/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_BITWISE.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec1_product14.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 12:12:12,264 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 12:12:12,266 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 12:12:12,328 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 12:12:12,328 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 12:12:12,330 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 12:12:12,331 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 12:12:12,337 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 12:12:12,339 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 12:12:12,340 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 12:12:12,340 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 12:12:12,341 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 12:12:12,341 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 12:12:12,344 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 12:12:12,345 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 12:12:12,345 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 12:12:12,346 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 12:12:12,347 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 12:12:12,348 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 12:12:12,350 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 12:12:12,351 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 12:12:12,360 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 12:12:12,361 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 12:12:12,362 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 12:12:12,364 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 12:12:12,365 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 12:12:12,365 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 12:12:12,366 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 12:12:12,366 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 12:12:12,367 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 12:12:12,367 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 12:12:12,368 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 12:12:12,368 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 12:12:12,369 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 12:12:12,370 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 12:12:12,370 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 12:12:12,371 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 12:12:12,371 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 12:12:12,375 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 12:12:12,376 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 12:12:12,377 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 12:12:12,378 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 12:12:12,418 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 12:12:12,418 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 12:12:12,418 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 12:12:12,418 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 12:12:12,419 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 12:12:12,419 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 12:12:12,420 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 12:12:12,420 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 12:12:12,420 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 12:12:12,420 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 12:12:12,420 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 12:12:12,420 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 12:12:12,420 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 12:12:12,421 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 12:12:12,421 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 12:12:12,421 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 12:12:12,421 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 12:12:12,421 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 12:12:12,421 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 12:12:12,421 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 12:12:12,421 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 12:12:12,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:12:12,424 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 12:12:12,425 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 12:12:12,425 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 12:12:12,425 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 12:12:12,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 12:12:12,425 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 12:12:12,426 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 12:12:12,426 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 12:12:12,426 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 12:12:12,426 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 12:12:12,428 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 12:12:12,428 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 12:12:12,671 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 12:12:12,702 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 12:12:12,705 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 12:12:12,706 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 12:12:12,706 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 12:12:12,708 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec1_product14.cil.c [2022-01-10 12:12:12,784 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d18899db8/5c270581a6ee4d8b95feb61dc5c049ac/FLAGf7963f901 [2022-01-10 12:12:13,293 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 12:12:13,294 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product14.cil.c [2022-01-10 12:12:13,316 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d18899db8/5c270581a6ee4d8b95feb61dc5c049ac/FLAGf7963f901 [2022-01-10 12:12:13,572 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d18899db8/5c270581a6ee4d8b95feb61dc5c049ac [2022-01-10 12:12:13,574 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 12:12:13,575 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 12:12:13,577 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 12:12:13,577 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 12:12:13,590 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 12:12:13,591 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:12:13" (1/1) ... [2022-01-10 12:12:13,592 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@565d8936 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:12:13, skipping insertion in model container [2022-01-10 12:12:13,592 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:12:13" (1/1) ... [2022-01-10 12:12:13,597 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 12:12:13,662 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:12:14,184 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product14.cil.c[62671,62684] [2022-01-10 12:12:14,187 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:12:14,204 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 12:12:14,220 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:12:14,322 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product14.cil.c[62671,62684] [2022-01-10 12:12:14,322 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:12:14,331 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 12:12:14,419 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product14.cil.c[62671,62684] [2022-01-10 12:12:14,420 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:12:14,452 INFO L208 MainTranslator]: Completed translation [2022-01-10 12:12:14,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:12:14 WrapperNode [2022-01-10 12:12:14,453 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 12:12:14,454 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 12:12:14,454 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 12:12:14,454 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 12:12:14,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:12:14" (1/1) ... [2022-01-10 12:12:14,490 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:12:14" (1/1) ... [2022-01-10 12:12:14,606 INFO L137 Inliner]: procedures = 127, calls = 205, calls flagged for inlining = 117, calls inlined = 226, statements flattened = 3504 [2022-01-10 12:12:14,606 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 12:12:14,607 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 12:12:14,607 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 12:12:14,607 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 12:12:14,615 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:12:14" (1/1) ... [2022-01-10 12:12:14,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:12:14" (1/1) ... [2022-01-10 12:12:14,641 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:12:14" (1/1) ... [2022-01-10 12:12:14,642 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:12:14" (1/1) ... [2022-01-10 12:12:14,681 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:12:14" (1/1) ... [2022-01-10 12:12:14,701 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:12:14" (1/1) ... [2022-01-10 12:12:14,708 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:12:14" (1/1) ... [2022-01-10 12:12:14,721 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 12:12:14,722 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 12:12:14,722 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 12:12:14,727 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 12:12:14,728 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:12:14" (1/1) ... [2022-01-10 12:12:14,735 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:12:14,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 12:12:14,759 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 12:12:14,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 12:12:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-01-10 12:12:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 12:12:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 12:12:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 12:12:14,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 12:12:15,030 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 12:12:15,032 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 12:12:16,713 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 12:12:16,727 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 12:12:16,727 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 12:12:16,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:12:16 BoogieIcfgContainer [2022-01-10 12:12:16,730 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 12:12:16,731 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 12:12:16,731 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 12:12:16,732 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 12:12:16,735 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:12:16" (1/1) ... [2022-01-10 12:12:17,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:12:17 BasicIcfg [2022-01-10 12:12:17,197 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 12:12:17,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 12:12:17,198 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 12:12:17,201 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 12:12:17,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:12:13" (1/4) ... [2022-01-10 12:12:17,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1002b284 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:12:17, skipping insertion in model container [2022-01-10 12:12:17,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:12:14" (2/4) ... [2022-01-10 12:12:17,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1002b284 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:12:17, skipping insertion in model container [2022-01-10 12:12:17,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:12:16" (3/4) ... [2022-01-10 12:12:17,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1002b284 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 12:12:17, skipping insertion in model container [2022-01-10 12:12:17,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:12:17" (4/4) ... [2022-01-10 12:12:17,204 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec1_product14.cil.cTransformedIcfg [2022-01-10 12:12:17,208 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 12:12:17,209 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-01-10 12:12:17,266 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 12:12:17,274 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 12:12:17,274 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-10 12:12:17,311 INFO L276 IsEmpty]: Start isEmpty. Operand has 833 states, 826 states have (on average 1.7070217917675545) internal successors, (1410), 832 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:17,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-10 12:12:17,337 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:17,338 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] [2022-01-10 12:12:17,338 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:12:17,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:17,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1586305899, now seen corresponding path program 1 times [2022-01-10 12:12:17,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:17,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736966996] [2022-01-10 12:12:17,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:17,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:17,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:17,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:17,781 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:17,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736966996] [2022-01-10 12:12:17,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736966996] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:17,782 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:17,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:12:17,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600065331] [2022-01-10 12:12:17,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:17,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 12:12:17,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:17,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 12:12:17,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 12:12:17,820 INFO L87 Difference]: Start difference. First operand has 833 states, 826 states have (on average 1.7070217917675545) internal successors, (1410), 832 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:17,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:17,907 INFO L93 Difference]: Finished difference Result 1362 states and 2281 transitions. [2022-01-10 12:12:17,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 12:12:17,909 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2022-01-10 12:12:17,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:17,930 INFO L225 Difference]: With dead ends: 1362 [2022-01-10 12:12:17,930 INFO L226 Difference]: Without dead ends: 748 [2022-01-10 12:12:17,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 12:12:17,944 INFO L933 BasicCegarLoop]: 1396 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1396 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:12:17,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1396 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:12:17,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2022-01-10 12:12:18,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 748. [2022-01-10 12:12:18,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 748 states, 742 states have (on average 1.7142857142857142) internal successors, (1272), 747 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:18,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 1272 transitions. [2022-01-10 12:12:18,046 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 1272 transitions. Word has length 51 [2022-01-10 12:12:18,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:12:18,047 INFO L470 AbstractCegarLoop]: Abstraction has 748 states and 1272 transitions. [2022-01-10 12:12:18,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:18,048 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 1272 transitions. [2022-01-10 12:12:18,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-10 12:12:18,050 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:18,050 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:12:18,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 12:12:18,051 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:12:18,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:18,054 INFO L85 PathProgramCache]: Analyzing trace with hash -769726312, now seen corresponding path program 1 times [2022-01-10 12:12:18,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:18,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416008231] [2022-01-10 12:12:18,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:18,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:18,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:18,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:18,294 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:18,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416008231] [2022-01-10 12:12:18,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416008231] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:18,295 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:18,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:12:18,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970117714] [2022-01-10 12:12:18,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:18,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:12:18,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:18,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:12:18,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:12:18,298 INFO L87 Difference]: Start difference. First operand 748 states and 1272 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:18,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:18,362 INFO L93 Difference]: Finished difference Result 1089 states and 1829 transitions. [2022-01-10 12:12:18,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:12:18,363 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-01-10 12:12:18,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:18,366 INFO L225 Difference]: With dead ends: 1089 [2022-01-10 12:12:18,366 INFO L226 Difference]: Without dead ends: 736 [2022-01-10 12:12:18,367 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:12:18,368 INFO L933 BasicCegarLoop]: 1252 mSDtfsCounter, 656 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 1787 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:12:18,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [656 Valid, 1787 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:12:18,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2022-01-10 12:12:18,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 736. [2022-01-10 12:12:18,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 732 states have (on average 1.7131147540983607) internal successors, (1254), 735 states have internal predecessors, (1254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:18,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 1254 transitions. [2022-01-10 12:12:18,394 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 1254 transitions. Word has length 52 [2022-01-10 12:12:18,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:12:18,394 INFO L470 AbstractCegarLoop]: Abstraction has 736 states and 1254 transitions. [2022-01-10 12:12:18,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:18,395 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 1254 transitions. [2022-01-10 12:12:18,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-10 12:12:18,397 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:18,397 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] [2022-01-10 12:12:18,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 12:12:18,398 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:12:18,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:18,398 INFO L85 PathProgramCache]: Analyzing trace with hash -916262663, now seen corresponding path program 1 times [2022-01-10 12:12:18,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:18,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782688940] [2022-01-10 12:12:18,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:18,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:18,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:18,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:18,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:18,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782688940] [2022-01-10 12:12:18,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782688940] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:18,670 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:18,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:12:18,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005252198] [2022-01-10 12:12:18,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:18,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:12:18,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:18,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:12:18,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:12:18,672 INFO L87 Difference]: Start difference. First operand 736 states and 1254 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 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) [2022-01-10 12:12:18,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:18,787 INFO L93 Difference]: Finished difference Result 1453 states and 2480 transitions. [2022-01-10 12:12:18,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:12:18,788 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 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 [2022-01-10 12:12:18,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:18,793 INFO L225 Difference]: With dead ends: 1453 [2022-01-10 12:12:18,794 INFO L226 Difference]: Without dead ends: 736 [2022-01-10 12:12:18,800 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:12:18,803 INFO L933 BasicCegarLoop]: 1234 mSDtfsCounter, 1229 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1229 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:12:18,804 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1229 Valid, 1247 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:12:18,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2022-01-10 12:12:18,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 736. [2022-01-10 12:12:18,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 732 states have (on average 1.710382513661202) internal successors, (1252), 735 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:18,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 1252 transitions. [2022-01-10 12:12:18,845 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 1252 transitions. Word has length 88 [2022-01-10 12:12:18,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:12:18,847 INFO L470 AbstractCegarLoop]: Abstraction has 736 states and 1252 transitions. [2022-01-10 12:12:18,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 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) [2022-01-10 12:12:18,847 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 1252 transitions. [2022-01-10 12:12:18,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-01-10 12:12:18,852 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:18,852 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] [2022-01-10 12:12:18,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 12:12:18,853 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:12:18,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:18,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1219885625, now seen corresponding path program 1 times [2022-01-10 12:12:18,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:18,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614175391] [2022-01-10 12:12:18,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:18,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:19,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:19,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:19,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:19,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614175391] [2022-01-10 12:12:19,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614175391] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:19,075 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:19,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:12:19,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006656470] [2022-01-10 12:12:19,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:19,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:12:19,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:19,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:12:19,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:12:19,080 INFO L87 Difference]: Start difference. First operand 736 states and 1252 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) [2022-01-10 12:12:19,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:19,478 INFO L93 Difference]: Finished difference Result 3548 states and 6056 transitions. [2022-01-10 12:12:19,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 12:12:19,479 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 [2022-01-10 12:12:19,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:19,492 INFO L225 Difference]: With dead ends: 3548 [2022-01-10 12:12:19,492 INFO L226 Difference]: Without dead ends: 2836 [2022-01-10 12:12:19,495 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 12:12:19,505 INFO L933 BasicCegarLoop]: 2427 mSDtfsCounter, 6043 mSDsluCounter, 3628 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6043 SdHoareTripleChecker+Valid, 6055 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:12:19,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6043 Valid, 6055 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:12:19,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2836 states. [2022-01-10 12:12:19,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2836 to 736. [2022-01-10 12:12:19,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 732 states have (on average 1.709016393442623) internal successors, (1251), 735 states have internal predecessors, (1251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:19,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 1251 transitions. [2022-01-10 12:12:19,569 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 1251 transitions. Word has length 90 [2022-01-10 12:12:19,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:12:19,569 INFO L470 AbstractCegarLoop]: Abstraction has 736 states and 1251 transitions. [2022-01-10 12:12:19,570 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) [2022-01-10 12:12:19,570 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 1251 transitions. [2022-01-10 12:12:19,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-10 12:12:19,572 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:19,572 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] [2022-01-10 12:12:19,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 12:12:19,572 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:12:19,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:19,573 INFO L85 PathProgramCache]: Analyzing trace with hash 718981127, now seen corresponding path program 1 times [2022-01-10 12:12:19,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:19,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942651091] [2022-01-10 12:12:19,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:19,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:19,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:19,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:19,737 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:19,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942651091] [2022-01-10 12:12:19,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942651091] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:19,737 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:19,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:12:19,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934596186] [2022-01-10 12:12:19,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:19,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:12:19,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:19,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:12:19,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:12:19,739 INFO L87 Difference]: Start difference. First operand 736 states and 1251 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) 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) [2022-01-10 12:12:19,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:19,807 INFO L93 Difference]: Finished difference Result 1457 states and 2480 transitions. [2022-01-10 12:12:19,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:12:19,808 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) 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 [2022-01-10 12:12:19,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:19,811 INFO L225 Difference]: With dead ends: 1457 [2022-01-10 12:12:19,811 INFO L226 Difference]: Without dead ends: 750 [2022-01-10 12:12:19,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:12:19,813 INFO L933 BasicCegarLoop]: 1265 mSDtfsCounter, 1230 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1230 SdHoareTripleChecker+Valid, 1287 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:12:19,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1230 Valid, 1287 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:12:19,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2022-01-10 12:12:19,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 736. [2022-01-10 12:12:19,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 732 states have (on average 1.7076502732240437) internal successors, (1250), 735 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:19,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 1250 transitions. [2022-01-10 12:12:19,865 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 1250 transitions. Word has length 91 [2022-01-10 12:12:19,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:12:19,870 INFO L470 AbstractCegarLoop]: Abstraction has 736 states and 1250 transitions. [2022-01-10 12:12:19,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) 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) [2022-01-10 12:12:19,870 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 1250 transitions. [2022-01-10 12:12:19,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-01-10 12:12:19,876 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:19,876 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] [2022-01-10 12:12:19,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 12:12:19,877 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:12:19,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:19,877 INFO L85 PathProgramCache]: Analyzing trace with hash -240954312, now seen corresponding path program 1 times [2022-01-10 12:12:19,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:19,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790748752] [2022-01-10 12:12:19,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:19,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:19,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:20,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:20,025 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:20,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790748752] [2022-01-10 12:12:20,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790748752] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:20,026 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:20,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:12:20,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014207747] [2022-01-10 12:12:20,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:20,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:12:20,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:20,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:12:20,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:12:20,028 INFO L87 Difference]: Start difference. First operand 736 states and 1250 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:20,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:20,231 INFO L93 Difference]: Finished difference Result 2142 states and 3650 transitions. [2022-01-10 12:12:20,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:12:20,232 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-01-10 12:12:20,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:20,239 INFO L225 Difference]: With dead ends: 2142 [2022-01-10 12:12:20,239 INFO L226 Difference]: Without dead ends: 1440 [2022-01-10 12:12:20,241 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 12:12:20,242 INFO L933 BasicCegarLoop]: 1259 mSDtfsCounter, 5966 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5966 SdHoareTripleChecker+Valid, 2532 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:12:20,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5966 Valid, 2532 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:12:20,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1440 states. [2022-01-10 12:12:20,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1440 to 736. [2022-01-10 12:12:20,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 732 states have (on average 1.7049180327868851) internal successors, (1248), 735 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:20,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 1248 transitions. [2022-01-10 12:12:20,295 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 1248 transitions. Word has length 92 [2022-01-10 12:12:20,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:12:20,295 INFO L470 AbstractCegarLoop]: Abstraction has 736 states and 1248 transitions. [2022-01-10 12:12:20,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:20,296 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 1248 transitions. [2022-01-10 12:12:20,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-01-10 12:12:20,297 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:20,297 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] [2022-01-10 12:12:20,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 12:12:20,298 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:12:20,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:20,298 INFO L85 PathProgramCache]: Analyzing trace with hash 377665019, now seen corresponding path program 1 times [2022-01-10 12:12:20,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:20,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165810853] [2022-01-10 12:12:20,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:20,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:20,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:20,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:20,494 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:20,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165810853] [2022-01-10 12:12:20,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165810853] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:20,495 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:20,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 12:12:20,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632136054] [2022-01-10 12:12:20,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:20,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 12:12:20,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:20,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 12:12:20,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:12:20,497 INFO L87 Difference]: Start difference. First operand 736 states and 1248 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:21,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:21,729 INFO L93 Difference]: Finished difference Result 3298 states and 5482 transitions. [2022-01-10 12:12:21,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-10 12:12:21,729 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2022-01-10 12:12:21,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:21,742 INFO L225 Difference]: With dead ends: 3298 [2022-01-10 12:12:21,742 INFO L226 Difference]: Without dead ends: 2917 [2022-01-10 12:12:21,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=153, Invalid=309, Unknown=0, NotChecked=0, Total=462 [2022-01-10 12:12:21,745 INFO L933 BasicCegarLoop]: 1810 mSDtfsCounter, 7993 mSDsluCounter, 10630 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7993 SdHoareTripleChecker+Valid, 12440 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 12:12:21,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7993 Valid, 12440 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-10 12:12:21,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2917 states. [2022-01-10 12:12:21,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2917 to 1380. [2022-01-10 12:12:21,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1380 states, 1376 states have (on average 1.712936046511628) internal successors, (2357), 1379 states have internal predecessors, (2357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:21,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 2357 transitions. [2022-01-10 12:12:21,894 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 2357 transitions. Word has length 94 [2022-01-10 12:12:21,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:12:21,894 INFO L470 AbstractCegarLoop]: Abstraction has 1380 states and 2357 transitions. [2022-01-10 12:12:21,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:21,895 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 2357 transitions. [2022-01-10 12:12:21,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-01-10 12:12:21,898 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:21,898 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] [2022-01-10 12:12:21,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 12:12:21,898 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:12:21,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:21,899 INFO L85 PathProgramCache]: Analyzing trace with hash -363203158, now seen corresponding path program 1 times [2022-01-10 12:12:21,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:21,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288592199] [2022-01-10 12:12:21,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:21,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:21,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:22,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:22,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:22,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288592199] [2022-01-10 12:12:22,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288592199] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:22,005 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:22,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:12:22,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179589015] [2022-01-10 12:12:22,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:22,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 12:12:22,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:22,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 12:12:22,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:12:22,007 INFO L87 Difference]: Start difference. First operand 1380 states and 2357 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:22,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:22,237 INFO L93 Difference]: Finished difference Result 2179 states and 3673 transitions. [2022-01-10 12:12:22,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 12:12:22,238 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2022-01-10 12:12:22,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:22,247 INFO L225 Difference]: With dead ends: 2179 [2022-01-10 12:12:22,248 INFO L226 Difference]: Without dead ends: 1747 [2022-01-10 12:12:22,249 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:12:22,250 INFO L933 BasicCegarLoop]: 1242 mSDtfsCounter, 1967 mSDsluCounter, 1600 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1967 SdHoareTripleChecker+Valid, 2842 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:12:22,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1967 Valid, 2842 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:12:22,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1747 states. [2022-01-10 12:12:22,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1747 to 1380. [2022-01-10 12:12:22,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1380 states, 1376 states have (on average 1.7122093023255813) internal successors, (2356), 1379 states have internal predecessors, (2356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:22,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 2356 transitions. [2022-01-10 12:12:22,388 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 2356 transitions. Word has length 95 [2022-01-10 12:12:22,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:12:22,388 INFO L470 AbstractCegarLoop]: Abstraction has 1380 states and 2356 transitions. [2022-01-10 12:12:22,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:22,389 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 2356 transitions. [2022-01-10 12:12:22,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-01-10 12:12:22,393 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:22,393 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] [2022-01-10 12:12:22,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 12:12:22,394 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:12:22,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:22,395 INFO L85 PathProgramCache]: Analyzing trace with hash 2001145033, now seen corresponding path program 1 times [2022-01-10 12:12:22,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:22,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118920474] [2022-01-10 12:12:22,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:22,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:22,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:22,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:22,552 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:22,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118920474] [2022-01-10 12:12:22,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118920474] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:22,552 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:22,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:12:22,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377593245] [2022-01-10 12:12:22,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:22,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:12:22,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:22,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:12:22,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:12:22,554 INFO L87 Difference]: Start difference. First operand 1380 states and 2356 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:23,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:23,294 INFO L93 Difference]: Finished difference Result 4402 states and 7340 transitions. [2022-01-10 12:12:23,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 12:12:23,294 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2022-01-10 12:12:23,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:23,312 INFO L225 Difference]: With dead ends: 4402 [2022-01-10 12:12:23,312 INFO L226 Difference]: Without dead ends: 3808 [2022-01-10 12:12:23,315 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:12:23,318 INFO L933 BasicCegarLoop]: 3364 mSDtfsCounter, 2984 mSDsluCounter, 6433 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2984 SdHoareTripleChecker+Valid, 9797 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 12:12:23,319 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2984 Valid, 9797 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 12:12:23,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3808 states. [2022-01-10 12:12:23,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3808 to 1735. [2022-01-10 12:12:23,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1735 states, 1731 states have (on average 1.686886192952051) internal successors, (2920), 1734 states have internal predecessors, (2920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:23,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1735 states to 1735 states and 2920 transitions. [2022-01-10 12:12:23,532 INFO L78 Accepts]: Start accepts. Automaton has 1735 states and 2920 transitions. Word has length 95 [2022-01-10 12:12:23,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:12:23,534 INFO L470 AbstractCegarLoop]: Abstraction has 1735 states and 2920 transitions. [2022-01-10 12:12:23,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:23,534 INFO L276 IsEmpty]: Start isEmpty. Operand 1735 states and 2920 transitions. [2022-01-10 12:12:23,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-10 12:12:23,538 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:23,538 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] [2022-01-10 12:12:23,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 12:12:23,538 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:12:23,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:23,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1172737019, now seen corresponding path program 1 times [2022-01-10 12:12:23,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:23,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159550646] [2022-01-10 12:12:23,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:23,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:23,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:23,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:23,724 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:23,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159550646] [2022-01-10 12:12:23,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159550646] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:23,724 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:23,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 12:12:23,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093977923] [2022-01-10 12:12:23,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:23,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 12:12:23,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:23,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 12:12:23,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:12:23,725 INFO L87 Difference]: Start difference. First operand 1735 states and 2920 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:25,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:25,261 INFO L93 Difference]: Finished difference Result 6418 states and 10606 transitions. [2022-01-10 12:12:25,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-10 12:12:25,262 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2022-01-10 12:12:25,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:25,287 INFO L225 Difference]: With dead ends: 6418 [2022-01-10 12:12:25,287 INFO L226 Difference]: Without dead ends: 5684 [2022-01-10 12:12:25,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=153, Invalid=309, Unknown=0, NotChecked=0, Total=462 [2022-01-10 12:12:25,292 INFO L933 BasicCegarLoop]: 1639 mSDtfsCounter, 10742 mSDsluCounter, 8575 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10742 SdHoareTripleChecker+Valid, 10214 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 12:12:25,293 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10742 Valid, 10214 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 12:12:25,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5684 states. [2022-01-10 12:12:25,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5684 to 3065. [2022-01-10 12:12:25,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3065 states, 3061 states have (on average 1.69421757595557) internal successors, (5186), 3064 states have internal predecessors, (5186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:25,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3065 states to 3065 states and 5186 transitions. [2022-01-10 12:12:25,651 INFO L78 Accepts]: Start accepts. Automaton has 3065 states and 5186 transitions. Word has length 96 [2022-01-10 12:12:25,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:12:25,652 INFO L470 AbstractCegarLoop]: Abstraction has 3065 states and 5186 transitions. [2022-01-10 12:12:25,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:25,652 INFO L276 IsEmpty]: Start isEmpty. Operand 3065 states and 5186 transitions. [2022-01-10 12:12:25,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-10 12:12:25,659 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:25,659 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] [2022-01-10 12:12:25,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 12:12:25,660 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:12:25,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:25,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1706680155, now seen corresponding path program 1 times [2022-01-10 12:12:25,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:25,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961256818] [2022-01-10 12:12:25,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:25,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:25,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:25,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:25,840 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:25,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961256818] [2022-01-10 12:12:25,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961256818] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:25,841 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:25,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 12:12:25,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793509829] [2022-01-10 12:12:25,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:25,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 12:12:25,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:25,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 12:12:25,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 12:12:25,842 INFO L87 Difference]: Start difference. First operand 3065 states and 5186 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:27,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:27,198 INFO L93 Difference]: Finished difference Result 15866 states and 26623 transitions. [2022-01-10 12:12:27,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 12:12:27,198 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2022-01-10 12:12:27,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:27,261 INFO L225 Difference]: With dead ends: 15866 [2022-01-10 12:12:27,262 INFO L226 Difference]: Without dead ends: 14680 [2022-01-10 12:12:27,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-10 12:12:27,272 INFO L933 BasicCegarLoop]: 1717 mSDtfsCounter, 7008 mSDsluCounter, 6710 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7008 SdHoareTripleChecker+Valid, 8427 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 12:12:27,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7008 Valid, 8427 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 12:12:27,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14680 states. [2022-01-10 12:12:27,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14680 to 5862. [2022-01-10 12:12:27,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5862 states, 5858 states have (on average 1.6944349607374531) internal successors, (9926), 5861 states have internal predecessors, (9926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:27,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5862 states to 5862 states and 9926 transitions. [2022-01-10 12:12:27,946 INFO L78 Accepts]: Start accepts. Automaton has 5862 states and 9926 transitions. Word has length 96 [2022-01-10 12:12:27,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:12:27,946 INFO L470 AbstractCegarLoop]: Abstraction has 5862 states and 9926 transitions. [2022-01-10 12:12:27,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:27,947 INFO L276 IsEmpty]: Start isEmpty. Operand 5862 states and 9926 transitions. [2022-01-10 12:12:27,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-10 12:12:27,959 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:27,959 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] [2022-01-10 12:12:27,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 12:12:27,959 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:12:27,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:27,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1901602129, now seen corresponding path program 1 times [2022-01-10 12:12:27,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:27,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123891658] [2022-01-10 12:12:27,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:27,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:28,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:28,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:28,138 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:28,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123891658] [2022-01-10 12:12:28,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123891658] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:28,138 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:28,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 12:12:28,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754695275] [2022-01-10 12:12:28,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:28,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 12:12:28,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:28,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 12:12:28,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 12:12:28,140 INFO L87 Difference]: Start difference. First operand 5862 states and 9926 transitions. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:30,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:30,397 INFO L93 Difference]: Finished difference Result 29864 states and 50176 transitions. [2022-01-10 12:12:30,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 12:12:30,397 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-01-10 12:12:30,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:30,489 INFO L225 Difference]: With dead ends: 29864 [2022-01-10 12:12:30,489 INFO L226 Difference]: Without dead ends: 27766 [2022-01-10 12:12:30,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-10 12:12:30,505 INFO L933 BasicCegarLoop]: 1739 mSDtfsCounter, 6765 mSDsluCounter, 5358 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6765 SdHoareTripleChecker+Valid, 7097 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 12:12:30,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6765 Valid, 7097 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 12:12:30,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27766 states. [2022-01-10 12:12:31,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27766 to 11424. [2022-01-10 12:12:31,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11424 states, 11420 states have (on average 1.6961471103327495) internal successors, (19370), 11423 states have internal predecessors, (19370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:31,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11424 states to 11424 states and 19370 transitions. [2022-01-10 12:12:31,647 INFO L78 Accepts]: Start accepts. Automaton has 11424 states and 19370 transitions. Word has length 97 [2022-01-10 12:12:31,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:12:31,648 INFO L470 AbstractCegarLoop]: Abstraction has 11424 states and 19370 transitions. [2022-01-10 12:12:31,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:31,649 INFO L276 IsEmpty]: Start isEmpty. Operand 11424 states and 19370 transitions. [2022-01-10 12:12:31,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-10 12:12:31,672 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:31,673 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] [2022-01-10 12:12:31,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 12:12:31,673 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:12:31,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:31,674 INFO L85 PathProgramCache]: Analyzing trace with hash 990082704, now seen corresponding path program 1 times [2022-01-10 12:12:31,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:31,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265574358] [2022-01-10 12:12:31,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:31,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:31,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:31,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:31,838 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:31,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265574358] [2022-01-10 12:12:31,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265574358] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:31,839 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:31,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:12:31,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328396170] [2022-01-10 12:12:31,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:31,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:12:31,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:31,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:12:31,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:12:31,841 INFO L87 Difference]: Start difference. First operand 11424 states and 19370 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:32,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:32,754 INFO L93 Difference]: Finished difference Result 11424 states and 19370 transitions. [2022-01-10 12:12:32,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:12:32,754 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-01-10 12:12:32,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:32,773 INFO L225 Difference]: With dead ends: 11424 [2022-01-10 12:12:32,774 INFO L226 Difference]: Without dead ends: 7366 [2022-01-10 12:12:32,785 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 12:12:32,786 INFO L933 BasicCegarLoop]: 938 mSDtfsCounter, 868 mSDsluCounter, 1875 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 868 SdHoareTripleChecker+Valid, 2813 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:12:32,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [868 Valid, 2813 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:12:32,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7366 states. [2022-01-10 12:12:33,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7366 to 5910. [2022-01-10 12:12:33,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5910 states, 5909 states have (on average 1.7703503130817397) internal successors, (10461), 5909 states have internal predecessors, (10461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:33,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5910 states to 5910 states and 10461 transitions. [2022-01-10 12:12:33,254 INFO L78 Accepts]: Start accepts. Automaton has 5910 states and 10461 transitions. Word has length 97 [2022-01-10 12:12:33,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:12:33,255 INFO L470 AbstractCegarLoop]: Abstraction has 5910 states and 10461 transitions. [2022-01-10 12:12:33,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:33,255 INFO L276 IsEmpty]: Start isEmpty. Operand 5910 states and 10461 transitions. [2022-01-10 12:12:33,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-10 12:12:33,270 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:33,270 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] [2022-01-10 12:12:33,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 12:12:33,271 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:12:33,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:33,272 INFO L85 PathProgramCache]: Analyzing trace with hash 140669718, now seen corresponding path program 1 times [2022-01-10 12:12:33,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:33,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298934439] [2022-01-10 12:12:33,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:33,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:33,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:33,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:33,356 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:33,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298934439] [2022-01-10 12:12:33,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298934439] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:33,356 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:33,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:12:33,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596191556] [2022-01-10 12:12:33,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:33,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:12:33,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:33,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:12:33,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:12:33,358 INFO L87 Difference]: Start difference. First operand 5910 states and 10461 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 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) [2022-01-10 12:12:33,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:33,816 INFO L93 Difference]: Finished difference Result 7078 states and 12383 transitions. [2022-01-10 12:12:33,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:12:33,816 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 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 [2022-01-10 12:12:33,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:33,834 INFO L225 Difference]: With dead ends: 7078 [2022-01-10 12:12:33,834 INFO L226 Difference]: Without dead ends: 5974 [2022-01-10 12:12:33,840 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:12:33,841 INFO L933 BasicCegarLoop]: 805 mSDtfsCounter, 206 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 1422 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:12:33,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 1422 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:12:33,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5974 states. [2022-01-10 12:12:34,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5974 to 5910. [2022-01-10 12:12:34,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5910 states, 5909 states have (on average 1.7601963107124725) internal successors, (10401), 5909 states have internal predecessors, (10401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:34,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5910 states to 5910 states and 10401 transitions. [2022-01-10 12:12:34,330 INFO L78 Accepts]: Start accepts. Automaton has 5910 states and 10401 transitions. Word has length 99 [2022-01-10 12:12:34,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:12:34,331 INFO L470 AbstractCegarLoop]: Abstraction has 5910 states and 10401 transitions. [2022-01-10 12:12:34,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 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) [2022-01-10 12:12:34,331 INFO L276 IsEmpty]: Start isEmpty. Operand 5910 states and 10401 transitions. [2022-01-10 12:12:34,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-01-10 12:12:34,345 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:34,345 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:12:34,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 12:12:34,345 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:12:34,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:34,346 INFO L85 PathProgramCache]: Analyzing trace with hash 848374421, now seen corresponding path program 1 times [2022-01-10 12:12:34,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:34,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31922546] [2022-01-10 12:12:34,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:34,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:34,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:34,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:34,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:34,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31922546] [2022-01-10 12:12:34,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31922546] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:34,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:34,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:12:34,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644638485] [2022-01-10 12:12:34,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:34,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:12:34,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:34,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:12:34,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:12:34,467 INFO L87 Difference]: Start difference. First operand 5910 states and 10401 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 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) [2022-01-10 12:12:35,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:35,284 INFO L93 Difference]: Finished difference Result 17386 states and 30679 transitions. [2022-01-10 12:12:35,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 12:12:35,285 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 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 [2022-01-10 12:12:35,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:35,309 INFO L225 Difference]: With dead ends: 17386 [2022-01-10 12:12:35,309 INFO L226 Difference]: Without dead ends: 11526 [2022-01-10 12:12:35,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 12:12:35,327 INFO L933 BasicCegarLoop]: 1441 mSDtfsCounter, 2244 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2244 SdHoareTripleChecker+Valid, 2163 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:12:35,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2244 Valid, 2163 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:12:35,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11526 states. [2022-01-10 12:12:35,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11526 to 5910. [2022-01-10 12:12:35,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5910 states, 5909 states have (on average 1.7598578439668302) internal successors, (10399), 5909 states have internal predecessors, (10399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:35,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5910 states to 5910 states and 10399 transitions. [2022-01-10 12:12:35,775 INFO L78 Accepts]: Start accepts. Automaton has 5910 states and 10399 transitions. Word has length 100 [2022-01-10 12:12:35,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:12:35,775 INFO L470 AbstractCegarLoop]: Abstraction has 5910 states and 10399 transitions. [2022-01-10 12:12:35,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 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) [2022-01-10 12:12:35,776 INFO L276 IsEmpty]: Start isEmpty. Operand 5910 states and 10399 transitions. [2022-01-10 12:12:35,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-10 12:12:35,789 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:35,790 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] [2022-01-10 12:12:35,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 12:12:35,790 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:12:35,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:35,791 INFO L85 PathProgramCache]: Analyzing trace with hash -73405521, now seen corresponding path program 1 times [2022-01-10 12:12:35,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:35,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713244332] [2022-01-10 12:12:35,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:35,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:35,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:35,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:35,930 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:35,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713244332] [2022-01-10 12:12:35,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713244332] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:35,932 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:35,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:12:35,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941128335] [2022-01-10 12:12:35,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:35,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:12:35,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:35,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:12:35,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:12:35,934 INFO L87 Difference]: Start difference. First operand 5910 states and 10399 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) [2022-01-10 12:12:36,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:36,707 INFO L93 Difference]: Finished difference Result 13238 states and 23133 transitions. [2022-01-10 12:12:36,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 12:12:36,708 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 [2022-01-10 12:12:36,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:36,728 INFO L225 Difference]: With dead ends: 13238 [2022-01-10 12:12:36,729 INFO L226 Difference]: Without dead ends: 11734 [2022-01-10 12:12:36,735 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 12:12:36,736 INFO L933 BasicCegarLoop]: 842 mSDtfsCounter, 730 mSDsluCounter, 2396 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 3238 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:12:36,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [730 Valid, 3238 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:12:36,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11734 states. [2022-01-10 12:12:37,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11734 to 10230. [2022-01-10 12:12:37,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10230 states, 10229 states have (on average 1.776419982402972) internal successors, (18171), 10229 states have internal predecessors, (18171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:37,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10230 states to 10230 states and 18171 transitions. [2022-01-10 12:12:37,534 INFO L78 Accepts]: Start accepts. Automaton has 10230 states and 18171 transitions. Word has length 101 [2022-01-10 12:12:37,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:12:37,535 INFO L470 AbstractCegarLoop]: Abstraction has 10230 states and 18171 transitions. [2022-01-10 12:12:37,535 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) [2022-01-10 12:12:37,535 INFO L276 IsEmpty]: Start isEmpty. Operand 10230 states and 18171 transitions. [2022-01-10 12:12:37,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-01-10 12:12:37,565 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:37,565 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] [2022-01-10 12:12:37,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 12:12:37,565 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:12:37,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:37,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1248662221, now seen corresponding path program 1 times [2022-01-10 12:12:37,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:37,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51928797] [2022-01-10 12:12:37,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:37,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:37,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:37,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:37,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51928797] [2022-01-10 12:12:37,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51928797] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:37,733 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:37,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:12:37,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611394229] [2022-01-10 12:12:37,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:37,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:12:37,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:37,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:12:37,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:12:37,735 INFO L87 Difference]: Start difference. First operand 10230 states and 18171 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 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) [2022-01-10 12:12:38,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:38,966 INFO L93 Difference]: Finished difference Result 21838 states and 38637 transitions. [2022-01-10 12:12:38,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:12:38,966 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 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 [2022-01-10 12:12:38,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:39,006 INFO L225 Difference]: With dead ends: 21838 [2022-01-10 12:12:39,006 INFO L226 Difference]: Without dead ends: 20374 [2022-01-10 12:12:39,016 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 12:12:39,016 INFO L933 BasicCegarLoop]: 764 mSDtfsCounter, 727 mSDsluCounter, 2240 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 727 SdHoareTripleChecker+Valid, 3004 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:12:39,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [727 Valid, 3004 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:12:39,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20374 states. [2022-01-10 12:12:40,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20374 to 18890. [2022-01-10 12:12:40,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18890 states, 18889 states have (on average 1.7891365344909735) internal successors, (33795), 18889 states have internal predecessors, (33795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:40,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18890 states to 18890 states and 33795 transitions. [2022-01-10 12:12:40,263 INFO L78 Accepts]: Start accepts. Automaton has 18890 states and 33795 transitions. Word has length 102 [2022-01-10 12:12:40,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:12:40,263 INFO L470 AbstractCegarLoop]: Abstraction has 18890 states and 33795 transitions. [2022-01-10 12:12:40,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 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) [2022-01-10 12:12:40,264 INFO L276 IsEmpty]: Start isEmpty. Operand 18890 states and 33795 transitions. [2022-01-10 12:12:40,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-01-10 12:12:40,306 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:40,306 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] [2022-01-10 12:12:40,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 12:12:40,307 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:12:40,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:40,307 INFO L85 PathProgramCache]: Analyzing trace with hash 2112296479, now seen corresponding path program 1 times [2022-01-10 12:12:40,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:40,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366683063] [2022-01-10 12:12:40,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:40,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:40,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:40,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:40,435 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:40,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366683063] [2022-01-10 12:12:40,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366683063] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:40,435 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:40,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:12:40,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036085839] [2022-01-10 12:12:40,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:40,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:12:40,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:40,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:12:40,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:12:40,437 INFO L87 Difference]: Start difference. First operand 18890 states and 33795 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 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) [2022-01-10 12:12:42,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:42,107 INFO L93 Difference]: Finished difference Result 39158 states and 69885 transitions. [2022-01-10 12:12:42,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:12:42,109 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 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 [2022-01-10 12:12:42,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:42,180 INFO L225 Difference]: With dead ends: 39158 [2022-01-10 12:12:42,180 INFO L226 Difference]: Without dead ends: 37510 [2022-01-10 12:12:42,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 12:12:42,197 INFO L933 BasicCegarLoop]: 764 mSDtfsCounter, 726 mSDsluCounter, 2240 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 3004 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:12:42,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [726 Valid, 3004 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:12:42,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37510 states. [2022-01-10 12:12:43,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37510 to 36046. [2022-01-10 12:12:44,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36046 states, 36045 states have (on average 1.7967263143293106) internal successors, (64763), 36045 states have internal predecessors, (64763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:44,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36046 states to 36046 states and 64763 transitions. [2022-01-10 12:12:44,112 INFO L78 Accepts]: Start accepts. Automaton has 36046 states and 64763 transitions. Word has length 103 [2022-01-10 12:12:44,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:12:44,112 INFO L470 AbstractCegarLoop]: Abstraction has 36046 states and 64763 transitions. [2022-01-10 12:12:44,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 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) [2022-01-10 12:12:44,112 INFO L276 IsEmpty]: Start isEmpty. Operand 36046 states and 64763 transitions. [2022-01-10 12:12:44,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-01-10 12:12:44,171 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:44,171 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:12:44,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 12:12:44,171 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:12:44,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:44,172 INFO L85 PathProgramCache]: Analyzing trace with hash 804162011, now seen corresponding path program 1 times [2022-01-10 12:12:44,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:44,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938931847] [2022-01-10 12:12:44,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:44,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:44,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:44,255 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:44,256 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:44,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938931847] [2022-01-10 12:12:44,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938931847] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:44,256 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:44,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:12:44,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786120059] [2022-01-10 12:12:44,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:44,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:12:44,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:44,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:12:44,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:12:44,258 INFO L87 Difference]: Start difference. First operand 36046 states and 64763 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:47,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:47,678 INFO L93 Difference]: Finished difference Result 101310 states and 181789 transitions. [2022-01-10 12:12:47,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:12:47,679 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 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 125 [2022-01-10 12:12:47,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:47,823 INFO L225 Difference]: With dead ends: 101310 [2022-01-10 12:12:47,824 INFO L226 Difference]: Without dead ends: 65350 [2022-01-10 12:12:47,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:12:47,876 INFO L933 BasicCegarLoop]: 765 mSDtfsCounter, 714 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 714 SdHoareTripleChecker+Valid, 1432 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:12:47,876 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [714 Valid, 1432 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:12:48,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65350 states. [2022-01-10 12:12:51,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65350 to 62798. [2022-01-10 12:12:51,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62798 states, 62797 states have (on average 1.8010255266971351) internal successors, (113099), 62797 states have internal predecessors, (113099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:51,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62798 states to 62798 states and 113099 transitions. [2022-01-10 12:12:51,670 INFO L78 Accepts]: Start accepts. Automaton has 62798 states and 113099 transitions. Word has length 125 [2022-01-10 12:12:51,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:12:51,671 INFO L470 AbstractCegarLoop]: Abstraction has 62798 states and 113099 transitions. [2022-01-10 12:12:51,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:51,671 INFO L276 IsEmpty]: Start isEmpty. Operand 62798 states and 113099 transitions. [2022-01-10 12:12:51,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-01-10 12:12:51,770 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:51,770 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:12:51,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-10 12:12:51,770 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:12:51,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:51,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1118084626, now seen corresponding path program 1 times [2022-01-10 12:12:51,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:51,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915709450] [2022-01-10 12:12:51,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:51,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:51,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:51,994 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:51,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:51,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915709450] [2022-01-10 12:12:51,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915709450] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:51,995 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:51,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:12:51,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522418389] [2022-01-10 12:12:51,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:51,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:12:51,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:51,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:12:51,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:12:51,997 INFO L87 Difference]: Start difference. First operand 62798 states and 113099 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:57,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:57,988 INFO L93 Difference]: Finished difference Result 187966 states and 338573 transitions. [2022-01-10 12:12:57,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:12:57,988 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2022-01-10 12:12:57,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:58,308 INFO L225 Difference]: With dead ends: 187966 [2022-01-10 12:12:58,309 INFO L226 Difference]: Without dead ends: 125254 [2022-01-10 12:12:58,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:12:58,608 INFO L933 BasicCegarLoop]: 765 mSDtfsCounter, 712 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 712 SdHoareTripleChecker+Valid, 1526 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:12:58,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [712 Valid, 1526 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:12:58,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125254 states. [2022-01-10 12:13:04,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125254 to 122702. [2022-01-10 12:13:04,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122702 states, 122701 states have (on average 1.8045411202842683) internal successors, (221419), 122701 states have internal predecessors, (221419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:05,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122702 states to 122702 states and 221419 transitions. [2022-01-10 12:13:05,248 INFO L78 Accepts]: Start accepts. Automaton has 122702 states and 221419 transitions. Word has length 126 [2022-01-10 12:13:05,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:13:05,249 INFO L470 AbstractCegarLoop]: Abstraction has 122702 states and 221419 transitions. [2022-01-10 12:13:05,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:05,249 INFO L276 IsEmpty]: Start isEmpty. Operand 122702 states and 221419 transitions. [2022-01-10 12:13:05,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-01-10 12:13:05,381 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:13:05,381 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:13:05,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-10 12:13:05,381 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:13:05,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:13:05,382 INFO L85 PathProgramCache]: Analyzing trace with hash -745003340, now seen corresponding path program 1 times [2022-01-10 12:13:05,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:13:05,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921843552] [2022-01-10 12:13:05,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:13:05,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:13:05,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:13:05,461 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:13:05,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:13:05,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921843552] [2022-01-10 12:13:05,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921843552] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:13:05,462 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:13:05,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:13:05,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435617213] [2022-01-10 12:13:05,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:13:05,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:13:05,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:13:05,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:13:05,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:13:05,464 INFO L87 Difference]: Start difference. First operand 122702 states and 221419 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)