/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/email_spec6_product26.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 23:57:58,408 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 23:57:58,409 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 23:57:58,427 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 23:57:58,428 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 23:57:58,428 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 23:57:58,429 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 23:57:58,431 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 23:57:58,432 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 23:57:58,433 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 23:57:58,433 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 23:57:58,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 23:57:58,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 23:57:58,435 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 23:57:58,436 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 23:57:58,436 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 23:57:58,437 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 23:57:58,437 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 23:57:58,438 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 23:57:58,440 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 23:57:58,440 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 23:57:58,442 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 23:57:58,442 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 23:57:58,444 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 23:57:58,446 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 23:57:58,446 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 23:57:58,446 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 23:57:58,446 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 23:57:58,447 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 23:57:58,447 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 23:57:58,448 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 23:57:58,448 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 23:57:58,449 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 23:57:58,449 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 23:57:58,450 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 23:57:58,450 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 23:57:58,450 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 23:57:58,451 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 23:57:58,451 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 23:57:58,451 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 23:57:58,452 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 23:57:58,453 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 23:57:58,467 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 23:57:58,468 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 23:57:58,468 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 23:57:58,468 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 23:57:58,469 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 23:57:58,469 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 23:57:58,469 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 23:57:58,469 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 23:57:58,469 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 23:57:58,470 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 23:57:58,470 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 23:57:58,470 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 23:57:58,470 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 23:57:58,470 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 23:57:58,470 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 23:57:58,470 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 23:57:58,470 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 23:57:58,471 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 23:57:58,471 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 23:57:58,471 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 23:57:58,471 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 23:57:58,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:57:58,471 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 23:57:58,472 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 23:57:58,472 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 23:57:58,472 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 23:57:58,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 23:57:58,472 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 23:57:58,504 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 23:57:58,505 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 23:57:58,505 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 23:57:58,505 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 23:57:58,506 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 23:57:58,506 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 23:57:58,714 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 23:57:58,730 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 23:57:58,732 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 23:57:58,733 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 23:57:58,733 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 23:57:58,734 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product26.cil.c [2022-01-10 23:57:58,782 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cce10d69/d12deab3827b4f2eb4046eba9e82bec5/FLAG617ff668f [2022-01-10 23:57:59,131 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 23:57:59,131 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product26.cil.c [2022-01-10 23:57:59,166 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cce10d69/d12deab3827b4f2eb4046eba9e82bec5/FLAG617ff668f [2022-01-10 23:57:59,501 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cce10d69/d12deab3827b4f2eb4046eba9e82bec5 [2022-01-10 23:57:59,503 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 23:57:59,504 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 23:57:59,507 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 23:57:59,507 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 23:57:59,509 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 23:57:59,510 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:57:59" (1/1) ... [2022-01-10 23:57:59,510 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26d22c10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:57:59, skipping insertion in model container [2022-01-10 23:57:59,511 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:57:59" (1/1) ... [2022-01-10 23:57:59,519 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 23:57:59,574 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:57:59,893 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product26.cil.c[51398,51411] [2022-01-10 23:57:59,919 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:57:59,935 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 23:57:59,942 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:58:00,024 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product26.cil.c[51398,51411] [2022-01-10 23:58:00,050 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:58:00,064 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 23:58:00,134 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product26.cil.c[51398,51411] [2022-01-10 23:58:00,155 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:58:00,185 INFO L208 MainTranslator]: Completed translation [2022-01-10 23:58:00,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:58:00 WrapperNode [2022-01-10 23:58:00,186 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 23:58:00,187 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 23:58:00,187 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 23:58:00,187 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 23:58:00,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:58:00" (1/1) ... [2022-01-10 23:58:00,229 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:58:00" (1/1) ... [2022-01-10 23:58:00,351 INFO L137 Inliner]: procedures = 134, calls = 232, calls flagged for inlining = 136, calls inlined = 374, statements flattened = 5585 [2022-01-10 23:58:00,351 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 23:58:00,352 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 23:58:00,352 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 23:58:00,352 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 23:58:00,358 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:58:00" (1/1) ... [2022-01-10 23:58:00,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:58:00" (1/1) ... [2022-01-10 23:58:00,378 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:58:00" (1/1) ... [2022-01-10 23:58:00,378 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:58:00" (1/1) ... [2022-01-10 23:58:00,408 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:58:00" (1/1) ... [2022-01-10 23:58:00,426 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:58:00" (1/1) ... [2022-01-10 23:58:00,434 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:58:00" (1/1) ... [2022-01-10 23:58:00,454 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 23:58:00,455 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 23:58:00,455 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 23:58:00,455 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 23:58:00,456 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:58:00" (1/1) ... [2022-01-10 23:58:00,461 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:58:00,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 23:58:00,496 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 23:58:00,511 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 23:58:00,528 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-01-10 23:58:00,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 23:58:00,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 23:58:00,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 23:58:00,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 23:58:00,720 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 23:58:00,721 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 23:58:02,540 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 23:58:02,551 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 23:58:02,551 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 23:58:02,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:58:02 BoogieIcfgContainer [2022-01-10 23:58:02,553 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 23:58:02,553 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 23:58:02,554 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 23:58:02,554 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 23:58:02,557 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:58:02" (1/1) ... [2022-01-10 23:58:02,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:58:02 BasicIcfg [2022-01-10 23:58:02,921 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 23:58:02,922 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 23:58:02,922 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 23:58:02,924 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 23:58:02,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 11:57:59" (1/4) ... [2022-01-10 23:58:02,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c64f959 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:58:02, skipping insertion in model container [2022-01-10 23:58:02,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:58:00" (2/4) ... [2022-01-10 23:58:02,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c64f959 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:58:02, skipping insertion in model container [2022-01-10 23:58:02,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:58:02" (3/4) ... [2022-01-10 23:58:02,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c64f959 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 11:58:02, skipping insertion in model container [2022-01-10 23:58:02,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:58:02" (4/4) ... [2022-01-10 23:58:02,926 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec6_product26.cil.cTransformedIcfg [2022-01-10 23:58:02,931 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 23:58:02,932 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-01-10 23:58:02,977 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 23:58:02,981 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 23:58:02,981 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-10 23:58:03,010 INFO L276 IsEmpty]: Start isEmpty. Operand has 1179 states, 1172 states have (on average 1.6672354948805461) internal successors, (1954), 1178 states have internal predecessors, (1954), 0 states have call successors, (0), 0 states 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 23:58:03,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-10 23:58:03,029 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:58:03,030 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, 1, 1, 1, 1, 1, 1, 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 23:58:03,030 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:58:03,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:58:03,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1395722306, now seen corresponding path program 1 times [2022-01-10 23:58:03,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:58:03,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796510633] [2022-01-10 23:58:03,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:58:03,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:58:03,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:58:03,389 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 23:58:03,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:58:03,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796510633] [2022-01-10 23:58:03,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796510633] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:58:03,390 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:58:03,390 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 23:58:03,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922503668] [2022-01-10 23:58:03,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:58:03,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 23:58:03,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:58:03,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 23:58:03,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 23:58:03,419 INFO L87 Difference]: Start difference. First operand has 1179 states, 1172 states have (on average 1.6672354948805461) internal successors, (1954), 1178 states have internal predecessors, (1954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:58:03,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:58:03,502 INFO L93 Difference]: Finished difference Result 2044 states and 3353 transitions. [2022-01-10 23:58:03,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 23:58:03,504 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-01-10 23:58:03,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:58:03,517 INFO L225 Difference]: With dead ends: 2044 [2022-01-10 23:58:03,518 INFO L226 Difference]: Without dead ends: 1010 [2022-01-10 23:58:03,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 23:58:03,528 INFO L933 BasicCegarLoop]: 1940 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1940 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:58:03,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1940 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:58:03,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1010 states. [2022-01-10 23:58:03,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1010 to 1010. [2022-01-10 23:58:03,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1010 states, 1004 states have (on average 1.6792828685258965) internal successors, (1686), 1009 states have internal predecessors, (1686), 0 states have call successors, (0), 0 states 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 23:58:03,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1010 states to 1010 states and 1686 transitions. [2022-01-10 23:58:03,608 INFO L78 Accepts]: Start accepts. Automaton has 1010 states and 1686 transitions. Word has length 60 [2022-01-10 23:58:03,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:58:03,608 INFO L470 AbstractCegarLoop]: Abstraction has 1010 states and 1686 transitions. [2022-01-10 23:58:03,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:58:03,610 INFO L276 IsEmpty]: Start isEmpty. Operand 1010 states and 1686 transitions. [2022-01-10 23:58:03,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-10 23:58:03,613 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:58:03,613 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:58:03,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 23:58:03,613 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:58:03,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:58:03,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1940903324, now seen corresponding path program 1 times [2022-01-10 23:58:03,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:58:03,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032911378] [2022-01-10 23:58:03,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:58:03,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:58:03,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:58:03,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:58:03,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:58:03,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032911378] [2022-01-10 23:58:03,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032911378] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:58:03,827 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:58:03,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:58:03,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251829322] [2022-01-10 23:58:03,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:58:03,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:58:03,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:58:03,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:58:03,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:58:03,829 INFO L87 Difference]: Start difference. First operand 1010 states and 1686 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:58:03,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:58:03,943 INFO L93 Difference]: Finished difference Result 2001 states and 3344 transitions. [2022-01-10 23:58:03,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:58:03,944 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-01-10 23:58:03,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:58:03,950 INFO L225 Difference]: With dead ends: 2001 [2022-01-10 23:58:03,950 INFO L226 Difference]: Without dead ends: 1010 [2022-01-10 23:58:03,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:58:03,954 INFO L933 BasicCegarLoop]: 1664 mSDtfsCounter, 1661 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1661 SdHoareTripleChecker+Valid, 1677 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:58:03,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1661 Valid, 1677 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:58:03,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1010 states. [2022-01-10 23:58:03,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1010 to 1010. [2022-01-10 23:58:03,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1010 states, 1004 states have (on average 1.6772908366533865) internal successors, (1684), 1009 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states 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 23:58:03,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1010 states to 1010 states and 1684 transitions. [2022-01-10 23:58:03,994 INFO L78 Accepts]: Start accepts. Automaton has 1010 states and 1684 transitions. Word has length 61 [2022-01-10 23:58:03,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:58:03,994 INFO L470 AbstractCegarLoop]: Abstraction has 1010 states and 1684 transitions. [2022-01-10 23:58:03,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:58:03,994 INFO L276 IsEmpty]: Start isEmpty. Operand 1010 states and 1684 transitions. [2022-01-10 23:58:03,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-10 23:58:03,996 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:58:03,996 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:58:03,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 23:58:03,996 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:58:03,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:58:03,997 INFO L85 PathProgramCache]: Analyzing trace with hash -200202340, now seen corresponding path program 1 times [2022-01-10 23:58:03,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:58:03,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039682580] [2022-01-10 23:58:03,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:58:03,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:58:04,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:58:04,138 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 23:58:04,139 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:58:04,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039682580] [2022-01-10 23:58:04,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039682580] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:58:04,139 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:58:04,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:58:04,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453504212] [2022-01-10 23:58:04,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:58:04,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:58:04,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:58:04,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:58:04,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:58:04,140 INFO L87 Difference]: Start difference. First operand 1010 states and 1684 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:58:04,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:58:04,418 INFO L93 Difference]: Finished difference Result 4918 states and 8216 transitions. [2022-01-10 23:58:04,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 23:58:04,419 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-01-10 23:58:04,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:58:04,434 INFO L225 Difference]: With dead ends: 4918 [2022-01-10 23:58:04,435 INFO L226 Difference]: Without dead ends: 3932 [2022-01-10 23:58:04,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 23:58:04,443 INFO L933 BasicCegarLoop]: 3291 mSDtfsCounter, 8203 mSDsluCounter, 4924 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8203 SdHoareTripleChecker+Valid, 8215 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:58:04,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8203 Valid, 8215 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:58:04,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3932 states. [2022-01-10 23:58:04,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3932 to 1010. [2022-01-10 23:58:04,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1010 states, 1004 states have (on average 1.6762948207171315) internal successors, (1683), 1009 states have internal predecessors, (1683), 0 states have call successors, (0), 0 states 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 23:58:04,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1010 states to 1010 states and 1683 transitions. [2022-01-10 23:58:04,501 INFO L78 Accepts]: Start accepts. Automaton has 1010 states and 1683 transitions. Word has length 63 [2022-01-10 23:58:04,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:58:04,501 INFO L470 AbstractCegarLoop]: Abstraction has 1010 states and 1683 transitions. [2022-01-10 23:58:04,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:58:04,501 INFO L276 IsEmpty]: Start isEmpty. Operand 1010 states and 1683 transitions. [2022-01-10 23:58:04,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-10 23:58:04,503 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:58:04,503 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:58:04,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 23:58:04,503 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:58:04,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:58:04,503 INFO L85 PathProgramCache]: Analyzing trace with hash -48430936, now seen corresponding path program 1 times [2022-01-10 23:58:04,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:58:04,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067724072] [2022-01-10 23:58:04,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:58:04,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:58:04,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:58:04,604 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 23:58:04,605 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:58:04,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067724072] [2022-01-10 23:58:04,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067724072] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:58:04,605 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:58:04,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:58:04,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507207526] [2022-01-10 23:58:04,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:58:04,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:58:04,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:58:04,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:58:04,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:58:04,608 INFO L87 Difference]: Start difference. First operand 1010 states and 1683 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:58:04,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:58:04,687 INFO L93 Difference]: Finished difference Result 2005 states and 3344 transitions. [2022-01-10 23:58:04,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:58:04,688 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-01-10 23:58:04,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:58:04,692 INFO L225 Difference]: With dead ends: 2005 [2022-01-10 23:58:04,692 INFO L226 Difference]: Without dead ends: 1024 [2022-01-10 23:58:04,693 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 23:58:04,701 INFO L933 BasicCegarLoop]: 1697 mSDtfsCounter, 1662 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1662 SdHoareTripleChecker+Valid, 1719 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:58:04,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1662 Valid, 1719 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:58:04,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2022-01-10 23:58:04,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 1010. [2022-01-10 23:58:04,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1010 states, 1004 states have (on average 1.6752988047808766) internal successors, (1682), 1009 states have internal predecessors, (1682), 0 states have call successors, (0), 0 states 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 23:58:04,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1010 states to 1010 states and 1682 transitions. [2022-01-10 23:58:04,744 INFO L78 Accepts]: Start accepts. Automaton has 1010 states and 1682 transitions. Word has length 64 [2022-01-10 23:58:04,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:58:04,744 INFO L470 AbstractCegarLoop]: Abstraction has 1010 states and 1682 transitions. [2022-01-10 23:58:04,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:58:04,744 INFO L276 IsEmpty]: Start isEmpty. Operand 1010 states and 1682 transitions. [2022-01-10 23:58:04,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-10 23:58:04,746 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:58:04,746 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:58:04,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 23:58:04,746 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:58:04,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:58:04,747 INFO L85 PathProgramCache]: Analyzing trace with hash -172311491, now seen corresponding path program 1 times [2022-01-10 23:58:04,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:58:04,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613783493] [2022-01-10 23:58:04,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:58:04,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:58:04,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:58:04,849 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 23:58:04,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:58:04,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613783493] [2022-01-10 23:58:04,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613783493] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:58:04,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:58:04,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:58:04,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533633015] [2022-01-10 23:58:04,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:58:04,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:58:04,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:58:04,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:58:04,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:58:04,851 INFO L87 Difference]: Start difference. First operand 1010 states and 1682 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:58:05,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:58:05,015 INFO L93 Difference]: Finished difference Result 2964 states and 4946 transitions. [2022-01-10 23:58:05,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 23:58:05,016 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-01-10 23:58:05,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:58:05,023 INFO L225 Difference]: With dead ends: 2964 [2022-01-10 23:58:05,023 INFO L226 Difference]: Without dead ends: 1988 [2022-01-10 23:58:05,027 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 23:58:05,027 INFO L933 BasicCegarLoop]: 1691 mSDtfsCounter, 8126 mSDsluCounter, 1705 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8126 SdHoareTripleChecker+Valid, 3396 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:58:05,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8126 Valid, 3396 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:58:05,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1988 states. [2022-01-10 23:58:05,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1988 to 1010. [2022-01-10 23:58:05,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1010 states, 1004 states have (on average 1.6733067729083666) internal successors, (1680), 1009 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states 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 23:58:05,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1010 states to 1010 states and 1680 transitions. [2022-01-10 23:58:05,102 INFO L78 Accepts]: Start accepts. Automaton has 1010 states and 1680 transitions. Word has length 65 [2022-01-10 23:58:05,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:58:05,107 INFO L470 AbstractCegarLoop]: Abstraction has 1010 states and 1680 transitions. [2022-01-10 23:58:05,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:58:05,107 INFO L276 IsEmpty]: Start isEmpty. Operand 1010 states and 1680 transitions. [2022-01-10 23:58:05,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-10 23:58:05,108 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:58:05,108 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:58:05,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 23:58:05,109 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:58:05,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:58:05,110 INFO L85 PathProgramCache]: Analyzing trace with hash 558539674, now seen corresponding path program 1 times [2022-01-10 23:58:05,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:58:05,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150399341] [2022-01-10 23:58:05,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:58:05,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:58:05,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:58:05,247 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 23:58:05,247 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:58:05,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150399341] [2022-01-10 23:58:05,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150399341] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:58:05,247 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:58:05,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 23:58:05,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984436624] [2022-01-10 23:58:05,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:58:05,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 23:58:05,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:58:05,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 23:58:05,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-01-10 23:58:05,249 INFO L87 Difference]: Start difference. First operand 1010 states and 1680 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:58:06,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:58:06,533 INFO L93 Difference]: Finished difference Result 5812 states and 9385 transitions. [2022-01-10 23:58:06,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-10 23:58:06,534 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-01-10 23:58:06,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:58:06,550 INFO L225 Difference]: With dead ends: 5812 [2022-01-10 23:58:06,550 INFO L226 Difference]: Without dead ends: 5167 [2022-01-10 23:58:06,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=153, Invalid=309, Unknown=0, NotChecked=0, Total=462 [2022-01-10 23:58:06,554 INFO L933 BasicCegarLoop]: 2905 mSDtfsCounter, 15412 mSDsluCounter, 13958 mSDsCounter, 0 mSdLazyCounter, 892 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15412 SdHoareTripleChecker+Valid, 16863 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 23:58:06,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15412 Valid, 16863 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 892 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-10 23:58:06,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5167 states. [2022-01-10 23:58:06,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5167 to 1896. [2022-01-10 23:58:06,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1896 states, 1890 states have (on average 1.6788359788359788) internal successors, (3173), 1895 states have internal predecessors, (3173), 0 states have call successors, (0), 0 states 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 23:58:06,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1896 states to 1896 states and 3173 transitions. [2022-01-10 23:58:06,694 INFO L78 Accepts]: Start accepts. Automaton has 1896 states and 3173 transitions. Word has length 67 [2022-01-10 23:58:06,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:58:06,694 INFO L470 AbstractCegarLoop]: Abstraction has 1896 states and 3173 transitions. [2022-01-10 23:58:06,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:58:06,695 INFO L276 IsEmpty]: Start isEmpty. Operand 1896 states and 3173 transitions. [2022-01-10 23:58:06,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-01-10 23:58:06,697 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:58:06,697 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:58:06,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 23:58:06,697 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:58:06,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:58:06,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1852967128, now seen corresponding path program 1 times [2022-01-10 23:58:06,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:58:06,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146968690] [2022-01-10 23:58:06,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:58:06,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:58:06,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:58:06,822 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 23:58:06,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:58:06,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146968690] [2022-01-10 23:58:06,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146968690] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:58:06,822 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:58:06,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 23:58:06,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599636914] [2022-01-10 23:58:06,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:58:06,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 23:58:06,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:58:06,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 23:58:06,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-01-10 23:58:06,824 INFO L87 Difference]: Start difference. First operand 1896 states and 3173 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:58:08,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:58:08,450 INFO L93 Difference]: Finished difference Result 9701 states and 15767 transitions. [2022-01-10 23:58:08,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-10 23:58:08,450 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-01-10 23:58:08,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:58:08,477 INFO L225 Difference]: With dead ends: 9701 [2022-01-10 23:58:08,477 INFO L226 Difference]: Without dead ends: 8503 [2022-01-10 23:58:08,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=153, Invalid=309, Unknown=0, NotChecked=0, Total=462 [2022-01-10 23:58:08,481 INFO L933 BasicCegarLoop]: 2769 mSDtfsCounter, 12945 mSDsluCounter, 14856 mSDsCounter, 0 mSdLazyCounter, 915 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12945 SdHoareTripleChecker+Valid, 17625 SdHoareTripleChecker+Invalid, 977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 23:58:08,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12945 Valid, 17625 Invalid, 977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 915 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-10 23:58:08,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8503 states. [2022-01-10 23:58:08,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8503 to 3678. [2022-01-10 23:58:08,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3678 states, 3672 states have (on average 1.681644880174292) internal successors, (6175), 3677 states have internal predecessors, (6175), 0 states have call successors, (0), 0 states 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 23:58:08,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3678 states to 3678 states and 6175 transitions. [2022-01-10 23:58:08,778 INFO L78 Accepts]: Start accepts. Automaton has 3678 states and 6175 transitions. Word has length 68 [2022-01-10 23:58:08,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:58:08,779 INFO L470 AbstractCegarLoop]: Abstraction has 3678 states and 6175 transitions. [2022-01-10 23:58:08,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:58:08,779 INFO L276 IsEmpty]: Start isEmpty. Operand 3678 states and 6175 transitions. [2022-01-10 23:58:08,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-01-10 23:58:08,785 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:58:08,785 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:58:08,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 23:58:08,785 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:58:08,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:58:08,785 INFO L85 PathProgramCache]: Analyzing trace with hash 403943879, now seen corresponding path program 1 times [2022-01-10 23:58:08,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:58:08,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281489363] [2022-01-10 23:58:08,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:58:08,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:58:08,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:58:08,869 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 23:58:08,869 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:58:08,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281489363] [2022-01-10 23:58:08,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281489363] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:58:08,870 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:58:08,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 23:58:08,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273193043] [2022-01-10 23:58:08,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:58:08,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:58:08,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:58:08,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:58:08,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:58:08,871 INFO L87 Difference]: Start difference. First operand 3678 states and 6175 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:58:10,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:58:10,629 INFO L93 Difference]: Finished difference Result 18546 states and 29891 transitions. [2022-01-10 23:58:10,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 23:58:10,630 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-01-10 23:58:10,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:58:10,684 INFO L225 Difference]: With dead ends: 18546 [2022-01-10 23:58:10,684 INFO L226 Difference]: Without dead ends: 16400 [2022-01-10 23:58:10,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 23:58:10,694 INFO L933 BasicCegarLoop]: 1670 mSDtfsCounter, 8419 mSDsluCounter, 6391 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8419 SdHoareTripleChecker+Valid, 8061 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 23:58:10,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8419 Valid, 8061 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 23:58:10,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16400 states. [2022-01-10 23:58:11,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16400 to 6076. [2022-01-10 23:58:11,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6076 states, 6070 states have (on average 1.6466227347611202) internal successors, (9995), 6075 states have internal predecessors, (9995), 0 states have call successors, (0), 0 states 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 23:58:11,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6076 states to 6076 states and 9995 transitions. [2022-01-10 23:58:11,207 INFO L78 Accepts]: Start accepts. Automaton has 6076 states and 9995 transitions. Word has length 68 [2022-01-10 23:58:11,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:58:11,208 INFO L470 AbstractCegarLoop]: Abstraction has 6076 states and 9995 transitions. [2022-01-10 23:58:11,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:58:11,208 INFO L276 IsEmpty]: Start isEmpty. Operand 6076 states and 9995 transitions. [2022-01-10 23:58:11,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-01-10 23:58:11,210 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:58:11,210 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:58:11,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 23:58:11,211 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:58:11,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:58:11,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1784472993, now seen corresponding path program 1 times [2022-01-10 23:58:11,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:58:11,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052399290] [2022-01-10 23:58:11,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:58:11,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:58:11,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:58:11,339 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 23:58:11,339 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:58:11,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052399290] [2022-01-10 23:58:11,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052399290] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:58:11,340 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:58:11,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 23:58:11,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585434032] [2022-01-10 23:58:11,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:58:11,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 23:58:11,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:58:11,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 23:58:11,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-10 23:58:11,341 INFO L87 Difference]: Start difference. First operand 6076 states and 9995 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:58:12,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:58:12,391 INFO L93 Difference]: Finished difference Result 13704 states and 22148 transitions. [2022-01-10 23:58:12,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-10 23:58:12,391 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-01-10 23:58:12,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:58:12,409 INFO L225 Difference]: With dead ends: 13704 [2022-01-10 23:58:12,409 INFO L226 Difference]: Without dead ends: 9324 [2022-01-10 23:58:12,416 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2022-01-10 23:58:12,417 INFO L933 BasicCegarLoop]: 1716 mSDtfsCounter, 7924 mSDsluCounter, 5682 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7924 SdHoareTripleChecker+Valid, 7398 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:58:12,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7924 Valid, 7398 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:58:12,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9324 states. [2022-01-10 23:58:12,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9324 to 5872. [2022-01-10 23:58:12,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5872 states, 5866 states have (on average 1.6425161950221616) internal successors, (9635), 5871 states have internal predecessors, (9635), 0 states have call successors, (0), 0 states 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 23:58:12,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5872 states to 5872 states and 9635 transitions. [2022-01-10 23:58:12,905 INFO L78 Accepts]: Start accepts. Automaton has 5872 states and 9635 transitions. Word has length 69 [2022-01-10 23:58:12,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:58:12,905 INFO L470 AbstractCegarLoop]: Abstraction has 5872 states and 9635 transitions. [2022-01-10 23:58:12,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:58:12,906 INFO L276 IsEmpty]: Start isEmpty. Operand 5872 states and 9635 transitions. [2022-01-10 23:58:12,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-01-10 23:58:12,908 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:58:12,908 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:58:12,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 23:58:12,911 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:58:12,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:58:12,911 INFO L85 PathProgramCache]: Analyzing trace with hash 743940943, now seen corresponding path program 1 times [2022-01-10 23:58:12,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:58:12,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388452732] [2022-01-10 23:58:12,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:58:12,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:58:12,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:58:12,990 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 23:58:12,990 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:58:12,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388452732] [2022-01-10 23:58:12,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388452732] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:58:12,991 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:58:12,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 23:58:12,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780699329] [2022-01-10 23:58:12,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:58:12,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 23:58:12,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:58:12,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 23:58:12,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 23:58:12,992 INFO L87 Difference]: Start difference. First operand 5872 states and 9635 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:58:14,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:58:14,222 INFO L93 Difference]: Finished difference Result 17544 states and 28093 transitions. [2022-01-10 23:58:14,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 23:58:14,222 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-01-10 23:58:14,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:58:14,244 INFO L225 Difference]: With dead ends: 17544 [2022-01-10 23:58:14,245 INFO L226 Difference]: Without dead ends: 13056 [2022-01-10 23:58:14,251 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 23:58:14,252 INFO L933 BasicCegarLoop]: 2308 mSDtfsCounter, 1859 mSDsluCounter, 3265 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1859 SdHoareTripleChecker+Valid, 5573 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:58:14,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1859 Valid, 5573 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:58:14,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13056 states. [2022-01-10 23:58:14,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13056 to 5928. [2022-01-10 23:58:14,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5928 states, 5922 states have (on average 1.6364403917595407) internal successors, (9691), 5927 states have internal predecessors, (9691), 0 states have call successors, (0), 0 states 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 23:58:14,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5928 states to 5928 states and 9691 transitions. [2022-01-10 23:58:14,786 INFO L78 Accepts]: Start accepts. Automaton has 5928 states and 9691 transitions. Word has length 72 [2022-01-10 23:58:14,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:58:14,786 INFO L470 AbstractCegarLoop]: Abstraction has 5928 states and 9691 transitions. [2022-01-10 23:58:14,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:58:14,786 INFO L276 IsEmpty]: Start isEmpty. Operand 5928 states and 9691 transitions. [2022-01-10 23:58:14,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-01-10 23:58:14,789 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:58:14,789 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:58:14,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 23:58:14,789 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:58:14,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:58:14,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1481838222, now seen corresponding path program 1 times [2022-01-10 23:58:14,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:58:14,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068356286] [2022-01-10 23:58:14,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:58:14,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:58:14,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:58:14,921 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 23:58:14,922 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:58:14,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068356286] [2022-01-10 23:58:14,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068356286] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:58:14,922 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:58:14,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 23:58:14,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787368995] [2022-01-10 23:58:14,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:58:14,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 23:58:14,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:58:14,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 23:58:14,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 23:58:14,923 INFO L87 Difference]: Start difference. First operand 5928 states and 9691 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:58:15,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:58:15,710 INFO L93 Difference]: Finished difference Result 11688 states and 18824 transitions. [2022-01-10 23:58:15,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 23:58:15,710 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-01-10 23:58:15,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:58:15,723 INFO L225 Difference]: With dead ends: 11688 [2022-01-10 23:58:15,723 INFO L226 Difference]: Without dead ends: 7096 [2022-01-10 23:58:15,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2022-01-10 23:58:15,729 INFO L933 BasicCegarLoop]: 1609 mSDtfsCounter, 5660 mSDsluCounter, 3404 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5660 SdHoareTripleChecker+Valid, 5013 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:58:15,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5660 Valid, 5013 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:58:15,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7096 states. [2022-01-10 23:58:16,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7096 to 5864. [2022-01-10 23:58:16,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5864 states, 5858 states have (on average 1.6270058040286788) internal successors, (9531), 5863 states have internal predecessors, (9531), 0 states have call successors, (0), 0 states 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 23:58:16,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5864 states to 5864 states and 9531 transitions. [2022-01-10 23:58:16,224 INFO L78 Accepts]: Start accepts. Automaton has 5864 states and 9531 transitions. Word has length 72 [2022-01-10 23:58:16,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:58:16,225 INFO L470 AbstractCegarLoop]: Abstraction has 5864 states and 9531 transitions. [2022-01-10 23:58:16,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:58:16,225 INFO L276 IsEmpty]: Start isEmpty. Operand 5864 states and 9531 transitions. [2022-01-10 23:58:16,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-01-10 23:58:16,228 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:58:16,228 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:58:16,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 23:58:16,228 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:58:16,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:58:16,228 INFO L85 PathProgramCache]: Analyzing trace with hash -709251948, now seen corresponding path program 1 times [2022-01-10 23:58:16,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:58:16,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26259374] [2022-01-10 23:58:16,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:58:16,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:58:16,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:58:16,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:58:16,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:58:16,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26259374] [2022-01-10 23:58:16,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26259374] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:58:16,293 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:58:16,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:58:16,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438082322] [2022-01-10 23:58:16,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:58:16,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:58:16,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:58:16,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:58:16,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:58:16,294 INFO L87 Difference]: Start difference. First operand 5864 states and 9531 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:58:18,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:58:18,657 INFO L93 Difference]: Finished difference Result 22860 states and 36321 transitions. [2022-01-10 23:58:18,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 23:58:18,658 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-01-10 23:58:18,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:58:18,685 INFO L225 Difference]: With dead ends: 22860 [2022-01-10 23:58:18,686 INFO L226 Difference]: Without dead ends: 18380 [2022-01-10 23:58:18,694 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 23:58:18,695 INFO L933 BasicCegarLoop]: 4180 mSDtfsCounter, 2502 mSDsluCounter, 8122 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2502 SdHoareTripleChecker+Valid, 12302 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 23:58:18,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2502 Valid, 12302 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 23:58:18,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18380 states. [2022-01-10 23:58:19,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18380 to 6132. [2022-01-10 23:58:19,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6132 states, 6126 states have (on average 1.6296114920013058) internal successors, (9983), 6131 states have internal predecessors, (9983), 0 states have call successors, (0), 0 states 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 23:58:19,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6132 states to 6132 states and 9983 transitions. [2022-01-10 23:58:19,343 INFO L78 Accepts]: Start accepts. Automaton has 6132 states and 9983 transitions. Word has length 72 [2022-01-10 23:58:19,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:58:19,344 INFO L470 AbstractCegarLoop]: Abstraction has 6132 states and 9983 transitions. [2022-01-10 23:58:19,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:58:19,344 INFO L276 IsEmpty]: Start isEmpty. Operand 6132 states and 9983 transitions. [2022-01-10 23:58:19,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-01-10 23:58:19,347 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:58:19,347 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:58:19,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 23:58:19,347 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:58:19,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:58:19,347 INFO L85 PathProgramCache]: Analyzing trace with hash -16150251, now seen corresponding path program 1 times [2022-01-10 23:58:19,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:58:19,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923874357] [2022-01-10 23:58:19,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:58:19,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:58:19,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:58:19,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:58:19,416 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:58:19,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923874357] [2022-01-10 23:58:19,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923874357] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:58:19,416 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:58:19,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 23:58:19,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493914028] [2022-01-10 23:58:19,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:58:19,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:58:19,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:58:19,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:58:19,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:58:19,417 INFO L87 Difference]: Start difference. First operand 6132 states and 9983 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:58:22,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:58:22,527 INFO L93 Difference]: Finished difference Result 31351 states and 50043 transitions. [2022-01-10 23:58:22,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 23:58:22,528 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-01-10 23:58:22,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:58:22,563 INFO L225 Difference]: With dead ends: 31351 [2022-01-10 23:58:22,563 INFO L226 Difference]: Without dead ends: 26635 [2022-01-10 23:58:22,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 23:58:22,573 INFO L933 BasicCegarLoop]: 1697 mSDtfsCounter, 7370 mSDsluCounter, 5747 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7370 SdHoareTripleChecker+Valid, 7444 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:58:22,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7370 Valid, 7444 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:58:22,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26635 states. [2022-01-10 23:58:23,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26635 to 12007. [2022-01-10 23:58:23,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12007 states, 12001 states have (on average 1.631114073827181) internal successors, (19575), 12006 states have internal predecessors, (19575), 0 states have call successors, (0), 0 states 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 23:58:23,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12007 states to 12007 states and 19575 transitions. [2022-01-10 23:58:23,799 INFO L78 Accepts]: Start accepts. Automaton has 12007 states and 19575 transitions. Word has length 72 [2022-01-10 23:58:23,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:58:23,799 INFO L470 AbstractCegarLoop]: Abstraction has 12007 states and 19575 transitions. [2022-01-10 23:58:23,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:58:23,799 INFO L276 IsEmpty]: Start isEmpty. Operand 12007 states and 19575 transitions. [2022-01-10 23:58:23,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-01-10 23:58:23,804 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:58:23,804 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] [2022-01-10 23:58:23,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 23:58:23,804 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:58:23,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:58:23,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1115430627, now seen corresponding path program 1 times [2022-01-10 23:58:23,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:58:23,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362556689] [2022-01-10 23:58:23,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:58:23,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:58:23,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:58:23,883 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 23:58:23,883 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:58:23,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362556689] [2022-01-10 23:58:23,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362556689] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:58:23,884 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:58:23,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 23:58:23,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773739333] [2022-01-10 23:58:23,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:58:23,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:58:23,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:58:23,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:58:23,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:58:23,885 INFO L87 Difference]: Start difference. First operand 12007 states and 19575 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states 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 23:58:28,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:58:28,483 INFO L93 Difference]: Finished difference Result 42419 states and 67413 transitions. [2022-01-10 23:58:28,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 23:58:28,483 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2022-01-10 23:58:28,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:58:28,538 INFO L225 Difference]: With dead ends: 42419 [2022-01-10 23:58:28,538 INFO L226 Difference]: Without dead ends: 35421 [2022-01-10 23:58:28,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 23:58:28,551 INFO L933 BasicCegarLoop]: 3320 mSDtfsCounter, 5560 mSDsluCounter, 6132 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5560 SdHoareTripleChecker+Valid, 9452 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 23:58:28,551 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5560 Valid, 9452 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 23:58:28,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35421 states. [2022-01-10 23:58:30,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35421 to 14385. [2022-01-10 23:58:30,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14385 states, 14379 states have (on average 1.622157312747757) internal successors, (23325), 14384 states have internal predecessors, (23325), 0 states have call successors, (0), 0 states 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 23:58:30,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14385 states to 14385 states and 23325 transitions. [2022-01-10 23:58:30,497 INFO L78 Accepts]: Start accepts. Automaton has 14385 states and 23325 transitions. Word has length 73 [2022-01-10 23:58:30,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:58:30,497 INFO L470 AbstractCegarLoop]: Abstraction has 14385 states and 23325 transitions. [2022-01-10 23:58:30,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states 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 23:58:30,497 INFO L276 IsEmpty]: Start isEmpty. Operand 14385 states and 23325 transitions. [2022-01-10 23:58:30,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-01-10 23:58:30,503 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:58:30,503 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] [2022-01-10 23:58:30,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 23:58:30,503 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:58:30,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:58:30,504 INFO L85 PathProgramCache]: Analyzing trace with hash -327693243, now seen corresponding path program 1 times [2022-01-10 23:58:30,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:58:30,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38431370] [2022-01-10 23:58:30,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:58:30,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:58:30,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:58:30,568 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 23:58:30,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:58:30,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38431370] [2022-01-10 23:58:30,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38431370] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:58:30,568 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:58:30,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 23:58:30,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318189134] [2022-01-10 23:58:30,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:58:30,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 23:58:30,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:58:30,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 23:58:30,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 23:58:30,570 INFO L87 Difference]: Start difference. First operand 14385 states and 23325 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states 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 23:58:32,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:58:32,858 INFO L93 Difference]: Finished difference Result 23991 states and 38530 transitions. [2022-01-10 23:58:32,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 23:58:32,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2022-01-10 23:58:32,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:58:32,881 INFO L225 Difference]: With dead ends: 23991 [2022-01-10 23:58:32,881 INFO L226 Difference]: Without dead ends: 19011 [2022-01-10 23:58:32,889 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 23:58:32,890 INFO L933 BasicCegarLoop]: 1639 mSDtfsCounter, 3017 mSDsluCounter, 1953 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3017 SdHoareTripleChecker+Valid, 3592 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:58:32,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3017 Valid, 3592 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:58:32,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19011 states. [2022-01-10 23:58:34,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19011 to 14385. [2022-01-10 23:58:34,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14385 states, 14379 states have (on average 1.621879129285764) internal successors, (23321), 14384 states have internal predecessors, (23321), 0 states have call successors, (0), 0 states 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 23:58:34,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14385 states to 14385 states and 23321 transitions. [2022-01-10 23:58:34,568 INFO L78 Accepts]: Start accepts. Automaton has 14385 states and 23321 transitions. Word has length 73 [2022-01-10 23:58:34,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:58:34,568 INFO L470 AbstractCegarLoop]: Abstraction has 14385 states and 23321 transitions. [2022-01-10 23:58:34,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states 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 23:58:34,568 INFO L276 IsEmpty]: Start isEmpty. Operand 14385 states and 23321 transitions. [2022-01-10 23:58:34,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-01-10 23:58:34,573 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:58:34,573 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] [2022-01-10 23:58:34,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 23:58:34,573 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:58:34,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:58:34,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1622607012, now seen corresponding path program 1 times [2022-01-10 23:58:34,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:58:34,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123440627] [2022-01-10 23:58:34,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:58:34,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:58:34,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:58:34,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:58:34,647 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:58:34,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123440627] [2022-01-10 23:58:34,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123440627] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:58:34,648 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:58:34,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 23:58:34,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572606250] [2022-01-10 23:58:34,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:58:34,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:58:34,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:58:34,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:58:34,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:58:34,649 INFO L87 Difference]: Start difference. First operand 14385 states and 23321 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states 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 23:58:39,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:58:39,938 INFO L93 Difference]: Finished difference Result 35791 states and 56876 transitions. [2022-01-10 23:58:39,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 23:58:39,938 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2022-01-10 23:58:39,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:58:39,998 INFO L225 Difference]: With dead ends: 35791 [2022-01-10 23:58:39,998 INFO L226 Difference]: Without dead ends: 33273 [2022-01-10 23:58:40,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 23:58:40,012 INFO L933 BasicCegarLoop]: 3200 mSDtfsCounter, 7048 mSDsluCounter, 8043 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7048 SdHoareTripleChecker+Valid, 11243 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 23:58:40,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7048 Valid, 11243 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 23:58:40,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33273 states. [2022-01-10 23:58:41,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33273 to 16341. [2022-01-10 23:58:41,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16341 states, 16335 states have (on average 1.6168350168350167) internal successors, (26411), 16340 states have internal predecessors, (26411), 0 states have call successors, (0), 0 states 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 23:58:42,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16341 states to 16341 states and 26411 transitions. [2022-01-10 23:58:42,002 INFO L78 Accepts]: Start accepts. Automaton has 16341 states and 26411 transitions. Word has length 73 [2022-01-10 23:58:42,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:58:42,003 INFO L470 AbstractCegarLoop]: Abstraction has 16341 states and 26411 transitions. [2022-01-10 23:58:42,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states 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 23:58:42,003 INFO L276 IsEmpty]: Start isEmpty. Operand 16341 states and 26411 transitions. [2022-01-10 23:58:42,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-01-10 23:58:42,008 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:58:42,008 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:58:42,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 23:58:42,009 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:58:42,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:58:42,009 INFO L85 PathProgramCache]: Analyzing trace with hash 575838722, now seen corresponding path program 1 times [2022-01-10 23:58:42,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:58:42,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154538961] [2022-01-10 23:58:42,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:58:42,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:58:42,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:58:42,069 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 23:58:42,070 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:58:42,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154538961] [2022-01-10 23:58:42,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154538961] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:58:42,070 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:58:42,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:58:42,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655928013] [2022-01-10 23:58:42,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:58:42,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:58:42,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:58:42,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:58:42,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:58:42,071 INFO L87 Difference]: Start difference. First operand 16341 states and 26411 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:58:49,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:58:49,157 INFO L93 Difference]: Finished difference Result 53969 states and 85540 transitions. [2022-01-10 23:58:49,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 23:58:49,158 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-01-10 23:58:49,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:58:49,230 INFO L225 Difference]: With dead ends: 53969 [2022-01-10 23:58:49,230 INFO L226 Difference]: Without dead ends: 47025 [2022-01-10 23:58:49,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 23:58:49,246 INFO L933 BasicCegarLoop]: 4116 mSDtfsCounter, 2375 mSDsluCounter, 8025 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2375 SdHoareTripleChecker+Valid, 12141 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 23:58:49,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2375 Valid, 12141 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 23:58:49,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47025 states. [2022-01-10 23:58:51,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47025 to 16327. [2022-01-10 23:58:51,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16327 states, 16321 states have (on average 1.612830096195086) internal successors, (26323), 16326 states have internal predecessors, (26323), 0 states have call successors, (0), 0 states 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 23:58:51,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16327 states to 16327 states and 26323 transitions. [2022-01-10 23:58:51,412 INFO L78 Accepts]: Start accepts. Automaton has 16327 states and 26323 transitions. Word has length 74 [2022-01-10 23:58:51,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:58:51,412 INFO L470 AbstractCegarLoop]: Abstraction has 16327 states and 26323 transitions. [2022-01-10 23:58:51,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:58:51,412 INFO L276 IsEmpty]: Start isEmpty. Operand 16327 states and 26323 transitions. [2022-01-10 23:58:51,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-01-10 23:58:51,417 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:58:51,417 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:58:51,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 23:58:51,418 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:58:51,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:58:51,418 INFO L85 PathProgramCache]: Analyzing trace with hash -474247206, now seen corresponding path program 1 times [2022-01-10 23:58:51,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:58:51,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666138337] [2022-01-10 23:58:51,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:58:51,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:58:51,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:58:51,480 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 23:58:51,480 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:58:51,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666138337] [2022-01-10 23:58:51,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666138337] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:58:51,481 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:58:51,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:58:51,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647157536] [2022-01-10 23:58:51,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:58:51,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:58:51,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:58:51,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:58:51,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:58:51,482 INFO L87 Difference]: Start difference. First operand 16327 states and 26323 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states 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 23:58:54,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:58:54,610 INFO L93 Difference]: Finished difference Result 31859 states and 50785 transitions. [2022-01-10 23:58:54,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:58:54,611 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2022-01-10 23:58:54,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:58:54,641 INFO L225 Difference]: With dead ends: 31859 [2022-01-10 23:58:54,641 INFO L226 Difference]: Without dead ends: 20421 [2022-01-10 23:58:54,654 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 23:58:54,654 INFO L933 BasicCegarLoop]: 1967 mSDtfsCounter, 852 mSDsluCounter, 1151 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 3118 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:58:54,654 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [852 Valid, 3118 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:58:54,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20421 states. [2022-01-10 23:58:56,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20421 to 16327. [2022-01-10 23:58:56,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16327 states, 16321 states have (on average 1.6065804791373077) internal successors, (26221), 16326 states have internal predecessors, (26221), 0 states have call successors, (0), 0 states 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 23:58:56,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16327 states to 16327 states and 26221 transitions. [2022-01-10 23:58:56,742 INFO L78 Accepts]: Start accepts. Automaton has 16327 states and 26221 transitions. Word has length 80 [2022-01-10 23:58:56,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:58:56,742 INFO L470 AbstractCegarLoop]: Abstraction has 16327 states and 26221 transitions. [2022-01-10 23:58:56,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states 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 23:58:56,743 INFO L276 IsEmpty]: Start isEmpty. Operand 16327 states and 26221 transitions. [2022-01-10 23:58:56,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-10 23:58:56,747 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:58:56,747 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:58:56,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 23:58:56,748 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:58:56,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:58:56,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1365821407, now seen corresponding path program 1 times [2022-01-10 23:58:56,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:58:56,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739364741] [2022-01-10 23:58:56,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:58:56,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:58:56,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:58:56,814 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 23:58:56,815 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:58:56,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739364741] [2022-01-10 23:58:56,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739364741] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:58:56,815 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:58:56,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 23:58:56,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810889916] [2022-01-10 23:58:56,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:58:56,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:58:56,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:58:56,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:58:56,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:58:56,816 INFO L87 Difference]: Start difference. First operand 16327 states and 26221 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:59:02,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:59:02,097 INFO L93 Difference]: Finished difference Result 50131 states and 79562 transitions. [2022-01-10 23:59:02,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 23:59:02,097 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-10 23:59:02,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:59:02,162 INFO L225 Difference]: With dead ends: 50131 [2022-01-10 23:59:02,162 INFO L226 Difference]: Without dead ends: 38533 [2022-01-10 23:59:02,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 23:59:02,224 INFO L933 BasicCegarLoop]: 1709 mSDtfsCounter, 3275 mSDsluCounter, 5000 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3275 SdHoareTripleChecker+Valid, 6709 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:59:02,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3275 Valid, 6709 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:59:02,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38533 states.