/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_spec0_product40.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 05:38:27,926 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 05:38:27,928 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 05:38:27,992 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 05:38:27,993 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 05:38:27,995 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 05:38:27,999 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 05:38:28,001 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 05:38:28,002 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 05:38:28,008 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 05:38:28,009 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 05:38:28,011 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 05:38:28,011 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 05:38:28,013 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 05:38:28,014 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 05:38:28,014 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 05:38:28,015 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 05:38:28,015 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 05:38:28,023 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 05:38:28,028 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 05:38:28,029 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 05:38:28,030 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 05:38:28,031 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 05:38:28,032 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 05:38:28,034 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 05:38:28,034 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 05:38:28,034 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 05:38:28,035 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 05:38:28,035 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 05:38:28,036 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 05:38:28,036 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 05:38:28,036 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 05:38:28,037 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 05:38:28,038 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 05:38:28,039 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 05:38:28,039 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 05:38:28,039 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 05:38:28,039 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 05:38:28,039 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 05:38:28,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 05:38:28,040 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 05:38:28,041 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 05:38:28,066 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 05:38:28,066 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 05:38:28,067 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 05:38:28,067 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 05:38:28,068 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 05:38:28,068 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 05:38:28,068 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 05:38:28,068 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 05:38:28,068 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 05:38:28,068 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 05:38:28,069 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 05:38:28,069 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 05:38:28,069 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 05:38:28,069 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 05:38:28,069 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 05:38:28,069 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 05:38:28,069 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 05:38:28,070 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 05:38:28,070 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 05:38:28,070 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 05:38:28,070 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 05:38:28,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:38:28,071 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 05:38:28,071 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 05:38:28,071 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 05:38:28,071 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 05:38:28,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 05:38:28,071 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 05:38:28,071 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 05:38:28,071 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 05:38:28,071 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 05:38:28,072 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 05:38:28,072 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 05:38:28,072 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 05:38:28,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 05:38:28,278 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 05:38:28,280 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 05:38:28,281 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 05:38:28,281 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 05:38:28,282 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product40.cil.c [2022-01-11 05:38:28,338 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c3e04bfe/f5c42dab81a74d24ad323e5c74485eef/FLAGc9292928f [2022-01-11 05:38:28,723 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 05:38:28,724 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product40.cil.c [2022-01-11 05:38:28,764 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c3e04bfe/f5c42dab81a74d24ad323e5c74485eef/FLAGc9292928f [2022-01-11 05:38:29,085 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c3e04bfe/f5c42dab81a74d24ad323e5c74485eef [2022-01-11 05:38:29,089 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 05:38:29,092 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 05:38:29,093 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 05:38:29,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 05:38:29,096 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 05:38:29,096 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:38:29" (1/1) ... [2022-01-11 05:38:29,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2eadc7a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:38:29, skipping insertion in model container [2022-01-11 05:38:29,097 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:38:29" (1/1) ... [2022-01-11 05:38:29,101 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 05:38:29,159 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:38:29,390 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_spec0_product40.cil.c[7657,7670] [2022-01-11 05:38:29,584 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:38:29,593 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 05:38:29,602 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:38:29,612 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_spec0_product40.cil.c[7657,7670] [2022-01-11 05:38:29,681 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:38:29,686 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 05:38:29,703 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_spec0_product40.cil.c[7657,7670] [2022-01-11 05:38:29,774 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:38:29,793 INFO L208 MainTranslator]: Completed translation [2022-01-11 05:38:29,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:38:29 WrapperNode [2022-01-11 05:38:29,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 05:38:29,794 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 05:38:29,794 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 05:38:29,794 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 05:38:29,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:38:29" (1/1) ... [2022-01-11 05:38:29,844 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:38:29" (1/1) ... [2022-01-11 05:38:29,920 INFO L137 Inliner]: procedures = 129, calls = 205, calls flagged for inlining = 115, calls inlined = 248, statements flattened = 3366 [2022-01-11 05:38:29,920 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 05:38:29,921 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 05:38:29,921 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 05:38:29,921 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 05:38:29,928 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:38:29" (1/1) ... [2022-01-11 05:38:29,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:38:29" (1/1) ... [2022-01-11 05:38:29,944 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:38:29" (1/1) ... [2022-01-11 05:38:29,944 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:38:29" (1/1) ... [2022-01-11 05:38:29,985 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:38:29" (1/1) ... [2022-01-11 05:38:29,998 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:38:29" (1/1) ... [2022-01-11 05:38:30,003 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:38:29" (1/1) ... [2022-01-11 05:38:30,014 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 05:38:30,015 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 05:38:30,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 05:38:30,015 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 05:38:30,016 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:38:29" (1/1) ... [2022-01-11 05:38:30,020 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:38:30,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:38:30,039 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 05:38:30,054 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 05:38:30,068 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-01-11 05:38:30,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 05:38:30,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 05:38:30,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 05:38:30,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 05:38:30,297 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 05:38:30,299 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 05:38:31,472 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 05:38:31,489 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 05:38:31,489 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 05:38:31,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:38:31 BoogieIcfgContainer [2022-01-11 05:38:31,492 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 05:38:31,493 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 05:38:31,493 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 05:38:31,494 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 05:38:31,496 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:38:31" (1/1) ... [2022-01-11 05:38:31,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:38:31 BasicIcfg [2022-01-11 05:38:31,845 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 05:38:31,846 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 05:38:31,846 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 05:38:31,848 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 05:38:31,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:38:29" (1/4) ... [2022-01-11 05:38:31,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35305be6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:38:31, skipping insertion in model container [2022-01-11 05:38:31,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:38:29" (2/4) ... [2022-01-11 05:38:31,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35305be6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:38:31, skipping insertion in model container [2022-01-11 05:38:31,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:38:31" (3/4) ... [2022-01-11 05:38:31,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35305be6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:38:31, skipping insertion in model container [2022-01-11 05:38:31,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:38:31" (4/4) ... [2022-01-11 05:38:31,851 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec0_product40.cil.cTransformedIcfg [2022-01-11 05:38:31,855 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 05:38:31,855 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-01-11 05:38:31,899 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 05:38:31,905 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 05:38:31,905 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-11 05:38:31,929 INFO L276 IsEmpty]: Start isEmpty. Operand has 747 states, 740 states have (on average 1.6594594594594594) internal successors, (1228), 746 states have internal predecessors, (1228), 0 states have call successors, (0), 0 states 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 05:38:31,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-11 05:38:31,941 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:38:31,942 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:38:31,942 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:38:31,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:38:31,946 INFO L85 PathProgramCache]: Analyzing trace with hash -974049029, now seen corresponding path program 1 times [2022-01-11 05:38:31,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:38:31,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44763791] [2022-01-11 05:38:31,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:38:31,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:38:32,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:38:32,257 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 05:38:32,257 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:38:32,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44763791] [2022-01-11 05:38:32,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44763791] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:38:32,258 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:38:32,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 05:38:32,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038234439] [2022-01-11 05:38:32,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:38:32,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-11 05:38:32,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:38:32,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-11 05:38:32,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 05:38:32,284 INFO L87 Difference]: Start difference. First operand has 747 states, 740 states have (on average 1.6594594594594594) internal successors, (1228), 746 states have internal predecessors, (1228), 0 states have call successors, (0), 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 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:32,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:38:32,347 INFO L93 Difference]: Finished difference Result 1180 states and 1901 transitions. [2022-01-11 05:38:32,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-11 05:38:32,356 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2022-01-11 05:38:32,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:38:32,369 INFO L225 Difference]: With dead ends: 1180 [2022-01-11 05:38:32,369 INFO L226 Difference]: Without dead ends: 700 [2022-01-11 05:38:32,376 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 05:38:32,380 INFO L933 BasicCegarLoop]: 1214 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, 1214 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 05:38:32,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1214 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:38:32,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2022-01-11 05:38:32,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 700. [2022-01-11 05:38:32,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 694 states have (on average 1.6657060518731988) internal successors, (1156), 699 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states 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 05:38:32,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 1156 transitions. [2022-01-11 05:38:32,467 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 1156 transitions. Word has length 55 [2022-01-11 05:38:32,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:38:32,467 INFO L470 AbstractCegarLoop]: Abstraction has 700 states and 1156 transitions. [2022-01-11 05:38:32,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:32,467 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 1156 transitions. [2022-01-11 05:38:32,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-11 05:38:32,469 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:38:32,470 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:38:32,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 05:38:32,470 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:38:32,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:38:32,471 INFO L85 PathProgramCache]: Analyzing trace with hash 457123293, now seen corresponding path program 1 times [2022-01-11 05:38:32,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:38:32,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838964754] [2022-01-11 05:38:32,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:38:32,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:38:32,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:38:32,677 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 05:38:32,677 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:38:32,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838964754] [2022-01-11 05:38:32,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838964754] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:38:32,678 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:38:32,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:38:32,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776688181] [2022-01-11 05:38:32,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:38:32,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:38:32,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:38:32,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:38:32,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:38:32,680 INFO L87 Difference]: Start difference. First operand 700 states and 1156 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states 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 05:38:32,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:38:32,770 INFO L93 Difference]: Finished difference Result 1381 states and 2284 transitions. [2022-01-11 05:38:32,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:38:32,771 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2022-01-11 05:38:32,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:38:32,774 INFO L225 Difference]: With dead ends: 1381 [2022-01-11 05:38:32,774 INFO L226 Difference]: Without dead ends: 700 [2022-01-11 05:38:32,777 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 05:38:32,778 INFO L933 BasicCegarLoop]: 1134 mSDtfsCounter, 1131 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1131 SdHoareTripleChecker+Valid, 1147 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:38:32,778 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1131 Valid, 1147 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:38:32,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2022-01-11 05:38:32,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 700. [2022-01-11 05:38:32,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 694 states have (on average 1.6628242074927955) internal successors, (1154), 699 states have internal predecessors, (1154), 0 states have call successors, (0), 0 states 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 05:38:32,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 1154 transitions. [2022-01-11 05:38:32,853 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 1154 transitions. Word has length 56 [2022-01-11 05:38:32,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:38:32,855 INFO L470 AbstractCegarLoop]: Abstraction has 700 states and 1154 transitions. [2022-01-11 05:38:32,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states 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 05:38:32,856 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 1154 transitions. [2022-01-11 05:38:32,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-11 05:38:32,864 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:38:32,864 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:38:32,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 05:38:32,865 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:38:32,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:38:32,865 INFO L85 PathProgramCache]: Analyzing trace with hash -168414115, now seen corresponding path program 1 times [2022-01-11 05:38:32,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:38:32,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119531412] [2022-01-11 05:38:32,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:38:32,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:38:32,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:38:32,980 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 05:38:32,981 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:38:32,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119531412] [2022-01-11 05:38:32,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119531412] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:38:32,982 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:38:32,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:38:32,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814670025] [2022-01-11 05:38:32,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:38:32,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:38:32,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:38:32,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:38:32,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:38:32,984 INFO L87 Difference]: Start difference. First operand 700 states and 1154 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:33,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:38:33,238 INFO L93 Difference]: Finished difference Result 3368 states and 5566 transitions. [2022-01-11 05:38:33,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-11 05:38:33,239 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-01-11 05:38:33,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:38:33,250 INFO L225 Difference]: With dead ends: 3368 [2022-01-11 05:38:33,251 INFO L226 Difference]: Without dead ends: 2692 [2022-01-11 05:38:33,255 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 05:38:33,257 INFO L933 BasicCegarLoop]: 2231 mSDtfsCounter, 5553 mSDsluCounter, 3334 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5553 SdHoareTripleChecker+Valid, 5565 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 05:38:33,258 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5553 Valid, 5565 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:38:33,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2692 states. [2022-01-11 05:38:33,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2692 to 700. [2022-01-11 05:38:33,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 694 states have (on average 1.6613832853025936) internal successors, (1153), 699 states have internal predecessors, (1153), 0 states have call successors, (0), 0 states 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 05:38:33,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 1153 transitions. [2022-01-11 05:38:33,307 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 1153 transitions. Word has length 58 [2022-01-11 05:38:33,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:38:33,308 INFO L470 AbstractCegarLoop]: Abstraction has 700 states and 1153 transitions. [2022-01-11 05:38:33,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:33,308 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 1153 transitions. [2022-01-11 05:38:33,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-11 05:38:33,310 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:38:33,310 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:38:33,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 05:38:33,310 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:38:33,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:38:33,311 INFO L85 PathProgramCache]: Analyzing trace with hash 235917269, now seen corresponding path program 1 times [2022-01-11 05:38:33,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:38:33,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160473442] [2022-01-11 05:38:33,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:38:33,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:38:33,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:38:33,416 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 05:38:33,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:38:33,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160473442] [2022-01-11 05:38:33,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160473442] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:38:33,417 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:38:33,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:38:33,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627008593] [2022-01-11 05:38:33,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:38:33,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:38:33,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:38:33,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:38:33,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:38:33,419 INFO L87 Difference]: Start difference. First operand 700 states and 1153 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:33,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:38:33,477 INFO L93 Difference]: Finished difference Result 1385 states and 2284 transitions. [2022-01-11 05:38:33,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:38:33,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2022-01-11 05:38:33,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:38:33,480 INFO L225 Difference]: With dead ends: 1385 [2022-01-11 05:38:33,480 INFO L226 Difference]: Without dead ends: 714 [2022-01-11 05:38:33,481 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 05:38:33,487 INFO L933 BasicCegarLoop]: 1167 mSDtfsCounter, 1132 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1132 SdHoareTripleChecker+Valid, 1189 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 05:38:33,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1132 Valid, 1189 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:38:33,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2022-01-11 05:38:33,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 700. [2022-01-11 05:38:33,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 694 states have (on average 1.659942363112392) internal successors, (1152), 699 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states 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 05:38:33,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 1152 transitions. [2022-01-11 05:38:33,530 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 1152 transitions. Word has length 59 [2022-01-11 05:38:33,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:38:33,532 INFO L470 AbstractCegarLoop]: Abstraction has 700 states and 1152 transitions. [2022-01-11 05:38:33,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:33,532 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 1152 transitions. [2022-01-11 05:38:33,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-11 05:38:33,533 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:38:33,534 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:38:33,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 05:38:33,534 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:38:33,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:38:33,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1915355236, now seen corresponding path program 1 times [2022-01-11 05:38:33,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:38:33,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062573581] [2022-01-11 05:38:33,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:38:33,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:38:33,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:38:33,640 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 05:38:33,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:38:33,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062573581] [2022-01-11 05:38:33,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062573581] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:38:33,641 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:38:33,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:38:33,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490267735] [2022-01-11 05:38:33,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:38:33,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:38:33,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:38:33,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:38:33,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:38:33,642 INFO L87 Difference]: Start difference. First operand 700 states and 1152 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:33,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:38:33,804 INFO L93 Difference]: Finished difference Result 2034 states and 3356 transitions. [2022-01-11 05:38:33,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:38:33,805 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-01-11 05:38:33,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:38:33,809 INFO L225 Difference]: With dead ends: 2034 [2022-01-11 05:38:33,809 INFO L226 Difference]: Without dead ends: 1368 [2022-01-11 05:38:33,810 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 05:38:33,810 INFO L933 BasicCegarLoop]: 1161 mSDtfsCounter, 5476 mSDsluCounter, 1175 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5476 SdHoareTripleChecker+Valid, 2336 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 05:38:33,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5476 Valid, 2336 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:38:33,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1368 states. [2022-01-11 05:38:33,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1368 to 700. [2022-01-11 05:38:33,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 694 states have (on average 1.6570605187319885) internal successors, (1150), 699 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states 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 05:38:33,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 1150 transitions. [2022-01-11 05:38:33,850 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 1150 transitions. Word has length 60 [2022-01-11 05:38:33,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:38:33,850 INFO L470 AbstractCegarLoop]: Abstraction has 700 states and 1150 transitions. [2022-01-11 05:38:33,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:33,850 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 1150 transitions. [2022-01-11 05:38:33,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-01-11 05:38:33,851 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:38:33,851 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] [2022-01-11 05:38:33,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 05:38:33,852 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:38:33,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:38:33,852 INFO L85 PathProgramCache]: Analyzing trace with hash 683643551, now seen corresponding path program 1 times [2022-01-11 05:38:33,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:38:33,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196470795] [2022-01-11 05:38:33,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:38:33,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:38:33,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:38:33,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:38:33,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:38:33,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196470795] [2022-01-11 05:38:33,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196470795] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:38:33,968 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:38:33,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:38:33,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962223788] [2022-01-11 05:38:33,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:38:33,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:38:33,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:38:33,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:38:33,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:38:33,970 INFO L87 Difference]: Start difference. First operand 700 states and 1150 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states 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 05:38:34,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:38:34,251 INFO L93 Difference]: Finished difference Result 2272 states and 3692 transitions. [2022-01-11 05:38:34,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:38:34,252 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2022-01-11 05:38:34,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:38:34,258 INFO L225 Difference]: With dead ends: 2272 [2022-01-11 05:38:34,258 INFO L226 Difference]: Without dead ends: 1967 [2022-01-11 05:38:34,259 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 05:38:34,260 INFO L933 BasicCegarLoop]: 1136 mSDtfsCounter, 2734 mSDsluCounter, 3621 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2734 SdHoareTripleChecker+Valid, 4757 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:38:34,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2734 Valid, 4757 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:38:34,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1967 states. [2022-01-11 05:38:34,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1967 to 1349. [2022-01-11 05:38:34,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1349 states, 1343 states have (on average 1.6612062546537603) internal successors, (2231), 1348 states have internal predecessors, (2231), 0 states have call successors, (0), 0 states 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 05:38:34,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1349 states to 1349 states and 2231 transitions. [2022-01-11 05:38:34,330 INFO L78 Accepts]: Start accepts. Automaton has 1349 states and 2231 transitions. Word has length 62 [2022-01-11 05:38:34,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:38:34,331 INFO L470 AbstractCegarLoop]: Abstraction has 1349 states and 2231 transitions. [2022-01-11 05:38:34,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states 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 05:38:34,332 INFO L276 IsEmpty]: Start isEmpty. Operand 1349 states and 2231 transitions. [2022-01-11 05:38:34,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-11 05:38:34,333 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:38:34,333 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] [2022-01-11 05:38:34,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 05:38:34,333 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:38:34,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:38:34,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1615516973, now seen corresponding path program 1 times [2022-01-11 05:38:34,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:38:34,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204729057] [2022-01-11 05:38:34,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:38:34,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:38:34,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:38:34,427 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 05:38:34,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:38:34,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204729057] [2022-01-11 05:38:34,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204729057] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:38:34,428 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:38:34,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:38:34,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935864144] [2022-01-11 05:38:34,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:38:34,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:38:34,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:38:34,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:38:34,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:38:34,429 INFO L87 Difference]: Start difference. First operand 1349 states and 2231 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states 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 05:38:34,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:38:34,782 INFO L93 Difference]: Finished difference Result 4445 states and 7247 transitions. [2022-01-11 05:38:34,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:38:34,782 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2022-01-11 05:38:34,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:38:34,794 INFO L225 Difference]: With dead ends: 4445 [2022-01-11 05:38:34,794 INFO L226 Difference]: Without dead ends: 3869 [2022-01-11 05:38:34,797 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 05:38:34,797 INFO L933 BasicCegarLoop]: 1427 mSDtfsCounter, 2243 mSDsluCounter, 3709 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2243 SdHoareTripleChecker+Valid, 5136 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:38:34,798 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2243 Valid, 5136 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:38:34,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3869 states. [2022-01-11 05:38:34,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3869 to 2633. [2022-01-11 05:38:34,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2633 states, 2627 states have (on average 1.669204415683289) internal successors, (4385), 2632 states have internal predecessors, (4385), 0 states have call successors, (0), 0 states 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 05:38:34,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2633 states to 2633 states and 4385 transitions. [2022-01-11 05:38:34,967 INFO L78 Accepts]: Start accepts. Automaton has 2633 states and 4385 transitions. Word has length 63 [2022-01-11 05:38:34,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:38:34,967 INFO L470 AbstractCegarLoop]: Abstraction has 2633 states and 4385 transitions. [2022-01-11 05:38:34,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states 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 05:38:34,968 INFO L276 IsEmpty]: Start isEmpty. Operand 2633 states and 4385 transitions. [2022-01-11 05:38:34,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-11 05:38:34,969 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:38:34,970 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 05:38:34,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 05:38:34,970 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:38:34,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:38:34,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1806620731, now seen corresponding path program 1 times [2022-01-11 05:38:34,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:38:34,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927920588] [2022-01-11 05:38:34,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:38:34,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:38:35,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:38:35,053 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 05:38:35,053 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:38:35,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927920588] [2022-01-11 05:38:35,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927920588] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:38:35,053 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:38:35,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:38:35,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339373983] [2022-01-11 05:38:35,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:38:35,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:38:35,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:38:35,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:38:35,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:38:35,055 INFO L87 Difference]: Start difference. First operand 2633 states and 4385 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 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 05:38:35,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:38:35,546 INFO L93 Difference]: Finished difference Result 8582 states and 14058 transitions. [2022-01-11 05:38:35,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:38:35,546 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 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 05:38:35,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:38:35,569 INFO L225 Difference]: With dead ends: 8582 [2022-01-11 05:38:35,569 INFO L226 Difference]: Without dead ends: 6977 [2022-01-11 05:38:35,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:38:35,574 INFO L933 BasicCegarLoop]: 1427 mSDtfsCounter, 2242 mSDsluCounter, 3709 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2242 SdHoareTripleChecker+Valid, 5136 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:38:35,574 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2242 Valid, 5136 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:38:35,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6977 states. [2022-01-11 05:38:35,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6977 to 4829. [2022-01-11 05:38:35,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4829 states, 4823 states have (on average 1.679867302508812) internal successors, (8102), 4828 states have internal predecessors, (8102), 0 states have call successors, (0), 0 states 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 05:38:35,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4829 states to 4829 states and 8102 transitions. [2022-01-11 05:38:35,856 INFO L78 Accepts]: Start accepts. Automaton has 4829 states and 8102 transitions. Word has length 64 [2022-01-11 05:38:35,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:38:35,857 INFO L470 AbstractCegarLoop]: Abstraction has 4829 states and 8102 transitions. [2022-01-11 05:38:35,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 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 05:38:35,857 INFO L276 IsEmpty]: Start isEmpty. Operand 4829 states and 8102 transitions. [2022-01-11 05:38:35,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-11 05:38:35,860 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:38:35,860 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:38:35,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 05:38:35,861 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:38:35,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:38:35,861 INFO L85 PathProgramCache]: Analyzing trace with hash -916295203, now seen corresponding path program 1 times [2022-01-11 05:38:35,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:38:35,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022041563] [2022-01-11 05:38:35,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:38:35,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:38:35,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:38:35,949 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:38:35,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:38:35,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022041563] [2022-01-11 05:38:35,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022041563] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:38:35,949 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:38:35,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:38:35,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202955573] [2022-01-11 05:38:35,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:38:35,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:38:35,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:38:35,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:38:35,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:38:35,950 INFO L87 Difference]: Start difference. First operand 4829 states and 8102 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 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 05:38:36,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:38:36,365 INFO L93 Difference]: Finished difference Result 13997 states and 23440 transitions. [2022-01-11 05:38:36,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:38:36,365 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 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 05:38:36,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:38:36,405 INFO L225 Difference]: With dead ends: 13997 [2022-01-11 05:38:36,405 INFO L226 Difference]: Without dead ends: 9205 [2022-01-11 05:38:36,411 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 05:38:36,412 INFO L933 BasicCegarLoop]: 1147 mSDtfsCounter, 1094 mSDsluCounter, 1049 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1094 SdHoareTripleChecker+Valid, 2196 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:38:36,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1094 Valid, 2196 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:38:36,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9205 states. [2022-01-11 05:38:36,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9205 to 6581. [2022-01-11 05:38:36,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6581 states, 6575 states have (on average 1.7111787072243345) internal successors, (11251), 6580 states have internal predecessors, (11251), 0 states have call successors, (0), 0 states 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 05:38:36,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6581 states to 6581 states and 11251 transitions. [2022-01-11 05:38:36,739 INFO L78 Accepts]: Start accepts. Automaton has 6581 states and 11251 transitions. Word has length 75 [2022-01-11 05:38:36,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:38:36,739 INFO L470 AbstractCegarLoop]: Abstraction has 6581 states and 11251 transitions. [2022-01-11 05:38:36,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 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 05:38:36,740 INFO L276 IsEmpty]: Start isEmpty. Operand 6581 states and 11251 transitions. [2022-01-11 05:38:36,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-01-11 05:38:36,744 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:38:36,744 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:38:36,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 05:38:36,744 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:38:36,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:38:36,745 INFO L85 PathProgramCache]: Analyzing trace with hash -566803094, now seen corresponding path program 1 times [2022-01-11 05:38:36,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:38:36,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513084804] [2022-01-11 05:38:36,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:38:36,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:38:36,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:38:36,793 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:38:36,793 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:38:36,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513084804] [2022-01-11 05:38:36,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513084804] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:38:36,794 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:38:36,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:38:36,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048624760] [2022-01-11 05:38:36,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:38:36,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:38:36,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:38:36,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:38:36,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:38:36,795 INFO L87 Difference]: Start difference. First operand 6581 states and 11251 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:37,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:38:37,285 INFO L93 Difference]: Finished difference Result 19573 states and 33495 transitions. [2022-01-11 05:38:37,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:38:37,286 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-01-11 05:38:37,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:38:37,312 INFO L225 Difference]: With dead ends: 19573 [2022-01-11 05:38:37,312 INFO L226 Difference]: Without dead ends: 13029 [2022-01-11 05:38:37,321 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 05:38:37,322 INFO L933 BasicCegarLoop]: 1147 mSDtfsCounter, 1092 mSDsluCounter, 1135 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1092 SdHoareTripleChecker+Valid, 2282 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:38:37,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1092 Valid, 2282 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:38:37,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13029 states. [2022-01-11 05:38:37,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13029 to 10405. [2022-01-11 05:38:37,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10405 states, 10399 states have (on average 1.7452639676892008) internal successors, (18149), 10404 states have internal predecessors, (18149), 0 states have call successors, (0), 0 states 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 05:38:37,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10405 states to 10405 states and 18149 transitions. [2022-01-11 05:38:37,855 INFO L78 Accepts]: Start accepts. Automaton has 10405 states and 18149 transitions. Word has length 76 [2022-01-11 05:38:37,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:38:37,856 INFO L470 AbstractCegarLoop]: Abstraction has 10405 states and 18149 transitions. [2022-01-11 05:38:37,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:37,856 INFO L276 IsEmpty]: Start isEmpty. Operand 10405 states and 18149 transitions. [2022-01-11 05:38:37,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-11 05:38:37,864 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:38:37,864 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:38:37,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 05:38:37,864 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:38:37,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:38:37,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1507056054, now seen corresponding path program 1 times [2022-01-11 05:38:37,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:38:37,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010766478] [2022-01-11 05:38:37,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:38:37,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:38:37,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:38:37,928 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:38:37,928 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:38:37,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010766478] [2022-01-11 05:38:37,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010766478] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:38:37,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:38:37,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:38:37,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921336432] [2022-01-11 05:38:37,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:38:37,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:38:37,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:38:37,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:38:37,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:38:37,930 INFO L87 Difference]: Start difference. First operand 10405 states and 18149 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:38,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:38:38,610 INFO L93 Difference]: Finished difference Result 30949 states and 54029 transitions. [2022-01-11 05:38:38,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:38:38,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-11 05:38:38,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:38:38,651 INFO L225 Difference]: With dead ends: 30949 [2022-01-11 05:38:38,651 INFO L226 Difference]: Without dead ends: 20581 [2022-01-11 05:38:38,663 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 05:38:38,664 INFO L933 BasicCegarLoop]: 1147 mSDtfsCounter, 1090 mSDsluCounter, 1135 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1090 SdHoareTripleChecker+Valid, 2282 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:38:38,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1090 Valid, 2282 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:38:38,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20581 states. [2022-01-11 05:38:39,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20581 to 17957. [2022-01-11 05:38:39,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17957 states, 17951 states have (on average 1.7697621302434405) internal successors, (31769), 17956 states have internal predecessors, (31769), 0 states have call successors, (0), 0 states 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 05:38:39,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17957 states to 17957 states and 31769 transitions. [2022-01-11 05:38:39,365 INFO L78 Accepts]: Start accepts. Automaton has 17957 states and 31769 transitions. Word has length 77 [2022-01-11 05:38:39,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:38:39,365 INFO L470 AbstractCegarLoop]: Abstraction has 17957 states and 31769 transitions. [2022-01-11 05:38:39,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:39,366 INFO L276 IsEmpty]: Start isEmpty. Operand 17957 states and 31769 transitions. [2022-01-11 05:38:39,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-11 05:38:39,373 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:38:39,373 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:38:39,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 05:38:39,374 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:38:39,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:38:39,374 INFO L85 PathProgramCache]: Analyzing trace with hash 2106565842, now seen corresponding path program 1 times [2022-01-11 05:38:39,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:38:39,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646783355] [2022-01-11 05:38:39,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:38:39,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:38:39,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:38:39,419 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:38:39,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:38:39,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646783355] [2022-01-11 05:38:39,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646783355] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:38:39,419 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:38:39,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:38:39,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614848263] [2022-01-11 05:38:39,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:38:39,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:38:39,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:38:39,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:38:39,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:38:39,420 INFO L87 Difference]: Start difference. First operand 17957 states and 31769 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 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 05:38:40,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:38:40,623 INFO L93 Difference]: Finished difference Result 51749 states and 91497 transitions. [2022-01-11 05:38:40,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:38:40,624 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 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 05:38:40,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:38:40,692 INFO L225 Difference]: With dead ends: 51749 [2022-01-11 05:38:40,692 INFO L226 Difference]: Without dead ends: 33829 [2022-01-11 05:38:40,716 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 05:38:40,717 INFO L933 BasicCegarLoop]: 1147 mSDtfsCounter, 1088 mSDsluCounter, 1087 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1088 SdHoareTripleChecker+Valid, 2234 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:38:40,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1088 Valid, 2234 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:38:40,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33829 states. [2022-01-11 05:38:41,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33829 to 31205. [2022-01-11 05:38:41,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31205 states, 31199 states have (on average 1.7816276162697522) internal successors, (55585), 31204 states have internal predecessors, (55585), 0 states have call successors, (0), 0 states 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 05:38:41,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31205 states to 31205 states and 55585 transitions. [2022-01-11 05:38:41,883 INFO L78 Accepts]: Start accepts. Automaton has 31205 states and 55585 transitions. Word has length 78 [2022-01-11 05:38:41,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:38:41,883 INFO L470 AbstractCegarLoop]: Abstraction has 31205 states and 55585 transitions. [2022-01-11 05:38:41,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 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 05:38:41,884 INFO L276 IsEmpty]: Start isEmpty. Operand 31205 states and 55585 transitions. [2022-01-11 05:38:41,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-01-11 05:38:41,892 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:38:41,893 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:38:41,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 05:38:41,893 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:38:41,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:38:41,893 INFO L85 PathProgramCache]: Analyzing trace with hash -492955287, now seen corresponding path program 1 times [2022-01-11 05:38:41,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:38:41,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590217368] [2022-01-11 05:38:41,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:38:41,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:38:41,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:38:41,958 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:38:41,958 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:38:41,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590217368] [2022-01-11 05:38:41,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590217368] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:38:41,958 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:38:41,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:38:41,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549630056] [2022-01-11 05:38:41,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:38:41,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:38:41,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:38:41,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:38:41,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:38:41,959 INFO L87 Difference]: Start difference. First operand 31205 states and 55585 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:44,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:38:44,025 INFO L93 Difference]: Finished difference Result 89445 states and 159233 transitions. [2022-01-11 05:38:44,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:38:44,026 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-01-11 05:38:44,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:38:44,145 INFO L225 Difference]: With dead ends: 89445 [2022-01-11 05:38:44,145 INFO L226 Difference]: Without dead ends: 58277 [2022-01-11 05:38:44,184 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 05:38:44,184 INFO L933 BasicCegarLoop]: 1147 mSDtfsCounter, 1086 mSDsluCounter, 1087 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1086 SdHoareTripleChecker+Valid, 2234 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:38:44,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1086 Valid, 2234 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:38:44,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58277 states. [2022-01-11 05:38:46,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58277 to 55653. [2022-01-11 05:38:46,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55653 states, 55647 states have (on average 1.78699660359049) internal successors, (99441), 55652 states have internal predecessors, (99441), 0 states have call successors, (0), 0 states 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 05:38:46,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55653 states to 55653 states and 99441 transitions. [2022-01-11 05:38:46,412 INFO L78 Accepts]: Start accepts. Automaton has 55653 states and 99441 transitions. Word has length 79 [2022-01-11 05:38:46,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:38:46,412 INFO L470 AbstractCegarLoop]: Abstraction has 55653 states and 99441 transitions. [2022-01-11 05:38:46,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:46,413 INFO L276 IsEmpty]: Start isEmpty. Operand 55653 states and 99441 transitions. [2022-01-11 05:38:46,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-01-11 05:38:46,421 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:38:46,421 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:38:46,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 05:38:46,421 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:38:46,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:38:46,422 INFO L85 PathProgramCache]: Analyzing trace with hash -2077293662, now seen corresponding path program 1 times [2022-01-11 05:38:46,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:38:46,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845404286] [2022-01-11 05:38:46,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:38:46,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:38:46,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:38:46,503 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:38:46,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:38:46,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845404286] [2022-01-11 05:38:46,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845404286] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:38:46,503 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:38:46,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:38:46,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867931772] [2022-01-11 05:38:46,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:38:46,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:38:46,504 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:38:46,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:38:46,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:38:46,505 INFO L87 Difference]: Start difference. First operand 55653 states and 99441 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:47,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:38:47,833 INFO L93 Difference]: Finished difference Result 62151 states and 111043 transitions. [2022-01-11 05:38:47,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:38:47,833 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-01-11 05:38:47,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:38:47,893 INFO L225 Difference]: With dead ends: 62151 [2022-01-11 05:38:47,893 INFO L226 Difference]: Without dead ends: 34141 [2022-01-11 05:38:47,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:38:47,921 INFO L933 BasicCegarLoop]: 1601 mSDtfsCounter, 2185 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2185 SdHoareTripleChecker+Valid, 2119 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:38:47,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2185 Valid, 2119 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:38:47,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34141 states. [2022-01-11 05:38:48,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34141 to 27677. [2022-01-11 05:38:48,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27677 states, 27671 states have (on average 1.781323407177189) internal successors, (49291), 27676 states have internal predecessors, (49291), 0 states have call successors, (0), 0 states 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 05:38:48,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27677 states to 27677 states and 49291 transitions. [2022-01-11 05:38:48,990 INFO L78 Accepts]: Start accepts. Automaton has 27677 states and 49291 transitions. Word has length 80 [2022-01-11 05:38:48,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:38:48,991 INFO L470 AbstractCegarLoop]: Abstraction has 27677 states and 49291 transitions. [2022-01-11 05:38:48,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:48,991 INFO L276 IsEmpty]: Start isEmpty. Operand 27677 states and 49291 transitions. [2022-01-11 05:38:49,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-01-11 05:38:49,000 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:38:49,000 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:38:49,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 05:38:49,001 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:38:49,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:38:49,001 INFO L85 PathProgramCache]: Analyzing trace with hash -835814911, now seen corresponding path program 1 times [2022-01-11 05:38:49,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:38:49,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940114230] [2022-01-11 05:38:49,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:38:49,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:38:49,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:38:49,126 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-11 05:38:49,126 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:38:49,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940114230] [2022-01-11 05:38:49,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940114230] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:38:49,126 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:38:49,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-11 05:38:49,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077083010] [2022-01-11 05:38:49,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:38:49,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-11 05:38:49,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:38:49,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-11 05:38:49,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:38:49,128 INFO L87 Difference]: Start difference. First operand 27677 states and 49291 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:51,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:38:51,799 INFO L93 Difference]: Finished difference Result 36068 states and 62214 transitions. [2022-01-11 05:38:51,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-11 05:38:51,800 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-01-11 05:38:51,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:38:51,855 INFO L225 Difference]: With dead ends: 36068 [2022-01-11 05:38:51,855 INFO L226 Difference]: Without dead ends: 35113 [2022-01-11 05:38:51,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=277, Invalid=653, Unknown=0, NotChecked=0, Total=930 [2022-01-11 05:38:51,869 INFO L933 BasicCegarLoop]: 2105 mSDtfsCounter, 6679 mSDsluCounter, 11246 mSDsCounter, 0 mSdLazyCounter, 764 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6679 SdHoareTripleChecker+Valid, 13351 SdHoareTripleChecker+Invalid, 831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-11 05:38:51,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6679 Valid, 13351 Invalid, 831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 764 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-11 05:38:51,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35113 states. [2022-01-11 05:38:52,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35113 to 28727. [2022-01-11 05:38:52,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28727 states, 28721 states have (on average 1.772814317050242) internal successors, (50917), 28726 states have internal predecessors, (50917), 0 states have call successors, (0), 0 states 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 05:38:52,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28727 states to 28727 states and 50917 transitions. [2022-01-11 05:38:52,934 INFO L78 Accepts]: Start accepts. Automaton has 28727 states and 50917 transitions. Word has length 82 [2022-01-11 05:38:52,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:38:52,934 INFO L470 AbstractCegarLoop]: Abstraction has 28727 states and 50917 transitions. [2022-01-11 05:38:52,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:52,935 INFO L276 IsEmpty]: Start isEmpty. Operand 28727 states and 50917 transitions. [2022-01-11 05:38:52,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-11 05:38:52,942 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:38:52,942 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:38:52,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 05:38:52,942 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:38:52,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:38:52,943 INFO L85 PathProgramCache]: Analyzing trace with hash 418180667, now seen corresponding path program 1 times [2022-01-11 05:38:52,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:38:52,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823287650] [2022-01-11 05:38:52,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:38:52,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:38:52,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:38:53,031 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-11 05:38:53,031 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:38:53,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823287650] [2022-01-11 05:38:53,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823287650] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:38:53,032 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:38:53,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-11 05:38:53,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349899741] [2022-01-11 05:38:53,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:38:53,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 05:38:53,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:38:53,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 05:38:53,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:38:53,033 INFO L87 Difference]: Start difference. First operand 28727 states and 50917 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:54,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:38:54,270 INFO L93 Difference]: Finished difference Result 31843 states and 55719 transitions. [2022-01-11 05:38:54,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-11 05:38:54,270 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-01-11 05:38:54,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:38:54,327 INFO L225 Difference]: With dead ends: 31843 [2022-01-11 05:38:54,327 INFO L226 Difference]: Without dead ends: 29793 [2022-01-11 05:38:54,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-01-11 05:38:54,343 INFO L933 BasicCegarLoop]: 1113 mSDtfsCounter, 3156 mSDsluCounter, 3568 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3156 SdHoareTripleChecker+Valid, 4681 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:38:54,343 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3156 Valid, 4681 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:38:54,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29793 states. [2022-01-11 05:38:55,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29793 to 28727. [2022-01-11 05:38:55,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28727 states, 28721 states have (on average 1.771978691549737) internal successors, (50893), 28726 states have internal predecessors, (50893), 0 states have call successors, (0), 0 states 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 05:38:55,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28727 states to 28727 states and 50893 transitions. [2022-01-11 05:38:55,597 INFO L78 Accepts]: Start accepts. Automaton has 28727 states and 50893 transitions. Word has length 83 [2022-01-11 05:38:55,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:38:55,597 INFO L470 AbstractCegarLoop]: Abstraction has 28727 states and 50893 transitions. [2022-01-11 05:38:55,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:55,597 INFO L276 IsEmpty]: Start isEmpty. Operand 28727 states and 50893 transitions. [2022-01-11 05:38:55,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-11 05:38:55,604 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:38:55,605 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:38:55,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-11 05:38:55,605 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:38:55,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:38:55,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1771490364, now seen corresponding path program 1 times [2022-01-11 05:38:55,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:38:55,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98061183] [2022-01-11 05:38:55,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:38:55,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:38:55,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:38:55,700 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-11 05:38:55,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:38:55,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98061183] [2022-01-11 05:38:55,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98061183] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:38:55,700 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:38:55,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:38:55,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489299952] [2022-01-11 05:38:55,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:38:55,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:38:55,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:38:55,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:38:55,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:38:55,702 INFO L87 Difference]: Start difference. First operand 28727 states and 50893 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:56,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:38:56,862 INFO L93 Difference]: Finished difference Result 29885 states and 52717 transitions. [2022-01-11 05:38:56,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:38:56,862 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-01-11 05:38:56,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:38:56,863 INFO L225 Difference]: With dead ends: 29885 [2022-01-11 05:38:56,863 INFO L226 Difference]: Without dead ends: 0 [2022-01-11 05:38:56,876 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 05:38:56,877 INFO L933 BasicCegarLoop]: 1451 mSDtfsCounter, 834 mSDsluCounter, 2066 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 834 SdHoareTripleChecker+Valid, 3517 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:38:56,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [834 Valid, 3517 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:38:56,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-11 05:38:56,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-11 05:38:56,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states 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 05:38:56,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-11 05:38:56,877 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 83 [2022-01-11 05:38:56,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:38:56,878 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-11 05:38:56,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:56,878 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-11 05:38:56,878 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-11 05:38:56,880 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2022-01-11 05:38:56,881 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2022-01-11 05:38:56,881 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2022-01-11 05:38:56,881 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2022-01-11 05:38:56,881 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2022-01-11 05:38:56,881 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-01-11 05:38:56,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-11 05:38:56,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-11 05:39:02,255 WARN L228 SmtUtils]: Spent 5.36s on a formula simplification. DAG size of input: 162 DAG size of output: 162 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or)