/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_NONE.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec14_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 23:43:11,332 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 23:43:11,334 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 23:43:11,387 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 23:43:11,388 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 23:43:11,390 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 23:43:11,399 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 23:43:11,402 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 23:43:11,403 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 23:43:11,407 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 23:43:11,407 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 23:43:11,408 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 23:43:11,409 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 23:43:11,410 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 23:43:11,411 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 23:43:11,414 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 23:43:11,414 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 23:43:11,415 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 23:43:11,416 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 23:43:11,421 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 23:43:11,422 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 23:43:11,423 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 23:43:11,424 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 23:43:11,425 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 23:43:11,429 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 23:43:11,429 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 23:43:11,430 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 23:43:11,431 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 23:43:11,431 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 23:43:11,431 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 23:43:11,432 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 23:43:11,432 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 23:43:11,433 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 23:43:11,433 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 23:43:11,434 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 23:43:11,434 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 23:43:11,435 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 23:43:11,435 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 23:43:11,435 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 23:43:11,435 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 23:43:11,436 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 23:43:11,437 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-10 23:43:11,461 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 23:43:11,461 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 23:43:11,461 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 23:43:11,461 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 23:43:11,462 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 23:43:11,462 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 23:43:11,462 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 23:43:11,462 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 23:43:11,463 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 23:43:11,463 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 23:43:11,463 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 23:43:11,463 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 23:43:11,463 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 23:43:11,463 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 23:43:11,464 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 23:43:11,464 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 23:43:11,464 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 23:43:11,464 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 23:43:11,464 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 23:43:11,464 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 23:43:11,464 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 23:43:11,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:43:11,464 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 23:43:11,464 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 23:43:11,464 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 23:43:11,464 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 23:43:11,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 23:43:11,465 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 23:43:11,465 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 23:43:11,465 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 23:43:11,465 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 23:43:11,465 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 23:43:11,466 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 23:43:11,466 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 23:43:11,655 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 23:43:11,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 23:43:11,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 23:43:11,678 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 23:43:11,679 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 23:43:11,679 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec14_product28.cil.c [2022-01-10 23:43:11,737 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ed90840b/56d1d14056444b00a5f27b187ac88ea8/FLAG3fc380ae6 [2022-01-10 23:43:12,180 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 23:43:12,180 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec14_product28.cil.c [2022-01-10 23:43:12,197 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ed90840b/56d1d14056444b00a5f27b187ac88ea8/FLAG3fc380ae6 [2022-01-10 23:43:12,209 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ed90840b/56d1d14056444b00a5f27b187ac88ea8 [2022-01-10 23:43:12,211 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 23:43:12,212 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 23:43:12,213 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 23:43:12,213 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 23:43:12,215 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 23:43:12,215 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:43:12" (1/1) ... [2022-01-10 23:43:12,216 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cf34976 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:43:12, skipping insertion in model container [2022-01-10 23:43:12,216 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:43:12" (1/1) ... [2022-01-10 23:43:12,220 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 23:43:12,290 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:43:12,638 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_product28.cil.c[43703,43716] [2022-01-10 23:43:12,706 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:43:12,720 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 23:43:12,740 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:43:12,785 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_product28.cil.c[43703,43716] [2022-01-10 23:43:12,804 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:43:12,810 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 23:43:12,854 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_product28.cil.c[43703,43716] [2022-01-10 23:43:12,885 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:43:12,912 INFO L208 MainTranslator]: Completed translation [2022-01-10 23:43:12,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:43:12 WrapperNode [2022-01-10 23:43:12,912 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 23:43:12,913 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 23:43:12,914 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 23:43:12,914 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 23:43:12,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:43:12" (1/1) ... [2022-01-10 23:43:12,955 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:43:12" (1/1) ... [2022-01-10 23:43:13,317 INFO L137 Inliner]: procedures = 96, calls = 341, calls flagged for inlining = 193, calls inlined = 1451, statements flattened = 44124 [2022-01-10 23:43:13,317 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 23:43:13,318 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 23:43:13,318 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 23:43:13,318 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 23:43:13,323 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:43:12" (1/1) ... [2022-01-10 23:43:13,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:43:12" (1/1) ... [2022-01-10 23:43:13,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:43:12" (1/1) ... [2022-01-10 23:43:13,383 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:43:12" (1/1) ... [2022-01-10 23:43:13,716 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:43:12" (1/1) ... [2022-01-10 23:43:13,944 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:43:12" (1/1) ... [2022-01-10 23:43:13,983 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:43:12" (1/1) ... [2022-01-10 23:43:14,140 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 23:43:14,141 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 23:43:14,141 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 23:43:14,142 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 23:43:14,142 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:43:12" (1/1) ... [2022-01-10 23:43:14,153 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:43:14,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 23:43:14,176 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 23:43:14,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 23:43:14,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 23:43:14,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 23:43:14,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 23:43:14,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 23:43:14,365 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 23:43:14,366 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 23:43:26,671 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 23:43:26,740 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 23:43:26,740 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 23:43:26,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:43:26 BoogieIcfgContainer [2022-01-10 23:43:26,752 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 23:43:26,753 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 23:43:26,753 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 23:43:26,754 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 23:43:26,756 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:43:26" (1/1) ... [2022-01-10 23:43:28,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:43:28 BasicIcfg [2022-01-10 23:43:28,787 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 23:43:28,788 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 23:43:28,788 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 23:43:28,790 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 23:43:28,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 11:43:12" (1/4) ... [2022-01-10 23:43:28,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11ae817a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:43:28, skipping insertion in model container [2022-01-10 23:43:28,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:43:12" (2/4) ... [2022-01-10 23:43:28,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11ae817a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:43:28, skipping insertion in model container [2022-01-10 23:43:28,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:43:26" (3/4) ... [2022-01-10 23:43:28,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11ae817a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 11:43:28, skipping insertion in model container [2022-01-10 23:43:28,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:43:28" (4/4) ... [2022-01-10 23:43:28,793 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product28.cil.cTransformedIcfg [2022-01-10 23:43:28,797 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 23:43:28,797 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-01-10 23:43:28,857 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 23:43:28,864 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 23:43:28,864 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-10 23:43:29,019 INFO L276 IsEmpty]: Start isEmpty. Operand has 12386 states, 12380 states have (on average 1.865751211631664) internal successors, (23098), 12385 states have internal predecessors, (23098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:29,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-01-10 23:43:29,029 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:43:29,030 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] [2022-01-10 23:43:29,031 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:43:29,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:43:29,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1476473923, now seen corresponding path program 1 times [2022-01-10 23:43:29,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:43:29,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175331512] [2022-01-10 23:43:29,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:43:29,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:43:29,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:43:29,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:43:29,340 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:43:29,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175331512] [2022-01-10 23:43:29,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175331512] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:43:29,341 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:43:29,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:43:29,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293273525] [2022-01-10 23:43:29,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:43:29,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:43:29,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:43:29,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:43:29,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:43:29,437 INFO L87 Difference]: Start difference. First operand has 12386 states, 12380 states have (on average 1.865751211631664) internal successors, (23098), 12385 states have internal predecessors, (23098), 0 states have call successors, (0), 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 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:30,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:43:30,008 INFO L93 Difference]: Finished difference Result 29741 states and 55469 transitions. [2022-01-10 23:43:30,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:43:30,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 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 30 [2022-01-10 23:43:30,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:43:30,096 INFO L225 Difference]: With dead ends: 29741 [2022-01-10 23:43:30,096 INFO L226 Difference]: Without dead ends: 17354 [2022-01-10 23:43:30,125 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:43:30,133 INFO L933 BasicCegarLoop]: 32368 mSDtfsCounter, 23060 mSDsluCounter, 9301 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23060 SdHoareTripleChecker+Valid, 41669 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:43:30,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23060 Valid, 41669 Invalid, 24 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:43:30,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17354 states. [2022-01-10 23:43:30,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17354 to 12374. [2022-01-10 23:43:30,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12374 states, 12369 states have (on average 1.8652275850917617) internal successors, (23071), 12373 states have internal predecessors, (23071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:30,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12374 states to 12374 states and 23071 transitions. [2022-01-10 23:43:30,651 INFO L78 Accepts]: Start accepts. Automaton has 12374 states and 23071 transitions. Word has length 30 [2022-01-10 23:43:30,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:43:30,652 INFO L470 AbstractCegarLoop]: Abstraction has 12374 states and 23071 transitions. [2022-01-10 23:43:30,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:30,652 INFO L276 IsEmpty]: Start isEmpty. Operand 12374 states and 23071 transitions. [2022-01-10 23:43:30,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-10 23:43:30,654 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:43:30,654 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] [2022-01-10 23:43:30,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 23:43:30,654 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:43:30,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:43:30,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1695073691, now seen corresponding path program 1 times [2022-01-10 23:43:30,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:43:30,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334678599] [2022-01-10 23:43:30,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:43:30,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:43:30,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:43:30,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:43:30,728 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:43:30,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334678599] [2022-01-10 23:43:30,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334678599] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:43:30,728 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:43:30,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:43:30,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563984291] [2022-01-10 23:43:30,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:43:30,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:43:30,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:43:30,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:43:30,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:43:30,730 INFO L87 Difference]: Start difference. First operand 12374 states and 23071 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:31,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:43:31,310 INFO L93 Difference]: Finished difference Result 29643 states and 55271 transitions. [2022-01-10 23:43:31,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:43:31,311 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 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 35 [2022-01-10 23:43:31,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:43:31,369 INFO L225 Difference]: With dead ends: 29643 [2022-01-10 23:43:31,370 INFO L226 Difference]: Without dead ends: 17318 [2022-01-10 23:43:31,391 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:43:31,392 INFO L933 BasicCegarLoop]: 32225 mSDtfsCounter, 22959 mSDsluCounter, 9238 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22959 SdHoareTripleChecker+Valid, 41463 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 23:43:31,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22959 Valid, 41463 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 23:43:31,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17318 states. [2022-01-10 23:43:31,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17318 to 12374. [2022-01-10 23:43:31,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12374 states, 12369 states have (on average 1.8632064031045354) internal successors, (23046), 12373 states have internal predecessors, (23046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:31,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12374 states to 12374 states and 23046 transitions. [2022-01-10 23:43:31,801 INFO L78 Accepts]: Start accepts. Automaton has 12374 states and 23046 transitions. Word has length 35 [2022-01-10 23:43:31,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:43:31,801 INFO L470 AbstractCegarLoop]: Abstraction has 12374 states and 23046 transitions. [2022-01-10 23:43:31,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:31,802 INFO L276 IsEmpty]: Start isEmpty. Operand 12374 states and 23046 transitions. [2022-01-10 23:43:31,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-01-10 23:43:31,803 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:43:31,803 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] [2022-01-10 23:43:31,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 23:43:31,803 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:43:31,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:43:31,804 INFO L85 PathProgramCache]: Analyzing trace with hash -550555822, now seen corresponding path program 1 times [2022-01-10 23:43:31,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:43:31,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663423997] [2022-01-10 23:43:31,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:43:31,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:43:31,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:43:31,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:43:31,887 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:43:31,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663423997] [2022-01-10 23:43:31,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663423997] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:43:31,888 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:43:31,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:43:31,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773044694] [2022-01-10 23:43:31,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:43:31,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:43:31,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:43:31,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:43:31,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:43:31,889 INFO L87 Difference]: Start difference. First operand 12374 states and 23046 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:33,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:43:33,313 INFO L93 Difference]: Finished difference Result 51837 states and 96620 transitions. [2022-01-10 23:43:33,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 23:43:33,313 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 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 38 [2022-01-10 23:43:33,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:43:33,412 INFO L225 Difference]: With dead ends: 51837 [2022-01-10 23:43:33,412 INFO L226 Difference]: Without dead ends: 39491 [2022-01-10 23:43:33,436 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-10 23:43:33,438 INFO L933 BasicCegarLoop]: 64376 mSDtfsCounter, 68839 mSDsluCounter, 59937 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68839 SdHoareTripleChecker+Valid, 124313 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:43:33,439 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68839 Valid, 124313 Invalid, 60 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:43:33,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39491 states. [2022-01-10 23:43:33,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39491 to 12356. [2022-01-10 23:43:33,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12356 states, 12351 states have (on average 1.8639786252125334) internal successors, (23022), 12355 states have internal predecessors, (23022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:33,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12356 states to 12356 states and 23022 transitions. [2022-01-10 23:43:33,948 INFO L78 Accepts]: Start accepts. Automaton has 12356 states and 23022 transitions. Word has length 38 [2022-01-10 23:43:33,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:43:33,948 INFO L470 AbstractCegarLoop]: Abstraction has 12356 states and 23022 transitions. [2022-01-10 23:43:33,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:33,948 INFO L276 IsEmpty]: Start isEmpty. Operand 12356 states and 23022 transitions. [2022-01-10 23:43:33,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-10 23:43:33,951 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:43:33,951 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] [2022-01-10 23:43:33,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 23:43:33,952 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:43:33,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:43:33,952 INFO L85 PathProgramCache]: Analyzing trace with hash -462044821, now seen corresponding path program 1 times [2022-01-10 23:43:33,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:43:33,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288638508] [2022-01-10 23:43:33,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:43:33,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:43:34,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:43:34,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:43:34,039 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:43:34,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288638508] [2022-01-10 23:43:34,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288638508] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:43:34,039 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:43:34,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 23:43:34,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16483845] [2022-01-10 23:43:34,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:43:34,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 23:43:34,040 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:43:34,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 23:43:34,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 23:43:34,041 INFO L87 Difference]: Start difference. First operand 12356 states and 23022 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:35,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:43:35,018 INFO L93 Difference]: Finished difference Result 49283 states and 91867 transitions. [2022-01-10 23:43:35,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 23:43:35,019 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 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 40 [2022-01-10 23:43:35,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:43:35,093 INFO L225 Difference]: With dead ends: 49283 [2022-01-10 23:43:35,094 INFO L226 Difference]: Without dead ends: 36949 [2022-01-10 23:43:35,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:43:35,118 INFO L933 BasicCegarLoop]: 36704 mSDtfsCounter, 68875 mSDsluCounter, 68811 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68875 SdHoareTripleChecker+Valid, 105515 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 [2022-01-10 23:43:35,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68875 Valid, 105515 Invalid, 47 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:43:35,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36949 states. [2022-01-10 23:43:35,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36949 to 12360. [2022-01-10 23:43:35,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12360 states, 12355 states have (on average 1.8636179684338325) internal successors, (23025), 12359 states have internal predecessors, (23025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:35,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12360 states to 12360 states and 23025 transitions. [2022-01-10 23:43:35,603 INFO L78 Accepts]: Start accepts. Automaton has 12360 states and 23025 transitions. Word has length 40 [2022-01-10 23:43:35,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:43:35,604 INFO L470 AbstractCegarLoop]: Abstraction has 12360 states and 23025 transitions. [2022-01-10 23:43:35,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:35,604 INFO L276 IsEmpty]: Start isEmpty. Operand 12360 states and 23025 transitions. [2022-01-10 23:43:35,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-10 23:43:35,604 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:43:35,604 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] [2022-01-10 23:43:35,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 23:43:35,605 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:43:35,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:43:35,606 INFO L85 PathProgramCache]: Analyzing trace with hash -716781366, now seen corresponding path program 1 times [2022-01-10 23:43:35,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:43:35,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323552166] [2022-01-10 23:43:35,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:43:35,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:43:35,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:43:35,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:43:35,702 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:43:35,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323552166] [2022-01-10 23:43:35,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323552166] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:43:35,703 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:43:35,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 23:43:35,703 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582065255] [2022-01-10 23:43:35,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:43:35,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 23:43:35,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:43:35,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 23:43:35,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-10 23:43:35,704 INFO L87 Difference]: Start difference. First operand 12360 states and 23025 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:37,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:43:37,012 INFO L93 Difference]: Finished difference Result 49499 states and 92250 transitions. [2022-01-10 23:43:37,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 23:43:37,014 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 0 states have call successors, (0), 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 40 [2022-01-10 23:43:37,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:43:37,099 INFO L225 Difference]: With dead ends: 49499 [2022-01-10 23:43:37,099 INFO L226 Difference]: Without dead ends: 37154 [2022-01-10 23:43:37,121 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-10 23:43:37,121 INFO L933 BasicCegarLoop]: 69222 mSDtfsCounter, 96670 mSDsluCounter, 64800 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96670 SdHoareTripleChecker+Valid, 134022 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:43:37,121 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96670 Valid, 134022 Invalid, 41 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:43:37,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37154 states. [2022-01-10 23:43:37,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37154 to 12352. [2022-01-10 23:43:37,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12352 states, 12347 states have (on average 1.8638535676682595) internal successors, (23013), 12351 states have internal predecessors, (23013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:37,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12352 states to 12352 states and 23013 transitions. [2022-01-10 23:43:37,564 INFO L78 Accepts]: Start accepts. Automaton has 12352 states and 23013 transitions. Word has length 40 [2022-01-10 23:43:37,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:43:37,568 INFO L470 AbstractCegarLoop]: Abstraction has 12352 states and 23013 transitions. [2022-01-10 23:43:37,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:37,569 INFO L276 IsEmpty]: Start isEmpty. Operand 12352 states and 23013 transitions. [2022-01-10 23:43:37,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-01-10 23:43:37,569 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:43:37,570 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] [2022-01-10 23:43:37,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 23:43:37,570 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)] === [2022-01-10 23:43:37,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:43:37,570 INFO L85 PathProgramCache]: Analyzing trace with hash -990202791, now seen corresponding path program 1 times [2022-01-10 23:43:37,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:43:37,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036635327] [2022-01-10 23:43:37,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:43:37,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:43:37,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:43:37,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:43:37,628 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:43:37,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036635327] [2022-01-10 23:43:37,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036635327] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:43:37,628 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:43:37,628 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:43:37,628 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118022911] [2022-01-10 23:43:37,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:43:37,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:43:37,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:43:37,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:43:37,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:43:37,629 INFO L87 Difference]: Start difference. First operand 12352 states and 23013 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:38,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:43:38,435 INFO L93 Difference]: Finished difference Result 34558 states and 64409 transitions. [2022-01-10 23:43:38,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 23:43:38,436 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2022-01-10 23:43:38,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:43:38,474 INFO L225 Difference]: With dead ends: 34558 [2022-01-10 23:43:38,475 INFO L226 Difference]: Without dead ends: 22234 [2022-01-10 23:43:38,484 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-10 23:43:38,485 INFO L933 BasicCegarLoop]: 22975 mSDtfsCounter, 87363 mSDsluCounter, 27657 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87363 SdHoareTripleChecker+Valid, 50632 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:43:38,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87363 Valid, 50632 Invalid, 56 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:43:38,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22234 states. [2022-01-10 23:43:38,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22234 to 12354. [2022-01-10 23:43:38,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12354 states, 12349 states have (on average 1.8636326828083245) internal successors, (23014), 12353 states have internal predecessors, (23014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:38,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12354 states to 12354 states and 23014 transitions. [2022-01-10 23:43:38,844 INFO L78 Accepts]: Start accepts. Automaton has 12354 states and 23014 transitions. Word has length 41 [2022-01-10 23:43:38,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:43:38,844 INFO L470 AbstractCegarLoop]: Abstraction has 12354 states and 23014 transitions. [2022-01-10 23:43:38,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:38,844 INFO L276 IsEmpty]: Start isEmpty. Operand 12354 states and 23014 transitions. [2022-01-10 23:43:38,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-01-10 23:43:38,845 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:43:38,845 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:43:38,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 23:43:38,845 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:43:38,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:43:38,846 INFO L85 PathProgramCache]: Analyzing trace with hash -175569148, now seen corresponding path program 1 times [2022-01-10 23:43:38,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:43:38,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768626914] [2022-01-10 23:43:38,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:43:38,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:43:38,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:43:38,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:43:38,913 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:43:38,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768626914] [2022-01-10 23:43:38,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768626914] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:43:38,913 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:43:38,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:43:38,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314927223] [2022-01-10 23:43:38,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:43:38,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 23:43:38,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:43:38,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 23:43:38,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 23:43:38,915 INFO L87 Difference]: Start difference. First operand 12354 states and 23014 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:42,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:43:42,119 INFO L93 Difference]: Finished difference Result 35177 states and 65550 transitions. [2022-01-10 23:43:42,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 23:43:42,119 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2022-01-10 23:43:42,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:43:42,157 INFO L225 Difference]: With dead ends: 35177 [2022-01-10 23:43:42,158 INFO L226 Difference]: Without dead ends: 22867 [2022-01-10 23:43:42,168 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:43:42,168 INFO L933 BasicCegarLoop]: 23013 mSDtfsCounter, 61930 mSDsluCounter, 19431 mSDsCounter, 0 mSdLazyCounter, 2383 mSolverCounterSat, 664 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61930 SdHoareTripleChecker+Valid, 42444 SdHoareTripleChecker+Invalid, 3047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 664 IncrementalHoareTripleChecker+Valid, 2383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-10 23:43:42,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61930 Valid, 42444 Invalid, 3047 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [664 Valid, 2383 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-01-10 23:43:42,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22867 states. [2022-01-10 23:43:42,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22867 to 12354. [2022-01-10 23:43:42,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12354 states, 12349 states have (on average 1.8390153048829865) internal successors, (22710), 12353 states have internal predecessors, (22710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:42,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12354 states to 12354 states and 22710 transitions. [2022-01-10 23:43:42,543 INFO L78 Accepts]: Start accepts. Automaton has 12354 states and 22710 transitions. Word has length 42 [2022-01-10 23:43:42,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:43:42,543 INFO L470 AbstractCegarLoop]: Abstraction has 12354 states and 22710 transitions. [2022-01-10 23:43:42,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:42,543 INFO L276 IsEmpty]: Start isEmpty. Operand 12354 states and 22710 transitions. [2022-01-10 23:43:42,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-10 23:43:42,544 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:43:42,544 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] [2022-01-10 23:43:42,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 23:43:42,544 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:43:42,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:43:42,544 INFO L85 PathProgramCache]: Analyzing trace with hash -450151604, now seen corresponding path program 1 times [2022-01-10 23:43:42,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:43:42,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205488961] [2022-01-10 23:43:42,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:43:42,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:43:42,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:43:42,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:43:42,616 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:43:42,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205488961] [2022-01-10 23:43:42,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205488961] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:43:42,617 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:43:42,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:43:42,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626493406] [2022-01-10 23:43:42,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:43:42,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 23:43:42,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:43:42,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 23:43:42,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 23:43:42,618 INFO L87 Difference]: Start difference. First operand 12354 states and 22710 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:51,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:43:51,727 INFO L93 Difference]: Finished difference Result 145650 states and 270740 transitions. [2022-01-10 23:43:51,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-10 23:43:51,727 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 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 46 [2022-01-10 23:43:51,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:43:51,948 INFO L225 Difference]: With dead ends: 145650 [2022-01-10 23:43:51,948 INFO L226 Difference]: Without dead ends: 112329 [2022-01-10 23:43:51,981 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2022-01-10 23:43:51,981 INFO L933 BasicCegarLoop]: 22993 mSDtfsCounter, 328759 mSDsluCounter, 170957 mSDsCounter, 0 mSdLazyCounter, 3969 mSolverCounterSat, 1560 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328759 SdHoareTripleChecker+Valid, 193950 SdHoareTripleChecker+Invalid, 5529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 1560 IncrementalHoareTripleChecker+Valid, 3969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-01-10 23:43:51,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [328759 Valid, 193950 Invalid, 5529 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [1560 Valid, 3969 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-01-10 23:43:52,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112329 states. [2022-01-10 23:43:53,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112329 to 19734. [2022-01-10 23:43:53,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19734 states, 19729 states have (on average 1.8379542805007856) internal successors, (36261), 19733 states have internal predecessors, (36261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:53,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19734 states to 19734 states and 36261 transitions. [2022-01-10 23:43:53,449 INFO L78 Accepts]: Start accepts. Automaton has 19734 states and 36261 transitions. Word has length 46 [2022-01-10 23:43:53,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:43:53,449 INFO L470 AbstractCegarLoop]: Abstraction has 19734 states and 36261 transitions. [2022-01-10 23:43:53,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:53,449 INFO L276 IsEmpty]: Start isEmpty. Operand 19734 states and 36261 transitions. [2022-01-10 23:43:53,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-01-10 23:43:53,450 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:43:53,450 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] [2022-01-10 23:43:53,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 23:43:53,450 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:43:53,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:43:53,451 INFO L85 PathProgramCache]: Analyzing trace with hash 475457799, now seen corresponding path program 1 times [2022-01-10 23:43:53,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:43:53,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981435550] [2022-01-10 23:43:53,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:43:53,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:43:53,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:43:53,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:43:53,500 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:43:53,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981435550] [2022-01-10 23:43:53,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981435550] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:43:53,501 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:43:53,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:43:53,501 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243388969] [2022-01-10 23:43:53,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:43:53,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:43:53,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:43:53,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:43:53,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:43:53,502 INFO L87 Difference]: Start difference. First operand 19734 states and 36261 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:54,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:43:54,048 INFO L93 Difference]: Finished difference Result 32046 states and 58885 transitions. [2022-01-10 23:43:54,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 23:43:54,048 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2022-01-10 23:43:54,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:43:54,070 INFO L225 Difference]: With dead ends: 32046 [2022-01-10 23:43:54,070 INFO L226 Difference]: Without dead ends: 12314 [2022-01-10 23:43:54,086 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-10 23:43:54,087 INFO L933 BasicCegarLoop]: 22631 mSDtfsCounter, 40621 mSDsluCounter, 18179 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40621 SdHoareTripleChecker+Valid, 40810 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:43:54,087 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40621 Valid, 40810 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:43:54,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12314 states. [2022-01-10 23:43:54,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12314 to 12314. [2022-01-10 23:43:54,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12314 states, 12312 states have (on average 1.8364197530864197) internal successors, (22610), 12313 states have internal predecessors, (22610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:54,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12314 states to 12314 states and 22610 transitions. [2022-01-10 23:43:54,585 INFO L78 Accepts]: Start accepts. Automaton has 12314 states and 22610 transitions. Word has length 49 [2022-01-10 23:43:54,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:43:54,585 INFO L470 AbstractCegarLoop]: Abstraction has 12314 states and 22610 transitions. [2022-01-10 23:43:54,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:54,585 INFO L276 IsEmpty]: Start isEmpty. Operand 12314 states and 22610 transitions. [2022-01-10 23:43:54,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-10 23:43:54,600 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:43:54,600 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:43:54,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 23:43:54,600 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:43:54,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:43:54,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1722849905, now seen corresponding path program 1 times [2022-01-10 23:43:54,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:43:54,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520104178] [2022-01-10 23:43:54,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:43:54,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:43:54,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:43:54,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:43:54,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:43:54,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520104178] [2022-01-10 23:43:54,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520104178] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:43:54,667 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:43:54,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 23:43:54,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219637851] [2022-01-10 23:43:54,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:43:54,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 23:43:54,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:43:54,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 23:43:54,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-10 23:43:54,668 INFO L87 Difference]: Start difference. First operand 12314 states and 22610 transitions. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:55,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:43:55,270 INFO L93 Difference]: Finished difference Result 17264 states and 31673 transitions. [2022-01-10 23:43:55,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 23:43:55,270 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2022-01-10 23:43:55,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:43:55,289 INFO L225 Difference]: With dead ends: 17264 [2022-01-10 23:43:55,290 INFO L226 Difference]: Without dead ends: 12308 [2022-01-10 23:43:55,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-01-10 23:43:55,298 INFO L933 BasicCegarLoop]: 22598 mSDtfsCounter, 40547 mSDsluCounter, 31688 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40547 SdHoareTripleChecker+Valid, 54286 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:43:55,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40547 Valid, 54286 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:43:55,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12308 states. [2022-01-10 23:43:55,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12308 to 12308. [2022-01-10 23:43:55,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12308 states, 12306 states have (on average 1.8362587355761417) internal successors, (22597), 12307 states have internal predecessors, (22597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:55,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12308 states to 12308 states and 22597 transitions. [2022-01-10 23:43:55,786 INFO L78 Accepts]: Start accepts. Automaton has 12308 states and 22597 transitions. Word has length 104 [2022-01-10 23:43:55,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:43:55,787 INFO L470 AbstractCegarLoop]: Abstraction has 12308 states and 22597 transitions. [2022-01-10 23:43:55,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:55,787 INFO L276 IsEmpty]: Start isEmpty. Operand 12308 states and 22597 transitions. [2022-01-10 23:43:55,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-01-10 23:43:55,798 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:43:55,798 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:43:55,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 23:43:55,799 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:43:55,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:43:55,799 INFO L85 PathProgramCache]: Analyzing trace with hash -519580601, now seen corresponding path program 1 times [2022-01-10 23:43:55,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:43:55,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420141016] [2022-01-10 23:43:55,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:43:55,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:43:55,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:43:55,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:43:55,868 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:43:55,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420141016] [2022-01-10 23:43:55,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420141016] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:43:55,868 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:43:55,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 23:43:55,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530637866] [2022-01-10 23:43:55,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:43:55,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 23:43:55,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:43:55,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 23:43:55,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 23:43:55,870 INFO L87 Difference]: Start difference. First operand 12308 states and 22597 transitions. Second operand has 7 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:56,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:43:56,530 INFO L93 Difference]: Finished difference Result 17258 states and 31660 transitions. [2022-01-10 23:43:56,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 23:43:56,531 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2022-01-10 23:43:56,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:43:56,547 INFO L225 Difference]: With dead ends: 17258 [2022-01-10 23:43:56,548 INFO L226 Difference]: Without dead ends: 12302 [2022-01-10 23:43:56,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-01-10 23:43:56,553 INFO L933 BasicCegarLoop]: 22584 mSDtfsCounter, 27013 mSDsluCounter, 40737 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27013 SdHoareTripleChecker+Valid, 63321 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:43:56,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27013 Valid, 63321 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:43:56,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12302 states. [2022-01-10 23:43:56,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12302 to 12302. [2022-01-10 23:43:56,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12302 states, 12300 states have (on average 1.8360975609756098) internal successors, (22584), 12301 states have internal predecessors, (22584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:57,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12302 states to 12302 states and 22584 transitions. [2022-01-10 23:43:57,012 INFO L78 Accepts]: Start accepts. Automaton has 12302 states and 22584 transitions. Word has length 105 [2022-01-10 23:43:57,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:43:57,012 INFO L470 AbstractCegarLoop]: Abstraction has 12302 states and 22584 transitions. [2022-01-10 23:43:57,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:57,012 INFO L276 IsEmpty]: Start isEmpty. Operand 12302 states and 22584 transitions. [2022-01-10 23:43:57,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-01-10 23:43:57,022 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:43:57,022 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:43:57,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 23:43:57,023 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:43:57,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:43:57,023 INFO L85 PathProgramCache]: Analyzing trace with hash -590688539, now seen corresponding path program 1 times [2022-01-10 23:43:57,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:43:57,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035835027] [2022-01-10 23:43:57,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:43:57,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:43:57,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:43:57,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:43:57,095 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:43:57,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035835027] [2022-01-10 23:43:57,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035835027] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:43:57,095 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:43:57,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-10 23:43:57,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924900448] [2022-01-10 23:43:57,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:43:57,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 23:43:57,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:43:57,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 23:43:57,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-01-10 23:43:57,096 INFO L87 Difference]: Start difference. First operand 12302 states and 22584 transitions. Second operand has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:57,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:43:57,747 INFO L93 Difference]: Finished difference Result 17252 states and 31647 transitions. [2022-01-10 23:43:57,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 23:43:57,747 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2022-01-10 23:43:57,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:43:57,763 INFO L225 Difference]: With dead ends: 17252 [2022-01-10 23:43:57,763 INFO L226 Difference]: Without dead ends: 12302 [2022-01-10 23:43:57,768 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-01-10 23:43:57,769 INFO L933 BasicCegarLoop]: 22564 mSDtfsCounter, 54216 mSDsluCounter, 58612 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54216 SdHoareTripleChecker+Valid, 81176 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:43:57,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54216 Valid, 81176 Invalid, 50 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:43:57,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12302 states. [2022-01-10 23:43:58,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12302 to 12302. [2022-01-10 23:43:58,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12302 states, 12300 states have (on average 1.8360162601626016) internal successors, (22583), 12301 states have internal predecessors, (22583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:58,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12302 states to 12302 states and 22583 transitions. [2022-01-10 23:43:58,236 INFO L78 Accepts]: Start accepts. Automaton has 12302 states and 22583 transitions. Word has length 105 [2022-01-10 23:43:58,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:43:58,236 INFO L470 AbstractCegarLoop]: Abstraction has 12302 states and 22583 transitions. [2022-01-10 23:43:58,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:58,236 INFO L276 IsEmpty]: Start isEmpty. Operand 12302 states and 22583 transitions. [2022-01-10 23:43:58,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-10 23:43:58,246 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:43:58,246 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:43:58,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 23:43:58,246 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:43:58,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:43:58,247 INFO L85 PathProgramCache]: Analyzing trace with hash 182530805, now seen corresponding path program 1 times [2022-01-10 23:43:58,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:43:58,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027865187] [2022-01-10 23:43:58,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:43:58,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:43:58,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:43:58,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:43:58,397 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:43:58,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027865187] [2022-01-10 23:43:58,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027865187] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:43:58,398 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:43:58,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 23:43:58,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721752739] [2022-01-10 23:43:58,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:43:58,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:43:58,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:43:58,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:43:58,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:43:58,399 INFO L87 Difference]: Start difference. First operand 12302 states and 22583 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:59,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:43:59,722 INFO L93 Difference]: Finished difference Result 33040 states and 60849 transitions. [2022-01-10 23:43:59,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:43:59,723 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-10 23:43:59,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:43:59,757 INFO L225 Difference]: With dead ends: 33040 [2022-01-10 23:43:59,757 INFO L226 Difference]: Without dead ends: 23191 [2022-01-10 23:43:59,768 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:43:59,769 INFO L933 BasicCegarLoop]: 31110 mSDtfsCounter, 21342 mSDsluCounter, 21137 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21342 SdHoareTripleChecker+Valid, 52247 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 23:43:59,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21342 Valid, 52247 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 23:43:59,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23191 states. [2022-01-10 23:44:00,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23191 to 18175. [2022-01-10 23:44:00,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18175 states, 18173 states have (on average 1.8324437352115777) internal successors, (33301), 18174 states have internal predecessors, (33301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:00,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18175 states to 18175 states and 33301 transitions. [2022-01-10 23:44:00,537 INFO L78 Accepts]: Start accepts. Automaton has 18175 states and 33301 transitions. Word has length 106 [2022-01-10 23:44:00,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:00,538 INFO L470 AbstractCegarLoop]: Abstraction has 18175 states and 33301 transitions. [2022-01-10 23:44:00,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:00,538 INFO L276 IsEmpty]: Start isEmpty. Operand 18175 states and 33301 transitions. [2022-01-10 23:44:00,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-01-10 23:44:00,551 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:00,551 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:44:00,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 23:44:00,552 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:44:00,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:00,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1634432295, now seen corresponding path program 1 times [2022-01-10 23:44:00,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:00,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93295504] [2022-01-10 23:44:00,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:00,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:00,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:00,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:44:00,618 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:00,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93295504] [2022-01-10 23:44:00,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93295504] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:00,618 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:00,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 23:44:00,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175442383] [2022-01-10 23:44:00,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:00,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:44:00,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:00,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:44:00,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:44:00,619 INFO L87 Difference]: Start difference. First operand 18175 states and 33301 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 2 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:02,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:02,050 INFO L93 Difference]: Finished difference Result 46380 states and 85132 transitions. [2022-01-10 23:44:02,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:44:02,051 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 2 states have internal predecessors, (172), 0 states have call successors, (0), 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 172 [2022-01-10 23:44:02,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:02,098 INFO L225 Difference]: With dead ends: 46380 [2022-01-10 23:44:02,099 INFO L226 Difference]: Without dead ends: 28914 [2022-01-10 23:44:02,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:44:02,117 INFO L933 BasicCegarLoop]: 23292 mSDtfsCounter, 22024 mSDsluCounter, 20023 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22024 SdHoareTripleChecker+Valid, 43315 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:02,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22024 Valid, 43315 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 23:44:02,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28914 states. [2022-01-10 23:44:03,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28914 to 28910. [2022-01-10 23:44:03,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28910 states, 28908 states have (on average 1.8328490383284903) internal successors, (52984), 28909 states have internal predecessors, (52984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:03,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28910 states to 28910 states and 52984 transitions. [2022-01-10 23:44:03,433 INFO L78 Accepts]: Start accepts. Automaton has 28910 states and 52984 transitions. Word has length 172 [2022-01-10 23:44:03,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:03,433 INFO L470 AbstractCegarLoop]: Abstraction has 28910 states and 52984 transitions. [2022-01-10 23:44:03,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 2 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:03,433 INFO L276 IsEmpty]: Start isEmpty. Operand 28910 states and 52984 transitions. [2022-01-10 23:44:03,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-01-10 23:44:03,456 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:03,456 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:44:03,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 23:44:03,456 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:44:03,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:03,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1382962995, now seen corresponding path program 1 times [2022-01-10 23:44:03,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:03,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952023252] [2022-01-10 23:44:03,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:03,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:03,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:03,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:44:03,519 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:03,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952023252] [2022-01-10 23:44:03,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952023252] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:03,519 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:03,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 23:44:03,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307553971] [2022-01-10 23:44:03,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:03,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:44:03,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:03,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:44:03,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:44:03,520 INFO L87 Difference]: Start difference. First operand 28910 states and 52984 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 2 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:05,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:05,637 INFO L93 Difference]: Finished difference Result 78397 states and 143837 transitions. [2022-01-10 23:44:05,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:44:05,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 2 states have internal predecessors, (173), 0 states have call successors, (0), 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 173 [2022-01-10 23:44:05,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:05,718 INFO L225 Difference]: With dead ends: 78397 [2022-01-10 23:44:05,718 INFO L226 Difference]: Without dead ends: 50198 [2022-01-10 23:44:05,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:44:05,738 INFO L933 BasicCegarLoop]: 22490 mSDtfsCounter, 21901 mSDsluCounter, 20023 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21901 SdHoareTripleChecker+Valid, 42513 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:05,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21901 Valid, 42513 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 23:44:05,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50198 states. [2022-01-10 23:44:07,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50198 to 50194. [2022-01-10 23:44:07,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50194 states, 50192 states have (on average 1.8320449474019764) internal successors, (91954), 50193 states have internal predecessors, (91954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:07,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50194 states to 50194 states and 91954 transitions. [2022-01-10 23:44:07,699 INFO L78 Accepts]: Start accepts. Automaton has 50194 states and 91954 transitions. Word has length 173 [2022-01-10 23:44:07,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:07,699 INFO L470 AbstractCegarLoop]: Abstraction has 50194 states and 91954 transitions. [2022-01-10 23:44:07,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 2 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:07,699 INFO L276 IsEmpty]: Start isEmpty. Operand 50194 states and 91954 transitions. [2022-01-10 23:44:07,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-01-10 23:44:07,733 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:07,733 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:44:07,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 23:44:07,733 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:44:07,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:07,734 INFO L85 PathProgramCache]: Analyzing trace with hash 451570172, now seen corresponding path program 1 times [2022-01-10 23:44:07,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:07,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641314962] [2022-01-10 23:44:07,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:07,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:07,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:07,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:44:07,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:07,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641314962] [2022-01-10 23:44:07,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641314962] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:07,773 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:07,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 23:44:07,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535648806] [2022-01-10 23:44:07,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:07,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:44:07,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:07,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:44:07,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:44:07,774 INFO L87 Difference]: Start difference. First operand 50194 states and 91954 transitions. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 2 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)