/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product38.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 12:27:45,255 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 12:27:45,257 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 12:27:45,342 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 12:27:45,343 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 12:27:45,343 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 12:27:45,344 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 12:27:45,348 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 12:27:45,350 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 12:27:45,350 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 12:27:45,351 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 12:27:45,351 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 12:27:45,352 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 12:27:45,352 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 12:27:45,353 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 12:27:45,353 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 12:27:45,354 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 12:27:45,355 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 12:27:45,356 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 12:27:45,357 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 12:27:45,358 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 12:27:45,367 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 12:27:45,370 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 12:27:45,371 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 12:27:45,374 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 12:27:45,374 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 12:27:45,374 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 12:27:45,375 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 12:27:45,375 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 12:27:45,375 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 12:27:45,376 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 12:27:45,376 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 12:27:45,377 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 12:27:45,377 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 12:27:45,378 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 12:27:45,378 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 12:27:45,378 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 12:27:45,378 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 12:27:45,378 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 12:27:45,379 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 12:27:45,379 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 12:27:45,384 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 12:27:45,413 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 12:27:45,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 12:27:45,414 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 12:27:45,414 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 12:27:45,414 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 12:27:45,415 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 12:27:45,415 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 12:27:45,415 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 12:27:45,415 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 12:27:45,415 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 12:27:45,416 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 12:27:45,416 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 12:27:45,416 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 12:27:45,416 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 12:27:45,416 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 12:27:45,416 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 12:27:45,416 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 12:27:45,416 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 12:27:45,416 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 12:27:45,417 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 12:27:45,417 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 12:27:45,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:27:45,417 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 12:27:45,417 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 12:27:45,417 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 12:27:45,417 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 12:27:45,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 12:27:45,417 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 12:27:45,418 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 12:27:45,418 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 12:27:45,418 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 12:27:45,418 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 12:27:45,418 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 12:27:45,418 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 12:27:45,628 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 12:27:45,648 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 12:27:45,650 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 12:27:45,651 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 12:27:45,651 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 12:27:45,652 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product38.cil.c [2022-01-10 12:27:45,700 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/882206922/893c28e735b44afc8e1f7f555a3a3352/FLAGe53ee5e74 [2022-01-10 12:27:46,042 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 12:27:46,052 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product38.cil.c [2022-01-10 12:27:46,067 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/882206922/893c28e735b44afc8e1f7f555a3a3352/FLAGe53ee5e74 [2022-01-10 12:27:46,432 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/882206922/893c28e735b44afc8e1f7f555a3a3352 [2022-01-10 12:27:46,434 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 12:27:46,437 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 12:27:46,438 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 12:27:46,438 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 12:27:46,440 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 12:27:46,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:27:46" (1/1) ... [2022-01-10 12:27:46,443 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@303a720f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:27:46, skipping insertion in model container [2022-01-10 12:27:46,443 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:27:46" (1/1) ... [2022-01-10 12:27:46,447 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 12:27:46,485 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:27:46,640 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product38.cil.c[1605,1618] [2022-01-10 12:27:46,759 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:27:46,770 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 12:27:46,778 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:27:46,783 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product38.cil.c[1605,1618] [2022-01-10 12:27:46,838 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:27:46,846 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 12:27:46,857 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product38.cil.c[1605,1618] [2022-01-10 12:27:46,903 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:27:46,914 INFO L208 MainTranslator]: Completed translation [2022-01-10 12:27:46,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:27:46 WrapperNode [2022-01-10 12:27:46,915 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 12:27:46,917 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 12:27:46,918 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 12:27:46,918 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 12:27:46,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:27:46" (1/1) ... [2022-01-10 12:27:46,946 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:27:46" (1/1) ... [2022-01-10 12:27:46,970 INFO L137 Inliner]: procedures = 58, calls = 157, calls flagged for inlining = 54, calls inlined = 85, statements flattened = 624 [2022-01-10 12:27:46,971 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 12:27:46,971 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 12:27:46,971 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 12:27:46,971 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 12:27:46,976 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:27:46" (1/1) ... [2022-01-10 12:27:46,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:27:46" (1/1) ... [2022-01-10 12:27:46,981 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:27:46" (1/1) ... [2022-01-10 12:27:46,981 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:27:46" (1/1) ... [2022-01-10 12:27:46,986 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:27:46" (1/1) ... [2022-01-10 12:27:46,990 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:27:46" (1/1) ... [2022-01-10 12:27:47,003 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:27:46" (1/1) ... [2022-01-10 12:27:47,005 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 12:27:47,006 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 12:27:47,006 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 12:27:47,006 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 12:27:47,010 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:27:46" (1/1) ... [2022-01-10 12:27:47,014 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:27:47,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 12:27:47,030 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 12:27:47,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 12:27:47,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 12:27:47,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 12:27:47,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 12:27:47,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 12:27:47,123 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 12:27:47,124 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 12:27:47,440 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 12:27:47,446 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 12:27:47,446 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-10 12:27:47,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:27:47 BoogieIcfgContainer [2022-01-10 12:27:47,447 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 12:27:47,448 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 12:27:47,448 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 12:27:47,449 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 12:27:47,452 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:27:47" (1/1) ... [2022-01-10 12:27:47,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:27:47 BasicIcfg [2022-01-10 12:27:47,530 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 12:27:47,531 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 12:27:47,531 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 12:27:47,533 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 12:27:47,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:27:46" (1/4) ... [2022-01-10 12:27:47,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@716671d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:27:47, skipping insertion in model container [2022-01-10 12:27:47,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:27:46" (2/4) ... [2022-01-10 12:27:47,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@716671d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:27:47, skipping insertion in model container [2022-01-10 12:27:47,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:27:47" (3/4) ... [2022-01-10 12:27:47,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@716671d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 12:27:47, skipping insertion in model container [2022-01-10 12:27:47,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:27:47" (4/4) ... [2022-01-10 12:27:47,534 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product38.cil.cTransformedIcfg [2022-01-10 12:27:47,538 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 12:27:47,538 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-10 12:27:47,567 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 12:27:47,571 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 12:27:47,571 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-10 12:27:47,583 INFO L276 IsEmpty]: Start isEmpty. Operand has 170 states, 166 states have (on average 1.3855421686746987) internal successors, (230), 169 states have internal predecessors, (230), 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) [2022-01-10 12:27:47,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-01-10 12:27:47,588 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:27:47,588 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:27:47,589 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:27:47,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:27:47,596 INFO L85 PathProgramCache]: Analyzing trace with hash 539637244, now seen corresponding path program 1 times [2022-01-10 12:27:47,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:27:47,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069888057] [2022-01-10 12:27:47,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:27:47,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:27:47,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:27:47,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:27:47,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:27:47,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069888057] [2022-01-10 12:27:47,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069888057] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:27:47,860 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:27:47,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:27:47,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889724998] [2022-01-10 12:27:47,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:27:47,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 12:27:47,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:27:47,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 12:27:47,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 12:27:47,889 INFO L87 Difference]: Start difference. First operand has 170 states, 166 states have (on average 1.3855421686746987) internal successors, (230), 169 states have internal predecessors, (230), 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 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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) [2022-01-10 12:27:47,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:27:47,935 INFO L93 Difference]: Finished difference Result 329 states and 448 transitions. [2022-01-10 12:27:47,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 12:27:47,937 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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 21 [2022-01-10 12:27:47,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:27:47,944 INFO L225 Difference]: With dead ends: 329 [2022-01-10 12:27:47,944 INFO L226 Difference]: Without dead ends: 160 [2022-01-10 12:27:47,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 12:27:47,950 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:27:47,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:27:47,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-01-10 12:27:47,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2022-01-10 12:27:47,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 157 states have (on average 1.3503184713375795) internal successors, (212), 159 states have internal predecessors, (212), 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) [2022-01-10 12:27:47,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 212 transitions. [2022-01-10 12:27:47,994 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 212 transitions. Word has length 21 [2022-01-10 12:27:47,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:27:47,995 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 212 transitions. [2022-01-10 12:27:47,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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) [2022-01-10 12:27:47,996 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 212 transitions. [2022-01-10 12:27:47,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-01-10 12:27:47,997 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:27:47,997 INFO L514 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] [2022-01-10 12:27:47,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 12:27:47,997 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:27:48,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:27:48,000 INFO L85 PathProgramCache]: Analyzing trace with hash 241000786, now seen corresponding path program 1 times [2022-01-10 12:27:48,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:27:48,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103295711] [2022-01-10 12:27:48,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:27:48,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:27:48,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:27:48,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:27:48,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:27:48,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103295711] [2022-01-10 12:27:48,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103295711] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:27:48,095 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:27:48,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:27:48,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755204254] [2022-01-10 12:27:48,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:27:48,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:27:48,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:27:48,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:27:48,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:27:48,101 INFO L87 Difference]: Start difference. First operand 160 states and 212 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 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) [2022-01-10 12:27:48,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:27:48,132 INFO L93 Difference]: Finished difference Result 312 states and 416 transitions. [2022-01-10 12:27:48,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:27:48,133 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 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 22 [2022-01-10 12:27:48,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:27:48,133 INFO L225 Difference]: With dead ends: 312 [2022-01-10 12:27:48,134 INFO L226 Difference]: Without dead ends: 160 [2022-01-10 12:27:48,134 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:27:48,135 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 194 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:27:48,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [194 Valid, 206 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:27:48,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-01-10 12:27:48,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2022-01-10 12:27:48,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 157 states have (on average 1.3312101910828025) internal successors, (209), 159 states have internal predecessors, (209), 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) [2022-01-10 12:27:48,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 209 transitions. [2022-01-10 12:27:48,152 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 209 transitions. Word has length 22 [2022-01-10 12:27:48,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:27:48,152 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 209 transitions. [2022-01-10 12:27:48,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 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) [2022-01-10 12:27:48,153 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 209 transitions. [2022-01-10 12:27:48,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-10 12:27:48,153 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:27:48,154 INFO L514 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] [2022-01-10 12:27:48,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 12:27:48,154 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:27:48,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:27:48,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1523604934, now seen corresponding path program 1 times [2022-01-10 12:27:48,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:27:48,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852314032] [2022-01-10 12:27:48,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:27:48,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:27:48,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:27:48,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:27:48,214 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:27:48,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852314032] [2022-01-10 12:27:48,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852314032] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:27:48,214 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:27:48,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:27:48,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651677080] [2022-01-10 12:27:48,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:27:48,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:27:48,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:27:48,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:27:48,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:27:48,216 INFO L87 Difference]: Start difference. First operand 160 states and 209 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 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) [2022-01-10 12:27:48,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:27:48,298 INFO L93 Difference]: Finished difference Result 383 states and 500 transitions. [2022-01-10 12:27:48,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:27:48,298 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 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 27 [2022-01-10 12:27:48,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:27:48,299 INFO L225 Difference]: With dead ends: 383 [2022-01-10 12:27:48,299 INFO L226 Difference]: Without dead ends: 231 [2022-01-10 12:27:48,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:27:48,301 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 139 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:27:48,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 308 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:27:48,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2022-01-10 12:27:48,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 225. [2022-01-10 12:27:48,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 222 states have (on average 1.2927927927927927) internal successors, (287), 224 states have internal predecessors, (287), 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) [2022-01-10 12:27:48,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 287 transitions. [2022-01-10 12:27:48,321 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 287 transitions. Word has length 27 [2022-01-10 12:27:48,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:27:48,321 INFO L470 AbstractCegarLoop]: Abstraction has 225 states and 287 transitions. [2022-01-10 12:27:48,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 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) [2022-01-10 12:27:48,322 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 287 transitions. [2022-01-10 12:27:48,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-01-10 12:27:48,326 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:27:48,326 INFO L514 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] [2022-01-10 12:27:48,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 12:27:48,327 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:27:48,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:27:48,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1038635349, now seen corresponding path program 1 times [2022-01-10 12:27:48,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:27:48,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969279552] [2022-01-10 12:27:48,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:27:48,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:27:48,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:27:48,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:27:48,416 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:27:48,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969279552] [2022-01-10 12:27:48,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969279552] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:27:48,417 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:27:48,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:27:48,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727705459] [2022-01-10 12:27:48,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:27:48,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:27:48,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:27:48,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:27:48,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:27:48,420 INFO L87 Difference]: Start difference. First operand 225 states and 287 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 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) [2022-01-10 12:27:48,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:27:48,623 INFO L93 Difference]: Finished difference Result 786 states and 992 transitions. [2022-01-10 12:27:48,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 12:27:48,623 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 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 33 [2022-01-10 12:27:48,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:27:48,625 INFO L225 Difference]: With dead ends: 786 [2022-01-10 12:27:48,625 INFO L226 Difference]: Without dead ends: 569 [2022-01-10 12:27:48,626 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:27:48,627 INFO L933 BasicCegarLoop]: 472 mSDtfsCounter, 471 mSDsluCounter, 786 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 1258 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:27:48,627 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [471 Valid, 1258 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:27:48,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2022-01-10 12:27:48,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 222. [2022-01-10 12:27:48,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 219 states have (on average 1.269406392694064) internal successors, (278), 221 states have internal predecessors, (278), 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) [2022-01-10 12:27:48,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 278 transitions. [2022-01-10 12:27:48,644 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 278 transitions. Word has length 33 [2022-01-10 12:27:48,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:27:48,645 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 278 transitions. [2022-01-10 12:27:48,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 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) [2022-01-10 12:27:48,645 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 278 transitions. [2022-01-10 12:27:48,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-01-10 12:27:48,645 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:27:48,645 INFO L514 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] [2022-01-10 12:27:48,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 12:27:48,646 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:27:48,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:27:48,646 INFO L85 PathProgramCache]: Analyzing trace with hash 954829515, now seen corresponding path program 1 times [2022-01-10 12:27:48,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:27:48,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736811115] [2022-01-10 12:27:48,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:27:48,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:27:48,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:27:48,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:27:48,683 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:27:48,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736811115] [2022-01-10 12:27:48,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736811115] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:27:48,683 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:27:48,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:27:48,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390712713] [2022-01-10 12:27:48,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:27:48,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:27:48,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:27:48,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:27:48,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:27:48,685 INFO L87 Difference]: Start difference. First operand 222 states and 278 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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) [2022-01-10 12:27:48,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:27:48,782 INFO L93 Difference]: Finished difference Result 587 states and 725 transitions. [2022-01-10 12:27:48,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 12:27:48,782 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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 33 [2022-01-10 12:27:48,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:27:48,784 INFO L225 Difference]: With dead ends: 587 [2022-01-10 12:27:48,784 INFO L226 Difference]: Without dead ends: 373 [2022-01-10 12:27:48,784 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 12:27:48,785 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 354 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 877 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:27:48,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [354 Valid, 877 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:27:48,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2022-01-10 12:27:48,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 240. [2022-01-10 12:27:48,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 237 states have (on average 1.248945147679325) internal successors, (296), 239 states have internal predecessors, (296), 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) [2022-01-10 12:27:48,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 296 transitions. [2022-01-10 12:27:48,801 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 296 transitions. Word has length 33 [2022-01-10 12:27:48,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:27:48,801 INFO L470 AbstractCegarLoop]: Abstraction has 240 states and 296 transitions. [2022-01-10 12:27:48,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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) [2022-01-10 12:27:48,802 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 296 transitions. [2022-01-10 12:27:48,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-01-10 12:27:48,802 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:27:48,802 INFO L514 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] [2022-01-10 12:27:48,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 12:27:48,803 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:27:48,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:27:48,803 INFO L85 PathProgramCache]: Analyzing trace with hash 449270890, now seen corresponding path program 1 times [2022-01-10 12:27:48,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:27:48,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505619327] [2022-01-10 12:27:48,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:27:48,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:27:48,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:27:48,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:27:48,828 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:27:48,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505619327] [2022-01-10 12:27:48,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505619327] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:27:48,828 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:27:48,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:27:48,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872590078] [2022-01-10 12:27:48,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:27:48,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 12:27:48,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:27:48,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 12:27:48,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:27:48,829 INFO L87 Difference]: Start difference. First operand 240 states and 296 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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) [2022-01-10 12:27:48,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:27:48,903 INFO L93 Difference]: Finished difference Result 650 states and 788 transitions. [2022-01-10 12:27:48,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:27:48,903 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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 33 [2022-01-10 12:27:48,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:27:48,905 INFO L225 Difference]: With dead ends: 650 [2022-01-10 12:27:48,905 INFO L226 Difference]: Without dead ends: 418 [2022-01-10 12:27:48,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:27:48,906 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 315 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:27:48,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [315 Valid, 641 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:27:48,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2022-01-10 12:27:48,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 252. [2022-01-10 12:27:48,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 249 states have (on average 1.2369477911646587) internal successors, (308), 251 states have internal predecessors, (308), 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) [2022-01-10 12:27:48,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 308 transitions. [2022-01-10 12:27:48,922 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 308 transitions. Word has length 33 [2022-01-10 12:27:48,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:27:48,922 INFO L470 AbstractCegarLoop]: Abstraction has 252 states and 308 transitions. [2022-01-10 12:27:48,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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) [2022-01-10 12:27:48,922 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 308 transitions. [2022-01-10 12:27:48,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-01-10 12:27:48,923 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:27:48,923 INFO L514 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] [2022-01-10 12:27:48,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 12:27:48,923 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:27:48,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:27:48,923 INFO L85 PathProgramCache]: Analyzing trace with hash -61263287, now seen corresponding path program 1 times [2022-01-10 12:27:48,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:27:48,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579531976] [2022-01-10 12:27:48,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:27:48,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:27:48,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:27:48,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:27:48,970 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:27:48,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579531976] [2022-01-10 12:27:48,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579531976] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:27:48,970 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:27:48,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:27:48,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140349316] [2022-01-10 12:27:48,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:27:48,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:27:48,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:27:48,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:27:48,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:27:48,971 INFO L87 Difference]: Start difference. First operand 252 states and 308 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 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) [2022-01-10 12:27:49,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:27:49,027 INFO L93 Difference]: Finished difference Result 581 states and 706 transitions. [2022-01-10 12:27:49,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:27:49,027 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 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 33 [2022-01-10 12:27:49,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:27:49,028 INFO L225 Difference]: With dead ends: 581 [2022-01-10 12:27:49,028 INFO L226 Difference]: Without dead ends: 288 [2022-01-10 12:27:49,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:27:49,029 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 84 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:27:49,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 368 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:27:49,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2022-01-10 12:27:49,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 288. [2022-01-10 12:27:49,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 285 states have (on average 1.2280701754385965) internal successors, (350), 287 states have internal predecessors, (350), 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) [2022-01-10 12:27:49,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 350 transitions. [2022-01-10 12:27:49,048 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 350 transitions. Word has length 33 [2022-01-10 12:27:49,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:27:49,048 INFO L470 AbstractCegarLoop]: Abstraction has 288 states and 350 transitions. [2022-01-10 12:27:49,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 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) [2022-01-10 12:27:49,049 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 350 transitions. [2022-01-10 12:27:49,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-01-10 12:27:49,049 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:27:49,049 INFO L514 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] [2022-01-10 12:27:49,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 12:27:49,050 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:27:49,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:27:49,050 INFO L85 PathProgramCache]: Analyzing trace with hash -2011645304, now seen corresponding path program 1 times [2022-01-10 12:27:49,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:27:49,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73070203] [2022-01-10 12:27:49,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:27:49,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:27:49,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:27:49,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:27:49,130 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:27:49,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73070203] [2022-01-10 12:27:49,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73070203] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:27:49,131 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:27:49,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:27:49,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474031079] [2022-01-10 12:27:49,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:27:49,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 12:27:49,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:27:49,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 12:27:49,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 12:27:49,132 INFO L87 Difference]: Start difference. First operand 288 states and 350 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 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) [2022-01-10 12:27:49,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:27:49,392 INFO L93 Difference]: Finished difference Result 1400 states and 1709 transitions. [2022-01-10 12:27:49,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 12:27:49,392 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 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 42 [2022-01-10 12:27:49,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:27:49,395 INFO L225 Difference]: With dead ends: 1400 [2022-01-10 12:27:49,395 INFO L226 Difference]: Without dead ends: 1026 [2022-01-10 12:27:49,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-01-10 12:27:49,397 INFO L933 BasicCegarLoop]: 376 mSDtfsCounter, 921 mSDsluCounter, 1010 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 921 SdHoareTripleChecker+Valid, 1386 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:27:49,398 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [921 Valid, 1386 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:27:49,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1026 states. [2022-01-10 12:27:49,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1026 to 527. [2022-01-10 12:27:49,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 524 states have (on average 1.200381679389313) internal successors, (629), 526 states have internal predecessors, (629), 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) [2022-01-10 12:27:49,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 629 transitions. [2022-01-10 12:27:49,442 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 629 transitions. Word has length 42 [2022-01-10 12:27:49,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:27:49,442 INFO L470 AbstractCegarLoop]: Abstraction has 527 states and 629 transitions. [2022-01-10 12:27:49,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 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) [2022-01-10 12:27:49,443 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 629 transitions. [2022-01-10 12:27:49,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-10 12:27:49,444 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:27:49,444 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:27:49,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 12:27:49,444 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:27:49,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:27:49,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1686354378, now seen corresponding path program 1 times [2022-01-10 12:27:49,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:27:49,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937455358] [2022-01-10 12:27:49,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:27:49,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:27:49,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:27:49,496 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:27:49,496 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:27:49,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937455358] [2022-01-10 12:27:49,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937455358] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:27:49,497 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:27:49,497 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:27:49,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061902950] [2022-01-10 12:27:49,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:27:49,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:27:49,498 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:27:49,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:27:49,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:27:49,501 INFO L87 Difference]: Start difference. First operand 527 states and 629 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2022-01-10 12:27:49,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:27:49,535 INFO L93 Difference]: Finished difference Result 527 states and 629 transitions. [2022-01-10 12:27:49,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:27:49,535 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 64 [2022-01-10 12:27:49,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:27:49,537 INFO L225 Difference]: With dead ends: 527 [2022-01-10 12:27:49,537 INFO L226 Difference]: Without dead ends: 252 [2022-01-10 12:27:49,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:27:49,539 INFO L933 BasicCegarLoop]: 84 mSDtfsCounter, 45 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:27:49,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 91 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:27:49,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2022-01-10 12:27:49,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2022-01-10 12:27:49,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 251 states have (on average 1.2310756972111554) internal successors, (309), 251 states have internal predecessors, (309), 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) [2022-01-10 12:27:49,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 309 transitions. [2022-01-10 12:27:49,575 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 309 transitions. Word has length 64 [2022-01-10 12:27:49,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:27:49,575 INFO L470 AbstractCegarLoop]: Abstraction has 252 states and 309 transitions. [2022-01-10 12:27:49,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2022-01-10 12:27:49,575 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 309 transitions. [2022-01-10 12:27:49,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-01-10 12:27:49,576 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:27:49,576 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:27:49,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 12:27:49,576 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:27:49,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:27:49,577 INFO L85 PathProgramCache]: Analyzing trace with hash -484728790, now seen corresponding path program 1 times [2022-01-10 12:27:49,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:27:49,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713667096] [2022-01-10 12:27:49,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:27:49,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:27:49,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:27:49,616 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:27:49,616 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:27:49,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713667096] [2022-01-10 12:27:49,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713667096] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 12:27:49,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1146029730] [2022-01-10 12:27:49,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:27:49,616 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 12:27:49,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 12:27:49,618 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 12:27:49,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-10 12:27:49,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:27:49,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 605 conjuncts, 5 conjunts are in the unsatisfiable core [2022-01-10 12:27:49,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 12:27:49,858 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:27:49,858 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 12:27:49,946 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:27:49,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1146029730] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 12:27:49,946 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 12:27:49,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2022-01-10 12:27:49,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397986545] [2022-01-10 12:27:49,946 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 12:27:49,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:27:49,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:27:49,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:27:49,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:27:49,947 INFO L87 Difference]: Start difference. First operand 252 states and 309 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 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) [2022-01-10 12:27:50,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:27:50,021 INFO L93 Difference]: Finished difference Result 628 states and 790 transitions. [2022-01-10 12:27:50,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 12:27:50,022 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 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 71 [2022-01-10 12:27:50,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:27:50,024 INFO L225 Difference]: With dead ends: 628 [2022-01-10 12:27:50,024 INFO L226 Difference]: Without dead ends: 384 [2022-01-10 12:27:50,024 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 144 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 12:27:50,025 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 164 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:27:50,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 440 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:27:50,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2022-01-10 12:27:50,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 237. [2022-01-10 12:27:50,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 236 states have (on average 1.2076271186440677) internal successors, (285), 236 states have internal predecessors, (285), 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) [2022-01-10 12:27:50,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 285 transitions. [2022-01-10 12:27:50,048 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 285 transitions. Word has length 71 [2022-01-10 12:27:50,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:27:50,048 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 285 transitions. [2022-01-10 12:27:50,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 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) [2022-01-10 12:27:50,048 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 285 transitions. [2022-01-10 12:27:50,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-01-10 12:27:50,049 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:27:50,049 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:27:50,069 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-10 12:27:50,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-01-10 12:27:50,264 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:27:50,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:27:50,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1910915283, now seen corresponding path program 1 times [2022-01-10 12:27:50,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:27:50,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203147849] [2022-01-10 12:27:50,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:27:50,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:27:50,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:27:50,368 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 74 proven. 3 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-01-10 12:27:50,369 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:27:50,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203147849] [2022-01-10 12:27:50,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203147849] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 12:27:50,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [100623706] [2022-01-10 12:27:50,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:27:50,372 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 12:27:50,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 12:27:50,388 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 12:27:50,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-10 12:27:50,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:27:50,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 877 conjuncts, 15 conjunts are in the unsatisfiable core [2022-01-10 12:27:50,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 12:27:50,700 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 72 proven. 2 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-01-10 12:27:50,701 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 12:27:50,873 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 72 proven. 2 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-01-10 12:27:50,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [100623706] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 12:27:50,873 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 12:27:50,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 13 [2022-01-10 12:27:50,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278141714] [2022-01-10 12:27:50,873 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 12:27:50,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-10 12:27:50,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:27:50,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-10 12:27:50,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-01-10 12:27:50,874 INFO L87 Difference]: Start difference. First operand 237 states and 285 transitions. Second operand has 13 states, 13 states have (on average 13.846153846153847) internal successors, (180), 13 states have internal predecessors, (180), 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) [2022-01-10 12:27:51,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:27:51,728 INFO L93 Difference]: Finished difference Result 1591 states and 1928 transitions. [2022-01-10 12:27:51,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-01-10 12:27:51,728 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 13.846153846153847) internal successors, (180), 13 states have internal predecessors, (180), 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 128 [2022-01-10 12:27:51,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:27:51,731 INFO L225 Difference]: With dead ends: 1591 [2022-01-10 12:27:51,731 INFO L226 Difference]: Without dead ends: 1314 [2022-01-10 12:27:51,733 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 906 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=612, Invalid=2580, Unknown=0, NotChecked=0, Total=3192 [2022-01-10 12:27:51,733 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 1416 mSDsluCounter, 1192 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1416 SdHoareTripleChecker+Valid, 1332 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 12:27:51,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1416 Valid, 1332 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 12:27:51,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2022-01-10 12:27:51,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 578. [2022-01-10 12:27:51,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 577 states have (on average 1.1785095320623917) internal successors, (680), 577 states have internal predecessors, (680), 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) [2022-01-10 12:27:51,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 680 transitions. [2022-01-10 12:27:51,801 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 680 transitions. Word has length 128 [2022-01-10 12:27:51,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:27:51,801 INFO L470 AbstractCegarLoop]: Abstraction has 578 states and 680 transitions. [2022-01-10 12:27:51,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 13.846153846153847) internal successors, (180), 13 states have internal predecessors, (180), 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) [2022-01-10 12:27:51,801 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 680 transitions. [2022-01-10 12:27:51,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 12:27:51,802 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:27:51,803 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:27:51,822 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-10 12:27:52,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-01-10 12:27:52,020 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:27:52,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:27:52,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1791010716, now seen corresponding path program 1 times [2022-01-10 12:27:52,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:27:52,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538822388] [2022-01-10 12:27:52,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:27:52,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:27:52,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:27:52,131 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-01-10 12:27:52,131 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:27:52,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538822388] [2022-01-10 12:27:52,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538822388] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:27:52,131 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:27:52,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 12:27:52,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016072455] [2022-01-10 12:27:52,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:27:52,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 12:27:52,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:27:52,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 12:27:52,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 12:27:52,132 INFO L87 Difference]: Start difference. First operand 578 states and 680 transitions. Second operand has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 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) [2022-01-10 12:27:52,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:27:52,292 INFO L93 Difference]: Finished difference Result 1515 states and 1788 transitions. [2022-01-10 12:27:52,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 12:27:52,292 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 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 132 [2022-01-10 12:27:52,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:27:52,295 INFO L225 Difference]: With dead ends: 1515 [2022-01-10 12:27:52,295 INFO L226 Difference]: Without dead ends: 945 [2022-01-10 12:27:52,296 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-10 12:27:52,296 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 377 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:27:52,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [377 Valid, 690 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:27:52,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2022-01-10 12:27:52,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 545. [2022-01-10 12:27:52,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 544 states have (on average 1.1636029411764706) internal successors, (633), 544 states have internal predecessors, (633), 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) [2022-01-10 12:27:52,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 633 transitions. [2022-01-10 12:27:52,355 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 633 transitions. Word has length 132 [2022-01-10 12:27:52,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:27:52,355 INFO L470 AbstractCegarLoop]: Abstraction has 545 states and 633 transitions. [2022-01-10 12:27:52,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 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) [2022-01-10 12:27:52,355 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 633 transitions. [2022-01-10 12:27:52,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 12:27:52,356 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:27:52,356 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:27:52,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 12:27:52,357 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:27:52,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:27:52,357 INFO L85 PathProgramCache]: Analyzing trace with hash -492671494, now seen corresponding path program 2 times [2022-01-10 12:27:52,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:27:52,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524219435] [2022-01-10 12:27:52,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:27:52,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:27:52,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:27:52,471 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 111 proven. 2 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-01-10 12:27:52,471 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:27:52,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524219435] [2022-01-10 12:27:52,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524219435] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 12:27:52,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1588940742] [2022-01-10 12:27:52,472 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-10 12:27:52,472 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 12:27:52,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 12:27:52,473 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 12:27:52,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-10 12:27:52,640 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-10 12:27:52,640 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-10 12:27:52,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 904 conjuncts, 18 conjunts are in the unsatisfiable core [2022-01-10 12:27:52,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 12:27:52,874 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 111 proven. 2 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-01-10 12:27:52,874 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 12:27:53,099 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-01-10 12:27:53,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1588940742] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-10 12:27:53,099 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-10 12:27:53,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8, 8] total 20 [2022-01-10 12:27:53,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213977381] [2022-01-10 12:27:53,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:27:53,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 12:27:53,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:27:53,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 12:27:53,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2022-01-10 12:27:53,101 INFO L87 Difference]: Start difference. First operand 545 states and 633 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 8 states have internal predecessors, (113), 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) [2022-01-10 12:27:53,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:27:53,485 INFO L93 Difference]: Finished difference Result 1731 states and 2037 transitions. [2022-01-10 12:27:53,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-10 12:27:53,486 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 8 states have internal predecessors, (113), 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 132 [2022-01-10 12:27:53,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:27:53,490 INFO L225 Difference]: With dead ends: 1731 [2022-01-10 12:27:53,490 INFO L226 Difference]: Without dead ends: 1426 [2022-01-10 12:27:53,491 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=183, Invalid=809, Unknown=0, NotChecked=0, Total=992 [2022-01-10 12:27:53,491 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 766 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:27:53,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [766 Valid, 607 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:27:53,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2022-01-10 12:27:53,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 928. [2022-01-10 12:27:53,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 928 states, 927 states have (on average 1.174757281553398) internal successors, (1089), 927 states have internal predecessors, (1089), 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) [2022-01-10 12:27:53,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1089 transitions. [2022-01-10 12:27:53,641 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1089 transitions. Word has length 132 [2022-01-10 12:27:53,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:27:53,641 INFO L470 AbstractCegarLoop]: Abstraction has 928 states and 1089 transitions. [2022-01-10 12:27:53,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 8 states have internal predecessors, (113), 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) [2022-01-10 12:27:53,642 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1089 transitions. [2022-01-10 12:27:53,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-10 12:27:53,656 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:27:53,656 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:27:53,675 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-10 12:27:53,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 12:27:53,857 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:27:53,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:27:53,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1721860722, now seen corresponding path program 3 times [2022-01-10 12:27:53,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:27:53,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473255298] [2022-01-10 12:27:53,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:27:53,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:27:53,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:27:53,946 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-01-10 12:27:53,946 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:27:53,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473255298] [2022-01-10 12:27:53,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473255298] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:27:53,947 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:27:53,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:27:53,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568153268] [2022-01-10 12:27:53,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:27:53,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:27:53,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:27:53,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:27:53,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:27:53,948 INFO L87 Difference]: Start difference. First operand 928 states and 1089 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 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) [2022-01-10 12:27:54,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:27:54,238 INFO L93 Difference]: Finished difference Result 1971 states and 2311 transitions. [2022-01-10 12:27:54,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 12:27:54,251 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 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 134 [2022-01-10 12:27:54,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:27:54,256 INFO L225 Difference]: With dead ends: 1971 [2022-01-10 12:27:54,257 INFO L226 Difference]: Without dead ends: 1051 [2022-01-10 12:27:54,258 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 12:27:54,258 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 127 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:27:54,259 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 437 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:27:54,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1051 states. [2022-01-10 12:27:54,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1051 to 928. [2022-01-10 12:27:54,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 928 states, 927 states have (on average 1.1672060409924487) internal successors, (1082), 927 states have internal predecessors, (1082), 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) [2022-01-10 12:27:54,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1082 transitions. [2022-01-10 12:27:54,379 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1082 transitions. Word has length 134 [2022-01-10 12:27:54,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:27:54,380 INFO L470 AbstractCegarLoop]: Abstraction has 928 states and 1082 transitions. [2022-01-10 12:27:54,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 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) [2022-01-10 12:27:54,380 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1082 transitions. [2022-01-10 12:27:54,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-10 12:27:54,381 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:27:54,381 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:27:54,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 12:27:54,381 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:27:54,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:27:54,382 INFO L85 PathProgramCache]: Analyzing trace with hash 865179936, now seen corresponding path program 1 times [2022-01-10 12:27:54,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:27:54,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510173779] [2022-01-10 12:27:54,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:27:54,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:27:54,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:27:54,498 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 26 proven. 106 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 12:27:54,498 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:27:54,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510173779] [2022-01-10 12:27:54,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510173779] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 12:27:54,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [633771394] [2022-01-10 12:27:54,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:27:54,498 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 12:27:54,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 12:27:54,499 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 12:27:54,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-10 12:27:54,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:27:54,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 925 conjuncts, 25 conjunts are in the unsatisfiable core [2022-01-10 12:27:54,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 12:27:55,093 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 65 proven. 70 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-01-10 12:27:55,093 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 12:27:57,092 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 77 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:27:57,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [633771394] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 12:27:57,093 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 12:27:57,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 10] total 21 [2022-01-10 12:27:57,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944891396] [2022-01-10 12:27:57,093 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 12:27:57,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-10 12:27:57,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:27:57,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-10 12:27:57,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=311, Unknown=0, NotChecked=0, Total=420 [2022-01-10 12:27:57,094 INFO L87 Difference]: Start difference. First operand 928 states and 1082 transitions. Second operand has 21 states, 21 states have (on average 14.666666666666666) internal successors, (308), 21 states have internal predecessors, (308), 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) [2022-01-10 12:27:57,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:27:57,430 INFO L93 Difference]: Finished difference Result 1813 states and 2126 transitions. [2022-01-10 12:27:57,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 12:27:57,431 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 14.666666666666666) internal successors, (308), 21 states have internal predecessors, (308), 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 135 [2022-01-10 12:27:57,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:27:57,431 INFO L225 Difference]: With dead ends: 1813 [2022-01-10 12:27:57,431 INFO L226 Difference]: Without dead ends: 0 [2022-01-10 12:27:57,433 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 257 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=179, Invalid=471, Unknown=0, NotChecked=0, Total=650 [2022-01-10 12:27:57,433 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 1063 mSDsluCounter, 1219 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1063 SdHoareTripleChecker+Valid, 1438 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:27:57,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1063 Valid, 1438 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:27:57,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-10 12:27:57,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-10 12:27:57,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-01-10 12:27:57,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-10 12:27:57,434 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 135 [2022-01-10 12:27:57,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:27:57,434 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-10 12:27:57,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 14.666666666666666) internal successors, (308), 21 states have internal predecessors, (308), 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) [2022-01-10 12:27:57,434 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-10 12:27:57,434 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-10 12:27:57,436 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-10 12:27:57,436 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-01-10 12:27:57,436 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-01-10 12:27:57,477 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-01-10 12:27:57,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-01-10 12:27:57,653 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-10 12:28:22,805 WARN L228 SmtUtils]: Spent 21.62s on a formula simplification. DAG size of input: 300 DAG size of output: 294 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-01-10 12:28:30,614 WARN L228 SmtUtils]: Spent 5.33s on a formula simplification. DAG size of input: 319 DAG size of output: 315 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-01-10 12:28:42,216 WARN L228 SmtUtils]: Spent 9.76s on a formula simplification. DAG size of input: 337 DAG size of output: 332 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-01-10 12:28:51,392 WARN L228 SmtUtils]: Spent 5.02s on a formula simplification. DAG size of input: 279 DAG size of output: 274 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or)