/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec14_product11.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 05:30:56,974 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 05:30:56,982 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 05:30:57,027 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 05:30:57,028 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 05:30:57,037 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 05:30:57,040 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 05:30:57,044 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 05:30:57,046 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 05:30:57,050 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 05:30:57,050 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 05:30:57,051 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 05:30:57,052 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 05:30:57,053 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 05:30:57,054 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 05:30:57,055 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 05:30:57,055 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 05:30:57,056 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 05:30:57,056 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 05:30:57,057 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 05:30:57,058 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 05:30:57,059 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 05:30:57,059 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 05:30:57,060 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 05:30:57,061 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 05:30:57,061 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 05:30:57,062 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 05:30:57,062 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 05:30:57,062 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 05:30:57,063 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 05:30:57,063 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 05:30:57,063 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 05:30:57,064 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 05:30:57,064 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 05:30:57,065 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 05:30:57,065 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 05:30:57,066 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 05:30:57,066 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 05:30:57,066 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 05:30:57,066 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 05:30:57,067 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 05:30:57,073 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 05:30:57,101 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 05:30:57,101 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 05:30:57,101 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 05:30:57,101 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 05:30:57,102 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 05:30:57,102 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 05:30:57,102 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 05:30:57,103 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 05:30:57,103 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 05:30:57,103 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 05:30:57,103 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 05:30:57,104 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 05:30:57,104 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 05:30:57,104 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 05:30:57,104 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 05:30:57,104 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 05:30:57,104 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 05:30:57,104 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 05:30:57,104 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 05:30:57,104 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 05:30:57,104 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 05:30:57,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:30:57,106 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 05:30:57,106 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 05:30:57,106 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 05:30:57,106 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 05:30:57,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 05:30:57,106 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 05:30:57,106 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 05:30:57,106 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 05:30:57,106 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 05:30:57,106 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 05:30:57,107 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 05:30:57,107 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 05:30:57,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 05:30:57,348 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 05:30:57,349 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 05:30:57,350 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 05:30:57,350 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 05:30:57,351 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec14_product11.cil.c [2022-01-11 05:30:57,396 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ff801972/72523bd1e261492a901b792b5a7550fc/FLAGfdaa9ef1a [2022-01-11 05:30:57,919 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 05:30:57,920 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec14_product11.cil.c [2022-01-11 05:30:57,934 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ff801972/72523bd1e261492a901b792b5a7550fc/FLAGfdaa9ef1a [2022-01-11 05:30:58,426 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ff801972/72523bd1e261492a901b792b5a7550fc [2022-01-11 05:30:58,428 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 05:30:58,429 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 05:30:58,430 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 05:30:58,430 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 05:30:58,434 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 05:30:58,435 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:30:58" (1/1) ... [2022-01-11 05:30:58,448 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3adea6fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:58, skipping insertion in model container [2022-01-11 05:30:58,448 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:30:58" (1/1) ... [2022-01-11 05:30:58,453 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 05:30:58,504 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:30:58,691 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_spec14_product11.cil.c[3700,3713] [2022-01-11 05:30:58,917 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:30:58,929 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 05:30:58,943 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:30:58,954 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_spec14_product11.cil.c[3700,3713] [2022-01-11 05:30:59,003 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:30:59,008 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 05:30:59,019 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_spec14_product11.cil.c[3700,3713] [2022-01-11 05:30:59,105 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:30:59,121 INFO L208 MainTranslator]: Completed translation [2022-01-11 05:30:59,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:59 WrapperNode [2022-01-11 05:30:59,121 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 05:30:59,122 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 05:30:59,122 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 05:30:59,122 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 05:30:59,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:59" (1/1) ... [2022-01-11 05:30:59,162 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:59" (1/1) ... [2022-01-11 05:30:59,358 INFO L137 Inliner]: procedures = 92, calls = 331, calls flagged for inlining = 184, calls inlined = 631, statements flattened = 20220 [2022-01-11 05:30:59,358 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 05:30:59,359 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 05:30:59,359 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 05:30:59,359 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 05:30:59,365 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:59" (1/1) ... [2022-01-11 05:30:59,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:59" (1/1) ... [2022-01-11 05:30:59,410 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:59" (1/1) ... [2022-01-11 05:30:59,411 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:59" (1/1) ... [2022-01-11 05:30:59,480 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:59" (1/1) ... [2022-01-11 05:30:59,543 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:59" (1/1) ... [2022-01-11 05:30:59,567 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:59" (1/1) ... [2022-01-11 05:30:59,608 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 05:30:59,608 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 05:30:59,609 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 05:30:59,609 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 05:30:59,610 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:59" (1/1) ... [2022-01-11 05:30:59,615 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:30:59,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:30:59,632 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-11 05:30:59,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-11 05:30:59,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 05:30:59,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 05:30:59,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 05:30:59,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 05:30:59,802 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 05:30:59,803 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 05:31:06,208 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 05:31:06,243 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 05:31:06,243 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 05:31:06,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:31:06 BoogieIcfgContainer [2022-01-11 05:31:06,249 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 05:31:06,250 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 05:31:06,250 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 05:31:06,252 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 05:31:06,254 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:31:06" (1/1) ... [2022-01-11 05:31:07,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:31:07 BasicIcfg [2022-01-11 05:31:07,408 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 05:31:07,409 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 05:31:07,409 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 05:31:07,411 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 05:31:07,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:30:58" (1/4) ... [2022-01-11 05:31:07,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2db4026c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:31:07, skipping insertion in model container [2022-01-11 05:31:07,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:59" (2/4) ... [2022-01-11 05:31:07,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2db4026c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:31:07, skipping insertion in model container [2022-01-11 05:31:07,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:31:06" (3/4) ... [2022-01-11 05:31:07,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2db4026c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:31:07, skipping insertion in model container [2022-01-11 05:31:07,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:31:07" (4/4) ... [2022-01-11 05:31:07,413 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product11.cil.cTransformedIcfg [2022-01-11 05:31:07,419 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 05:31:07,419 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-01-11 05:31:07,476 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 05:31:07,480 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-11 05:31:07,481 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-11 05:31:07,556 INFO L276 IsEmpty]: Start isEmpty. Operand has 5831 states, 5825 states have (on average 1.872618025751073) internal successors, (10908), 5830 states have internal predecessors, (10908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:07,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-11 05:31:07,574 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:07,574 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] [2022-01-11 05:31:07,575 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)] === [2022-01-11 05:31:07,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:07,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1195115426, now seen corresponding path program 1 times [2022-01-11 05:31:07,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:07,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588144261] [2022-01-11 05:31:07,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:07,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:07,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:07,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:07,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:07,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588144261] [2022-01-11 05:31:07,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588144261] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:07,919 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:07,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:31:07,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900134857] [2022-01-11 05:31:07,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:07,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:31:07,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:07,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:31:07,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:31:07,992 INFO L87 Difference]: Start difference. First operand has 5831 states, 5825 states have (on average 1.872618025751073) internal successors, (10908), 5830 states have internal predecessors, (10908), 0 states have call successors, (0), 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 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:08,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:08,298 INFO L93 Difference]: Finished difference Result 14009 states and 26213 transitions. [2022-01-11 05:31:08,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:31:08,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2022-01-11 05:31:08,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:08,348 INFO L225 Difference]: With dead ends: 14009 [2022-01-11 05:31:08,348 INFO L226 Difference]: Without dead ends: 8177 [2022-01-11 05:31:08,365 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:31:08,370 INFO L933 BasicCegarLoop]: 15302 mSDtfsCounter, 10870 mSDsluCounter, 4425 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10870 SdHoareTripleChecker+Valid, 19727 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 [2022-01-11 05:31:08,372 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10870 Valid, 19727 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:31:08,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8177 states. [2022-01-11 05:31:08,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8177 to 5819. [2022-01-11 05:31:08,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5819 states, 5814 states have (on average 1.8715170278637772) internal successors, (10881), 5818 states have internal predecessors, (10881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:08,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5819 states to 5819 states and 10881 transitions. [2022-01-11 05:31:08,560 INFO L78 Accepts]: Start accepts. Automaton has 5819 states and 10881 transitions. Word has length 48 [2022-01-11 05:31:08,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:08,560 INFO L470 AbstractCegarLoop]: Abstraction has 5819 states and 10881 transitions. [2022-01-11 05:31:08,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:08,561 INFO L276 IsEmpty]: Start isEmpty. Operand 5819 states and 10881 transitions. [2022-01-11 05:31:08,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-01-11 05:31:08,563 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:08,563 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:31:08,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 05:31:08,563 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)] === [2022-01-11 05:31:08,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:08,565 INFO L85 PathProgramCache]: Analyzing trace with hash 515265056, now seen corresponding path program 1 times [2022-01-11 05:31:08,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:08,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170782749] [2022-01-11 05:31:08,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:08,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:08,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:08,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:08,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:08,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170782749] [2022-01-11 05:31:08,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170782749] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:08,672 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:08,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:31:08,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891423513] [2022-01-11 05:31:08,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:08,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:31:08,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:08,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:31:08,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:31:08,674 INFO L87 Difference]: Start difference. First operand 5819 states and 10881 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:09,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:09,015 INFO L93 Difference]: Finished difference Result 13911 states and 26015 transitions. [2022-01-11 05:31:09,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:31:09,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-01-11 05:31:09,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:09,043 INFO L225 Difference]: With dead ends: 13911 [2022-01-11 05:31:09,043 INFO L226 Difference]: Without dead ends: 8141 [2022-01-11 05:31:09,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:31:09,054 INFO L933 BasicCegarLoop]: 15159 mSDtfsCounter, 10769 mSDsluCounter, 4362 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10769 SdHoareTripleChecker+Valid, 19521 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 [2022-01-11 05:31:09,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10769 Valid, 19521 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:31:09,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8141 states. [2022-01-11 05:31:09,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8141 to 5819. [2022-01-11 05:31:09,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5819 states, 5814 states have (on average 1.8672170622635018) internal successors, (10856), 5818 states have internal predecessors, (10856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:09,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5819 states to 5819 states and 10856 transitions. [2022-01-11 05:31:09,202 INFO L78 Accepts]: Start accepts. Automaton has 5819 states and 10856 transitions. Word has length 53 [2022-01-11 05:31:09,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:09,203 INFO L470 AbstractCegarLoop]: Abstraction has 5819 states and 10856 transitions. [2022-01-11 05:31:09,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:09,206 INFO L276 IsEmpty]: Start isEmpty. Operand 5819 states and 10856 transitions. [2022-01-11 05:31:09,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-11 05:31:09,215 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:09,215 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] [2022-01-11 05:31:09,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 05:31:09,215 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)] === [2022-01-11 05:31:09,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:09,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1895691955, now seen corresponding path program 1 times [2022-01-11 05:31:09,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:09,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275879640] [2022-01-11 05:31:09,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:09,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:09,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:09,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:09,350 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:09,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275879640] [2022-01-11 05:31:09,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275879640] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:09,351 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:09,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:31:09,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324799137] [2022-01-11 05:31:09,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:09,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:31:09,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:09,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:31:09,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:31:09,354 INFO L87 Difference]: Start difference. First operand 5819 states and 10856 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:10,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:10,049 INFO L93 Difference]: Finished difference Result 24306 states and 45422 transitions. [2022-01-11 05:31:10,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-11 05:31:10,050 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2022-01-11 05:31:10,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:10,107 INFO L225 Difference]: With dead ends: 24306 [2022-01-11 05:31:10,108 INFO L226 Difference]: Without dead ends: 18515 [2022-01-11 05:31:10,121 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 [2022-01-11 05:31:10,124 INFO L933 BasicCegarLoop]: 30244 mSDtfsCounter, 32248 mSDsluCounter, 28293 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32248 SdHoareTripleChecker+Valid, 58537 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:10,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32248 Valid, 58537 Invalid, 69 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:31:10,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18515 states. [2022-01-11 05:31:10,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18515 to 5801. [2022-01-11 05:31:10,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5801 states, 5796 states have (on average 1.8688750862663905) internal successors, (10832), 5800 states have internal predecessors, (10832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:10,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5801 states to 5801 states and 10832 transitions. [2022-01-11 05:31:10,333 INFO L78 Accepts]: Start accepts. Automaton has 5801 states and 10832 transitions. Word has length 56 [2022-01-11 05:31:10,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:10,334 INFO L470 AbstractCegarLoop]: Abstraction has 5801 states and 10832 transitions. [2022-01-11 05:31:10,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:10,334 INFO L276 IsEmpty]: Start isEmpty. Operand 5801 states and 10832 transitions. [2022-01-11 05:31:10,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-11 05:31:10,336 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:10,336 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:31:10,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 05:31:10,336 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)] === [2022-01-11 05:31:10,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:10,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1703485708, now seen corresponding path program 1 times [2022-01-11 05:31:10,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:10,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879345019] [2022-01-11 05:31:10,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:10,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:10,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:10,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:10,407 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:10,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879345019] [2022-01-11 05:31:10,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879345019] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:10,407 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:10,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:31:10,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742447885] [2022-01-11 05:31:10,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:10,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:31:10,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:10,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:31:10,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:31:10,408 INFO L87 Difference]: Start difference. First operand 5801 states and 10832 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:10,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:10,931 INFO L93 Difference]: Finished difference Result 23063 states and 43107 transitions. [2022-01-11 05:31:10,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:31:10,931 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-01-11 05:31:10,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:10,970 INFO L225 Difference]: With dead ends: 23063 [2022-01-11 05:31:10,970 INFO L226 Difference]: Without dead ends: 17284 [2022-01-11 05:31:10,982 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:31:10,988 INFO L933 BasicCegarLoop]: 17200 mSDtfsCounter, 32305 mSDsluCounter, 32241 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32305 SdHoareTripleChecker+Valid, 49441 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:10,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32305 Valid, 49441 Invalid, 47 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:31:11,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17284 states. [2022-01-11 05:31:11,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17284 to 5805. [2022-01-11 05:31:11,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5805 states, 5800 states have (on average 1.868103448275862) internal successors, (10835), 5804 states have internal predecessors, (10835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:11,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5805 states to 5805 states and 10835 transitions. [2022-01-11 05:31:11,310 INFO L78 Accepts]: Start accepts. Automaton has 5805 states and 10835 transitions. Word has length 58 [2022-01-11 05:31:11,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:11,311 INFO L470 AbstractCegarLoop]: Abstraction has 5805 states and 10835 transitions. [2022-01-11 05:31:11,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:11,311 INFO L276 IsEmpty]: Start isEmpty. Operand 5805 states and 10835 transitions. [2022-01-11 05:31:11,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-11 05:31:11,312 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:11,313 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:31:11,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 05:31:11,313 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)] === [2022-01-11 05:31:11,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:11,313 INFO L85 PathProgramCache]: Analyzing trace with hash 520138411, now seen corresponding path program 1 times [2022-01-11 05:31:11,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:11,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583390252] [2022-01-11 05:31:11,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:11,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:11,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:11,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:11,442 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:11,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583390252] [2022-01-11 05:31:11,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583390252] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:11,443 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:11,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:31:11,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133341917] [2022-01-11 05:31:11,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:11,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:31:11,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:11,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:31:11,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:31:11,444 INFO L87 Difference]: Start difference. First operand 5805 states and 10835 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:12,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:12,059 INFO L93 Difference]: Finished difference Result 23279 states and 43490 transitions. [2022-01-11 05:31:12,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 05:31:12,060 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-01-11 05:31:12,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:12,106 INFO L225 Difference]: With dead ends: 23279 [2022-01-11 05:31:12,106 INFO L226 Difference]: Without dead ends: 17489 [2022-01-11 05:31:12,116 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 [2022-01-11 05:31:12,117 INFO L933 BasicCegarLoop]: 32652 mSDtfsCounter, 39056 mSDsluCounter, 43899 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39056 SdHoareTripleChecker+Valid, 76551 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:12,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39056 Valid, 76551 Invalid, 46 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:31:12,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17489 states. [2022-01-11 05:31:12,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17489 to 5797. [2022-01-11 05:31:12,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5797 states, 5792 states have (on average 1.8686118784530388) internal successors, (10823), 5796 states have internal predecessors, (10823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:12,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5797 states to 5797 states and 10823 transitions. [2022-01-11 05:31:12,334 INFO L78 Accepts]: Start accepts. Automaton has 5797 states and 10823 transitions. Word has length 58 [2022-01-11 05:31:12,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:12,335 INFO L470 AbstractCegarLoop]: Abstraction has 5797 states and 10823 transitions. [2022-01-11 05:31:12,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:12,335 INFO L276 IsEmpty]: Start isEmpty. Operand 5797 states and 10823 transitions. [2022-01-11 05:31:12,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-11 05:31:12,337 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:12,337 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:31:12,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 05:31:12,337 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:31:12,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:12,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1573350275, now seen corresponding path program 1 times [2022-01-11 05:31:12,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:12,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300725627] [2022-01-11 05:31:12,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:12,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:12,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:12,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:12,421 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:12,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300725627] [2022-01-11 05:31:12,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300725627] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:12,421 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:12,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:31:12,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476773262] [2022-01-11 05:31:12,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:12,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:31:12,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:12,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:31:12,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:31:12,422 INFO L87 Difference]: Start difference. First operand 5797 states and 10823 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:12,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:12,790 INFO L93 Difference]: Finished difference Result 16204 states and 30277 transitions. [2022-01-11 05:31:12,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:31:12,791 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2022-01-11 05:31:12,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:12,813 INFO L225 Difference]: With dead ends: 16204 [2022-01-11 05:31:12,813 INFO L226 Difference]: Without dead ends: 10435 [2022-01-11 05:31:12,821 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 [2022-01-11 05:31:12,822 INFO L933 BasicCegarLoop]: 10785 mSDtfsCounter, 41041 mSDsluCounter, 13029 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41041 SdHoareTripleChecker+Valid, 23814 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 [2022-01-11 05:31:12,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41041 Valid, 23814 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:31:12,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10435 states. [2022-01-11 05:31:13,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10435 to 5799. [2022-01-11 05:31:13,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5799 states, 5794 states have (on average 1.8681394546082153) internal successors, (10824), 5798 states have internal predecessors, (10824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:13,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5799 states to 5799 states and 10824 transitions. [2022-01-11 05:31:13,116 INFO L78 Accepts]: Start accepts. Automaton has 5799 states and 10824 transitions. Word has length 59 [2022-01-11 05:31:13,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:13,117 INFO L470 AbstractCegarLoop]: Abstraction has 5799 states and 10824 transitions. [2022-01-11 05:31:13,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:13,117 INFO L276 IsEmpty]: Start isEmpty. Operand 5799 states and 10824 transitions. [2022-01-11 05:31:13,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-11 05:31:13,119 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:13,119 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:31:13,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 05:31:13,119 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)] === [2022-01-11 05:31:13,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:13,119 INFO L85 PathProgramCache]: Analyzing trace with hash -113576410, now seen corresponding path program 1 times [2022-01-11 05:31:13,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:13,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667132887] [2022-01-11 05:31:13,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:13,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:13,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:13,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:13,195 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:13,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667132887] [2022-01-11 05:31:13,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667132887] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:13,195 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:13,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:31:13,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817866077] [2022-01-11 05:31:13,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:13,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:31:13,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:13,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:31:13,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:31:13,197 INFO L87 Difference]: Start difference. First operand 5799 states and 10824 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:14,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:14,812 INFO L93 Difference]: Finished difference Result 16342 states and 30560 transitions. [2022-01-11 05:31:14,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:31:14,813 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-01-11 05:31:14,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:14,831 INFO L225 Difference]: With dead ends: 16342 [2022-01-11 05:31:14,831 INFO L226 Difference]: Without dead ends: 10579 [2022-01-11 05:31:14,842 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 [2022-01-11 05:31:14,843 INFO L933 BasicCegarLoop]: 10794 mSDtfsCounter, 28671 mSDsluCounter, 8893 mSDsCounter, 0 mSdLazyCounter, 1235 mSolverCounterSat, 355 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28671 SdHoareTripleChecker+Valid, 19687 SdHoareTripleChecker+Invalid, 1590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 355 IncrementalHoareTripleChecker+Valid, 1235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:14,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28671 Valid, 19687 Invalid, 1590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [355 Valid, 1235 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-11 05:31:14,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10579 states. [2022-01-11 05:31:15,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10579 to 5799. [2022-01-11 05:31:15,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5799 states, 5794 states have (on average 1.8398343113565758) internal successors, (10660), 5798 states have internal predecessors, (10660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:15,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5799 states to 5799 states and 10660 transitions. [2022-01-11 05:31:15,047 INFO L78 Accepts]: Start accepts. Automaton has 5799 states and 10660 transitions. Word has length 60 [2022-01-11 05:31:15,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:15,048 INFO L470 AbstractCegarLoop]: Abstraction has 5799 states and 10660 transitions. [2022-01-11 05:31:15,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:15,048 INFO L276 IsEmpty]: Start isEmpty. Operand 5799 states and 10660 transitions. [2022-01-11 05:31:15,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-01-11 05:31:15,050 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:15,050 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:31:15,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 05:31:15,051 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)] === [2022-01-11 05:31:15,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:15,051 INFO L85 PathProgramCache]: Analyzing trace with hash -763885441, now seen corresponding path program 1 times [2022-01-11 05:31:15,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:15,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477668476] [2022-01-11 05:31:15,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:15,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:15,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:15,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:15,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:15,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477668476] [2022-01-11 05:31:15,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477668476] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:15,128 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:15,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:31:15,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691759810] [2022-01-11 05:31:15,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:15,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:31:15,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:15,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:31:15,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:31:15,129 INFO L87 Difference]: Start difference. First operand 5799 states and 10660 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:20,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:20,835 INFO L93 Difference]: Finished difference Result 60994 states and 113433 transitions. [2022-01-11 05:31:20,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-11 05:31:20,836 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-01-11 05:31:20,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:20,940 INFO L225 Difference]: With dead ends: 60994 [2022-01-11 05:31:20,940 INFO L226 Difference]: Without dead ends: 55249 [2022-01-11 05:31:20,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2022-01-11 05:31:20,960 INFO L933 BasicCegarLoop]: 51311 mSDtfsCounter, 67537 mSDsluCounter, 157950 mSDsCounter, 0 mSdLazyCounter, 4949 mSolverCounterSat, 405 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67537 SdHoareTripleChecker+Valid, 209261 SdHoareTripleChecker+Invalid, 5354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 405 IncrementalHoareTripleChecker+Valid, 4949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:20,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67537 Valid, 209261 Invalid, 5354 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [405 Valid, 4949 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-01-11 05:31:21,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55249 states. [2022-01-11 05:31:21,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55249 to 11490. [2022-01-11 05:31:21,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11490 states, 11485 states have (on average 1.8408358728776666) internal successors, (21142), 11489 states have internal predecessors, (21142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:21,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11490 states to 11490 states and 21142 transitions. [2022-01-11 05:31:21,760 INFO L78 Accepts]: Start accepts. Automaton has 11490 states and 21142 transitions. Word has length 72 [2022-01-11 05:31:21,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:21,760 INFO L470 AbstractCegarLoop]: Abstraction has 11490 states and 21142 transitions. [2022-01-11 05:31:21,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:21,760 INFO L276 IsEmpty]: Start isEmpty. Operand 11490 states and 21142 transitions. [2022-01-11 05:31:21,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-01-11 05:31:21,763 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:21,763 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] [2022-01-11 05:31:21,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 05:31:21,763 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)] === [2022-01-11 05:31:21,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:21,764 INFO L85 PathProgramCache]: Analyzing trace with hash 86695369, now seen corresponding path program 1 times [2022-01-11 05:31:21,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:21,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492173997] [2022-01-11 05:31:21,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:21,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:21,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:21,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:21,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:21,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492173997] [2022-01-11 05:31:21,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492173997] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:21,826 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:21,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:31:21,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8415609] [2022-01-11 05:31:21,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:21,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:31:21,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:21,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:31:21,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:31:21,830 INFO L87 Difference]: Start difference. First operand 11490 states and 21142 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 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) [2022-01-11 05:31:25,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:25,701 INFO L93 Difference]: Finished difference Result 60321 states and 110944 transitions. [2022-01-11 05:31:25,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:31:25,701 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 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 [2022-01-11 05:31:25,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:25,780 INFO L225 Difference]: With dead ends: 60321 [2022-01-11 05:31:25,781 INFO L226 Difference]: Without dead ends: 48928 [2022-01-11 05:31:25,818 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:31:25,821 INFO L933 BasicCegarLoop]: 23443 mSDtfsCounter, 46851 mSDsluCounter, 43338 mSDsCounter, 0 mSdLazyCounter, 2513 mSolverCounterSat, 374 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46851 SdHoareTripleChecker+Valid, 66781 SdHoareTripleChecker+Invalid, 2887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 374 IncrementalHoareTripleChecker+Valid, 2513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:25,821 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46851 Valid, 66781 Invalid, 2887 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [374 Valid, 2513 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-01-11 05:31:25,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48928 states. [2022-01-11 05:31:26,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48928 to 16128. [2022-01-11 05:31:26,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16128 states, 16123 states have (on average 1.8384915958568504) internal successors, (29642), 16127 states have internal predecessors, (29642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:26,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16128 states to 16128 states and 29642 transitions. [2022-01-11 05:31:26,745 INFO L78 Accepts]: Start accepts. Automaton has 16128 states and 29642 transitions. Word has length 74 [2022-01-11 05:31:26,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:26,745 INFO L470 AbstractCegarLoop]: Abstraction has 16128 states and 29642 transitions. [2022-01-11 05:31:26,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 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) [2022-01-11 05:31:26,745 INFO L276 IsEmpty]: Start isEmpty. Operand 16128 states and 29642 transitions. [2022-01-11 05:31:26,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-11 05:31:26,749 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:26,749 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:31:26,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 05:31:26,749 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)] === [2022-01-11 05:31:26,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:26,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1151533890, now seen corresponding path program 1 times [2022-01-11 05:31:26,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:26,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314358871] [2022-01-11 05:31:26,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:26,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:26,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:26,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:26,805 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:26,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314358871] [2022-01-11 05:31:26,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314358871] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:26,805 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:26,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:31:26,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871665979] [2022-01-11 05:31:26,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:26,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:31:26,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:26,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:31:26,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:31:26,806 INFO L87 Difference]: Start difference. First operand 16128 states and 29642 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:31,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:31,011 INFO L93 Difference]: Finished difference Result 65428 states and 121140 transitions. [2022-01-11 05:31:31,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:31:31,012 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-01-11 05:31:31,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:31,093 INFO L225 Difference]: With dead ends: 65428 [2022-01-11 05:31:31,093 INFO L226 Difference]: Without dead ends: 49358 [2022-01-11 05:31:31,115 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:31:31,115 INFO L933 BasicCegarLoop]: 31635 mSDtfsCounter, 17847 mSDsluCounter, 29785 mSDsCounter, 0 mSdLazyCounter, 3179 mSolverCounterSat, 292 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17847 SdHoareTripleChecker+Valid, 61420 SdHoareTripleChecker+Invalid, 3471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 292 IncrementalHoareTripleChecker+Valid, 3179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:31,116 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17847 Valid, 61420 Invalid, 3471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [292 Valid, 3179 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-01-11 05:31:31,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49358 states. [2022-01-11 05:31:32,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49358 to 27538. [2022-01-11 05:31:32,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27538 states, 27533 states have (on average 1.8222496640395163) internal successors, (50172), 27537 states have internal predecessors, (50172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:32,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27538 states to 27538 states and 50172 transitions. [2022-01-11 05:31:32,304 INFO L78 Accepts]: Start accepts. Automaton has 27538 states and 50172 transitions. Word has length 75 [2022-01-11 05:31:32,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:32,305 INFO L470 AbstractCegarLoop]: Abstraction has 27538 states and 50172 transitions. [2022-01-11 05:31:32,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:32,305 INFO L276 IsEmpty]: Start isEmpty. Operand 27538 states and 50172 transitions. [2022-01-11 05:31:32,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-11 05:31:32,307 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:32,307 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:31:32,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 05:31:32,308 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)] === [2022-01-11 05:31:32,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:32,309 INFO L85 PathProgramCache]: Analyzing trace with hash -394363621, now seen corresponding path program 1 times [2022-01-11 05:31:32,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:32,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215664546] [2022-01-11 05:31:32,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:32,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:32,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:32,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:32,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:32,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215664546] [2022-01-11 05:31:32,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215664546] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:32,385 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:32,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:31:32,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862020815] [2022-01-11 05:31:32,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:32,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:31:32,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:32,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:31:32,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:31:32,386 INFO L87 Difference]: Start difference. First operand 27538 states and 50172 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:33,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:33,617 INFO L93 Difference]: Finished difference Result 57164 states and 104242 transitions. [2022-01-11 05:31:33,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:31:33,618 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-01-11 05:31:33,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:33,667 INFO L225 Difference]: With dead ends: 57164 [2022-01-11 05:31:33,668 INFO L226 Difference]: Without dead ends: 29651 [2022-01-11 05:31:33,697 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 [2022-01-11 05:31:33,697 INFO L933 BasicCegarLoop]: 12083 mSDtfsCounter, 46449 mSDsluCounter, 14538 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46449 SdHoareTripleChecker+Valid, 26621 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:33,698 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46449 Valid, 26621 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:31:33,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29651 states. [2022-01-11 05:31:34,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29651 to 17953. [2022-01-11 05:31:34,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17953 states, 17948 states have (on average 1.8224314686873189) internal successors, (32709), 17952 states have internal predecessors, (32709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:34,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17953 states to 17953 states and 32709 transitions. [2022-01-11 05:31:34,691 INFO L78 Accepts]: Start accepts. Automaton has 17953 states and 32709 transitions. Word has length 75 [2022-01-11 05:31:34,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:34,692 INFO L470 AbstractCegarLoop]: Abstraction has 17953 states and 32709 transitions. [2022-01-11 05:31:34,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:34,692 INFO L276 IsEmpty]: Start isEmpty. Operand 17953 states and 32709 transitions. [2022-01-11 05:31:34,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-11 05:31:34,693 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:34,694 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] [2022-01-11 05:31:34,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 05:31:34,694 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)] === [2022-01-11 05:31:34,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:34,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1884130096, now seen corresponding path program 1 times [2022-01-11 05:31:34,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:34,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659852792] [2022-01-11 05:31:34,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:34,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:34,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:34,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:34,743 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:34,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659852792] [2022-01-11 05:31:34,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659852792] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:34,743 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:34,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:31:34,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219230776] [2022-01-11 05:31:34,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:34,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:31:34,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:34,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:31:34,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:31:34,744 INFO L87 Difference]: Start difference. First operand 17953 states and 32709 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:40,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:40,479 INFO L93 Difference]: Finished difference Result 145404 states and 265418 transitions. [2022-01-11 05:31:40,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:31:40,479 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-01-11 05:31:40,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:40,867 INFO L225 Difference]: With dead ends: 145404 [2022-01-11 05:31:40,867 INFO L226 Difference]: Without dead ends: 127497 [2022-01-11 05:31:40,912 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:31:40,913 INFO L933 BasicCegarLoop]: 18960 mSDtfsCounter, 71280 mSDsluCounter, 51658 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 238 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71280 SdHoareTripleChecker+Valid, 70618 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 238 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:40,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71280 Valid, 70618 Invalid, 536 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [238 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-11 05:31:40,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127497 states. [2022-01-11 05:31:43,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127497 to 34780. [2022-01-11 05:31:43,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34780 states, 34775 states have (on average 1.8223148813803018) internal successors, (63371), 34779 states have internal predecessors, (63371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:43,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34780 states to 34780 states and 63371 transitions. [2022-01-11 05:31:43,209 INFO L78 Accepts]: Start accepts. Automaton has 34780 states and 63371 transitions. Word has length 77 [2022-01-11 05:31:43,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:43,209 INFO L470 AbstractCegarLoop]: Abstraction has 34780 states and 63371 transitions. [2022-01-11 05:31:43,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:43,209 INFO L276 IsEmpty]: Start isEmpty. Operand 34780 states and 63371 transitions. [2022-01-11 05:31:43,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-11 05:31:43,225 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:43,225 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] [2022-01-11 05:31:43,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 05:31:43,226 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:31:43,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:43,226 INFO L85 PathProgramCache]: Analyzing trace with hash 66170159, now seen corresponding path program 1 times [2022-01-11 05:31:43,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:43,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686177034] [2022-01-11 05:31:43,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:43,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:43,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:43,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:43,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:43,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686177034] [2022-01-11 05:31:43,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686177034] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:43,285 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:43,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:31:43,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728631233] [2022-01-11 05:31:43,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:43,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:31:43,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:43,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:31:43,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:31:43,286 INFO L87 Difference]: Start difference. First operand 34780 states and 63371 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:48,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:48,556 INFO L93 Difference]: Finished difference Result 100608 states and 184785 transitions. [2022-01-11 05:31:48,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-11 05:31:48,556 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-01-11 05:31:48,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:48,702 INFO L225 Difference]: With dead ends: 100608 [2022-01-11 05:31:48,703 INFO L226 Difference]: Without dead ends: 81731 [2022-01-11 05:31:48,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2022-01-11 05:31:48,731 INFO L933 BasicCegarLoop]: 22248 mSDtfsCounter, 60306 mSDsluCounter, 71658 mSDsCounter, 0 mSdLazyCounter, 1635 mSolverCounterSat, 356 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60306 SdHoareTripleChecker+Valid, 93906 SdHoareTripleChecker+Invalid, 1991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 356 IncrementalHoareTripleChecker+Valid, 1635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:48,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60306 Valid, 93906 Invalid, 1991 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [356 Valid, 1635 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-11 05:31:48,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81731 states. [2022-01-11 05:31:50,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81731 to 34780. [2022-01-11 05:31:50,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34780 states, 34775 states have (on average 1.8209345794392524) internal successors, (63323), 34779 states have internal predecessors, (63323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:50,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34780 states to 34780 states and 63323 transitions. [2022-01-11 05:31:50,632 INFO L78 Accepts]: Start accepts. Automaton has 34780 states and 63323 transitions. Word has length 77 [2022-01-11 05:31:50,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:50,632 INFO L470 AbstractCegarLoop]: Abstraction has 34780 states and 63323 transitions. [2022-01-11 05:31:50,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:50,633 INFO L276 IsEmpty]: Start isEmpty. Operand 34780 states and 63323 transitions. [2022-01-11 05:31:50,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-01-11 05:31:50,634 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:50,634 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] [2022-01-11 05:31:50,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 05:31:50,635 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:31:50,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:50,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1251238566, now seen corresponding path program 1 times [2022-01-11 05:31:50,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:50,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135407949] [2022-01-11 05:31:50,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:50,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:50,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:50,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:50,711 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:50,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135407949] [2022-01-11 05:31:50,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135407949] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:50,712 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:50,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:31:50,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667253075] [2022-01-11 05:31:50,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:50,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:31:50,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:50,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:31:50,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:31:50,713 INFO L87 Difference]: Start difference. First operand 34780 states and 63323 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) [2022-01-11 05:31:53,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:53,903 INFO L93 Difference]: Finished difference Result 72728 states and 131694 transitions. [2022-01-11 05:31:53,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-11 05:31:53,904 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 [2022-01-11 05:31:53,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:53,989 INFO L225 Difference]: With dead ends: 72728 [2022-01-11 05:31:53,989 INFO L226 Difference]: Without dead ends: 54033 [2022-01-11 05:31:54,007 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:31:54,008 INFO L933 BasicCegarLoop]: 18409 mSDtfsCounter, 15275 mSDsluCounter, 39341 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15275 SdHoareTripleChecker+Valid, 57750 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:54,008 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15275 Valid, 57750 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-11 05:31:54,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54033 states. [2022-01-11 05:31:55,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54033 to 34876. [2022-01-11 05:31:55,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34876 states, 34871 states have (on average 1.8186745433167961) internal successors, (63419), 34875 states have internal predecessors, (63419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:56,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34876 states to 34876 states and 63419 transitions. [2022-01-11 05:31:56,006 INFO L78 Accepts]: Start accepts. Automaton has 34876 states and 63419 transitions. Word has length 79 [2022-01-11 05:31:56,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:56,007 INFO L470 AbstractCegarLoop]: Abstraction has 34876 states and 63419 transitions. [2022-01-11 05:31:56,007 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) [2022-01-11 05:31:56,007 INFO L276 IsEmpty]: Start isEmpty. Operand 34876 states and 63419 transitions. [2022-01-11 05:31:56,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-01-11 05:31:56,011 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:56,011 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] [2022-01-11 05:31:56,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 05:31:56,011 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:31:56,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:56,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1224681095, now seen corresponding path program 1 times [2022-01-11 05:31:56,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:56,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79971456] [2022-01-11 05:31:56,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:56,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:56,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:56,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:56,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:56,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79971456] [2022-01-11 05:31:56,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79971456] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:56,094 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:56,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:31:56,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375983580] [2022-01-11 05:31:56,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:56,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:31:56,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:56,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:31:56,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:31:56,095 INFO L87 Difference]: Start difference. First operand 34876 states and 63419 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:59,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:59,564 INFO L93 Difference]: Finished difference Result 79429 states and 145422 transitions. [2022-01-11 05:31:59,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:31:59,564 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 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 87 [2022-01-11 05:31:59,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:59,656 INFO L225 Difference]: With dead ends: 79429 [2022-01-11 05:31:59,656 INFO L226 Difference]: Without dead ends: 54527 [2022-01-11 05:31:59,678 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:31:59,679 INFO L933 BasicCegarLoop]: 9374 mSDtfsCounter, 8291 mSDsluCounter, 8411 mSDsCounter, 0 mSdLazyCounter, 846 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8291 SdHoareTripleChecker+Valid, 17785 SdHoareTripleChecker+Invalid, 1067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:59,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8291 Valid, 17785 Invalid, 1067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 846 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-11 05:31:59,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54527 states. [2022-01-11 05:32:01,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54527 to 34876. [2022-01-11 05:32:01,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34876 states, 34871 states have (on average 1.8100714060394023) internal successors, (63119), 34875 states have internal predecessors, (63119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:01,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34876 states to 34876 states and 63119 transitions. [2022-01-11 05:32:01,575 INFO L78 Accepts]: Start accepts. Automaton has 34876 states and 63119 transitions. Word has length 87 [2022-01-11 05:32:01,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:01,575 INFO L470 AbstractCegarLoop]: Abstraction has 34876 states and 63119 transitions. [2022-01-11 05:32:01,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:01,576 INFO L276 IsEmpty]: Start isEmpty. Operand 34876 states and 63119 transitions. [2022-01-11 05:32:01,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-01-11 05:32:01,577 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:01,577 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] [2022-01-11 05:32:01,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 05:32:01,578 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:01,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:01,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1776464566, now seen corresponding path program 1 times [2022-01-11 05:32:01,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:01,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775010833] [2022-01-11 05:32:01,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:01,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:01,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:01,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:01,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:01,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775010833] [2022-01-11 05:32:01,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775010833] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:01,646 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:01,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 05:32:01,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307800589] [2022-01-11 05:32:01,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:01,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:32:01,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:01,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:32:01,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:01,647 INFO L87 Difference]: Start difference. First operand 34876 states and 63119 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)