/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec1_product03.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 12:03:54,196 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 12:03:54,198 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 12:03:54,271 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 12:03:54,272 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 12:03:54,273 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 12:03:54,274 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 12:03:54,276 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 12:03:54,290 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 12:03:54,291 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 12:03:54,291 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 12:03:54,292 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 12:03:54,292 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 12:03:54,293 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 12:03:54,294 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 12:03:54,308 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 12:03:54,308 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 12:03:54,309 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 12:03:54,310 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 12:03:54,311 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 12:03:54,312 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 12:03:54,313 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 12:03:54,313 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 12:03:54,314 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 12:03:54,316 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 12:03:54,316 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 12:03:54,316 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 12:03:54,317 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 12:03:54,317 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 12:03:54,317 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 12:03:54,318 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 12:03:54,318 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 12:03:54,319 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 12:03:54,319 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 12:03:54,320 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 12:03:54,320 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 12:03:54,321 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 12:03:54,321 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 12:03:54,321 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 12:03:54,321 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 12:03:54,322 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 12:03:54,324 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 12:03:54,347 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 12:03:54,348 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 12:03:54,348 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 12:03:54,348 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 12:03:54,349 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 12:03:54,349 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 12:03:54,349 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 12:03:54,349 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 12:03:54,349 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 12:03:54,349 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 12:03:54,349 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 12:03:54,349 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 12:03:54,349 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 12:03:54,350 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 12:03:54,350 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 12:03:54,350 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 12:03:54,350 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 12:03:54,350 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 12:03:54,350 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 12:03:54,350 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 12:03:54,350 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 12:03:54,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:03:54,351 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 12:03:54,351 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 12:03:54,351 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 12:03:54,351 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 12:03:54,351 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 12:03:54,351 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 12:03:54,351 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 12:03:54,351 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 12:03:54,351 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 12:03:54,351 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 12:03:54,352 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 12:03:54,352 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 12:03:54,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 12:03:54,556 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 12:03:54,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 12:03:54,560 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 12:03:54,561 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 12:03:54,562 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec1_product03.cil.c [2022-01-10 12:03:54,625 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd8ee4010/6e3df75975dd44ffa025ac974566cec2/FLAG7c1468c81 [2022-01-10 12:03:55,061 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 12:03:55,061 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product03.cil.c [2022-01-10 12:03:55,074 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd8ee4010/6e3df75975dd44ffa025ac974566cec2/FLAG7c1468c81 [2022-01-10 12:03:55,085 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd8ee4010/6e3df75975dd44ffa025ac974566cec2 [2022-01-10 12:03:55,088 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 12:03:55,089 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 12:03:55,090 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 12:03:55,090 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 12:03:55,092 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 12:03:55,093 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:03:55" (1/1) ... [2022-01-10 12:03:55,093 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@395e3b72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:03:55, skipping insertion in model container [2022-01-10 12:03:55,093 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:03:55" (1/1) ... [2022-01-10 12:03:55,098 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 12:03:55,155 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:03:55,451 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/elevator_spec1_product03.cil.c[49188,49201] [2022-01-10 12:03:55,499 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:03:55,514 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 12:03:55,531 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:03:55,620 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/elevator_spec1_product03.cil.c[49188,49201] [2022-01-10 12:03:55,648 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:03:55,651 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 12:03:55,695 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/elevator_spec1_product03.cil.c[49188,49201] [2022-01-10 12:03:55,705 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:03:55,732 INFO L208 MainTranslator]: Completed translation [2022-01-10 12:03:55,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:03:55 WrapperNode [2022-01-10 12:03:55,732 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 12:03:55,733 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 12:03:55,733 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 12:03:55,733 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 12:03:55,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:03:55" (1/1) ... [2022-01-10 12:03:55,777 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:03:55" (1/1) ... [2022-01-10 12:03:55,890 INFO L137 Inliner]: procedures = 94, calls = 337, calls flagged for inlining = 190, calls inlined = 252, statements flattened = 8087 [2022-01-10 12:03:55,891 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 12:03:55,892 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 12:03:55,892 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 12:03:55,892 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 12:03:55,898 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:03:55" (1/1) ... [2022-01-10 12:03:55,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:03:55" (1/1) ... [2022-01-10 12:03:55,916 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:03:55" (1/1) ... [2022-01-10 12:03:55,916 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:03:55" (1/1) ... [2022-01-10 12:03:55,963 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:03:55" (1/1) ... [2022-01-10 12:03:56,000 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:03:55" (1/1) ... [2022-01-10 12:03:56,016 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:03:55" (1/1) ... [2022-01-10 12:03:56,040 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 12:03:56,042 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 12:03:56,042 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 12:03:56,043 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 12:03:56,043 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:03:55" (1/1) ... [2022-01-10 12:03:56,048 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:03:56,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 12:03:56,065 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 12:03:56,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 12:03:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 12:03:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 12:03:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 12:03:56,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 12:03:56,231 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 12:03:56,232 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 12:03:59,362 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 12:03:59,395 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 12:03:59,396 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 12:03:59,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:03:59 BoogieIcfgContainer [2022-01-10 12:03:59,400 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 12:03:59,401 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 12:03:59,401 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 12:03:59,402 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 12:03:59,404 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:03:59" (1/1) ... [2022-01-10 12:03:59,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:03:59 BasicIcfg [2022-01-10 12:03:59,958 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 12:03:59,960 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 12:03:59,960 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 12:03:59,962 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 12:03:59,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:03:55" (1/4) ... [2022-01-10 12:03:59,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c7aec4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:03:59, skipping insertion in model container [2022-01-10 12:03:59,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:03:55" (2/4) ... [2022-01-10 12:03:59,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c7aec4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:03:59, skipping insertion in model container [2022-01-10 12:03:59,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:03:59" (3/4) ... [2022-01-10 12:03:59,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c7aec4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 12:03:59, skipping insertion in model container [2022-01-10 12:03:59,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:03:59" (4/4) ... [2022-01-10 12:03:59,964 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product03.cil.cTransformedIcfg [2022-01-10 12:03:59,969 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 12:03:59,969 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-01-10 12:04:00,028 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 12:04:00,032 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 12:04:00,032 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-10 12:04:00,077 INFO L276 IsEmpty]: Start isEmpty. Operand has 2367 states, 2361 states have (on average 1.8729351969504446) internal successors, (4422), 2366 states have internal predecessors, (4422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:00,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-10 12:04:00,090 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:04:00,091 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] [2022-01-10 12:04:00,091 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:04:00,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:04:00,095 INFO L85 PathProgramCache]: Analyzing trace with hash 555520722, now seen corresponding path program 1 times [2022-01-10 12:04:00,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:04:00,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142257665] [2022-01-10 12:04:00,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:04:00,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:04:00,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:04:00,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:04:00,468 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:04:00,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142257665] [2022-01-10 12:04:00,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142257665] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:04:00,469 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:04:00,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:04:00,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165015712] [2022-01-10 12:04:00,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:04:00,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:04:00,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:04:00,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:04:00,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:04:00,514 INFO L87 Difference]: Start difference. First operand has 2367 states, 2361 states have (on average 1.8729351969504446) internal successors, (4422), 2366 states have internal predecessors, (4422), 0 states have call successors, (0), 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 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:00,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:04:00,730 INFO L93 Difference]: Finished difference Result 7006 states and 13106 transitions. [2022-01-10 12:04:00,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:04:00,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-01-10 12:04:00,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:04:00,765 INFO L225 Difference]: With dead ends: 7006 [2022-01-10 12:04:00,766 INFO L226 Difference]: Without dead ends: 4641 [2022-01-10 12:04:00,777 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:04:00,786 INFO L933 BasicCegarLoop]: 8679 mSDtfsCounter, 4383 mSDsluCounter, 4289 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4383 SdHoareTripleChecker+Valid, 12968 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:04:00,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4383 Valid, 12968 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:04:00,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4641 states. [2022-01-10 12:04:00,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4641 to 2356. [2022-01-10 12:04:00,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2356 states, 2351 states have (on average 1.8706933219906423) internal successors, (4398), 2355 states have internal predecessors, (4398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:00,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2356 states to 2356 states and 4398 transitions. [2022-01-10 12:04:00,917 INFO L78 Accepts]: Start accepts. Automaton has 2356 states and 4398 transitions. Word has length 64 [2022-01-10 12:04:00,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:04:00,918 INFO L470 AbstractCegarLoop]: Abstraction has 2356 states and 4398 transitions. [2022-01-10 12:04:00,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:00,918 INFO L276 IsEmpty]: Start isEmpty. Operand 2356 states and 4398 transitions. [2022-01-10 12:04:00,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-01-10 12:04:00,922 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:04:00,922 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:04:00,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 12:04:00,923 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:04:00,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:04:00,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1652006052, now seen corresponding path program 1 times [2022-01-10 12:04:00,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:04:00,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676021257] [2022-01-10 12:04:00,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:04:00,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:04:00,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:04:01,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:04:01,016 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:04:01,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676021257] [2022-01-10 12:04:01,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676021257] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:04:01,016 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:04:01,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:04:01,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791888679] [2022-01-10 12:04:01,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:04:01,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:04:01,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:04:01,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:04:01,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:04:01,019 INFO L87 Difference]: Start difference. First operand 2356 states and 4398 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:01,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:04:01,239 INFO L93 Difference]: Finished difference Result 6911 states and 12914 transitions. [2022-01-10 12:04:01,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:04:01,255 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-01-10 12:04:01,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:04:01,271 INFO L225 Difference]: With dead ends: 6911 [2022-01-10 12:04:01,271 INFO L226 Difference]: Without dead ends: 4605 [2022-01-10 12:04:01,276 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:04:01,279 INFO L933 BasicCegarLoop]: 8542 mSDtfsCounter, 4285 mSDsluCounter, 4229 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4285 SdHoareTripleChecker+Valid, 12771 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:04:01,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4285 Valid, 12771 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:04:01,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4605 states. [2022-01-10 12:04:01,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4605 to 2356. [2022-01-10 12:04:01,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2356 states, 2351 states have (on average 1.8600595491280307) internal successors, (4373), 2355 states have internal predecessors, (4373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:01,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2356 states to 2356 states and 4373 transitions. [2022-01-10 12:04:01,382 INFO L78 Accepts]: Start accepts. Automaton has 2356 states and 4373 transitions. Word has length 71 [2022-01-10 12:04:01,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:04:01,383 INFO L470 AbstractCegarLoop]: Abstraction has 2356 states and 4373 transitions. [2022-01-10 12:04:01,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:01,384 INFO L276 IsEmpty]: Start isEmpty. Operand 2356 states and 4373 transitions. [2022-01-10 12:04:01,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-01-10 12:04:01,387 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:04:01,388 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] [2022-01-10 12:04:01,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 12:04:01,388 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:04:01,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:04:01,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1306038373, now seen corresponding path program 1 times [2022-01-10 12:04:01,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:04:01,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113610573] [2022-01-10 12:04:01,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:04:01,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:04:01,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:04:01,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:04:01,473 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:04:01,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113610573] [2022-01-10 12:04:01,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113610573] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:04:01,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:04:01,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:04:01,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539354821] [2022-01-10 12:04:01,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:04:01,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:04:01,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:04:01,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:04:01,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:04:01,475 INFO L87 Difference]: Start difference. First operand 2356 states and 4373 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:01,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:04:01,556 INFO L93 Difference]: Finished difference Result 4641 states and 8648 transitions. [2022-01-10 12:04:01,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:04:01,557 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2022-01-10 12:04:01,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:04:01,564 INFO L225 Difference]: With dead ends: 4641 [2022-01-10 12:04:01,564 INFO L226 Difference]: Without dead ends: 2356 [2022-01-10 12:04:01,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:04:01,574 INFO L933 BasicCegarLoop]: 4354 mSDtfsCounter, 4362 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4362 SdHoareTripleChecker+Valid, 4361 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:04:01,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4362 Valid, 4361 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:04:01,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2356 states. [2022-01-10 12:04:01,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2356 to 2356. [2022-01-10 12:04:01,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2356 states, 2351 states have (on average 1.8592088472990216) internal successors, (4371), 2355 states have internal predecessors, (4371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:01,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2356 states to 2356 states and 4371 transitions. [2022-01-10 12:04:01,621 INFO L78 Accepts]: Start accepts. Automaton has 2356 states and 4371 transitions. Word has length 74 [2022-01-10 12:04:01,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:04:01,623 INFO L470 AbstractCegarLoop]: Abstraction has 2356 states and 4371 transitions. [2022-01-10 12:04:01,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:01,623 INFO L276 IsEmpty]: Start isEmpty. Operand 2356 states and 4371 transitions. [2022-01-10 12:04:01,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-01-10 12:04:01,627 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:04:01,627 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] [2022-01-10 12:04:01,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 12:04:01,628 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:04:01,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:04:01,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1493446773, now seen corresponding path program 1 times [2022-01-10 12:04:01,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:04:01,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194423260] [2022-01-10 12:04:01,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:04:01,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:04:01,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:04:01,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:04:01,711 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:04:01,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194423260] [2022-01-10 12:04:01,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194423260] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:04:01,711 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:04:01,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:04:01,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531392441] [2022-01-10 12:04:01,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:04:01,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:04:01,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:04:01,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:04:01,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:04:01,713 INFO L87 Difference]: Start difference. First operand 2356 states and 4371 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:01,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:04:01,845 INFO L93 Difference]: Finished difference Result 4605 states and 8575 transitions. [2022-01-10 12:04:01,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:04:01,846 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2022-01-10 12:04:01,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:04:01,854 INFO L225 Difference]: With dead ends: 4605 [2022-01-10 12:04:01,854 INFO L226 Difference]: Without dead ends: 2356 [2022-01-10 12:04:01,858 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:04:01,865 INFO L933 BasicCegarLoop]: 4276 mSDtfsCounter, 4343 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4343 SdHoareTripleChecker+Valid, 4291 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:04:01,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4343 Valid, 4291 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:04:01,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2356 states. [2022-01-10 12:04:01,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2356 to 2356. [2022-01-10 12:04:01,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2356 states, 2351 states have (on average 1.854955338153977) internal successors, (4361), 2355 states have internal predecessors, (4361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:01,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2356 states to 2356 states and 4361 transitions. [2022-01-10 12:04:01,921 INFO L78 Accepts]: Start accepts. Automaton has 2356 states and 4361 transitions. Word has length 76 [2022-01-10 12:04:01,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:04:01,921 INFO L470 AbstractCegarLoop]: Abstraction has 2356 states and 4361 transitions. [2022-01-10 12:04:01,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:01,921 INFO L276 IsEmpty]: Start isEmpty. Operand 2356 states and 4361 transitions. [2022-01-10 12:04:01,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-10 12:04:01,923 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:04:01,923 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:04:01,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 12:04:01,924 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:04:01,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:04:01,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1444960385, now seen corresponding path program 1 times [2022-01-10 12:04:01,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:04:01,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479945512] [2022-01-10 12:04:01,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:04:01,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:04:01,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:04:02,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:04:02,010 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:04:02,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479945512] [2022-01-10 12:04:02,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479945512] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:04:02,010 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:04:02,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:04:02,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611025687] [2022-01-10 12:04:02,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:04:02,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:04:02,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:04:02,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:04:02,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:04:02,011 INFO L87 Difference]: Start difference. First operand 2356 states and 4361 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:02,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:04:02,122 INFO L93 Difference]: Finished difference Result 5808 states and 10806 transitions. [2022-01-10 12:04:02,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:04:02,123 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2022-01-10 12:04:02,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:04:02,139 INFO L225 Difference]: With dead ends: 5808 [2022-01-10 12:04:02,139 INFO L226 Difference]: Without dead ends: 4638 [2022-01-10 12:04:02,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:04:02,143 INFO L933 BasicCegarLoop]: 6500 mSDtfsCounter, 4339 mSDsluCounter, 4269 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4339 SdHoareTripleChecker+Valid, 10769 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:04:02,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4339 Valid, 10769 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:04:02,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4638 states. [2022-01-10 12:04:02,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4638 to 4638. [2022-01-10 12:04:02,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4638 states, 4633 states have (on average 1.8625080941074899) internal successors, (8629), 4637 states have internal predecessors, (8629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:02,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4638 states to 4638 states and 8629 transitions. [2022-01-10 12:04:02,242 INFO L78 Accepts]: Start accepts. Automaton has 4638 states and 8629 transitions. Word has length 78 [2022-01-10 12:04:02,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:04:02,246 INFO L470 AbstractCegarLoop]: Abstraction has 4638 states and 8629 transitions. [2022-01-10 12:04:02,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:02,246 INFO L276 IsEmpty]: Start isEmpty. Operand 4638 states and 8629 transitions. [2022-01-10 12:04:02,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-01-10 12:04:02,251 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:04:02,251 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] [2022-01-10 12:04:02,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 12:04:02,252 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:04:02,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:04:02,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1844112699, now seen corresponding path program 1 times [2022-01-10 12:04:02,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:04:02,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888954919] [2022-01-10 12:04:02,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:04:02,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:04:02,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:04:02,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:04:02,332 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:04:02,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888954919] [2022-01-10 12:04:02,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888954919] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:04:02,332 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:04:02,332 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:04:02,332 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616277423] [2022-01-10 12:04:02,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:04:02,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:04:02,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:04:02,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:04:02,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:04:02,334 INFO L87 Difference]: Start difference. First operand 4638 states and 8629 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:02,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:04:02,467 INFO L93 Difference]: Finished difference Result 11460 states and 21386 transitions. [2022-01-10 12:04:02,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:04:02,469 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2022-01-10 12:04:02,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:04:02,505 INFO L225 Difference]: With dead ends: 11460 [2022-01-10 12:04:02,505 INFO L226 Difference]: Without dead ends: 9144 [2022-01-10 12:04:02,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:04:02,514 INFO L933 BasicCegarLoop]: 4358 mSDtfsCounter, 4277 mSDsluCounter, 4272 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4277 SdHoareTripleChecker+Valid, 8630 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:04:02,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4277 Valid, 8630 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:04:02,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9144 states. [2022-01-10 12:04:02,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9144 to 9142. [2022-01-10 12:04:02,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9142 states, 9137 states have (on average 1.8674619678231368) internal successors, (17063), 9141 states have internal predecessors, (17063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:02,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9142 states to 9142 states and 17063 transitions. [2022-01-10 12:04:02,773 INFO L78 Accepts]: Start accepts. Automaton has 9142 states and 17063 transitions. Word has length 79 [2022-01-10 12:04:02,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:04:02,774 INFO L470 AbstractCegarLoop]: Abstraction has 9142 states and 17063 transitions. [2022-01-10 12:04:02,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:02,774 INFO L276 IsEmpty]: Start isEmpty. Operand 9142 states and 17063 transitions. [2022-01-10 12:04:02,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-01-10 12:04:02,782 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:04:02,783 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] [2022-01-10 12:04:02,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 12:04:02,783 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:04:02,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:04:02,783 INFO L85 PathProgramCache]: Analyzing trace with hash 724575394, now seen corresponding path program 1 times [2022-01-10 12:04:02,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:04:02,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303256823] [2022-01-10 12:04:02,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:04:02,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:04:02,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:04:02,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:04:02,876 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:04:02,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303256823] [2022-01-10 12:04:02,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303256823] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:04:02,876 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:04:02,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:04:02,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574145203] [2022-01-10 12:04:02,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:04:02,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:04:02,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:04:02,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:04:02,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:04:02,887 INFO L87 Difference]: Start difference. First operand 9142 states and 17063 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:03,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:04:03,650 INFO L93 Difference]: Finished difference Result 54068 states and 101173 transitions. [2022-01-10 12:04:03,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 12:04:03,651 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2022-01-10 12:04:03,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:04:03,753 INFO L225 Difference]: With dead ends: 54068 [2022-01-10 12:04:03,753 INFO L226 Difference]: Without dead ends: 44955 [2022-01-10 12:04:03,776 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-10 12:04:03,777 INFO L933 BasicCegarLoop]: 16991 mSDtfsCounter, 12784 mSDsluCounter, 21248 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12784 SdHoareTripleChecker+Valid, 38239 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:04:03,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12784 Valid, 38239 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:04:03,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44955 states. [2022-01-10 12:04:04,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44955 to 9130. [2022-01-10 12:04:04,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9130 states, 9125 states have (on average 1.868164383561644) internal successors, (17047), 9129 states have internal predecessors, (17047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:04,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9130 states to 9130 states and 17047 transitions. [2022-01-10 12:04:04,326 INFO L78 Accepts]: Start accepts. Automaton has 9130 states and 17047 transitions. Word has length 79 [2022-01-10 12:04:04,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:04:04,327 INFO L470 AbstractCegarLoop]: Abstraction has 9130 states and 17047 transitions. [2022-01-10 12:04:04,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:04,327 INFO L276 IsEmpty]: Start isEmpty. Operand 9130 states and 17047 transitions. [2022-01-10 12:04:04,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-10 12:04:04,333 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:04:04,333 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] [2022-01-10 12:04:04,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 12:04:04,334 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:04:04,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:04:04,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1382796616, now seen corresponding path program 1 times [2022-01-10 12:04:04,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:04:04,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537948362] [2022-01-10 12:04:04,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:04:04,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:04:04,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:04:04,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:04:04,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:04:04,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537948362] [2022-01-10 12:04:04,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537948362] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:04:04,417 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:04:04,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 12:04:04,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209654980] [2022-01-10 12:04:04,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:04:04,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 12:04:04,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:04:04,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 12:04:04,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-10 12:04:04,418 INFO L87 Difference]: Start difference. First operand 9130 states and 17047 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:05,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:04:05,532 INFO L93 Difference]: Finished difference Result 45030 states and 84269 transitions. [2022-01-10 12:04:05,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 12:04:05,532 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2022-01-10 12:04:05,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:04:05,615 INFO L225 Difference]: With dead ends: 45030 [2022-01-10 12:04:05,615 INFO L226 Difference]: Without dead ends: 35929 [2022-01-10 12:04:05,633 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-10 12:04:05,634 INFO L933 BasicCegarLoop]: 16881 mSDtfsCounter, 21352 mSDsluCounter, 16866 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21352 SdHoareTripleChecker+Valid, 33747 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:04:05,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21352 Valid, 33747 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:04:05,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35929 states. [2022-01-10 12:04:06,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35929 to 9130. [2022-01-10 12:04:06,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9130 states, 9125 states have (on average 1.8663013698630138) internal successors, (17030), 9129 states have internal predecessors, (17030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:06,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9130 states to 9130 states and 17030 transitions. [2022-01-10 12:04:06,141 INFO L78 Accepts]: Start accepts. Automaton has 9130 states and 17030 transitions. Word has length 81 [2022-01-10 12:04:06,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:04:06,141 INFO L470 AbstractCegarLoop]: Abstraction has 9130 states and 17030 transitions. [2022-01-10 12:04:06,141 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:06,141 INFO L276 IsEmpty]: Start isEmpty. Operand 9130 states and 17030 transitions. [2022-01-10 12:04:06,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-10 12:04:06,147 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:04:06,147 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] [2022-01-10 12:04:06,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 12:04:06,147 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:04:06,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:04:06,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1483708583, now seen corresponding path program 1 times [2022-01-10 12:04:06,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:04:06,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898166747] [2022-01-10 12:04:06,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:04:06,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:04:06,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:04:06,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:04:06,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:04:06,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898166747] [2022-01-10 12:04:06,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898166747] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:04:06,193 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:04:06,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:04:06,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142065441] [2022-01-10 12:04:06,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:04:06,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 12:04:06,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:04:06,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 12:04:06,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:04:06,194 INFO L87 Difference]: Start difference. First operand 9130 states and 17030 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:06,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:04:06,871 INFO L93 Difference]: Finished difference Result 36232 states and 67701 transitions. [2022-01-10 12:04:06,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:04:06,872 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2022-01-10 12:04:06,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:04:06,925 INFO L225 Difference]: With dead ends: 36232 [2022-01-10 12:04:06,925 INFO L226 Difference]: Without dead ends: 27125 [2022-01-10 12:04:06,941 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 [2022-01-10 12:04:06,946 INFO L933 BasicCegarLoop]: 4346 mSDtfsCounter, 12821 mSDsluCounter, 12777 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12821 SdHoareTripleChecker+Valid, 17123 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:04:06,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12821 Valid, 17123 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:04:06,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27125 states. [2022-01-10 12:04:07,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27125 to 9138. [2022-01-10 12:04:07,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9138 states, 9133 states have (on average 1.8652140589072594) internal successors, (17035), 9137 states have internal predecessors, (17035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:07,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9138 states to 9138 states and 17035 transitions. [2022-01-10 12:04:07,260 INFO L78 Accepts]: Start accepts. Automaton has 9138 states and 17035 transitions. Word has length 81 [2022-01-10 12:04:07,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:04:07,261 INFO L470 AbstractCegarLoop]: Abstraction has 9138 states and 17035 transitions. [2022-01-10 12:04:07,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:07,261 INFO L276 IsEmpty]: Start isEmpty. Operand 9138 states and 17035 transitions. [2022-01-10 12:04:07,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-01-10 12:04:07,266 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:04:07,266 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] [2022-01-10 12:04:07,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 12:04:07,266 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:04:07,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:04:07,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1629954071, now seen corresponding path program 1 times [2022-01-10 12:04:07,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:04:07,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176785998] [2022-01-10 12:04:07,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:04:07,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:04:07,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:04:07,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:04:07,347 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:04:07,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176785998] [2022-01-10 12:04:07,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176785998] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:04:07,347 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:04:07,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 12:04:07,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859030910] [2022-01-10 12:04:07,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:04:07,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 12:04:07,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:04:07,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 12:04:07,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-10 12:04:07,348 INFO L87 Difference]: Start difference. First operand 9138 states and 17035 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:08,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:04:08,364 INFO L93 Difference]: Finished difference Result 45117 states and 84345 transitions. [2022-01-10 12:04:08,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 12:04:08,365 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2022-01-10 12:04:08,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:04:08,424 INFO L225 Difference]: With dead ends: 45117 [2022-01-10 12:04:08,425 INFO L226 Difference]: Without dead ends: 35995 [2022-01-10 12:04:08,439 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-10 12:04:08,439 INFO L933 BasicCegarLoop]: 16950 mSDtfsCounter, 17046 mSDsluCounter, 16956 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17046 SdHoareTripleChecker+Valid, 33906 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:04:08,439 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17046 Valid, 33906 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:04:08,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35995 states. [2022-01-10 12:04:08,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35995 to 9130. [2022-01-10 12:04:08,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9130 states, 9125 states have (on average 1.8654246575342466) internal successors, (17022), 9129 states have internal predecessors, (17022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:08,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9130 states to 9130 states and 17022 transitions. [2022-01-10 12:04:08,957 INFO L78 Accepts]: Start accepts. Automaton has 9130 states and 17022 transitions. Word has length 82 [2022-01-10 12:04:08,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:04:08,957 INFO L470 AbstractCegarLoop]: Abstraction has 9130 states and 17022 transitions. [2022-01-10 12:04:08,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:08,957 INFO L276 IsEmpty]: Start isEmpty. Operand 9130 states and 17022 transitions. [2022-01-10 12:04:08,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-10 12:04:08,962 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:04:08,963 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] [2022-01-10 12:04:08,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 12:04:08,963 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:04:08,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:04:08,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1212007185, now seen corresponding path program 1 times [2022-01-10 12:04:08,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:04:08,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557428933] [2022-01-10 12:04:08,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:04:08,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:04:08,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:04:09,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:04:09,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:04:09,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557428933] [2022-01-10 12:04:09,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557428933] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:04:09,030 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:04:09,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:04:09,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938256993] [2022-01-10 12:04:09,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:04:09,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:04:09,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:04:09,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:04:09,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:04:09,031 INFO L87 Difference]: Start difference. First operand 9130 states and 17022 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:09,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:04:09,964 INFO L93 Difference]: Finished difference Result 36037 states and 67372 transitions. [2022-01-10 12:04:09,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 12:04:09,965 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2022-01-10 12:04:09,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:04:10,014 INFO L225 Difference]: With dead ends: 36037 [2022-01-10 12:04:10,015 INFO L226 Difference]: Without dead ends: 26954 [2022-01-10 12:04:10,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-10 12:04:10,030 INFO L933 BasicCegarLoop]: 4284 mSDtfsCounter, 21258 mSDsluCounter, 12614 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21258 SdHoareTripleChecker+Valid, 16898 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:04:10,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21258 Valid, 16898 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:04:10,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26954 states. [2022-01-10 12:04:10,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26954 to 9156. [2022-01-10 12:04:10,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9156 states, 9151 states have (on average 1.8642771281827122) internal successors, (17060), 9155 states have internal predecessors, (17060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:10,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9156 states to 9156 states and 17060 transitions. [2022-01-10 12:04:10,399 INFO L78 Accepts]: Start accepts. Automaton has 9156 states and 17060 transitions. Word has length 83 [2022-01-10 12:04:10,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:04:10,399 INFO L470 AbstractCegarLoop]: Abstraction has 9156 states and 17060 transitions. [2022-01-10 12:04:10,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:10,399 INFO L276 IsEmpty]: Start isEmpty. Operand 9156 states and 17060 transitions. [2022-01-10 12:04:10,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-01-10 12:04:10,404 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:04:10,404 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] [2022-01-10 12:04:10,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 12:04:10,404 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:04:10,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:04:10,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1841199263, now seen corresponding path program 1 times [2022-01-10 12:04:10,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:04:10,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256634948] [2022-01-10 12:04:10,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:04:10,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:04:10,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:04:10,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:04:10,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:04:10,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256634948] [2022-01-10 12:04:10,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256634948] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:04:10,466 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:04:10,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:04:10,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403811866] [2022-01-10 12:04:10,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:04:10,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 12:04:10,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:04:10,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 12:04:10,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:04:10,467 INFO L87 Difference]: Start difference. First operand 9156 states and 17060 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:10,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:04:10,927 INFO L93 Difference]: Finished difference Result 20368 states and 38041 transitions. [2022-01-10 12:04:10,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 12:04:10,928 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-01-10 12:04:10,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:04:10,951 INFO L225 Difference]: With dead ends: 20368 [2022-01-10 12:04:10,952 INFO L226 Difference]: Without dead ends: 13523 [2022-01-10 12:04:10,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:04:10,963 INFO L933 BasicCegarLoop]: 4277 mSDtfsCounter, 8464 mSDsluCounter, 4288 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8464 SdHoareTripleChecker+Valid, 8565 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:04:10,963 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8464 Valid, 8565 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:04:10,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13523 states. [2022-01-10 12:04:11,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13523 to 9076. [2022-01-10 12:04:11,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9076 states, 9071 states have (on average 1.8663873883805535) internal successors, (16930), 9075 states have internal predecessors, (16930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:11,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9076 states to 9076 states and 16930 transitions. [2022-01-10 12:04:11,335 INFO L78 Accepts]: Start accepts. Automaton has 9076 states and 16930 transitions. Word has length 85 [2022-01-10 12:04:11,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:04:11,335 INFO L470 AbstractCegarLoop]: Abstraction has 9076 states and 16930 transitions. [2022-01-10 12:04:11,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:11,335 INFO L276 IsEmpty]: Start isEmpty. Operand 9076 states and 16930 transitions. [2022-01-10 12:04:11,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-10 12:04:11,340 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:04:11,340 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] [2022-01-10 12:04:11,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 12:04:11,341 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:04:11,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:04:11,341 INFO L85 PathProgramCache]: Analyzing trace with hash 111496493, now seen corresponding path program 1 times [2022-01-10 12:04:11,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:04:11,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192254416] [2022-01-10 12:04:11,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:04:11,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:04:11,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:04:11,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:04:11,398 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:04:11,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192254416] [2022-01-10 12:04:11,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192254416] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:04:11,398 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:04:11,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:04:11,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830356966] [2022-01-10 12:04:11,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:04:11,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:04:11,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:04:11,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:04:11,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:04:11,399 INFO L87 Difference]: Start difference. First operand 9076 states and 16930 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:11,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:04:11,583 INFO L93 Difference]: Finished difference Result 13559 states and 25314 transitions. [2022-01-10 12:04:11,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:04:11,584 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-01-10 12:04:11,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:04:11,590 INFO L225 Difference]: With dead ends: 13559 [2022-01-10 12:04:11,591 INFO L226 Difference]: Without dead ends: 4584 [2022-01-10 12:04:11,597 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:04:11,597 INFO L933 BasicCegarLoop]: 4284 mSDtfsCounter, 8481 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8481 SdHoareTripleChecker+Valid, 4360 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:04:11,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8481 Valid, 4360 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:04:11,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4584 states. [2022-01-10 12:04:11,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4584 to 4584. [2022-01-10 12:04:11,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4584 states, 4580 states have (on average 1.8609170305676856) internal successors, (8523), 4583 states have internal predecessors, (8523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:11,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4584 states to 4584 states and 8523 transitions. [2022-01-10 12:04:11,757 INFO L78 Accepts]: Start accepts. Automaton has 4584 states and 8523 transitions. Word has length 86 [2022-01-10 12:04:11,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:04:11,757 INFO L470 AbstractCegarLoop]: Abstraction has 4584 states and 8523 transitions. [2022-01-10 12:04:11,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:11,757 INFO L276 IsEmpty]: Start isEmpty. Operand 4584 states and 8523 transitions. [2022-01-10 12:04:11,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-10 12:04:11,759 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:04:11,760 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] [2022-01-10 12:04:11,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 12:04:11,760 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:04:11,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:04:11,760 INFO L85 PathProgramCache]: Analyzing trace with hash -986124759, now seen corresponding path program 1 times [2022-01-10 12:04:11,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:04:11,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696962102] [2022-01-10 12:04:11,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:04:11,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:04:11,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:04:11,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:04:11,813 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:04:11,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696962102] [2022-01-10 12:04:11,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696962102] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:04:11,813 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:04:11,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:04:11,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760320099] [2022-01-10 12:04:11,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:04:11,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 12:04:11,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:04:11,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 12:04:11,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:04:11,814 INFO L87 Difference]: Start difference. First operand 4584 states and 8523 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:11,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:04:11,988 INFO L93 Difference]: Finished difference Result 9055 states and 16889 transitions. [2022-01-10 12:04:11,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 12:04:11,989 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2022-01-10 12:04:11,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:04:11,996 INFO L225 Difference]: With dead ends: 9055 [2022-01-10 12:04:11,996 INFO L226 Difference]: Without dead ends: 4572 [2022-01-10 12:04:12,000 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 [2022-01-10 12:04:12,000 INFO L933 BasicCegarLoop]: 4267 mSDtfsCounter, 8454 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8454 SdHoareTripleChecker+Valid, 4356 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:04:12,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8454 Valid, 4356 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:04:12,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4572 states. [2022-01-10 12:04:12,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4572 to 4572. [2022-01-10 12:04:12,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4572 states, 4568 states have (on average 1.8614273204903677) internal successors, (8503), 4571 states have internal predecessors, (8503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:12,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4572 states to 4572 states and 8503 transitions. [2022-01-10 12:04:12,169 INFO L78 Accepts]: Start accepts. Automaton has 4572 states and 8503 transitions. Word has length 88 [2022-01-10 12:04:12,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:04:12,170 INFO L470 AbstractCegarLoop]: Abstraction has 4572 states and 8503 transitions. [2022-01-10 12:04:12,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:12,170 INFO L276 IsEmpty]: Start isEmpty. Operand 4572 states and 8503 transitions. [2022-01-10 12:04:12,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-10 12:04:12,172 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:04:12,172 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] [2022-01-10 12:04:12,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 12:04:12,173 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:04:12,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:04:12,173 INFO L85 PathProgramCache]: Analyzing trace with hash 2127048005, now seen corresponding path program 1 times [2022-01-10 12:04:12,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:04:12,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902243128] [2022-01-10 12:04:12,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:04:12,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:04:12,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:04:12,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:04:12,258 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:04:12,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902243128] [2022-01-10 12:04:12,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902243128] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:04:12,258 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:04:12,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 12:04:12,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495793369] [2022-01-10 12:04:12,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:04:12,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 12:04:12,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:04:12,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 12:04:12,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-10 12:04:12,259 INFO L87 Difference]: Start difference. First operand 4572 states and 8503 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:12,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:04:12,506 INFO L93 Difference]: Finished difference Result 9081 states and 16915 transitions. [2022-01-10 12:04:12,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 12:04:12,507 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2022-01-10 12:04:12,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:04:12,513 INFO L225 Difference]: With dead ends: 9081 [2022-01-10 12:04:12,513 INFO L226 Difference]: Without dead ends: 4634 [2022-01-10 12:04:12,517 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:04:12,517 INFO L933 BasicCegarLoop]: 4290 mSDtfsCounter, 16967 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16967 SdHoareTripleChecker+Valid, 4406 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:04:12,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16967 Valid, 4406 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:04:12,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4634 states. [2022-01-10 12:04:12,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4634 to 4572. [2022-01-10 12:04:12,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4572 states, 4568 states have (on average 1.8609894921190893) internal successors, (8501), 4571 states have internal predecessors, (8501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:12,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4572 states to 4572 states and 8501 transitions. [2022-01-10 12:04:12,682 INFO L78 Accepts]: Start accepts. Automaton has 4572 states and 8501 transitions. Word has length 88 [2022-01-10 12:04:12,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:04:12,682 INFO L470 AbstractCegarLoop]: Abstraction has 4572 states and 8501 transitions. [2022-01-10 12:04:12,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:12,683 INFO L276 IsEmpty]: Start isEmpty. Operand 4572 states and 8501 transitions. [2022-01-10 12:04:12,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-01-10 12:04:12,685 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:04:12,685 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] [2022-01-10 12:04:12,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 12:04:12,685 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:04:12,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:04:12,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1053849226, now seen corresponding path program 1 times [2022-01-10 12:04:12,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:04:12,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067241603] [2022-01-10 12:04:12,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:04:12,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:04:12,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:04:12,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:04:12,741 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:04:12,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067241603] [2022-01-10 12:04:12,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067241603] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:04:12,741 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:04:12,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 12:04:12,741 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070551490] [2022-01-10 12:04:12,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:04:12,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 12:04:12,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:04:12,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 12:04:12,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 12:04:12,742 INFO L87 Difference]: Start difference. First operand 4572 states and 8501 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:13,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:04:13,379 INFO L93 Difference]: Finished difference Result 18001 states and 33605 transitions. [2022-01-10 12:04:13,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 12:04:13,380 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 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 89 [2022-01-10 12:04:13,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:04:13,407 INFO L225 Difference]: With dead ends: 18001 [2022-01-10 12:04:13,407 INFO L226 Difference]: Without dead ends: 13554 [2022-01-10 12:04:13,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-01-10 12:04:13,418 INFO L933 BasicCegarLoop]: 8463 mSDtfsCounter, 21162 mSDsluCounter, 12678 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21162 SdHoareTripleChecker+Valid, 21141 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:04:13,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21162 Valid, 21141 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:04:13,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13554 states. [2022-01-10 12:04:13,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13554 to 4592. [2022-01-10 12:04:13,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4592 states, 4588 states have (on average 1.8589799476896252) internal successors, (8529), 4591 states have internal predecessors, (8529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:13,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4592 states to 4592 states and 8529 transitions. [2022-01-10 12:04:13,684 INFO L78 Accepts]: Start accepts. Automaton has 4592 states and 8529 transitions. Word has length 89 [2022-01-10 12:04:13,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:04:13,684 INFO L470 AbstractCegarLoop]: Abstraction has 4592 states and 8529 transitions. [2022-01-10 12:04:13,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:13,685 INFO L276 IsEmpty]: Start isEmpty. Operand 4592 states and 8529 transitions. [2022-01-10 12:04:13,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-01-10 12:04:13,687 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:04:13,687 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] [2022-01-10 12:04:13,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 12:04:13,687 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:04:13,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:04:13,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1758966111, now seen corresponding path program 1 times [2022-01-10 12:04:13,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:04:13,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930572721] [2022-01-10 12:04:13,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:04:13,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:04:13,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:04:13,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:04:13,767 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:04:13,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930572721] [2022-01-10 12:04:13,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930572721] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:04:13,768 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:04:13,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:04:13,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772028335] [2022-01-10 12:04:13,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:04:13,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:04:13,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:04:13,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:04:13,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:04:13,769 INFO L87 Difference]: Start difference. First operand 4592 states and 8529 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:14,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:04:14,021 INFO L93 Difference]: Finished difference Result 8060 states and 14970 transitions. [2022-01-10 12:04:14,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:04:14,021 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2022-01-10 12:04:14,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:04:14,028 INFO L225 Difference]: With dead ends: 8060 [2022-01-10 12:04:14,028 INFO L226 Difference]: Without dead ends: 4621 [2022-01-10 12:04:14,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:04:14,032 INFO L933 BasicCegarLoop]: 4241 mSDtfsCounter, 4338 mSDsluCounter, 4264 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4338 SdHoareTripleChecker+Valid, 8505 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:04:14,032 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4338 Valid, 8505 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:04:14,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4621 states. [2022-01-10 12:04:14,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4621 to 4589. [2022-01-10 12:04:14,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4589 states, 4585 states have (on average 1.8577971646673936) internal successors, (8518), 4588 states have internal predecessors, (8518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:14,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4589 states to 4589 states and 8518 transitions. [2022-01-10 12:04:14,223 INFO L78 Accepts]: Start accepts. Automaton has 4589 states and 8518 transitions. Word has length 90 [2022-01-10 12:04:14,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:04:14,223 INFO L470 AbstractCegarLoop]: Abstraction has 4589 states and 8518 transitions. [2022-01-10 12:04:14,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:14,223 INFO L276 IsEmpty]: Start isEmpty. Operand 4589 states and 8518 transitions. [2022-01-10 12:04:14,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-10 12:04:14,226 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:04:14,226 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] [2022-01-10 12:04:14,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 12:04:14,226 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:04:14,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:04:14,226 INFO L85 PathProgramCache]: Analyzing trace with hash 913679954, now seen corresponding path program 1 times [2022-01-10 12:04:14,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:04:14,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312292940] [2022-01-10 12:04:14,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:04:14,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:04:14,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:04:14,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:04:14,289 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:04:14,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312292940] [2022-01-10 12:04:14,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312292940] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:04:14,289 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:04:14,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:04:14,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728594087] [2022-01-10 12:04:14,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:04:14,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 12:04:14,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:04:14,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 12:04:14,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:04:14,291 INFO L87 Difference]: Start difference. First operand 4589 states and 8518 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:15,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:04:15,176 INFO L93 Difference]: Finished difference Result 12757 states and 23792 transitions. [2022-01-10 12:04:15,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 12:04:15,177 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2022-01-10 12:04:15,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:04:15,190 INFO L225 Difference]: With dead ends: 12757 [2022-01-10 12:04:15,190 INFO L226 Difference]: Without dead ends: 8326 [2022-01-10 12:04:15,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:04:15,196 INFO L933 BasicCegarLoop]: 4298 mSDtfsCounter, 11120 mSDsluCounter, 3559 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11120 SdHoareTripleChecker+Valid, 7857 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 12:04:15,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11120 Valid, 7857 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 12:04:15,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8326 states. [2022-01-10 12:04:15,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8326 to 4589. [2022-01-10 12:04:15,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4589 states, 4585 states have (on average 1.8316248636859325) internal successors, (8398), 4588 states have internal predecessors, (8398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:15,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4589 states to 4589 states and 8398 transitions. [2022-01-10 12:04:15,414 INFO L78 Accepts]: Start accepts. Automaton has 4589 states and 8398 transitions. Word has length 91 [2022-01-10 12:04:15,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:04:15,414 INFO L470 AbstractCegarLoop]: Abstraction has 4589 states and 8398 transitions. [2022-01-10 12:04:15,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:15,414 INFO L276 IsEmpty]: Start isEmpty. Operand 4589 states and 8398 transitions. [2022-01-10 12:04:15,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-10 12:04:15,417 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:04:15,417 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] [2022-01-10 12:04:15,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 12:04:15,417 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:04:15,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:04:15,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1021401610, now seen corresponding path program 1 times [2022-01-10 12:04:15,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:04:15,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729596089] [2022-01-10 12:04:15,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:04:15,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:04:15,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:04:15,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:04:15,515 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:04:15,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729596089] [2022-01-10 12:04:15,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729596089] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:04:15,515 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:04:15,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:04:15,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971066218] [2022-01-10 12:04:15,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:04:15,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 12:04:15,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:04:15,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 12:04:15,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 12:04:15,517 INFO L87 Difference]: Start difference. First operand 4589 states and 8398 transitions. Second operand has 6 states, 6 states have (on average 16.5) internal successors, (99), 5 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) [2022-01-10 12:04:19,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:04:19,406 INFO L93 Difference]: Finished difference Result 48467 states and 89829 transitions. [2022-01-10 12:04:19,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-10 12:04:19,407 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 5 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 [2022-01-10 12:04:19,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:04:19,485 INFO L225 Difference]: With dead ends: 48467 [2022-01-10 12:04:19,485 INFO L226 Difference]: Without dead ends: 44072 [2022-01-10 12:04:19,502 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2022-01-10 12:04:19,503 INFO L933 BasicCegarLoop]: 18929 mSDtfsCounter, 27417 mSDsluCounter, 62007 mSDsCounter, 0 mSdLazyCounter, 2016 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27417 SdHoareTripleChecker+Valid, 80936 SdHoareTripleChecker+Invalid, 2169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 2016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-10 12:04:19,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27417 Valid, 80936 Invalid, 2169 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [153 Valid, 2016 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-10 12:04:19,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44072 states. [2022-01-10 12:04:20,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44072 to 9013. [2022-01-10 12:04:20,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9013 states, 9009 states have (on average 1.8367188367188367) internal successors, (16547), 9012 states have internal predecessors, (16547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:20,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9013 states to 9013 states and 16547 transitions. [2022-01-10 12:04:20,163 INFO L78 Accepts]: Start accepts. Automaton has 9013 states and 16547 transitions. Word has length 99 [2022-01-10 12:04:20,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:04:20,163 INFO L470 AbstractCegarLoop]: Abstraction has 9013 states and 16547 transitions. [2022-01-10 12:04:20,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 5 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) [2022-01-10 12:04:20,164 INFO L276 IsEmpty]: Start isEmpty. Operand 9013 states and 16547 transitions. [2022-01-10 12:04:20,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-01-10 12:04:20,169 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:04:20,169 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] [2022-01-10 12:04:20,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-10 12:04:20,169 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:04:20,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:04:20,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1934242973, now seen corresponding path program 1 times [2022-01-10 12:04:20,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:04:20,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579676284] [2022-01-10 12:04:20,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:04:20,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:04:20,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:04:20,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:04:20,235 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:04:20,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579676284] [2022-01-10 12:04:20,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579676284] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:04:20,235 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:04:20,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-10 12:04:20,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396502088] [2022-01-10 12:04:20,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:04:20,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 12:04:20,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:04:20,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 12:04:20,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:04:20,236 INFO L87 Difference]: Start difference. First operand 9013 states and 16547 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 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) [2022-01-10 12:04:22,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:04:22,091 INFO L93 Difference]: Finished difference Result 42145 states and 77685 transitions. [2022-01-10 12:04:22,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 12:04:22,092 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 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 [2022-01-10 12:04:22,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:04:22,144 INFO L225 Difference]: With dead ends: 42145 [2022-01-10 12:04:22,144 INFO L226 Difference]: Without dead ends: 33326 [2022-01-10 12:04:22,161 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-01-10 12:04:22,161 INFO L933 BasicCegarLoop]: 14388 mSDtfsCounter, 20734 mSDsluCounter, 33233 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20734 SdHoareTripleChecker+Valid, 47621 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:04:22,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20734 Valid, 47621 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:04:22,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33326 states. [2022-01-10 12:04:22,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33326 to 9049. [2022-01-10 12:04:22,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9049 states, 9045 states have (on average 1.834383637368712) internal successors, (16592), 9048 states have internal predecessors, (16592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:22,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9049 states to 9049 states and 16592 transitions. [2022-01-10 12:04:22,801 INFO L78 Accepts]: Start accepts. Automaton has 9049 states and 16592 transitions. Word has length 100 [2022-01-10 12:04:22,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:04:22,801 INFO L470 AbstractCegarLoop]: Abstraction has 9049 states and 16592 transitions. [2022-01-10 12:04:22,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 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) [2022-01-10 12:04:22,801 INFO L276 IsEmpty]: Start isEmpty. Operand 9049 states and 16592 transitions. [2022-01-10 12:04:22,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-10 12:04:22,806 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:04:22,806 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] [2022-01-10 12:04:22,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-10 12:04:22,806 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:04:22,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:04:22,807 INFO L85 PathProgramCache]: Analyzing trace with hash 433864608, now seen corresponding path program 1 times [2022-01-10 12:04:22,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:04:22,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626760827] [2022-01-10 12:04:22,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:04:22,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:04:22,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:04:22,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:04:22,867 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:04:22,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626760827] [2022-01-10 12:04:22,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626760827] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:04:22,868 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:04:22,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:04:22,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865683765] [2022-01-10 12:04:22,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:04:22,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:04:22,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:04:22,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:04:22,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:04:22,869 INFO L87 Difference]: Start difference. First operand 9049 states and 16592 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:25,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:04:25,395 INFO L93 Difference]: Finished difference Result 35783 states and 65934 transitions. [2022-01-10 12:04:25,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 12:04:25,396 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-10 12:04:25,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:04:25,438 INFO L225 Difference]: With dead ends: 35783 [2022-01-10 12:04:25,439 INFO L226 Difference]: Without dead ends: 27102 [2022-01-10 12:04:25,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 12:04:25,452 INFO L933 BasicCegarLoop]: 9067 mSDtfsCounter, 15135 mSDsluCounter, 12059 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15135 SdHoareTripleChecker+Valid, 21126 SdHoareTripleChecker+Invalid, 1025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 12:04:25,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15135 Valid, 21126 Invalid, 1025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 907 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-10 12:04:25,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27102 states. [2022-01-10 12:04:26,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27102 to 9073. [2022-01-10 12:04:26,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9073 states, 9069 states have (on average 1.8321755430587716) internal successors, (16616), 9072 states have internal predecessors, (16616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:26,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9073 states to 9073 states and 16616 transitions. [2022-01-10 12:04:26,096 INFO L78 Accepts]: Start accepts. Automaton has 9073 states and 16616 transitions. Word has length 101 [2022-01-10 12:04:26,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:04:26,096 INFO L470 AbstractCegarLoop]: Abstraction has 9073 states and 16616 transitions. [2022-01-10 12:04:26,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:26,096 INFO L276 IsEmpty]: Start isEmpty. Operand 9073 states and 16616 transitions. [2022-01-10 12:04:26,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-10 12:04:26,101 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:04:26,101 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] [2022-01-10 12:04:26,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-10 12:04:26,101 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:04:26,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:04:26,102 INFO L85 PathProgramCache]: Analyzing trace with hash -58929428, now seen corresponding path program 1 times [2022-01-10 12:04:26,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:04:26,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212762469] [2022-01-10 12:04:26,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:04:26,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:04:26,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:04:26,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:04:26,160 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:04:26,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212762469] [2022-01-10 12:04:26,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212762469] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:04:26,160 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:04:26,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 12:04:26,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344326654] [2022-01-10 12:04:26,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:04:26,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 12:04:26,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:04:26,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 12:04:26,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-10 12:04:26,161 INFO L87 Difference]: Start difference. First operand 9073 states and 16616 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:27,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:04:27,004 INFO L93 Difference]: Finished difference Result 22402 states and 41149 transitions. [2022-01-10 12:04:27,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 12:04:27,005 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-10 12:04:27,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:04:27,025 INFO L225 Difference]: With dead ends: 22402 [2022-01-10 12:04:27,026 INFO L226 Difference]: Without dead ends: 13427 [2022-01-10 12:04:27,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:04:27,035 INFO L933 BasicCegarLoop]: 6195 mSDtfsCounter, 12302 mSDsluCounter, 12527 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12302 SdHoareTripleChecker+Valid, 18722 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:04:27,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12302 Valid, 18722 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:04:27,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13427 states. [2022-01-10 12:04:27,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13427 to 9007. [2022-01-10 12:04:27,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9007 states, 9003 states have (on average 1.8350549816727757) internal successors, (16521), 9006 states have internal predecessors, (16521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:27,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9007 states to 9007 states and 16521 transitions. [2022-01-10 12:04:27,647 INFO L78 Accepts]: Start accepts. Automaton has 9007 states and 16521 transitions. Word has length 101 [2022-01-10 12:04:27,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:04:27,647 INFO L470 AbstractCegarLoop]: Abstraction has 9007 states and 16521 transitions. [2022-01-10 12:04:27,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:27,647 INFO L276 IsEmpty]: Start isEmpty. Operand 9007 states and 16521 transitions. [2022-01-10 12:04:27,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-01-10 12:04:27,652 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:04:27,652 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] [2022-01-10 12:04:27,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-10 12:04:27,652 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:04:27,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:04:27,653 INFO L85 PathProgramCache]: Analyzing trace with hash 513032336, now seen corresponding path program 1 times [2022-01-10 12:04:27,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:04:27,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934348551] [2022-01-10 12:04:27,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:04:27,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:04:27,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:04:27,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:04:27,713 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:04:27,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934348551] [2022-01-10 12:04:27,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934348551] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:04:27,713 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:04:27,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:04:27,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119869872] [2022-01-10 12:04:27,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:04:27,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 12:04:27,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:04:27,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 12:04:27,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:04:27,715 INFO L87 Difference]: Start difference. First operand 9007 states and 16521 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:30,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:04:30,063 INFO L93 Difference]: Finished difference Result 30839 states and 56975 transitions. [2022-01-10 12:04:30,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:04:30,064 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2022-01-10 12:04:30,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:04:30,095 INFO L225 Difference]: With dead ends: 30839 [2022-01-10 12:04:30,095 INFO L226 Difference]: Without dead ends: 22056 [2022-01-10 12:04:30,105 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 [2022-01-10 12:04:30,105 INFO L933 BasicCegarLoop]: 10212 mSDtfsCounter, 6865 mSDsluCounter, 8547 mSDsCounter, 0 mSdLazyCounter, 1043 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6865 SdHoareTripleChecker+Valid, 18759 SdHoareTripleChecker+Invalid, 1147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-10 12:04:30,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6865 Valid, 18759 Invalid, 1147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 1043 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-10 12:04:30,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22056 states. [2022-01-10 12:04:30,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22056 to 12259. [2022-01-10 12:04:30,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12259 states, 12255 states have (on average 1.8151774785801713) internal successors, (22245), 12258 states have internal predecessors, (22245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:30,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12259 states to 12259 states and 22245 transitions. [2022-01-10 12:04:30,946 INFO L78 Accepts]: Start accepts. Automaton has 12259 states and 22245 transitions. Word has length 102 [2022-01-10 12:04:30,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:04:30,946 INFO L470 AbstractCegarLoop]: Abstraction has 12259 states and 22245 transitions. [2022-01-10 12:04:30,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:30,947 INFO L276 IsEmpty]: Start isEmpty. Operand 12259 states and 22245 transitions. [2022-01-10 12:04:30,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-01-10 12:04:30,950 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:04:30,950 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] [2022-01-10 12:04:30,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-10 12:04:30,951 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:04:30,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:04:30,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1148720074, now seen corresponding path program 1 times [2022-01-10 12:04:30,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:04:30,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090141153] [2022-01-10 12:04:30,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:04:30,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:04:30,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:04:31,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:04:31,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:04:31,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090141153] [2022-01-10 12:04:31,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090141153] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:04:31,027 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:04:31,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 12:04:31,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104488924] [2022-01-10 12:04:31,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:04:31,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 12:04:31,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:04:31,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 12:04:31,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 12:04:31,029 INFO L87 Difference]: Start difference. First operand 12259 states and 22245 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:32,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:04:32,974 INFO L93 Difference]: Finished difference Result 42421 states and 77175 transitions. [2022-01-10 12:04:32,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 12:04:32,974 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2022-01-10 12:04:32,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:04:33,026 INFO L225 Difference]: With dead ends: 42421 [2022-01-10 12:04:33,026 INFO L226 Difference]: Without dead ends: 30324 [2022-01-10 12:04:33,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-01-10 12:04:33,042 INFO L933 BasicCegarLoop]: 11296 mSDtfsCounter, 18716 mSDsluCounter, 22747 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18716 SdHoareTripleChecker+Valid, 34043 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:04:33,042 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18716 Valid, 34043 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:04:33,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30324 states. [2022-01-10 12:04:33,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30324 to 12281. [2022-01-10 12:04:33,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12281 states, 12277 states have (on average 1.8142054247780401) internal successors, (22273), 12280 states have internal predecessors, (22273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:33,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12281 states to 12281 states and 22273 transitions. [2022-01-10 12:04:33,948 INFO L78 Accepts]: Start accepts. Automaton has 12281 states and 22273 transitions. Word has length 102 [2022-01-10 12:04:33,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:04:33,948 INFO L470 AbstractCegarLoop]: Abstraction has 12281 states and 22273 transitions. [2022-01-10 12:04:33,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:33,948 INFO L276 IsEmpty]: Start isEmpty. Operand 12281 states and 22273 transitions. [2022-01-10 12:04:33,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-01-10 12:04:33,952 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:04:33,952 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] [2022-01-10 12:04:33,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-10 12:04:33,952 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:04:33,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:04:33,953 INFO L85 PathProgramCache]: Analyzing trace with hash 941187773, now seen corresponding path program 1 times [2022-01-10 12:04:33,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:04:33,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489912297] [2022-01-10 12:04:33,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:04:33,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:04:33,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:04:34,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:04:34,030 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:04:34,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489912297] [2022-01-10 12:04:34,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489912297] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:04:34,031 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:04:34,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 12:04:34,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470450560] [2022-01-10 12:04:34,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:04:34,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 12:04:34,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:04:34,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 12:04:34,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-10 12:04:34,032 INFO L87 Difference]: Start difference. First operand 12281 states and 22273 transitions. Second operand has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:34,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:04:34,475 INFO L93 Difference]: Finished difference Result 18284 states and 33213 transitions. [2022-01-10 12:04:34,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 12:04:34,476 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2022-01-10 12:04:34,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:04:34,485 INFO L225 Difference]: With dead ends: 18284 [2022-01-10 12:04:34,485 INFO L226 Difference]: Without dead ends: 6091 [2022-01-10 12:04:34,493 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:04:34,494 INFO L933 BasicCegarLoop]: 3771 mSDtfsCounter, 7554 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7554 SdHoareTripleChecker+Valid, 3839 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:04:34,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7554 Valid, 3839 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:04:34,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6091 states. [2022-01-10 12:04:34,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6091 to 6091. [2022-01-10 12:04:34,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6091 states, 6087 states have (on average 1.8145227534089041) internal successors, (11045), 6090 states have internal predecessors, (11045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:34,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6091 states to 6091 states and 11045 transitions. [2022-01-10 12:04:34,964 INFO L78 Accepts]: Start accepts. Automaton has 6091 states and 11045 transitions. Word has length 103 [2022-01-10 12:04:34,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:04:34,965 INFO L470 AbstractCegarLoop]: Abstraction has 6091 states and 11045 transitions. [2022-01-10 12:04:34,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:34,965 INFO L276 IsEmpty]: Start isEmpty. Operand 6091 states and 11045 transitions. [2022-01-10 12:04:34,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-10 12:04:34,967 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:04:34,967 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] [2022-01-10 12:04:34,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-10 12:04:34,967 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:04:34,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:04:34,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1517923262, now seen corresponding path program 1 times [2022-01-10 12:04:34,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:04:34,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697429079] [2022-01-10 12:04:34,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:04:34,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:04:34,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:04:35,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:04:35,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:04:35,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697429079] [2022-01-10 12:04:35,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697429079] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:04:35,021 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:04:35,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:04:35,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565328683] [2022-01-10 12:04:35,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:04:35,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:04:35,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:04:35,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:04:35,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:04:35,022 INFO L87 Difference]: Start difference. First operand 6091 states and 11045 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:37,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:04:37,760 INFO L93 Difference]: Finished difference Result 43719 states and 79939 transitions. [2022-01-10 12:04:37,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 12:04:37,760 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 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 104 [2022-01-10 12:04:37,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:04:37,819 INFO L225 Difference]: With dead ends: 43719 [2022-01-10 12:04:37,820 INFO L226 Difference]: Without dead ends: 37758 [2022-01-10 12:04:37,828 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:04:37,828 INFO L933 BasicCegarLoop]: 5925 mSDtfsCounter, 26660 mSDsluCounter, 17540 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26660 SdHoareTripleChecker+Valid, 23465 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:04:37,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26660 Valid, 23465 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:04:37,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37758 states. [2022-01-10 12:04:38,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37758 to 11185. [2022-01-10 12:04:38,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11185 states, 11181 states have (on average 1.8258653072176012) internal successors, (20415), 11184 states have internal predecessors, (20415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:38,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11185 states to 11185 states and 20415 transitions. [2022-01-10 12:04:38,745 INFO L78 Accepts]: Start accepts. Automaton has 11185 states and 20415 transitions. Word has length 104 [2022-01-10 12:04:38,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:04:38,746 INFO L470 AbstractCegarLoop]: Abstraction has 11185 states and 20415 transitions. [2022-01-10 12:04:38,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:38,746 INFO L276 IsEmpty]: Start isEmpty. Operand 11185 states and 20415 transitions. [2022-01-10 12:04:38,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-10 12:04:38,748 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:04:38,748 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] [2022-01-10 12:04:38,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-10 12:04:38,749 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:04:38,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:04:38,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1144240035, now seen corresponding path program 1 times [2022-01-10 12:04:38,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:04:38,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217627225] [2022-01-10 12:04:38,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:04:38,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:04:38,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:04:38,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:04:38,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:04:38,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217627225] [2022-01-10 12:04:38,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217627225] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:04:38,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:04:38,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:04:38,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386338183] [2022-01-10 12:04:38,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:04:38,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 12:04:38,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:04:38,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 12:04:38,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 12:04:38,808 INFO L87 Difference]: Start difference. First operand 11185 states and 20415 transitions. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 5 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:40,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:04:40,380 INFO L93 Difference]: Finished difference Result 20251 states and 36831 transitions. [2022-01-10 12:04:40,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 12:04:40,380 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 5 states have internal predecessors, (104), 0 states have call successors, (0), 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 104 [2022-01-10 12:04:40,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:04:40,407 INFO L225 Difference]: With dead ends: 20251 [2022-01-10 12:04:40,407 INFO L226 Difference]: Without dead ends: 15364 [2022-01-10 12:04:40,416 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-01-10 12:04:40,417 INFO L933 BasicCegarLoop]: 5163 mSDtfsCounter, 15935 mSDsluCounter, 6637 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15935 SdHoareTripleChecker+Valid, 11800 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 12:04:40,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15935 Valid, 11800 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 12:04:40,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15364 states. [2022-01-10 12:04:41,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15364 to 11165. [2022-01-10 12:04:41,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11165 states, 11161 states have (on average 1.8255532658363947) internal successors, (20375), 11164 states have internal predecessors, (20375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:41,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11165 states to 11165 states and 20375 transitions. [2022-01-10 12:04:41,285 INFO L78 Accepts]: Start accepts. Automaton has 11165 states and 20375 transitions. Word has length 104 [2022-01-10 12:04:41,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:04:41,285 INFO L470 AbstractCegarLoop]: Abstraction has 11165 states and 20375 transitions. [2022-01-10 12:04:41,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 5 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:41,285 INFO L276 IsEmpty]: Start isEmpty. Operand 11165 states and 20375 transitions. [2022-01-10 12:04:41,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-10 12:04:41,288 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:04:41,288 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] [2022-01-10 12:04:41,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-10 12:04:41,288 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:04:41,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:04:41,288 INFO L85 PathProgramCache]: Analyzing trace with hash -935526595, now seen corresponding path program 1 times [2022-01-10 12:04:41,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:04:41,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5943497] [2022-01-10 12:04:41,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:04:41,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:04:41,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:04:41,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:04:41,340 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:04:41,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5943497] [2022-01-10 12:04:41,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5943497] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:04:41,341 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:04:41,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:04:41,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227216426] [2022-01-10 12:04:41,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:04:41,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:04:41,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:04:41,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:04:41,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:04:41,342 INFO L87 Difference]: Start difference. First operand 11165 states and 20375 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:42,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:04:42,622 INFO L93 Difference]: Finished difference Result 19919 states and 36093 transitions. [2022-01-10 12:04:42,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 12:04:42,623 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 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 106 [2022-01-10 12:04:42,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:04:42,646 INFO L225 Difference]: With dead ends: 19919 [2022-01-10 12:04:42,646 INFO L226 Difference]: Without dead ends: 15218 [2022-01-10 12:04:42,652 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 [2022-01-10 12:04:42,652 INFO L933 BasicCegarLoop]: 5346 mSDtfsCounter, 4304 mSDsluCounter, 12703 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4304 SdHoareTripleChecker+Valid, 18049 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:04:42,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4304 Valid, 18049 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:04:42,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15218 states. [2022-01-10 12:04:43,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15218 to 11195. [2022-01-10 12:04:43,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11195 states, 11191 states have (on average 1.82334018407649) internal successors, (20405), 11194 states have internal predecessors, (20405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:43,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11195 states to 11195 states and 20405 transitions. [2022-01-10 12:04:43,586 INFO L78 Accepts]: Start accepts. Automaton has 11195 states and 20405 transitions. Word has length 106 [2022-01-10 12:04:43,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:04:43,586 INFO L470 AbstractCegarLoop]: Abstraction has 11195 states and 20405 transitions. [2022-01-10 12:04:43,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:43,586 INFO L276 IsEmpty]: Start isEmpty. Operand 11195 states and 20405 transitions. [2022-01-10 12:04:43,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-10 12:04:43,589 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:04:43,589 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] [2022-01-10 12:04:43,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-10 12:04:43,590 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:04:43,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:04:43,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1131898450, now seen corresponding path program 1 times [2022-01-10 12:04:43,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:04:43,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263835949] [2022-01-10 12:04:43,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:04:43,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:04:43,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:04:43,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:04:43,646 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:04:43,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263835949] [2022-01-10 12:04:43,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263835949] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:04:43,646 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:04:43,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:04:43,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236433902] [2022-01-10 12:04:43,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:04:43,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:04:43,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:04:43,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:04:43,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:04:43,648 INFO L87 Difference]: Start difference. First operand 11195 states and 20405 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:45,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:04:45,171 INFO L93 Difference]: Finished difference Result 23195 states and 42371 transitions. [2022-01-10 12:04:45,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:04:45,171 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2022-01-10 12:04:45,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:04:45,191 INFO L225 Difference]: With dead ends: 23195 [2022-01-10 12:04:45,191 INFO L226 Difference]: Without dead ends: 14778 [2022-01-10 12:04:45,197 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:04:45,197 INFO L933 BasicCegarLoop]: 3547 mSDtfsCounter, 2213 mSDsluCounter, 3183 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2213 SdHoareTripleChecker+Valid, 6730 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 12:04:45,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2213 Valid, 6730 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 12:04:45,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14778 states. [2022-01-10 12:04:46,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14778 to 11195. [2022-01-10 12:04:46,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11195 states, 11191 states have (on average 1.8147618622107051) internal successors, (20309), 11194 states have internal predecessors, (20309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:46,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11195 states to 11195 states and 20309 transitions. [2022-01-10 12:04:46,035 INFO L78 Accepts]: Start accepts. Automaton has 11195 states and 20309 transitions. Word has length 114 [2022-01-10 12:04:46,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:04:46,035 INFO L470 AbstractCegarLoop]: Abstraction has 11195 states and 20309 transitions. [2022-01-10 12:04:46,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:46,035 INFO L276 IsEmpty]: Start isEmpty. Operand 11195 states and 20309 transitions. [2022-01-10 12:04:46,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-10 12:04:46,038 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:04:46,038 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] [2022-01-10 12:04:46,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-10 12:04:46,038 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:04:46,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:04:46,038 INFO L85 PathProgramCache]: Analyzing trace with hash -606160227, now seen corresponding path program 1 times [2022-01-10 12:04:46,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:04:46,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266909777] [2022-01-10 12:04:46,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:04:46,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:04:46,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:04:46,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:04:46,083 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:04:46,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266909777] [2022-01-10 12:04:46,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266909777] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:04:46,083 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:04:46,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:04:46,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616403789] [2022-01-10 12:04:46,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:04:46,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:04:46,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:04:46,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:04:46,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:04:46,084 INFO L87 Difference]: Start difference. First operand 11195 states and 20309 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:47,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:04:47,651 INFO L93 Difference]: Finished difference Result 29543 states and 53671 transitions. [2022-01-10 12:04:47,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:04:47,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2022-01-10 12:04:47,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:04:47,688 INFO L225 Difference]: With dead ends: 29543 [2022-01-10 12:04:47,689 INFO L226 Difference]: Without dead ends: 21214 [2022-01-10 12:04:47,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:04:47,702 INFO L933 BasicCegarLoop]: 3740 mSDtfsCounter, 3641 mSDsluCounter, 2993 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3641 SdHoareTripleChecker+Valid, 6733 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:04:47,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3641 Valid, 6733 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:04:47,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21214 states. [2022-01-10 12:04:49,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21214 to 21195. [2022-01-10 12:04:49,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21195 states, 21191 states have (on average 1.8211032985701476) internal successors, (38591), 21194 states have internal predecessors, (38591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:49,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21195 states to 21195 states and 38591 transitions. [2022-01-10 12:04:49,450 INFO L78 Accepts]: Start accepts. Automaton has 21195 states and 38591 transitions. Word has length 114 [2022-01-10 12:04:49,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:04:49,450 INFO L470 AbstractCegarLoop]: Abstraction has 21195 states and 38591 transitions. [2022-01-10 12:04:49,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:49,451 INFO L276 IsEmpty]: Start isEmpty. Operand 21195 states and 38591 transitions. [2022-01-10 12:04:49,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-01-10 12:04:49,455 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:04:49,455 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:04:49,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-10 12:04:49,455 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:04:49,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:04:49,456 INFO L85 PathProgramCache]: Analyzing trace with hash 197695442, now seen corresponding path program 1 times [2022-01-10 12:04:49,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:04:49,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953912260] [2022-01-10 12:04:49,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:04:49,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:04:49,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:04:49,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:04:49,514 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:04:49,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953912260] [2022-01-10 12:04:49,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953912260] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:04:49,514 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:04:49,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:04:49,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562248798] [2022-01-10 12:04:49,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:04:49,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:04:49,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:04:49,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:04:49,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:04:49,515 INFO L87 Difference]: Start difference. First operand 21195 states and 38591 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:51,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:04:51,940 INFO L93 Difference]: Finished difference Result 39667 states and 71751 transitions. [2022-01-10 12:04:51,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:04:51,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2022-01-10 12:04:51,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:04:51,992 INFO L225 Difference]: With dead ends: 39667 [2022-01-10 12:04:51,992 INFO L226 Difference]: Without dead ends: 30368 [2022-01-10 12:04:52,002 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:04:52,002 INFO L933 BasicCegarLoop]: 3727 mSDtfsCounter, 3619 mSDsluCounter, 2016 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3619 SdHoareTripleChecker+Valid, 5743 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:04:52,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3619 Valid, 5743 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:04:52,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30368 states. [2022-01-10 12:04:54,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30368 to 30301. [2022-01-10 12:04:54,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30301 states, 30297 states have (on average 1.8130177905403175) internal successors, (54929), 30300 states have internal predecessors, (54929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:54,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30301 states to 30301 states and 54929 transitions. [2022-01-10 12:04:54,573 INFO L78 Accepts]: Start accepts. Automaton has 30301 states and 54929 transitions. Word has length 115 [2022-01-10 12:04:54,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:04:54,574 INFO L470 AbstractCegarLoop]: Abstraction has 30301 states and 54929 transitions. [2022-01-10 12:04:54,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:54,574 INFO L276 IsEmpty]: Start isEmpty. Operand 30301 states and 54929 transitions. [2022-01-10 12:04:54,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-01-10 12:04:54,578 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:04:54,578 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] [2022-01-10 12:04:54,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-10 12:04:54,579 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:04:54,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:04:54,579 INFO L85 PathProgramCache]: Analyzing trace with hash 2074008251, now seen corresponding path program 1 times [2022-01-10 12:04:54,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:04:54,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57168467] [2022-01-10 12:04:54,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:04:54,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:04:54,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:04:54,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:04:54,635 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:04:54,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57168467] [2022-01-10 12:04:54,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57168467] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:04:54,635 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:04:54,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:04:54,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561224918] [2022-01-10 12:04:54,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:04:54,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:04:54,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:04:54,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:04:54,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:04:54,636 INFO L87 Difference]: Start difference. First operand 30301 states and 54929 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:04:58,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:04:58,147 INFO L93 Difference]: Finished difference Result 57811 states and 104329 transitions. [2022-01-10 12:04:58,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:04:58,147 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2022-01-10 12:04:58,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:04:58,213 INFO L225 Difference]: With dead ends: 57811 [2022-01-10 12:04:58,213 INFO L226 Difference]: Without dead ends: 39456 [2022-01-10 12:04:58,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:04:58,228 INFO L933 BasicCegarLoop]: 3775 mSDtfsCounter, 2026 mSDsluCounter, 3700 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2026 SdHoareTripleChecker+Valid, 7475 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:04:58,228 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2026 Valid, 7475 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:04:58,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39456 states.