChecked=0, Total=930 [2021-06-05 11:11:40,346 INFO L87 Difference]: Start difference. First operand 141103 states and 435972 transitions. Second operand has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:11:41,512 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 62 [2021-06-05 11:11:42,481 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 66 [2021-06-05 11:11:42,730 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 70 [2021-06-05 11:11:42,963 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 72 [2021-06-05 11:11:43,180 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 74 [2021-06-05 11:11:43,415 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 79 [2021-06-05 11:11:43,651 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 79 [2021-06-05 11:11:43,854 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 81 [2021-06-05 11:11:44,088 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 84 [2021-06-05 11:11:44,303 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 84 [2021-06-05 11:11:44,612 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 86 [2021-06-05 11:11:44,808 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 77 [2021-06-05 11:11:45,068 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 89 [2021-06-05 11:11:45,320 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 82 [2021-06-05 11:11:45,529 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 82 [2021-06-05 11:11:45,741 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 80 [2021-06-05 11:11:45,961 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 85 [2021-06-05 11:11:46,189 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 87 [2021-06-05 11:11:46,420 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 87 [2021-06-05 11:11:46,749 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 90 [2021-06-05 11:11:47,195 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 83 [2021-06-05 11:11:47,879 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 88 [2021-06-05 11:11:49,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:11:49,432 INFO L93 Difference]: Finished difference Result 168859 states and 521543 transitions. [2021-06-05 11:11:49,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-06-05 11:11:49,432 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-06-05 11:11:49,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:11:49,669 INFO L225 Difference]: With dead ends: 168859 [2021-06-05 11:11:49,670 INFO L226 Difference]: Without dead ends: 168859 [2021-06-05 11:11:49,670 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 825 ImplicationChecksByTransitivity, 6073.7ms TimeCoverageRelationStatistics Valid=1428, Invalid=4272, Unknown=0, NotChecked=0, Total=5700 [2021-06-05 11:11:50,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168859 states. [2021-06-05 11:11:52,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168859 to 141133. [2021-06-05 11:11:52,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141133 states, 141129 states have (on average 3.0898185348156653) internal successors, (436063), 141132 states have internal predecessors, (436063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:11:52,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141133 states to 141133 states and 436063 transitions. [2021-06-05 11:11:52,632 INFO L78 Accepts]: Start accepts. Automaton has 141133 states and 436063 transitions. Word has length 103 [2021-06-05 11:11:52,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:11:52,632 INFO L482 AbstractCegarLoop]: Abstraction has 141133 states and 436063 transitions. [2021-06-05 11:11:52,632 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:11:52,632 INFO L276 IsEmpty]: Start isEmpty. Operand 141133 states and 436063 transitions. [2021-06-05 11:11:52,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-06-05 11:11:52,734 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:11:52,734 INFO L521 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] [2021-06-05 11:11:52,735 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-06-05 11:11:52,735 INFO L430 AbstractCegarLoop]: === Iteration 37 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:11:52,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:11:52,735 INFO L82 PathProgramCache]: Analyzing trace with hash -1718551039, now seen corresponding path program 31 times [2021-06-05 11:11:52,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:11:52,735 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645372624] [2021-06-05 11:11:52,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:11:52,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:11:53,468 WARN L205 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 20 [2021-06-05 11:11:53,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:11:53,836 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:11:53,836 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645372624] [2021-06-05 11:11:53,836 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645372624] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:11:53,837 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:11:53,837 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-05 11:11:53,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633086217] [2021-06-05 11:11:53,837 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-05 11:11:53,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:11:53,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-05 11:11:53,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=854, Unknown=0, NotChecked=0, Total=930 [2021-06-05 11:11:53,837 INFO L87 Difference]: Start difference. First operand 141133 states and 436063 transitions. Second operand has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:11:54,959 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 62 [2021-06-05 11:11:55,608 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 66 [2021-06-05 11:11:55,865 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 70 [2021-06-05 11:11:56,287 WARN L205 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 70 [2021-06-05 11:11:56,473 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 72 [2021-06-05 11:11:56,638 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 74 [2021-06-05 11:11:56,849 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 74 [2021-06-05 11:11:57,030 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 76 [2021-06-05 11:11:57,263 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 78 [2021-06-05 11:11:57,460 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 79 [2021-06-05 11:11:57,698 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 80 [2021-06-05 11:11:57,885 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 79 [2021-06-05 11:11:58,061 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 73 [2021-06-05 11:11:58,311 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 83 [2021-06-05 11:11:58,514 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 83 [2021-06-05 11:11:58,752 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 77 [2021-06-05 11:11:58,962 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 85 [2021-06-05 11:11:59,164 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 78 [2021-06-05 11:11:59,408 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 88 [2021-06-05 11:11:59,678 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 82 [2021-06-05 11:11:59,878 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 82 [2021-06-05 11:12:00,130 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 89 [2021-06-05 11:12:00,359 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 87 [2021-06-05 11:12:00,588 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 93 [2021-06-05 11:12:00,871 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 95 [2021-06-05 11:12:01,196 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 98 [2021-06-05 11:12:01,506 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 92 [2021-06-05 11:12:01,956 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 97 [2021-06-05 11:12:03,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:12:03,293 INFO L93 Difference]: Finished difference Result 169339 states and 522969 transitions. [2021-06-05 11:12:03,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:12:03,294 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-06-05 11:12:03,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:12:03,703 INFO L225 Difference]: With dead ends: 169339 [2021-06-05 11:12:03,703 INFO L226 Difference]: Without dead ends: 169339 [2021-06-05 11:12:03,704 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 665 ImplicationChecksByTransitivity, 7465.2ms TimeCoverageRelationStatistics Valid=1554, Invalid=3848, Unknown=0, NotChecked=0, Total=5402 [2021-06-05 11:12:04,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169339 states. [2021-06-05 11:12:06,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169339 to 138283. [2021-06-05 11:12:06,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138283 states, 138279 states have (on average 3.088813196508508) internal successors, (427118), 138282 states have internal predecessors, (427118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:12:06,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138283 states to 138283 states and 427118 transitions. [2021-06-05 11:12:06,626 INFO L78 Accepts]: Start accepts. Automaton has 138283 states and 427118 transitions. Word has length 103 [2021-06-05 11:12:06,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:12:06,627 INFO L482 AbstractCegarLoop]: Abstraction has 138283 states and 427118 transitions. [2021-06-05 11:12:06,627 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:12:06,627 INFO L276 IsEmpty]: Start isEmpty. Operand 138283 states and 427118 transitions. [2021-06-05 11:12:06,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-06-05 11:12:06,735 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:12:06,735 INFO L521 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] [2021-06-05 11:12:06,735 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-06-05 11:12:06,735 INFO L430 AbstractCegarLoop]: === Iteration 38 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:12:06,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:12:06,735 INFO L82 PathProgramCache]: Analyzing trace with hash -1572884243, now seen corresponding path program 32 times [2021-06-05 11:12:06,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:12:06,736 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728924164] [2021-06-05 11:12:06,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:12:06,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:12:07,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:12:07,315 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:12:07,315 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728924164] [2021-06-05 11:12:07,315 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728924164] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:12:07,315 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:12:07,315 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-05 11:12:07,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099493980] [2021-06-05 11:12:07,315 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-05 11:12:07,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:12:07,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-05 11:12:07,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=856, Unknown=0, NotChecked=0, Total=930 [2021-06-05 11:12:07,316 INFO L87 Difference]: Start difference. First operand 138283 states and 427118 transitions. Second operand has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:12:08,898 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 62 [2021-06-05 11:12:09,551 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 66 [2021-06-05 11:12:09,795 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 70 [2021-06-05 11:12:10,019 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 72 [2021-06-05 11:12:10,515 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 76 [2021-06-05 11:12:10,765 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 80 [2021-06-05 11:12:10,976 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 85 [2021-06-05 11:12:11,282 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 87 [2021-06-05 11:12:11,648 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 90 [2021-06-05 11:12:12,011 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 83 [2021-06-05 11:12:12,462 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 88 [2021-06-05 11:12:13,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:12:13,719 INFO L93 Difference]: Finished difference Result 166309 states and 513448 transitions. [2021-06-05 11:12:13,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-05 11:12:13,719 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-06-05 11:12:13,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:12:13,965 INFO L225 Difference]: With dead ends: 166309 [2021-06-05 11:12:13,965 INFO L226 Difference]: Without dead ends: 166309 [2021-06-05 11:12:13,965 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 570 ImplicationChecksByTransitivity, 3886.5ms TimeCoverageRelationStatistics Valid=915, Invalid=3245, Unknown=0, NotChecked=0, Total=4160 [2021-06-05 11:12:15,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166309 states. [2021-06-05 11:12:16,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166309 to 138763. [2021-06-05 11:12:16,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138763 states, 138759 states have (on average 3.0886212786197653) internal successors, (428574), 138762 states have internal predecessors, (428574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:12:17,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138763 states to 138763 states and 428574 transitions. [2021-06-05 11:12:17,424 INFO L78 Accepts]: Start accepts. Automaton has 138763 states and 428574 transitions. Word has length 103 [2021-06-05 11:12:17,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:12:17,424 INFO L482 AbstractCegarLoop]: Abstraction has 138763 states and 428574 transitions. [2021-06-05 11:12:17,424 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:12:17,424 INFO L276 IsEmpty]: Start isEmpty. Operand 138763 states and 428574 transitions. [2021-06-05 11:12:17,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-06-05 11:12:17,524 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:12:17,524 INFO L521 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] [2021-06-05 11:12:17,524 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-06-05 11:12:17,524 INFO L430 AbstractCegarLoop]: === Iteration 39 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:12:17,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:12:17,525 INFO L82 PathProgramCache]: Analyzing trace with hash -96681395, now seen corresponding path program 33 times [2021-06-05 11:12:17,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:12:17,525 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280382346] [2021-06-05 11:12:17,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:12:17,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:12:18,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:12:18,168 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:12:18,168 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280382346] [2021-06-05 11:12:18,169 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280382346] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:12:18,169 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:12:18,169 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-06-05 11:12:18,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667727597] [2021-06-05 11:12:18,169 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-06-05 11:12:18,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:12:18,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-06-05 11:12:18,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=799, Unknown=0, NotChecked=0, Total=870 [2021-06-05 11:12:18,169 INFO L87 Difference]: Start difference. First operand 138763 states and 428574 transitions. Second operand has 30 states, 30 states have (on average 3.433333333333333) internal successors, (103), 30 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:12:19,347 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 62 [2021-06-05 11:12:20,314 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 66 [2021-06-05 11:12:20,558 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 70 [2021-06-05 11:12:20,753 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 70 [2021-06-05 11:12:20,938 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 72 [2021-06-05 11:12:21,104 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 74 [2021-06-05 11:12:21,313 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 74 [2021-06-05 11:12:21,496 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 78 [2021-06-05 11:12:21,719 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 78 [2021-06-05 11:12:21,922 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 81 [2021-06-05 11:12:22,157 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 82 [2021-06-05 11:12:22,422 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 79 [2021-06-05 11:12:22,597 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 73 [2021-06-05 11:12:22,842 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 85 [2021-06-05 11:12:23,044 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 83 [2021-06-05 11:12:23,264 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 77 [2021-06-05 11:12:23,477 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 87 [2021-06-05 11:12:23,668 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 85 [2021-06-05 11:12:23,860 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 78 [2021-06-05 11:12:24,112 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 90 [2021-06-05 11:12:24,396 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 82 [2021-06-05 11:12:24,603 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 82 [2021-06-05 11:12:24,888 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 89 [2021-06-05 11:12:25,135 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 87 [2021-06-05 11:12:25,356 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 93 [2021-06-05 11:12:25,642 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 97 [2021-06-05 11:12:25,938 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 100 [2021-06-05 11:12:26,212 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 92 [2021-06-05 11:12:26,594 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 97 [2021-06-05 11:12:28,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:12:28,139 INFO L93 Difference]: Finished difference Result 166033 states and 512633 transitions. [2021-06-05 11:12:28,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-06-05 11:12:28,140 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.433333333333333) internal successors, (103), 30 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-06-05 11:12:28,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:12:28,389 INFO L225 Difference]: With dead ends: 166033 [2021-06-05 11:12:28,389 INFO L226 Difference]: Without dead ends: 166033 [2021-06-05 11:12:28,389 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 679 ImplicationChecksByTransitivity, 6953.9ms TimeCoverageRelationStatistics Valid=1574, Invalid=3828, Unknown=0, NotChecked=0, Total=5402 [2021-06-05 11:12:29,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166033 states. [2021-06-05 11:12:30,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166033 to 138763. [2021-06-05 11:12:31,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138763 states, 138759 states have (on average 3.0886212786197653) internal successors, (428574), 138762 states have internal predecessors, (428574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:12:31,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138763 states to 138763 states and 428574 transitions. [2021-06-05 11:12:31,800 INFO L78 Accepts]: Start accepts. Automaton has 138763 states and 428574 transitions. Word has length 103 [2021-06-05 11:12:31,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:12:31,801 INFO L482 AbstractCegarLoop]: Abstraction has 138763 states and 428574 transitions. [2021-06-05 11:12:31,801 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 3.433333333333333) internal successors, (103), 30 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:12:31,801 INFO L276 IsEmpty]: Start isEmpty. Operand 138763 states and 428574 transitions. [2021-06-05 11:12:31,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-06-05 11:12:31,900 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:12:31,900 INFO L521 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] [2021-06-05 11:12:31,900 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-06-05 11:12:31,900 INFO L430 AbstractCegarLoop]: === Iteration 40 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:12:31,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:12:31,900 INFO L82 PathProgramCache]: Analyzing trace with hash -1795062817, now seen corresponding path program 34 times [2021-06-05 11:12:31,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:12:31,900 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491306702] [2021-06-05 11:12:31,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:12:31,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:12:32,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:12:32,602 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:12:32,602 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491306702] [2021-06-05 11:12:32,602 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491306702] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:12:32,602 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:12:32,602 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-05 11:12:32,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074725578] [2021-06-05 11:12:32,602 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-05 11:12:32,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:12:32,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-05 11:12:32,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=849, Unknown=0, NotChecked=0, Total=930 [2021-06-05 11:12:32,603 INFO L87 Difference]: Start difference. First operand 138763 states and 428574 transitions. Second operand has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:12:33,589 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 58 [2021-06-05 11:12:34,020 WARN L205 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 62 [2021-06-05 11:12:34,241 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 66 [2021-06-05 11:12:34,479 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 71 [2021-06-05 11:12:34,880 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 81 [2021-06-05 11:12:35,299 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 66 [2021-06-05 11:12:35,571 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 70 [2021-06-05 11:12:35,790 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 70 [2021-06-05 11:12:36,012 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 75 [2021-06-05 11:12:36,200 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 74 [2021-06-05 11:12:36,524 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 74 [2021-06-05 11:12:36,725 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 76 [2021-06-05 11:12:36,971 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 78 [2021-06-05 11:12:37,188 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 79 [2021-06-05 11:12:37,441 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 80 [2021-06-05 11:12:37,655 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 79 [2021-06-05 11:12:37,847 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 73 [2021-06-05 11:12:38,109 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 83 [2021-06-05 11:12:38,332 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 83 [2021-06-05 11:12:38,577 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 77 [2021-06-05 11:12:38,834 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 85 [2021-06-05 11:12:39,048 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 85 [2021-06-05 11:12:39,254 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 78 [2021-06-05 11:12:39,539 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 88 [2021-06-05 11:12:39,833 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 82 [2021-06-05 11:12:40,060 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 82 [2021-06-05 11:12:40,354 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 89 [2021-06-05 11:12:40,626 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 87 [2021-06-05 11:12:40,872 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 93 [2021-06-05 11:12:41,184 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 95 [2021-06-05 11:12:41,525 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 98 [2021-06-05 11:12:41,859 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 92 [2021-06-05 11:12:42,352 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 97 [2021-06-05 11:12:43,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:12:43,842 INFO L93 Difference]: Finished difference Result 177301 states and 547670 transitions. [2021-06-05 11:12:43,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-06-05 11:12:43,842 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-06-05 11:12:43,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:12:44,085 INFO L225 Difference]: With dead ends: 177301 [2021-06-05 11:12:44,085 INFO L226 Difference]: Without dead ends: 177301 [2021-06-05 11:12:44,086 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 782 ImplicationChecksByTransitivity, 8398.5ms TimeCoverageRelationStatistics Valid=1772, Invalid=4234, Unknown=0, NotChecked=0, Total=6006 [2021-06-05 11:12:45,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177301 states. [2021-06-05 11:12:46,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177301 to 132133. [2021-06-05 11:12:46,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132133 states, 132129 states have (on average 3.087989767575627) internal successors, (408013), 132132 states have internal predecessors, (408013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:12:47,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132133 states to 132133 states and 408013 transitions. [2021-06-05 11:12:47,054 INFO L78 Accepts]: Start accepts. Automaton has 132133 states and 408013 transitions. Word has length 103 [2021-06-05 11:12:47,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:12:47,054 INFO L482 AbstractCegarLoop]: Abstraction has 132133 states and 408013 transitions. [2021-06-05 11:12:47,055 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:12:47,055 INFO L276 IsEmpty]: Start isEmpty. Operand 132133 states and 408013 transitions. [2021-06-05 11:12:47,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-06-05 11:12:47,149 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:12:47,149 INFO L521 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] [2021-06-05 11:12:47,149 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-06-05 11:12:47,149 INFO L430 AbstractCegarLoop]: === Iteration 41 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:12:47,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:12:47,150 INFO L82 PathProgramCache]: Analyzing trace with hash -1074472369, now seen corresponding path program 35 times [2021-06-05 11:12:47,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:12:47,150 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377043090] [2021-06-05 11:12:47,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:12:47,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:12:47,926 WARN L205 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2021-06-05 11:12:48,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:12:48,056 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:12:48,056 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377043090] [2021-06-05 11:12:48,056 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377043090] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:12:48,056 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:12:48,056 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-06-05 11:12:48,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102102542] [2021-06-05 11:12:48,056 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-06-05 11:12:48,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:12:48,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-06-05 11:12:48,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=794, Unknown=0, NotChecked=0, Total=870 [2021-06-05 11:12:48,057 INFO L87 Difference]: Start difference. First operand 132133 states and 408013 transitions. Second operand has 30 states, 30 states have (on average 3.433333333333333) internal successors, (103), 30 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:12:50,026 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 68 [2021-06-05 11:12:50,167 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 65 [2021-06-05 11:12:50,338 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 62 [2021-06-05 11:12:50,811 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 69 [2021-06-05 11:12:51,002 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-06-05 11:12:51,206 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 71 [2021-06-05 11:12:52,060 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 77 [2021-06-05 11:12:52,512 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 84 [2021-06-05 11:12:53,553 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 74 [2021-06-05 11:12:53,692 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 73 [2021-06-05 11:12:54,091 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 77 [2021-06-05 11:12:54,246 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 75 [2021-06-05 11:12:54,405 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 74 [2021-06-05 11:12:54,652 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 73 [2021-06-05 11:12:54,813 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 70 [2021-06-05 11:12:54,987 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 79 [2021-06-05 11:12:55,168 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 78 [2021-06-05 11:12:55,642 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 82 [2021-06-05 11:12:55,806 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 73 [2021-06-05 11:12:56,215 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 74 [2021-06-05 11:12:56,405 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 77 [2021-06-05 11:12:56,570 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 74 [2021-06-05 11:12:56,860 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 78 [2021-06-05 11:12:57,043 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 75 [2021-06-05 11:12:57,219 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 78 [2021-06-05 11:12:57,535 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 81 [2021-06-05 11:12:57,721 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 76 [2021-06-05 11:12:57,915 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 78 [2021-06-05 11:12:58,106 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 82 [2021-06-05 11:12:58,481 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 83 [2021-06-05 11:12:58,686 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 79 [2021-06-05 11:12:58,896 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 80 [2021-06-05 11:12:59,177 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 86 [2021-06-05 11:12:59,393 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 82 [2021-06-05 11:12:59,629 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 83 [2021-06-05 11:13:00,009 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 81 [2021-06-05 11:13:00,242 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 84 [2021-06-05 11:13:00,454 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 83 [2021-06-05 11:13:00,654 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 78 [2021-06-05 11:13:01,003 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 87 [2021-06-05 11:13:01,227 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 87 [2021-06-05 11:13:01,508 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 86 [2021-06-05 11:13:01,732 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 81 [2021-06-05 11:13:01,975 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 89 [2021-06-05 11:13:02,178 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 89 [2021-06-05 11:13:02,397 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 83 [2021-06-05 11:13:02,548 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 62 [2021-06-05 11:13:02,874 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 92 [2021-06-05 11:13:03,228 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 86 [2021-06-05 11:13:03,493 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 86 [2021-06-05 11:13:03,819 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 93 [2021-06-05 11:13:04,156 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 91 [2021-06-05 11:13:04,404 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 97 [2021-06-05 11:13:04,780 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 99 [2021-06-05 11:13:05,179 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 102 [2021-06-05 11:13:05,602 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 96 [2021-06-05 11:13:06,148 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 101 [2021-06-05 11:13:08,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:13:08,073 INFO L93 Difference]: Finished difference Result 211427 states and 653087 transitions. [2021-06-05 11:13:08,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2021-06-05 11:13:08,073 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.433333333333333) internal successors, (103), 30 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-06-05 11:13:08,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:13:08,629 INFO L225 Difference]: With dead ends: 211427 [2021-06-05 11:13:08,629 INFO L226 Difference]: Without dead ends: 211427 [2021-06-05 11:13:08,630 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3394 ImplicationChecksByTransitivity, 15721.6ms TimeCoverageRelationStatistics Valid=4994, Invalid=13096, Unknown=0, NotChecked=0, Total=18090 [2021-06-05 11:13:09,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211427 states. [2021-06-05 11:13:11,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211427 to 132073. [2021-06-05 11:13:11,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132073 states, 132069 states have (on average 3.088014598429609) internal successors, (407831), 132072 states have internal predecessors, (407831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:13:11,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132073 states to 132073 states and 407831 transitions. [2021-06-05 11:13:11,858 INFO L78 Accepts]: Start accepts. Automaton has 132073 states and 407831 transitions. Word has length 103 [2021-06-05 11:13:11,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:13:11,858 INFO L482 AbstractCegarLoop]: Abstraction has 132073 states and 407831 transitions. [2021-06-05 11:13:11,858 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 3.433333333333333) internal successors, (103), 30 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:13:11,858 INFO L276 IsEmpty]: Start isEmpty. Operand 132073 states and 407831 transitions. [2021-06-05 11:13:11,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-06-05 11:13:11,968 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:13:11,968 INFO L521 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] [2021-06-05 11:13:11,968 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-06-05 11:13:11,968 INFO L430 AbstractCegarLoop]: === Iteration 42 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:13:11,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:13:11,970 INFO L82 PathProgramCache]: Analyzing trace with hash 466780323, now seen corresponding path program 36 times [2021-06-05 11:13:11,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:13:11,970 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353234602] [2021-06-05 11:13:11,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:13:12,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:13:12,696 WARN L205 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 16 [2021-06-05 11:13:13,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:13:13,112 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:13:13,112 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353234602] [2021-06-05 11:13:13,112 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353234602] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:13:13,112 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:13:13,112 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-06-05 11:13:13,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231520081] [2021-06-05 11:13:13,113 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-06-05 11:13:13,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:13:13,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-06-05 11:13:13,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=788, Unknown=0, NotChecked=0, Total=870 [2021-06-05 11:13:13,113 INFO L87 Difference]: Start difference. First operand 132073 states and 407831 transitions. Second operand has 30 states, 30 states have (on average 3.433333333333333) internal successors, (103), 30 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:13:15,188 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 65 [2021-06-05 11:13:15,639 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 72 [2021-06-05 11:13:15,930 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 67 [2021-06-05 11:13:16,119 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 74 [2021-06-05 11:13:16,696 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 72 [2021-06-05 11:13:17,089 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 79 [2021-06-05 11:13:17,522 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 86 [2021-06-05 11:13:18,533 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 74 [2021-06-05 11:13:18,671 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 71 [2021-06-05 11:13:19,069 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 77 [2021-06-05 11:13:19,223 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 73 [2021-06-05 11:13:19,379 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 72 [2021-06-05 11:13:19,634 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 73 [2021-06-05 11:13:19,806 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 79 [2021-06-05 11:13:19,982 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 76 [2021-06-05 11:13:20,441 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 82 [2021-06-05 11:13:20,600 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 71 [2021-06-05 11:13:20,994 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 77 [2021-06-05 11:13:21,183 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 77 [2021-06-05 11:13:21,340 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 72 [2021-06-05 11:13:21,632 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 78 [2021-06-05 11:13:21,807 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 76 [2021-06-05 11:13:22,116 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 79 [2021-06-05 11:13:22,301 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 81 [2021-06-05 11:13:22,490 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 82 [2021-06-05 11:13:22,840 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 82 [2021-06-05 11:13:23,043 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 83 [2021-06-05 11:13:23,326 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 85 [2021-06-05 11:13:23,550 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 86 [2021-06-05 11:13:23,938 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 87 [2021-06-05 11:13:24,141 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 84 [2021-06-05 11:13:24,335 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 81 [2021-06-05 11:13:24,640 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 90 [2021-06-05 11:13:24,857 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 87 [2021-06-05 11:13:25,019 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 61 [2021-06-05 11:13:25,268 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 85 [2021-06-05 11:13:25,502 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 92 [2021-06-05 11:13:25,701 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 91 [2021-06-05 11:13:25,930 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 86 [2021-06-05 11:13:26,383 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 95 [2021-06-05 11:13:26,571 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 63 [2021-06-05 11:13:26,840 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 89 [2021-06-05 11:13:27,068 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 89 [2021-06-05 11:13:27,254 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 66 [2021-06-05 11:13:27,519 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 96 [2021-06-05 11:13:27,831 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 94 [2021-06-05 11:13:28,067 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 99 [2021-06-05 11:13:28,303 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 68 [2021-06-05 11:13:28,586 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 101 [2021-06-05 11:13:28,959 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 104 [2021-06-05 11:13:29,175 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 75 [2021-06-05 11:13:29,465 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 98 [2021-06-05 11:13:29,947 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 103 [2021-06-05 11:13:30,209 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 80 [2021-06-05 11:13:32,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:13:32,022 INFO L93 Difference]: Finished difference Result 184277 states and 568152 transitions. [2021-06-05 11:13:32,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2021-06-05 11:13:32,022 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.433333333333333) internal successors, (103), 30 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-06-05 11:13:32,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:13:32,278 INFO L225 Difference]: With dead ends: 184277 [2021-06-05 11:13:32,278 INFO L226 Difference]: Without dead ends: 184277 [2021-06-05 11:13:32,279 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3638 ImplicationChecksByTransitivity, 14815.9ms TimeCoverageRelationStatistics Valid=4807, Invalid=13283, Unknown=0, NotChecked=0, Total=18090 [2021-06-05 11:13:33,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184277 states. [2021-06-05 11:13:35,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184277 to 139209. [2021-06-05 11:13:35,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139209 states, 139205 states have (on average 3.089501095506627) internal successors, (430074), 139208 states have internal predecessors, (430074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:13:35,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139209 states to 139209 states and 430074 transitions. [2021-06-05 11:13:35,449 INFO L78 Accepts]: Start accepts. Automaton has 139209 states and 430074 transitions. Word has length 103 [2021-06-05 11:13:35,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:13:35,449 INFO L482 AbstractCegarLoop]: Abstraction has 139209 states and 430074 transitions. [2021-06-05 11:13:35,449 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 3.433333333333333) internal successors, (103), 30 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:13:35,449 INFO L276 IsEmpty]: Start isEmpty. Operand 139209 states and 430074 transitions. [2021-06-05 11:13:35,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-06-05 11:13:35,554 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:13:35,554 INFO L521 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] [2021-06-05 11:13:35,554 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-06-05 11:13:35,554 INFO L430 AbstractCegarLoop]: === Iteration 43 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:13:35,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:13:35,555 INFO L82 PathProgramCache]: Analyzing trace with hash 171903739, now seen corresponding path program 37 times [2021-06-05 11:13:35,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:13:35,555 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793261809] [2021-06-05 11:13:35,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:13:35,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:13:36,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:13:36,608 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:13:36,608 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793261809] [2021-06-05 11:13:36,608 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793261809] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:13:36,608 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:13:36,608 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-05 11:13:36,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325046337] [2021-06-05 11:13:36,608 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-05 11:13:36,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:13:36,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-05 11:13:36,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=854, Unknown=0, NotChecked=0, Total=930 [2021-06-05 11:13:36,609 INFO L87 Difference]: Start difference. First operand 139209 states and 430074 transitions. Second operand has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:13:37,761 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 62 [2021-06-05 11:13:38,397 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 66 [2021-06-05 11:13:38,909 WARN L205 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 70 [2021-06-05 11:13:39,100 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 75 [2021-06-05 11:13:39,292 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 77 [2021-06-05 11:13:39,495 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 79 [2021-06-05 11:13:39,682 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 80 [2021-06-05 11:13:39,897 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 81 [2021-06-05 11:13:40,074 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 73 [2021-06-05 11:13:40,303 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 84 [2021-06-05 11:13:40,495 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 83 [2021-06-05 11:13:40,720 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 85 [2021-06-05 11:13:40,913 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 78 [2021-06-05 11:13:41,157 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 88 [2021-06-05 11:13:41,501 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 87 [2021-06-05 11:13:41,740 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 89 [2021-06-05 11:13:42,083 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 92 [2021-06-05 11:13:44,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:13:44,241 INFO L93 Difference]: Finished difference Result 235479 states and 728101 transitions. [2021-06-05 11:13:44,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-05 11:13:44,242 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-06-05 11:13:44,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:13:44,599 INFO L225 Difference]: With dead ends: 235479 [2021-06-05 11:13:44,599 INFO L226 Difference]: Without dead ends: 235479 [2021-06-05 11:13:44,599 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 679 ImplicationChecksByTransitivity, 5714.6ms TimeCoverageRelationStatistics Valid=1236, Invalid=3734, Unknown=0, NotChecked=0, Total=4970 [2021-06-05 11:13:45,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235479 states. [2021-06-05 11:13:47,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235479 to 151299. [2021-06-05 11:13:48,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151299 states, 151295 states have (on average 3.09349945470769) internal successors, (468031), 151298 states have internal predecessors, (468031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:13:48,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151299 states to 151299 states and 468031 transitions. [2021-06-05 11:13:48,413 INFO L78 Accepts]: Start accepts. Automaton has 151299 states and 468031 transitions. Word has length 103 [2021-06-05 11:13:48,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:13:48,413 INFO L482 AbstractCegarLoop]: Abstraction has 151299 states and 468031 transitions. [2021-06-05 11:13:48,414 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:13:48,414 INFO L276 IsEmpty]: Start isEmpty. Operand 151299 states and 468031 transitions. [2021-06-05 11:13:48,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-06-05 11:13:48,540 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:13:48,540 INFO L521 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] [2021-06-05 11:13:48,540 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-06-05 11:13:48,540 INFO L430 AbstractCegarLoop]: === Iteration 44 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:13:48,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:13:48,540 INFO L82 PathProgramCache]: Analyzing trace with hash 2053726369, now seen corresponding path program 38 times [2021-06-05 11:13:48,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:13:48,540 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614738642] [2021-06-05 11:13:48,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:13:48,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:13:49,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:13:49,118 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:13:49,118 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614738642] [2021-06-05 11:13:49,118 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614738642] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:13:49,118 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:13:49,118 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-05 11:13:49,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368177806] [2021-06-05 11:13:49,118 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-05 11:13:49,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:13:49,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-05 11:13:49,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=857, Unknown=0, NotChecked=0, Total=930 [2021-06-05 11:13:49,119 INFO L87 Difference]: Start difference. First operand 151299 states and 468031 transitions. Second operand has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:13:50,764 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2021-06-05 11:13:51,524 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 71 [2021-06-05 11:13:51,836 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 75 [2021-06-05 11:13:52,226 WARN L205 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 75 [2021-06-05 11:13:52,433 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 74 [2021-06-05 11:13:52,619 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 77 [2021-06-05 11:13:52,843 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 79 [2021-06-05 11:13:53,046 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 80 [2021-06-05 11:13:53,281 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 81 [2021-06-05 11:13:53,480 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 79 [2021-06-05 11:13:53,664 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 73 [2021-06-05 11:13:53,919 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 84 [2021-06-05 11:13:54,127 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 83 [2021-06-05 11:13:54,357 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 77 [2021-06-05 11:13:54,604 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 85 [2021-06-05 11:13:54,821 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 78 [2021-06-05 11:13:55,081 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 88 [2021-06-05 11:13:55,357 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 82 [2021-06-05 11:13:55,574 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 82 [2021-06-05 11:13:55,880 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 87 [2021-06-05 11:13:56,104 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 87 [2021-06-05 11:13:56,379 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 89 [2021-06-05 11:13:56,742 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 92 [2021-06-05 11:13:59,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:13:59,044 INFO L93 Difference]: Finished difference Result 241839 states and 747993 transitions. [2021-06-05 11:13:59,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-06-05 11:13:59,044 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-06-05 11:13:59,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:13:59,685 INFO L225 Difference]: With dead ends: 241839 [2021-06-05 11:13:59,685 INFO L226 Difference]: Without dead ends: 241839 [2021-06-05 11:13:59,685 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 837 ImplicationChecksByTransitivity, 6684.0ms TimeCoverageRelationStatistics Valid=1489, Invalid=4363, Unknown=0, NotChecked=0, Total=5852 [2021-06-05 11:14:01,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241839 states. [2021-06-05 11:14:02,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241839 to 151839. [2021-06-05 11:14:02,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151839 states, 151835 states have (on average 3.093680640168604) internal successors, (469729), 151838 states have internal predecessors, (469729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:14:03,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151839 states to 151839 states and 469729 transitions. [2021-06-05 11:14:03,650 INFO L78 Accepts]: Start accepts. Automaton has 151839 states and 469729 transitions. Word has length 103 [2021-06-05 11:14:03,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:14:03,650 INFO L482 AbstractCegarLoop]: Abstraction has 151839 states and 469729 transitions. [2021-06-05 11:14:03,650 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:14:03,650 INFO L276 IsEmpty]: Start isEmpty. Operand 151839 states and 469729 transitions. [2021-06-05 11:14:03,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-06-05 11:14:03,768 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:14:03,769 INFO L521 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] [2021-06-05 11:14:03,769 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-06-05 11:14:03,769 INFO L430 AbstractCegarLoop]: === Iteration 45 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:14:03,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:14:03,769 INFO L82 PathProgramCache]: Analyzing trace with hash -17913259, now seen corresponding path program 39 times [2021-06-05 11:14:03,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:14:03,769 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348734906] [2021-06-05 11:14:03,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:14:03,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:14:04,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:14:04,339 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:14:04,339 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348734906] [2021-06-05 11:14:04,339 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348734906] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:14:04,340 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:14:04,340 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-05 11:14:04,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514769632] [2021-06-05 11:14:04,340 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-05 11:14:04,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:14:04,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-05 11:14:04,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=857, Unknown=0, NotChecked=0, Total=930 [2021-06-05 11:14:04,340 INFO L87 Difference]: Start difference. First operand 151839 states and 469729 transitions. Second operand has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:14:05,625 WARN L205 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 63 [2021-06-05 11:14:05,874 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2021-06-05 11:14:06,558 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 71 [2021-06-05 11:14:06,854 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 75 [2021-06-05 11:14:07,059 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 80 [2021-06-05 11:14:07,268 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 74 [2021-06-05 11:14:07,452 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 77 [2021-06-05 11:14:07,674 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 79 [2021-06-05 11:14:08,006 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 80 [2021-06-05 11:14:08,235 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 81 [2021-06-05 11:14:08,433 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 79 [2021-06-05 11:14:08,612 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 73 [2021-06-05 11:14:08,864 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 84 [2021-06-05 11:14:09,073 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 84 [2021-06-05 11:14:09,301 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 77 [2021-06-05 11:14:09,519 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 86 [2021-06-05 11:14:09,730 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 78 [2021-06-05 11:14:09,996 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 89 [2021-06-05 11:14:10,269 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 82 [2021-06-05 11:14:10,519 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 82 [2021-06-05 11:14:10,757 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 80 [2021-06-05 11:14:11,005 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 87 [2021-06-05 11:14:11,216 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 85 [2021-06-05 11:14:11,477 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 87 [2021-06-05 11:14:11,818 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 90 [2021-06-05 11:14:12,236 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 83 [2021-06-05 11:14:12,974 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 88 [2021-06-05 11:14:14,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:14:14,410 INFO L93 Difference]: Finished difference Result 241119 states and 745749 transitions. [2021-06-05 11:14:14,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-06-05 11:14:14,410 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-06-05 11:14:14,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:14:14,802 INFO L225 Difference]: With dead ends: 241119 [2021-06-05 11:14:14,802 INFO L226 Difference]: Without dead ends: 241119 [2021-06-05 11:14:14,803 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 937 ImplicationChecksByTransitivity, 7479.3ms TimeCoverageRelationStatistics Valid=1637, Invalid=4683, Unknown=0, NotChecked=0, Total=6320 [2021-06-05 11:14:16,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241119 states. [2021-06-05 11:14:18,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241119 to 151899. [2021-06-05 11:14:18,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151899 states, 151895 states have (on average 3.093656802396392) internal successors, (469911), 151898 states have internal predecessors, (469911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:14:19,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151899 states to 151899 states and 469911 transitions. [2021-06-05 11:14:19,051 INFO L78 Accepts]: Start accepts. Automaton has 151899 states and 469911 transitions. Word has length 103 [2021-06-05 11:14:19,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:14:19,051 INFO L482 AbstractCegarLoop]: Abstraction has 151899 states and 469911 transitions. [2021-06-05 11:14:19,051 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:14:19,051 INFO L276 IsEmpty]: Start isEmpty. Operand 151899 states and 469911 transitions. [2021-06-05 11:14:19,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-06-05 11:14:19,201 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:14:19,202 INFO L521 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] [2021-06-05 11:14:19,202 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-06-05 11:14:19,202 INFO L430 AbstractCegarLoop]: === Iteration 46 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:14:19,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:14:19,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1458289589, now seen corresponding path program 40 times [2021-06-05 11:14:19,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:14:19,202 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146577412] [2021-06-05 11:14:19,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:14:19,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:14:19,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:14:19,802 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:14:19,802 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146577412] [2021-06-05 11:14:19,802 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146577412] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:14:19,802 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:14:19,802 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-06-05 11:14:19,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319225263] [2021-06-05 11:14:19,802 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-06-05 11:14:19,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:14:19,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-06-05 11:14:19,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2021-06-05 11:14:19,803 INFO L87 Difference]: Start difference. First operand 151899 states and 469911 transitions. Second operand has 30 states, 30 states have (on average 3.433333333333333) internal successors, (103), 30 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:14:21,024 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2021-06-05 11:14:22,091 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 71 [2021-06-05 11:14:22,406 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 75 [2021-06-05 11:14:22,613 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 74 [2021-06-05 11:14:22,818 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 74 [2021-06-05 11:14:23,002 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 76 [2021-06-05 11:14:23,223 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 78 [2021-06-05 11:14:23,439 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 79 [2021-06-05 11:14:23,673 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 80 [2021-06-05 11:14:23,954 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 79 [2021-06-05 11:14:24,132 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 73 [2021-06-05 11:14:24,385 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 83 [2021-06-05 11:14:24,597 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 83 [2021-06-05 11:14:24,825 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 77 [2021-06-05 11:14:25,043 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 85 [2021-06-05 11:14:25,254 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 78 [2021-06-05 11:14:25,520 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 88 [2021-06-05 11:14:25,801 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 82 [2021-06-05 11:14:26,017 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 82 [2021-06-05 11:14:26,367 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 89 [2021-06-05 11:14:26,617 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 87 [2021-06-05 11:14:26,850 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 93 [2021-06-05 11:14:27,145 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 95 [2021-06-05 11:14:27,455 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 98 [2021-06-05 11:14:27,776 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 92 [2021-06-05 11:14:28,242 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 97 [2021-06-05 11:14:29,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:14:29,772 INFO L93 Difference]: Finished difference Result 240339 states and 743293 transitions. [2021-06-05 11:14:29,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-06-05 11:14:29,773 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.433333333333333) internal successors, (103), 30 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-06-05 11:14:29,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:14:30,165 INFO L225 Difference]: With dead ends: 240339 [2021-06-05 11:14:30,166 INFO L226 Difference]: Without dead ends: 240339 [2021-06-05 11:14:30,166 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 633 ImplicationChecksByTransitivity, 6745.4ms TimeCoverageRelationStatistics Valid=1455, Invalid=3515, Unknown=0, NotChecked=0, Total=4970 [2021-06-05 11:14:31,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240339 states. [2021-06-05 11:14:33,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240339 to 158919. [2021-06-05 11:14:33,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158919 states, 158915 states have (on average 3.0947676430796336) internal successors, (491805), 158918 states have internal predecessors, (491805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:14:34,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158919 states to 158919 states and 491805 transitions. [2021-06-05 11:14:34,024 INFO L78 Accepts]: Start accepts. Automaton has 158919 states and 491805 transitions. Word has length 103 [2021-06-05 11:14:34,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:14:34,024 INFO L482 AbstractCegarLoop]: Abstraction has 158919 states and 491805 transitions. [2021-06-05 11:14:34,024 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 3.433333333333333) internal successors, (103), 30 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:14:34,024 INFO L276 IsEmpty]: Start isEmpty. Operand 158919 states and 491805 transitions. [2021-06-05 11:14:34,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-06-05 11:14:34,621 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:14:34,621 INFO L521 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] [2021-06-05 11:14:34,621 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-06-05 11:14:34,621 INFO L430 AbstractCegarLoop]: === Iteration 47 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:14:34,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:14:34,621 INFO L82 PathProgramCache]: Analyzing trace with hash -1520838853, now seen corresponding path program 41 times [2021-06-05 11:14:34,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:14:34,621 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879630190] [2021-06-05 11:14:34,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:14:34,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:14:35,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:14:35,369 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:14:35,369 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879630190] [2021-06-05 11:14:35,369 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879630190] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:14:35,369 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:14:35,369 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-05 11:14:35,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301861922] [2021-06-05 11:14:35,369 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-05 11:14:35,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:14:35,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-05 11:14:35,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=857, Unknown=0, NotChecked=0, Total=930 [2021-06-05 11:14:35,370 INFO L87 Difference]: Start difference. First operand 158919 states and 491805 transitions. Second operand has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:14:36,609 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2021-06-05 11:14:37,665 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 71 [2021-06-05 11:14:37,921 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 75 [2021-06-05 11:14:38,172 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 75 [2021-06-05 11:14:38,456 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 79 [2021-06-05 11:14:38,689 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 83 [2021-06-05 11:14:38,916 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 85 [2021-06-05 11:14:39,181 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 88 [2021-06-05 11:14:39,409 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 79 [2021-06-05 11:14:39,618 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 82 [2021-06-05 11:14:39,892 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 81 [2021-06-05 11:14:40,131 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 84 [2021-06-05 11:14:40,346 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 87 [2021-06-05 11:14:40,568 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 87 [2021-06-05 11:14:40,778 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 73 [2021-06-05 11:14:40,993 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 89 [2021-06-05 11:14:41,342 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 92 [2021-06-05 11:14:41,729 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 78 [2021-06-05 11:14:42,091 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 78 [2021-06-05 11:14:42,695 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 83 [2021-06-05 11:14:44,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:14:44,165 INFO L93 Difference]: Finished difference Result 254859 states and 789227 transitions. [2021-06-05 11:14:44,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:14:44,165 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-06-05 11:14:44,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:14:44,818 INFO L225 Difference]: With dead ends: 254859 [2021-06-05 11:14:44,819 INFO L226 Difference]: Without dead ends: 254859 [2021-06-05 11:14:44,819 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 771 ImplicationChecksByTransitivity, 6280.4ms TimeCoverageRelationStatistics Valid=1334, Invalid=4068, Unknown=0, NotChecked=0, Total=5402 [2021-06-05 11:14:45,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254859 states. [2021-06-05 11:14:48,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254859 to 165339. [2021-06-05 11:14:48,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165339 states, 165335 states have (on average 3.097825626757795) internal successors, (512179), 165338 states have internal predecessors, (512179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:14:48,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165339 states to 165339 states and 512179 transitions. [2021-06-05 11:14:48,892 INFO L78 Accepts]: Start accepts. Automaton has 165339 states and 512179 transitions. Word has length 103 [2021-06-05 11:14:48,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:14:48,892 INFO L482 AbstractCegarLoop]: Abstraction has 165339 states and 512179 transitions. [2021-06-05 11:14:48,892 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:14:48,892 INFO L276 IsEmpty]: Start isEmpty. Operand 165339 states and 512179 transitions. [2021-06-05 11:14:49,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-06-05 11:14:49,048 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:14:49,048 INFO L521 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] [2021-06-05 11:14:49,048 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-06-05 11:14:49,048 INFO L430 AbstractCegarLoop]: === Iteration 48 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:14:49,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:14:49,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1028647583, now seen corresponding path program 42 times [2021-06-05 11:14:49,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:14:49,049 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537061588] [2021-06-05 11:14:49,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:14:49,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:14:49,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:14:49,626 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:14:49,626 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537061588] [2021-06-05 11:14:49,626 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537061588] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:14:49,626 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:14:49,626 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-05 11:14:49,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54421907] [2021-06-05 11:14:49,626 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-05 11:14:49,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:14:49,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-05 11:14:49,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=857, Unknown=0, NotChecked=0, Total=930 [2021-06-05 11:14:49,627 INFO L87 Difference]: Start difference. First operand 165339 states and 512179 transitions. Second operand has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:14:50,516 WARN L205 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 47 [2021-06-05 11:14:51,281 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2021-06-05 11:14:52,023 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 71 [2021-06-05 11:14:52,280 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 75 [2021-06-05 11:14:52,536 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 75 [2021-06-05 11:14:52,752 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 74 [2021-06-05 11:14:53,129 WARN L205 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 79 [2021-06-05 11:14:53,359 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 79 [2021-06-05 11:14:53,563 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 81 [2021-06-05 11:14:53,803 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 81 [2021-06-05 11:14:54,020 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 84 [2021-06-05 11:14:54,258 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 83 [2021-06-05 11:14:54,462 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 77 [2021-06-05 11:14:54,734 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 86 [2021-06-05 11:14:54,991 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 82 [2021-06-05 11:14:55,210 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 82 [2021-06-05 11:14:55,525 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 85 [2021-06-05 11:14:55,757 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 87 [2021-06-05 11:14:55,998 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 87 [2021-06-05 11:14:56,330 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 90 [2021-06-05 11:14:58,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:14:58,606 INFO L93 Difference]: Finished difference Result 249819 states and 773039 transitions. [2021-06-05 11:14:58,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-06-05 11:14:58,606 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-06-05 11:14:58,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:14:59,024 INFO L225 Difference]: With dead ends: 249819 [2021-06-05 11:14:59,025 INFO L226 Difference]: Without dead ends: 249819 [2021-06-05 11:14:59,025 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 727 ImplicationChecksByTransitivity, 6215.9ms TimeCoverageRelationStatistics Valid=1303, Invalid=3953, Unknown=0, NotChecked=0, Total=5256 [2021-06-05 11:15:00,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249819 states. [2021-06-05 11:15:02,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249819 to 166179. [2021-06-05 11:15:02,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166179 states, 166175 states have (on average 3.096777493606138) internal successors, (514607), 166178 states have internal predecessors, (514607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:15:03,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166179 states to 166179 states and 514607 transitions. [2021-06-05 11:15:03,105 INFO L78 Accepts]: Start accepts. Automaton has 166179 states and 514607 transitions. Word has length 103 [2021-06-05 11:15:03,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:15:03,106 INFO L482 AbstractCegarLoop]: Abstraction has 166179 states and 514607 transitions. [2021-06-05 11:15:03,106 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:15:03,106 INFO L276 IsEmpty]: Start isEmpty. Operand 166179 states and 514607 transitions. [2021-06-05 11:15:04,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-06-05 11:15:04,056 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:15:04,056 INFO L521 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] [2021-06-05 11:15:04,056 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-06-05 11:15:04,056 INFO L430 AbstractCegarLoop]: === Iteration 49 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:15:04,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:15:04,056 INFO L82 PathProgramCache]: Analyzing trace with hash 702488815, now seen corresponding path program 43 times [2021-06-05 11:15:04,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:15:04,057 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789543679] [2021-06-05 11:15:04,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:15:04,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:15:04,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:15:04,738 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:15:04,738 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789543679] [2021-06-05 11:15:04,738 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789543679] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:15:04,738 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:15:04,738 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-05 11:15:04,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301903961] [2021-06-05 11:15:04,738 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-05 11:15:04,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:15:04,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-05 11:15:04,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=858, Unknown=0, NotChecked=0, Total=930 [2021-06-05 11:15:04,739 INFO L87 Difference]: Start difference. First operand 166179 states and 514607 transitions. Second operand has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:15:05,811 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 63 [2021-06-05 11:15:06,108 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2021-06-05 11:15:06,925 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 71 [2021-06-05 11:15:07,262 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 75 [2021-06-05 11:15:07,516 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 75 [2021-06-05 11:15:07,735 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 74 [2021-06-05 11:15:07,965 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 79 [2021-06-05 11:15:08,196 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 79 [2021-06-05 11:15:08,407 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 81 [2021-06-05 11:15:08,651 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 84 [2021-06-05 11:15:08,876 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 84 [2021-06-05 11:15:09,116 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 86 [2021-06-05 11:15:09,384 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 77 [2021-06-05 11:15:09,661 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 89 [2021-06-05 11:15:09,920 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 82 [2021-06-05 11:15:10,137 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 82 [2021-06-05 11:15:10,364 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 80 [2021-06-05 11:15:10,598 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 85 [2021-06-05 11:15:10,834 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 87 [2021-06-05 11:15:11,077 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 87 [2021-06-05 11:15:11,416 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 90 [2021-06-05 11:15:11,910 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 83 [2021-06-05 11:15:12,604 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 88 [2021-06-05 11:15:14,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:15:14,286 INFO L93 Difference]: Finished difference Result 249639 states and 772373 transitions. [2021-06-05 11:15:14,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-06-05 11:15:14,287 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-06-05 11:15:14,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:15:14,733 INFO L225 Difference]: With dead ends: 249639 [2021-06-05 11:15:14,733 INFO L226 Difference]: Without dead ends: 249639 [2021-06-05 11:15:14,734 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 809 ImplicationChecksByTransitivity, 6459.9ms TimeCoverageRelationStatistics Valid=1426, Invalid=4274, Unknown=0, NotChecked=0, Total=5700 [2021-06-05 11:15:16,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249639 states. [2021-06-05 11:15:18,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249639 to 166239. [2021-06-05 11:15:18,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166239 states, 166235 states have (on average 3.0967545943994947) internal successors, (514789), 166238 states have internal predecessors, (514789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:15:18,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166239 states to 166239 states and 514789 transitions. [2021-06-05 11:15:18,919 INFO L78 Accepts]: Start accepts. Automaton has 166239 states and 514789 transitions. Word has length 103 [2021-06-05 11:15:18,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:15:18,919 INFO L482 AbstractCegarLoop]: Abstraction has 166239 states and 514789 transitions. [2021-06-05 11:15:18,919 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:15:18,919 INFO L276 IsEmpty]: Start isEmpty. Operand 166239 states and 514789 transitions. [2021-06-05 11:15:19,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-06-05 11:15:19,079 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:15:19,080 INFO L521 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] [2021-06-05 11:15:19,080 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-06-05 11:15:19,080 INFO L430 AbstractCegarLoop]: === Iteration 50 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:15:19,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:15:19,080 INFO L82 PathProgramCache]: Analyzing trace with hash -2116275633, now seen corresponding path program 44 times [2021-06-05 11:15:19,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:15:19,080 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931090073] [2021-06-05 11:15:19,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:15:19,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:15:19,953 WARN L205 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 26 [2021-06-05 11:15:20,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:15:20,204 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:15:20,204 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931090073] [2021-06-05 11:15:20,204 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931090073] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:15:20,205 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:15:20,205 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-05 11:15:20,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395361276] [2021-06-05 11:15:20,205 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-05 11:15:20,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:15:20,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-05 11:15:20,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=855, Unknown=0, NotChecked=0, Total=930 [2021-06-05 11:15:20,205 INFO L87 Difference]: Start difference. First operand 166239 states and 514789 transitions. Second operand has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:15:21,359 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2021-06-05 11:15:22,065 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 71 [2021-06-05 11:15:22,314 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 70 [2021-06-05 11:15:22,735 WARN L205 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 75 [2021-06-05 11:15:22,936 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 75 [2021-06-05 11:15:23,112 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 74 [2021-06-05 11:15:23,332 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 74 [2021-06-05 11:15:23,519 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 76 [2021-06-05 11:15:23,748 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 78 [2021-06-05 11:15:23,954 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 79 [2021-06-05 11:15:24,216 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 80 [2021-06-05 11:15:24,418 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 79 [2021-06-05 11:15:24,607 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 73 [2021-06-05 11:15:24,878 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 83 [2021-06-05 11:15:25,127 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 83 [2021-06-05 11:15:25,367 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 77 [2021-06-05 11:15:25,591 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 85 [2021-06-05 11:15:25,812 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 78 [2021-06-05 11:15:26,084 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 88 [2021-06-05 11:15:26,365 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 82 [2021-06-05 11:15:26,578 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 82 [2021-06-05 11:15:26,851 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 89 [2021-06-05 11:15:27,101 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 87 [2021-06-05 11:15:27,349 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 93 [2021-06-05 11:15:27,696 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 95 [2021-06-05 11:15:28,015 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 98 [2021-06-05 11:15:28,348 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 92 [2021-06-05 11:15:28,830 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 97 [2021-06-05 11:15:30,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:15:30,355 INFO L93 Difference]: Finished difference Result 250149 states and 773950 transitions. [2021-06-05 11:15:30,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:15:30,356 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-06-05 11:15:30,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:15:30,749 INFO L225 Difference]: With dead ends: 250149 [2021-06-05 11:15:30,749 INFO L226 Difference]: Without dead ends: 250149 [2021-06-05 11:15:30,749 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 649 ImplicationChecksByTransitivity, 7369.2ms TimeCoverageRelationStatistics Valid=1552, Invalid=3850, Unknown=0, NotChecked=0, Total=5402 [2021-06-05 11:15:32,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250149 states. [2021-06-05 11:15:34,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250149 to 160539. [2021-06-05 11:15:34,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160539 states, 160535 states have (on average 3.095268944466939) internal successors, (496899), 160538 states have internal predecessors, (496899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:15:34,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160539 states to 160539 states and 496899 transitions. [2021-06-05 11:15:34,772 INFO L78 Accepts]: Start accepts. Automaton has 160539 states and 496899 transitions. Word has length 103 [2021-06-05 11:15:34,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:15:34,773 INFO L482 AbstractCegarLoop]: Abstraction has 160539 states and 496899 transitions. [2021-06-05 11:15:34,773 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:15:34,773 INFO L276 IsEmpty]: Start isEmpty. Operand 160539 states and 496899 transitions. [2021-06-05 11:15:34,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-06-05 11:15:34,927 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:15:34,927 INFO L521 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] [2021-06-05 11:15:34,927 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-06-05 11:15:34,927 INFO L430 AbstractCegarLoop]: === Iteration 51 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:15:34,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:15:34,927 INFO L82 PathProgramCache]: Analyzing trace with hash -1970608837, now seen corresponding path program 45 times [2021-06-05 11:15:34,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:15:34,928 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352409224] [2021-06-05 11:15:34,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:15:34,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:15:35,523 WARN L205 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 15 [2021-06-05 11:15:36,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:15:36,062 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:15:36,062 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352409224] [2021-06-05 11:15:36,062 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352409224] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:15:36,062 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:15:36,062 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-05 11:15:36,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129282926] [2021-06-05 11:15:36,062 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-05 11:15:36,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:15:36,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-05 11:15:36,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=857, Unknown=0, NotChecked=0, Total=930 [2021-06-05 11:15:36,063 INFO L87 Difference]: Start difference. First operand 160539 states and 496899 transitions. Second operand has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:15:37,274 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2021-06-05 11:15:37,982 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 71 [2021-06-05 11:15:38,453 WARN L205 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 75 [2021-06-05 11:15:38,699 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 75 [2021-06-05 11:15:39,013 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 76 [2021-06-05 11:15:39,286 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 80 [2021-06-05 11:15:39,511 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 85 [2021-06-05 11:15:39,833 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 87 [2021-06-05 11:15:40,215 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 90 [2021-06-05 11:15:40,597 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 83 [2021-06-05 11:15:40,756 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2021-06-05 11:15:41,136 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 88 [2021-06-05 11:15:42,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:15:42,455 INFO L93 Difference]: Finished difference Result 242559 states and 750177 transitions. [2021-06-05 11:15:42,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-05 11:15:42,456 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-06-05 11:15:42,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:15:43,070 INFO L225 Difference]: With dead ends: 242559 [2021-06-05 11:15:43,070 INFO L226 Difference]: Without dead ends: 242559 [2021-06-05 11:15:43,070 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 554 ImplicationChecksByTransitivity, 4665.6ms TimeCoverageRelationStatistics Valid=913, Invalid=3247, Unknown=0, NotChecked=0, Total=4160 [2021-06-05 11:15:44,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242559 states. [2021-06-05 11:15:46,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242559 to 161499. [2021-06-05 11:15:46,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161499 states, 161495 states have (on average 3.0949007709217002) internal successors, (499811), 161498 states have internal predecessors, (499811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:15:47,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161499 states to 161499 states and 499811 transitions. [2021-06-05 11:15:47,077 INFO L78 Accepts]: Start accepts. Automaton has 161499 states and 499811 transitions. Word has length 103 [2021-06-05 11:15:47,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:15:47,078 INFO L482 AbstractCegarLoop]: Abstraction has 161499 states and 499811 transitions. [2021-06-05 11:15:47,078 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:15:47,078 INFO L276 IsEmpty]: Start isEmpty. Operand 161499 states and 499811 transitions. [2021-06-05 11:15:47,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-06-05 11:15:47,232 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:15:47,232 INFO L521 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] [2021-06-05 11:15:47,232 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-06-05 11:15:47,232 INFO L430 AbstractCegarLoop]: === Iteration 52 === [reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr3ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, reader_twoErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_twoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:15:47,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:15:47,232 INFO L82 PathProgramCache]: Analyzing trace with hash -494405989, now seen corresponding path program 46 times [2021-06-05 11:15:47,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:15:47,233 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760995270] [2021-06-05 11:15:47,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:15:47,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:15:47,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:15:47,832 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:15:47,832 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760995270] [2021-06-05 11:15:47,832 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760995270] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:15:47,832 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:15:47,832 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-06-05 11:15:47,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471968823] [2021-06-05 11:15:47,832 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-06-05 11:15:47,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:15:47,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-06-05 11:15:47,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=800, Unknown=0, NotChecked=0, Total=870 [2021-06-05 11:15:47,833 INFO L87 Difference]: Start difference. First operand 161499 states and 499811 transitions. Second operand has 30 states, 30 states have (on average 3.433333333333333) internal successors, (103), 30 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:15:49,182 WARN L205 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 63 [2021-06-05 11:15:49,440 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2021-06-05 11:15:50,233 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 71 [2021-06-05 11:15:50,496 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 70 [2021-06-05 11:15:50,716 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 75 [2021-06-05 11:15:50,921 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 75 [2021-06-05 11:15:51,096 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 74 [2021-06-05 11:15:51,310 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 74 [2021-06-05 11:15:51,593 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 78 [2021-06-05 11:15:51,817 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 78 [2021-06-05 11:15:52,031 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 81 [2021-06-05 11:15:52,273 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 82 [2021-06-05 11:15:52,478 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 79 [2021-06-05 11:15:52,663 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 73 [2021-06-05 11:15:52,922 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 85 [2021-06-05 11:15:53,133 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 83 [2021-06-05 11:15:53,366 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 77 [2021-06-05 11:15:53,590 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 87 [2021-06-05 11:15:53,791 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 85 [2021-06-05 11:15:54,025 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 78 [2021-06-05 11:15:54,291 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 90 [2021-06-05 11:15:54,582 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 82 [2021-06-05 11:15:54,801 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 82 [2021-06-05 11:15:55,079 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 89 [2021-06-05 11:15:55,342 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 87 [2021-06-05 11:15:55,574 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 93 [2021-06-05 11:15:55,882 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 97 [2021-06-05 11:15:56,194 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 100 [2021-06-05 11:15:56,540 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 92 [2021-06-05 11:15:56,949 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 97 [2021-06-05 11:15:58,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:15:58,817 INFO L93 Difference]: Finished difference Result 242973 states and 751515 transitions. [2021-06-05 11:15:58,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-06-05 11:15:58,818 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.433333333333333) internal successors, (103), 30 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-06-05 11:15:58,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:15:59,239 INFO L225 Difference]: With dead ends: 242973 [2021-06-05 11:15:59,239 INFO L226 Difference]: Without dead ends: 242973 [2021-06-05 11:15:59,240 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 663 ImplicationChecksByTransitivity, 7655.3ms TimeCoverageRelationStatistics Valid=1572, Invalid=3830, Unknown=0, NotChecked=0, Total=5402 [2021-06-05 11:16:00,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242973 states. Received shutdown request... [2021-06-05 11:16:02,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242973 to 155709. [2021-06-05 11:16:02,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155709 states, 155705 states have (on average 3.0943001188144246) internal successors, (481798), 155708 states have internal predecessors, (481798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:16:02,916 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-06-05 11:16:02,916 WARN L547 AbstractCegarLoop]: Verification canceled [2021-06-05 11:16:02,918 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 11:16:02,920 WARN L196 ceAbstractionStarter]: Timeout [2021-06-05 11:16:02,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 11:16:02 BasicIcfg [2021-06-05 11:16:02,921 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 11:16:02,921 INFO L168 Benchmark]: Toolchain (without parser) took 710752.89 ms. Allocated memory was 352.3 MB in the beginning and 16.0 GB in the end (delta: 15.6 GB). Free memory was 313.8 MB in the beginning and 10.8 GB in the end (delta: -10.5 GB). Peak memory consumption was 5.8 GB. Max. memory is 16.0 GB. [2021-06-05 11:16:02,921 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 352.3 MB. Free memory was 332.6 MB in the beginning and 332.5 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 11:16:02,921 INFO L168 Benchmark]: CACSL2BoogieTranslator took 617.00 ms. Allocated memory is still 352.3 MB. Free memory was 313.5 MB in the beginning and 276.1 MB in the end (delta: 37.4 MB). Peak memory consumption was 38.6 MB. Max. memory is 16.0 GB. [2021-06-05 11:16:02,922 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.77 ms. Allocated memory is still 352.3 MB. Free memory was 276.1 MB in the beginning and 273.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-06-05 11:16:02,922 INFO L168 Benchmark]: Boogie Preprocessor took 29.21 ms. Allocated memory is still 352.3 MB. Free memory was 273.0 MB in the beginning and 270.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 11:16:02,922 INFO L168 Benchmark]: RCFGBuilder took 424.31 ms. Allocated memory is still 352.3 MB. Free memory was 270.9 MB in the beginning and 226.9 MB in the end (delta: 44.0 MB). Peak memory consumption was 44.0 MB. Max. memory is 16.0 GB. [2021-06-05 11:16:02,922 INFO L168 Benchmark]: TraceAbstraction took 709630.85 ms. Allocated memory was 352.3 MB in the beginning and 16.0 GB in the end (delta: 15.6 GB). Free memory was 225.8 MB in the beginning and 10.8 GB in the end (delta: -10.5 GB). Peak memory consumption was 5.7 GB. Max. memory is 16.0 GB. [2021-06-05 11:16:02,922 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 352.3 MB. Free memory was 332.6 MB in the beginning and 332.5 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 617.00 ms. Allocated memory is still 352.3 MB. Free memory was 313.5 MB in the beginning and 276.1 MB in the end (delta: 37.4 MB). Peak memory consumption was 38.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 45.77 ms. Allocated memory is still 352.3 MB. Free memory was 276.1 MB in the beginning and 273.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 29.21 ms. Allocated memory is still 352.3 MB. Free memory was 273.0 MB in the beginning and 270.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 424.31 ms. Allocated memory is still 352.3 MB. Free memory was 270.9 MB in the beginning and 226.9 MB in the end (delta: 44.0 MB). Peak memory consumption was 44.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 709630.85 ms. Allocated memory was 352.3 MB in the beginning and 16.0 GB in the end (delta: 15.6 GB). Free memory was 225.8 MB in the beginning and 10.8 GB in the end (delta: -10.5 GB). Peak memory consumption was 5.7 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1060]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 1065]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 1064]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 1075]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 1076]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 1061]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 311 locations, 10 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 709485.5ms, OverallIterations: 52, TraceHistogramMax: 1, EmptinessCheckTime: 7755.6ms, AutomataDifference: 487799.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6968.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 51824 SDtfs, 147399 SDslu, 562887 SDs, 0 SdLazy, 256441 SolverSat, 4327 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 104172.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3937 GetRequests, 141 SyntacticMatches, 14 SemanticMatches, 3782 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44645 ImplicationChecksByTransitivity, 337273.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=166239occurred in iteration=49, InterpolantAutomatonStates: 2551, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 169528.8ms AutomataMinimizationTime, 52 MinimizatonAttempts, 2580630 StatesRemovedByMinimization, 51 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 114.3ms SsaConstructionTime, 986.1ms SatisfiabilityAnalysisTime, 35807.9ms InterpolantComputationTime, 5243 NumberOfCodeBlocks, 5243 NumberOfCodeBlocksAsserted, 52 NumberOfCheckSat, 5191 ConstructedInterpolants, 0 QuantifiedInterpolants, 81672 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 52 InterpolantComputations, 52 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown