/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec1_product11.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 05:31:53,181 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 05:31:53,183 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 05:31:53,232 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 05:31:53,233 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 05:31:53,248 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 05:31:53,250 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 05:31:53,252 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 05:31:53,254 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 05:31:53,260 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 05:31:53,261 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 05:31:53,262 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 05:31:53,262 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 05:31:53,263 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 05:31:53,264 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 05:31:53,265 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 05:31:53,265 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 05:31:53,266 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 05:31:53,267 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 05:31:53,269 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 05:31:53,270 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 05:31:53,275 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 05:31:53,278 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 05:31:53,280 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 05:31:53,289 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 05:31:53,289 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 05:31:53,290 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 05:31:53,291 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 05:31:53,291 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 05:31:53,292 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 05:31:53,293 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 05:31:53,293 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 05:31:53,295 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 05:31:53,295 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 05:31:53,296 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 05:31:53,297 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 05:31:53,297 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 05:31:53,297 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 05:31:53,297 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 05:31:53,298 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 05:31:53,299 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 05:31:53,300 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 05:31:53,334 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 05:31:53,334 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 05:31:53,335 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 05:31:53,335 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 05:31:53,336 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 05:31:53,336 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 05:31:53,336 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 05:31:53,336 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 05:31:53,336 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 05:31:53,336 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 05:31:53,337 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 05:31:53,337 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 05:31:53,337 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 05:31:53,337 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 05:31:53,337 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 05:31:53,337 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 05:31:53,337 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 05:31:53,337 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 05:31:53,337 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 05:31:53,338 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 05:31:53,338 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 05:31:53,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:31:53,338 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 05:31:53,338 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 05:31:53,338 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 05:31:53,338 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 05:31:53,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 05:31:53,339 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 05:31:53,339 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 05:31:53,341 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 05:31:53,341 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 05:31:53,341 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 05:31:53,343 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 05:31:53,343 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 05:31:53,590 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 05:31:53,616 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 05:31:53,619 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 05:31:53,620 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 05:31:53,621 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 05:31:53,622 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec1_product11.cil.c [2022-01-11 05:31:53,680 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/151709f6a/2623105ca00e42dda24ca3adfb1deeb8/FLAGd80248036 [2022-01-11 05:31:54,214 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 05:31:54,214 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product11.cil.c [2022-01-11 05:31:54,247 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/151709f6a/2623105ca00e42dda24ca3adfb1deeb8/FLAGd80248036 [2022-01-11 05:31:54,663 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/151709f6a/2623105ca00e42dda24ca3adfb1deeb8 [2022-01-11 05:31:54,665 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 05:31:54,667 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 05:31:54,670 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 05:31:54,670 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 05:31:54,673 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 05:31:54,674 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:31:54" (1/1) ... [2022-01-11 05:31:54,675 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a91c6fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:31:54, skipping insertion in model container [2022-01-11 05:31:54,675 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:31:54" (1/1) ... [2022-01-11 05:31:54,681 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 05:31:54,752 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:31:55,186 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product11.cil.c[40826,40839] [2022-01-11 05:31:55,307 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:31:55,322 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 05:31:55,336 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:31:55,394 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product11.cil.c[40826,40839] [2022-01-11 05:31:55,428 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:31:55,436 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 05:31:55,491 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product11.cil.c[40826,40839] [2022-01-11 05:31:55,518 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:31:55,544 INFO L208 MainTranslator]: Completed translation [2022-01-11 05:31:55,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:31:55 WrapperNode [2022-01-11 05:31:55,545 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 05:31:55,546 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 05:31:55,546 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 05:31:55,546 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 05:31:55,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:31:55" (1/1) ... [2022-01-11 05:31:55,592 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:31:55" (1/1) ... [2022-01-11 05:31:55,741 INFO L137 Inliner]: procedures = 95, calls = 339, calls flagged for inlining = 192, calls inlined = 276, statements flattened = 8603 [2022-01-11 05:31:55,742 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 05:31:55,743 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 05:31:55,743 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 05:31:55,743 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 05:31:55,750 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:31:55" (1/1) ... [2022-01-11 05:31:55,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:31:55" (1/1) ... [2022-01-11 05:31:55,776 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:31:55" (1/1) ... [2022-01-11 05:31:55,777 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:31:55" (1/1) ... [2022-01-11 05:31:55,842 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:31:55" (1/1) ... [2022-01-11 05:31:55,896 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:31:55" (1/1) ... [2022-01-11 05:31:55,916 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:31:55" (1/1) ... [2022-01-11 05:31:55,944 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 05:31:55,945 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 05:31:55,946 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 05:31:55,947 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 05:31:55,948 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:31:55" (1/1) ... [2022-01-11 05:31:55,954 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:31:55,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:31:55,981 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 05:31:55,989 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 05:31:56,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 05:31:56,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 05:31:56,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 05:31:56,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 05:31:56,210 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 05:31:56,211 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 05:32:00,026 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 05:32:00,051 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 05:32:00,052 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 05:32:00,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:32:00 BoogieIcfgContainer [2022-01-11 05:32:00,058 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 05:32:00,058 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 05:32:00,058 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 05:32:00,060 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 05:32:00,062 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:32:00" (1/1) ... [2022-01-11 05:32:00,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:32:00 BasicIcfg [2022-01-11 05:32:00,758 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 05:32:00,759 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 05:32:00,759 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 05:32:00,762 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 05:32:00,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:31:54" (1/4) ... [2022-01-11 05:32:00,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a0a3345 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:32:00, skipping insertion in model container [2022-01-11 05:32:00,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:31:55" (2/4) ... [2022-01-11 05:32:00,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a0a3345 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:32:00, skipping insertion in model container [2022-01-11 05:32:00,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:32:00" (3/4) ... [2022-01-11 05:32:00,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a0a3345 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:32:00, skipping insertion in model container [2022-01-11 05:32:00,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:32:00" (4/4) ... [2022-01-11 05:32:00,767 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product11.cil.cTransformedIcfg [2022-01-11 05:32:00,771 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 05:32:00,771 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-01-11 05:32:00,814 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 05:32:00,819 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 05:32:00,819 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-11 05:32:00,862 INFO L276 IsEmpty]: Start isEmpty. Operand has 2475 states, 2469 states have (on average 1.8687727825030376) internal successors, (4614), 2474 states have internal predecessors, (4614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:00,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-11 05:32:00,877 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:00,878 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:00,879 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 05:32:00,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:00,883 INFO L85 PathProgramCache]: Analyzing trace with hash -907861502, now seen corresponding path program 1 times [2022-01-11 05:32:00,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:00,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723987852] [2022-01-11 05:32:00,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:00,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:01,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:01,178 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 05:32:01,178 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:01,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723987852] [2022-01-11 05:32:01,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723987852] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:01,179 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:01,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:32:01,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144955583] [2022-01-11 05:32:01,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:01,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:32:01,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:01,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:32:01,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:01,254 INFO L87 Difference]: Start difference. First operand has 2475 states, 2469 states have (on average 1.8687727825030376) internal successors, (4614), 2474 states have internal predecessors, (4614), 0 states have call successors, (0), 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 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:01,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:01,568 INFO L93 Difference]: Finished difference Result 7330 states and 13682 transitions. [2022-01-11 05:32:01,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:32:01,571 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-01-11 05:32:01,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:01,614 INFO L225 Difference]: With dead ends: 7330 [2022-01-11 05:32:01,614 INFO L226 Difference]: Without dead ends: 4857 [2022-01-11 05:32:01,628 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 05:32:01,633 INFO L933 BasicCegarLoop]: 9063 mSDtfsCounter, 4575 mSDsluCounter, 4481 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4575 SdHoareTripleChecker+Valid, 13544 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:01,636 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4575 Valid, 13544 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:32:01,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4857 states. [2022-01-11 05:32:01,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4857 to 2464. [2022-01-11 05:32:01,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2464 states, 2459 states have (on average 1.8666124440829606) internal successors, (4590), 2463 states have internal predecessors, (4590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:01,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2464 states to 2464 states and 4590 transitions. [2022-01-11 05:32:01,775 INFO L78 Accepts]: Start accepts. Automaton has 2464 states and 4590 transitions. Word has length 64 [2022-01-11 05:32:01,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:01,776 INFO L470 AbstractCegarLoop]: Abstraction has 2464 states and 4590 transitions. [2022-01-11 05:32:01,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:01,776 INFO L276 IsEmpty]: Start isEmpty. Operand 2464 states and 4590 transitions. [2022-01-11 05:32:01,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-01-11 05:32:01,781 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:01,781 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:01,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 05:32:01,781 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 05:32:01,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:01,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1550514612, now seen corresponding path program 1 times [2022-01-11 05:32:01,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:01,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689392376] [2022-01-11 05:32:01,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:01,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:01,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:01,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:01,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:01,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689392376] [2022-01-11 05:32:01,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689392376] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:01,983 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:01,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:32:01,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126876074] [2022-01-11 05:32:01,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:01,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:32:01,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:01,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:32:01,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:01,991 INFO L87 Difference]: Start difference. First operand 2464 states and 4590 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:02,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:02,300 INFO L93 Difference]: Finished difference Result 7235 states and 13490 transitions. [2022-01-11 05:32:02,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:32:02,301 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-01-11 05:32:02,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:02,323 INFO L225 Difference]: With dead ends: 7235 [2022-01-11 05:32:02,323 INFO L226 Difference]: Without dead ends: 4821 [2022-01-11 05:32:02,329 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 05:32:02,330 INFO L933 BasicCegarLoop]: 8926 mSDtfsCounter, 4477 mSDsluCounter, 4421 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4477 SdHoareTripleChecker+Valid, 13347 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:02,331 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4477 Valid, 13347 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:32:02,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4821 states. [2022-01-11 05:32:02,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4821 to 2464. [2022-01-11 05:32:02,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2464 states, 2459 states have (on average 1.8564457096380642) internal successors, (4565), 2463 states have internal predecessors, (4565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:02,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2464 states to 2464 states and 4565 transitions. [2022-01-11 05:32:02,400 INFO L78 Accepts]: Start accepts. Automaton has 2464 states and 4565 transitions. Word has length 71 [2022-01-11 05:32:02,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:02,401 INFO L470 AbstractCegarLoop]: Abstraction has 2464 states and 4565 transitions. [2022-01-11 05:32:02,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:02,401 INFO L276 IsEmpty]: Start isEmpty. Operand 2464 states and 4565 transitions. [2022-01-11 05:32:02,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-01-11 05:32:02,404 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:02,404 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:02,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 05:32:02,405 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 05:32:02,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:02,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1577274261, now seen corresponding path program 1 times [2022-01-11 05:32:02,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:02,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120326537] [2022-01-11 05:32:02,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:02,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:02,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:02,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:02,473 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:02,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120326537] [2022-01-11 05:32:02,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120326537] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:02,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:02,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:32:02,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879902391] [2022-01-11 05:32:02,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:02,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:32:02,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:02,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:32:02,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:02,475 INFO L87 Difference]: Start difference. First operand 2464 states and 4565 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:02,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:02,562 INFO L93 Difference]: Finished difference Result 4857 states and 9032 transitions. [2022-01-11 05:32:02,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:32:02,563 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-01-11 05:32:02,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:02,574 INFO L225 Difference]: With dead ends: 4857 [2022-01-11 05:32:02,574 INFO L226 Difference]: Without dead ends: 2464 [2022-01-11 05:32:02,581 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 05:32:02,585 INFO L933 BasicCegarLoop]: 4546 mSDtfsCounter, 4554 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4554 SdHoareTripleChecker+Valid, 4553 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:02,587 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4554 Valid, 4553 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:32:02,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2464 states. [2022-01-11 05:32:02,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2464 to 2464. [2022-01-11 05:32:02,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2464 states, 2459 states have (on average 1.8556323708824725) internal successors, (4563), 2463 states have internal predecessors, (4563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:02,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2464 states to 2464 states and 4563 transitions. [2022-01-11 05:32:02,663 INFO L78 Accepts]: Start accepts. Automaton has 2464 states and 4563 transitions. Word has length 74 [2022-01-11 05:32:02,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:02,663 INFO L470 AbstractCegarLoop]: Abstraction has 2464 states and 4563 transitions. [2022-01-11 05:32:02,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:02,663 INFO L276 IsEmpty]: Start isEmpty. Operand 2464 states and 4563 transitions. [2022-01-11 05:32:02,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-01-11 05:32:02,670 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:02,671 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] [2022-01-11 05:32:02,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 05:32:02,671 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:02,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:02,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1993619781, now seen corresponding path program 1 times [2022-01-11 05:32:02,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:02,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458711144] [2022-01-11 05:32:02,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:02,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:02,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:02,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:02,791 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:02,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458711144] [2022-01-11 05:32:02,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458711144] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:02,792 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:02,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:32:02,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077228062] [2022-01-11 05:32:02,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:02,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:32:02,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:02,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:32:02,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:02,794 INFO L87 Difference]: Start difference. First operand 2464 states and 4563 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:03,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:03,010 INFO L93 Difference]: Finished difference Result 4821 states and 8959 transitions. [2022-01-11 05:32:03,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:32:03,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2022-01-11 05:32:03,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:03,023 INFO L225 Difference]: With dead ends: 4821 [2022-01-11 05:32:03,023 INFO L226 Difference]: Without dead ends: 2464 [2022-01-11 05:32:03,028 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 05:32:03,034 INFO L933 BasicCegarLoop]: 4468 mSDtfsCounter, 4535 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4535 SdHoareTripleChecker+Valid, 4483 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:03,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4535 Valid, 4483 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:32:03,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2464 states. [2022-01-11 05:32:03,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2464 to 2464. [2022-01-11 05:32:03,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2464 states, 2459 states have (on average 1.8515656771045141) internal successors, (4553), 2463 states have internal predecessors, (4553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:03,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2464 states to 2464 states and 4553 transitions. [2022-01-11 05:32:03,117 INFO L78 Accepts]: Start accepts. Automaton has 2464 states and 4553 transitions. Word has length 76 [2022-01-11 05:32:03,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:03,118 INFO L470 AbstractCegarLoop]: Abstraction has 2464 states and 4553 transitions. [2022-01-11 05:32:03,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:03,118 INFO L276 IsEmpty]: Start isEmpty. Operand 2464 states and 4553 transitions. [2022-01-11 05:32:03,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-11 05:32:03,121 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:03,121 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] [2022-01-11 05:32:03,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 05:32:03,122 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:03,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:03,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1644786767, now seen corresponding path program 1 times [2022-01-11 05:32:03,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:03,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939654821] [2022-01-11 05:32:03,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:03,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:03,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:03,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:03,245 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:03,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939654821] [2022-01-11 05:32:03,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939654821] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:03,246 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:03,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:32:03,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460551410] [2022-01-11 05:32:03,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:03,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:32:03,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:03,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:32:03,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:32:03,247 INFO L87 Difference]: Start difference. First operand 2464 states and 4553 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:03,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:03,734 INFO L93 Difference]: Finished difference Result 8768 states and 16204 transitions. [2022-01-11 05:32:03,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:32:03,735 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2022-01-11 05:32:03,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:03,768 INFO L225 Difference]: With dead ends: 8768 [2022-01-11 05:32:03,769 INFO L226 Difference]: Without dead ends: 7562 [2022-01-11 05:32:03,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:32:03,774 INFO L933 BasicCegarLoop]: 8991 mSDtfsCounter, 9589 mSDsluCounter, 22709 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9589 SdHoareTripleChecker+Valid, 31700 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:03,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9589 Valid, 31700 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:32:03,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7562 states. [2022-01-11 05:32:03,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7562 to 3194. [2022-01-11 05:32:03,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3194 states, 3189 states have (on average 1.8466603951081844) internal successors, (5889), 3193 states have internal predecessors, (5889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:03,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3194 states to 3194 states and 5889 transitions. [2022-01-11 05:32:03,958 INFO L78 Accepts]: Start accepts. Automaton has 3194 states and 5889 transitions. Word has length 78 [2022-01-11 05:32:03,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:03,963 INFO L470 AbstractCegarLoop]: Abstraction has 3194 states and 5889 transitions. [2022-01-11 05:32:03,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:03,964 INFO L276 IsEmpty]: Start isEmpty. Operand 3194 states and 5889 transitions. [2022-01-11 05:32:03,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-11 05:32:03,969 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:03,969 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] [2022-01-11 05:32:03,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 05:32:03,969 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:03,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:03,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1899523312, now seen corresponding path program 1 times [2022-01-11 05:32:03,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:03,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095224527] [2022-01-11 05:32:03,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:03,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:04,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:04,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:04,049 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:04,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095224527] [2022-01-11 05:32:04,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095224527] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:04,049 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:04,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 05:32:04,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913345673] [2022-01-11 05:32:04,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:04,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:32:04,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:04,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:32:04,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:04,051 INFO L87 Difference]: Start difference. First operand 3194 states and 5889 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 2 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:04,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:04,159 INFO L93 Difference]: Finished difference Result 4555 states and 8381 transitions. [2022-01-11 05:32:04,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:32:04,160 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 2 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2022-01-11 05:32:04,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:04,167 INFO L225 Difference]: With dead ends: 4555 [2022-01-11 05:32:04,167 INFO L226 Difference]: Without dead ends: 2621 [2022-01-11 05:32:04,171 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:04,172 INFO L933 BasicCegarLoop]: 4793 mSDtfsCounter, 3399 mSDsluCounter, 1340 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3399 SdHoareTripleChecker+Valid, 6133 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:04,172 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3399 Valid, 6133 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:32:04,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2621 states. [2022-01-11 05:32:04,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2621 to 2604. [2022-01-11 05:32:04,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2604 states, 2599 states have (on average 1.8426317814544055) internal successors, (4789), 2603 states have internal predecessors, (4789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:04,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2604 states to 2604 states and 4789 transitions. [2022-01-11 05:32:04,248 INFO L78 Accepts]: Start accepts. Automaton has 2604 states and 4789 transitions. Word has length 78 [2022-01-11 05:32:04,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:04,248 INFO L470 AbstractCegarLoop]: Abstraction has 2604 states and 4789 transitions. [2022-01-11 05:32:04,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 2 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:04,248 INFO L276 IsEmpty]: Start isEmpty. Operand 2604 states and 4789 transitions. [2022-01-11 05:32:04,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-01-11 05:32:04,251 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:04,251 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:04,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 05:32:04,251 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:04,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:04,251 INFO L85 PathProgramCache]: Analyzing trace with hash -885198506, now seen corresponding path program 1 times [2022-01-11 05:32:04,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:04,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240214548] [2022-01-11 05:32:04,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:04,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:04,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:04,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:04,315 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:04,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240214548] [2022-01-11 05:32:04,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240214548] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:04,316 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:04,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:32:04,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904991496] [2022-01-11 05:32:04,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:04,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:32:04,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:04,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:32:04,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:04,317 INFO L87 Difference]: Start difference. First operand 2604 states and 4789 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:04,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:04,467 INFO L93 Difference]: Finished difference Result 6485 states and 11973 transitions. [2022-01-11 05:32:04,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:32:04,468 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-01-11 05:32:04,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:04,482 INFO L225 Difference]: With dead ends: 6485 [2022-01-11 05:32:04,482 INFO L226 Difference]: Without dead ends: 5133 [2022-01-11 05:32:04,486 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 05:32:04,487 INFO L933 BasicCegarLoop]: 4549 mSDtfsCounter, 4478 mSDsluCounter, 4463 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4478 SdHoareTripleChecker+Valid, 9012 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:04,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4478 Valid, 9012 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:32:04,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5133 states. [2022-01-11 05:32:04,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5133 to 5131. [2022-01-11 05:32:04,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5126 states have (on average 1.8492001560671087) internal successors, (9479), 5130 states have internal predecessors, (9479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:04,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 9479 transitions. [2022-01-11 05:32:04,644 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 9479 transitions. Word has length 79 [2022-01-11 05:32:04,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:04,645 INFO L470 AbstractCegarLoop]: Abstraction has 5131 states and 9479 transitions. [2022-01-11 05:32:04,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:04,645 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 9479 transitions. [2022-01-11 05:32:04,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-01-11 05:32:04,650 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:04,650 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:04,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 05:32:04,651 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 05:32:04,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:04,651 INFO L85 PathProgramCache]: Analyzing trace with hash -568305230, now seen corresponding path program 1 times [2022-01-11 05:32:04,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:04,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455534839] [2022-01-11 05:32:04,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:04,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:04,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:04,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:04,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:04,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455534839] [2022-01-11 05:32:04,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455534839] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:04,774 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:04,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:32:04,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316077451] [2022-01-11 05:32:04,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:04,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:32:04,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:04,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:32:04,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:32:04,775 INFO L87 Difference]: Start difference. First operand 5131 states and 9479 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:05,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:05,624 INFO L93 Difference]: Finished difference Result 30174 states and 55958 transitions. [2022-01-11 05:32:05,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-11 05:32:05,625 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-01-11 05:32:05,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:05,698 INFO L225 Difference]: With dead ends: 30174 [2022-01-11 05:32:05,699 INFO L226 Difference]: Without dead ends: 25072 [2022-01-11 05:32:05,712 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 05:32:05,713 INFO L933 BasicCegarLoop]: 17755 mSDtfsCounter, 13357 mSDsluCounter, 22203 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13357 SdHoareTripleChecker+Valid, 39958 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:05,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13357 Valid, 39958 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:32:05,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25072 states. [2022-01-11 05:32:06,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25072 to 5116. [2022-01-11 05:32:06,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5116 states, 5111 states have (on average 1.8507141459596947) internal successors, (9459), 5115 states have internal predecessors, (9459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:06,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5116 states to 5116 states and 9459 transitions. [2022-01-11 05:32:06,073 INFO L78 Accepts]: Start accepts. Automaton has 5116 states and 9459 transitions. Word has length 79 [2022-01-11 05:32:06,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:06,074 INFO L470 AbstractCegarLoop]: Abstraction has 5116 states and 9459 transitions. [2022-01-11 05:32:06,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:06,074 INFO L276 IsEmpty]: Start isEmpty. Operand 5116 states and 9459 transitions. [2022-01-11 05:32:06,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-11 05:32:06,078 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:06,079 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:06,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 05:32:06,079 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 05:32:06,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:06,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1818536904, now seen corresponding path program 1 times [2022-01-11 05:32:06,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:06,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930490188] [2022-01-11 05:32:06,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:06,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:06,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:06,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:06,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:06,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930490188] [2022-01-11 05:32:06,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930490188] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:06,197 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:06,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:32:06,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127321745] [2022-01-11 05:32:06,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:06,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:32:06,198 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:06,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:32:06,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:32:06,203 INFO L87 Difference]: Start difference. First operand 5116 states and 9459 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:07,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:07,319 INFO L93 Difference]: Finished difference Result 25122 states and 46596 transitions. [2022-01-11 05:32:07,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:32:07,320 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-11 05:32:07,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:07,376 INFO L225 Difference]: With dead ends: 25122 [2022-01-11 05:32:07,376 INFO L226 Difference]: Without dead ends: 20035 [2022-01-11 05:32:07,387 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 05:32:07,388 INFO L933 BasicCegarLoop]: 17645 mSDtfsCounter, 26670 mSDsluCounter, 17615 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26670 SdHoareTripleChecker+Valid, 35260 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:07,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26670 Valid, 35260 Invalid, 135 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [26 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:32:07,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20035 states. [2022-01-11 05:32:07,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20035 to 5116. [2022-01-11 05:32:07,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5116 states, 5111 states have (on average 1.8483662688319311) internal successors, (9447), 5115 states have internal predecessors, (9447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:07,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5116 states to 5116 states and 9447 transitions. [2022-01-11 05:32:07,700 INFO L78 Accepts]: Start accepts. Automaton has 5116 states and 9447 transitions. Word has length 81 [2022-01-11 05:32:07,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:07,700 INFO L470 AbstractCegarLoop]: Abstraction has 5116 states and 9447 transitions. [2022-01-11 05:32:07,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:07,701 INFO L276 IsEmpty]: Start isEmpty. Operand 5116 states and 9447 transitions. [2022-01-11 05:32:07,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-11 05:32:07,705 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:07,705 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:07,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 05:32:07,706 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 05:32:07,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:07,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1717624937, now seen corresponding path program 1 times [2022-01-11 05:32:07,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:07,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671543658] [2022-01-11 05:32:07,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:07,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:07,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:07,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:07,768 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:07,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671543658] [2022-01-11 05:32:07,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671543658] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:07,768 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:07,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:32:07,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136638077] [2022-01-11 05:32:07,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:07,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:32:07,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:07,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:32:07,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:32:07,770 INFO L87 Difference]: Start difference. First operand 5116 states and 9447 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:08,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:08,410 INFO L93 Difference]: Finished difference Result 20248 states and 37483 transitions. [2022-01-11 05:32:08,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:32:08,411 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-11 05:32:08,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:08,452 INFO L225 Difference]: With dead ends: 20248 [2022-01-11 05:32:08,452 INFO L226 Difference]: Without dead ends: 15155 [2022-01-11 05:32:08,464 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 05:32:08,465 INFO L933 BasicCegarLoop]: 4537 mSDtfsCounter, 13394 mSDsluCounter, 13350 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13394 SdHoareTripleChecker+Valid, 17887 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:08,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13394 Valid, 17887 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:32:08,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15155 states. [2022-01-11 05:32:08,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15155 to 5122. [2022-01-11 05:32:08,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5122 states, 5117 states have (on average 1.8469806527262067) internal successors, (9451), 5121 states have internal predecessors, (9451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:08,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5122 states to 5122 states and 9451 transitions. [2022-01-11 05:32:08,773 INFO L78 Accepts]: Start accepts. Automaton has 5122 states and 9451 transitions. Word has length 81 [2022-01-11 05:32:08,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:08,774 INFO L470 AbstractCegarLoop]: Abstraction has 5122 states and 9451 transitions. [2022-01-11 05:32:08,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:08,774 INFO L276 IsEmpty]: Start isEmpty. Operand 5122 states and 9451 transitions. [2022-01-11 05:32:08,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-01-11 05:32:08,778 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:08,778 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] [2022-01-11 05:32:08,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 05:32:08,779 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 05:32:08,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:08,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1398893753, now seen corresponding path program 1 times [2022-01-11 05:32:08,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:08,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540180368] [2022-01-11 05:32:08,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:08,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:08,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:08,894 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 05:32:08,894 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:08,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540180368] [2022-01-11 05:32:08,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540180368] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:08,894 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:08,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:32:08,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206538747] [2022-01-11 05:32:08,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:08,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:32:08,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:08,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:32:08,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:32:08,896 INFO L87 Difference]: Start difference. First operand 5122 states and 9451 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:09,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:09,809 INFO L93 Difference]: Finished difference Result 25183 states and 46649 transitions. [2022-01-11 05:32:09,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:32:09,810 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2022-01-11 05:32:09,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:09,868 INFO L225 Difference]: With dead ends: 25183 [2022-01-11 05:32:09,868 INFO L226 Difference]: Without dead ends: 20077 [2022-01-11 05:32:09,882 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 05:32:09,883 INFO L933 BasicCegarLoop]: 17714 mSDtfsCounter, 26648 mSDsluCounter, 17720 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26648 SdHoareTripleChecker+Valid, 35434 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:09,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26648 Valid, 35434 Invalid, 36 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:32:09,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20077 states. [2022-01-11 05:32:10,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20077 to 5114. [2022-01-11 05:32:10,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5114 states, 5109 states have (on average 1.8475239772949696) internal successors, (9439), 5113 states have internal predecessors, (9439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:10,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5114 states to 5114 states and 9439 transitions. [2022-01-11 05:32:10,227 INFO L78 Accepts]: Start accepts. Automaton has 5114 states and 9439 transitions. Word has length 82 [2022-01-11 05:32:10,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:10,228 INFO L470 AbstractCegarLoop]: Abstraction has 5114 states and 9439 transitions. [2022-01-11 05:32:10,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:10,228 INFO L276 IsEmpty]: Start isEmpty. Operand 5114 states and 9439 transitions. [2022-01-11 05:32:10,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-11 05:32:10,233 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:10,233 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] [2022-01-11 05:32:10,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 05:32:10,233 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 05:32:10,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:10,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1678933983, now seen corresponding path program 1 times [2022-01-11 05:32:10,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:10,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666208735] [2022-01-11 05:32:10,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:10,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:10,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:10,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:10,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:10,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666208735] [2022-01-11 05:32:10,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666208735] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:10,305 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:10,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:32:10,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104565248] [2022-01-11 05:32:10,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:10,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:32:10,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:10,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:32:10,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:32:10,307 INFO L87 Difference]: Start difference. First operand 5114 states and 9439 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:10,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:10,913 INFO L93 Difference]: Finished difference Result 20109 states and 37252 transitions. [2022-01-11 05:32:10,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:32:10,913 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2022-01-11 05:32:10,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:10,952 INFO L225 Difference]: With dead ends: 20109 [2022-01-11 05:32:10,952 INFO L226 Difference]: Without dead ends: 15036 [2022-01-11 05:32:10,969 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:32:10,971 INFO L933 BasicCegarLoop]: 4475 mSDtfsCounter, 22213 mSDsluCounter, 13187 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22213 SdHoareTripleChecker+Valid, 17662 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:10,971 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22213 Valid, 17662 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:32:10,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15036 states. [2022-01-11 05:32:11,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15036 to 5130. [2022-01-11 05:32:11,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5130 states, 5125 states have (on average 1.846439024390244) internal successors, (9463), 5129 states have internal predecessors, (9463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:11,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5130 states to 5130 states and 9463 transitions. [2022-01-11 05:32:11,396 INFO L78 Accepts]: Start accepts. Automaton has 5130 states and 9463 transitions. Word has length 83 [2022-01-11 05:32:11,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:11,396 INFO L470 AbstractCegarLoop]: Abstraction has 5130 states and 9463 transitions. [2022-01-11 05:32:11,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:11,396 INFO L276 IsEmpty]: Start isEmpty. Operand 5130 states and 9463 transitions. [2022-01-11 05:32:11,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-01-11 05:32:11,401 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:11,401 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] [2022-01-11 05:32:11,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 05:32:11,402 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 05:32:11,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:11,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1072723855, now seen corresponding path program 1 times [2022-01-11 05:32:11,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:11,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721953766] [2022-01-11 05:32:11,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:11,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:11,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:11,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:11,484 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:11,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721953766] [2022-01-11 05:32:11,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721953766] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:11,484 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:11,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:32:11,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698389206] [2022-01-11 05:32:11,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:11,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:32:11,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:11,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:32:11,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:32:11,485 INFO L87 Difference]: Start difference. First operand 5130 states and 9463 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:12,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:12,077 INFO L93 Difference]: Finished difference Result 15120 states and 27990 transitions. [2022-01-11 05:32:12,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:32:12,077 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2022-01-11 05:32:12,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:12,094 INFO L225 Difference]: With dead ends: 15120 [2022-01-11 05:32:12,094 INFO L226 Difference]: Without dead ends: 10083 [2022-01-11 05:32:12,101 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:32:12,102 INFO L933 BasicCegarLoop]: 4468 mSDtfsCounter, 13233 mSDsluCounter, 4466 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13233 SdHoareTripleChecker+Valid, 8934 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:12,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13233 Valid, 8934 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:32:12,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10083 states. [2022-01-11 05:32:12,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10083 to 5134. [2022-01-11 05:32:12,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5134 states, 5129 states have (on average 1.8451939949307856) internal successors, (9464), 5133 states have internal predecessors, (9464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:12,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5134 states to 5134 states and 9464 transitions. [2022-01-11 05:32:12,432 INFO L78 Accepts]: Start accepts. Automaton has 5134 states and 9464 transitions. Word has length 85 [2022-01-11 05:32:12,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:12,432 INFO L470 AbstractCegarLoop]: Abstraction has 5134 states and 9464 transitions. [2022-01-11 05:32:12,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:12,432 INFO L276 IsEmpty]: Start isEmpty. Operand 5134 states and 9464 transitions. [2022-01-11 05:32:12,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-11 05:32:12,437 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:12,437 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] [2022-01-11 05:32:12,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 05:32:12,437 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 05:32:12,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:12,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1831995240, now seen corresponding path program 1 times [2022-01-11 05:32:12,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:12,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492847154] [2022-01-11 05:32:12,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:12,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:12,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:12,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:12,550 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:12,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492847154] [2022-01-11 05:32:12,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492847154] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:12,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:12,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:32:12,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204567685] [2022-01-11 05:32:12,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:12,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:32:12,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:12,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:32:12,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:32:12,552 INFO L87 Difference]: Start difference. First operand 5134 states and 9464 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:12,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:12,861 INFO L93 Difference]: Finished difference Result 10119 states and 18715 transitions. [2022-01-11 05:32:12,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:32:12,861 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-01-11 05:32:12,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:12,870 INFO L225 Difference]: With dead ends: 10119 [2022-01-11 05:32:12,871 INFO L226 Difference]: Without dead ends: 5086 [2022-01-11 05:32:12,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:32:12,879 INFO L933 BasicCegarLoop]: 4485 mSDtfsCounter, 8884 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8884 SdHoareTripleChecker+Valid, 4523 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 05:32:12,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8884 Valid, 4523 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:32:12,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5086 states. [2022-01-11 05:32:13,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5086 to 5086. [2022-01-11 05:32:13,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5086 states, 5081 states have (on average 1.84806140523519) internal successors, (9390), 5085 states have internal predecessors, (9390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:13,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5086 states to 5086 states and 9390 transitions. [2022-01-11 05:32:13,326 INFO L78 Accepts]: Start accepts. Automaton has 5086 states and 9390 transitions. Word has length 86 [2022-01-11 05:32:13,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:13,327 INFO L470 AbstractCegarLoop]: Abstraction has 5086 states and 9390 transitions. [2022-01-11 05:32:13,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:13,327 INFO L276 IsEmpty]: Start isEmpty. Operand 5086 states and 9390 transitions. [2022-01-11 05:32:13,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-01-11 05:32:13,331 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:13,331 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:13,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 05:32:13,332 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 05:32:13,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:13,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1480547975, now seen corresponding path program 1 times [2022-01-11 05:32:13,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:13,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235899463] [2022-01-11 05:32:13,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:13,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:13,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:13,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:13,441 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:13,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235899463] [2022-01-11 05:32:13,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235899463] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:13,442 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:13,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:32:13,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496370178] [2022-01-11 05:32:13,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:13,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:32:13,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:13,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:32:13,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:13,443 INFO L87 Difference]: Start difference. First operand 5086 states and 9390 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:13,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:13,816 INFO L93 Difference]: Finished difference Result 7767 states and 14344 transitions. [2022-01-11 05:32:13,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:32:13,816 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-01-11 05:32:13,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:13,826 INFO L225 Difference]: With dead ends: 7767 [2022-01-11 05:32:13,826 INFO L226 Difference]: Without dead ends: 5068 [2022-01-11 05:32:13,833 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 05:32:13,835 INFO L933 BasicCegarLoop]: 4475 mSDtfsCounter, 4398 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4398 SdHoareTripleChecker+Valid, 4475 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:13,835 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4398 Valid, 4475 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:32:13,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5068 states. [2022-01-11 05:32:14,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5068 to 5068. [2022-01-11 05:32:14,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5068 states, 5064 states have (on average 1.8481437598736177) internal successors, (9359), 5067 states have internal predecessors, (9359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:14,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5068 states to 5068 states and 9359 transitions. [2022-01-11 05:32:14,099 INFO L78 Accepts]: Start accepts. Automaton has 5068 states and 9359 transitions. Word has length 87 [2022-01-11 05:32:14,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:14,099 INFO L470 AbstractCegarLoop]: Abstraction has 5068 states and 9359 transitions. [2022-01-11 05:32:14,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:14,100 INFO L276 IsEmpty]: Start isEmpty. Operand 5068 states and 9359 transitions. [2022-01-11 05:32:14,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-11 05:32:14,104 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:14,104 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] [2022-01-11 05:32:14,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 05:32:14,105 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:14,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:14,105 INFO L85 PathProgramCache]: Analyzing trace with hash -113881767, now seen corresponding path program 1 times [2022-01-11 05:32:14,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:14,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727792165] [2022-01-11 05:32:14,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:14,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:14,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:14,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:14,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:14,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727792165] [2022-01-11 05:32:14,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727792165] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:14,182 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:14,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:32:14,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433998917] [2022-01-11 05:32:14,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:14,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:32:14,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:14,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:32:14,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:32:14,183 INFO L87 Difference]: Start difference. First operand 5068 states and 9359 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:14,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:14,474 INFO L93 Difference]: Finished difference Result 10023 states and 18561 transitions. [2022-01-11 05:32:14,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:32:14,474 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2022-01-11 05:32:14,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:14,482 INFO L225 Difference]: With dead ends: 10023 [2022-01-11 05:32:14,482 INFO L226 Difference]: Without dead ends: 5056 [2022-01-11 05:32:14,490 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 05:32:14,490 INFO L933 BasicCegarLoop]: 4458 mSDtfsCounter, 8836 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8836 SdHoareTripleChecker+Valid, 4547 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:14,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8836 Valid, 4547 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:32:14,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5056 states. [2022-01-11 05:32:14,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5056 to 5056. [2022-01-11 05:32:14,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5056 states, 5052 states have (on average 1.8485748218527316) internal successors, (9339), 5055 states have internal predecessors, (9339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:14,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5056 states to 5056 states and 9339 transitions. [2022-01-11 05:32:14,820 INFO L78 Accepts]: Start accepts. Automaton has 5056 states and 9339 transitions. Word has length 88 [2022-01-11 05:32:14,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:14,820 INFO L470 AbstractCegarLoop]: Abstraction has 5056 states and 9339 transitions. [2022-01-11 05:32:14,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:14,820 INFO L276 IsEmpty]: Start isEmpty. Operand 5056 states and 9339 transitions. [2022-01-11 05:32:14,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-11 05:32:14,824 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:14,824 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] [2022-01-11 05:32:14,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-11 05:32:14,825 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:14,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:14,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1295676299, now seen corresponding path program 1 times [2022-01-11 05:32:14,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:14,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610212989] [2022-01-11 05:32:14,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:14,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:14,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:14,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:14,917 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:14,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610212989] [2022-01-11 05:32:14,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610212989] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:14,918 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:14,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 05:32:14,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472961949] [2022-01-11 05:32:14,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:14,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:32:14,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:14,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:32:14,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:32:14,919 INFO L87 Difference]: Start difference. First operand 5056 states and 9339 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:15,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:15,252 INFO L93 Difference]: Finished difference Result 10049 states and 18587 transitions. [2022-01-11 05:32:15,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 05:32:15,252 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2022-01-11 05:32:15,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:15,260 INFO L225 Difference]: With dead ends: 10049 [2022-01-11 05:32:15,260 INFO L226 Difference]: Without dead ends: 5118 [2022-01-11 05:32:15,266 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:32:15,267 INFO L933 BasicCegarLoop]: 4481 mSDtfsCounter, 17731 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17731 SdHoareTripleChecker+Valid, 4597 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:15,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17731 Valid, 4597 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:32:15,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5118 states. [2022-01-11 05:32:15,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5118 to 5056. [2022-01-11 05:32:15,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5056 states, 5052 states have (on average 1.848178939034046) internal successors, (9337), 5055 states have internal predecessors, (9337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:15,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5056 states to 5056 states and 9337 transitions. [2022-01-11 05:32:15,666 INFO L78 Accepts]: Start accepts. Automaton has 5056 states and 9337 transitions. Word has length 88 [2022-01-11 05:32:15,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:15,667 INFO L470 AbstractCegarLoop]: Abstraction has 5056 states and 9337 transitions. [2022-01-11 05:32:15,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:15,667 INFO L276 IsEmpty]: Start isEmpty. Operand 5056 states and 9337 transitions. [2022-01-11 05:32:15,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-01-11 05:32:15,671 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:15,671 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] [2022-01-11 05:32:15,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-11 05:32:15,671 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:15,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:15,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1633630106, now seen corresponding path program 1 times [2022-01-11 05:32:15,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:15,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835037660] [2022-01-11 05:32:15,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:15,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:15,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:15,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:15,758 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:15,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835037660] [2022-01-11 05:32:15,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835037660] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:15,759 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:15,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-11 05:32:15,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549851112] [2022-01-11 05:32:15,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:15,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 05:32:15,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:15,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 05:32:15,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:32:15,760 INFO L87 Difference]: Start difference. First operand 5056 states and 9337 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:16,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:16,593 INFO L93 Difference]: Finished difference Result 19937 states and 36949 transitions. [2022-01-11 05:32:16,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-11 05:32:16,593 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 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 89 [2022-01-11 05:32:16,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:16,614 INFO L225 Difference]: With dead ends: 19937 [2022-01-11 05:32:16,614 INFO L226 Difference]: Without dead ends: 15006 [2022-01-11 05:32:16,619 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-01-11 05:32:16,620 INFO L933 BasicCegarLoop]: 8845 mSDtfsCounter, 26512 mSDsluCounter, 13288 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26512 SdHoareTripleChecker+Valid, 22133 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:16,620 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26512 Valid, 22133 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:32:16,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15006 states. [2022-01-11 05:32:16,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15006 to 5076. [2022-01-11 05:32:16,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5076 states, 5072 states have (on average 1.8464116719242902) internal successors, (9365), 5075 states have internal predecessors, (9365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:16,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5076 states to 5076 states and 9365 transitions. [2022-01-11 05:32:16,923 INFO L78 Accepts]: Start accepts. Automaton has 5076 states and 9365 transitions. Word has length 89 [2022-01-11 05:32:16,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:16,924 INFO L470 AbstractCegarLoop]: Abstraction has 5076 states and 9365 transitions. [2022-01-11 05:32:16,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:16,924 INFO L276 IsEmpty]: Start isEmpty. Operand 5076 states and 9365 transitions. [2022-01-11 05:32:16,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-01-11 05:32:16,928 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:16,928 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] [2022-01-11 05:32:16,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-11 05:32:16,928 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:16,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:16,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1655576111, now seen corresponding path program 1 times [2022-01-11 05:32:16,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:16,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709512530] [2022-01-11 05:32:16,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:16,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:16,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:17,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:17,015 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:17,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709512530] [2022-01-11 05:32:17,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709512530] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:17,015 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:17,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:32:17,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502910457] [2022-01-11 05:32:17,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:17,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:32:17,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:17,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:32:17,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:32:17,017 INFO L87 Difference]: Start difference. First operand 5076 states and 9365 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:17,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:17,361 INFO L93 Difference]: Finished difference Result 8968 states and 16539 transitions. [2022-01-11 05:32:17,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:32:17,361 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2022-01-11 05:32:17,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:17,369 INFO L225 Difference]: With dead ends: 8968 [2022-01-11 05:32:17,369 INFO L226 Difference]: Without dead ends: 5105 [2022-01-11 05:32:17,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:32:17,374 INFO L933 BasicCegarLoop]: 4432 mSDtfsCounter, 4577 mSDsluCounter, 4432 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4577 SdHoareTripleChecker+Valid, 8864 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:17,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4577 Valid, 8864 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:32:17,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5105 states. [2022-01-11 05:32:17,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5105 to 5073. [2022-01-11 05:32:17,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5073 states, 5069 states have (on average 1.845334385480371) internal successors, (9354), 5072 states have internal predecessors, (9354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:17,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5073 states to 5073 states and 9354 transitions. [2022-01-11 05:32:17,690 INFO L78 Accepts]: Start accepts. Automaton has 5073 states and 9354 transitions. Word has length 90 [2022-01-11 05:32:17,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:17,690 INFO L470 AbstractCegarLoop]: Abstraction has 5073 states and 9354 transitions. [2022-01-11 05:32:17,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:17,690 INFO L276 IsEmpty]: Start isEmpty. Operand 5073 states and 9354 transitions. [2022-01-11 05:32:17,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-11 05:32:17,694 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:17,694 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:17,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-11 05:32:17,695 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:17,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:17,695 INFO L85 PathProgramCache]: Analyzing trace with hash -866145438, now seen corresponding path program 1 times [2022-01-11 05:32:17,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:17,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116024461] [2022-01-11 05:32:17,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:17,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:17,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:17,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:17,760 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:17,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116024461] [2022-01-11 05:32:17,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116024461] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:17,760 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:17,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:32:17,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044623616] [2022-01-11 05:32:17,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:17,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:32:17,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:17,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:32:17,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:32:17,762 INFO L87 Difference]: Start difference. First operand 5073 states and 9354 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:19,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:19,059 INFO L93 Difference]: Finished difference Result 14113 states and 26116 transitions. [2022-01-11 05:32:19,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:32:19,060 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2022-01-11 05:32:19,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:19,075 INFO L225 Difference]: With dead ends: 14113 [2022-01-11 05:32:19,075 INFO L226 Difference]: Without dead ends: 9198 [2022-01-11 05:32:19,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:32:19,082 INFO L933 BasicCegarLoop]: 4489 mSDtfsCounter, 11693 mSDsluCounter, 3750 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11693 SdHoareTripleChecker+Valid, 8239 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:19,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11693 Valid, 8239 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-11 05:32:19,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9198 states. [2022-01-11 05:32:19,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9198 to 5073. [2022-01-11 05:32:19,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5073 states, 5069 states have (on average 1.8185046360228843) internal successors, (9218), 5072 states have internal predecessors, (9218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:19,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5073 states to 5073 states and 9218 transitions. [2022-01-11 05:32:19,539 INFO L78 Accepts]: Start accepts. Automaton has 5073 states and 9218 transitions. Word has length 91 [2022-01-11 05:32:19,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:19,539 INFO L470 AbstractCegarLoop]: Abstraction has 5073 states and 9218 transitions. [2022-01-11 05:32:19,539 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:19,539 INFO L276 IsEmpty]: Start isEmpty. Operand 5073 states and 9218 transitions. [2022-01-11 05:32:19,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-11 05:32:19,542 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:19,542 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] [2022-01-11 05:32:19,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-11 05:32:19,543 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:19,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:19,543 INFO L85 PathProgramCache]: Analyzing trace with hash -787625532, now seen corresponding path program 1 times [2022-01-11 05:32:19,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:19,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436640103] [2022-01-11 05:32:19,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:19,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:19,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:19,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:19,626 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:19,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436640103] [2022-01-11 05:32:19,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436640103] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:19,626 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:19,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:32:19,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062072776] [2022-01-11 05:32:19,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:19,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:32:19,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:19,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:32:19,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:32:19,628 INFO L87 Difference]: Start difference. First operand 5073 states and 9218 transitions. Second operand has 6 states, 6 states have (on average 16.5) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:24,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:24,469 INFO L93 Difference]: Finished difference Result 52219 states and 96165 transitions. [2022-01-11 05:32:24,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-11 05:32:24,469 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-11 05:32:24,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:24,555 INFO L225 Difference]: With dead ends: 52219 [2022-01-11 05:32:24,555 INFO L226 Difference]: Without dead ends: 47340 [2022-01-11 05:32:24,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2022-01-11 05:32:24,571 INFO L933 BasicCegarLoop]: 20167 mSDtfsCounter, 28366 mSDsluCounter, 65378 mSDsCounter, 0 mSdLazyCounter, 2150 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28366 SdHoareTripleChecker+Valid, 85545 SdHoareTripleChecker+Invalid, 2293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 2150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:24,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28366 Valid, 85545 Invalid, 2293 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [143 Valid, 2150 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-11 05:32:24,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47340 states. [2022-01-11 05:32:25,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47340 to 9953. [2022-01-11 05:32:25,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9953 states, 9949 states have (on average 1.8223942104734143) internal successors, (18131), 9952 states have internal predecessors, (18131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:25,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9953 states to 9953 states and 18131 transitions. [2022-01-11 05:32:25,381 INFO L78 Accepts]: Start accepts. Automaton has 9953 states and 18131 transitions. Word has length 99 [2022-01-11 05:32:25,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:25,382 INFO L470 AbstractCegarLoop]: Abstraction has 9953 states and 18131 transitions. [2022-01-11 05:32:25,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:25,382 INFO L276 IsEmpty]: Start isEmpty. Operand 9953 states and 18131 transitions. [2022-01-11 05:32:25,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-01-11 05:32:25,388 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:25,388 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] [2022-01-11 05:32:25,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-11 05:32:25,388 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:25,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:25,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1567776431, now seen corresponding path program 1 times [2022-01-11 05:32:25,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:25,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952151146] [2022-01-11 05:32:25,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:25,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:25,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:25,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:25,497 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:25,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952151146] [2022-01-11 05:32:25,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952151146] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:25,497 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:25,497 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-11 05:32:25,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829802139] [2022-01-11 05:32:25,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:25,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-11 05:32:25,498 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:25,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-11 05:32:25,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:32:25,499 INFO L87 Difference]: Start difference. First operand 9953 states and 18131 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:28,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:28,266 INFO L93 Difference]: Finished difference Result 46598 states and 85188 transitions. [2022-01-11 05:32:28,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:32:28,266 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2022-01-11 05:32:28,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:28,329 INFO L225 Difference]: With dead ends: 46598 [2022-01-11 05:32:28,329 INFO L226 Difference]: Without dead ends: 36839 [2022-01-11 05:32:28,346 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-01-11 05:32:28,347 INFO L933 BasicCegarLoop]: 15057 mSDtfsCounter, 21728 mSDsluCounter, 39031 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21728 SdHoareTripleChecker+Valid, 54088 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:28,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21728 Valid, 54088 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:32:28,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36839 states. [2022-01-11 05:32:29,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36839 to 9989. [2022-01-11 05:32:29,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9989 states, 9985 states have (on average 1.8203304957436155) internal successors, (18176), 9988 states have internal predecessors, (18176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:29,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9989 states to 9989 states and 18176 transitions. [2022-01-11 05:32:29,232 INFO L78 Accepts]: Start accepts. Automaton has 9989 states and 18176 transitions. Word has length 100 [2022-01-11 05:32:29,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:29,232 INFO L470 AbstractCegarLoop]: Abstraction has 9989 states and 18176 transitions. [2022-01-11 05:32:29,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:29,232 INFO L276 IsEmpty]: Start isEmpty. Operand 9989 states and 18176 transitions. [2022-01-11 05:32:29,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-11 05:32:29,238 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:29,238 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] [2022-01-11 05:32:29,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-11 05:32:29,239 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:29,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:29,239 INFO L85 PathProgramCache]: Analyzing trace with hash 618768238, now seen corresponding path program 1 times [2022-01-11 05:32:29,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:29,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355408042] [2022-01-11 05:32:29,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:29,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:29,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:29,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:29,313 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:29,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355408042] [2022-01-11 05:32:29,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355408042] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:29,314 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:29,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:32:29,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342547531] [2022-01-11 05:32:29,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:29,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:32:29,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:29,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:32:29,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:32:29,316 INFO L87 Difference]: Start difference. First operand 9989 states and 18176 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:32,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:32,593 INFO L93 Difference]: Finished difference Result 39371 states and 71948 transitions. [2022-01-11 05:32:32,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:32:32,593 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-11 05:32:32,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:32,644 INFO L225 Difference]: With dead ends: 39371 [2022-01-11 05:32:32,644 INFO L226 Difference]: Without dead ends: 29750 [2022-01-11 05:32:32,657 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 05:32:32,658 INFO L933 BasicCegarLoop]: 9727 mSDtfsCounter, 15621 mSDsluCounter, 12771 mSDsCounter, 0 mSdLazyCounter, 927 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15621 SdHoareTripleChecker+Valid, 22498 SdHoareTripleChecker+Invalid, 1045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:32,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15621 Valid, 22498 Invalid, 1045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 927 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-11 05:32:32,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29750 states. [2022-01-11 05:32:33,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29750 to 10025. [2022-01-11 05:32:33,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10025 states, 10021 states have (on average 1.8173834946612115) internal successors, (18212), 10024 states have internal predecessors, (18212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:33,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10025 states to 10025 states and 18212 transitions. [2022-01-11 05:32:33,577 INFO L78 Accepts]: Start accepts. Automaton has 10025 states and 18212 transitions. Word has length 101 [2022-01-11 05:32:33,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:33,577 INFO L470 AbstractCegarLoop]: Abstraction has 10025 states and 18212 transitions. [2022-01-11 05:32:33,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:33,578 INFO L276 IsEmpty]: Start isEmpty. Operand 10025 states and 18212 transitions. [2022-01-11 05:32:33,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-11 05:32:33,583 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:33,583 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] [2022-01-11 05:32:33,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-11 05:32:33,583 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:33,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:33,584 INFO L85 PathProgramCache]: Analyzing trace with hash 125974202, now seen corresponding path program 1 times [2022-01-11 05:32:33,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:33,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951532858] [2022-01-11 05:32:33,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:33,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:33,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:33,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:33,671 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:33,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951532858] [2022-01-11 05:32:33,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951532858] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:33,673 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:33,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 05:32:33,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47308611] [2022-01-11 05:32:33,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:33,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:32:33,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:33,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:32:33,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:32:33,674 INFO L87 Difference]: Start difference. First operand 10025 states and 18212 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:35,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:35,163 INFO L93 Difference]: Finished difference Result 24760 states and 45103 transitions. [2022-01-11 05:32:35,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 05:32:35,164 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-11 05:32:35,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:35,185 INFO L225 Difference]: With dead ends: 24760 [2022-01-11 05:32:35,185 INFO L226 Difference]: Without dead ends: 14833 [2022-01-11 05:32:35,197 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:32:35,198 INFO L933 BasicCegarLoop]: 6482 mSDtfsCounter, 12875 mSDsluCounter, 13100 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12875 SdHoareTripleChecker+Valid, 19582 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:35,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12875 Valid, 19582 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:32:35,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14833 states. [2022-01-11 05:32:36,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14833 to 9959. [2022-01-11 05:32:36,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9959 states, 9955 states have (on average 1.8198895027624309) internal successors, (18117), 9958 states have internal predecessors, (18117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:36,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9959 states to 9959 states and 18117 transitions. [2022-01-11 05:32:36,095 INFO L78 Accepts]: Start accepts. Automaton has 9959 states and 18117 transitions. Word has length 101 [2022-01-11 05:32:36,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:36,095 INFO L470 AbstractCegarLoop]: Abstraction has 9959 states and 18117 transitions. [2022-01-11 05:32:36,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:36,095 INFO L276 IsEmpty]: Start isEmpty. Operand 9959 states and 18117 transitions. [2022-01-11 05:32:36,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-01-11 05:32:36,100 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:36,100 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:36,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-11 05:32:36,101 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:36,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:36,101 INFO L85 PathProgramCache]: Analyzing trace with hash -635547010, now seen corresponding path program 1 times [2022-01-11 05:32:36,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:36,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288615454] [2022-01-11 05:32:36,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:36,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:36,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:36,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:36,159 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:36,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288615454] [2022-01-11 05:32:36,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288615454] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:36,159 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:36,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:32:36,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685409679] [2022-01-11 05:32:36,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:36,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:32:36,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:36,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:32:36,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:32:36,161 INFO L87 Difference]: Start difference. First operand 9959 states and 18117 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:38,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:38,694 INFO L93 Difference]: Finished difference Result 33519 states and 61495 transitions. [2022-01-11 05:32:38,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:32:38,694 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 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 102 [2022-01-11 05:32:38,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:38,730 INFO L225 Difference]: With dead ends: 33519 [2022-01-11 05:32:38,731 INFO L226 Difference]: Without dead ends: 23784 [2022-01-11 05:32:38,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:32:38,745 INFO L933 BasicCegarLoop]: 10782 mSDtfsCounter, 7247 mSDsluCounter, 9024 mSDsCounter, 0 mSdLazyCounter, 1043 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7247 SdHoareTripleChecker+Valid, 19806 SdHoareTripleChecker+Invalid, 1147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:38,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7247 Valid, 19806 Invalid, 1147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 1043 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-11 05:32:38,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23784 states. [2022-01-11 05:32:39,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23784 to 13327. [2022-01-11 05:32:39,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13327 states, 13323 states have (on average 1.8053741649778579) internal successors, (24053), 13326 states have internal predecessors, (24053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:39,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13327 states to 13327 states and 24053 transitions. [2022-01-11 05:32:39,820 INFO L78 Accepts]: Start accepts. Automaton has 13327 states and 24053 transitions. Word has length 102 [2022-01-11 05:32:39,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:39,820 INFO L470 AbstractCegarLoop]: Abstraction has 13327 states and 24053 transitions. [2022-01-11 05:32:39,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:39,820 INFO L276 IsEmpty]: Start isEmpty. Operand 13327 states and 24053 transitions. [2022-01-11 05:32:39,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-01-11 05:32:39,825 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:39,825 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:39,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-11 05:32:39,826 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:39,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:39,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1997667876, now seen corresponding path program 1 times [2022-01-11 05:32:39,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:39,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755710368] [2022-01-11 05:32:39,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:39,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:39,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:39,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:39,926 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:39,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755710368] [2022-01-11 05:32:39,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755710368] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:39,927 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:39,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-11 05:32:39,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184434178] [2022-01-11 05:32:39,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:39,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 05:32:39,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:39,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 05:32:39,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:32:39,929 INFO L87 Difference]: Start difference. First operand 13327 states and 24053 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:42,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:42,398 INFO L93 Difference]: Finished difference Result 46093 states and 83395 transitions. [2022-01-11 05:32:42,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-11 05:32:42,398 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 0 states have call successors, (0), 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 102 [2022-01-11 05:32:42,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:42,452 INFO L225 Difference]: With dead ends: 46093 [2022-01-11 05:32:42,452 INFO L226 Difference]: Without dead ends: 32928 [2022-01-11 05:32:42,466 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-01-11 05:32:42,466 INFO L933 BasicCegarLoop]: 11869 mSDtfsCounter, 27520 mSDsluCounter, 15910 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27520 SdHoareTripleChecker+Valid, 27779 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:42,467 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27520 Valid, 27779 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:32:42,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32928 states. [2022-01-11 05:32:43,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32928 to 13349. [2022-01-11 05:32:43,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13349 states, 13345 states have (on average 1.8044960659423004) internal successors, (24081), 13348 states have internal predecessors, (24081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:43,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13349 states to 13349 states and 24081 transitions. [2022-01-11 05:32:43,517 INFO L78 Accepts]: Start accepts. Automaton has 13349 states and 24081 transitions. Word has length 102 [2022-01-11 05:32:43,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:43,517 INFO L470 AbstractCegarLoop]: Abstraction has 13349 states and 24081 transitions. [2022-01-11 05:32:43,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:43,517 INFO L276 IsEmpty]: Start isEmpty. Operand 13349 states and 24081 transitions. [2022-01-11 05:32:43,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-01-11 05:32:43,523 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:43,524 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] [2022-01-11 05:32:43,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-11 05:32:43,524 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:43,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:43,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1404309131, now seen corresponding path program 1 times [2022-01-11 05:32:43,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:43,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552756783] [2022-01-11 05:32:43,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:43,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:43,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:43,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:43,603 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:43,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552756783] [2022-01-11 05:32:43,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552756783] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:43,603 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:43,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 05:32:43,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062325648] [2022-01-11 05:32:43,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:43,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:32:43,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:43,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:32:43,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:32:43,604 INFO L87 Difference]: Start difference. First operand 13349 states and 24081 transitions. Second operand has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:44,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:44,316 INFO L93 Difference]: Finished difference Result 19864 states and 35889 transitions. [2022-01-11 05:32:44,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-11 05:32:44,317 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2022-01-11 05:32:44,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:44,326 INFO L225 Difference]: With dead ends: 19864 [2022-01-11 05:32:44,326 INFO L226 Difference]: Without dead ends: 6603 [2022-01-11 05:32:44,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:32:44,336 INFO L933 BasicCegarLoop]: 3962 mSDtfsCounter, 7906 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7906 SdHoareTripleChecker+Valid, 4044 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:44,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7906 Valid, 4044 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:32:44,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6603 states. [2022-01-11 05:32:44,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6603 to 6603. [2022-01-11 05:32:44,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6603 states, 6599 states have (on average 1.8052735262918624) internal successors, (11913), 6602 states have internal predecessors, (11913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:44,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6603 states to 6603 states and 11913 transitions. [2022-01-11 05:32:44,834 INFO L78 Accepts]: Start accepts. Automaton has 6603 states and 11913 transitions. Word has length 103 [2022-01-11 05:32:44,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:44,835 INFO L470 AbstractCegarLoop]: Abstraction has 6603 states and 11913 transitions. [2022-01-11 05:32:44,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:44,835 INFO L276 IsEmpty]: Start isEmpty. Operand 6603 states and 11913 transitions. [2022-01-11 05:32:44,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-11 05:32:44,837 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:44,837 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:44,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-11 05:32:44,837 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:44,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:44,838 INFO L85 PathProgramCache]: Analyzing trace with hash 404158892, now seen corresponding path program 1 times [2022-01-11 05:32:44,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:44,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879885658] [2022-01-11 05:32:44,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:44,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:44,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:44,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:44,909 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:44,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879885658] [2022-01-11 05:32:44,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879885658] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:44,909 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:44,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:32:44,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403218195] [2022-01-11 05:32:44,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:44,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:32:44,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:44,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:32:44,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:32:44,910 INFO L87 Difference]: Start difference. First operand 6603 states and 11913 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:48,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:48,212 INFO L93 Difference]: Finished difference Result 47167 states and 85709 transitions. [2022-01-11 05:32:48,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:32:48,213 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2022-01-11 05:32:48,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:48,276 INFO L225 Difference]: With dead ends: 47167 [2022-01-11 05:32:48,276 INFO L226 Difference]: Without dead ends: 40694 [2022-01-11 05:32:48,288 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:32:48,289 INFO L933 BasicCegarLoop]: 6211 mSDtfsCounter, 27879 mSDsluCounter, 18385 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27879 SdHoareTripleChecker+Valid, 24596 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:48,289 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27879 Valid, 24596 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:32:48,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40694 states. [2022-01-11 05:32:49,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40694 to 12045. [2022-01-11 05:32:49,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12045 states, 12041 states have (on average 1.8150485840046509) internal successors, (21855), 12044 states have internal predecessors, (21855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:49,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12045 states to 12045 states and 21855 transitions. [2022-01-11 05:32:49,395 INFO L78 Accepts]: Start accepts. Automaton has 12045 states and 21855 transitions. Word has length 104 [2022-01-11 05:32:49,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:49,395 INFO L470 AbstractCegarLoop]: Abstraction has 12045 states and 21855 transitions. [2022-01-11 05:32:49,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:49,396 INFO L276 IsEmpty]: Start isEmpty. Operand 12045 states and 21855 transitions. [2022-01-11 05:32:49,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-11 05:32:49,398 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:49,399 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:49,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-11 05:32:49,399 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:49,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:49,399 INFO L85 PathProgramCache]: Analyzing trace with hash 2036962891, now seen corresponding path program 1 times [2022-01-11 05:32:49,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:49,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496003737] [2022-01-11 05:32:49,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:49,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:49,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:49,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:49,482 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:49,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496003737] [2022-01-11 05:32:49,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496003737] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:49,483 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:49,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:32:49,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789494243] [2022-01-11 05:32:49,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:49,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:32:49,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:49,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:32:49,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:32:49,484 INFO L87 Difference]: Start difference. First operand 12045 states and 21855 transitions. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 5 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:51,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:51,478 INFO L93 Difference]: Finished difference Result 22063 states and 39823 transitions. [2022-01-11 05:32:51,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-11 05:32:51,479 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 5 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2022-01-11 05:32:51,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:51,507 INFO L225 Difference]: With dead ends: 22063 [2022-01-11 05:32:51,508 INFO L226 Difference]: Without dead ends: 16640 [2022-01-11 05:32:51,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-01-11 05:32:51,519 INFO L933 BasicCegarLoop]: 5451 mSDtfsCounter, 16697 mSDsluCounter, 7019 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16697 SdHoareTripleChecker+Valid, 12470 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:51,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16697 Valid, 12470 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-11 05:32:51,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16640 states.