/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_SUM.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec7_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 05:47:24,555 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 05:47:24,556 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 05:47:24,585 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 05:47:24,586 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 05:47:24,586 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 05:47:24,587 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 05:47:24,589 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 05:47:24,590 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 05:47:24,590 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 05:47:24,608 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 05:47:24,609 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 05:47:24,609 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 05:47:24,609 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 05:47:24,610 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 05:47:24,611 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 05:47:24,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 05:47:24,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 05:47:24,613 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 05:47:24,614 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 05:47:24,615 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 05:47:24,617 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 05:47:24,618 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 05:47:24,618 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 05:47:24,620 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 05:47:24,620 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 05:47:24,620 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 05:47:24,621 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 05:47:24,621 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 05:47:24,622 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 05:47:24,622 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 05:47:24,622 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 05:47:24,623 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 05:47:24,623 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 05:47:24,624 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 05:47:24,624 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 05:47:24,625 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 05:47:24,625 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 05:47:24,625 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 05:47:24,626 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 05:47:24,626 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 05:47:24,635 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 05:47:24,655 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 05:47:24,655 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 05:47:24,655 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 05:47:24,656 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 05:47:24,656 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 05:47:24,656 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 05:47:24,656 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 05:47:24,657 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 05:47:24,657 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 05:47:24,657 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 05:47:24,657 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 05:47:24,657 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 05:47:24,657 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 05:47:24,657 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 05:47:24,657 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 05:47:24,657 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 05:47:24,657 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 05:47:24,657 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 05:47:24,657 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 05:47:24,658 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 05:47:24,658 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 05:47:24,658 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:47:24,658 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 05:47:24,658 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 05:47:24,658 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 05:47:24,658 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 05:47:24,658 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 05:47:24,658 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 05:47:24,658 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 05:47:24,658 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 05:47:24,658 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 05:47:24,659 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 05:47:24,663 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 05:47:24,663 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 05:47:24,867 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 05:47:24,887 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 05:47:24,889 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 05:47:24,890 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 05:47:24,890 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 05:47:24,891 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec7_product33.cil.c [2022-01-11 05:47:24,953 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85c7d809c/08186d595bc848b6b625544fe8915db9/FLAGeae98f9a9 [2022-01-11 05:47:25,382 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 05:47:25,382 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec7_product33.cil.c [2022-01-11 05:47:25,396 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85c7d809c/08186d595bc848b6b625544fe8915db9/FLAGeae98f9a9 [2022-01-11 05:47:25,404 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85c7d809c/08186d595bc848b6b625544fe8915db9 [2022-01-11 05:47:25,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 05:47:25,407 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 05:47:25,423 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 05:47:25,424 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 05:47:25,428 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 05:47:25,429 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:47:25" (1/1) ... [2022-01-11 05:47:25,430 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17a54022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:47:25, skipping insertion in model container [2022-01-11 05:47:25,430 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:47:25" (1/1) ... [2022-01-11 05:47:25,434 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 05:47:25,495 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:47:25,829 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/email_spec7_product33.cil.c[20852,20865] [2022-01-11 05:47:25,984 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:47:25,992 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 05:47:26,006 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:47:26,024 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/email_spec7_product33.cil.c[20852,20865] [2022-01-11 05:47:26,052 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:47:26,061 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 05:47:26,089 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/email_spec7_product33.cil.c[20852,20865] [2022-01-11 05:47:26,123 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:47:26,150 INFO L208 MainTranslator]: Completed translation [2022-01-11 05:47:26,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:47:26 WrapperNode [2022-01-11 05:47:26,150 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 05:47:26,151 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 05:47:26,151 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 05:47:26,151 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 05:47:26,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:47:26" (1/1) ... [2022-01-11 05:47:26,196 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:47:26" (1/1) ... [2022-01-11 05:47:26,268 INFO L137 Inliner]: procedures = 136, calls = 225, calls flagged for inlining = 136, calls inlined = 203, statements flattened = 2947 [2022-01-11 05:47:26,269 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 05:47:26,269 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 05:47:26,269 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 05:47:26,269 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 05:47:26,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:47:26" (1/1) ... [2022-01-11 05:47:26,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:47:26" (1/1) ... [2022-01-11 05:47:26,289 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:47:26" (1/1) ... [2022-01-11 05:47:26,291 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:47:26" (1/1) ... [2022-01-11 05:47:26,318 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:47:26" (1/1) ... [2022-01-11 05:47:26,337 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:47:26" (1/1) ... [2022-01-11 05:47:26,352 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:47:26" (1/1) ... [2022-01-11 05:47:26,366 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 05:47:26,367 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 05:47:26,367 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 05:47:26,367 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 05:47:26,371 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:47:26" (1/1) ... [2022-01-11 05:47:26,377 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:47:26,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:47:26,393 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) [2022-01-11 05:47:26,398 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 [2022-01-11 05:47:26,430 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-01-11 05:47:26,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 05:47:26,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 05:47:26,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 05:47:26,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 05:47:26,694 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 05:47:26,695 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 05:47:27,845 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 05:47:27,856 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 05:47:27,856 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 05:47:27,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:47:27 BoogieIcfgContainer [2022-01-11 05:47:27,858 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 05:47:27,859 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 05:47:27,862 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 05:47:27,864 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 05:47:27,866 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:47:27" (1/1) ... [2022-01-11 05:47:28,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:47:28 BasicIcfg [2022-01-11 05:47:28,167 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 05:47:28,169 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 05:47:28,169 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 05:47:28,171 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 05:47:28,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:47:25" (1/4) ... [2022-01-11 05:47:28,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a0dd264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:47:28, skipping insertion in model container [2022-01-11 05:47:28,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:47:26" (2/4) ... [2022-01-11 05:47:28,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a0dd264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:47:28, skipping insertion in model container [2022-01-11 05:47:28,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:47:27" (3/4) ... [2022-01-11 05:47:28,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a0dd264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:47:28, skipping insertion in model container [2022-01-11 05:47:28,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:47:28" (4/4) ... [2022-01-11 05:47:28,173 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec7_product33.cil.cTransformedIcfg [2022-01-11 05:47:28,176 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 05:47:28,176 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-11 05:47:28,218 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 05:47:28,223 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 [2022-01-11 05:47:28,223 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-11 05:47:28,244 INFO L276 IsEmpty]: Start isEmpty. Operand has 645 states, 642 states have (on average 1.6682242990654206) internal successors, (1071), 644 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:28,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-11 05:47:28,254 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:47:28,255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:47:28,255 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:47:28,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:47:28,260 INFO L85 PathProgramCache]: Analyzing trace with hash -500678784, now seen corresponding path program 1 times [2022-01-11 05:47:28,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:47:28,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711672589] [2022-01-11 05:47:28,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:47:28,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:47:28,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:47:28,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:47:28,497 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:47:28,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711672589] [2022-01-11 05:47:28,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711672589] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:47:28,497 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:47:28,497 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 05:47:28,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463073435] [2022-01-11 05:47:28,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:47:28,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-11 05:47:28,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:47:28,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-11 05:47:28,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 05:47:28,525 INFO L87 Difference]: Start difference. First operand has 645 states, 642 states have (on average 1.6682242990654206) internal successors, (1071), 644 states have internal predecessors, (1071), 0 states have call successors, (0), 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 29.5) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:28,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:47:28,570 INFO L93 Difference]: Finished difference Result 1024 states and 1674 transitions. [2022-01-11 05:47:28,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-11 05:47:28,572 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2022-01-11 05:47:28,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:47:28,584 INFO L225 Difference]: With dead ends: 1024 [2022-01-11 05:47:28,584 INFO L226 Difference]: Without dead ends: 532 [2022-01-11 05:47:28,589 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 [2022-01-11 05:47:28,592 INFO L933 BasicCegarLoop]: 1065 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, 1065 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 [2022-01-11 05:47:28,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1065 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:47:28,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2022-01-11 05:47:28,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 532. [2022-01-11 05:47:28,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 530 states have (on average 1.6849056603773584) internal successors, (893), 531 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:28,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 893 transitions. [2022-01-11 05:47:28,654 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 893 transitions. Word has length 59 [2022-01-11 05:47:28,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:47:28,654 INFO L470 AbstractCegarLoop]: Abstraction has 532 states and 893 transitions. [2022-01-11 05:47:28,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:28,655 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 893 transitions. [2022-01-11 05:47:28,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-11 05:47:28,658 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:47:28,658 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:47:28,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 05:47:28,659 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:47:28,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:47:28,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1042015458, now seen corresponding path program 1 times [2022-01-11 05:47:28,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:47:28,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560505545] [2022-01-11 05:47:28,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:47:28,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:47:28,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:47:28,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:47:28,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:47:28,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560505545] [2022-01-11 05:47:28,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560505545] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:47:28,884 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:47:28,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:47:28,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515814102] [2022-01-11 05:47:28,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:47:28,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:47:28,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:47:28,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:47:28,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:47:28,886 INFO L87 Difference]: Start difference. First operand 532 states and 893 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:28,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:47:28,975 INFO L93 Difference]: Finished difference Result 1045 states and 1758 transitions. [2022-01-11 05:47:28,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:47:28,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2022-01-11 05:47:28,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:47:28,979 INFO L225 Difference]: With dead ends: 1045 [2022-01-11 05:47:28,979 INFO L226 Difference]: Without dead ends: 532 [2022-01-11 05:47:28,981 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:47:28,982 INFO L933 BasicCegarLoop]: 873 mSDtfsCounter, 868 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 868 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:47:28,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [868 Valid, 886 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:47:28,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2022-01-11 05:47:29,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 532. [2022-01-11 05:47:29,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 530 states have (on average 1.681132075471698) internal successors, (891), 531 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:29,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 891 transitions. [2022-01-11 05:47:29,022 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 891 transitions. Word has length 60 [2022-01-11 05:47:29,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:47:29,023 INFO L470 AbstractCegarLoop]: Abstraction has 532 states and 891 transitions. [2022-01-11 05:47:29,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:29,023 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 891 transitions. [2022-01-11 05:47:29,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-01-11 05:47:29,025 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:47:29,025 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:47:29,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 05:47:29,025 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:47:29,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:47:29,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1550875806, now seen corresponding path program 1 times [2022-01-11 05:47:29,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:47:29,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631021628] [2022-01-11 05:47:29,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:47:29,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:47:29,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:47:29,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:47:29,143 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:47:29,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631021628] [2022-01-11 05:47:29,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631021628] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:47:29,144 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:47:29,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:47:29,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54058806] [2022-01-11 05:47:29,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:47:29,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:47:29,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:47:29,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:47:29,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:47:29,145 INFO L87 Difference]: Start difference. First operand 532 states and 891 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:29,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:47:29,378 INFO L93 Difference]: Finished difference Result 2528 states and 4251 transitions. [2022-01-11 05:47:29,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-11 05:47:29,379 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2022-01-11 05:47:29,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:47:29,386 INFO L225 Difference]: With dead ends: 2528 [2022-01-11 05:47:29,386 INFO L226 Difference]: Without dead ends: 2020 [2022-01-11 05:47:29,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:47:29,388 INFO L933 BasicCegarLoop]: 1705 mSDtfsCounter, 4238 mSDsluCounter, 2545 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4238 SdHoareTripleChecker+Valid, 4250 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:47:29,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4238 Valid, 4250 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:47:29,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2020 states. [2022-01-11 05:47:29,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2020 to 532. [2022-01-11 05:47:29,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 530 states have (on average 1.679245283018868) internal successors, (890), 531 states have internal predecessors, (890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:29,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 890 transitions. [2022-01-11 05:47:29,417 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 890 transitions. Word has length 62 [2022-01-11 05:47:29,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:47:29,417 INFO L470 AbstractCegarLoop]: Abstraction has 532 states and 890 transitions. [2022-01-11 05:47:29,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:29,417 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 890 transitions. [2022-01-11 05:47:29,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-11 05:47:29,418 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:47:29,418 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:47:29,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 05:47:29,419 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:47:29,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:47:29,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1052262746, now seen corresponding path program 1 times [2022-01-11 05:47:29,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:47:29,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51350267] [2022-01-11 05:47:29,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:47:29,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:47:29,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:47:29,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:47:29,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:47:29,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51350267] [2022-01-11 05:47:29,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51350267] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:47:29,491 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:47:29,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:47:29,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641548128] [2022-01-11 05:47:29,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:47:29,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:47:29,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:47:29,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:47:29,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:47:29,492 INFO L87 Difference]: Start difference. First operand 532 states and 890 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:29,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:47:29,531 INFO L93 Difference]: Finished difference Result 1049 states and 1758 transitions. [2022-01-11 05:47:29,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:47:29,531 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2022-01-11 05:47:29,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:47:29,533 INFO L225 Difference]: With dead ends: 1049 [2022-01-11 05:47:29,534 INFO L226 Difference]: Without dead ends: 546 [2022-01-11 05:47:29,534 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 [2022-01-11 05:47:29,535 INFO L933 BasicCegarLoop]: 904 mSDtfsCounter, 869 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 869 SdHoareTripleChecker+Valid, 926 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:47:29,535 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [869 Valid, 926 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:47:29,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2022-01-11 05:47:29,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 532. [2022-01-11 05:47:29,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 530 states have (on average 1.6773584905660377) internal successors, (889), 531 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:29,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 889 transitions. [2022-01-11 05:47:29,558 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 889 transitions. Word has length 63 [2022-01-11 05:47:29,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:47:29,558 INFO L470 AbstractCegarLoop]: Abstraction has 532 states and 889 transitions. [2022-01-11 05:47:29,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:29,559 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 889 transitions. [2022-01-11 05:47:29,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-11 05:47:29,559 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:47:29,559 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:47:29,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 05:47:29,560 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:47:29,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:47:29,560 INFO L85 PathProgramCache]: Analyzing trace with hash 2067621665, now seen corresponding path program 1 times [2022-01-11 05:47:29,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:47:29,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891193253] [2022-01-11 05:47:29,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:47:29,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:47:29,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:47:29,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:47:29,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:47:29,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891193253] [2022-01-11 05:47:29,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891193253] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:47:29,639 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:47:29,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:47:29,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809214102] [2022-01-11 05:47:29,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:47:29,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:47:29,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:47:29,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:47:29,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:47:29,640 INFO L87 Difference]: Start difference. First operand 532 states and 889 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 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) [2022-01-11 05:47:29,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:47:29,766 INFO L93 Difference]: Finished difference Result 1530 states and 2567 transitions. [2022-01-11 05:47:29,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:47:29,767 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 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 [2022-01-11 05:47:29,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:47:29,770 INFO L225 Difference]: With dead ends: 1530 [2022-01-11 05:47:29,770 INFO L226 Difference]: Without dead ends: 1032 [2022-01-11 05:47:29,771 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:47:29,772 INFO L933 BasicCegarLoop]: 898 mSDtfsCounter, 4161 mSDsluCounter, 912 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4161 SdHoareTripleChecker+Valid, 1810 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:47:29,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4161 Valid, 1810 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:47:29,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1032 states. [2022-01-11 05:47:29,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1032 to 532. [2022-01-11 05:47:29,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 530 states have (on average 1.6735849056603773) internal successors, (887), 531 states have internal predecessors, (887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:29,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 887 transitions. [2022-01-11 05:47:29,850 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 887 transitions. Word has length 64 [2022-01-11 05:47:29,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:47:29,851 INFO L470 AbstractCegarLoop]: Abstraction has 532 states and 887 transitions. [2022-01-11 05:47:29,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 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) [2022-01-11 05:47:29,851 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 887 transitions. [2022-01-11 05:47:29,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-11 05:47:29,851 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:47:29,852 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:47:29,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 05:47:29,852 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:47:29,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:47:29,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1429237596, now seen corresponding path program 1 times [2022-01-11 05:47:29,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:47:29,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604110223] [2022-01-11 05:47:29,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:47:29,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:47:29,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:47:29,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:47:29,989 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:47:29,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604110223] [2022-01-11 05:47:29,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604110223] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:47:29,990 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:47:29,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 05:47:29,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314038752] [2022-01-11 05:47:29,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:47:29,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:47:29,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:47:29,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:47:29,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:47:29,992 INFO L87 Difference]: Start difference. First operand 532 states and 887 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:30,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:47:30,411 INFO L93 Difference]: Finished difference Result 3435 states and 5621 transitions. [2022-01-11 05:47:30,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-11 05:47:30,412 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2022-01-11 05:47:30,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:47:30,421 INFO L225 Difference]: With dead ends: 3435 [2022-01-11 05:47:30,422 INFO L226 Difference]: Without dead ends: 3186 [2022-01-11 05:47:30,423 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-01-11 05:47:30,426 INFO L933 BasicCegarLoop]: 1347 mSDtfsCounter, 5915 mSDsluCounter, 5281 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5915 SdHoareTripleChecker+Valid, 6628 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:47:30,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5915 Valid, 6628 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:47:30,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3186 states. [2022-01-11 05:47:30,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3186 to 978. [2022-01-11 05:47:30,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 978 states, 976 states have (on average 1.6752049180327868) internal successors, (1635), 977 states have internal predecessors, (1635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:30,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 1635 transitions. [2022-01-11 05:47:30,510 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 1635 transitions. Word has length 66 [2022-01-11 05:47:30,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:47:30,511 INFO L470 AbstractCegarLoop]: Abstraction has 978 states and 1635 transitions. [2022-01-11 05:47:30,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:30,512 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 1635 transitions. [2022-01-11 05:47:30,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-11 05:47:30,513 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:47:30,513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:47:30,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 05:47:30,513 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:47:30,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:47:30,514 INFO L85 PathProgramCache]: Analyzing trace with hash 586741963, now seen corresponding path program 1 times [2022-01-11 05:47:30,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:47:30,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595736489] [2022-01-11 05:47:30,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:47:30,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:47:30,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:47:30,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:47:30,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:47:30,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595736489] [2022-01-11 05:47:30,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595736489] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:47:30,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:47:30,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:47:30,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456678147] [2022-01-11 05:47:30,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:47:30,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:47:30,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:47:30,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:47:30,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:47:30,641 INFO L87 Difference]: Start difference. First operand 978 states and 1635 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:30,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:47:30,773 INFO L93 Difference]: Finished difference Result 1763 states and 2877 transitions. [2022-01-11 05:47:30,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:47:30,774 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2022-01-11 05:47:30,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:47:30,778 INFO L225 Difference]: With dead ends: 1763 [2022-01-11 05:47:30,778 INFO L226 Difference]: Without dead ends: 1323 [2022-01-11 05:47:30,779 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:47:30,779 INFO L933 BasicCegarLoop]: 873 mSDtfsCounter, 2325 mSDsluCounter, 1236 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2325 SdHoareTripleChecker+Valid, 2109 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:47:30,779 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2325 Valid, 2109 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:47:30,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1323 states. [2022-01-11 05:47:30,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1323 to 978. [2022-01-11 05:47:30,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 978 states, 976 states have (on average 1.6711065573770492) internal successors, (1631), 977 states have internal predecessors, (1631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:30,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 1631 transitions. [2022-01-11 05:47:30,833 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 1631 transitions. Word has length 67 [2022-01-11 05:47:30,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:47:30,833 INFO L470 AbstractCegarLoop]: Abstraction has 978 states and 1631 transitions. [2022-01-11 05:47:30,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:30,834 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 1631 transitions. [2022-01-11 05:47:30,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-11 05:47:30,835 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:47:30,835 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:47:30,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 05:47:30,835 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:47:30,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:47:30,835 INFO L85 PathProgramCache]: Analyzing trace with hash -589963040, now seen corresponding path program 1 times [2022-01-11 05:47:30,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:47:30,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58920061] [2022-01-11 05:47:30,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:47:30,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:47:30,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:47:30,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:47:30,915 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:47:30,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58920061] [2022-01-11 05:47:30,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58920061] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:47:30,915 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:47:30,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:47:30,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406426972] [2022-01-11 05:47:30,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:47:30,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:47:30,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:47:30,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:47:30,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:47:30,916 INFO L87 Difference]: Start difference. First operand 978 states and 1631 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:31,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:47:31,085 INFO L93 Difference]: Finished difference Result 2811 states and 4722 transitions. [2022-01-11 05:47:31,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:47:31,086 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2022-01-11 05:47:31,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:47:31,092 INFO L225 Difference]: With dead ends: 2811 [2022-01-11 05:47:31,093 INFO L226 Difference]: Without dead ends: 1870 [2022-01-11 05:47:31,096 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:47:31,097 INFO L933 BasicCegarLoop]: 1673 mSDtfsCounter, 2592 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2592 SdHoareTripleChecker+Valid, 2511 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:47:31,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2592 Valid, 2511 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:47:31,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1870 states. [2022-01-11 05:47:31,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1870 to 978. [2022-01-11 05:47:31,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 978 states, 976 states have (on average 1.6690573770491803) internal successors, (1629), 977 states have internal predecessors, (1629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:31,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 1629 transitions. [2022-01-11 05:47:31,165 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 1629 transitions. Word has length 67 [2022-01-11 05:47:31,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:47:31,165 INFO L470 AbstractCegarLoop]: Abstraction has 978 states and 1629 transitions. [2022-01-11 05:47:31,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:31,165 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 1629 transitions. [2022-01-11 05:47:31,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-01-11 05:47:31,170 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:47:31,170 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:47:31,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 05:47:31,170 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:47:31,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:47:31,170 INFO L85 PathProgramCache]: Analyzing trace with hash 710010008, now seen corresponding path program 1 times [2022-01-11 05:47:31,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:47:31,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315459291] [2022-01-11 05:47:31,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:47:31,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:47:31,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:47:31,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:47:31,292 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:47:31,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315459291] [2022-01-11 05:47:31,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315459291] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:47:31,293 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:47:31,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:47:31,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872955086] [2022-01-11 05:47:31,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:47:31,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-11 05:47:31,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:47:31,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-11 05:47:31,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:47:31,295 INFO L87 Difference]: Start difference. First operand 978 states and 1629 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:32,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:47:32,159 INFO L93 Difference]: Finished difference Result 4538 states and 7224 transitions. [2022-01-11 05:47:32,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-11 05:47:32,159 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2022-01-11 05:47:32,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:47:32,171 INFO L225 Difference]: With dead ends: 4538 [2022-01-11 05:47:32,171 INFO L226 Difference]: Without dead ends: 4140 [2022-01-11 05:47:32,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=153, Invalid=309, Unknown=0, NotChecked=0, Total=462 [2022-01-11 05:47:32,176 INFO L933 BasicCegarLoop]: 1118 mSDtfsCounter, 7092 mSDsluCounter, 7304 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7092 SdHoareTripleChecker+Valid, 8422 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:47:32,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7092 Valid, 8422 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 05:47:32,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4140 states. [2022-01-11 05:47:32,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4140 to 1839. [2022-01-11 05:47:32,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1839 states, 1837 states have (on average 1.6804572672836147) internal successors, (3087), 1838 states have internal predecessors, (3087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:32,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1839 states to 1839 states and 3087 transitions. [2022-01-11 05:47:32,327 INFO L78 Accepts]: Start accepts. Automaton has 1839 states and 3087 transitions. Word has length 68 [2022-01-11 05:47:32,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:47:32,327 INFO L470 AbstractCegarLoop]: Abstraction has 1839 states and 3087 transitions. [2022-01-11 05:47:32,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:32,328 INFO L276 IsEmpty]: Start isEmpty. Operand 1839 states and 3087 transitions. [2022-01-11 05:47:32,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-01-11 05:47:32,330 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:47:32,330 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:47:32,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 05:47:32,330 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:47:32,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:47:32,330 INFO L85 PathProgramCache]: Analyzing trace with hash -728910558, now seen corresponding path program 1 times [2022-01-11 05:47:32,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:47:32,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85590237] [2022-01-11 05:47:32,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:47:32,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:47:32,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:47:32,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:47:32,455 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:47:32,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85590237] [2022-01-11 05:47:32,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85590237] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:47:32,456 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:47:32,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:47:32,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839625345] [2022-01-11 05:47:32,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:47:32,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-11 05:47:32,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:47:32,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-11 05:47:32,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:47:32,457 INFO L87 Difference]: Start difference. First operand 1839 states and 3087 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:33,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:47:33,556 INFO L93 Difference]: Finished difference Result 7658 states and 12266 transitions. [2022-01-11 05:47:33,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-11 05:47:33,557 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2022-01-11 05:47:33,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:47:33,577 INFO L225 Difference]: With dead ends: 7658 [2022-01-11 05:47:33,577 INFO L226 Difference]: Without dead ends: 6923 [2022-01-11 05:47:33,580 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=153, Invalid=309, Unknown=0, NotChecked=0, Total=462 [2022-01-11 05:47:33,581 INFO L933 BasicCegarLoop]: 978 mSDtfsCounter, 7082 mSDsluCounter, 6595 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7082 SdHoareTripleChecker+Valid, 7573 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:47:33,581 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7082 Valid, 7573 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 05:47:33,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6923 states. [2022-01-11 05:47:33,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6923 to 3566. [2022-01-11 05:47:33,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3566 states, 3564 states have (on average 1.6865881032547698) internal successors, (6011), 3565 states have internal predecessors, (6011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:33,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3566 states to 3566 states and 6011 transitions. [2022-01-11 05:47:33,866 INFO L78 Accepts]: Start accepts. Automaton has 3566 states and 6011 transitions. Word has length 69 [2022-01-11 05:47:33,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:47:33,867 INFO L470 AbstractCegarLoop]: Abstraction has 3566 states and 6011 transitions. [2022-01-11 05:47:33,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:33,867 INFO L276 IsEmpty]: Start isEmpty. Operand 3566 states and 6011 transitions. [2022-01-11 05:47:33,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-01-11 05:47:33,870 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:47:33,870 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:47:33,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 05:47:33,871 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:47:33,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:47:33,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1137734783, now seen corresponding path program 1 times [2022-01-11 05:47:33,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:47:33,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661602918] [2022-01-11 05:47:33,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:47:33,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:47:33,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:47:33,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:47:33,967 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:47:33,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661602918] [2022-01-11 05:47:33,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661602918] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:47:33,967 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:47:33,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 05:47:33,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520535971] [2022-01-11 05:47:33,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:47:33,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:47:33,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:47:33,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:47:33,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:47:33,969 INFO L87 Difference]: Start difference. First operand 3566 states and 6011 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:34,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:47:34,941 INFO L93 Difference]: Finished difference Result 9758 states and 16209 transitions. [2022-01-11 05:47:34,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-11 05:47:34,942 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2022-01-11 05:47:34,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:47:34,963 INFO L225 Difference]: With dead ends: 9758 [2022-01-11 05:47:34,963 INFO L226 Difference]: Without dead ends: 9152 [2022-01-11 05:47:34,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-01-11 05:47:34,967 INFO L933 BasicCegarLoop]: 1601 mSDtfsCounter, 4628 mSDsluCounter, 5462 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4628 SdHoareTripleChecker+Valid, 7063 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:47:34,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4628 Valid, 7063 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:47:34,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9152 states. [2022-01-11 05:47:35,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9152 to 3665. [2022-01-11 05:47:35,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3665 states, 3663 states have (on average 1.684138684138684) internal successors, (6169), 3664 states have internal predecessors, (6169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:35,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3665 states to 3665 states and 6169 transitions. [2022-01-11 05:47:35,302 INFO L78 Accepts]: Start accepts. Automaton has 3665 states and 6169 transitions. Word has length 69 [2022-01-11 05:47:35,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:47:35,302 INFO L470 AbstractCegarLoop]: Abstraction has 3665 states and 6169 transitions. [2022-01-11 05:47:35,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:35,302 INFO L276 IsEmpty]: Start isEmpty. Operand 3665 states and 6169 transitions. [2022-01-11 05:47:35,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-01-11 05:47:35,306 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:47:35,306 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:47:35,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 05:47:35,306 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:47:35,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:47:35,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1469228529, now seen corresponding path program 1 times [2022-01-11 05:47:35,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:47:35,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37070681] [2022-01-11 05:47:35,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:47:35,307 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:47:35,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:47:35,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:47:35,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:47:35,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37070681] [2022-01-11 05:47:35,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37070681] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:47:35,420 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:47:35,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:47:35,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168523725] [2022-01-11 05:47:35,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:47:35,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:47:35,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:47:35,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:47:35,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:47:35,421 INFO L87 Difference]: Start difference. First operand 3665 states and 6169 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:36,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:47:36,865 INFO L93 Difference]: Finished difference Result 10671 states and 16982 transitions. [2022-01-11 05:47:36,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-11 05:47:36,865 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2022-01-11 05:47:36,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:47:36,883 INFO L225 Difference]: With dead ends: 10671 [2022-01-11 05:47:36,883 INFO L226 Difference]: Without dead ends: 9346 [2022-01-11 05:47:36,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=148, Invalid=314, Unknown=0, NotChecked=0, Total=462 [2022-01-11 05:47:36,887 INFO L933 BasicCegarLoop]: 1476 mSDtfsCounter, 4535 mSDsluCounter, 5839 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4535 SdHoareTripleChecker+Valid, 7315 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:47:36,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4535 Valid, 7315 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 05:47:36,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9346 states. [2022-01-11 05:47:37,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9346 to 4141. [2022-01-11 05:47:37,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4141 states, 4139 states have (on average 1.672143029717323) internal successors, (6921), 4140 states have internal predecessors, (6921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:37,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4141 states to 4141 states and 6921 transitions. [2022-01-11 05:47:37,269 INFO L78 Accepts]: Start accepts. Automaton has 4141 states and 6921 transitions. Word has length 69 [2022-01-11 05:47:37,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:47:37,270 INFO L470 AbstractCegarLoop]: Abstraction has 4141 states and 6921 transitions. [2022-01-11 05:47:37,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:37,270 INFO L276 IsEmpty]: Start isEmpty. Operand 4141 states and 6921 transitions. [2022-01-11 05:47:37,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-01-11 05:47:37,273 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:47:37,273 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:47:37,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 05:47:37,274 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:47:37,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:47:37,274 INFO L85 PathProgramCache]: Analyzing trace with hash -488748039, now seen corresponding path program 1 times [2022-01-11 05:47:37,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:47:37,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372949224] [2022-01-11 05:47:37,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:47:37,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:47:37,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:47:37,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:47:37,334 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:47:37,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372949224] [2022-01-11 05:47:37,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372949224] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:47:37,334 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:47:37,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:47:37,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748393099] [2022-01-11 05:47:37,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:47:37,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:47:37,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:47:37,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:47:37,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:47:37,335 INFO L87 Difference]: Start difference. First operand 4141 states and 6921 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:37,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:47:37,778 INFO L93 Difference]: Finished difference Result 5213 states and 8570 transitions. [2022-01-11 05:47:37,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:47:37,779 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2022-01-11 05:47:37,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:47:37,786 INFO L225 Difference]: With dead ends: 5213 [2022-01-11 05:47:37,786 INFO L226 Difference]: Without dead ends: 4714 [2022-01-11 05:47:37,787 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:47:37,788 INFO L933 BasicCegarLoop]: 877 mSDtfsCounter, 1040 mSDsluCounter, 1119 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1040 SdHoareTripleChecker+Valid, 1996 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:47:37,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1040 Valid, 1996 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:47:37,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4714 states. [2022-01-11 05:47:38,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4714 to 4141. [2022-01-11 05:47:38,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4141 states, 4139 states have (on average 1.6716598212128533) internal successors, (6919), 4140 states have internal predecessors, (6919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:38,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4141 states to 4141 states and 6919 transitions. [2022-01-11 05:47:38,129 INFO L78 Accepts]: Start accepts. Automaton has 4141 states and 6919 transitions. Word has length 69 [2022-01-11 05:47:38,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:47:38,129 INFO L470 AbstractCegarLoop]: Abstraction has 4141 states and 6919 transitions. [2022-01-11 05:47:38,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:38,130 INFO L276 IsEmpty]: Start isEmpty. Operand 4141 states and 6919 transitions. [2022-01-11 05:47:38,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-01-11 05:47:38,133 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:47:38,133 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:47:38,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 05:47:38,133 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:47:38,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:47:38,134 INFO L85 PathProgramCache]: Analyzing trace with hash -477431912, now seen corresponding path program 1 times [2022-01-11 05:47:38,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:47:38,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008024842] [2022-01-11 05:47:38,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:47:38,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:47:38,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:47:38,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:47:38,203 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:47:38,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008024842] [2022-01-11 05:47:38,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008024842] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:47:38,204 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:47:38,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:47:38,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657400050] [2022-01-11 05:47:38,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:47:38,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:47:38,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:47:38,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:47:38,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:47:38,205 INFO L87 Difference]: Start difference. First operand 4141 states and 6919 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:39,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:47:39,380 INFO L93 Difference]: Finished difference Result 9217 states and 14675 transitions. [2022-01-11 05:47:39,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:47:39,380 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2022-01-11 05:47:39,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:47:39,393 INFO L225 Difference]: With dead ends: 9217 [2022-01-11 05:47:39,393 INFO L226 Difference]: Without dead ends: 7522 [2022-01-11 05:47:39,396 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 [2022-01-11 05:47:39,396 INFO L933 BasicCegarLoop]: 1622 mSDtfsCounter, 2079 mSDsluCounter, 3448 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2079 SdHoareTripleChecker+Valid, 5070 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:47:39,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2079 Valid, 5070 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:47:39,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7522 states. [2022-01-11 05:47:39,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7522 to 4389. [2022-01-11 05:47:39,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4389 states, 4387 states have (on average 1.6587645315705493) internal successors, (7277), 4388 states have internal predecessors, (7277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:39,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4389 states to 4389 states and 7277 transitions. [2022-01-11 05:47:39,782 INFO L78 Accepts]: Start accepts. Automaton has 4389 states and 7277 transitions. Word has length 69 [2022-01-11 05:47:39,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:47:39,783 INFO L470 AbstractCegarLoop]: Abstraction has 4389 states and 7277 transitions. [2022-01-11 05:47:39,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:39,783 INFO L276 IsEmpty]: Start isEmpty. Operand 4389 states and 7277 transitions. [2022-01-11 05:47:39,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-01-11 05:47:39,786 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:47:39,786 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:47:39,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 05:47:39,786 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:47:39,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:47:39,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1789580781, now seen corresponding path program 1 times [2022-01-11 05:47:39,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:47:39,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22751856] [2022-01-11 05:47:39,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:47:39,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:47:39,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:47:39,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:47:39,862 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:47:39,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22751856] [2022-01-11 05:47:39,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22751856] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:47:39,862 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:47:39,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 05:47:39,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026252114] [2022-01-11 05:47:39,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:47:39,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:47:39,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:47:39,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:47:39,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:47:39,863 INFO L87 Difference]: Start difference. First operand 4389 states and 7277 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:42,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:47:42,323 INFO L93 Difference]: Finished difference Result 23855 states and 39129 transitions. [2022-01-11 05:47:42,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-11 05:47:42,324 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2022-01-11 05:47:42,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:47:42,362 INFO L225 Difference]: With dead ends: 23855 [2022-01-11 05:47:42,362 INFO L226 Difference]: Without dead ends: 22152 [2022-01-11 05:47:42,371 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-01-11 05:47:42,372 INFO L933 BasicCegarLoop]: 1296 mSDtfsCounter, 4654 mSDsluCounter, 3971 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4654 SdHoareTripleChecker+Valid, 5267 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:47:42,372 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4654 Valid, 5267 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:47:42,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22152 states. [2022-01-11 05:47:43,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22152 to 8716. [2022-01-11 05:47:43,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8716 states, 8714 states have (on average 1.6599724581133808) internal successors, (14465), 8715 states have internal predecessors, (14465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:43,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8716 states to 8716 states and 14465 transitions. [2022-01-11 05:47:43,291 INFO L78 Accepts]: Start accepts. Automaton has 8716 states and 14465 transitions. Word has length 70 [2022-01-11 05:47:43,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:47:43,291 INFO L470 AbstractCegarLoop]: Abstraction has 8716 states and 14465 transitions. [2022-01-11 05:47:43,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:43,292 INFO L276 IsEmpty]: Start isEmpty. Operand 8716 states and 14465 transitions. [2022-01-11 05:47:43,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-01-11 05:47:43,298 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:47:43,298 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:47:43,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 05:47:43,298 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:47:43,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:47:43,298 INFO L85 PathProgramCache]: Analyzing trace with hash 84405914, now seen corresponding path program 1 times [2022-01-11 05:47:43,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:47:43,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25180855] [2022-01-11 05:47:43,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:47:43,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:47:43,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:47:43,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:47:43,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:47:43,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25180855] [2022-01-11 05:47:43,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25180855] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:47:43,408 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:47:43,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:47:43,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365180099] [2022-01-11 05:47:43,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:47:43,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:47:43,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:47:43,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:47:43,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:47:43,409 INFO L87 Difference]: Start difference. First operand 8716 states and 14465 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:44,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:47:44,752 INFO L93 Difference]: Finished difference Result 14814 states and 23898 transitions. [2022-01-11 05:47:44,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-11 05:47:44,752 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2022-01-11 05:47:44,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:47:44,769 INFO L225 Difference]: With dead ends: 14814 [2022-01-11 05:47:44,769 INFO L226 Difference]: Without dead ends: 10284 [2022-01-11 05:47:44,775 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=102, Invalid=204, Unknown=0, NotChecked=0, Total=306 [2022-01-11 05:47:44,776 INFO L933 BasicCegarLoop]: 909 mSDtfsCounter, 2540 mSDsluCounter, 3441 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2540 SdHoareTripleChecker+Valid, 4350 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:47:44,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2540 Valid, 4350 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:47:44,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10284 states. [2022-01-11 05:47:45,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10284 to 8654. [2022-01-11 05:47:45,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8654 states, 8652 states have (on average 1.6568423485899213) internal successors, (14335), 8653 states have internal predecessors, (14335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:45,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8654 states to 8654 states and 14335 transitions. [2022-01-11 05:47:45,733 INFO L78 Accepts]: Start accepts. Automaton has 8654 states and 14335 transitions. Word has length 70 [2022-01-11 05:47:45,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:47:45,734 INFO L470 AbstractCegarLoop]: Abstraction has 8654 states and 14335 transitions. [2022-01-11 05:47:45,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:45,734 INFO L276 IsEmpty]: Start isEmpty. Operand 8654 states and 14335 transitions. [2022-01-11 05:47:45,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-01-11 05:47:45,740 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:47:45,740 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:47:45,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-11 05:47:45,740 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:47:45,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:47:45,741 INFO L85 PathProgramCache]: Analyzing trace with hash 573428504, now seen corresponding path program 1 times [2022-01-11 05:47:45,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:47:45,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205489594] [2022-01-11 05:47:45,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:47:45,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:47:45,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:47:45,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:47:45,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:47:45,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205489594] [2022-01-11 05:47:45,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205489594] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:47:45,827 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:47:45,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:47:45,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272643233] [2022-01-11 05:47:45,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:47:45,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:47:45,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:47:45,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:47:45,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:47:45,828 INFO L87 Difference]: Start difference. First operand 8654 states and 14335 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 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) [2022-01-11 05:47:48,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:47:48,251 INFO L93 Difference]: Finished difference Result 17357 states and 27973 transitions. [2022-01-11 05:47:48,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-11 05:47:48,252 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 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 [2022-01-11 05:47:48,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:47:48,276 INFO L225 Difference]: With dead ends: 17357 [2022-01-11 05:47:48,277 INFO L226 Difference]: Without dead ends: 14325 [2022-01-11 05:47:48,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=139, Invalid=281, Unknown=0, NotChecked=0, Total=420 [2022-01-11 05:47:48,285 INFO L933 BasicCegarLoop]: 1003 mSDtfsCounter, 5655 mSDsluCounter, 3127 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5655 SdHoareTripleChecker+Valid, 4130 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:47:48,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5655 Valid, 4130 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 05:47:48,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14325 states. [2022-01-11 05:47:49,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14325 to 8640. [2022-01-11 05:47:49,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8640 states, 8638 states have (on average 1.6562861773558695) internal successors, (14307), 8639 states have internal predecessors, (14307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:49,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8640 states to 8640 states and 14307 transitions. [2022-01-11 05:47:49,361 INFO L78 Accepts]: Start accepts. Automaton has 8640 states and 14307 transitions. Word has length 71 [2022-01-11 05:47:49,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:47:49,362 INFO L470 AbstractCegarLoop]: Abstraction has 8640 states and 14307 transitions. [2022-01-11 05:47:49,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 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) [2022-01-11 05:47:49,362 INFO L276 IsEmpty]: Start isEmpty. Operand 8640 states and 14307 transitions. [2022-01-11 05:47:49,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-01-11 05:47:49,368 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:47:49,368 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:47:49,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-11 05:47:49,369 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:47:49,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:47:49,369 INFO L85 PathProgramCache]: Analyzing trace with hash 376914999, now seen corresponding path program 1 times [2022-01-11 05:47:49,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:47:49,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332869377] [2022-01-11 05:47:49,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:47:49,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:47:49,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:47:49,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:47:49,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:47:49,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332869377] [2022-01-11 05:47:49,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332869377] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:47:49,479 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:47:49,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:47:49,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403471223] [2022-01-11 05:47:49,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:47:49,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:47:49,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:47:49,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:47:49,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:47:49,480 INFO L87 Difference]: Start difference. First operand 8640 states and 14307 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 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) [2022-01-11 05:47:54,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:47:54,490 INFO L93 Difference]: Finished difference Result 31988 states and 50267 transitions. [2022-01-11 05:47:54,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:47:54,491 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 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 [2022-01-11 05:47:54,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:47:54,543 INFO L225 Difference]: With dead ends: 31988 [2022-01-11 05:47:54,543 INFO L226 Difference]: Without dead ends: 28738 [2022-01-11 05:47:54,554 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 [2022-01-11 05:47:54,554 INFO L933 BasicCegarLoop]: 875 mSDtfsCounter, 2846 mSDsluCounter, 2980 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2846 SdHoareTripleChecker+Valid, 3855 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:47:54,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2846 Valid, 3855 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:47:54,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28738 states. [2022-01-11 05:47:56,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28738 to 13002. [2022-01-11 05:47:56,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13002 states, 13000 states have (on average 1.6104615384615384) internal successors, (20936), 13001 states have internal predecessors, (20936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:56,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13002 states to 13002 states and 20936 transitions. [2022-01-11 05:47:56,635 INFO L78 Accepts]: Start accepts. Automaton has 13002 states and 20936 transitions. Word has length 71 [2022-01-11 05:47:56,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:47:56,636 INFO L470 AbstractCegarLoop]: Abstraction has 13002 states and 20936 transitions. [2022-01-11 05:47:56,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 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) [2022-01-11 05:47:56,636 INFO L276 IsEmpty]: Start isEmpty. Operand 13002 states and 20936 transitions. [2022-01-11 05:47:56,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-01-11 05:47:56,643 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:47:56,643 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:47:56,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-11 05:47:56,643 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:47:56,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:47:56,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1199585287, now seen corresponding path program 1 times [2022-01-11 05:47:56,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:47:56,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502655163] [2022-01-11 05:47:56,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:47:56,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:47:56,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:47:56,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:47:56,715 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:47:56,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502655163] [2022-01-11 05:47:56,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502655163] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:47:56,715 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:47:56,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:47:56,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070208714] [2022-01-11 05:47:56,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:47:56,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:47:56,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:47:56,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:47:56,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:47:56,716 INFO L87 Difference]: Start difference. First operand 13002 states and 20936 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:48:01,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:48:01,036 INFO L93 Difference]: Finished difference Result 25503 states and 40374 transitions. [2022-01-11 05:48:01,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-11 05:48:01,037 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2022-01-11 05:48:01,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:48:01,073 INFO L225 Difference]: With dead ends: 25503 [2022-01-11 05:48:01,074 INFO L226 Difference]: Without dead ends: 25492 [2022-01-11 05:48:01,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:48:01,081 INFO L933 BasicCegarLoop]: 869 mSDtfsCounter, 1650 mSDsluCounter, 2320 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1650 SdHoareTripleChecker+Valid, 3189 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:48:01,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1650 Valid, 3189 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:48:01,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25492 states. [2022-01-11 05:48:03,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25492 to 13079. [2022-01-11 05:48:03,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13079 states, 13077 states have (on average 1.6066376080140705) internal successors, (21010), 13078 states have internal predecessors, (21010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:48:03,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13079 states to 13079 states and 21010 transitions. [2022-01-11 05:48:03,092 INFO L78 Accepts]: Start accepts. Automaton has 13079 states and 21010 transitions. Word has length 72 [2022-01-11 05:48:03,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:48:03,092 INFO L470 AbstractCegarLoop]: Abstraction has 13079 states and 21010 transitions. [2022-01-11 05:48:03,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:48:03,092 INFO L276 IsEmpty]: Start isEmpty. Operand 13079 states and 21010 transitions. [2022-01-11 05:48:03,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-01-11 05:48:03,098 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:48:03,098 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:48:03,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-11 05:48:03,098 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:48:03,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:48:03,099 INFO L85 PathProgramCache]: Analyzing trace with hash -289172327, now seen corresponding path program 1 times [2022-01-11 05:48:03,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:48:03,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809470619] [2022-01-11 05:48:03,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:48:03,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:48:03,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:48:03,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:48:03,202 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:48:03,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809470619] [2022-01-11 05:48:03,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809470619] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:48:03,202 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:48:03,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-11 05:48:03,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267700066] [2022-01-11 05:48:03,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:48:03,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-11 05:48:03,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:48:03,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-11 05:48:03,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-11 05:48:03,203 INFO L87 Difference]: Start difference. First operand 13079 states and 21010 transitions. Second operand has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:48:06,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:48:06,742 INFO L93 Difference]: Finished difference Result 26792 states and 42081 transitions. [2022-01-11 05:48:06,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-11 05:48:06,742 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2022-01-11 05:48:06,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:48:06,766 INFO L225 Difference]: With dead ends: 26792 [2022-01-11 05:48:06,766 INFO L226 Difference]: Without dead ends: 19127 [2022-01-11 05:48:06,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=196, Invalid=454, Unknown=0, NotChecked=0, Total=650 [2022-01-11 05:48:06,774 INFO L933 BasicCegarLoop]: 859 mSDtfsCounter, 4053 mSDsluCounter, 4618 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4053 SdHoareTripleChecker+Valid, 5477 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:48:06,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4053 Valid, 5477 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:48:06,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19127 states. [2022-01-11 05:48:08,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19127 to 12999. [2022-01-11 05:48:08,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12999 states, 12997 states have (on average 1.6011387243209971) internal successors, (20810), 12998 states have internal predecessors, (20810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:48:08,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12999 states to 12999 states and 20810 transitions. [2022-01-11 05:48:08,812 INFO L78 Accepts]: Start accepts. Automaton has 12999 states and 20810 transitions. Word has length 72 [2022-01-11 05:48:08,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:48:08,812 INFO L470 AbstractCegarLoop]: Abstraction has 12999 states and 20810 transitions. [2022-01-11 05:48:08,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:48:08,812 INFO L276 IsEmpty]: Start isEmpty. Operand 12999 states and 20810 transitions. [2022-01-11 05:48:08,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-11 05:48:08,819 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:48:08,819 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:48:08,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-11 05:48:08,819 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:48:08,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:48:08,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1249324329, now seen corresponding path program 1 times [2022-01-11 05:48:08,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:48:08,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104964139] [2022-01-11 05:48:08,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:48:08,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:48:08,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:48:08,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:48:08,887 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:48:08,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104964139] [2022-01-11 05:48:08,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104964139] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:48:08,887 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:48:08,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:48:08,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454261165] [2022-01-11 05:48:08,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:48:08,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:48:08,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:48:08,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:48:08,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:48:08,888 INFO L87 Difference]: Start difference. First operand 12999 states and 20810 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:48:15,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:48:15,454 INFO L93 Difference]: Finished difference Result 40430 states and 61982 transitions. [2022-01-11 05:48:15,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:48:15,454 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2022-01-11 05:48:15,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:48:15,500 INFO L225 Difference]: With dead ends: 40430 [2022-01-11 05:48:15,500 INFO L226 Difference]: Without dead ends: 31857 [2022-01-11 05:48:15,512 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:48:15,513 INFO L933 BasicCegarLoop]: 958 mSDtfsCounter, 985 mSDsluCounter, 1849 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 985 SdHoareTripleChecker+Valid, 2807 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:48:15,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [985 Valid, 2807 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:48:15,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31857 states. [2022-01-11 05:48:17,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31857 to 13087. [2022-01-11 05:48:17,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13087 states, 13085 states have (on average 1.5970959113488727) internal successors, (20898), 13086 states have internal predecessors, (20898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:48:17,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13087 states to 13087 states and 20898 transitions. [2022-01-11 05:48:17,731 INFO L78 Accepts]: Start accepts. Automaton has 13087 states and 20898 transitions. Word has length 75 [2022-01-11 05:48:17,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:48:17,731 INFO L470 AbstractCegarLoop]: Abstraction has 13087 states and 20898 transitions. [2022-01-11 05:48:17,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:48:17,732 INFO L276 IsEmpty]: Start isEmpty. Operand 13087 states and 20898 transitions. [2022-01-11 05:48:17,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-11 05:48:17,738 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:48:17,738 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:48:17,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-11 05:48:17,738 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:48:17,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:48:17,738 INFO L85 PathProgramCache]: Analyzing trace with hash -511427050, now seen corresponding path program 1 times [2022-01-11 05:48:17,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:48:17,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421489297] [2022-01-11 05:48:17,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:48:17,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:48:17,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:48:17,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:48:17,820 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:48:17,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421489297] [2022-01-11 05:48:17,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421489297] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:48:17,820 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:48:17,820 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:48:17,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936159459] [2022-01-11 05:48:17,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:48:17,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-11 05:48:17,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:48:17,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-11 05:48:17,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:48:17,821 INFO L87 Difference]: Start difference. First operand 13087 states and 20898 transitions. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:48:28,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:48:28,569 INFO L93 Difference]: Finished difference Result 55012 states and 84569 transitions. [2022-01-11 05:48:28,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-11 05:48:28,571 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2022-01-11 05:48:28,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:48:28,645 INFO L225 Difference]: With dead ends: 55012 [2022-01-11 05:48:28,645 INFO L226 Difference]: Without dead ends: 47995 [2022-01-11 05:48:28,661 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=153, Invalid=309, Unknown=0, NotChecked=0, Total=462 [2022-01-11 05:48:28,662 INFO L933 BasicCegarLoop]: 1034 mSDtfsCounter, 8147 mSDsluCounter, 5807 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8147 SdHoareTripleChecker+Valid, 6841 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:48:28,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8147 Valid, 6841 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 05:48:28,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47995 states.