/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_spec4_product25.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 05:44:25,126 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 05:44:25,127 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 05:44:25,192 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 05:44:25,192 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 05:44:25,193 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 05:44:25,194 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 05:44:25,195 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 05:44:25,196 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 05:44:25,196 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 05:44:25,197 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 05:44:25,197 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 05:44:25,197 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 05:44:25,198 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 05:44:25,212 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 05:44:25,212 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 05:44:25,213 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 05:44:25,214 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 05:44:25,214 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 05:44:25,216 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 05:44:25,216 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 05:44:25,217 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 05:44:25,218 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 05:44:25,218 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 05:44:25,220 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 05:44:25,220 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 05:44:25,220 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 05:44:25,221 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 05:44:25,221 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 05:44:25,222 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 05:44:25,222 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 05:44:25,222 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 05:44:25,223 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 05:44:25,223 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 05:44:25,224 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 05:44:25,224 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 05:44:25,224 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 05:44:25,224 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 05:44:25,224 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 05:44:25,227 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 05:44:25,227 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 05:44:25,229 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 05:44:25,258 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 05:44:25,258 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 05:44:25,258 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 05:44:25,258 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 05:44:25,259 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 05:44:25,259 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 05:44:25,259 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 05:44:25,259 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 05:44:25,260 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 05:44:25,260 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 05:44:25,260 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 05:44:25,260 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 05:44:25,260 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 05:44:25,260 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 05:44:25,260 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 05:44:25,260 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 05:44:25,260 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 05:44:25,260 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 05:44:25,261 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 05:44:25,261 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 05:44:25,261 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 05:44:25,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:44:25,261 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 05:44:25,261 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 05:44:25,261 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 05:44:25,261 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 05:44:25,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 05:44:25,261 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 05:44:25,262 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 05:44:25,268 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 05:44:25,268 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 05:44:25,268 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 05:44:25,269 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 05:44:25,269 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 05:44:25,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 05:44:25,454 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 05:44:25,457 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 05:44:25,458 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 05:44:25,458 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 05:44:25,459 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product25.cil.c [2022-01-11 05:44:25,503 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bed7cf521/39c62ed513dc4b27b85b89bfe8d9b9f7/FLAGfda4b35b1 [2022-01-11 05:44:25,987 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 05:44:25,987 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product25.cil.c [2022-01-11 05:44:26,007 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bed7cf521/39c62ed513dc4b27b85b89bfe8d9b9f7/FLAGfda4b35b1 [2022-01-11 05:44:26,481 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bed7cf521/39c62ed513dc4b27b85b89bfe8d9b9f7 [2022-01-11 05:44:26,483 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 05:44:26,486 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 05:44:26,491 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 05:44:26,491 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 05:44:26,493 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 05:44:26,494 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:44:26" (1/1) ... [2022-01-11 05:44:26,495 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@716c1e71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:44:26, skipping insertion in model container [2022-01-11 05:44:26,495 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:44:26" (1/1) ... [2022-01-11 05:44:26,499 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 05:44:26,577 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:44:26,907 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_spec4_product25.cil.c[63576,63589] [2022-01-11 05:44:26,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:44:26,919 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 05:44:26,929 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:44:26,984 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_spec4_product25.cil.c[63576,63589] [2022-01-11 05:44:26,985 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:44:26,989 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 05:44:27,063 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_spec4_product25.cil.c[63576,63589] [2022-01-11 05:44:27,063 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:44:27,087 INFO L208 MainTranslator]: Completed translation [2022-01-11 05:44:27,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:44:27 WrapperNode [2022-01-11 05:44:27,087 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 05:44:27,088 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 05:44:27,088 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 05:44:27,088 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 05:44:27,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:44:27" (1/1) ... [2022-01-11 05:44:27,116 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:44:27" (1/1) ... [2022-01-11 05:44:27,198 INFO L137 Inliner]: procedures = 132, calls = 218, calls flagged for inlining = 127, calls inlined = 310, statements flattened = 4657 [2022-01-11 05:44:27,198 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 05:44:27,199 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 05:44:27,199 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 05:44:27,199 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 05:44:27,205 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:44:27" (1/1) ... [2022-01-11 05:44:27,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:44:27" (1/1) ... [2022-01-11 05:44:27,214 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:44:27" (1/1) ... [2022-01-11 05:44:27,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:44:27" (1/1) ... [2022-01-11 05:44:27,246 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:44:27" (1/1) ... [2022-01-11 05:44:27,266 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:44:27" (1/1) ... [2022-01-11 05:44:27,276 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:44:27" (1/1) ... [2022-01-11 05:44:27,291 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 05:44:27,295 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 05:44:27,295 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 05:44:27,295 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 05:44:27,296 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:44:27" (1/1) ... [2022-01-11 05:44:27,300 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:44:27,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:44:27,318 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 05:44:27,319 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 05:44:27,340 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-01-11 05:44:27,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 05:44:27,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 05:44:27,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 05:44:27,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 05:44:27,554 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 05:44:27,555 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 05:44:29,037 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 05:44:29,060 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 05:44:29,060 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 05:44:29,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:44:29 BoogieIcfgContainer [2022-01-11 05:44:29,063 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 05:44:29,063 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 05:44:29,064 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 05:44:29,065 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 05:44:29,067 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:44:29" (1/1) ... [2022-01-11 05:44:29,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:44:29 BasicIcfg [2022-01-11 05:44:29,412 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 05:44:29,413 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 05:44:29,413 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 05:44:29,415 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 05:44:29,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:44:26" (1/4) ... [2022-01-11 05:44:29,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b4ca27b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:44:29, skipping insertion in model container [2022-01-11 05:44:29,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:44:27" (2/4) ... [2022-01-11 05:44:29,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b4ca27b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:44:29, skipping insertion in model container [2022-01-11 05:44:29,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:44:29" (3/4) ... [2022-01-11 05:44:29,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b4ca27b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:44:29, skipping insertion in model container [2022-01-11 05:44:29,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:44:29" (4/4) ... [2022-01-11 05:44:29,417 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec4_product25.cil.cTransformedIcfg [2022-01-11 05:44:29,420 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 05:44:29,420 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-01-11 05:44:29,466 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 05:44:29,470 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 05:44:29,470 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-11 05:44:29,495 INFO L276 IsEmpty]: Start isEmpty. Operand has 990 states, 983 states have (on average 1.6744659206510681) internal successors, (1646), 989 states have internal predecessors, (1646), 0 states have call successors, (0), 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 05:44:29,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-01-11 05:44:29,509 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:44:29,510 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] [2022-01-11 05:44:29,510 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:44:29,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:44:29,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1482550063, now seen corresponding path program 1 times [2022-01-11 05:44:29,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:44:29,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602944807] [2022-01-11 05:44:29,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:44:29,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:44:29,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:44:29,860 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 05:44:29,860 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:44:29,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602944807] [2022-01-11 05:44:29,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602944807] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:44:29,861 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:44:29,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 05:44:29,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912481764] [2022-01-11 05:44:29,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:44:29,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-11 05:44:29,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:44:29,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-11 05:44:29,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 05:44:29,896 INFO L87 Difference]: Start difference. First operand has 990 states, 983 states have (on average 1.6744659206510681) internal successors, (1646), 989 states have internal predecessors, (1646), 0 states have call successors, (0), 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 25.0) internal successors, (50), 2 states have internal predecessors, (50), 0 states have call successors, (0), 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 05:44:29,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:44:29,990 INFO L93 Difference]: Finished difference Result 1671 states and 2745 transitions. [2022-01-11 05:44:29,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-11 05:44:29,992 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2022-01-11 05:44:29,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:44:30,004 INFO L225 Difference]: With dead ends: 1671 [2022-01-11 05:44:30,004 INFO L226 Difference]: Without dead ends: 828 [2022-01-11 05:44:30,009 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 05:44:30,011 INFO L933 BasicCegarLoop]: 1632 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, 1632 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 05:44:30,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1632 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:44:30,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2022-01-11 05:44:30,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 828. [2022-01-11 05:44:30,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 822 states have (on average 1.6849148418491484) internal successors, (1385), 827 states have internal predecessors, (1385), 0 states have call successors, (0), 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 05:44:30,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1385 transitions. [2022-01-11 05:44:30,082 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1385 transitions. Word has length 50 [2022-01-11 05:44:30,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:44:30,082 INFO L470 AbstractCegarLoop]: Abstraction has 828 states and 1385 transitions. [2022-01-11 05:44:30,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 0 states have call successors, (0), 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 05:44:30,083 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1385 transitions. [2022-01-11 05:44:30,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-11 05:44:30,085 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:44:30,085 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] [2022-01-11 05:44:30,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 05:44:30,085 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:44:30,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:44:30,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1550916843, now seen corresponding path program 1 times [2022-01-11 05:44:30,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:44:30,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061127906] [2022-01-11 05:44:30,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:44:30,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:44:30,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:44:30,244 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 05:44:30,245 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:44:30,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061127906] [2022-01-11 05:44:30,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061127906] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:44:30,245 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:44:30,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:44:30,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253125353] [2022-01-11 05:44:30,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:44:30,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:44:30,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:44:30,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:44:30,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:44:30,247 INFO L87 Difference]: Start difference. First operand 828 states and 1385 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 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 05:44:30,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:44:30,355 INFO L93 Difference]: Finished difference Result 1637 states and 2742 transitions. [2022-01-11 05:44:30,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:44:30,357 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2022-01-11 05:44:30,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:44:30,360 INFO L225 Difference]: With dead ends: 1637 [2022-01-11 05:44:30,360 INFO L226 Difference]: Without dead ends: 828 [2022-01-11 05:44:30,362 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 05:44:30,363 INFO L933 BasicCegarLoop]: 1364 mSDtfsCounter, 1360 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1360 SdHoareTripleChecker+Valid, 1377 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:44:30,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1360 Valid, 1377 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:44:30,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2022-01-11 05:44:30,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 828. [2022-01-11 05:44:30,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 822 states have (on average 1.6824817518248176) internal successors, (1383), 827 states have internal predecessors, (1383), 0 states have call successors, (0), 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 05:44:30,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1383 transitions. [2022-01-11 05:44:30,390 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1383 transitions. Word has length 51 [2022-01-11 05:44:30,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:44:30,390 INFO L470 AbstractCegarLoop]: Abstraction has 828 states and 1383 transitions. [2022-01-11 05:44:30,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 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 05:44:30,392 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1383 transitions. [2022-01-11 05:44:30,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-01-11 05:44:30,399 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:44:30,399 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] [2022-01-11 05:44:30,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 05:44:30,399 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:44:30,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:44:30,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1729274773, now seen corresponding path program 1 times [2022-01-11 05:44:30,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:44:30,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107318242] [2022-01-11 05:44:30,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:44:30,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:44:30,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:44:30,499 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 05:44:30,499 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:44:30,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107318242] [2022-01-11 05:44:30,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107318242] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:44:30,500 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:44:30,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:44:30,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299694266] [2022-01-11 05:44:30,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:44:30,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:44:30,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:44:30,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:44:30,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:44:30,502 INFO L87 Difference]: Start difference. First operand 828 states and 1383 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 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 05:44:30,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:44:30,867 INFO L93 Difference]: Finished difference Result 4008 states and 6711 transitions. [2022-01-11 05:44:30,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-11 05:44:30,867 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2022-01-11 05:44:30,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:44:30,879 INFO L225 Difference]: With dead ends: 4008 [2022-01-11 05:44:30,879 INFO L226 Difference]: Without dead ends: 3204 [2022-01-11 05:44:30,883 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 05:44:30,883 INFO L933 BasicCegarLoop]: 2689 mSDtfsCounter, 6698 mSDsluCounter, 4021 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6698 SdHoareTripleChecker+Valid, 6710 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:44:30,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6698 Valid, 6710 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 05:44:30,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3204 states. [2022-01-11 05:44:30,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3204 to 828. [2022-01-11 05:44:30,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 822 states have (on average 1.6812652068126521) internal successors, (1382), 827 states have internal predecessors, (1382), 0 states have call successors, (0), 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 05:44:30,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1382 transitions. [2022-01-11 05:44:30,931 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1382 transitions. Word has length 53 [2022-01-11 05:44:30,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:44:30,932 INFO L470 AbstractCegarLoop]: Abstraction has 828 states and 1382 transitions. [2022-01-11 05:44:30,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 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 05:44:30,932 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1382 transitions. [2022-01-11 05:44:30,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-11 05:44:30,933 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:44:30,933 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] [2022-01-11 05:44:30,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 05:44:30,934 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:44:30,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:44:30,934 INFO L85 PathProgramCache]: Analyzing trace with hash 262811157, now seen corresponding path program 1 times [2022-01-11 05:44:30,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:44:30,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330550515] [2022-01-11 05:44:30,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:44:30,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:44:30,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:44:31,022 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 05:44:31,022 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:44:31,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330550515] [2022-01-11 05:44:31,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330550515] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:44:31,022 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:44:31,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:44:31,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999693621] [2022-01-11 05:44:31,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:44:31,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:44:31,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:44:31,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:44:31,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:44:31,024 INFO L87 Difference]: Start difference. First operand 828 states and 1382 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 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 05:44:31,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:44:31,070 INFO L93 Difference]: Finished difference Result 1641 states and 2742 transitions. [2022-01-11 05:44:31,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:44:31,071 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2022-01-11 05:44:31,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:44:31,073 INFO L225 Difference]: With dead ends: 1641 [2022-01-11 05:44:31,073 INFO L226 Difference]: Without dead ends: 842 [2022-01-11 05:44:31,074 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 05:44:31,078 INFO L933 BasicCegarLoop]: 1396 mSDtfsCounter, 1361 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1361 SdHoareTripleChecker+Valid, 1418 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 05:44:31,078 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1361 Valid, 1418 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:44:31,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 842 states. [2022-01-11 05:44:31,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 842 to 828. [2022-01-11 05:44:31,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 822 states have (on average 1.6800486618004866) internal successors, (1381), 827 states have internal predecessors, (1381), 0 states have call successors, (0), 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 05:44:31,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1381 transitions. [2022-01-11 05:44:31,125 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1381 transitions. Word has length 54 [2022-01-11 05:44:31,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:44:31,126 INFO L470 AbstractCegarLoop]: Abstraction has 828 states and 1381 transitions. [2022-01-11 05:44:31,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 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 05:44:31,126 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1381 transitions. [2022-01-11 05:44:31,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-11 05:44:31,127 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:44:31,128 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] [2022-01-11 05:44:31,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 05:44:31,128 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:44:31,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:44:31,128 INFO L85 PathProgramCache]: Analyzing trace with hash 772844534, now seen corresponding path program 1 times [2022-01-11 05:44:31,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:44:31,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588443875] [2022-01-11 05:44:31,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:44:31,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:44:31,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:44:31,232 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 05:44:31,232 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:44:31,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588443875] [2022-01-11 05:44:31,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588443875] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:44:31,233 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:44:31,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:44:31,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411632457] [2022-01-11 05:44:31,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:44:31,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:44:31,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:44:31,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:44:31,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:44:31,235 INFO L87 Difference]: Start difference. First operand 828 states and 1381 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 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 05:44:31,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:44:31,393 INFO L93 Difference]: Finished difference Result 2418 states and 4043 transitions. [2022-01-11 05:44:31,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:44:31,394 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2022-01-11 05:44:31,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:44:31,399 INFO L225 Difference]: With dead ends: 2418 [2022-01-11 05:44:31,399 INFO L226 Difference]: Without dead ends: 1624 [2022-01-11 05:44:31,400 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 05:44:31,403 INFO L933 BasicCegarLoop]: 1390 mSDtfsCounter, 6621 mSDsluCounter, 1404 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6621 SdHoareTripleChecker+Valid, 2794 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 05:44:31,403 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6621 Valid, 2794 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:44:31,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1624 states. [2022-01-11 05:44:31,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1624 to 828. [2022-01-11 05:44:31,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 822 states have (on average 1.6776155717761556) internal successors, (1379), 827 states have internal predecessors, (1379), 0 states have call successors, (0), 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 05:44:31,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1379 transitions. [2022-01-11 05:44:31,448 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1379 transitions. Word has length 55 [2022-01-11 05:44:31,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:44:31,448 INFO L470 AbstractCegarLoop]: Abstraction has 828 states and 1379 transitions. [2022-01-11 05:44:31,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 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 05:44:31,448 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1379 transitions. [2022-01-11 05:44:31,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-01-11 05:44:31,449 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:44:31,449 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] [2022-01-11 05:44:31,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 05:44:31,449 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:44:31,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:44:31,450 INFO L85 PathProgramCache]: Analyzing trace with hash 883188243, now seen corresponding path program 1 times [2022-01-11 05:44:31,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:44:31,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549702495] [2022-01-11 05:44:31,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:44:31,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:44:31,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:44:31,537 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 05:44:31,537 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:44:31,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549702495] [2022-01-11 05:44:31,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549702495] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:44:31,537 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:44:31,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 05:44:31,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933899318] [2022-01-11 05:44:31,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:44:31,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:44:31,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:44:31,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:44:31,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:44:31,538 INFO L87 Difference]: Start difference. First operand 828 states and 1379 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 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 05:44:32,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:44:32,120 INFO L93 Difference]: Finished difference Result 6242 states and 10184 transitions. [2022-01-11 05:44:32,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-11 05:44:32,120 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2022-01-11 05:44:32,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:44:32,138 INFO L225 Difference]: With dead ends: 6242 [2022-01-11 05:44:32,139 INFO L226 Difference]: Without dead ends: 5736 [2022-01-11 05:44:32,143 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 05:44:32,145 INFO L933 BasicCegarLoop]: 2411 mSDtfsCounter, 10662 mSDsluCounter, 9142 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10662 SdHoareTripleChecker+Valid, 11553 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:44:32,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10662 Valid, 11553 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 05:44:32,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5736 states. [2022-01-11 05:44:32,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5736 to 1460. [2022-01-11 05:44:32,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1460 states, 1454 states have (on average 1.6822558459422283) internal successors, (2446), 1459 states have internal predecessors, (2446), 0 states have call successors, (0), 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 05:44:32,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 2446 transitions. [2022-01-11 05:44:32,241 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 2446 transitions. Word has length 57 [2022-01-11 05:44:32,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:44:32,241 INFO L470 AbstractCegarLoop]: Abstraction has 1460 states and 2446 transitions. [2022-01-11 05:44:32,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 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 05:44:32,242 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 2446 transitions. [2022-01-11 05:44:32,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-11 05:44:32,243 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:44:32,243 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] [2022-01-11 05:44:32,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 05:44:32,243 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:44:32,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:44:32,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1575377829, now seen corresponding path program 1 times [2022-01-11 05:44:32,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:44:32,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69366672] [2022-01-11 05:44:32,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:44:32,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:44:32,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:44:32,324 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 05:44:32,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:44:32,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69366672] [2022-01-11 05:44:32,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69366672] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:44:32,325 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:44:32,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:44:32,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171186221] [2022-01-11 05:44:32,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:44:32,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:44:32,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:44:32,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:44:32,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:44:32,326 INFO L87 Difference]: Start difference. First operand 1460 states and 2446 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 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 05:44:32,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:44:32,532 INFO L93 Difference]: Finished difference Result 3003 states and 4916 transitions. [2022-01-11 05:44:32,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:44:32,533 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2022-01-11 05:44:32,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:44:32,539 INFO L225 Difference]: With dead ends: 3003 [2022-01-11 05:44:32,539 INFO L226 Difference]: Without dead ends: 2159 [2022-01-11 05:44:32,541 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 05:44:32,542 INFO L933 BasicCegarLoop]: 1361 mSDtfsCounter, 4351 mSDsluCounter, 1739 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4351 SdHoareTripleChecker+Valid, 3100 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:44:32,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4351 Valid, 3100 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:44:32,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2159 states. [2022-01-11 05:44:32,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2159 to 1460. [2022-01-11 05:44:32,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1460 states, 1454 states have (on average 1.6795048143053646) internal successors, (2442), 1459 states have internal predecessors, (2442), 0 states have call successors, (0), 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 05:44:32,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 2442 transitions. [2022-01-11 05:44:32,615 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 2442 transitions. Word has length 58 [2022-01-11 05:44:32,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:44:32,616 INFO L470 AbstractCegarLoop]: Abstraction has 1460 states and 2442 transitions. [2022-01-11 05:44:32,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 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 05:44:32,616 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 2442 transitions. [2022-01-11 05:44:32,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-11 05:44:32,617 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:44:32,617 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] [2022-01-11 05:44:32,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 05:44:32,618 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:44:32,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:44:32,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1726710223, now seen corresponding path program 1 times [2022-01-11 05:44:32,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:44:32,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944668450] [2022-01-11 05:44:32,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:44:32,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:44:32,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:44:32,697 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 05:44:32,697 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:44:32,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944668450] [2022-01-11 05:44:32,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944668450] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:44:32,697 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:44:32,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:44:32,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493115984] [2022-01-11 05:44:32,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:44:32,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:44:32,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:44:32,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:44:32,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:44:32,698 INFO L87 Difference]: Start difference. First operand 1460 states and 2442 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 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 05:44:32,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:44:32,905 INFO L93 Difference]: Finished difference Result 4257 states and 7155 transitions. [2022-01-11 05:44:32,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:44:32,906 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2022-01-11 05:44:32,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:44:32,915 INFO L225 Difference]: With dead ends: 4257 [2022-01-11 05:44:32,915 INFO L226 Difference]: Without dead ends: 2834 [2022-01-11 05:44:32,917 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 05:44:32,918 INFO L933 BasicCegarLoop]: 2657 mSDtfsCounter, 4068 mSDsluCounter, 1330 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4068 SdHoareTripleChecker+Valid, 3987 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 05:44:32,918 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4068 Valid, 3987 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:44:32,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2834 states. [2022-01-11 05:44:33,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2834 to 1460. [2022-01-11 05:44:33,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1460 states, 1454 states have (on average 1.6781292984869327) internal successors, (2440), 1459 states have internal predecessors, (2440), 0 states have call successors, (0), 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 05:44:33,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 2440 transitions. [2022-01-11 05:44:33,019 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 2440 transitions. Word has length 58 [2022-01-11 05:44:33,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:44:33,019 INFO L470 AbstractCegarLoop]: Abstraction has 1460 states and 2440 transitions. [2022-01-11 05:44:33,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 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 05:44:33,019 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 2440 transitions. [2022-01-11 05:44:33,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-11 05:44:33,020 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:44:33,021 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 05:44:33,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 05:44:33,021 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:44:33,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:44:33,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1788057698, now seen corresponding path program 1 times [2022-01-11 05:44:33,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:44:33,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357605441] [2022-01-11 05:44:33,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:44:33,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:44:33,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:44:33,094 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 05:44:33,095 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:44:33,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357605441] [2022-01-11 05:44:33,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357605441] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:44:33,095 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:44:33,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:44:33,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989062829] [2022-01-11 05:44:33,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:44:33,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:44:33,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:44:33,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:44:33,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:44:33,096 INFO L87 Difference]: Start difference. First operand 1460 states and 2440 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 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 05:44:33,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:44:33,759 INFO L93 Difference]: Finished difference Result 6798 states and 10972 transitions. [2022-01-11 05:44:33,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:44:33,760 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 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 05:44:33,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:44:33,779 INFO L225 Difference]: With dead ends: 6798 [2022-01-11 05:44:33,780 INFO L226 Difference]: Without dead ends: 6058 [2022-01-11 05:44:33,782 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 05:44:33,783 INFO L933 BasicCegarLoop]: 1355 mSDtfsCounter, 7099 mSDsluCounter, 4402 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7099 SdHoareTripleChecker+Valid, 5757 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:44:33,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7099 Valid, 5757 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 05:44:33,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6058 states. [2022-01-11 05:44:33,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6058 to 2296. [2022-01-11 05:44:33,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2296 states, 2290 states have (on average 1.6524017467248908) internal successors, (3784), 2295 states have internal predecessors, (3784), 0 states have call successors, (0), 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 05:44:33,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2296 states to 2296 states and 3784 transitions. [2022-01-11 05:44:33,974 INFO L78 Accepts]: Start accepts. Automaton has 2296 states and 3784 transitions. Word has length 59 [2022-01-11 05:44:33,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:44:33,975 INFO L470 AbstractCegarLoop]: Abstraction has 2296 states and 3784 transitions. [2022-01-11 05:44:33,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 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 05:44:33,975 INFO L276 IsEmpty]: Start isEmpty. Operand 2296 states and 3784 transitions. [2022-01-11 05:44:33,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-11 05:44:33,976 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:44:33,976 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 05:44:33,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 05:44:33,977 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:44:33,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:44:33,977 INFO L85 PathProgramCache]: Analyzing trace with hash 901112203, now seen corresponding path program 1 times [2022-01-11 05:44:33,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:44:33,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578864964] [2022-01-11 05:44:33,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:44:33,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:44:34,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:44:34,058 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 05:44:34,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:44:34,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578864964] [2022-01-11 05:44:34,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578864964] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:44:34,058 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:44:34,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:44:34,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229456645] [2022-01-11 05:44:34,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:44:34,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:44:34,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:44:34,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:44:34,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:44:34,060 INFO L87 Difference]: Start difference. First operand 2296 states and 3784 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 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 05:44:34,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:44:34,535 INFO L93 Difference]: Finished difference Result 4929 states and 7975 transitions. [2022-01-11 05:44:34,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-11 05:44:34,535 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 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 05:44:34,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:44:34,555 INFO L225 Difference]: With dead ends: 4929 [2022-01-11 05:44:34,555 INFO L226 Difference]: Without dead ends: 3465 [2022-01-11 05:44:34,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2022-01-11 05:44:34,558 INFO L933 BasicCegarLoop]: 1377 mSDtfsCounter, 6240 mSDsluCounter, 4865 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6240 SdHoareTripleChecker+Valid, 6242 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:44:34,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6240 Valid, 6242 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:44:34,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3465 states. [2022-01-11 05:44:34,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3465 to 2254. [2022-01-11 05:44:34,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2254 states, 2248 states have (on average 1.6459074733096086) internal successors, (3700), 2253 states have internal predecessors, (3700), 0 states have call successors, (0), 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 05:44:34,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2254 states to 2254 states and 3700 transitions. [2022-01-11 05:44:34,757 INFO L78 Accepts]: Start accepts. Automaton has 2254 states and 3700 transitions. Word has length 60 [2022-01-11 05:44:34,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:44:34,757 INFO L470 AbstractCegarLoop]: Abstraction has 2254 states and 3700 transitions. [2022-01-11 05:44:34,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 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 05:44:34,757 INFO L276 IsEmpty]: Start isEmpty. Operand 2254 states and 3700 transitions. [2022-01-11 05:44:34,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-11 05:44:34,759 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:44:34,759 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] [2022-01-11 05:44:34,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 05:44:34,759 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:44:34,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:44:34,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1520423259, now seen corresponding path program 1 times [2022-01-11 05:44:34,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:44:34,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064450666] [2022-01-11 05:44:34,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:44:34,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:44:34,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:44:34,860 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 05:44:34,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:44:34,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064450666] [2022-01-11 05:44:34,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064450666] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:44:34,861 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:44:34,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:44:34,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502310660] [2022-01-11 05:44:34,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:44:34,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:44:34,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:44:34,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:44:34,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:44:34,862 INFO L87 Difference]: Start difference. First operand 2254 states and 3700 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 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 05:44:36,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:44:36,681 INFO L93 Difference]: Finished difference Result 13117 states and 21147 transitions. [2022-01-11 05:44:36,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-11 05:44:36,681 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2022-01-11 05:44:36,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:44:36,705 INFO L225 Difference]: With dead ends: 13117 [2022-01-11 05:44:36,705 INFO L226 Difference]: Without dead ends: 12777 [2022-01-11 05:44:36,709 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=218, Invalid=538, Unknown=0, NotChecked=0, Total=756 [2022-01-11 05:44:36,709 INFO L933 BasicCegarLoop]: 4600 mSDtfsCounter, 7929 mSDsluCounter, 19387 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7929 SdHoareTripleChecker+Valid, 23987 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-11 05:44:36,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7929 Valid, 23987 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-11 05:44:36,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12777 states. [2022-01-11 05:44:37,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12777 to 3239. [2022-01-11 05:44:37,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3239 states, 3233 states have (on average 1.6353232291988864) internal successors, (5287), 3238 states have internal predecessors, (5287), 0 states have call successors, (0), 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 05:44:37,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3239 states to 3239 states and 5287 transitions. [2022-01-11 05:44:37,083 INFO L78 Accepts]: Start accepts. Automaton has 3239 states and 5287 transitions. Word has length 61 [2022-01-11 05:44:37,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:44:37,084 INFO L470 AbstractCegarLoop]: Abstraction has 3239 states and 5287 transitions. [2022-01-11 05:44:37,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 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 05:44:37,084 INFO L276 IsEmpty]: Start isEmpty. Operand 3239 states and 5287 transitions. [2022-01-11 05:44:37,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-01-11 05:44:37,085 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:44:37,085 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 05:44:37,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 05:44:37,085 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:44:37,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:44:37,086 INFO L85 PathProgramCache]: Analyzing trace with hash -110592822, now seen corresponding path program 1 times [2022-01-11 05:44:37,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:44:37,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47917851] [2022-01-11 05:44:37,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:44:37,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:44:37,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:44:37,198 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 05:44:37,198 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:44:37,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47917851] [2022-01-11 05:44:37,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47917851] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:44:37,199 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:44:37,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 05:44:37,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035321410] [2022-01-11 05:44:37,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:44:37,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:44:37,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:44:37,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:44:37,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:44:37,200 INFO L87 Difference]: Start difference. First operand 3239 states and 5287 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 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 05:44:38,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:44:38,547 INFO L93 Difference]: Finished difference Result 10463 states and 16787 transitions. [2022-01-11 05:44:38,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-11 05:44:38,550 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 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 05:44:38,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:44:38,563 INFO L225 Difference]: With dead ends: 10463 [2022-01-11 05:44:38,563 INFO L226 Difference]: Without dead ends: 9095 [2022-01-11 05:44:38,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-01-11 05:44:38,566 INFO L933 BasicCegarLoop]: 1765 mSDtfsCounter, 5622 mSDsluCounter, 5509 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5622 SdHoareTripleChecker+Valid, 7274 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-11 05:44:38,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5622 Valid, 7274 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-11 05:44:38,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9095 states. [2022-01-11 05:44:38,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9095 to 3433. [2022-01-11 05:44:38,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3433 states, 3427 states have (on average 1.6259118762766267) internal successors, (5572), 3432 states have internal predecessors, (5572), 0 states have call successors, (0), 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 05:44:38,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3433 states to 3433 states and 5572 transitions. [2022-01-11 05:44:38,902 INFO L78 Accepts]: Start accepts. Automaton has 3433 states and 5572 transitions. Word has length 62 [2022-01-11 05:44:38,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:44:38,902 INFO L470 AbstractCegarLoop]: Abstraction has 3433 states and 5572 transitions. [2022-01-11 05:44:38,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 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 05:44:38,903 INFO L276 IsEmpty]: Start isEmpty. Operand 3433 states and 5572 transitions. [2022-01-11 05:44:38,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-11 05:44:38,904 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:44:38,904 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 05:44:38,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 05:44:38,904 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:44:38,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:44:38,905 INFO L85 PathProgramCache]: Analyzing trace with hash 868529113, now seen corresponding path program 1 times [2022-01-11 05:44:38,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:44:38,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440263742] [2022-01-11 05:44:38,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:44:38,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:44:38,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:44:39,006 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 05:44:39,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:44:39,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440263742] [2022-01-11 05:44:39,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440263742] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:44:39,007 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:44:39,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 05:44:39,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073243166] [2022-01-11 05:44:39,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:44:39,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:44:39,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:44:39,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:44:39,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:44:39,008 INFO L87 Difference]: Start difference. First operand 3433 states and 5572 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 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 05:44:40,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:44:40,472 INFO L93 Difference]: Finished difference Result 10541 states and 16875 transitions. [2022-01-11 05:44:40,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-11 05:44:40,473 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 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 05:44:40,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:44:40,488 INFO L225 Difference]: With dead ends: 10541 [2022-01-11 05:44:40,488 INFO L226 Difference]: Without dead ends: 8969 [2022-01-11 05:44:40,493 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-01-11 05:44:40,496 INFO L933 BasicCegarLoop]: 1789 mSDtfsCounter, 5545 mSDsluCounter, 5509 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5545 SdHoareTripleChecker+Valid, 7298 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:44:40,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5545 Valid, 7298 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 05:44:40,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8969 states. [2022-01-11 05:44:40,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8969 to 3375. [2022-01-11 05:44:40,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3375 states, 3369 states have (on average 1.6280795488275452) internal successors, (5485), 3374 states have internal predecessors, (5485), 0 states have call successors, (0), 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 05:44:40,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3375 states to 3375 states and 5485 transitions. [2022-01-11 05:44:40,880 INFO L78 Accepts]: Start accepts. Automaton has 3375 states and 5485 transitions. Word has length 63 [2022-01-11 05:44:40,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:44:40,880 INFO L470 AbstractCegarLoop]: Abstraction has 3375 states and 5485 transitions. [2022-01-11 05:44:40,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 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 05:44:40,881 INFO L276 IsEmpty]: Start isEmpty. Operand 3375 states and 5485 transitions. [2022-01-11 05:44:40,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-11 05:44:40,882 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:44:40,882 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 05:44:40,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 05:44:40,883 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:44:40,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:44:40,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1759375956, now seen corresponding path program 1 times [2022-01-11 05:44:40,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:44:40,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614951888] [2022-01-11 05:44:40,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:44:40,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:44:40,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:44:40,949 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 05:44:40,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:44:40,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614951888] [2022-01-11 05:44:40,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614951888] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:44:40,949 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:44:40,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:44:40,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988162771] [2022-01-11 05:44:40,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:44:40,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:44:40,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:44:40,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:44:40,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:44:40,950 INFO L87 Difference]: Start difference. First operand 3375 states and 5485 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 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 05:44:42,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:44:42,050 INFO L93 Difference]: Finished difference Result 10770 states and 17227 transitions. [2022-01-11 05:44:42,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:44:42,050 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 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 05:44:42,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:44:42,062 INFO L225 Difference]: With dead ends: 10770 [2022-01-11 05:44:42,063 INFO L226 Difference]: Without dead ends: 8287 [2022-01-11 05:44:42,067 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 05:44:42,067 INFO L933 BasicCegarLoop]: 1322 mSDtfsCounter, 4571 mSDsluCounter, 3221 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4571 SdHoareTripleChecker+Valid, 4543 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:44:42,067 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4571 Valid, 4543 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:44:42,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8287 states. [2022-01-11 05:44:42,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8287 to 4780. [2022-01-11 05:44:42,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4780 states, 4774 states have (on average 1.6248428990364474) internal successors, (7757), 4779 states have internal predecessors, (7757), 0 states have call successors, (0), 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 05:44:42,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4780 states to 4780 states and 7757 transitions. [2022-01-11 05:44:42,584 INFO L78 Accepts]: Start accepts. Automaton has 4780 states and 7757 transitions. Word has length 63 [2022-01-11 05:44:42,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:44:42,584 INFO L470 AbstractCegarLoop]: Abstraction has 4780 states and 7757 transitions. [2022-01-11 05:44:42,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 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 05:44:42,585 INFO L276 IsEmpty]: Start isEmpty. Operand 4780 states and 7757 transitions. [2022-01-11 05:44:42,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-11 05:44:42,587 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:44:42,587 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 05:44:42,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 05:44:42,587 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:44:42,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:44:42,588 INFO L85 PathProgramCache]: Analyzing trace with hash -27441110, now seen corresponding path program 1 times [2022-01-11 05:44:42,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:44:42,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978842366] [2022-01-11 05:44:42,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:44:42,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:44:42,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:44:42,676 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 05:44:42,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:44:42,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978842366] [2022-01-11 05:44:42,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978842366] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:44:42,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:44:42,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:44:42,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556923412] [2022-01-11 05:44:42,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:44:42,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:44:42,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:44:42,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:44:42,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:44:42,677 INFO L87 Difference]: Start difference. First operand 4780 states and 7757 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 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 05:44:43,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:44:43,713 INFO L93 Difference]: Finished difference Result 10482 states and 16900 transitions. [2022-01-11 05:44:43,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:44:43,713 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 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 05:44:43,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:44:43,721 INFO L225 Difference]: With dead ends: 10482 [2022-01-11 05:44:43,721 INFO L226 Difference]: Without dead ends: 7278 [2022-01-11 05:44:43,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:44:43,725 INFO L933 BasicCegarLoop]: 1632 mSDtfsCounter, 2573 mSDsluCounter, 3269 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2573 SdHoareTripleChecker+Valid, 4901 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:44:43,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2573 Valid, 4901 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:44:43,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7278 states. [2022-01-11 05:44:44,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7278 to 3770. [2022-01-11 05:44:44,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3770 states, 3764 states have (on average 1.6288522848034006) internal successors, (6131), 3769 states have internal predecessors, (6131), 0 states have call successors, (0), 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 05:44:44,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3770 states to 3770 states and 6131 transitions. [2022-01-11 05:44:44,163 INFO L78 Accepts]: Start accepts. Automaton has 3770 states and 6131 transitions. Word has length 63 [2022-01-11 05:44:44,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:44:44,164 INFO L470 AbstractCegarLoop]: Abstraction has 3770 states and 6131 transitions. [2022-01-11 05:44:44,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 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 05:44:44,164 INFO L276 IsEmpty]: Start isEmpty. Operand 3770 states and 6131 transitions. [2022-01-11 05:44:44,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-11 05:44:44,166 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:44:44,166 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 05:44:44,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 05:44:44,167 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:44:44,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:44:44,167 INFO L85 PathProgramCache]: Analyzing trace with hash 467207394, now seen corresponding path program 1 times [2022-01-11 05:44:44,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:44:44,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165056827] [2022-01-11 05:44:44,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:44:44,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:44:44,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:44:44,259 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 05:44:44,260 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:44:44,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165056827] [2022-01-11 05:44:44,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165056827] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:44:44,262 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:44:44,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-11 05:44:44,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329903158] [2022-01-11 05:44:44,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:44:44,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 05:44:44,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:44:44,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 05:44:44,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:44:44,263 INFO L87 Difference]: Start difference. First operand 3770 states and 6131 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 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 05:44:45,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:44:45,543 INFO L93 Difference]: Finished difference Result 8275 states and 13258 transitions. [2022-01-11 05:44:45,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-11 05:44:45,544 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 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 05:44:45,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:44:45,551 INFO L225 Difference]: With dead ends: 8275 [2022-01-11 05:44:45,551 INFO L226 Difference]: Without dead ends: 7329 [2022-01-11 05:44:45,553 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2022-01-11 05:44:45,553 INFO L933 BasicCegarLoop]: 1789 mSDtfsCounter, 7235 mSDsluCounter, 7274 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7235 SdHoareTripleChecker+Valid, 9063 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:44:45,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7235 Valid, 9063 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 05:44:45,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7329 states. [2022-01-11 05:44:45,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7329 to 3850. [2022-01-11 05:44:45,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3850 states, 3844 states have (on average 1.6214880332986472) internal successors, (6233), 3849 states have internal predecessors, (6233), 0 states have call successors, (0), 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 05:44:46,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3850 states to 3850 states and 6233 transitions. [2022-01-11 05:44:46,001 INFO L78 Accepts]: Start accepts. Automaton has 3850 states and 6233 transitions. Word has length 64 [2022-01-11 05:44:46,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:44:46,001 INFO L470 AbstractCegarLoop]: Abstraction has 3850 states and 6233 transitions. [2022-01-11 05:44:46,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 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 05:44:46,001 INFO L276 IsEmpty]: Start isEmpty. Operand 3850 states and 6233 transitions. [2022-01-11 05:44:46,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-11 05:44:46,003 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:44:46,003 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 05:44:46,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-11 05:44:46,004 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:44:46,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:44:46,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1058566870, now seen corresponding path program 1 times [2022-01-11 05:44:46,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:44:46,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143824656] [2022-01-11 05:44:46,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:44:46,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:44:46,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:44:46,064 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 05:44:46,064 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:44:46,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143824656] [2022-01-11 05:44:46,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143824656] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:44:46,065 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:44:46,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:44:46,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062899622] [2022-01-11 05:44:46,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:44:46,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:44:46,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:44:46,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:44:46,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:44:46,066 INFO L87 Difference]: Start difference. First operand 3850 states and 6233 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 05:44:47,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:44:47,238 INFO L93 Difference]: Finished difference Result 9903 states and 15829 transitions. [2022-01-11 05:44:47,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 05:44:47,238 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 05:44:47,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:44:47,246 INFO L225 Difference]: With dead ends: 9903 [2022-01-11 05:44:47,246 INFO L226 Difference]: Without dead ends: 7555 [2022-01-11 05:44:47,249 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 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 05:44:47,249 INFO L933 BasicCegarLoop]: 1853 mSDtfsCounter, 4813 mSDsluCounter, 3930 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4813 SdHoareTripleChecker+Valid, 5783 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:44:47,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4813 Valid, 5783 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:44:47,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7555 states. [2022-01-11 05:44:47,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7555 to 3878. [2022-01-11 05:44:47,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3878 states, 3872 states have (on average 1.619059917355372) internal successors, (6269), 3877 states have internal predecessors, (6269), 0 states have call successors, (0), 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 05:44:47,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3878 states to 3878 states and 6269 transitions. [2022-01-11 05:44:47,719 INFO L78 Accepts]: Start accepts. Automaton has 3878 states and 6269 transitions. Word has length 64 [2022-01-11 05:44:47,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:44:47,720 INFO L470 AbstractCegarLoop]: Abstraction has 3878 states and 6269 transitions. [2022-01-11 05:44:47,720 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 05:44:47,720 INFO L276 IsEmpty]: Start isEmpty. Operand 3878 states and 6269 transitions. [2022-01-11 05:44:47,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-11 05:44:47,722 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:44:47,722 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] [2022-01-11 05:44:47,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-11 05:44:47,722 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:44:47,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:44:47,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1600466625, now seen corresponding path program 1 times [2022-01-11 05:44:47,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:44:47,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579327279] [2022-01-11 05:44:47,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:44:47,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:44:47,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:44:47,821 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 05:44:47,821 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:44:47,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579327279] [2022-01-11 05:44:47,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579327279] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:44:47,821 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:44:47,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:44:47,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056070509] [2022-01-11 05:44:47,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:44:47,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:44:47,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:44:47,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:44:47,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:44:47,822 INFO L87 Difference]: Start difference. First operand 3878 states and 6269 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 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 05:44:48,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:44:48,831 INFO L93 Difference]: Finished difference Result 8771 states and 13988 transitions. [2022-01-11 05:44:48,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:44:48,831 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2022-01-11 05:44:48,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:44:48,837 INFO L225 Difference]: With dead ends: 8771 [2022-01-11 05:44:48,837 INFO L226 Difference]: Without dead ends: 5910 [2022-01-11 05:44:48,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 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 05:44:48,840 INFO L933 BasicCegarLoop]: 1342 mSDtfsCounter, 4402 mSDsluCounter, 3215 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4402 SdHoareTripleChecker+Valid, 4557 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:44:48,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4402 Valid, 4557 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:44:48,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5910 states. [2022-01-11 05:44:49,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5910 to 3434. [2022-01-11 05:44:49,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3434 states, 3428 states have (on average 1.6274795799299884) internal successors, (5579), 3433 states have internal predecessors, (5579), 0 states have call successors, (0), 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 05:44:49,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3434 states to 3434 states and 5579 transitions. [2022-01-11 05:44:49,268 INFO L78 Accepts]: Start accepts. Automaton has 3434 states and 5579 transitions. Word has length 65 [2022-01-11 05:44:49,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:44:49,269 INFO L470 AbstractCegarLoop]: Abstraction has 3434 states and 5579 transitions. [2022-01-11 05:44:49,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 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 05:44:49,269 INFO L276 IsEmpty]: Start isEmpty. Operand 3434 states and 5579 transitions. [2022-01-11 05:44:49,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-11 05:44:49,271 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:44:49,271 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] [2022-01-11 05:44:49,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-11 05:44:49,271 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:44:49,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:44:49,272 INFO L85 PathProgramCache]: Analyzing trace with hash 2111760083, now seen corresponding path program 1 times [2022-01-11 05:44:49,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:44:49,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776504340] [2022-01-11 05:44:49,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:44:49,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:44:49,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:44:49,343 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 05:44:49,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:44:49,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776504340] [2022-01-11 05:44:49,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776504340] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:44:49,344 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:44:49,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 05:44:49,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075711564] [2022-01-11 05:44:49,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:44:49,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:44:49,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:44:49,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:44:49,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:44:49,346 INFO L87 Difference]: Start difference. First operand 3434 states and 5579 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 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 05:44:50,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:44:50,654 INFO L93 Difference]: Finished difference Result 9128 states and 14665 transitions. [2022-01-11 05:44:50,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-11 05:44:50,654 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2022-01-11 05:44:50,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:44:50,662 INFO L225 Difference]: With dead ends: 9128 [2022-01-11 05:44:50,662 INFO L226 Difference]: Without dead ends: 7244 [2022-01-11 05:44:50,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-01-11 05:44:50,665 INFO L933 BasicCegarLoop]: 1839 mSDtfsCounter, 6120 mSDsluCounter, 5295 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6120 SdHoareTripleChecker+Valid, 7134 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:44:50,665 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6120 Valid, 7134 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 05:44:50,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7244 states. [2022-01-11 05:44:51,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7244 to 4002. [2022-01-11 05:44:51,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4002 states, 3996 states have (on average 1.6226226226226226) internal successors, (6484), 4001 states have internal predecessors, (6484), 0 states have call successors, (0), 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 05:44:51,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4002 states to 4002 states and 6484 transitions. [2022-01-11 05:44:51,174 INFO L78 Accepts]: Start accepts. Automaton has 4002 states and 6484 transitions. Word has length 65 [2022-01-11 05:44:51,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:44:51,174 INFO L470 AbstractCegarLoop]: Abstraction has 4002 states and 6484 transitions. [2022-01-11 05:44:51,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 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 05:44:51,175 INFO L276 IsEmpty]: Start isEmpty. Operand 4002 states and 6484 transitions. [2022-01-11 05:44:51,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-11 05:44:51,177 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:44:51,177 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 05:44:51,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-11 05:44:51,177 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:44:51,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:44:51,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1493786557, now seen corresponding path program 1 times [2022-01-11 05:44:51,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:44:51,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013223681] [2022-01-11 05:44:51,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:44:51,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:44:51,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:44:51,254 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 05:44:51,254 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:44:51,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013223681] [2022-01-11 05:44:51,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013223681] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:44:51,254 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:44:51,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:44:51,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464494598] [2022-01-11 05:44:51,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:44:51,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:44:51,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:44:51,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:44:51,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:44:51,255 INFO L87 Difference]: Start difference. First operand 4002 states and 6484 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 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 05:44:52,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:44:52,504 INFO L93 Difference]: Finished difference Result 7303 states and 11707 transitions. [2022-01-11 05:44:52,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-11 05:44:52,504 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 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 05:44:52,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:44:52,511 INFO L225 Difference]: With dead ends: 7303 [2022-01-11 05:44:52,512 INFO L226 Difference]: Without dead ends: 6452 [2022-01-11 05:44:52,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2022-01-11 05:44:52,513 INFO L933 BasicCegarLoop]: 1822 mSDtfsCounter, 7978 mSDsluCounter, 8937 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7978 SdHoareTripleChecker+Valid, 10759 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:44:52,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7978 Valid, 10759 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 05:44:52,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6452 states. [2022-01-11 05:44:53,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6452 to 4052. [2022-01-11 05:44:53,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4052 states, 4046 states have (on average 1.6159169550173011) internal successors, (6538), 4051 states have internal predecessors, (6538), 0 states have call successors, (0), 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 05:44:53,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4052 states to 4052 states and 6538 transitions. [2022-01-11 05:44:53,077 INFO L78 Accepts]: Start accepts. Automaton has 4052 states and 6538 transitions. Word has length 66 [2022-01-11 05:44:53,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:44:53,077 INFO L470 AbstractCegarLoop]: Abstraction has 4052 states and 6538 transitions. [2022-01-11 05:44:53,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 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 05:44:53,078 INFO L276 IsEmpty]: Start isEmpty. Operand 4052 states and 6538 transitions. [2022-01-11 05:44:53,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-11 05:44:53,081 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:44:53,081 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 05:44:53,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-11 05:44:53,081 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:44:53,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:44:53,082 INFO L85 PathProgramCache]: Analyzing trace with hash 939196288, now seen corresponding path program 1 times [2022-01-11 05:44:53,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:44:53,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160342525] [2022-01-11 05:44:53,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:44:53,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:44:53,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:44:53,177 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 05:44:53,177 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:44:53,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160342525] [2022-01-11 05:44:53,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160342525] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:44:53,177 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:44:53,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:44:53,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050804750] [2022-01-11 05:44:53,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:44:53,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:44:53,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:44:53,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:44:53,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:44:53,179 INFO L87 Difference]: Start difference. First operand 4052 states and 6538 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 05:44:54,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:44:54,040 INFO L93 Difference]: Finished difference Result 7069 states and 11287 transitions. [2022-01-11 05:44:54,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 05:44:54,040 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 05:44:54,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:44:54,046 INFO L225 Difference]: With dead ends: 7069 [2022-01-11 05:44:54,046 INFO L226 Difference]: Without dead ends: 4556 [2022-01-11 05:44:54,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 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 05:44:54,050 INFO L933 BasicCegarLoop]: 1802 mSDtfsCounter, 3610 mSDsluCounter, 3344 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3610 SdHoareTripleChecker+Valid, 5146 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:44:54,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3610 Valid, 5146 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:44:54,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4556 states. [2022-01-11 05:44:54,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4556 to 3097. [2022-01-11 05:44:54,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3097 states, 3094 states have (on average 1.6263736263736264) internal successors, (5032), 3096 states have internal predecessors, (5032), 0 states have call successors, (0), 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 05:44:54,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3097 states to 3097 states and 5032 transitions. [2022-01-11 05:44:54,481 INFO L78 Accepts]: Start accepts. Automaton has 3097 states and 5032 transitions. Word has length 67 [2022-01-11 05:44:54,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:44:54,481 INFO L470 AbstractCegarLoop]: Abstraction has 3097 states and 5032 transitions. [2022-01-11 05:44:54,481 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 05:44:54,482 INFO L276 IsEmpty]: Start isEmpty. Operand 3097 states and 5032 transitions. [2022-01-11 05:44:54,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-11 05:44:54,484 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:44:54,484 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:44:54,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-11 05:44:54,485 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:44:54,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:44:54,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1997982265, now seen corresponding path program 1 times [2022-01-11 05:44:54,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:44:54,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978193955] [2022-01-11 05:44:54,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:44:54,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:44:54,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:44:54,548 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 05:44:54,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:44:54,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978193955] [2022-01-11 05:44:54,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978193955] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:44:54,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:44:54,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:44:54,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499048741] [2022-01-11 05:44:54,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:44:54,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:44:54,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:44:54,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:44:54,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:44:54,550 INFO L87 Difference]: Start difference. First operand 3097 states and 5032 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 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 05:44:55,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:44:55,004 INFO L93 Difference]: Finished difference Result 4956 states and 7957 transitions. [2022-01-11 05:44:55,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:44:55,005 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2022-01-11 05:44:55,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:44:55,009 INFO L225 Difference]: With dead ends: 4956 [2022-01-11 05:44:55,009 INFO L226 Difference]: Without dead ends: 3097 [2022-01-11 05:44:55,011 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 05:44:55,011 INFO L933 BasicCegarLoop]: 1333 mSDtfsCounter, 1360 mSDsluCounter, 1314 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1360 SdHoareTripleChecker+Valid, 2647 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:44:55,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1360 Valid, 2647 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:44:55,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3097 states. [2022-01-11 05:44:55,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3097 to 3097. [2022-01-11 05:44:55,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3097 states, 3094 states have (on average 1.6199095022624435) internal successors, (5012), 3096 states have internal predecessors, (5012), 0 states have call successors, (0), 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 05:44:55,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3097 states to 3097 states and 5012 transitions. [2022-01-11 05:44:55,452 INFO L78 Accepts]: Start accepts. Automaton has 3097 states and 5012 transitions. Word has length 96 [2022-01-11 05:44:55,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:44:55,452 INFO L470 AbstractCegarLoop]: Abstraction has 3097 states and 5012 transitions. [2022-01-11 05:44:55,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 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 05:44:55,452 INFO L276 IsEmpty]: Start isEmpty. Operand 3097 states and 5012 transitions. [2022-01-11 05:44:55,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-11 05:44:55,455 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:44:55,455 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, 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 05:44:55,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-11 05:44:55,455 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:44:55,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:44:55,456 INFO L85 PathProgramCache]: Analyzing trace with hash 291968396, now seen corresponding path program 1 times [2022-01-11 05:44:55,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:44:55,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111975084] [2022-01-11 05:44:55,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:44:55,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:44:55,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:44:55,580 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 05:44:55,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:44:55,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111975084] [2022-01-11 05:44:55,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111975084] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:44:55,580 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:44:55,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-11 05:44:55,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644249106] [2022-01-11 05:44:55,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:44:55,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-11 05:44:55,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:44:55,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-11 05:44:55,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-11 05:44:55,581 INFO L87 Difference]: Start difference. First operand 3097 states and 5012 transitions. Second operand has 10 states, 10 states have (on average 9.9) internal successors, (99), 10 states have internal predecessors, (99), 0 states have call successors, (0), 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 05:44:59,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:44:59,863 INFO L93 Difference]: Finished difference Result 21921 states and 34355 transitions. [2022-01-11 05:44:59,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-11 05:44:59,864 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 10 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-11 05:44:59,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:44:59,889 INFO L225 Difference]: With dead ends: 21921 [2022-01-11 05:44:59,889 INFO L226 Difference]: Without dead ends: 20122 [2022-01-11 05:44:59,895 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=369, Invalid=963, Unknown=0, NotChecked=0, Total=1332 [2022-01-11 05:44:59,895 INFO L933 BasicCegarLoop]: 2592 mSDtfsCounter, 9636 mSDsluCounter, 17836 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9636 SdHoareTripleChecker+Valid, 20428 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-11 05:44:59,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9636 Valid, 20428 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-11 05:44:59,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20122 states. [2022-01-11 05:45:00,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20122 to 5656. [2022-01-11 05:45:00,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5656 states, 5653 states have (on average 1.6071112683530868) internal successors, (9085), 5655 states have internal predecessors, (9085), 0 states have call successors, (0), 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 05:45:00,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5656 states to 5656 states and 9085 transitions. [2022-01-11 05:45:00,897 INFO L78 Accepts]: Start accepts. Automaton has 5656 states and 9085 transitions. Word has length 99 [2022-01-11 05:45:00,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:45:00,897 INFO L470 AbstractCegarLoop]: Abstraction has 5656 states and 9085 transitions. [2022-01-11 05:45:00,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 10 states have internal predecessors, (99), 0 states have call successors, (0), 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 05:45:00,897 INFO L276 IsEmpty]: Start isEmpty. Operand 5656 states and 9085 transitions. [2022-01-11 05:45:00,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-01-11 05:45:00,902 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:45:00,902 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, 1, 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 05:45:00,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-11 05:45:00,903 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:45:00,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:45:00,903 INFO L85 PathProgramCache]: Analyzing trace with hash 2139937043, now seen corresponding path program 1 times [2022-01-11 05:45:00,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:45:00,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601849700] [2022-01-11 05:45:00,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:45:00,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:45:00,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:45:00,962 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 05:45:00,962 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:45:00,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601849700] [2022-01-11 05:45:00,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601849700] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:45:00,964 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:45:00,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:45:00,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012114774] [2022-01-11 05:45:00,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:45:00,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:45:00,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:45:00,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:45:00,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:45:00,965 INFO L87 Difference]: Start difference. First operand 5656 states and 9085 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 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 05:45:02,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:45:02,394 INFO L93 Difference]: Finished difference Result 10401 states and 16544 transitions. [2022-01-11 05:45:02,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:45:02,394 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2022-01-11 05:45:02,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:45:02,403 INFO L225 Difference]: With dead ends: 10401 [2022-01-11 05:45:02,403 INFO L226 Difference]: Without dead ends: 7908 [2022-01-11 05:45:02,406 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 05:45:02,406 INFO L933 BasicCegarLoop]: 1339 mSDtfsCounter, 2200 mSDsluCounter, 1680 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2200 SdHoareTripleChecker+Valid, 3019 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:45:02,406 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2200 Valid, 3019 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:45:02,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7908 states. [2022-01-11 05:45:03,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7908 to 5656. [2022-01-11 05:45:03,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5656 states, 5653 states have (on average 1.6067574739076596) internal successors, (9083), 5655 states have internal predecessors, (9083), 0 states have call successors, (0), 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 05:45:03,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5656 states to 5656 states and 9083 transitions. [2022-01-11 05:45:03,372 INFO L78 Accepts]: Start accepts. Automaton has 5656 states and 9083 transitions. Word has length 100 [2022-01-11 05:45:03,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:45:03,372 INFO L470 AbstractCegarLoop]: Abstraction has 5656 states and 9083 transitions. [2022-01-11 05:45:03,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 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 05:45:03,372 INFO L276 IsEmpty]: Start isEmpty. Operand 5656 states and 9083 transitions. [2022-01-11 05:45:03,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-01-11 05:45:03,377 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:45:03,377 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, 1, 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 05:45:03,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-11 05:45:03,378 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:45:03,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:45:03,378 INFO L85 PathProgramCache]: Analyzing trace with hash 973240724, now seen corresponding path program 1 times [2022-01-11 05:45:03,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:45:03,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19717990] [2022-01-11 05:45:03,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:45:03,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:45:03,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:45:03,463 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 05:45:03,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:45:03,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19717990] [2022-01-11 05:45:03,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19717990] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:45:03,464 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:45:03,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 05:45:03,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821407018] [2022-01-11 05:45:03,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:45:03,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 05:45:03,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:45:03,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 05:45:03,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:45:03,465 INFO L87 Difference]: Start difference. First operand 5656 states and 9083 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 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 05:45:08,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:45:08,497 INFO L93 Difference]: Finished difference Result 25298 states and 39705 transitions. [2022-01-11 05:45:08,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-11 05:45:08,497 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2022-01-11 05:45:08,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:45:08,526 INFO L225 Difference]: With dead ends: 25298 [2022-01-11 05:45:08,526 INFO L226 Difference]: Without dead ends: 21994 [2022-01-11 05:45:08,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2022-01-11 05:45:08,533 INFO L933 BasicCegarLoop]: 3567 mSDtfsCounter, 5618 mSDsluCounter, 13263 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5618 SdHoareTripleChecker+Valid, 16830 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-11 05:45:08,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5618 Valid, 16830 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-11 05:45:08,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21994 states. [2022-01-11 05:45:10,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21994 to 8772. [2022-01-11 05:45:10,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8772 states, 8769 states have (on average 1.5948226707720379) internal successors, (13985), 8771 states have internal predecessors, (13985), 0 states have call successors, (0), 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 05:45:10,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8772 states to 8772 states and 13985 transitions. [2022-01-11 05:45:10,159 INFO L78 Accepts]: Start accepts. Automaton has 8772 states and 13985 transitions. Word has length 100 [2022-01-11 05:45:10,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:45:10,159 INFO L470 AbstractCegarLoop]: Abstraction has 8772 states and 13985 transitions. [2022-01-11 05:45:10,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 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 05:45:10,160 INFO L276 IsEmpty]: Start isEmpty. Operand 8772 states and 13985 transitions. [2022-01-11 05:45:10,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-01-11 05:45:10,167 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:45:10,167 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, 1, 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 05:45:10,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-11 05:45:10,167 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:45:10,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:45:10,168 INFO L85 PathProgramCache]: Analyzing trace with hash 473760563, now seen corresponding path program 1 times [2022-01-11 05:45:10,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:45:10,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257615096] [2022-01-11 05:45:10,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:45:10,168 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:45:10,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:45:10,245 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 05:45:10,245 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:45:10,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257615096] [2022-01-11 05:45:10,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257615096] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:45:10,246 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:45:10,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:45:10,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233964724] [2022-01-11 05:45:10,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:45:10,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:45:10,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:45:10,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:45:10,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:45:10,247 INFO L87 Difference]: Start difference. First operand 8772 states and 13985 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 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 05:45:12,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:45:12,301 INFO L93 Difference]: Finished difference Result 12995 states and 20686 transitions. [2022-01-11 05:45:12,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:45:12,301 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2022-01-11 05:45:12,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:45:12,312 INFO L225 Difference]: With dead ends: 12995 [2022-01-11 05:45:12,313 INFO L226 Difference]: Without dead ends: 10689 [2022-01-11 05:45:12,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 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 05:45:12,316 INFO L933 BasicCegarLoop]: 1342 mSDtfsCounter, 965 mSDsluCounter, 3157 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 965 SdHoareTripleChecker+Valid, 4499 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:45:12,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [965 Valid, 4499 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:45:12,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10689 states. [2022-01-11 05:45:14,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10689 to 10389. [2022-01-11 05:45:14,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10389 states, 10386 states have (on average 1.5962834585018293) internal successors, (16579), 10388 states have internal predecessors, (16579), 0 states have call successors, (0), 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 05:45:14,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10389 states to 10389 states and 16579 transitions. [2022-01-11 05:45:14,158 INFO L78 Accepts]: Start accepts. Automaton has 10389 states and 16579 transitions. Word has length 100 [2022-01-11 05:45:14,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:45:14,158 INFO L470 AbstractCegarLoop]: Abstraction has 10389 states and 16579 transitions. [2022-01-11 05:45:14,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 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 05:45:14,159 INFO L276 IsEmpty]: Start isEmpty. Operand 10389 states and 16579 transitions. [2022-01-11 05:45:14,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-01-11 05:45:14,169 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:45:14,169 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:45:14,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-11 05:45:14,169 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:45:14,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:45:14,170 INFO L85 PathProgramCache]: Analyzing trace with hash -647095403, now seen corresponding path program 1 times [2022-01-11 05:45:14,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:45:14,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999273171] [2022-01-11 05:45:14,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:45:14,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:45:14,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:45:14,272 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 05:45:14,272 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:45:14,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999273171] [2022-01-11 05:45:14,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999273171] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:45:14,272 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:45:14,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:45:14,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200559369] [2022-01-11 05:45:14,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:45:14,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:45:14,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:45:14,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:45:14,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:45:14,273 INFO L87 Difference]: Start difference. First operand 10389 states and 16579 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 0 states have call successors, (0), 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 05:45:20,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:45:20,370 INFO L93 Difference]: Finished difference Result 37201 states and 59245 transitions. [2022-01-11 05:45:20,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:45:20,371 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2022-01-11 05:45:20,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:45:20,413 INFO L225 Difference]: With dead ends: 37201 [2022-01-11 05:45:20,413 INFO L226 Difference]: Without dead ends: 29696 [2022-01-11 05:45:20,424 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 05:45:20,425 INFO L933 BasicCegarLoop]: 1895 mSDtfsCounter, 2933 mSDsluCounter, 4682 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2933 SdHoareTripleChecker+Valid, 6577 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:45:20,425 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2933 Valid, 6577 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:45:20,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29696 states. [2022-01-11 05:45:23,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29696 to 18676. [2022-01-11 05:45:23,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18676 states, 18673 states have (on average 1.5894071654260162) internal successors, (29679), 18675 states have internal predecessors, (29679), 0 states have call successors, (0), 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 05:45:23,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18676 states to 18676 states and 29679 transitions. [2022-01-11 05:45:23,998 INFO L78 Accepts]: Start accepts. Automaton has 18676 states and 29679 transitions. Word has length 120 [2022-01-11 05:45:23,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:45:23,999 INFO L470 AbstractCegarLoop]: Abstraction has 18676 states and 29679 transitions. [2022-01-11 05:45:23,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 0 states have call successors, (0), 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 05:45:23,999 INFO L276 IsEmpty]: Start isEmpty. Operand 18676 states and 29679 transitions. [2022-01-11 05:45:24,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-01-11 05:45:24,018 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:45:24,018 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:45:24,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-11 05:45:24,019 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:45:24,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:45:24,019 INFO L85 PathProgramCache]: Analyzing trace with hash -667563499, now seen corresponding path program 1 times [2022-01-11 05:45:24,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:45:24,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132265996] [2022-01-11 05:45:24,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:45:24,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:45:24,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:45:24,109 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 05:45:24,109 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:45:24,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132265996] [2022-01-11 05:45:24,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132265996] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:45:24,109 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:45:24,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:45:24,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927836326] [2022-01-11 05:45:24,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:45:24,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:45:24,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:45:24,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:45:24,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:45:24,110 INFO L87 Difference]: Start difference. First operand 18676 states and 29679 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)