/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec11_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 23:51:31,428 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 23:51:31,429 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 23:51:31,487 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 23:51:31,488 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 23:51:31,489 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 23:51:31,489 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 23:51:31,493 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 23:51:31,494 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 23:51:31,497 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 23:51:31,498 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 23:51:31,499 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 23:51:31,499 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 23:51:31,500 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 23:51:31,501 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 23:51:31,504 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 23:51:31,504 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 23:51:31,505 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 23:51:31,506 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 23:51:31,510 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 23:51:31,511 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 23:51:31,512 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 23:51:31,513 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 23:51:31,514 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 23:51:31,518 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 23:51:31,518 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 23:51:31,518 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 23:51:31,519 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 23:51:31,520 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 23:51:31,520 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 23:51:31,520 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 23:51:31,521 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 23:51:31,522 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 23:51:31,522 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 23:51:31,523 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 23:51:31,523 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 23:51:31,524 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 23:51:31,524 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 23:51:31,524 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 23:51:31,524 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 23:51:31,525 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 23:51:31,526 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-10 23:51:31,548 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 23:51:31,549 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 23:51:31,549 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 23:51:31,549 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 23:51:31,550 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 23:51:31,550 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 23:51:31,551 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 23:51:31,551 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 23:51:31,551 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 23:51:31,551 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 23:51:31,551 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 23:51:31,552 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 23:51:31,552 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 23:51:31,552 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 23:51:31,552 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 23:51:31,552 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 23:51:31,552 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 23:51:31,552 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 23:51:31,552 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 23:51:31,552 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 23:51:31,552 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 23:51:31,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:51:31,553 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 23:51:31,553 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 23:51:31,553 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 23:51:31,554 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 23:51:31,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 23:51:31,554 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 23:51:31,554 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 23:51:31,554 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 23:51:31,554 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 23:51:31,554 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 23:51:31,555 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 23:51:31,555 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 23:51:31,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 23:51:31,752 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 23:51:31,754 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 23:51:31,754 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 23:51:31,755 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 23:51:31,756 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product35.cil.c [2022-01-10 23:51:31,794 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d675bacb0/81ce9c94391d4624b445c3d7e137e8fc/FLAG0c0f7925a [2022-01-10 23:51:32,217 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 23:51:32,218 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec11_product35.cil.c [2022-01-10 23:51:32,232 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d675bacb0/81ce9c94391d4624b445c3d7e137e8fc/FLAG0c0f7925a [2022-01-10 23:51:32,240 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d675bacb0/81ce9c94391d4624b445c3d7e137e8fc [2022-01-10 23:51:32,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 23:51:32,243 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 23:51:32,244 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 23:51:32,244 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 23:51:32,246 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 23:51:32,246 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:51:32" (1/1) ... [2022-01-10 23:51:32,247 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@139e6070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:51:32, skipping insertion in model container [2022-01-10 23:51:32,247 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:51:32" (1/1) ... [2022-01-10 23:51:32,266 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 23:51:32,317 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:51:32,619 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_spec11_product35.cil.c[61136,61149] [2022-01-10 23:51:32,633 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:51:32,642 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 23:51:32,653 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:51:32,701 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_spec11_product35.cil.c[61136,61149] [2022-01-10 23:51:32,707 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:51:32,712 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 23:51:32,797 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_spec11_product35.cil.c[61136,61149] [2022-01-10 23:51:32,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:51:32,834 INFO L208 MainTranslator]: Completed translation [2022-01-10 23:51:32,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:51:32 WrapperNode [2022-01-10 23:51:32,835 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 23:51:32,836 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 23:51:32,836 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 23:51:32,836 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 23:51:32,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:51:32" (1/1) ... [2022-01-10 23:51:32,889 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:51:32" (1/1) ... [2022-01-10 23:51:32,995 INFO L137 Inliner]: procedures = 139, calls = 246, calls flagged for inlining = 151, calls inlined = 468, statements flattened = 6964 [2022-01-10 23:51:32,995 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 23:51:32,996 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 23:51:32,996 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 23:51:32,996 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 23:51:33,002 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:51:32" (1/1) ... [2022-01-10 23:51:33,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:51:32" (1/1) ... [2022-01-10 23:51:33,010 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:51:32" (1/1) ... [2022-01-10 23:51:33,010 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:51:32" (1/1) ... [2022-01-10 23:51:33,048 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:51:32" (1/1) ... [2022-01-10 23:51:33,071 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:51:32" (1/1) ... [2022-01-10 23:51:33,080 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:51:32" (1/1) ... [2022-01-10 23:51:33,094 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 23:51:33,095 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 23:51:33,095 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 23:51:33,095 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 23:51:33,107 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:51:32" (1/1) ... [2022-01-10 23:51:33,112 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:51:33,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 23:51:33,130 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 23:51:33,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 23:51:33,160 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-01-10 23:51:33,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 23:51:33,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 23:51:33,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 23:51:33,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 23:51:33,367 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 23:51:33,368 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 23:51:35,400 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 23:51:35,424 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 23:51:35,425 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 23:51:35,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:51:35 BoogieIcfgContainer [2022-01-10 23:51:35,428 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 23:51:35,429 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 23:51:35,429 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 23:51:35,430 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 23:51:35,432 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:51:35" (1/1) ... [2022-01-10 23:51:35,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:51:35 BasicIcfg [2022-01-10 23:51:35,836 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 23:51:35,837 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 23:51:35,837 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 23:51:35,839 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 23:51:35,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 11:51:32" (1/4) ... [2022-01-10 23:51:35,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10e799aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:51:35, skipping insertion in model container [2022-01-10 23:51:35,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:51:32" (2/4) ... [2022-01-10 23:51:35,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10e799aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:51:35, skipping insertion in model container [2022-01-10 23:51:35,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:51:35" (3/4) ... [2022-01-10 23:51:35,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10e799aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 11:51:35, skipping insertion in model container [2022-01-10 23:51:35,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:51:35" (4/4) ... [2022-01-10 23:51:35,841 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec11_product35.cil.cTransformedIcfg [2022-01-10 23:51:35,845 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 23:51:35,845 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-01-10 23:51:35,890 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 23:51:35,895 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 23:51:35,896 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-10 23:51:35,923 INFO L276 IsEmpty]: Start isEmpty. Operand has 1445 states, 1438 states have (on average 1.6592489568845619) internal successors, (2386), 1444 states have internal predecessors, (2386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:35,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-01-10 23:51:35,941 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:51:35,941 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:51:35,942 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:51:35,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:51:35,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1356443677, now seen corresponding path program 1 times [2022-01-10 23:51:35,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:51:35,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127181890] [2022-01-10 23:51:35,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:51:35,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:51:36,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:51:36,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:51:36,266 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:51:36,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127181890] [2022-01-10 23:51:36,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127181890] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:51:36,267 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:51:36,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 23:51:36,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749999776] [2022-01-10 23:51:36,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:51:36,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 23:51:36,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:51:36,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 23:51:36,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 23:51:36,339 INFO L87 Difference]: Start difference. First operand has 1445 states, 1438 states have (on average 1.6592489568845619) internal successors, (2386), 1444 states have internal predecessors, (2386), 0 states have call successors, (0), 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 36.5) internal successors, (73), 2 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:36,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:51:36,408 INFO L93 Difference]: Finished difference Result 2576 states and 4217 transitions. [2022-01-10 23:51:36,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 23:51:36,410 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-01-10 23:51:36,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:51:36,425 INFO L225 Difference]: With dead ends: 2576 [2022-01-10 23:51:36,426 INFO L226 Difference]: Without dead ends: 1311 [2022-01-10 23:51:36,431 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 23:51:36,433 INFO L933 BasicCegarLoop]: 2372 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, 2372 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:51:36,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2372 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:51:36,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1311 states. [2022-01-10 23:51:36,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1311 to 1311. [2022-01-10 23:51:36,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1311 states, 1305 states have (on average 1.671264367816092) internal successors, (2181), 1310 states have internal predecessors, (2181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:36,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1311 states to 1311 states and 2181 transitions. [2022-01-10 23:51:36,503 INFO L78 Accepts]: Start accepts. Automaton has 1311 states and 2181 transitions. Word has length 73 [2022-01-10 23:51:36,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:51:36,503 INFO L470 AbstractCegarLoop]: Abstraction has 1311 states and 2181 transitions. [2022-01-10 23:51:36,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:36,503 INFO L276 IsEmpty]: Start isEmpty. Operand 1311 states and 2181 transitions. [2022-01-10 23:51:36,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-01-10 23:51:36,506 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:51:36,506 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:51:36,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 23:51:36,507 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:51:36,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:51:36,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1981104173, now seen corresponding path program 1 times [2022-01-10 23:51:36,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:51:36,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256159438] [2022-01-10 23:51:36,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:51:36,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:51:36,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:51:36,736 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 23:51:36,737 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:51:36,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256159438] [2022-01-10 23:51:36,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256159438] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:51:36,737 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:51:36,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:51:36,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634627110] [2022-01-10 23:51:36,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:51:36,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:51:36,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:51:36,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:51:36,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:51:36,739 INFO L87 Difference]: Start difference. First operand 1311 states and 2181 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:36,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:51:36,850 INFO L93 Difference]: Finished difference Result 2603 states and 4334 transitions. [2022-01-10 23:51:36,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:51:36,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-01-10 23:51:36,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:51:36,857 INFO L225 Difference]: With dead ends: 2603 [2022-01-10 23:51:36,858 INFO L226 Difference]: Without dead ends: 1311 [2022-01-10 23:51:36,862 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:51:36,863 INFO L933 BasicCegarLoop]: 2159 mSDtfsCounter, 2156 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2156 SdHoareTripleChecker+Valid, 2172 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:51:36,864 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2156 Valid, 2172 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:51:36,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1311 states. [2022-01-10 23:51:36,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1311 to 1311. [2022-01-10 23:51:36,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1311 states, 1305 states have (on average 1.6697318007662836) internal successors, (2179), 1310 states have internal predecessors, (2179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:36,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1311 states to 1311 states and 2179 transitions. [2022-01-10 23:51:36,918 INFO L78 Accepts]: Start accepts. Automaton has 1311 states and 2179 transitions. Word has length 74 [2022-01-10 23:51:36,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:51:36,919 INFO L470 AbstractCegarLoop]: Abstraction has 1311 states and 2179 transitions. [2022-01-10 23:51:36,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:36,921 INFO L276 IsEmpty]: Start isEmpty. Operand 1311 states and 2179 transitions. [2022-01-10 23:51:36,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-01-10 23:51:36,926 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:51:36,927 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:51:36,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 23:51:36,927 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:51:36,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:51:36,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1558139309, now seen corresponding path program 1 times [2022-01-10 23:51:36,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:51:36,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505853041] [2022-01-10 23:51:36,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:51:36,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:51:37,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:51:37,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:51:37,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:51:37,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505853041] [2022-01-10 23:51:37,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505853041] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:51:37,094 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:51:37,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:51:37,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113926079] [2022-01-10 23:51:37,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:51:37,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:51:37,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:51:37,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:51:37,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:51:37,096 INFO L87 Difference]: Start difference. First operand 1311 states and 2179 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:37,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:51:37,457 INFO L93 Difference]: Finished difference Result 6423 states and 10691 transitions. [2022-01-10 23:51:37,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 23:51:37,457 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-01-10 23:51:37,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:51:37,474 INFO L225 Difference]: With dead ends: 6423 [2022-01-10 23:51:37,474 INFO L226 Difference]: Without dead ends: 5136 [2022-01-10 23:51:37,480 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 23:51:37,482 INFO L933 BasicCegarLoop]: 4281 mSDtfsCounter, 10678 mSDsluCounter, 6409 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10678 SdHoareTripleChecker+Valid, 10690 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:51:37,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10678 Valid, 10690 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:51:37,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5136 states. [2022-01-10 23:51:37,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5136 to 1311. [2022-01-10 23:51:37,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1311 states, 1305 states have (on average 1.6689655172413793) internal successors, (2178), 1310 states have internal predecessors, (2178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:37,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1311 states to 1311 states and 2178 transitions. [2022-01-10 23:51:37,615 INFO L78 Accepts]: Start accepts. Automaton has 1311 states and 2178 transitions. Word has length 76 [2022-01-10 23:51:37,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:51:37,616 INFO L470 AbstractCegarLoop]: Abstraction has 1311 states and 2178 transitions. [2022-01-10 23:51:37,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:37,616 INFO L276 IsEmpty]: Start isEmpty. Operand 1311 states and 2178 transitions. [2022-01-10 23:51:37,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-10 23:51:37,618 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:51:37,618 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] [2022-01-10 23:51:37,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 23:51:37,619 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:51:37,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:51:37,619 INFO L85 PathProgramCache]: Analyzing trace with hash -2070845891, now seen corresponding path program 1 times [2022-01-10 23:51:37,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:51:37,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595327063] [2022-01-10 23:51:37,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:51:37,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:51:37,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:51:37,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:51:37,757 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:51:37,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595327063] [2022-01-10 23:51:37,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595327063] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:51:37,757 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:51:37,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:51:37,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689019146] [2022-01-10 23:51:37,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:51:37,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:51:37,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:51:37,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:51:37,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:51:37,760 INFO L87 Difference]: Start difference. First operand 1311 states and 2178 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:37,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:51:37,849 INFO L93 Difference]: Finished difference Result 2607 states and 4334 transitions. [2022-01-10 23:51:37,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:51:37,850 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-01-10 23:51:37,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:51:37,855 INFO L225 Difference]: With dead ends: 2607 [2022-01-10 23:51:37,855 INFO L226 Difference]: Without dead ends: 1325 [2022-01-10 23:51:37,859 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:51:37,865 INFO L933 BasicCegarLoop]: 2192 mSDtfsCounter, 2157 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2157 SdHoareTripleChecker+Valid, 2214 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:51:37,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2157 Valid, 2214 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:51:37,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1325 states. [2022-01-10 23:51:37,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1325 to 1311. [2022-01-10 23:51:37,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1311 states, 1305 states have (on average 1.668199233716475) internal successors, (2177), 1310 states have internal predecessors, (2177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:37,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1311 states to 1311 states and 2177 transitions. [2022-01-10 23:51:37,930 INFO L78 Accepts]: Start accepts. Automaton has 1311 states and 2177 transitions. Word has length 77 [2022-01-10 23:51:37,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:51:37,930 INFO L470 AbstractCegarLoop]: Abstraction has 1311 states and 2177 transitions. [2022-01-10 23:51:37,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:37,930 INFO L276 IsEmpty]: Start isEmpty. Operand 1311 states and 2177 transitions. [2022-01-10 23:51:37,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-10 23:51:37,931 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:51:37,931 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:51:37,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 23:51:37,932 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:51:37,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:51:37,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1826442796, now seen corresponding path program 1 times [2022-01-10 23:51:37,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:51:37,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970278249] [2022-01-10 23:51:37,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:51:37,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:51:38,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:51:38,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:51:38,051 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:51:38,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970278249] [2022-01-10 23:51:38,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970278249] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:51:38,051 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:51:38,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:51:38,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243691594] [2022-01-10 23:51:38,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:51:38,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:51:38,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:51:38,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:51:38,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:51:38,052 INFO L87 Difference]: Start difference. First operand 1311 states and 2177 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:38,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:51:38,281 INFO L93 Difference]: Finished difference Result 3867 states and 6431 transitions. [2022-01-10 23:51:38,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 23:51:38,282 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-01-10 23:51:38,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:51:38,289 INFO L225 Difference]: With dead ends: 3867 [2022-01-10 23:51:38,289 INFO L226 Difference]: Without dead ends: 2590 [2022-01-10 23:51:38,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 23:51:38,291 INFO L933 BasicCegarLoop]: 2186 mSDtfsCounter, 10601 mSDsluCounter, 2200 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10601 SdHoareTripleChecker+Valid, 4386 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 23:51:38,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10601 Valid, 4386 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:51:38,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2590 states. [2022-01-10 23:51:38,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2590 to 1311. [2022-01-10 23:51:38,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1311 states, 1305 states have (on average 1.6666666666666667) internal successors, (2175), 1310 states have internal predecessors, (2175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:38,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1311 states to 1311 states and 2175 transitions. [2022-01-10 23:51:38,371 INFO L78 Accepts]: Start accepts. Automaton has 1311 states and 2175 transitions. Word has length 78 [2022-01-10 23:51:38,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:51:38,371 INFO L470 AbstractCegarLoop]: Abstraction has 1311 states and 2175 transitions. [2022-01-10 23:51:38,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:38,372 INFO L276 IsEmpty]: Start isEmpty. Operand 1311 states and 2175 transitions. [2022-01-10 23:51:38,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-01-10 23:51:38,375 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:51:38,375 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:51:38,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 23:51:38,375 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:51:38,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:51:38,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1885825391, now seen corresponding path program 1 times [2022-01-10 23:51:38,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:51:38,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650297501] [2022-01-10 23:51:38,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:51:38,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:51:38,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:51:38,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:51:38,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:51:38,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650297501] [2022-01-10 23:51:38,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650297501] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:51:38,490 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:51:38,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 23:51:38,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294115806] [2022-01-10 23:51:38,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:51:38,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 23:51:38,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:51:38,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 23:51:38,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 23:51:38,492 INFO L87 Difference]: Start difference. First operand 1311 states and 2175 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:39,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:51:39,455 INFO L93 Difference]: Finished difference Result 11200 states and 18320 transitions. [2022-01-10 23:51:39,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 23:51:39,456 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-01-10 23:51:39,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:51:39,486 INFO L225 Difference]: With dead ends: 11200 [2022-01-10 23:51:39,486 INFO L226 Difference]: Without dead ends: 10216 [2022-01-10 23:51:39,491 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-01-10 23:51:39,491 INFO L933 BasicCegarLoop]: 4417 mSDtfsCounter, 19170 mSDsluCounter, 15531 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19170 SdHoareTripleChecker+Valid, 19948 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 23:51:39,492 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19170 Valid, 19948 Invalid, 284 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [34 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 23:51:39,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10216 states. [2022-01-10 23:51:39,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10216 to 2173. [2022-01-10 23:51:39,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2173 states, 2167 states have (on average 1.668666359021689) internal successors, (3616), 2172 states have internal predecessors, (3616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:39,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2173 states to 2173 states and 3616 transitions. [2022-01-10 23:51:39,674 INFO L78 Accepts]: Start accepts. Automaton has 2173 states and 3616 transitions. Word has length 80 [2022-01-10 23:51:39,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:51:39,674 INFO L470 AbstractCegarLoop]: Abstraction has 2173 states and 3616 transitions. [2022-01-10 23:51:39,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:39,674 INFO L276 IsEmpty]: Start isEmpty. Operand 2173 states and 3616 transitions. [2022-01-10 23:51:39,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-10 23:51:39,676 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:51:39,676 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:51:39,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 23:51:39,677 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:51:39,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:51:39,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1199890962, now seen corresponding path program 1 times [2022-01-10 23:51:39,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:51:39,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707913367] [2022-01-10 23:51:39,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:51:39,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:51:39,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:51:39,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:51:39,781 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:51:39,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707913367] [2022-01-10 23:51:39,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707913367] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:51:39,781 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:51:39,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:51:39,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715856407] [2022-01-10 23:51:39,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:51:39,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:51:39,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:51:39,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:51:39,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:51:39,783 INFO L87 Difference]: Start difference. First operand 2173 states and 3616 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:40,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:51:40,055 INFO L93 Difference]: Finished difference Result 5042 states and 8254 transitions. [2022-01-10 23:51:40,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 23:51:40,056 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-10 23:51:40,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:51:40,068 INFO L225 Difference]: With dead ends: 5042 [2022-01-10 23:51:40,068 INFO L226 Difference]: Without dead ends: 3495 [2022-01-10 23:51:40,072 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 23:51:40,072 INFO L933 BasicCegarLoop]: 2157 mSDtfsCounter, 8159 mSDsluCounter, 2473 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8159 SdHoareTripleChecker+Valid, 4630 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:51:40,073 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8159 Valid, 4630 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:51:40,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3495 states. [2022-01-10 23:51:40,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3495 to 2173. [2022-01-10 23:51:40,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2173 states, 2167 states have (on average 1.6668204891555145) internal successors, (3612), 2172 states have internal predecessors, (3612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:40,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2173 states to 2173 states and 3612 transitions. [2022-01-10 23:51:40,224 INFO L78 Accepts]: Start accepts. Automaton has 2173 states and 3612 transitions. Word has length 81 [2022-01-10 23:51:40,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:51:40,225 INFO L470 AbstractCegarLoop]: Abstraction has 2173 states and 3612 transitions. [2022-01-10 23:51:40,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:40,225 INFO L276 IsEmpty]: Start isEmpty. Operand 2173 states and 3612 transitions. [2022-01-10 23:51:40,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-10 23:51:40,227 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:51:40,227 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:51:40,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 23:51:40,227 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:51:40,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:51:40,227 INFO L85 PathProgramCache]: Analyzing trace with hash 950123843, now seen corresponding path program 1 times [2022-01-10 23:51:40,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:51:40,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810484878] [2022-01-10 23:51:40,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:51:40,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:51:40,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:51:40,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:51:40,296 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:51:40,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810484878] [2022-01-10 23:51:40,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810484878] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:51:40,296 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:51:40,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:51:40,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261823753] [2022-01-10 23:51:40,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:51:40,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:51:40,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:51:40,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:51:40,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:51:40,297 INFO L87 Difference]: Start difference. First operand 2173 states and 3612 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:40,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:51:40,563 INFO L93 Difference]: Finished difference Result 6396 states and 10665 transitions. [2022-01-10 23:51:40,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 23:51:40,564 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-10 23:51:40,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:51:40,573 INFO L225 Difference]: With dead ends: 6396 [2022-01-10 23:51:40,573 INFO L226 Difference]: Without dead ends: 4260 [2022-01-10 23:51:40,577 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 23:51:40,577 INFO L933 BasicCegarLoop]: 4249 mSDtfsCounter, 6456 mSDsluCounter, 2126 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6456 SdHoareTripleChecker+Valid, 6375 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:51:40,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6456 Valid, 6375 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:51:40,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4260 states. [2022-01-10 23:51:40,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4260 to 2173. [2022-01-10 23:51:40,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2173 states, 2167 states have (on average 1.6658975542224272) internal successors, (3610), 2172 states have internal predecessors, (3610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:40,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2173 states to 2173 states and 3610 transitions. [2022-01-10 23:51:40,733 INFO L78 Accepts]: Start accepts. Automaton has 2173 states and 3610 transitions. Word has length 81 [2022-01-10 23:51:40,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:51:40,734 INFO L470 AbstractCegarLoop]: Abstraction has 2173 states and 3610 transitions. [2022-01-10 23:51:40,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:40,734 INFO L276 IsEmpty]: Start isEmpty. Operand 2173 states and 3610 transitions. [2022-01-10 23:51:40,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-01-10 23:51:40,736 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:51:40,736 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:51:40,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 23:51:40,736 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:51:40,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:51:40,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1868649827, now seen corresponding path program 1 times [2022-01-10 23:51:40,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:51:40,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975152800] [2022-01-10 23:51:40,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:51:40,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:51:40,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:51:40,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:51:40,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:51:40,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975152800] [2022-01-10 23:51:40,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975152800] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:51:40,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:51:40,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 23:51:40,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669635659] [2022-01-10 23:51:40,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:51:40,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 23:51:40,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:51:40,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 23:51:40,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-01-10 23:51:40,850 INFO L87 Difference]: Start difference. First operand 2173 states and 3610 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:42,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:51:42,869 INFO L93 Difference]: Finished difference Result 12606 states and 20292 transitions. [2022-01-10 23:51:42,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-10 23:51:42,869 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-01-10 23:51:42,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:51:42,889 INFO L225 Difference]: With dead ends: 12606 [2022-01-10 23:51:42,889 INFO L226 Difference]: Without dead ends: 11175 [2022-01-10 23:51:42,892 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 23:51:42,893 INFO L933 BasicCegarLoop]: 3948 mSDtfsCounter, 19380 mSDsluCounter, 18331 mSDsCounter, 0 mSdLazyCounter, 1168 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19380 SdHoareTripleChecker+Valid, 22279 SdHoareTripleChecker+Invalid, 1233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-10 23:51:42,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19380 Valid, 22279 Invalid, 1233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1168 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-10 23:51:42,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11175 states. [2022-01-10 23:51:43,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11175 to 4091. [2022-01-10 23:51:43,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4091 states, 4085 states have (on average 1.6700122399020807) internal successors, (6822), 4090 states have internal predecessors, (6822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:43,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4091 states to 4091 states and 6822 transitions. [2022-01-10 23:51:43,238 INFO L78 Accepts]: Start accepts. Automaton has 4091 states and 6822 transitions. Word has length 82 [2022-01-10 23:51:43,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:51:43,239 INFO L470 AbstractCegarLoop]: Abstraction has 4091 states and 6822 transitions. [2022-01-10 23:51:43,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:43,239 INFO L276 IsEmpty]: Start isEmpty. Operand 4091 states and 6822 transitions. [2022-01-10 23:51:43,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-10 23:51:43,242 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:51:43,242 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:51:43,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 23:51:43,242 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:51:43,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:51:43,243 INFO L85 PathProgramCache]: Analyzing trace with hash 207966292, now seen corresponding path program 1 times [2022-01-10 23:51:43,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:51:43,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265618730] [2022-01-10 23:51:43,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:51:43,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:51:43,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:51:43,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:51:43,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:51:43,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265618730] [2022-01-10 23:51:43,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265618730] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:51:43,304 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:51:43,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 23:51:43,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088012226] [2022-01-10 23:51:43,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:51:43,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 23:51:43,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:51:43,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 23:51:43,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 23:51:43,305 INFO L87 Difference]: Start difference. First operand 4091 states and 6822 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:43,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:51:43,711 INFO L93 Difference]: Finished difference Result 6954 states and 11431 transitions. [2022-01-10 23:51:43,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 23:51:43,712 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-01-10 23:51:43,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:51:43,720 INFO L225 Difference]: With dead ends: 6954 [2022-01-10 23:51:43,720 INFO L226 Difference]: Without dead ends: 5395 [2022-01-10 23:51:43,722 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:51:43,722 INFO L933 BasicCegarLoop]: 2165 mSDtfsCounter, 4525 mSDsluCounter, 2401 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4525 SdHoareTripleChecker+Valid, 4566 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:51:43,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4525 Valid, 4566 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:51:43,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5395 states. [2022-01-10 23:51:43,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5395 to 4091. [2022-01-10 23:51:44,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4091 states, 4085 states have (on average 1.6695226438188495) internal successors, (6820), 4090 states have internal predecessors, (6820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:44,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4091 states to 4091 states and 6820 transitions. [2022-01-10 23:51:44,010 INFO L78 Accepts]: Start accepts. Automaton has 4091 states and 6820 transitions. Word has length 83 [2022-01-10 23:51:44,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:51:44,011 INFO L470 AbstractCegarLoop]: Abstraction has 4091 states and 6820 transitions. [2022-01-10 23:51:44,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:44,012 INFO L276 IsEmpty]: Start isEmpty. Operand 4091 states and 6820 transitions. [2022-01-10 23:51:44,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-10 23:51:44,017 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:51:44,017 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:51:44,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 23:51:44,017 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:51:44,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:51:44,018 INFO L85 PathProgramCache]: Analyzing trace with hash -975381005, now seen corresponding path program 1 times [2022-01-10 23:51:44,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:51:44,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405520266] [2022-01-10 23:51:44,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:51:44,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:51:44,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:51:44,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:51:44,109 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:51:44,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405520266] [2022-01-10 23:51:44,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405520266] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:51:44,110 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:51:44,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 23:51:44,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934528389] [2022-01-10 23:51:44,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:51:44,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:51:44,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:51:44,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:51:44,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:51:44,111 INFO L87 Difference]: Start difference. First operand 4091 states and 6820 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:45,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:51:45,639 INFO L93 Difference]: Finished difference Result 14616 states and 23566 transitions. [2022-01-10 23:51:45,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 23:51:45,639 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-01-10 23:51:45,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:51:45,657 INFO L225 Difference]: With dead ends: 14616 [2022-01-10 23:51:45,657 INFO L226 Difference]: Without dead ends: 12135 [2022-01-10 23:51:45,661 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 23:51:45,661 INFO L933 BasicCegarLoop]: 6478 mSDtfsCounter, 6262 mSDsluCounter, 12008 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6262 SdHoareTripleChecker+Valid, 18486 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 23:51:45,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6262 Valid, 18486 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 560 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 23:51:45,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12135 states. [2022-01-10 23:51:46,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12135 to 5578. [2022-01-10 23:51:46,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5578 states, 5572 states have (on average 1.648959081119885) internal successors, (9188), 5577 states have internal predecessors, (9188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:46,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5578 states to 5578 states and 9188 transitions. [2022-01-10 23:51:46,069 INFO L78 Accepts]: Start accepts. Automaton has 5578 states and 9188 transitions. Word has length 83 [2022-01-10 23:51:46,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:51:46,069 INFO L470 AbstractCegarLoop]: Abstraction has 5578 states and 9188 transitions. [2022-01-10 23:51:46,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:46,070 INFO L276 IsEmpty]: Start isEmpty. Operand 5578 states and 9188 transitions. [2022-01-10 23:51:46,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-10 23:51:46,074 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:51:46,074 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:51:46,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 23:51:46,074 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:51:46,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:51:46,074 INFO L85 PathProgramCache]: Analyzing trace with hash 5447313, now seen corresponding path program 1 times [2022-01-10 23:51:46,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:51:46,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826957426] [2022-01-10 23:51:46,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:51:46,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:51:46,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:51:46,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:51:46,179 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:51:46,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826957426] [2022-01-10 23:51:46,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826957426] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:51:46,179 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:51:46,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 23:51:46,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437065674] [2022-01-10 23:51:46,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:51:46,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 23:51:46,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:51:46,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 23:51:46,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-01-10 23:51:46,180 INFO L87 Difference]: Start difference. First operand 5578 states and 9188 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:49,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:51:49,200 INFO L93 Difference]: Finished difference Result 23852 states and 38336 transitions. [2022-01-10 23:51:49,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-10 23:51:49,200 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-01-10 23:51:49,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:51:49,230 INFO L225 Difference]: With dead ends: 23852 [2022-01-10 23:51:49,230 INFO L226 Difference]: Without dead ends: 21131 [2022-01-10 23:51:49,239 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=153, Invalid=309, Unknown=0, NotChecked=0, Total=462 [2022-01-10 23:51:49,240 INFO L933 BasicCegarLoop]: 3388 mSDtfsCounter, 22537 mSDsluCounter, 17024 mSDsCounter, 0 mSdLazyCounter, 1096 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22537 SdHoareTripleChecker+Valid, 20412 SdHoareTripleChecker+Invalid, 1165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-10 23:51:49,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22537 Valid, 20412 Invalid, 1165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1096 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-10 23:51:49,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21131 states. [2022-01-10 23:51:50,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21131 to 9486. [2022-01-10 23:51:50,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9486 states, 9480 states have (on average 1.655379746835443) internal successors, (15693), 9485 states have internal predecessors, (15693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:50,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9486 states to 9486 states and 15693 transitions. [2022-01-10 23:51:50,082 INFO L78 Accepts]: Start accepts. Automaton has 9486 states and 15693 transitions. Word has length 83 [2022-01-10 23:51:50,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:51:50,082 INFO L470 AbstractCegarLoop]: Abstraction has 9486 states and 15693 transitions. [2022-01-10 23:51:50,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:50,082 INFO L276 IsEmpty]: Start isEmpty. Operand 9486 states and 15693 transitions. [2022-01-10 23:51:50,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-10 23:51:50,088 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:51:50,089 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:51:50,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 23:51:50,089 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:51:50,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:51:50,089 INFO L85 PathProgramCache]: Analyzing trace with hash 356247250, now seen corresponding path program 1 times [2022-01-10 23:51:50,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:51:50,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099263697] [2022-01-10 23:51:50,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:51:50,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:51:50,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:51:50,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:51:50,175 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:51:50,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099263697] [2022-01-10 23:51:50,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099263697] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:51:50,175 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:51:50,175 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 23:51:50,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358682876] [2022-01-10 23:51:50,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:51:50,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 23:51:50,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:51:50,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 23:51:50,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 23:51:50,176 INFO L87 Difference]: Start difference. First operand 9486 states and 15693 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:53,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:51:53,271 INFO L93 Difference]: Finished difference Result 35104 states and 57720 transitions. [2022-01-10 23:51:53,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 23:51:53,271 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-01-10 23:51:53,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:51:53,317 INFO L225 Difference]: With dead ends: 35104 [2022-01-10 23:51:53,317 INFO L226 Difference]: Without dead ends: 31568 [2022-01-10 23:51:53,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-01-10 23:51:53,328 INFO L933 BasicCegarLoop]: 5192 mSDtfsCounter, 13437 mSDsluCounter, 15536 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13437 SdHoareTripleChecker+Valid, 20728 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 23:51:53,328 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13437 Valid, 20728 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 23:51:53,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31568 states. [2022-01-10 23:51:54,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31568 to 10794. [2022-01-10 23:51:54,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10794 states, 10788 states have (on average 1.6523915461624026) internal successors, (17826), 10793 states have internal predecessors, (17826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:54,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10794 states to 10794 states and 17826 transitions. [2022-01-10 23:51:54,374 INFO L78 Accepts]: Start accepts. Automaton has 10794 states and 17826 transitions. Word has length 83 [2022-01-10 23:51:54,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:51:54,375 INFO L470 AbstractCegarLoop]: Abstraction has 10794 states and 17826 transitions. [2022-01-10 23:51:54,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:54,375 INFO L276 IsEmpty]: Start isEmpty. Operand 10794 states and 17826 transitions. [2022-01-10 23:51:54,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-10 23:51:54,381 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:51:54,381 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:51:54,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 23:51:54,381 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:51:54,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:51:54,382 INFO L85 PathProgramCache]: Analyzing trace with hash 539491650, now seen corresponding path program 1 times [2022-01-10 23:51:54,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:51:54,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865508684] [2022-01-10 23:51:54,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:51:54,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:51:54,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:51:54,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:51:54,504 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:51:54,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865508684] [2022-01-10 23:51:54,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865508684] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:51:54,505 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:51:54,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 23:51:54,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194757917] [2022-01-10 23:51:54,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:51:54,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:51:54,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:51:54,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:51:54,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:51:54,506 INFO L87 Difference]: Start difference. First operand 10794 states and 17826 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:00,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:52:00,379 INFO L93 Difference]: Finished difference Result 58074 states and 93222 transitions. [2022-01-10 23:52:00,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 23:52:00,387 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-01-10 23:52:00,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:52:00,474 INFO L225 Difference]: With dead ends: 58074 [2022-01-10 23:52:00,474 INFO L226 Difference]: Without dead ends: 51274 [2022-01-10 23:52:00,491 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 23:52:00,491 INFO L933 BasicCegarLoop]: 2280 mSDtfsCounter, 10928 mSDsluCounter, 9682 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10928 SdHoareTripleChecker+Valid, 11962 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 23:52:00,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10928 Valid, 11962 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 23:52:00,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51274 states. [2022-01-10 23:52:02,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51274 to 18962. [2022-01-10 23:52:02,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18962 states, 18956 states have (on average 1.6159527326440177) internal successors, (30632), 18961 states have internal predecessors, (30632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:02,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18962 states to 18962 states and 30632 transitions. [2022-01-10 23:52:02,861 INFO L78 Accepts]: Start accepts. Automaton has 18962 states and 30632 transitions. Word has length 83 [2022-01-10 23:52:02,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:52:02,862 INFO L470 AbstractCegarLoop]: Abstraction has 18962 states and 30632 transitions. [2022-01-10 23:52:02,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:02,862 INFO L276 IsEmpty]: Start isEmpty. Operand 18962 states and 30632 transitions. [2022-01-10 23:52:02,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-01-10 23:52:02,869 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:52:02,869 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:52:02,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 23:52:02,870 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:52:02,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:52:02,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1076064439, now seen corresponding path program 1 times [2022-01-10 23:52:02,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:52:02,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072954670] [2022-01-10 23:52:02,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:52:02,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:52:02,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:52:02,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:52:02,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:52:02,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072954670] [2022-01-10 23:52:02,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072954670] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:52:02,963 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:52:02,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:52:02,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988446248] [2022-01-10 23:52:02,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:52:02,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:52:02,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:52:02,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:52:02,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:52:02,964 INFO L87 Difference]: Start difference. First operand 18962 states and 30632 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:12,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:52:12,295 INFO L93 Difference]: Finished difference Result 86010 states and 136494 transitions. [2022-01-10 23:52:12,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 23:52:12,303 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-01-10 23:52:12,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:52:12,433 INFO L225 Difference]: With dead ends: 86010 [2022-01-10 23:52:12,434 INFO L226 Difference]: Without dead ends: 73262 [2022-01-10 23:52:12,462 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 23:52:12,463 INFO L933 BasicCegarLoop]: 3575 mSDtfsCounter, 7648 mSDsluCounter, 10267 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7648 SdHoareTripleChecker+Valid, 13842 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 23:52:12,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7648 Valid, 13842 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 23:52:12,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73262 states. [2022-01-10 23:52:15,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73262 to 19130. [2022-01-10 23:52:15,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19130 states, 19124 states have (on average 1.610541727672035) internal successors, (30800), 19129 states have internal predecessors, (30800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:15,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19130 states to 19130 states and 30800 transitions. [2022-01-10 23:52:15,095 INFO L78 Accepts]: Start accepts. Automaton has 19130 states and 30800 transitions. Word has length 85 [2022-01-10 23:52:15,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:52:15,095 INFO L470 AbstractCegarLoop]: Abstraction has 19130 states and 30800 transitions. [2022-01-10 23:52:15,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:15,095 INFO L276 IsEmpty]: Start isEmpty. Operand 19130 states and 30800 transitions. [2022-01-10 23:52:15,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-01-10 23:52:15,102 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:52:15,102 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:52:15,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 23:52:15,102 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:52:15,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:52:15,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1592784824, now seen corresponding path program 1 times [2022-01-10 23:52:15,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:52:15,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206509837] [2022-01-10 23:52:15,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:52:15,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:52:15,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:52:15,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:52:15,194 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:52:15,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206509837] [2022-01-10 23:52:15,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206509837] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:52:15,195 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:52:15,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 23:52:15,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718643062] [2022-01-10 23:52:15,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:52:15,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 23:52:15,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:52:15,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 23:52:15,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 23:52:15,196 INFO L87 Difference]: Start difference. First operand 19130 states and 30800 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:26,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:52:26,601 INFO L93 Difference]: Finished difference Result 86542 states and 136004 transitions. [2022-01-10 23:52:26,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-10 23:52:26,602 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-01-10 23:52:26,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:52:26,713 INFO L225 Difference]: With dead ends: 86542 [2022-01-10 23:52:26,713 INFO L226 Difference]: Without dead ends: 71466 [2022-01-10 23:52:26,742 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2022-01-10 23:52:26,743 INFO L933 BasicCegarLoop]: 2927 mSDtfsCounter, 11756 mSDsluCounter, 9884 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11756 SdHoareTripleChecker+Valid, 12811 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 23:52:26,743 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11756 Valid, 12811 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 23:52:26,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71466 states. [2022-01-10 23:52:30,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71466 to 21410. [2022-01-10 23:52:30,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21410 states, 21404 states have (on average 1.6062418239581386) internal successors, (34380), 21409 states have internal predecessors, (34380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:30,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21410 states to 21410 states and 34380 transitions. [2022-01-10 23:52:30,098 INFO L78 Accepts]: Start accepts. Automaton has 21410 states and 34380 transitions. Word has length 85 [2022-01-10 23:52:30,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:52:30,098 INFO L470 AbstractCegarLoop]: Abstraction has 21410 states and 34380 transitions. [2022-01-10 23:52:30,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:30,098 INFO L276 IsEmpty]: Start isEmpty. Operand 21410 states and 34380 transitions. [2022-01-10 23:52:30,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-10 23:52:30,106 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:52:30,106 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:52:30,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 23:52:30,106 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:52:30,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:52:30,107 INFO L85 PathProgramCache]: Analyzing trace with hash 737055673, now seen corresponding path program 1 times [2022-01-10 23:52:30,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:52:30,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185382047] [2022-01-10 23:52:30,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:52:30,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:52:30,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:52:30,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:52:30,181 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:52:30,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185382047] [2022-01-10 23:52:30,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185382047] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:52:30,182 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:52:30,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:52:30,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665248390] [2022-01-10 23:52:30,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:52:30,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:52:30,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:52:30,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:52:30,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:52:30,215 INFO L87 Difference]: Start difference. First operand 21410 states and 34380 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:38,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:52:38,606 INFO L93 Difference]: Finished difference Result 73676 states and 116416 transitions. [2022-01-10 23:52:38,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 23:52:38,607 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2022-01-10 23:52:38,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:52:38,710 INFO L225 Difference]: With dead ends: 73676 [2022-01-10 23:52:38,710 INFO L226 Difference]: Without dead ends: 57032 [2022-01-10 23:52:38,735 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 23:52:38,735 INFO L933 BasicCegarLoop]: 2526 mSDtfsCounter, 8158 mSDsluCounter, 5515 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8158 SdHoareTripleChecker+Valid, 8041 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 23:52:38,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8158 Valid, 8041 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 23:52:38,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57032 states.