/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec1_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 05:32:59,338 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 05:32:59,340 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 05:32:59,402 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 05:32:59,403 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 05:32:59,403 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 05:32:59,404 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 05:32:59,406 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 05:32:59,410 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 05:32:59,413 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 05:32:59,414 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 05:32:59,416 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 05:32:59,416 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 05:32:59,418 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 05:32:59,419 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 05:32:59,424 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 05:32:59,425 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 05:32:59,425 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 05:32:59,428 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 05:32:59,432 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 05:32:59,433 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 05:32:59,434 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 05:32:59,435 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 05:32:59,435 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 05:32:59,441 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 05:32:59,442 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 05:32:59,442 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 05:32:59,443 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 05:32:59,443 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 05:32:59,444 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 05:32:59,444 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 05:32:59,444 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 05:32:59,445 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 05:32:59,446 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 05:32:59,447 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 05:32:59,447 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 05:32:59,448 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 05:32:59,448 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 05:32:59,448 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 05:32:59,448 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 05:32:59,449 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 05:32:59,450 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 05:32:59,474 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 05:32:59,474 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 05:32:59,475 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 05:32:59,475 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 05:32:59,476 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 05:32:59,476 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 05:32:59,476 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 05:32:59,476 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 05:32:59,476 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 05:32:59,476 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 05:32:59,477 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 05:32:59,477 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 05:32:59,477 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 05:32:59,477 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 05:32:59,477 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 05:32:59,477 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 05:32:59,477 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 05:32:59,477 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 05:32:59,478 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 05:32:59,478 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 05:32:59,478 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 05:32:59,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:32:59,479 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 05:32:59,479 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 05:32:59,479 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 05:32:59,479 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 05:32:59,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 05:32:59,479 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 05:32:59,479 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 05:32:59,479 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 05:32:59,479 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 05:32:59,480 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 05:32:59,480 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 05:32:59,480 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 05:32:59,646 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 05:32:59,665 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 05:32:59,667 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 05:32:59,667 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 05:32:59,668 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 05:32:59,669 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec1_product32.cil.c [2022-01-11 05:32:59,721 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d978e5a3f/eb731a5d5d1c46048c2d7aaae9dd110a/FLAG6450c1d6e [2022-01-11 05:33:00,177 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 05:33:00,178 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product32.cil.c [2022-01-11 05:33:00,196 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d978e5a3f/eb731a5d5d1c46048c2d7aaae9dd110a/FLAG6450c1d6e [2022-01-11 05:33:00,205 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d978e5a3f/eb731a5d5d1c46048c2d7aaae9dd110a [2022-01-11 05:33:00,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 05:33:00,208 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 05:33:00,211 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 05:33:00,211 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 05:33:00,213 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 05:33:00,213 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:33:00" (1/1) ... [2022-01-11 05:33:00,214 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f591363 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:00, skipping insertion in model container [2022-01-11 05:33:00,214 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:33:00" (1/1) ... [2022-01-11 05:33:00,218 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 05:33:00,267 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:33:00,410 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product32.cil.c[4316,4329] [2022-01-11 05:33:00,617 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:33:00,632 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 05:33:00,645 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:33:00,668 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product32.cil.c[4316,4329] [2022-01-11 05:33:00,740 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:33:00,751 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 05:33:00,769 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product32.cil.c[4316,4329] [2022-01-11 05:33:00,808 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:33:00,826 INFO L208 MainTranslator]: Completed translation [2022-01-11 05:33:00,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:00 WrapperNode [2022-01-11 05:33:00,826 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 05:33:00,827 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 05:33:00,827 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 05:33:00,827 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 05:33:00,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:00" (1/1) ... [2022-01-11 05:33:00,866 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:00" (1/1) ... [2022-01-11 05:33:01,073 INFO L137 Inliner]: procedures = 101, calls = 356, calls flagged for inlining = 208, calls inlined = 836, statements flattened = 27559 [2022-01-11 05:33:01,073 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 05:33:01,074 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 05:33:01,075 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 05:33:01,075 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 05:33:01,081 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:00" (1/1) ... [2022-01-11 05:33:01,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:00" (1/1) ... [2022-01-11 05:33:01,125 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:00" (1/1) ... [2022-01-11 05:33:01,125 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:00" (1/1) ... [2022-01-11 05:33:01,354 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:00" (1/1) ... [2022-01-11 05:33:01,508 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:00" (1/1) ... [2022-01-11 05:33:01,535 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:00" (1/1) ... [2022-01-11 05:33:01,607 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 05:33:01,608 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 05:33:01,609 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 05:33:01,610 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 05:33:01,610 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:00" (1/1) ... [2022-01-11 05:33:01,616 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:33:01,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:33:01,639 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-11 05:33:01,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-11 05:33:01,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 05:33:01,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 05:33:01,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 05:33:01,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 05:33:01,846 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 05:33:01,847 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 05:33:10,302 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 05:33:10,342 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 05:33:10,342 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 05:33:10,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:33:10 BoogieIcfgContainer [2022-01-11 05:33:10,351 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 05:33:10,351 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 05:33:10,351 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 05:33:10,352 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 05:33:10,354 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:33:10" (1/1) ... [2022-01-11 05:33:11,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:33:11 BasicIcfg [2022-01-11 05:33:11,640 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 05:33:11,641 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 05:33:11,641 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 05:33:11,643 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 05:33:11,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:33:00" (1/4) ... [2022-01-11 05:33:11,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dfc51c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:33:11, skipping insertion in model container [2022-01-11 05:33:11,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:00" (2/4) ... [2022-01-11 05:33:11,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dfc51c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:33:11, skipping insertion in model container [2022-01-11 05:33:11,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:33:10" (3/4) ... [2022-01-11 05:33:11,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dfc51c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:33:11, skipping insertion in model container [2022-01-11 05:33:11,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:33:11" (4/4) ... [2022-01-11 05:33:11,645 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product32.cil.cTransformedIcfg [2022-01-11 05:33:11,648 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 05:33:11,649 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-01-11 05:33:11,708 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 05:33:11,714 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-11 05:33:11,715 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-11 05:33:11,807 INFO L276 IsEmpty]: Start isEmpty. Operand has 7241 states, 7235 states have (on average 1.8722874913614374) internal successors, (13546), 7240 states have internal predecessors, (13546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:11,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-11 05:33:11,824 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:11,825 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:11,825 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:11,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:11,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1269560122, now seen corresponding path program 1 times [2022-01-11 05:33:11,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:11,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724533417] [2022-01-11 05:33:11,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:11,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:12,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:12,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:12,167 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:12,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724533417] [2022-01-11 05:33:12,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724533417] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:12,168 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:12,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:33:12,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992764900] [2022-01-11 05:33:12,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:12,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:33:12,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:12,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:33:12,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:12,245 INFO L87 Difference]: Start difference. First operand has 7241 states, 7235 states have (on average 1.8722874913614374) internal successors, (13546), 7240 states have internal predecessors, (13546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:12,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:12,704 INFO L93 Difference]: Finished difference Result 21628 states and 40478 transitions. [2022-01-11 05:33:12,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:12,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2022-01-11 05:33:12,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:12,780 INFO L225 Difference]: With dead ends: 21628 [2022-01-11 05:33:12,781 INFO L226 Difference]: Without dead ends: 14389 [2022-01-11 05:33:12,800 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:12,802 INFO L933 BasicCegarLoop]: 26927 mSDtfsCounter, 13507 mSDsluCounter, 13413 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13507 SdHoareTripleChecker+Valid, 40340 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:12,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13507 Valid, 40340 Invalid, 24 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:12,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14389 states. [2022-01-11 05:33:13,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14389 to 7230. [2022-01-11 05:33:13,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7230 states, 7225 states have (on average 1.8715570934256056) internal successors, (13522), 7229 states have internal predecessors, (13522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:13,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7230 states to 7230 states and 13522 transitions. [2022-01-11 05:33:13,066 INFO L78 Accepts]: Start accepts. Automaton has 7230 states and 13522 transitions. Word has length 46 [2022-01-11 05:33:13,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:13,066 INFO L470 AbstractCegarLoop]: Abstraction has 7230 states and 13522 transitions. [2022-01-11 05:33:13,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:13,067 INFO L276 IsEmpty]: Start isEmpty. Operand 7230 states and 13522 transitions. [2022-01-11 05:33:13,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-01-11 05:33:13,069 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:13,070 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:13,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 05:33:13,070 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:13,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:13,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1555347487, now seen corresponding path program 1 times [2022-01-11 05:33:13,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:13,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026071505] [2022-01-11 05:33:13,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:13,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:13,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:13,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:13,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:13,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026071505] [2022-01-11 05:33:13,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026071505] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:13,186 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:13,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:33:13,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684631097] [2022-01-11 05:33:13,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:13,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:33:13,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:13,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:33:13,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:13,189 INFO L87 Difference]: Start difference. First operand 7230 states and 13522 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:13,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:13,682 INFO L93 Difference]: Finished difference Result 21533 states and 40286 transitions. [2022-01-11 05:33:13,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:13,683 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-01-11 05:33:13,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:13,744 INFO L225 Difference]: With dead ends: 21533 [2022-01-11 05:33:13,744 INFO L226 Difference]: Without dead ends: 14353 [2022-01-11 05:33:13,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:13,762 INFO L933 BasicCegarLoop]: 26790 mSDtfsCounter, 13409 mSDsluCounter, 13353 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13409 SdHoareTripleChecker+Valid, 40143 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:13,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13409 Valid, 40143 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:33:13,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14353 states. [2022-01-11 05:33:13,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14353 to 7230. [2022-01-11 05:33:13,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7230 states, 7225 states have (on average 1.8680968858131488) internal successors, (13497), 7229 states have internal predecessors, (13497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:13,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7230 states to 7230 states and 13497 transitions. [2022-01-11 05:33:13,972 INFO L78 Accepts]: Start accepts. Automaton has 7230 states and 13497 transitions. Word has length 53 [2022-01-11 05:33:13,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:13,973 INFO L470 AbstractCegarLoop]: Abstraction has 7230 states and 13497 transitions. [2022-01-11 05:33:13,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:13,976 INFO L276 IsEmpty]: Start isEmpty. Operand 7230 states and 13497 transitions. [2022-01-11 05:33:13,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-11 05:33:13,984 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:13,984 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:13,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 05:33:13,984 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:13,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:13,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1058344928, now seen corresponding path program 1 times [2022-01-11 05:33:13,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:13,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55998247] [2022-01-11 05:33:13,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:13,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:14,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:14,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:14,051 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:14,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55998247] [2022-01-11 05:33:14,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55998247] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:14,053 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:14,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:33:14,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84059546] [2022-01-11 05:33:14,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:14,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:33:14,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:14,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:33:14,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:14,054 INFO L87 Difference]: Start difference. First operand 7230 states and 13497 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:14,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:14,216 INFO L93 Difference]: Finished difference Result 14389 states and 26896 transitions. [2022-01-11 05:33:14,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:14,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-01-11 05:33:14,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:14,235 INFO L225 Difference]: With dead ends: 14389 [2022-01-11 05:33:14,235 INFO L226 Difference]: Without dead ends: 7230 [2022-01-11 05:33:14,250 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:14,253 INFO L933 BasicCegarLoop]: 13478 mSDtfsCounter, 13486 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13486 SdHoareTripleChecker+Valid, 13485 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:14,254 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13486 Valid, 13485 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:14,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7230 states. [2022-01-11 05:33:14,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7230 to 7230. [2022-01-11 05:33:14,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7230 states, 7225 states have (on average 1.8678200692041522) internal successors, (13495), 7229 states have internal predecessors, (13495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:14,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7230 states to 7230 states and 13495 transitions. [2022-01-11 05:33:14,410 INFO L78 Accepts]: Start accepts. Automaton has 7230 states and 13495 transitions. Word has length 56 [2022-01-11 05:33:14,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:14,411 INFO L470 AbstractCegarLoop]: Abstraction has 7230 states and 13495 transitions. [2022-01-11 05:33:14,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:14,411 INFO L276 IsEmpty]: Start isEmpty. Operand 7230 states and 13495 transitions. [2022-01-11 05:33:14,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-11 05:33:14,412 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:14,412 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:14,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 05:33:14,413 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:14,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:14,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1268970298, now seen corresponding path program 1 times [2022-01-11 05:33:14,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:14,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694891919] [2022-01-11 05:33:14,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:14,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:14,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:14,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:14,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:14,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694891919] [2022-01-11 05:33:14,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694891919] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:14,471 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:14,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:33:14,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396329884] [2022-01-11 05:33:14,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:14,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:33:14,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:14,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:33:14,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:14,472 INFO L87 Difference]: Start difference. First operand 7230 states and 13495 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:14,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:14,733 INFO L93 Difference]: Finished difference Result 14353 states and 26823 transitions. [2022-01-11 05:33:14,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:14,734 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-01-11 05:33:14,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:14,753 INFO L225 Difference]: With dead ends: 14353 [2022-01-11 05:33:14,753 INFO L226 Difference]: Without dead ends: 7230 [2022-01-11 05:33:14,767 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:14,774 INFO L933 BasicCegarLoop]: 13400 mSDtfsCounter, 13467 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13467 SdHoareTripleChecker+Valid, 13415 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:14,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13467 Valid, 13415 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:33:14,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7230 states. [2022-01-11 05:33:14,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7230 to 7230. [2022-01-11 05:33:14,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7230 states, 7225 states have (on average 1.8664359861591695) internal successors, (13485), 7229 states have internal predecessors, (13485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:15,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7230 states to 7230 states and 13485 transitions. [2022-01-11 05:33:15,010 INFO L78 Accepts]: Start accepts. Automaton has 7230 states and 13485 transitions. Word has length 58 [2022-01-11 05:33:15,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:15,012 INFO L470 AbstractCegarLoop]: Abstraction has 7230 states and 13485 transitions. [2022-01-11 05:33:15,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:15,012 INFO L276 IsEmpty]: Start isEmpty. Operand 7230 states and 13485 transitions. [2022-01-11 05:33:15,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-11 05:33:15,015 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:15,015 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:15,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 05:33:15,015 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:15,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:15,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1648248636, now seen corresponding path program 1 times [2022-01-11 05:33:15,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:15,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957405148] [2022-01-11 05:33:15,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:15,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:15,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:15,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:15,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:15,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957405148] [2022-01-11 05:33:15,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957405148] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:15,101 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:15,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:33:15,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332671044] [2022-01-11 05:33:15,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:15,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:33:15,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:15,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:33:15,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:15,102 INFO L87 Difference]: Start difference. First operand 7230 states and 13485 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:15,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:15,683 INFO L93 Difference]: Finished difference Result 17993 states and 33616 transitions. [2022-01-11 05:33:15,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:15,684 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-01-11 05:33:15,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:15,716 INFO L225 Difference]: With dead ends: 17993 [2022-01-11 05:33:15,716 INFO L226 Difference]: Without dead ends: 14386 [2022-01-11 05:33:15,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:15,725 INFO L933 BasicCegarLoop]: 20186 mSDtfsCounter, 13463 mSDsluCounter, 13393 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13463 SdHoareTripleChecker+Valid, 33579 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:15,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13463 Valid, 33579 Invalid, 17 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:15,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14386 states. [2022-01-11 05:33:15,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14386 to 14386. [2022-01-11 05:33:15,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14386 states, 14381 states have (on average 1.8689242750851818) internal successors, (26877), 14385 states have internal predecessors, (26877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:16,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14386 states to 14386 states and 26877 transitions. [2022-01-11 05:33:16,035 INFO L78 Accepts]: Start accepts. Automaton has 14386 states and 26877 transitions. Word has length 60 [2022-01-11 05:33:16,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:16,037 INFO L470 AbstractCegarLoop]: Abstraction has 14386 states and 26877 transitions. [2022-01-11 05:33:16,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:16,038 INFO L276 IsEmpty]: Start isEmpty. Operand 14386 states and 26877 transitions. [2022-01-11 05:33:16,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-11 05:33:16,039 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:16,039 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:16,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 05:33:16,040 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:16,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:16,040 INFO L85 PathProgramCache]: Analyzing trace with hash -443863990, now seen corresponding path program 1 times [2022-01-11 05:33:16,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:16,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66127245] [2022-01-11 05:33:16,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:16,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:16,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:16,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:16,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:16,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66127245] [2022-01-11 05:33:16,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66127245] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:16,105 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:16,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:33:16,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144341136] [2022-01-11 05:33:16,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:16,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:33:16,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:16,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:33:16,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:16,106 INFO L87 Difference]: Start difference. First operand 14386 states and 26877 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) [2022-01-11 05:33:16,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:16,499 INFO L93 Difference]: Finished difference Result 35830 states and 67006 transitions. [2022-01-11 05:33:16,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:16,499 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 [2022-01-11 05:33:16,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:16,580 INFO L225 Difference]: With dead ends: 35830 [2022-01-11 05:33:16,580 INFO L226 Difference]: Without dead ends: 28640 [2022-01-11 05:33:16,607 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:16,608 INFO L933 BasicCegarLoop]: 13482 mSDtfsCounter, 13419 mSDsluCounter, 13396 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13419 SdHoareTripleChecker+Valid, 26878 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:16,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13419 Valid, 26878 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:16,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28640 states. [2022-01-11 05:33:17,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28640 to 28638. [2022-01-11 05:33:17,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28638 states, 28633 states have (on average 1.8705339992316559) internal successors, (53559), 28637 states have internal predecessors, (53559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:17,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28638 states to 28638 states and 53559 transitions. [2022-01-11 05:33:17,432 INFO L78 Accepts]: Start accepts. Automaton has 28638 states and 53559 transitions. Word has length 61 [2022-01-11 05:33:17,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:17,433 INFO L470 AbstractCegarLoop]: Abstraction has 28638 states and 53559 transitions. [2022-01-11 05:33:17,433 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) [2022-01-11 05:33:17,433 INFO L276 IsEmpty]: Start isEmpty. Operand 28638 states and 53559 transitions. [2022-01-11 05:33:17,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-11 05:33:17,436 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:17,436 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:17,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 05:33:17,436 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:17,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:17,437 INFO L85 PathProgramCache]: Analyzing trace with hash -611663619, now seen corresponding path program 1 times [2022-01-11 05:33:17,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:17,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055223874] [2022-01-11 05:33:17,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:17,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:17,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:17,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:17,694 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:17,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055223874] [2022-01-11 05:33:17,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055223874] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:17,694 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:17,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:33:17,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38750656] [2022-01-11 05:33:17,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:17,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:33:17,695 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:17,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:33:17,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:33:17,695 INFO L87 Difference]: Start difference. First operand 28638 states and 53559 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:20,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:20,224 INFO L93 Difference]: Finished difference Result 171044 states and 320149 transitions. [2022-01-11 05:33:20,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-11 05:33:20,224 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-01-11 05:33:20,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:20,837 INFO L225 Difference]: With dead ends: 171044 [2022-01-11 05:33:20,837 INFO L226 Difference]: Without dead ends: 142435 [2022-01-11 05:33:20,906 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:33:20,908 INFO L933 BasicCegarLoop]: 53487 mSDtfsCounter, 40175 mSDsluCounter, 66823 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40175 SdHoareTripleChecker+Valid, 120310 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:20,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40175 Valid, 120310 Invalid, 56 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:21,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142435 states. [2022-01-11 05:33:22,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142435 to 28626. [2022-01-11 05:33:22,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28626 states, 28621 states have (on average 1.8707592327312113) internal successors, (53543), 28625 states have internal predecessors, (53543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:22,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28626 states to 28626 states and 53543 transitions. [2022-01-11 05:33:22,639 INFO L78 Accepts]: Start accepts. Automaton has 28626 states and 53543 transitions. Word has length 61 [2022-01-11 05:33:22,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:22,639 INFO L470 AbstractCegarLoop]: Abstraction has 28626 states and 53543 transitions. [2022-01-11 05:33:22,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:22,639 INFO L276 IsEmpty]: Start isEmpty. Operand 28626 states and 53543 transitions. [2022-01-11 05:33:22,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-11 05:33:22,642 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:22,642 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:22,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 05:33:22,643 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:22,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:22,643 INFO L85 PathProgramCache]: Analyzing trace with hash -2033579885, now seen corresponding path program 1 times [2022-01-11 05:33:22,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:22,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266093775] [2022-01-11 05:33:22,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:22,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:22,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:22,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:22,746 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:22,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266093775] [2022-01-11 05:33:22,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266093775] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:22,746 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:22,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:33:22,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069045379] [2022-01-11 05:33:22,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:22,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:33:22,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:22,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:33:22,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:33:22,748 INFO L87 Difference]: Start difference. First operand 28626 states and 53543 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:25,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:25,904 INFO L93 Difference]: Finished difference Result 142510 states and 266749 transitions. [2022-01-11 05:33:25,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:33:25,905 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-01-11 05:33:25,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:26,189 INFO L225 Difference]: With dead ends: 142510 [2022-01-11 05:33:26,189 INFO L226 Difference]: Without dead ends: 113913 [2022-01-11 05:33:26,242 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:33:26,243 INFO L933 BasicCegarLoop]: 53377 mSDtfsCounter, 53471 mSDsluCounter, 53377 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53471 SdHoareTripleChecker+Valid, 106754 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:26,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53471 Valid, 106754 Invalid, 133 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [24 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:33:26,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113913 states. [2022-01-11 05:33:27,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113913 to 28626. [2022-01-11 05:33:27,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28626 states, 28621 states have (on average 1.8701652632682295) internal successors, (53526), 28625 states have internal predecessors, (53526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:27,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28626 states to 28626 states and 53526 transitions. [2022-01-11 05:33:27,836 INFO L78 Accepts]: Start accepts. Automaton has 28626 states and 53526 transitions. Word has length 63 [2022-01-11 05:33:27,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:27,836 INFO L470 AbstractCegarLoop]: Abstraction has 28626 states and 53526 transitions. [2022-01-11 05:33:27,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:27,837 INFO L276 IsEmpty]: Start isEmpty. Operand 28626 states and 53526 transitions. [2022-01-11 05:33:27,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-11 05:33:27,839 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:27,839 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:27,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 05:33:27,839 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:27,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:27,840 INFO L85 PathProgramCache]: Analyzing trace with hash 2137314164, now seen corresponding path program 1 times [2022-01-11 05:33:27,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:27,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852087997] [2022-01-11 05:33:27,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:27,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:27,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:27,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:27,897 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:27,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852087997] [2022-01-11 05:33:27,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852087997] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:27,897 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:27,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:33:27,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502917299] [2022-01-11 05:33:27,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:27,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:33:27,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:27,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:33:27,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:33:27,902 INFO L87 Difference]: Start difference. First operand 28626 states and 53526 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:30,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:30,635 INFO L93 Difference]: Finished difference Result 114216 states and 213685 transitions. [2022-01-11 05:33:30,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:33:30,639 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-01-11 05:33:30,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:30,804 INFO L225 Difference]: With dead ends: 114216 [2022-01-11 05:33:30,805 INFO L226 Difference]: Without dead ends: 85613 [2022-01-11 05:33:30,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:33:30,831 INFO L933 BasicCegarLoop]: 13470 mSDtfsCounter, 40193 mSDsluCounter, 40149 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40193 SdHoareTripleChecker+Valid, 53619 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:30,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40193 Valid, 53619 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:30,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85613 states. [2022-01-11 05:33:32,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85613 to 28634. [2022-01-11 05:33:32,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28634 states, 28629 states have (on average 1.8698173181040203) internal successors, (53531), 28633 states have internal predecessors, (53531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:32,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28634 states to 28634 states and 53531 transitions. [2022-01-11 05:33:32,152 INFO L78 Accepts]: Start accepts. Automaton has 28634 states and 53531 transitions. Word has length 63 [2022-01-11 05:33:32,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:32,153 INFO L470 AbstractCegarLoop]: Abstraction has 28634 states and 53531 transitions. [2022-01-11 05:33:32,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:32,153 INFO L276 IsEmpty]: Start isEmpty. Operand 28634 states and 53531 transitions. [2022-01-11 05:33:32,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-11 05:33:32,164 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:32,164 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:32,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 05:33:32,165 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:32,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:32,172 INFO L85 PathProgramCache]: Analyzing trace with hash 469714354, now seen corresponding path program 1 times [2022-01-11 05:33:32,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:32,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739040804] [2022-01-11 05:33:32,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:32,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:32,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:32,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:32,266 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:32,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739040804] [2022-01-11 05:33:32,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739040804] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:32,267 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:32,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:33:32,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731543654] [2022-01-11 05:33:32,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:32,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:33:32,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:32,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:33:32,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:33:32,268 INFO L87 Difference]: Start difference. First operand 28634 states and 53531 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:36,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:36,508 INFO L93 Difference]: Finished difference Result 142597 states and 266825 transitions. [2022-01-11 05:33:36,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:33:36,509 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-01-11 05:33:36,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:36,767 INFO L225 Difference]: With dead ends: 142597 [2022-01-11 05:33:36,768 INFO L226 Difference]: Without dead ends: 113979 [2022-01-11 05:33:36,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:33:36,813 INFO L933 BasicCegarLoop]: 53446 mSDtfsCounter, 53502 mSDsluCounter, 53425 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53502 SdHoareTripleChecker+Valid, 106871 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:36,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53502 Valid, 106871 Invalid, 32 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:36,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113979 states. [2022-01-11 05:33:38,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113979 to 28626. [2022-01-11 05:33:38,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28626 states, 28621 states have (on average 1.8698857482268265) internal successors, (53518), 28625 states have internal predecessors, (53518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:38,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28626 states to 28626 states and 53518 transitions. [2022-01-11 05:33:38,680 INFO L78 Accepts]: Start accepts. Automaton has 28626 states and 53518 transitions. Word has length 64 [2022-01-11 05:33:38,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:38,680 INFO L470 AbstractCegarLoop]: Abstraction has 28626 states and 53518 transitions. [2022-01-11 05:33:38,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:38,681 INFO L276 IsEmpty]: Start isEmpty. Operand 28626 states and 53518 transitions. [2022-01-11 05:33:38,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-11 05:33:38,684 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:38,684 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:38,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 05:33:38,684 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:38,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:38,685 INFO L85 PathProgramCache]: Analyzing trace with hash 636284204, now seen corresponding path program 1 times [2022-01-11 05:33:38,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:38,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558266138] [2022-01-11 05:33:38,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:38,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:38,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:38,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:38,734 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:38,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558266138] [2022-01-11 05:33:38,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558266138] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:38,734 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:38,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:33:38,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074879981] [2022-01-11 05:33:38,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:38,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:33:38,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:38,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:33:38,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:33:38,735 INFO L87 Difference]: Start difference. First operand 28626 states and 53518 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:42,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:42,200 INFO L93 Difference]: Finished difference Result 114021 states and 213356 transitions. [2022-01-11 05:33:42,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:33:42,201 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-01-11 05:33:42,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:42,386 INFO L225 Difference]: With dead ends: 114021 [2022-01-11 05:33:42,386 INFO L226 Difference]: Without dead ends: 85442 [2022-01-11 05:33:42,426 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:33:42,427 INFO L933 BasicCegarLoop]: 13408 mSDtfsCounter, 53474 mSDsluCounter, 40000 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53474 SdHoareTripleChecker+Valid, 53408 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:42,427 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53474 Valid, 53408 Invalid, 55 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:42,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85442 states. [2022-01-11 05:33:43,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85442 to 28652. [2022-01-11 05:33:43,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28652 states, 28647 states have (on average 1.8695151324746047) internal successors, (53556), 28651 states have internal predecessors, (53556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:44,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28652 states to 28652 states and 53556 transitions. [2022-01-11 05:33:44,027 INFO L78 Accepts]: Start accepts. Automaton has 28652 states and 53556 transitions. Word has length 65 [2022-01-11 05:33:44,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:44,028 INFO L470 AbstractCegarLoop]: Abstraction has 28652 states and 53556 transitions. [2022-01-11 05:33:44,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:44,028 INFO L276 IsEmpty]: Start isEmpty. Operand 28652 states and 53556 transitions. [2022-01-11 05:33:44,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-11 05:33:44,031 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:44,031 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:44,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 05:33:44,032 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:44,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:44,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1016273540, now seen corresponding path program 1 times [2022-01-11 05:33:44,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:44,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488428821] [2022-01-11 05:33:44,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:44,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:44,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:44,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:44,092 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:44,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488428821] [2022-01-11 05:33:44,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488428821] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:44,092 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:44,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:33:44,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705959855] [2022-01-11 05:33:44,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:44,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:33:44,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:44,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:33:44,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:33:44,093 INFO L87 Difference]: Start difference. First operand 28652 states and 53556 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:46,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:46,324 INFO L93 Difference]: Finished difference Result 64234 states and 120157 transitions. [2022-01-11 05:33:46,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:33:46,325 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-01-11 05:33:46,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:46,393 INFO L225 Difference]: With dead ends: 64234 [2022-01-11 05:33:46,394 INFO L226 Difference]: Without dead ends: 42767 [2022-01-11 05:33:46,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:33:46,415 INFO L933 BasicCegarLoop]: 13401 mSDtfsCounter, 40022 mSDsluCounter, 13389 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40022 SdHoareTripleChecker+Valid, 26790 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:46,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40022 Valid, 26790 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:46,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42767 states. [2022-01-11 05:33:47,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42767 to 28572. [2022-01-11 05:33:47,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28572 states, 28567 states have (on average 1.870199880981552) internal successors, (53426), 28571 states have internal predecessors, (53426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:47,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28572 states to 28572 states and 53426 transitions. [2022-01-11 05:33:47,807 INFO L78 Accepts]: Start accepts. Automaton has 28572 states and 53426 transitions. Word has length 67 [2022-01-11 05:33:47,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:47,807 INFO L470 AbstractCegarLoop]: Abstraction has 28572 states and 53426 transitions. [2022-01-11 05:33:47,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:47,807 INFO L276 IsEmpty]: Start isEmpty. Operand 28572 states and 53426 transitions. [2022-01-11 05:33:47,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-01-11 05:33:47,810 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:47,810 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] [2022-01-11 05:33:47,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 05:33:47,811 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:47,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:47,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1219777860, now seen corresponding path program 1 times [2022-01-11 05:33:47,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:47,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940302844] [2022-01-11 05:33:47,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:47,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:47,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:47,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:47,866 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:47,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940302844] [2022-01-11 05:33:47,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940302844] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:47,867 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:47,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:33:47,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341900627] [2022-01-11 05:33:47,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:47,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:33:47,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:47,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:33:47,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:33:47,868 INFO L87 Difference]: Start difference. First operand 28572 states and 53426 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 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) [2022-01-11 05:33:48,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:48,765 INFO L93 Difference]: Finished difference Result 42803 states and 80058 transitions. [2022-01-11 05:33:48,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:48,765 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 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 [2022-01-11 05:33:48,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:48,798 INFO L225 Difference]: With dead ends: 42803 [2022-01-11 05:33:48,798 INFO L226 Difference]: Without dead ends: 14332 [2022-01-11 05:33:48,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:33:48,824 INFO L933 BasicCegarLoop]: 13408 mSDtfsCounter, 13365 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13365 SdHoareTripleChecker+Valid, 13522 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:48,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13365 Valid, 13522 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:48,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14332 states. [2022-01-11 05:33:49,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14332 to 14332. [2022-01-11 05:33:49,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14332 states, 14328 states have (on average 1.8684394193188163) internal successors, (26771), 14331 states have internal predecessors, (26771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:49,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14332 states to 14332 states and 26771 transitions. [2022-01-11 05:33:49,743 INFO L78 Accepts]: Start accepts. Automaton has 14332 states and 26771 transitions. Word has length 68 [2022-01-11 05:33:49,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:49,744 INFO L470 AbstractCegarLoop]: Abstraction has 14332 states and 26771 transitions. [2022-01-11 05:33:49,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 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) [2022-01-11 05:33:49,744 INFO L276 IsEmpty]: Start isEmpty. Operand 14332 states and 26771 transitions. [2022-01-11 05:33:49,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-01-11 05:33:49,746 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:49,746 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, 1, 1, 1, 1, 1] [2022-01-11 05:33:49,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 05:33:49,747 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:49,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:49,747 INFO L85 PathProgramCache]: Analyzing trace with hash 710402392, now seen corresponding path program 1 times [2022-01-11 05:33:49,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:49,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558373831] [2022-01-11 05:33:49,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:49,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:49,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:49,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:49,793 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:49,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558373831] [2022-01-11 05:33:49,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558373831] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:49,793 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:49,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:33:49,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143717241] [2022-01-11 05:33:49,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:49,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:33:49,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:49,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:33:49,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:33:49,794 INFO L87 Difference]: Start difference. First operand 14332 states and 26771 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:50,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:50,666 INFO L93 Difference]: Finished difference Result 28551 states and 53385 transitions. [2022-01-11 05:33:50,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:33:50,666 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2022-01-11 05:33:50,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:50,692 INFO L225 Difference]: With dead ends: 28551 [2022-01-11 05:33:50,692 INFO L226 Difference]: Without dead ends: 14320 [2022-01-11 05:33:50,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:33:50,708 INFO L933 BasicCegarLoop]: 13391 mSDtfsCounter, 26702 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26702 SdHoareTripleChecker+Valid, 13480 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:50,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26702 Valid, 13480 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:50,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14320 states. [2022-01-11 05:33:51,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14320 to 14320. [2022-01-11 05:33:51,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14320 states, 14316 states have (on average 1.8686085498742666) internal successors, (26751), 14319 states have internal predecessors, (26751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:51,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14320 states to 14320 states and 26751 transitions. [2022-01-11 05:33:51,458 INFO L78 Accepts]: Start accepts. Automaton has 14320 states and 26751 transitions. Word has length 70 [2022-01-11 05:33:51,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:51,458 INFO L470 AbstractCegarLoop]: Abstraction has 14320 states and 26751 transitions. [2022-01-11 05:33:51,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:51,459 INFO L276 IsEmpty]: Start isEmpty. Operand 14320 states and 26751 transitions. [2022-01-11 05:33:51,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-01-11 05:33:51,460 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:51,460 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] [2022-01-11 05:33:51,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 05:33:51,460 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:51,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:51,461 INFO L85 PathProgramCache]: Analyzing trace with hash 283897716, now seen corresponding path program 1 times [2022-01-11 05:33:51,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:51,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903839969] [2022-01-11 05:33:51,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:51,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:51,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:51,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:51,518 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:51,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903839969] [2022-01-11 05:33:51,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903839969] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:51,518 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:51,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 05:33:51,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182786007] [2022-01-11 05:33:51,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:51,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:33:51,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:51,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:33:51,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:33:51,520 INFO L87 Difference]: Start difference. First operand 14320 states and 26751 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:52,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:52,375 INFO L93 Difference]: Finished difference Result 28577 states and 53411 transitions. [2022-01-11 05:33:52,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 05:33:52,375 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2022-01-11 05:33:52,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:52,394 INFO L225 Difference]: With dead ends: 28577 [2022-01-11 05:33:52,394 INFO L226 Difference]: Without dead ends: 14382 [2022-01-11 05:33:52,401 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:33:52,402 INFO L933 BasicCegarLoop]: 13414 mSDtfsCounter, 40118 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40118 SdHoareTripleChecker+Valid, 13530 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:52,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40118 Valid, 13530 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:52,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14382 states. [2022-01-11 05:33:53,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14382 to 14320. [2022-01-11 05:33:53,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14320 states, 14316 states have (on average 1.8684688460463816) internal successors, (26749), 14319 states have internal predecessors, (26749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:53,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14320 states to 14320 states and 26749 transitions. [2022-01-11 05:33:53,098 INFO L78 Accepts]: Start accepts. Automaton has 14320 states and 26749 transitions. Word has length 70 [2022-01-11 05:33:53,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:53,098 INFO L470 AbstractCegarLoop]: Abstraction has 14320 states and 26749 transitions. [2022-01-11 05:33:53,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:53,099 INFO L276 IsEmpty]: Start isEmpty. Operand 14320 states and 26749 transitions. [2022-01-11 05:33:53,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-01-11 05:33:53,100 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:53,100 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:53,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 05:33:53,100 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:53,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:53,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1448364537, now seen corresponding path program 1 times [2022-01-11 05:33:53,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:53,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937426531] [2022-01-11 05:33:53,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:53,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:53,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:53,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:53,199 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:53,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937426531] [2022-01-11 05:33:53,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937426531] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:53,199 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:53,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-11 05:33:53,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746236644] [2022-01-11 05:33:53,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:53,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 05:33:53,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:53,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 05:33:53,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:33:53,200 INFO L87 Difference]: Start difference. First operand 14320 states and 26749 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:55,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:55,664 INFO L93 Difference]: Finished difference Result 56993 states and 106597 transitions. [2022-01-11 05:33:55,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-11 05:33:55,665 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-01-11 05:33:55,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:55,752 INFO L225 Difference]: With dead ends: 56993 [2022-01-11 05:33:55,752 INFO L226 Difference]: Without dead ends: 42798 [2022-01-11 05:33:55,785 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-01-11 05:33:55,786 INFO L933 BasicCegarLoop]: 26711 mSDtfsCounter, 80110 mSDsluCounter, 40087 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80110 SdHoareTripleChecker+Valid, 66798 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:55,786 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80110 Valid, 66798 Invalid, 79 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:33:55,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42798 states. [2022-01-11 05:33:56,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42798 to 14340. [2022-01-11 05:33:56,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14340 states, 14336 states have (on average 1.8678152901785714) internal successors, (26777), 14339 states have internal predecessors, (26777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:56,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14340 states to 14340 states and 26777 transitions. [2022-01-11 05:33:56,732 INFO L78 Accepts]: Start accepts. Automaton has 14340 states and 26777 transitions. Word has length 71 [2022-01-11 05:33:56,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:56,732 INFO L470 AbstractCegarLoop]: Abstraction has 14340 states and 26777 transitions. [2022-01-11 05:33:56,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:56,732 INFO L276 IsEmpty]: Start isEmpty. Operand 14340 states and 26777 transitions. [2022-01-11 05:33:56,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-01-11 05:33:56,734 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:56,734 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:56,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-11 05:33:56,734 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:56,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:56,735 INFO L85 PathProgramCache]: Analyzing trace with hash -806604848, now seen corresponding path program 1 times [2022-01-11 05:33:56,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:56,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862715667] [2022-01-11 05:33:56,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:56,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:56,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:56,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:56,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:56,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862715667] [2022-01-11 05:33:56,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862715667] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:56,812 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:56,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:33:56,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931669076] [2022-01-11 05:33:56,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:56,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:33:56,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:56,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:33:56,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:33:56,813 INFO L87 Difference]: Start difference. First operand 14340 states and 26777 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) [2022-01-11 05:33:57,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:57,784 INFO L93 Difference]: Finished difference Result 25119 states and 46904 transitions. [2022-01-11 05:33:57,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:33:57,784 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 [2022-01-11 05:33:57,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:57,807 INFO L225 Difference]: With dead ends: 25119 [2022-01-11 05:33:57,807 INFO L226 Difference]: Without dead ends: 14369 [2022-01-11 05:33:57,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:33:57,819 INFO L933 BasicCegarLoop]: 13365 mSDtfsCounter, 13418 mSDsluCounter, 26749 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13418 SdHoareTripleChecker+Valid, 40114 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:57,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13418 Valid, 40114 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:57,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14369 states. [2022-01-11 05:33:58,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14369 to 14337. [2022-01-11 05:33:58,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14337 states, 14333 states have (on average 1.8674387776459918) internal successors, (26766), 14336 states have internal predecessors, (26766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:58,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14337 states to 14337 states and 26766 transitions. [2022-01-11 05:33:58,597 INFO L78 Accepts]: Start accepts. Automaton has 14337 states and 26766 transitions. Word has length 72 [2022-01-11 05:33:58,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:58,597 INFO L470 AbstractCegarLoop]: Abstraction has 14337 states and 26766 transitions. [2022-01-11 05:33:58,597 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) [2022-01-11 05:33:58,597 INFO L276 IsEmpty]: Start isEmpty. Operand 14337 states and 26766 transitions. [2022-01-11 05:33:58,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-01-11 05:33:58,599 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:58,599 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] [2022-01-11 05:33:58,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-11 05:33:58,599 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:58,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:58,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1075045439, now seen corresponding path program 1 times [2022-01-11 05:33:58,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:58,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111437834] [2022-01-11 05:33:58,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:58,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:58,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:58,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:58,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:58,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111437834] [2022-01-11 05:33:58,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111437834] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:58,670 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:58,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:33:58,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741177828] [2022-01-11 05:33:58,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:58,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:33:58,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:58,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:33:58,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:33:58,671 INFO L87 Difference]: Start difference. First operand 14337 states and 26766 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)