/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_spec2_product25.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 05:33:58,230 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 05:33:58,231 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 05:33:58,262 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 05:33:58,263 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 05:33:58,264 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 05:33:58,265 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 05:33:58,267 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 05:33:58,268 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 05:33:58,269 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 05:33:58,270 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 05:33:58,271 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 05:33:58,271 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 05:33:58,272 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 05:33:58,273 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 05:33:58,274 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 05:33:58,275 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 05:33:58,276 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 05:33:58,277 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 05:33:58,279 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 05:33:58,281 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 05:33:58,316 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 05:33:58,317 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 05:33:58,318 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 05:33:58,328 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 05:33:58,328 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 05:33:58,328 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 05:33:58,329 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 05:33:58,329 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 05:33:58,330 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 05:33:58,330 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 05:33:58,331 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 05:33:58,331 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 05:33:58,332 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 05:33:58,333 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 05:33:58,333 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 05:33:58,333 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 05:33:58,334 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 05:33:58,334 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 05:33:58,341 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 05:33:58,342 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 05:33:58,343 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 05:33:58,378 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 05:33:58,378 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 05:33:58,378 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 05:33:58,379 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 05:33:58,379 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 05:33:58,380 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 05:33:58,380 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 05:33:58,380 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 05:33:58,380 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 05:33:58,380 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 05:33:58,380 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 05:33:58,380 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 05:33:58,380 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 05:33:58,381 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 05:33:58,381 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 05:33:58,381 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 05:33:58,381 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 05:33:58,381 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 05:33:58,381 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 05:33:58,381 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 05:33:58,381 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 05:33:58,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:33:58,382 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 05:33:58,382 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 05:33:58,382 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 05:33:58,382 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 05:33:58,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 05:33:58,382 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 05:33:58,382 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 05:33:58,383 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 05:33:58,383 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 05:33:58,385 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 05:33:58,386 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 05:33:58,386 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 05:33:58,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 05:33:58,633 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 05:33:58,635 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 05:33:58,636 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 05:33:58,636 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 05:33:58,637 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product25.cil.c [2022-01-11 05:33:58,691 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/606ea5bee/72f15fbff21c404e94a39af94f45e4a3/FLAGd2bebf728 [2022-01-11 05:33:59,184 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 05:33:59,184 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product25.cil.c [2022-01-11 05:33:59,232 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/606ea5bee/72f15fbff21c404e94a39af94f45e4a3/FLAGd2bebf728 [2022-01-11 05:33:59,720 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/606ea5bee/72f15fbff21c404e94a39af94f45e4a3 [2022-01-11 05:33:59,722 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 05:33:59,724 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 05:33:59,725 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 05:33:59,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 05:33:59,737 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 05:33:59,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:33:59" (1/1) ... [2022-01-11 05:33:59,738 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@512da599 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:59, skipping insertion in model container [2022-01-11 05:33:59,739 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:33:59" (1/1) ... [2022-01-11 05:33:59,745 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 05:33:59,816 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:34:00,288 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_spec2_product25.cil.c[66231,66244] [2022-01-11 05:34:00,318 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:34:00,335 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 05:34:00,353 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:34:00,460 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_spec2_product25.cil.c[66231,66244] [2022-01-11 05:34:00,469 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:34:00,476 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 05:34:00,557 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_spec2_product25.cil.c[66231,66244] [2022-01-11 05:34:00,561 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:34:00,583 INFO L208 MainTranslator]: Completed translation [2022-01-11 05:34:00,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:00 WrapperNode [2022-01-11 05:34:00,584 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 05:34:00,585 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 05:34:00,585 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 05:34:00,585 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 05:34:00,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:00" (1/1) ... [2022-01-11 05:34:00,621 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:00" (1/1) ... [2022-01-11 05:34:00,769 INFO L137 Inliner]: procedures = 93, calls = 334, calls flagged for inlining = 187, calls inlined = 300, statements flattened = 9013 [2022-01-11 05:34:00,769 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 05:34:00,770 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 05:34:00,770 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 05:34:00,771 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 05:34:00,778 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:00" (1/1) ... [2022-01-11 05:34:00,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:00" (1/1) ... [2022-01-11 05:34:00,800 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:00" (1/1) ... [2022-01-11 05:34:00,801 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:00" (1/1) ... [2022-01-11 05:34:00,866 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:00" (1/1) ... [2022-01-11 05:34:00,912 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:00" (1/1) ... [2022-01-11 05:34:00,929 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:00" (1/1) ... [2022-01-11 05:34:00,961 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 05:34:00,963 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 05:34:00,963 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 05:34:00,964 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 05:34:00,967 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:00" (1/1) ... [2022-01-11 05:34:00,972 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:34:00,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:34:00,989 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 05:34:00,995 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 05:34:01,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 05:34:01,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 05:34:01,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 05:34:01,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 05:34:01,201 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 05:34:01,203 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 05:34:05,158 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 05:34:05,194 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 05:34:05,194 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 05:34:05,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:34:05 BoogieIcfgContainer [2022-01-11 05:34:05,200 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 05:34:05,201 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 05:34:05,201 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 05:34:05,202 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 05:34:05,205 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:34:05" (1/1) ... [2022-01-11 05:34:05,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:34:05 BasicIcfg [2022-01-11 05:34:05,858 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 05:34:05,859 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 05:34:05,859 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 05:34:05,862 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 05:34:05,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:33:59" (1/4) ... [2022-01-11 05:34:05,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74e6d6f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:34:05, skipping insertion in model container [2022-01-11 05:34:05,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:00" (2/4) ... [2022-01-11 05:34:05,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74e6d6f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:34:05, skipping insertion in model container [2022-01-11 05:34:05,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:34:05" (3/4) ... [2022-01-11 05:34:05,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74e6d6f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:34:05, skipping insertion in model container [2022-01-11 05:34:05,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:34:05" (4/4) ... [2022-01-11 05:34:05,864 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product25.cil.cTransformedIcfg [2022-01-11 05:34:05,868 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 05:34:05,868 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-01-11 05:34:05,916 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 05:34:05,923 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 05:34:05,923 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-11 05:34:05,969 INFO L276 IsEmpty]: Start isEmpty. Operand has 2584 states, 2578 states have (on average 1.865399534522886) internal successors, (4809), 2583 states have internal predecessors, (4809), 0 states have call successors, (0), 0 states 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 05:34:05,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-01-11 05:34:05,982 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:34:05,983 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] [2022-01-11 05:34:05,984 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 05:34:05,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:34:05,988 INFO L85 PathProgramCache]: Analyzing trace with hash 111260042, now seen corresponding path program 1 times [2022-01-11 05:34:05,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:34:05,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893308464] [2022-01-11 05:34:05,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:34:05,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:34:06,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:34:06,344 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 05:34:06,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:34:06,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893308464] [2022-01-11 05:34:06,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893308464] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:34:06,345 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:34:06,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:34:06,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414519452] [2022-01-11 05:34:06,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:34:06,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:34:06,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:34:06,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:34:06,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:34:06,416 INFO L87 Difference]: Start difference. First operand has 2584 states, 2578 states have (on average 1.865399534522886) internal successors, (4809), 2583 states have internal predecessors, (4809), 0 states have call successors, (0), 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 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states 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 05:34:06,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:34:06,617 INFO L93 Difference]: Finished difference Result 5153 states and 9595 transitions. [2022-01-11 05:34:06,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:34:06,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2022-01-11 05:34:06,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:34:06,644 INFO L225 Difference]: With dead ends: 5153 [2022-01-11 05:34:06,645 INFO L226 Difference]: Without dead ends: 2573 [2022-01-11 05:34:06,653 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 05:34:06,655 INFO L933 BasicCegarLoop]: 4788 mSDtfsCounter, 4783 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4783 SdHoareTripleChecker+Valid, 4799 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:34:06,656 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4783 Valid, 4799 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:34:06,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2573 states. [2022-01-11 05:34:06,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2573 to 2573. [2022-01-11 05:34:06,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2573 states, 2568 states have (on average 1.8633177570093458) internal successors, (4785), 2572 states have internal predecessors, (4785), 0 states have call successors, (0), 0 states 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 05:34:06,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2573 states to 2573 states and 4785 transitions. [2022-01-11 05:34:06,799 INFO L78 Accepts]: Start accepts. Automaton has 2573 states and 4785 transitions. Word has length 45 [2022-01-11 05:34:06,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:34:06,800 INFO L470 AbstractCegarLoop]: Abstraction has 2573 states and 4785 transitions. [2022-01-11 05:34:06,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states 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 05:34:06,800 INFO L276 IsEmpty]: Start isEmpty. Operand 2573 states and 4785 transitions. [2022-01-11 05:34:06,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-11 05:34:06,805 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:34:06,805 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] [2022-01-11 05:34:06,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 05:34:06,806 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 05:34:06,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:34:06,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1324454341, now seen corresponding path program 1 times [2022-01-11 05:34:06,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:34:06,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080334081] [2022-01-11 05:34:06,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:34:06,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:34:06,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:34:06,925 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 05:34:06,925 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:34:06,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080334081] [2022-01-11 05:34:06,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080334081] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:34:06,926 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:34:06,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:34:06,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681400496] [2022-01-11 05:34:06,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:34:06,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:34:06,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:34:06,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:34:06,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:34:06,934 INFO L87 Difference]: Start difference. First operand 2573 states and 4785 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states 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 05:34:07,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:34:07,065 INFO L93 Difference]: Finished difference Result 5096 states and 9484 transitions. [2022-01-11 05:34:07,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:34:07,065 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2022-01-11 05:34:07,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:34:07,076 INFO L225 Difference]: With dead ends: 5096 [2022-01-11 05:34:07,076 INFO L226 Difference]: Without dead ends: 2573 [2022-01-11 05:34:07,080 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 05:34:07,081 INFO L933 BasicCegarLoop]: 4725 mSDtfsCounter, 4743 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4743 SdHoareTripleChecker+Valid, 4740 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:34:07,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4743 Valid, 4740 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:34:07,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2573 states. [2022-01-11 05:34:07,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2573 to 2573. [2022-01-11 05:34:07,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2573 states, 2568 states have (on average 1.853582554517134) internal successors, (4760), 2572 states have internal predecessors, (4760), 0 states have call successors, (0), 0 states 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 05:34:07,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2573 states to 2573 states and 4760 transitions. [2022-01-11 05:34:07,267 INFO L78 Accepts]: Start accepts. Automaton has 2573 states and 4760 transitions. Word has length 52 [2022-01-11 05:34:07,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:34:07,268 INFO L470 AbstractCegarLoop]: Abstraction has 2573 states and 4760 transitions. [2022-01-11 05:34:07,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states 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 05:34:07,268 INFO L276 IsEmpty]: Start isEmpty. Operand 2573 states and 4760 transitions. [2022-01-11 05:34:07,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-11 05:34:07,271 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:34:07,271 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] [2022-01-11 05:34:07,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 05:34:07,271 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 05:34:07,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:34:07,272 INFO L85 PathProgramCache]: Analyzing trace with hash 965994340, now seen corresponding path program 1 times [2022-01-11 05:34:07,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:34:07,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061667031] [2022-01-11 05:34:07,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:34:07,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:34:07,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:34:07,386 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 05:34:07,387 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:34:07,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061667031] [2022-01-11 05:34:07,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061667031] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:34:07,388 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:34:07,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:34:07,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978917975] [2022-01-11 05:34:07,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:34:07,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:34:07,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:34:07,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:34:07,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:34:07,389 INFO L87 Difference]: Start difference. First operand 2573 states and 4760 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states 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 05:34:07,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:34:07,587 INFO L93 Difference]: Finished difference Result 5795 states and 10765 transitions. [2022-01-11 05:34:07,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:34:07,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2022-01-11 05:34:07,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:34:07,607 INFO L225 Difference]: With dead ends: 5795 [2022-01-11 05:34:07,607 INFO L226 Difference]: Without dead ends: 4485 [2022-01-11 05:34:07,614 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 05:34:07,618 INFO L933 BasicCegarLoop]: 5225 mSDtfsCounter, 4700 mSDsluCounter, 3566 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4700 SdHoareTripleChecker+Valid, 8791 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:34:07,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4700 Valid, 8791 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:34:07,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4485 states. [2022-01-11 05:34:07,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4485 to 4485. [2022-01-11 05:34:07,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4485 states, 4480 states have (on average 1.8604910714285714) internal successors, (8335), 4484 states have internal predecessors, (8335), 0 states have call successors, (0), 0 states 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 05:34:07,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4485 states to 4485 states and 8335 transitions. [2022-01-11 05:34:07,823 INFO L78 Accepts]: Start accepts. Automaton has 4485 states and 8335 transitions. Word has length 55 [2022-01-11 05:34:07,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:34:07,823 INFO L470 AbstractCegarLoop]: Abstraction has 4485 states and 8335 transitions. [2022-01-11 05:34:07,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states 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 05:34:07,824 INFO L276 IsEmpty]: Start isEmpty. Operand 4485 states and 8335 transitions. [2022-01-11 05:34:07,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-01-11 05:34:07,826 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:34:07,826 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] [2022-01-11 05:34:07,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 05:34:07,827 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:34:07,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:34:07,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1082522612, now seen corresponding path program 1 times [2022-01-11 05:34:07,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:34:07,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708177330] [2022-01-11 05:34:07,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:34:07,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:34:07,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:34:07,894 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 05:34:07,895 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:34:07,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708177330] [2022-01-11 05:34:07,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708177330] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:34:07,895 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:34:07,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:34:07,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027828699] [2022-01-11 05:34:07,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:34:07,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:34:07,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:34:07,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:34:07,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:34:07,897 INFO L87 Difference]: Start difference. First operand 4485 states and 8335 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states 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 05:34:08,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:34:08,080 INFO L93 Difference]: Finished difference Result 10788 states and 20088 transitions. [2022-01-11 05:34:08,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:34:08,081 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2022-01-11 05:34:08,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:34:08,118 INFO L225 Difference]: With dead ends: 10788 [2022-01-11 05:34:08,118 INFO L226 Difference]: Without dead ends: 8192 [2022-01-11 05:34:08,125 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:34:08,130 INFO L933 BasicCegarLoop]: 4757 mSDtfsCounter, 4699 mSDsluCounter, 3569 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4699 SdHoareTripleChecker+Valid, 8326 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:34:08,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4699 Valid, 8326 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:34:08,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8192 states. [2022-01-11 05:34:08,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8192 to 8190. [2022-01-11 05:34:08,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8190 states, 8185 states have (on average 1.8642638973732437) internal successors, (15259), 8189 states have internal predecessors, (15259), 0 states have call successors, (0), 0 states 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 05:34:08,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8190 states to 8190 states and 15259 transitions. [2022-01-11 05:34:08,490 INFO L78 Accepts]: Start accepts. Automaton has 8190 states and 15259 transitions. Word has length 57 [2022-01-11 05:34:08,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:34:08,491 INFO L470 AbstractCegarLoop]: Abstraction has 8190 states and 15259 transitions. [2022-01-11 05:34:08,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states 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 05:34:08,492 INFO L276 IsEmpty]: Start isEmpty. Operand 8190 states and 15259 transitions. [2022-01-11 05:34:08,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-11 05:34:08,495 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:34:08,496 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 05:34:08,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 05:34:08,496 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:34:08,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:34:08,497 INFO L85 PathProgramCache]: Analyzing trace with hash 393312298, now seen corresponding path program 1 times [2022-01-11 05:34:08,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:34:08,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640929327] [2022-01-11 05:34:08,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:34:08,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:34:08,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:34:08,578 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 05:34:08,579 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:34:08,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640929327] [2022-01-11 05:34:08,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640929327] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:34:08,579 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:34:08,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:34:08,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238992134] [2022-01-11 05:34:08,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:34:08,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:34:08,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:34:08,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:34:08,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:34:08,581 INFO L87 Difference]: Start difference. First operand 8190 states and 15259 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 05:34:08,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:34:08,924 INFO L93 Difference]: Finished difference Result 20524 states and 38263 transitions. [2022-01-11 05:34:08,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:34:08,925 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 05:34:08,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:34:08,994 INFO L225 Difference]: With dead ends: 20524 [2022-01-11 05:34:08,994 INFO L226 Difference]: Without dead ends: 15365 [2022-01-11 05:34:09,009 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 05:34:09,009 INFO L933 BasicCegarLoop]: 4757 mSDtfsCounter, 4687 mSDsluCounter, 3572 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4687 SdHoareTripleChecker+Valid, 8329 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:34:09,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4687 Valid, 8329 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:34:09,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15365 states. [2022-01-11 05:34:09,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15365 to 15361. [2022-01-11 05:34:09,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15361 states, 15356 states have (on average 1.8659156030216202) internal successors, (28653), 15360 states have internal predecessors, (28653), 0 states have call successors, (0), 0 states 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 05:34:09,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15361 states to 15361 states and 28653 transitions. [2022-01-11 05:34:09,461 INFO L78 Accepts]: Start accepts. Automaton has 15361 states and 28653 transitions. Word has length 58 [2022-01-11 05:34:09,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:34:09,467 INFO L470 AbstractCegarLoop]: Abstraction has 15361 states and 28653 transitions. [2022-01-11 05:34:09,467 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 05:34:09,467 INFO L276 IsEmpty]: Start isEmpty. Operand 15361 states and 28653 transitions. [2022-01-11 05:34:09,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-11 05:34:09,470 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:34:09,470 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:34:09,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 05:34:09,471 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:34:09,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:34:09,471 INFO L85 PathProgramCache]: Analyzing trace with hash -692205912, now seen corresponding path program 1 times [2022-01-11 05:34:09,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:34:09,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473531101] [2022-01-11 05:34:09,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:34:09,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:34:09,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:34:09,547 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 05:34:09,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:34:09,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473531101] [2022-01-11 05:34:09,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473531101] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:34:09,547 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:34:09,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:34:09,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967029316] [2022-01-11 05:34:09,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:34:09,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:34:09,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:34:09,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:34:09,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:34:09,549 INFO L87 Difference]: Start difference. First operand 15361 states and 28653 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:34:10,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:34:10,031 INFO L93 Difference]: Finished difference Result 39496 states and 73668 transitions. [2022-01-11 05:34:10,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:34:10,032 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2022-01-11 05:34:10,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:34:10,116 INFO L225 Difference]: With dead ends: 39496 [2022-01-11 05:34:10,116 INFO L226 Difference]: Without dead ends: 29230 [2022-01-11 05:34:10,141 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 05:34:10,142 INFO L933 BasicCegarLoop]: 4757 mSDtfsCounter, 4686 mSDsluCounter, 3575 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4686 SdHoareTripleChecker+Valid, 8332 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:34:10,142 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4686 Valid, 8332 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:34:10,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29230 states. [2022-01-11 05:34:10,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29230 to 29224. [2022-01-11 05:34:10,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29224 states, 29219 states have (on average 1.866285636058729) internal successors, (54531), 29223 states have internal predecessors, (54531), 0 states have call successors, (0), 0 states 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 05:34:10,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29224 states to 29224 states and 54531 transitions. [2022-01-11 05:34:10,844 INFO L78 Accepts]: Start accepts. Automaton has 29224 states and 54531 transitions. Word has length 59 [2022-01-11 05:34:10,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:34:10,844 INFO L470 AbstractCegarLoop]: Abstraction has 29224 states and 54531 transitions. [2022-01-11 05:34:10,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:34:10,844 INFO L276 IsEmpty]: Start isEmpty. Operand 29224 states and 54531 transitions. [2022-01-11 05:34:10,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-11 05:34:10,847 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:34:10,847 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 05:34:10,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 05:34:10,848 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:34:10,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:34:10,849 INFO L85 PathProgramCache]: Analyzing trace with hash 16467999, now seen corresponding path program 1 times [2022-01-11 05:34:10,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:34:10,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003268313] [2022-01-11 05:34:10,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:34:10,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:34:10,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:34:10,939 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 05:34:10,939 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:34:10,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003268313] [2022-01-11 05:34:10,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003268313] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:34:10,940 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:34:10,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:34:10,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903286890] [2022-01-11 05:34:10,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:34:10,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:34:10,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:34:10,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:34:10,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:34:10,942 INFO L87 Difference]: Start difference. First operand 29224 states and 54531 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 05:34:11,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:34:11,921 INFO L93 Difference]: Finished difference Result 76440 states and 142584 transitions. [2022-01-11 05:34:11,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:34:11,922 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 05:34:11,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:34:12,063 INFO L225 Difference]: With dead ends: 76440 [2022-01-11 05:34:12,063 INFO L226 Difference]: Without dead ends: 55992 [2022-01-11 05:34:12,101 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 05:34:12,103 INFO L933 BasicCegarLoop]: 4758 mSDtfsCounter, 4685 mSDsluCounter, 3578 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4685 SdHoareTripleChecker+Valid, 8336 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:34:12,103 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4685 Valid, 8336 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:34:12,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55992 states. [2022-01-11 05:34:13,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55992 to 55984. [2022-01-11 05:34:13,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55984 states, 55979 states have (on average 1.8658961396237874) internal successors, (104451), 55983 states have internal predecessors, (104451), 0 states have call successors, (0), 0 states 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 05:34:13,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55984 states to 55984 states and 104451 transitions. [2022-01-11 05:34:13,322 INFO L78 Accepts]: Start accepts. Automaton has 55984 states and 104451 transitions. Word has length 60 [2022-01-11 05:34:13,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:34:13,322 INFO L470 AbstractCegarLoop]: Abstraction has 55984 states and 104451 transitions. [2022-01-11 05:34:13,323 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 05:34:13,323 INFO L276 IsEmpty]: Start isEmpty. Operand 55984 states and 104451 transitions. [2022-01-11 05:34:13,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-01-11 05:34:13,345 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:34:13,345 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:34:13,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 05:34:13,346 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 05:34:13,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:34:13,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1753433768, now seen corresponding path program 1 times [2022-01-11 05:34:13,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:34:13,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509677291] [2022-01-11 05:34:13,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:34:13,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:34:13,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:34:13,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:34:13,617 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:34:13,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509677291] [2022-01-11 05:34:13,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509677291] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:34:13,618 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:34:13,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:34:13,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87224376] [2022-01-11 05:34:13,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:34:13,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:34:13,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:34:13,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:34:13,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:34:13,619 INFO L87 Difference]: Start difference. First operand 55984 states and 104451 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:34:15,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:34:15,323 INFO L93 Difference]: Finished difference Result 114327 states and 213253 transitions. [2022-01-11 05:34:15,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:34:15,324 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2022-01-11 05:34:15,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:34:15,456 INFO L225 Difference]: With dead ends: 114327 [2022-01-11 05:34:15,457 INFO L226 Difference]: Without dead ends: 59340 [2022-01-11 05:34:15,525 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 05:34:15,526 INFO L933 BasicCegarLoop]: 5391 mSDtfsCounter, 3674 mSDsluCounter, 2331 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3674 SdHoareTripleChecker+Valid, 7722 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-11 05:34:15,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3674 Valid, 7722 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-11 05:34:15,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59340 states. [2022-01-11 05:34:16,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59340 to 55984. [2022-01-11 05:34:16,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55984 states, 55979 states have (on average 1.8416906339877455) internal successors, (103096), 55983 states have internal predecessors, (103096), 0 states have call successors, (0), 0 states 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 05:34:16,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55984 states to 55984 states and 103096 transitions. [2022-01-11 05:34:16,827 INFO L78 Accepts]: Start accepts. Automaton has 55984 states and 103096 transitions. Word has length 105 [2022-01-11 05:34:16,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:34:16,836 INFO L470 AbstractCegarLoop]: Abstraction has 55984 states and 103096 transitions. [2022-01-11 05:34:16,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:34:16,837 INFO L276 IsEmpty]: Start isEmpty. Operand 55984 states and 103096 transitions. [2022-01-11 05:34:16,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 05:34:16,864 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:34:16,864 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:34:16,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 05:34:16,864 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 05:34:16,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:34:16,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1046370878, now seen corresponding path program 1 times [2022-01-11 05:34:16,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:34:16,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563065656] [2022-01-11 05:34:16,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:34:16,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:34:16,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:34:16,933 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 05:34:16,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:34:16,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563065656] [2022-01-11 05:34:16,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563065656] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:34:16,934 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:34:16,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:34:16,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704602277] [2022-01-11 05:34:16,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:34:16,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:34:16,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:34:16,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:34:16,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:34:16,935 INFO L87 Difference]: Start difference. First operand 55984 states and 103096 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states 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 05:34:18,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:34:18,493 INFO L93 Difference]: Finished difference Result 116278 states and 214252 transitions. [2022-01-11 05:34:18,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:34:18,493 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 05:34:18,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:34:18,646 INFO L225 Difference]: With dead ends: 116278 [2022-01-11 05:34:18,646 INFO L226 Difference]: Without dead ends: 62577 [2022-01-11 05:34:18,707 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 05:34:18,707 INFO L933 BasicCegarLoop]: 5897 mSDtfsCounter, 3399 mSDsluCounter, 2649 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3399 SdHoareTripleChecker+Valid, 8546 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-11 05:34:18,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3399 Valid, 8546 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-11 05:34:18,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62577 states. [2022-01-11 05:34:19,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62577 to 55984. [2022-01-11 05:34:19,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55984 states, 55979 states have (on average 1.8208792582932884) internal successors, (101931), 55983 states have internal predecessors, (101931), 0 states have call successors, (0), 0 states 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 05:34:19,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55984 states to 55984 states and 101931 transitions. [2022-01-11 05:34:19,891 INFO L78 Accepts]: Start accepts. Automaton has 55984 states and 101931 transitions. Word has length 110 [2022-01-11 05:34:19,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:34:19,891 INFO L470 AbstractCegarLoop]: Abstraction has 55984 states and 101931 transitions. [2022-01-11 05:34:19,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states 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 05:34:19,892 INFO L276 IsEmpty]: Start isEmpty. Operand 55984 states and 101931 transitions. [2022-01-11 05:34:19,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-11 05:34:19,907 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:34:19,907 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:34:19,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 05:34:19,907 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 05:34:19,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:34:19,907 INFO L85 PathProgramCache]: Analyzing trace with hash -483521619, now seen corresponding path program 1 times [2022-01-11 05:34:19,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:34:19,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952794201] [2022-01-11 05:34:19,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:34:19,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:34:19,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:34:19,968 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 05:34:19,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:34:19,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952794201] [2022-01-11 05:34:19,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952794201] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:34:19,968 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:34:19,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:34:19,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507403929] [2022-01-11 05:34:19,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:34:19,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:34:19,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:34:19,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:34:19,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:34:19,969 INFO L87 Difference]: Start difference. First operand 55984 states and 101931 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:34:21,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:34:21,623 INFO L93 Difference]: Finished difference Result 117902 states and 215184 transitions. [2022-01-11 05:34:21,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:34:21,623 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-01-11 05:34:21,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:34:21,803 INFO L225 Difference]: With dead ends: 117902 [2022-01-11 05:34:21,803 INFO L226 Difference]: Without dead ends: 66647 [2022-01-11 05:34:21,830 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 05:34:21,830 INFO L933 BasicCegarLoop]: 6295 mSDtfsCounter, 3246 mSDsluCounter, 2967 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3246 SdHoareTripleChecker+Valid, 9262 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-11 05:34:21,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3246 Valid, 9262 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-11 05:34:21,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66647 states. [2022-01-11 05:34:22,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66647 to 55984. [2022-01-11 05:34:22,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55984 states, 55979 states have (on average 1.8043552046303077) internal successors, (101006), 55983 states have internal predecessors, (101006), 0 states have call successors, (0), 0 states 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 05:34:23,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55984 states to 55984 states and 101006 transitions. [2022-01-11 05:34:23,089 INFO L78 Accepts]: Start accepts. Automaton has 55984 states and 101006 transitions. Word has length 114 [2022-01-11 05:34:23,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:34:23,089 INFO L470 AbstractCegarLoop]: Abstraction has 55984 states and 101006 transitions. [2022-01-11 05:34:23,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:34:23,089 INFO L276 IsEmpty]: Start isEmpty. Operand 55984 states and 101006 transitions. [2022-01-11 05:34:23,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-11 05:34:23,107 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:34:23,107 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:34:23,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 05:34:23,107 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 05:34:23,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:34:23,108 INFO L85 PathProgramCache]: Analyzing trace with hash -829622945, now seen corresponding path program 1 times [2022-01-11 05:34:23,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:34:23,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507004069] [2022-01-11 05:34:23,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:34:23,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:34:23,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:34:23,178 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 05:34:23,178 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:34:23,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507004069] [2022-01-11 05:34:23,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507004069] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:34:23,178 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:34:23,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:34:23,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799843663] [2022-01-11 05:34:23,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:34:23,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:34:23,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:34:23,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:34:23,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:34:23,180 INFO L87 Difference]: Start difference. First operand 55984 states and 101006 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 05:34:24,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:34:24,749 INFO L93 Difference]: Finished difference Result 119346 states and 216496 transitions. [2022-01-11 05:34:24,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:34:24,749 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2022-01-11 05:34:24,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:34:24,864 INFO L225 Difference]: With dead ends: 119346 [2022-01-11 05:34:24,865 INFO L226 Difference]: Without dead ends: 71402 [2022-01-11 05:34:24,901 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 05:34:24,902 INFO L933 BasicCegarLoop]: 6683 mSDtfsCounter, 3113 mSDsluCounter, 3285 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3113 SdHoareTripleChecker+Valid, 9968 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-11 05:34:24,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3113 Valid, 9968 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-11 05:34:24,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71402 states. [2022-01-11 05:34:26,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71402 to 55984. [2022-01-11 05:34:26,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55984 states, 55979 states have (on average 1.793011665088694) internal successors, (100371), 55983 states have internal predecessors, (100371), 0 states have call successors, (0), 0 states 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 05:34:26,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55984 states to 55984 states and 100371 transitions. [2022-01-11 05:34:26,302 INFO L78 Accepts]: Start accepts. Automaton has 55984 states and 100371 transitions. Word has length 117 [2022-01-11 05:34:26,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:34:26,302 INFO L470 AbstractCegarLoop]: Abstraction has 55984 states and 100371 transitions. [2022-01-11 05:34:26,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 05:34:26,302 INFO L276 IsEmpty]: Start isEmpty. Operand 55984 states and 100371 transitions. [2022-01-11 05:34:26,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-01-11 05:34:26,318 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:34:26,318 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:34:26,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 05:34:26,319 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 05:34:26,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:34:26,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1390831023, now seen corresponding path program 1 times [2022-01-11 05:34:26,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:34:26,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201944868] [2022-01-11 05:34:26,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:34:26,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:34:26,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:34:26,396 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 05:34:26,397 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:34:26,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201944868] [2022-01-11 05:34:26,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201944868] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:34:26,397 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:34:26,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:34:26,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279186659] [2022-01-11 05:34:26,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:34:26,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:34:26,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:34:26,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:34:26,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:34:26,399 INFO L87 Difference]: Start difference. First operand 55984 states and 100371 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states 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 05:34:28,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:34:28,163 INFO L93 Difference]: Finished difference Result 120754 states and 218517 transitions. [2022-01-11 05:34:28,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:34:28,164 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2022-01-11 05:34:28,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:34:28,425 INFO L225 Difference]: With dead ends: 120754 [2022-01-11 05:34:28,426 INFO L226 Difference]: Without dead ends: 76465 [2022-01-11 05:34:28,456 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 05:34:28,456 INFO L933 BasicCegarLoop]: 7061 mSDtfsCounter, 3000 mSDsluCounter, 3603 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3000 SdHoareTripleChecker+Valid, 10664 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-11 05:34:28,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3000 Valid, 10664 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-11 05:34:28,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76465 states. [2022-01-11 05:34:29,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76465 to 55984. [2022-01-11 05:34:29,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55984 states, 55979 states have (on average 1.7872952357133924) internal successors, (100051), 55983 states have internal predecessors, (100051), 0 states have call successors, (0), 0 states 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 05:34:29,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55984 states to 55984 states and 100051 transitions. [2022-01-11 05:34:29,701 INFO L78 Accepts]: Start accepts. Automaton has 55984 states and 100051 transitions. Word has length 119 [2022-01-11 05:34:29,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:34:29,701 INFO L470 AbstractCegarLoop]: Abstraction has 55984 states and 100051 transitions. [2022-01-11 05:34:29,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states 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 05:34:29,701 INFO L276 IsEmpty]: Start isEmpty. Operand 55984 states and 100051 transitions. [2022-01-11 05:34:29,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-01-11 05:34:29,717 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:34:29,718 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:34:29,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 05:34:29,718 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:34:29,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:34:29,719 INFO L85 PathProgramCache]: Analyzing trace with hash -99944620, now seen corresponding path program 1 times [2022-01-11 05:34:29,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:34:29,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327192413] [2022-01-11 05:34:29,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:34:29,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:34:29,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:34:29,819 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 05:34:29,819 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:34:29,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327192413] [2022-01-11 05:34:29,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327192413] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:34:29,819 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:34:29,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:34:29,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989634862] [2022-01-11 05:34:29,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:34:29,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:34:29,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:34:29,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:34:29,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:34:29,820 INFO L87 Difference]: Start difference. First operand 55984 states and 100051 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 0 states have call successors, (0), 0 states 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 05:34:32,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:34:32,318 INFO L93 Difference]: Finished difference Result 167852 states and 300031 transitions. [2022-01-11 05:34:32,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:34:32,318 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2022-01-11 05:34:32,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:34:32,538 INFO L225 Difference]: With dead ends: 167852 [2022-01-11 05:34:32,538 INFO L226 Difference]: Without dead ends: 111897 [2022-01-11 05:34:32,588 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 05:34:32,588 INFO L933 BasicCegarLoop]: 9125 mSDtfsCounter, 13690 mSDsluCounter, 4582 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13690 SdHoareTripleChecker+Valid, 13707 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:34:32,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13690 Valid, 13707 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:34:32,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111897 states. [2022-01-11 05:34:34,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111897 to 55963. [2022-01-11 05:34:34,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55963 states, 55958 states have (on average 1.7874655991993995) internal successors, (100023), 55962 states have internal predecessors, (100023), 0 states have call successors, (0), 0 states 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 05:34:34,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55963 states to 55963 states and 100023 transitions. [2022-01-11 05:34:34,312 INFO L78 Accepts]: Start accepts. Automaton has 55963 states and 100023 transitions. Word has length 119 [2022-01-11 05:34:34,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:34:34,312 INFO L470 AbstractCegarLoop]: Abstraction has 55963 states and 100023 transitions. [2022-01-11 05:34:34,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 0 states have call successors, (0), 0 states 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 05:34:34,312 INFO L276 IsEmpty]: Start isEmpty. Operand 55963 states and 100023 transitions. [2022-01-11 05:34:34,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 05:34:34,490 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:34:34,490 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:34:34,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 05:34:34,491 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:34:34,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:34:34,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1407644269, now seen corresponding path program 1 times [2022-01-11 05:34:34,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:34:34,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169550599] [2022-01-11 05:34:34,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:34:34,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:34:34,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:34:34,593 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 05:34:34,594 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:34:34,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169550599] [2022-01-11 05:34:34,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169550599] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:34:34,594 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:34:34,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:34:34,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033255521] [2022-01-11 05:34:34,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:34:34,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:34:34,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:34:34,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:34:34,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:34:34,596 INFO L87 Difference]: Start difference. First operand 55963 states and 100023 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 0 states have call successors, (0), 0 states 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 05:34:37,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:34:37,783 INFO L93 Difference]: Finished difference Result 223780 states and 400011 transitions. [2022-01-11 05:34:37,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:34:37,784 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 05:34:37,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:34:38,247 INFO L225 Difference]: With dead ends: 223780 [2022-01-11 05:34:38,247 INFO L226 Difference]: Without dead ends: 167840 [2022-01-11 05:34:38,316 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 05:34:38,317 INFO L933 BasicCegarLoop]: 9127 mSDtfsCounter, 13674 mSDsluCounter, 13695 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13674 SdHoareTripleChecker+Valid, 22822 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:34:38,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13674 Valid, 22822 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:34:38,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167840 states. [2022-01-11 05:34:40,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167840 to 55965. [2022-01-11 05:34:40,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55965 states, 55960 states have (on average 1.7874374553252323) internal successors, (100025), 55964 states have internal predecessors, (100025), 0 states have call successors, (0), 0 states 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 05:34:40,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55965 states to 55965 states and 100025 transitions. [2022-01-11 05:34:40,560 INFO L78 Accepts]: Start accepts. Automaton has 55965 states and 100025 transitions. Word has length 121 [2022-01-11 05:34:40,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:34:40,560 INFO L470 AbstractCegarLoop]: Abstraction has 55965 states and 100025 transitions. [2022-01-11 05:34:40,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 0 states have call successors, (0), 0 states 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 05:34:40,560 INFO L276 IsEmpty]: Start isEmpty. Operand 55965 states and 100025 transitions. [2022-01-11 05:34:40,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 05:34:40,575 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:34:40,576 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:34:40,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 05:34:40,576 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:34:40,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:34:40,576 INFO L85 PathProgramCache]: Analyzing trace with hash 421061580, now seen corresponding path program 1 times [2022-01-11 05:34:40,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:34:40,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926896906] [2022-01-11 05:34:40,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:34:40,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:34:40,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:34:40,671 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 05:34:40,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:34:40,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926896906] [2022-01-11 05:34:40,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926896906] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:34:40,672 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:34:40,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:34:40,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595788478] [2022-01-11 05:34:40,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:34:40,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:34:40,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:34:40,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:34:40,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:34:40,673 INFO L87 Difference]: Start difference. First operand 55965 states and 100025 transitions. Second operand has 8 states, 8 states have (on average 15.125) internal successors, (121), 8 states have internal predecessors, (121), 0 states have call successors, (0), 0 states 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 05:34:42,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:34:42,128 INFO L93 Difference]: Finished difference Result 111906 states and 200023 transitions. [2022-01-11 05:34:42,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:34:42,128 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.125) internal successors, (121), 8 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 05:34:42,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:34:42,228 INFO L225 Difference]: With dead ends: 111906 [2022-01-11 05:34:42,228 INFO L226 Difference]: Without dead ends: 55957 [2022-01-11 05:34:42,260 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 05:34:42,261 INFO L933 BasicCegarLoop]: 4567 mSDtfsCounter, 13694 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13694 SdHoareTripleChecker+Valid, 4574 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:34:42,261 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13694 Valid, 4574 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:34:42,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55957 states. [2022-01-11 05:34:43,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55957 to 55957. [2022-01-11 05:34:43,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55957 states, 55952 states have (on average 1.7874964255075778) internal successors, (100014), 55956 states have internal predecessors, (100014), 0 states have call successors, (0), 0 states 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 05:34:43,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55957 states to 55957 states and 100014 transitions. [2022-01-11 05:34:43,949 INFO L78 Accepts]: Start accepts. Automaton has 55957 states and 100014 transitions. Word has length 121 [2022-01-11 05:34:43,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:34:43,950 INFO L470 AbstractCegarLoop]: Abstraction has 55957 states and 100014 transitions. [2022-01-11 05:34:43,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.125) internal successors, (121), 8 states have internal predecessors, (121), 0 states have call successors, (0), 0 states 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 05:34:43,950 INFO L276 IsEmpty]: Start isEmpty. Operand 55957 states and 100014 transitions. [2022-01-11 05:34:43,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-01-11 05:34:43,968 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:34:43,968 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:34:43,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 05:34:43,968 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:34:43,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:34:43,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1321176110, now seen corresponding path program 1 times [2022-01-11 05:34:43,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:34:43,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162677055] [2022-01-11 05:34:43,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:34:43,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:34:44,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:34:44,039 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 05:34:44,040 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:34:44,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162677055] [2022-01-11 05:34:44,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162677055] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:34:44,042 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:34:44,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:34:44,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74961981] [2022-01-11 05:34:44,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:34:44,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:34:44,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:34:44,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:34:44,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:34:44,043 INFO L87 Difference]: Start difference. First operand 55957 states and 100014 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states 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 05:34:45,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:34:45,557 INFO L93 Difference]: Finished difference Result 111885 states and 199993 transitions. [2022-01-11 05:34:45,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:34:45,558 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 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 122 [2022-01-11 05:34:45,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:34:45,650 INFO L225 Difference]: With dead ends: 111885 [2022-01-11 05:34:45,650 INFO L226 Difference]: Without dead ends: 55957 [2022-01-11 05:34:45,683 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:34:45,684 INFO L933 BasicCegarLoop]: 4560 mSDtfsCounter, 13653 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13653 SdHoareTripleChecker+Valid, 4596 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:34:45,684 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13653 Valid, 4596 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:34:45,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55957 states. [2022-01-11 05:34:47,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55957 to 55957. [2022-01-11 05:34:47,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55957 states, 55952 states have (on average 1.7874785530454675) internal successors, (100013), 55956 states have internal predecessors, (100013), 0 states have call successors, (0), 0 states 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 05:34:47,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55957 states to 55957 states and 100013 transitions. [2022-01-11 05:34:47,325 INFO L78 Accepts]: Start accepts. Automaton has 55957 states and 100013 transitions. Word has length 122 [2022-01-11 05:34:47,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:34:47,325 INFO L470 AbstractCegarLoop]: Abstraction has 55957 states and 100013 transitions. [2022-01-11 05:34:47,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states 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 05:34:47,325 INFO L276 IsEmpty]: Start isEmpty. Operand 55957 states and 100013 transitions. [2022-01-11 05:34:47,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-01-11 05:34:47,340 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:34:47,340 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:34:47,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-11 05:34:47,340 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:34:47,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:34:47,341 INFO L85 PathProgramCache]: Analyzing trace with hash 41102471, now seen corresponding path program 1 times [2022-01-11 05:34:47,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:34:47,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680906880] [2022-01-11 05:34:47,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:34:47,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:34:47,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:34:47,418 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 05:34:47,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:34:47,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680906880] [2022-01-11 05:34:47,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680906880] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:34:47,419 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:34:47,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:34:47,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537502675] [2022-01-11 05:34:47,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:34:47,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:34:47,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:34:47,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:34:47,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:34:47,420 INFO L87 Difference]: Start difference. First operand 55957 states and 100013 transitions. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 0 states have call successors, (0), 0 states 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 05:34:52,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:34:52,640 INFO L93 Difference]: Finished difference Result 225988 states and 402738 transitions. [2022-01-11 05:34:52,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:34:52,641 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 0 states have call successors, (0), 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 123 [2022-01-11 05:34:52,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:34:53,077 INFO L225 Difference]: With dead ends: 225988 [2022-01-11 05:34:53,078 INFO L226 Difference]: Without dead ends: 170077 [2022-01-11 05:34:53,132 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:34:53,133 INFO L933 BasicCegarLoop]: 8869 mSDtfsCounter, 17820 mSDsluCounter, 13328 mSDsCounter, 0 mSdLazyCounter, 838 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17820 SdHoareTripleChecker+Valid, 22197 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-11 05:34:53,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17820 Valid, 22197 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 838 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-11 05:34:53,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170077 states.