/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec6_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 05:46:25,937 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 05:46:25,947 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 05:46:25,989 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 05:46:25,990 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 05:46:25,991 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 05:46:25,992 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 05:46:26,021 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 05:46:26,024 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 05:46:26,030 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 05:46:26,031 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 05:46:26,032 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 05:46:26,032 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 05:46:26,033 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 05:46:26,033 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 05:46:26,034 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 05:46:26,035 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 05:46:26,035 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 05:46:26,037 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 05:46:26,038 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 05:46:26,041 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 05:46:26,043 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 05:46:26,046 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 05:46:26,048 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 05:46:26,056 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 05:46:26,057 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 05:46:26,057 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 05:46:26,059 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 05:46:26,059 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 05:46:26,060 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 05:46:26,060 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 05:46:26,061 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 05:46:26,062 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 05:46:26,063 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 05:46:26,064 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 05:46:26,064 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 05:46:26,065 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 05:46:26,065 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 05:46:26,065 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 05:46:26,066 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 05:46:26,067 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 05:46:26,068 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 05:46:26,106 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 05:46:26,106 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 05:46:26,107 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 05:46:26,107 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 05:46:26,109 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 05:46:26,109 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 05:46:26,109 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 05:46:26,109 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 05:46:26,109 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 05:46:26,109 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 05:46:26,110 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 05:46:26,110 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 05:46:26,110 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 05:46:26,111 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 05:46:26,111 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 05:46:26,111 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 05:46:26,111 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 05:46:26,111 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 05:46:26,111 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 05:46:26,111 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 05:46:26,111 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 05:46:26,112 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:46:26,112 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 05:46:26,112 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 05:46:26,112 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 05:46:26,112 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 05:46:26,112 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 05:46:26,112 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 05:46:26,112 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 05:46:26,113 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 05:46:26,113 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 05:46:26,113 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 05:46:26,114 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 05:46:26,114 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 05:46:26,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 05:46:26,348 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 05:46:26,350 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 05:46:26,351 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 05:46:26,351 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 05:46:26,353 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product34.cil.c [2022-01-11 05:46:26,420 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db9a10b77/bc2946adeb5d4bae82f406099e9ed5aa/FLAG9fea21409 [2022-01-11 05:46:26,956 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 05:46:26,957 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product34.cil.c [2022-01-11 05:46:26,975 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db9a10b77/bc2946adeb5d4bae82f406099e9ed5aa/FLAG9fea21409 [2022-01-11 05:46:27,429 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db9a10b77/bc2946adeb5d4bae82f406099e9ed5aa [2022-01-11 05:46:27,431 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 05:46:27,432 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 05:46:27,433 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 05:46:27,433 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 05:46:27,441 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 05:46:27,442 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:46:27" (1/1) ... [2022-01-11 05:46:27,443 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6851a5bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:46:27, skipping insertion in model container [2022-01-11 05:46:27,443 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:46:27" (1/1) ... [2022-01-11 05:46:27,448 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 05:46:27,521 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:46:27,794 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_spec6_product34.cil.c[11485,11498] [2022-01-11 05:46:28,023 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:46:28,034 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 05:46:28,046 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:46:28,060 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_spec6_product34.cil.c[11485,11498] [2022-01-11 05:46:28,124 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:46:28,134 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 05:46:28,161 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_spec6_product34.cil.c[11485,11498] [2022-01-11 05:46:28,215 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:46:28,254 INFO L208 MainTranslator]: Completed translation [2022-01-11 05:46:28,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:46:28 WrapperNode [2022-01-11 05:46:28,254 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 05:46:28,255 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 05:46:28,256 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 05:46:28,256 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 05:46:28,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:46:28" (1/1) ... [2022-01-11 05:46:28,310 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:46:28" (1/1) ... [2022-01-11 05:46:28,436 INFO L137 Inliner]: procedures = 137, calls = 244, calls flagged for inlining = 147, calls inlined = 442, statements flattened = 6859 [2022-01-11 05:46:28,437 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 05:46:28,438 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 05:46:28,438 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 05:46:28,438 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 05:46:28,445 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:46:28" (1/1) ... [2022-01-11 05:46:28,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:46:28" (1/1) ... [2022-01-11 05:46:28,465 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:46:28" (1/1) ... [2022-01-11 05:46:28,465 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:46:28" (1/1) ... [2022-01-11 05:46:28,528 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:46:28" (1/1) ... [2022-01-11 05:46:28,565 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:46:28" (1/1) ... [2022-01-11 05:46:28,584 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:46:28" (1/1) ... [2022-01-11 05:46:28,609 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 05:46:28,610 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 05:46:28,611 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 05:46:28,611 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 05:46:28,613 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:46:28" (1/1) ... [2022-01-11 05:46:28,620 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:46:28,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:46:28,641 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-11 05:46:28,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-11 05:46:28,706 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-01-11 05:46:28,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 05:46:28,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 05:46:28,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 05:46:28,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 05:46:29,010 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 05:46:29,011 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 05:46:31,552 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 05:46:31,571 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 05:46:31,571 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 05:46:31,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:46:31 BoogieIcfgContainer [2022-01-11 05:46:31,574 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 05:46:31,575 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 05:46:31,575 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 05:46:31,576 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 05:46:31,579 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:46:31" (1/1) ... [2022-01-11 05:46:32,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:46:32 BasicIcfg [2022-01-11 05:46:32,080 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 05:46:32,082 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 05:46:32,082 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 05:46:32,085 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 05:46:32,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:46:27" (1/4) ... [2022-01-11 05:46:32,085 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ce62e22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:46:32, skipping insertion in model container [2022-01-11 05:46:32,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:46:28" (2/4) ... [2022-01-11 05:46:32,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ce62e22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:46:32, skipping insertion in model container [2022-01-11 05:46:32,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:46:31" (3/4) ... [2022-01-11 05:46:32,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ce62e22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:46:32, skipping insertion in model container [2022-01-11 05:46:32,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:46:32" (4/4) ... [2022-01-11 05:46:32,088 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec6_product34.cil.cTransformedIcfg [2022-01-11 05:46:32,092 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 05:46:32,093 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-01-11 05:46:32,177 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 05:46:32,183 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-11 05:46:32,183 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-11 05:46:32,215 INFO L276 IsEmpty]: Start isEmpty. Operand has 1410 states, 1403 states have (on average 1.66928011404134) internal successors, (2342), 1409 states have internal predecessors, (2342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:46:32,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-11 05:46:32,227 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:46:32,228 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:46:32,228 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)] === [2022-01-11 05:46:32,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:46:32,233 INFO L85 PathProgramCache]: Analyzing trace with hash 511517549, now seen corresponding path program 1 times [2022-01-11 05:46:32,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:46:32,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673486594] [2022-01-11 05:46:32,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:46:32,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:46:32,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:46:32,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:46:32,575 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:46:32,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673486594] [2022-01-11 05:46:32,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673486594] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:46:32,576 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:46:32,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 05:46:32,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251927809] [2022-01-11 05:46:32,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:46:32,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-11 05:46:32,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:46:32,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-11 05:46:32,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 05:46:32,609 INFO L87 Difference]: Start difference. First operand has 1410 states, 1403 states have (on average 1.66928011404134) internal successors, (2342), 1409 states have internal predecessors, (2342), 0 states have call successors, (0), 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 32.0) internal successors, (64), 2 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:46:32,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:46:32,798 INFO L93 Difference]: Finished difference Result 2511 states and 4137 transitions. [2022-01-11 05:46:32,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-11 05:46:32,801 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-01-11 05:46:32,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:46:32,823 INFO L225 Difference]: With dead ends: 2511 [2022-01-11 05:46:32,824 INFO L226 Difference]: Without dead ends: 1170 [2022-01-11 05:46:32,831 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 [2022-01-11 05:46:32,834 INFO L933 BasicCegarLoop]: 2328 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, 2328 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 [2022-01-11 05:46:32,835 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2328 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:46:32,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1170 states. [2022-01-11 05:46:32,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1170 to 1170. [2022-01-11 05:46:32,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1170 states, 1164 states have (on average 1.679553264604811) internal successors, (1955), 1169 states have internal predecessors, (1955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:46:32,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1170 states to 1170 states and 1955 transitions. [2022-01-11 05:46:32,949 INFO L78 Accepts]: Start accepts. Automaton has 1170 states and 1955 transitions. Word has length 64 [2022-01-11 05:46:32,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:46:32,949 INFO L470 AbstractCegarLoop]: Abstraction has 1170 states and 1955 transitions. [2022-01-11 05:46:32,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:46:32,950 INFO L276 IsEmpty]: Start isEmpty. Operand 1170 states and 1955 transitions. [2022-01-11 05:46:32,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-11 05:46:32,963 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:46:32,963 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:46:32,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 05:46:32,964 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)] === [2022-01-11 05:46:32,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:46:32,965 INFO L85 PathProgramCache]: Analyzing trace with hash 113907579, now seen corresponding path program 1 times [2022-01-11 05:46:32,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:46:32,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149589191] [2022-01-11 05:46:32,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:46:32,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:46:33,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:46:33,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:46:33,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:46:33,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149589191] [2022-01-11 05:46:33,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149589191] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:46:33,229 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:46:33,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:46:33,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347229122] [2022-01-11 05:46:33,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:46:33,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:46:33,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:46:33,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:46:33,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:46:33,240 INFO L87 Difference]: Start difference. First operand 1170 states and 1955 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:46:33,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:46:33,359 INFO L93 Difference]: Finished difference Result 2321 states and 3882 transitions. [2022-01-11 05:46:33,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:46:33,359 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-01-11 05:46:33,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:46:33,365 INFO L225 Difference]: With dead ends: 2321 [2022-01-11 05:46:33,365 INFO L226 Difference]: Without dead ends: 1170 [2022-01-11 05:46:33,367 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 [2022-01-11 05:46:33,369 INFO L933 BasicCegarLoop]: 1934 mSDtfsCounter, 1930 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1930 SdHoareTripleChecker+Valid, 1947 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:46:33,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1930 Valid, 1947 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:46:33,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1170 states. [2022-01-11 05:46:33,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1170 to 1170. [2022-01-11 05:46:33,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1170 states, 1164 states have (on average 1.6778350515463918) internal successors, (1953), 1169 states have internal predecessors, (1953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:46:33,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1170 states to 1170 states and 1953 transitions. [2022-01-11 05:46:33,458 INFO L78 Accepts]: Start accepts. Automaton has 1170 states and 1953 transitions. Word has length 65 [2022-01-11 05:46:33,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:46:33,459 INFO L470 AbstractCegarLoop]: Abstraction has 1170 states and 1953 transitions. [2022-01-11 05:46:33,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:46:33,459 INFO L276 IsEmpty]: Start isEmpty. Operand 1170 states and 1953 transitions. [2022-01-11 05:46:33,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-11 05:46:33,463 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:46:33,463 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:46:33,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 05:46:33,464 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)] === [2022-01-11 05:46:33,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:46:33,464 INFO L85 PathProgramCache]: Analyzing trace with hash -223034629, now seen corresponding path program 1 times [2022-01-11 05:46:33,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:46:33,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106964479] [2022-01-11 05:46:33,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:46:33,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:46:33,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:46:33,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:46:33,586 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:46:33,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106964479] [2022-01-11 05:46:33,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106964479] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:46:33,586 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:46:33,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:46:33,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485043036] [2022-01-11 05:46:33,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:46:33,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:46:33,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:46:33,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:46:33,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:46:33,588 INFO L87 Difference]: Start difference. First operand 1170 states and 1953 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:46:33,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:46:33,970 INFO L93 Difference]: Finished difference Result 5718 states and 9561 transitions. [2022-01-11 05:46:33,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-11 05:46:33,971 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-01-11 05:46:33,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:46:33,991 INFO L225 Difference]: With dead ends: 5718 [2022-01-11 05:46:33,991 INFO L226 Difference]: Without dead ends: 4572 [2022-01-11 05:46:33,997 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 [2022-01-11 05:46:34,001 INFO L933 BasicCegarLoop]: 3829 mSDtfsCounter, 9548 mSDsluCounter, 5731 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9548 SdHoareTripleChecker+Valid, 9560 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 [2022-01-11 05:46:34,002 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9548 Valid, 9560 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:46:34,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4572 states. [2022-01-11 05:46:34,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4572 to 1170. [2022-01-11 05:46:34,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1170 states, 1164 states have (on average 1.6769759450171822) internal successors, (1952), 1169 states have internal predecessors, (1952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:46:34,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1170 states to 1170 states and 1952 transitions. [2022-01-11 05:46:34,157 INFO L78 Accepts]: Start accepts. Automaton has 1170 states and 1952 transitions. Word has length 67 [2022-01-11 05:46:34,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:46:34,158 INFO L470 AbstractCegarLoop]: Abstraction has 1170 states and 1952 transitions. [2022-01-11 05:46:34,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:46:34,158 INFO L276 IsEmpty]: Start isEmpty. Operand 1170 states and 1952 transitions. [2022-01-11 05:46:34,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-01-11 05:46:34,161 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:46:34,161 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:46:34,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 05:46:34,162 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)] === [2022-01-11 05:46:34,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:46:34,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1205877293, now seen corresponding path program 1 times [2022-01-11 05:46:34,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:46:34,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714998583] [2022-01-11 05:46:34,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:46:34,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:46:34,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:46:34,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:46:34,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:46:34,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714998583] [2022-01-11 05:46:34,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714998583] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:46:34,344 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:46:34,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:46:34,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223784323] [2022-01-11 05:46:34,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:46:34,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:46:34,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:46:34,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:46:34,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:46:34,347 INFO L87 Difference]: Start difference. First operand 1170 states and 1952 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:46:34,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:46:34,477 INFO L93 Difference]: Finished difference Result 2325 states and 3882 transitions. [2022-01-11 05:46:34,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:46:34,478 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-01-11 05:46:34,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:46:34,485 INFO L225 Difference]: With dead ends: 2325 [2022-01-11 05:46:34,485 INFO L226 Difference]: Without dead ends: 1184 [2022-01-11 05:46:34,487 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:46:34,493 INFO L933 BasicCegarLoop]: 1966 mSDtfsCounter, 1931 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1931 SdHoareTripleChecker+Valid, 1988 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 [2022-01-11 05:46:34,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1931 Valid, 1988 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:46:34,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1184 states. [2022-01-11 05:46:34,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1184 to 1170. [2022-01-11 05:46:34,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1170 states, 1164 states have (on average 1.6761168384879725) internal successors, (1951), 1169 states have internal predecessors, (1951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:46:34,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1170 states to 1170 states and 1951 transitions. [2022-01-11 05:46:34,572 INFO L78 Accepts]: Start accepts. Automaton has 1170 states and 1951 transitions. Word has length 68 [2022-01-11 05:46:34,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:46:34,572 INFO L470 AbstractCegarLoop]: Abstraction has 1170 states and 1951 transitions. [2022-01-11 05:46:34,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:46:34,572 INFO L276 IsEmpty]: Start isEmpty. Operand 1170 states and 1951 transitions. [2022-01-11 05:46:34,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-01-11 05:46:34,574 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:46:34,574 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] [2022-01-11 05:46:34,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 05:46:34,575 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)] === [2022-01-11 05:46:34,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:46:34,576 INFO L85 PathProgramCache]: Analyzing trace with hash 262346908, now seen corresponding path program 1 times [2022-01-11 05:46:34,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:46:34,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996869170] [2022-01-11 05:46:34,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:46:34,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:46:34,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:46:34,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:46:34,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:46:34,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996869170] [2022-01-11 05:46:34,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996869170] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:46:34,705 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:46:34,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:46:34,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476666824] [2022-01-11 05:46:34,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:46:34,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:46:34,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:46:34,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:46:34,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:46:34,706 INFO L87 Difference]: Start difference. First operand 1170 states and 1951 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:46:34,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:46:34,997 INFO L93 Difference]: Finished difference Result 3444 states and 5753 transitions. [2022-01-11 05:46:34,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:46:34,997 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2022-01-11 05:46:34,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:46:35,007 INFO L225 Difference]: With dead ends: 3444 [2022-01-11 05:46:35,008 INFO L226 Difference]: Without dead ends: 2308 [2022-01-11 05:46:35,011 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 [2022-01-11 05:46:35,012 INFO L933 BasicCegarLoop]: 1960 mSDtfsCounter, 9471 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9471 SdHoareTripleChecker+Valid, 3934 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 [2022-01-11 05:46:35,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9471 Valid, 3934 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:46:35,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2308 states. [2022-01-11 05:46:35,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2308 to 1170. [2022-01-11 05:46:35,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1170 states, 1164 states have (on average 1.6743986254295533) internal successors, (1949), 1169 states have internal predecessors, (1949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:46:35,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1170 states to 1170 states and 1949 transitions. [2022-01-11 05:46:35,100 INFO L78 Accepts]: Start accepts. Automaton has 1170 states and 1949 transitions. Word has length 69 [2022-01-11 05:46:35,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:46:35,106 INFO L470 AbstractCegarLoop]: Abstraction has 1170 states and 1949 transitions. [2022-01-11 05:46:35,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:46:35,106 INFO L276 IsEmpty]: Start isEmpty. Operand 1170 states and 1949 transitions. [2022-01-11 05:46:35,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-01-11 05:46:35,108 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:46:35,108 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:46:35,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 05:46:35,108 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)] === [2022-01-11 05:46:35,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:46:35,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1958716153, now seen corresponding path program 1 times [2022-01-11 05:46:35,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:46:35,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404248882] [2022-01-11 05:46:35,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:46:35,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:46:35,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:46:35,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:46:35,246 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:46:35,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404248882] [2022-01-11 05:46:35,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404248882] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:46:35,246 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:46:35,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 05:46:35,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92080926] [2022-01-11 05:46:35,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:46:35,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:46:35,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:46:35,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:46:35,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:46:35,248 INFO L87 Difference]: Start difference. First operand 1170 states and 1949 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:46:36,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:46:36,426 INFO L93 Difference]: Finished difference Result 9556 states and 15670 transitions. [2022-01-11 05:46:36,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-11 05:46:36,426 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-01-11 05:46:36,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:46:36,463 INFO L225 Difference]: With dead ends: 9556 [2022-01-11 05:46:36,464 INFO L226 Difference]: Without dead ends: 8708 [2022-01-11 05:46:36,469 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 [2022-01-11 05:46:36,470 INFO L933 BasicCegarLoop]: 3757 mSDtfsCounter, 16440 mSDsluCounter, 13397 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16440 SdHoareTripleChecker+Valid, 17154 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-11 05:46:36,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16440 Valid, 17154 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-11 05:46:36,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8708 states. [2022-01-11 05:46:36,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8708 to 2012. [2022-01-11 05:46:36,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2012 states, 2006 states have (on average 1.6769690927218346) internal successors, (3364), 2011 states have internal predecessors, (3364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:46:36,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2012 states to 2012 states and 3364 transitions. [2022-01-11 05:46:36,675 INFO L78 Accepts]: Start accepts. Automaton has 2012 states and 3364 transitions. Word has length 71 [2022-01-11 05:46:36,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:46:36,676 INFO L470 AbstractCegarLoop]: Abstraction has 2012 states and 3364 transitions. [2022-01-11 05:46:36,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:46:36,676 INFO L276 IsEmpty]: Start isEmpty. Operand 2012 states and 3364 transitions. [2022-01-11 05:46:36,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-01-11 05:46:36,678 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:46:36,678 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:46:36,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 05:46:36,679 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)] === [2022-01-11 05:46:36,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:46:36,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1023385245, now seen corresponding path program 1 times [2022-01-11 05:46:36,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:46:36,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343269145] [2022-01-11 05:46:36,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:46:36,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:46:36,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:46:36,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:46:36,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:46:36,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343269145] [2022-01-11 05:46:36,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343269145] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:46:36,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:46:36,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:46:36,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99379907] [2022-01-11 05:46:36,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:46:36,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:46:36,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:46:36,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:46:36,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:46:36,810 INFO L87 Difference]: Start difference. First operand 2012 states and 3364 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:46:37,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:46:37,236 INFO L93 Difference]: Finished difference Result 4538 states and 7456 transitions. [2022-01-11 05:46:37,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:46:37,236 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-01-11 05:46:37,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:46:37,249 INFO L225 Difference]: With dead ends: 4538 [2022-01-11 05:46:37,250 INFO L226 Difference]: Without dead ends: 3142 [2022-01-11 05:46:37,255 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 [2022-01-11 05:46:37,256 INFO L933 BasicCegarLoop]: 1931 mSDtfsCounter, 6953 mSDsluCounter, 2195 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6953 SdHoareTripleChecker+Valid, 4126 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:46:37,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6953 Valid, 4126 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:46:37,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3142 states. [2022-01-11 05:46:37,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3142 to 2012. [2022-01-11 05:46:37,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2012 states, 2006 states have (on average 1.674975074775673) internal successors, (3360), 2011 states have internal predecessors, (3360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:46:37,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2012 states to 2012 states and 3360 transitions. [2022-01-11 05:46:37,422 INFO L78 Accepts]: Start accepts. Automaton has 2012 states and 3360 transitions. Word has length 72 [2022-01-11 05:46:37,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:46:37,423 INFO L470 AbstractCegarLoop]: Abstraction has 2012 states and 3360 transitions. [2022-01-11 05:46:37,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:46:37,423 INFO L276 IsEmpty]: Start isEmpty. Operand 2012 states and 3360 transitions. [2022-01-11 05:46:37,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-01-11 05:46:37,430 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:46:37,430 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:46:37,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 05:46:37,430 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)] === [2022-01-11 05:46:37,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:46:37,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1862956557, now seen corresponding path program 1 times [2022-01-11 05:46:37,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:46:37,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541648722] [2022-01-11 05:46:37,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:46:37,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:46:37,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:46:37,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:46:37,520 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:46:37,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541648722] [2022-01-11 05:46:37,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541648722] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:46:37,520 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:46:37,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:46:37,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334053232] [2022-01-11 05:46:37,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:46:37,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:46:37,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:46:37,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:46:37,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:46:37,522 INFO L87 Difference]: Start difference. First operand 2012 states and 3360 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:46:37,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:46:37,938 INFO L93 Difference]: Finished difference Result 5913 states and 9909 transitions. [2022-01-11 05:46:37,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:46:37,939 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-01-11 05:46:37,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:46:37,956 INFO L225 Difference]: With dead ends: 5913 [2022-01-11 05:46:37,956 INFO L226 Difference]: Without dead ends: 3938 [2022-01-11 05:46:37,960 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 [2022-01-11 05:46:37,961 INFO L933 BasicCegarLoop]: 3797 mSDtfsCounter, 5778 mSDsluCounter, 1900 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5778 SdHoareTripleChecker+Valid, 5697 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:46:37,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5778 Valid, 5697 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:46:37,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3938 states. [2022-01-11 05:46:38,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3938 to 2012. [2022-01-11 05:46:38,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2012 states, 2006 states have (on average 1.6739780658025922) internal successors, (3358), 2011 states have internal predecessors, (3358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:46:38,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2012 states to 2012 states and 3358 transitions. [2022-01-11 05:46:38,159 INFO L78 Accepts]: Start accepts. Automaton has 2012 states and 3358 transitions. Word has length 72 [2022-01-11 05:46:38,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:46:38,159 INFO L470 AbstractCegarLoop]: Abstraction has 2012 states and 3358 transitions. [2022-01-11 05:46:38,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:46:38,160 INFO L276 IsEmpty]: Start isEmpty. Operand 2012 states and 3358 transitions. [2022-01-11 05:46:38,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-01-11 05:46:38,162 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:46:38,162 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:46:38,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 05:46:38,163 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)] === [2022-01-11 05:46:38,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:46:38,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1208725000, now seen corresponding path program 1 times [2022-01-11 05:46:38,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:46:38,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483271463] [2022-01-11 05:46:38,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:46:38,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:46:38,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:46:38,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:46:38,336 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:46:38,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483271463] [2022-01-11 05:46:38,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483271463] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:46:38,336 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:46:38,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:46:38,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004459291] [2022-01-11 05:46:38,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:46:38,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-11 05:46:38,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:46:38,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-11 05:46:38,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:46:38,338 INFO L87 Difference]: Start difference. First operand 2012 states and 3358 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 8 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) [2022-01-11 05:46:40,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:46:40,682 INFO L93 Difference]: Finished difference Result 10750 states and 17420 transitions. [2022-01-11 05:46:40,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-11 05:46:40,682 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 8 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 [2022-01-11 05:46:40,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:46:40,711 INFO L225 Difference]: With dead ends: 10750 [2022-01-11 05:46:40,712 INFO L226 Difference]: Without dead ends: 9470 [2022-01-11 05:46:40,717 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 [2022-01-11 05:46:40,720 INFO L933 BasicCegarLoop]: 3166 mSDtfsCounter, 18274 mSDsluCounter, 15877 mSDsCounter, 0 mSdLazyCounter, 980 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18274 SdHoareTripleChecker+Valid, 19043 SdHoareTripleChecker+Invalid, 1049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-11 05:46:40,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18274 Valid, 19043 Invalid, 1049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 980 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-11 05:46:40,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9470 states. [2022-01-11 05:46:41,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9470 to 3885. [2022-01-11 05:46:41,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3885 states, 3879 states have (on average 1.6787831915442124) internal successors, (6512), 3884 states have internal predecessors, (6512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:46:41,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3885 states to 3885 states and 6512 transitions. [2022-01-11 05:46:41,265 INFO L78 Accepts]: Start accepts. Automaton has 3885 states and 6512 transitions. Word has length 73 [2022-01-11 05:46:41,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:46:41,265 INFO L470 AbstractCegarLoop]: Abstraction has 3885 states and 6512 transitions. [2022-01-11 05:46:41,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 8 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) [2022-01-11 05:46:41,265 INFO L276 IsEmpty]: Start isEmpty. Operand 3885 states and 6512 transitions. [2022-01-11 05:46:41,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-01-11 05:46:41,270 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:46:41,270 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:46:41,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 05:46:41,270 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)] === [2022-01-11 05:46:41,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:46:41,271 INFO L85 PathProgramCache]: Analyzing trace with hash -360092806, now seen corresponding path program 1 times [2022-01-11 05:46:41,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:46:41,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237656464] [2022-01-11 05:46:41,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:46:41,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:46:41,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:46:41,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:46:41,455 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:46:41,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237656464] [2022-01-11 05:46:41,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237656464] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:46:41,455 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:46:41,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:46:41,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990149562] [2022-01-11 05:46:41,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:46:41,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-11 05:46:41,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:46:41,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-11 05:46:41,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:46:41,457 INFO L87 Difference]: Start difference. First operand 3885 states and 6512 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:46:44,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:46:44,506 INFO L93 Difference]: Finished difference Result 18820 states and 30622 transitions. [2022-01-11 05:46:44,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-11 05:46:44,507 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-01-11 05:46:44,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:46:44,556 INFO L225 Difference]: With dead ends: 18820 [2022-01-11 05:46:44,556 INFO L226 Difference]: Without dead ends: 16349 [2022-01-11 05:46:44,568 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 [2022-01-11 05:46:44,569 INFO L933 BasicCegarLoop]: 3030 mSDtfsCounter, 18258 mSDsluCounter, 15172 mSDsCounter, 0 mSdLazyCounter, 975 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18258 SdHoareTripleChecker+Valid, 18202 SdHoareTripleChecker+Invalid, 1044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-11 05:46:44,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18258 Valid, 18202 Invalid, 1044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 975 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-11 05:46:44,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16349 states. [2022-01-11 05:46:45,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16349 to 7647. [2022-01-11 05:46:45,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7647 states, 7641 states have (on average 1.6810626881298258) internal successors, (12845), 7646 states have internal predecessors, (12845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:46:45,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7647 states to 7647 states and 12845 transitions. [2022-01-11 05:46:45,335 INFO L78 Accepts]: Start accepts. Automaton has 7647 states and 12845 transitions. Word has length 74 [2022-01-11 05:46:45,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:46:45,335 INFO L470 AbstractCegarLoop]: Abstraction has 7647 states and 12845 transitions. [2022-01-11 05:46:45,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:46:45,336 INFO L276 IsEmpty]: Start isEmpty. Operand 7647 states and 12845 transitions. [2022-01-11 05:46:45,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-01-11 05:46:45,342 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:46:45,342 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:46:45,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 05:46:45,343 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)] === [2022-01-11 05:46:45,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:46:45,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1896818201, now seen corresponding path program 1 times [2022-01-11 05:46:45,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:46:45,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315208848] [2022-01-11 05:46:45,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:46:45,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:46:45,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:46:45,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:46:45,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:46:45,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315208848] [2022-01-11 05:46:45,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315208848] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:46:45,463 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:46:45,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:46:45,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757103772] [2022-01-11 05:46:45,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:46:45,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:46:45,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:46:45,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:46:45,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:46:45,465 INFO L87 Difference]: Start difference. First operand 7647 states and 12845 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:46:49,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:46:49,322 INFO L93 Difference]: Finished difference Result 39915 states and 64601 transitions. [2022-01-11 05:46:49,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:46:49,323 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-01-11 05:46:49,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:46:49,418 INFO L225 Difference]: With dead ends: 39915 [2022-01-11 05:46:49,418 INFO L226 Difference]: Without dead ends: 35410 [2022-01-11 05:46:49,438 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:46:49,439 INFO L933 BasicCegarLoop]: 1927 mSDtfsCounter, 10987 mSDsluCounter, 7749 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10987 SdHoareTripleChecker+Valid, 9676 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-11 05:46:49,439 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10987 Valid, 9676 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-11 05:46:49,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35410 states. [2022-01-11 05:46:50,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35410 to 12684. [2022-01-11 05:46:50,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12684 states, 12678 states have (on average 1.6497870326549928) internal successors, (20916), 12683 states have internal predecessors, (20916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:46:50,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12684 states to 12684 states and 20916 transitions. [2022-01-11 05:46:50,831 INFO L78 Accepts]: Start accepts. Automaton has 12684 states and 20916 transitions. Word has length 74 [2022-01-11 05:46:50,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:46:50,832 INFO L470 AbstractCegarLoop]: Abstraction has 12684 states and 20916 transitions. [2022-01-11 05:46:50,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:46:50,833 INFO L276 IsEmpty]: Start isEmpty. Operand 12684 states and 20916 transitions. [2022-01-11 05:46:50,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-11 05:46:50,839 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:46:50,839 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:46:50,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 05:46:50,840 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)] === [2022-01-11 05:46:50,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:46:50,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1598540609, now seen corresponding path program 1 times [2022-01-11 05:46:50,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:46:50,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518473792] [2022-01-11 05:46:50,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:46:50,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:46:50,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:46:50,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:46:50,996 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:46:50,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518473792] [2022-01-11 05:46:50,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518473792] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:46:50,997 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:46:50,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-11 05:46:50,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473388253] [2022-01-11 05:46:50,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:46:50,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-11 05:46:50,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:46:50,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-11 05:46:50,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:46:50,998 INFO L87 Difference]: Start difference. First operand 12684 states and 20916 transitions. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:46:53,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:46:53,292 INFO L93 Difference]: Finished difference Result 28960 states and 47001 transitions. [2022-01-11 05:46:53,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-11 05:46:53,292 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2022-01-11 05:46:53,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:46:53,332 INFO L225 Difference]: With dead ends: 28960 [2022-01-11 05:46:53,332 INFO L226 Difference]: Without dead ends: 19718 [2022-01-11 05:46:53,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=145, Invalid=317, Unknown=0, NotChecked=0, Total=462 [2022-01-11 05:46:53,347 INFO L933 BasicCegarLoop]: 1980 mSDtfsCounter, 11764 mSDsluCounter, 7232 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11764 SdHoareTripleChecker+Valid, 9212 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:46:53,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11764 Valid, 9212 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 05:46:53,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19718 states. [2022-01-11 05:46:54,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19718 to 12276. [2022-01-11 05:46:54,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12276 states, 12270 states have (on average 1.6459657701711492) internal successors, (20196), 12275 states have internal predecessors, (20196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:46:54,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12276 states to 12276 states and 20196 transitions. [2022-01-11 05:46:54,901 INFO L78 Accepts]: Start accepts. Automaton has 12276 states and 20196 transitions. Word has length 75 [2022-01-11 05:46:54,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:46:54,902 INFO L470 AbstractCegarLoop]: Abstraction has 12276 states and 20196 transitions. [2022-01-11 05:46:54,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:46:54,902 INFO L276 IsEmpty]: Start isEmpty. Operand 12276 states and 20196 transitions. [2022-01-11 05:46:54,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-11 05:46:54,909 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:46:54,909 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:46:54,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 05:46:54,910 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)] === [2022-01-11 05:46:54,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:46:54,910 INFO L85 PathProgramCache]: Analyzing trace with hash -433962543, now seen corresponding path program 1 times [2022-01-11 05:46:54,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:46:54,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432450153] [2022-01-11 05:46:54,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:46:54,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:46:54,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:46:55,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:46:55,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:46:55,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432450153] [2022-01-11 05:46:55,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432450153] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:46:55,021 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:46:55,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:46:55,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256330897] [2022-01-11 05:46:55,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:46:55,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:46:55,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:46:55,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:46:55,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:46:55,022 INFO L87 Difference]: Start difference. First operand 12276 states and 20196 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:46:59,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:46:59,106 INFO L93 Difference]: Finished difference Result 41564 states and 66506 transitions. [2022-01-11 05:46:59,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:46:59,106 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-01-11 05:46:59,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:46:59,164 INFO L225 Difference]: With dead ends: 41564 [2022-01-11 05:46:59,164 INFO L226 Difference]: Without dead ends: 32106 [2022-01-11 05:46:59,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:46:59,188 INFO L933 BasicCegarLoop]: 2711 mSDtfsCounter, 2863 mSDsluCounter, 4262 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2863 SdHoareTripleChecker+Valid, 6973 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:46:59,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2863 Valid, 6973 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 05:46:59,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32106 states. [2022-01-11 05:47:00,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32106 to 12364. [2022-01-11 05:47:00,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12364 states, 12358 states have (on average 1.6413659168150185) internal successors, (20284), 12363 states have internal predecessors, (20284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:00,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12364 states to 12364 states and 20284 transitions. [2022-01-11 05:47:00,658 INFO L78 Accepts]: Start accepts. Automaton has 12364 states and 20284 transitions. Word has length 78 [2022-01-11 05:47:00,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:47:00,658 INFO L470 AbstractCegarLoop]: Abstraction has 12364 states and 20284 transitions. [2022-01-11 05:47:00,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:00,658 INFO L276 IsEmpty]: Start isEmpty. Operand 12364 states and 20284 transitions. [2022-01-11 05:47:00,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-11 05:47:00,666 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:47:00,666 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:47:00,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 05:47:00,666 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)] === [2022-01-11 05:47:00,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:47:00,667 INFO L85 PathProgramCache]: Analyzing trace with hash 303934736, now seen corresponding path program 1 times [2022-01-11 05:47:00,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:47:00,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666070674] [2022-01-11 05:47:00,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:47:00,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:47:00,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:47:00,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:47:00,782 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:47:00,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666070674] [2022-01-11 05:47:00,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666070674] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:47:00,782 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:47:00,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 05:47:00,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196850164] [2022-01-11 05:47:00,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:47:00,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:47:00,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:47:00,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:47:00,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:47:00,784 INFO L87 Difference]: Start difference. First operand 12364 states and 20284 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:05,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:47:05,657 INFO L93 Difference]: Finished difference Result 45852 states and 73446 transitions. [2022-01-11 05:47:05,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-11 05:47:05,658 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-01-11 05:47:05,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:47:05,713 INFO L225 Difference]: With dead ends: 45852 [2022-01-11 05:47:05,713 INFO L226 Difference]: Without dead ends: 36210 [2022-01-11 05:47:05,736 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 [2022-01-11 05:47:05,736 INFO L933 BasicCegarLoop]: 1880 mSDtfsCounter, 10202 mSDsluCounter, 6685 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10202 SdHoareTripleChecker+Valid, 8565 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:47:05,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10202 Valid, 8565 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 05:47:05,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36210 states. [2022-01-11 05:47:07,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36210 to 17048. [2022-01-11 05:47:07,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17048 states, 17042 states have (on average 1.6349020068067128) internal successors, (27862), 17047 states have internal predecessors, (27862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:08,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17048 states to 17048 states and 27862 transitions. [2022-01-11 05:47:08,014 INFO L78 Accepts]: Start accepts. Automaton has 17048 states and 27862 transitions. Word has length 78 [2022-01-11 05:47:08,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:47:08,014 INFO L470 AbstractCegarLoop]: Abstraction has 17048 states and 27862 transitions. [2022-01-11 05:47:08,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:08,014 INFO L276 IsEmpty]: Start isEmpty. Operand 17048 states and 27862 transitions. [2022-01-11 05:47:08,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-11 05:47:08,023 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:47:08,023 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:47:08,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 05:47:08,024 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)] === [2022-01-11 05:47:08,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:47:08,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1023317664, now seen corresponding path program 1 times [2022-01-11 05:47:08,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:47:08,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629999492] [2022-01-11 05:47:08,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:47:08,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:47:08,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:47:08,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:47:08,121 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:47:08,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629999492] [2022-01-11 05:47:08,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629999492] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:47:08,121 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:47:08,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:47:08,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407336482] [2022-01-11 05:47:08,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:47:08,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:47:08,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:47:08,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:47:08,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:47:08,122 INFO L87 Difference]: Start difference. First operand 17048 states and 27862 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:15,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:47:15,710 INFO L93 Difference]: Finished difference Result 70012 states and 112684 transitions. [2022-01-11 05:47:15,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:47:15,711 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-01-11 05:47:15,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:47:15,801 INFO L225 Difference]: With dead ends: 70012 [2022-01-11 05:47:15,801 INFO L226 Difference]: Without dead ends: 56216 [2022-01-11 05:47:15,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:47:15,823 INFO L933 BasicCegarLoop]: 5216 mSDtfsCounter, 3166 mSDsluCounter, 10222 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3166 SdHoareTripleChecker+Valid, 15438 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-11 05:47:15,823 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3166 Valid, 15438 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-11 05:47:15,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56216 states. [2022-01-11 05:47:18,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56216 to 17788. [2022-01-11 05:47:18,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17788 states, 17782 states have (on average 1.6383983803846587) internal successors, (29134), 17787 states have internal predecessors, (29134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:18,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17788 states to 17788 states and 29134 transitions. [2022-01-11 05:47:18,408 INFO L78 Accepts]: Start accepts. Automaton has 17788 states and 29134 transitions. Word has length 78 [2022-01-11 05:47:18,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:47:18,408 INFO L470 AbstractCegarLoop]: Abstraction has 17788 states and 29134 transitions. [2022-01-11 05:47:18,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:47:18,408 INFO L276 IsEmpty]: Start isEmpty. Operand 17788 states and 29134 transitions. [2022-01-11 05:47:18,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-11 05:47:18,415 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:47:18,415 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:47:18,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 05:47:18,416 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)] === [2022-01-11 05:47:18,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:47:18,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1716419361, now seen corresponding path program 1 times [2022-01-11 05:47:18,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:47:18,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108909248] [2022-01-11 05:47:18,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:47:18,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:47:18,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:47:18,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:47:18,530 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:47:18,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108909248] [2022-01-11 05:47:18,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108909248] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:47:18,532 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:47:18,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:47:18,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998758350] [2022-01-11 05:47:18,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:47:18,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:47:18,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:47:18,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:47:18,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:47:18,534 INFO L87 Difference]: Start difference. First operand 17788 states and 29134 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 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)