/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_spec4_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 05:44:25,421 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 05:44:25,424 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 05:44:25,477 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 05:44:25,477 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 05:44:25,478 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 05:44:25,500 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 05:44:25,502 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 05:44:25,503 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 05:44:25,504 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 05:44:25,505 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 05:44:25,505 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 05:44:25,506 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 05:44:25,507 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 05:44:25,508 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 05:44:25,509 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 05:44:25,509 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 05:44:25,510 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 05:44:25,511 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 05:44:25,513 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 05:44:25,514 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 05:44:25,515 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 05:44:25,516 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 05:44:25,517 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 05:44:25,519 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 05:44:25,519 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 05:44:25,519 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 05:44:25,520 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 05:44:25,521 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 05:44:25,521 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 05:44:25,522 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 05:44:25,522 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 05:44:25,523 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 05:44:25,523 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 05:44:25,524 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 05:44:25,524 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 05:44:25,525 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 05:44:25,525 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 05:44:25,525 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 05:44:25,526 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 05:44:25,527 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 05:44:25,529 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 05:44:25,550 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 05:44:25,550 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 05:44:25,550 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 05:44:25,550 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 05:44:25,551 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 05:44:25,551 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 05:44:25,551 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 05:44:25,551 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 05:44:25,551 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 05:44:25,551 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 05:44:25,552 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 05:44:25,552 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 05:44:25,552 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 05:44:25,552 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 05:44:25,552 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 05:44:25,552 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 05:44:25,552 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 05:44:25,552 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 05:44:25,553 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 05:44:25,553 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 05:44:25,553 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 05:44:25,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:44:25,553 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 05:44:25,553 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 05:44:25,553 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 05:44:25,553 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 05:44:25,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 05:44:25,554 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 05:44:25,554 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 05:44:25,554 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 05:44:25,554 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 05:44:25,554 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 05:44:25,555 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 05:44:25,555 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 05:44:25,755 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 05:44:25,777 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 05:44:25,779 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 05:44:25,779 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 05:44:25,781 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 05:44:25,782 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product27.cil.c [2022-01-11 05:44:25,841 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eaaaae9a4/bbbe7abe98d24b0eab0d7fdcdc6c5594/FLAG2908aa66b [2022-01-11 05:44:26,400 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 05:44:26,401 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product27.cil.c [2022-01-11 05:44:26,420 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eaaaae9a4/bbbe7abe98d24b0eab0d7fdcdc6c5594/FLAG2908aa66b [2022-01-11 05:44:26,850 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eaaaae9a4/bbbe7abe98d24b0eab0d7fdcdc6c5594 [2022-01-11 05:44:26,852 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 05:44:26,853 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 05:44:26,855 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 05:44:26,855 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 05:44:26,857 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 05:44:26,858 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:44:26" (1/1) ... [2022-01-11 05:44:26,859 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2558c220 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:44:26, skipping insertion in model container [2022-01-11 05:44:26,859 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:44:26" (1/1) ... [2022-01-11 05:44:26,864 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 05:44:26,950 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:44:27,089 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_spec4_product27.cil.c[1542,1555] [2022-01-11 05:44:27,409 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:44:27,426 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 05:44:27,443 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:44:27,447 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_spec4_product27.cil.c[1542,1555] [2022-01-11 05:44:27,543 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:44:27,554 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 05:44:27,564 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_spec4_product27.cil.c[1542,1555] [2022-01-11 05:44:27,643 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:44:27,679 INFO L208 MainTranslator]: Completed translation [2022-01-11 05:44:27,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:44:27 WrapperNode [2022-01-11 05:44:27,680 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 05:44:27,681 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 05:44:27,681 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 05:44:27,682 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 05:44:27,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:44:27" (1/1) ... [2022-01-11 05:44:27,728 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:44:27" (1/1) ... [2022-01-11 05:44:27,842 INFO L137 Inliner]: procedures = 135, calls = 228, calls flagged for inlining = 135, calls inlined = 348, statements flattened = 5090 [2022-01-11 05:44:27,842 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 05:44:27,849 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 05:44:27,849 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 05:44:27,850 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 05:44:27,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:44:27" (1/1) ... [2022-01-11 05:44:27,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:44:27" (1/1) ... [2022-01-11 05:44:27,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:44:27" (1/1) ... [2022-01-11 05:44:27,874 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:44:27" (1/1) ... [2022-01-11 05:44:27,965 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:44:27" (1/1) ... [2022-01-11 05:44:27,987 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:44:27" (1/1) ... [2022-01-11 05:44:27,996 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:44:27" (1/1) ... [2022-01-11 05:44:28,021 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 05:44:28,022 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 05:44:28,022 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 05:44:28,022 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 05:44:28,026 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:44:27" (1/1) ... [2022-01-11 05:44:28,032 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:44:28,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:44:28,052 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 05:44:28,079 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 05:44:28,092 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-01-11 05:44:28,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 05:44:28,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 05:44:28,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 05:44:28,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 05:44:28,357 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 05:44:28,358 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 05:44:30,317 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 05:44:30,340 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 05:44:30,340 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 05:44:30,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:44:30 BoogieIcfgContainer [2022-01-11 05:44:30,343 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 05:44:30,345 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 05:44:30,345 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 05:44:30,347 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 05:44:30,349 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:44:30" (1/1) ... [2022-01-11 05:44:30,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:44:30 BasicIcfg [2022-01-11 05:44:30,778 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 05:44:30,779 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 05:44:30,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 05:44:30,782 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 05:44:30,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:44:26" (1/4) ... [2022-01-11 05:44:30,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7063d4d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:44:30, skipping insertion in model container [2022-01-11 05:44:30,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:44:27" (2/4) ... [2022-01-11 05:44:30,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7063d4d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:44:30, skipping insertion in model container [2022-01-11 05:44:30,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:44:30" (3/4) ... [2022-01-11 05:44:30,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7063d4d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:44:30, skipping insertion in model container [2022-01-11 05:44:30,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:44:30" (4/4) ... [2022-01-11 05:44:30,784 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec4_product27.cil.cTransformedIcfg [2022-01-11 05:44:30,788 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 05:44:30,788 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-01-11 05:44:30,840 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 05:44:30,845 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 05:44:30,845 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-11 05:44:30,879 INFO L276 IsEmpty]: Start isEmpty. Operand has 1079 states, 1072 states have (on average 1.666044776119403) internal successors, (1786), 1078 states have internal predecessors, (1786), 0 states have call successors, (0), 0 states 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 05:44:30,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-01-11 05:44:30,898 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:44:30,899 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] [2022-01-11 05:44:30,900 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:44:30,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:44:30,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1292418958, now seen corresponding path program 1 times [2022-01-11 05:44:30,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:44:30,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780579290] [2022-01-11 05:44:30,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:44:30,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:44:31,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:44:31,272 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 05:44:31,273 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:44:31,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780579290] [2022-01-11 05:44:31,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780579290] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:44:31,274 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:44:31,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 05:44:31,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240799538] [2022-01-11 05:44:31,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:44:31,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-11 05:44:31,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:44:31,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-11 05:44:31,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 05:44:31,312 INFO L87 Difference]: Start difference. First operand has 1079 states, 1072 states have (on average 1.666044776119403) internal successors, (1786), 1078 states have internal predecessors, (1786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 0 states have call successors, (0), 0 states 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 05:44:31,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:44:31,393 INFO L93 Difference]: Finished difference Result 1844 states and 3017 transitions. [2022-01-11 05:44:31,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-11 05:44:31,395 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2022-01-11 05:44:31,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:44:31,418 INFO L225 Difference]: With dead ends: 1844 [2022-01-11 05:44:31,418 INFO L226 Difference]: Without dead ends: 889 [2022-01-11 05:44:31,425 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 05:44:31,427 INFO L933 BasicCegarLoop]: 1772 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, 1772 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 05:44:31,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1772 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:44:31,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2022-01-11 05:44:31,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 889. [2022-01-11 05:44:31,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 889 states, 883 states have (on average 1.6772366930917326) internal successors, (1481), 888 states have internal predecessors, (1481), 0 states have call successors, (0), 0 states 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 05:44:31,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 889 states to 889 states and 1481 transitions. [2022-01-11 05:44:31,522 INFO L78 Accepts]: Start accepts. Automaton has 889 states and 1481 transitions. Word has length 50 [2022-01-11 05:44:31,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:44:31,523 INFO L470 AbstractCegarLoop]: Abstraction has 889 states and 1481 transitions. [2022-01-11 05:44:31,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 0 states have call successors, (0), 0 states 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 05:44:31,524 INFO L276 IsEmpty]: Start isEmpty. Operand 889 states and 1481 transitions. [2022-01-11 05:44:31,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-11 05:44:31,526 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:44:31,526 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:44:31,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 05:44:31,526 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:44:31,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:44:31,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1055378512, now seen corresponding path program 1 times [2022-01-11 05:44:31,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:44:31,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749171800] [2022-01-11 05:44:31,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:44:31,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:44:31,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:44:31,802 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 05:44:31,802 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:44:31,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749171800] [2022-01-11 05:44:31,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749171800] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:44:31,803 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:44:31,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:44:31,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301880460] [2022-01-11 05:44:31,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:44:31,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:44:31,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:44:31,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:44:31,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:44:31,805 INFO L87 Difference]: Start difference. First operand 889 states and 1481 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:44:31,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:44:31,962 INFO L93 Difference]: Finished difference Result 1759 states and 2934 transitions. [2022-01-11 05:44:31,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:44:31,963 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-01-11 05:44:31,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:44:31,967 INFO L225 Difference]: With dead ends: 1759 [2022-01-11 05:44:31,967 INFO L226 Difference]: Without dead ends: 889 [2022-01-11 05:44:31,968 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 05:44:31,969 INFO L933 BasicCegarLoop]: 1459 mSDtfsCounter, 1456 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1456 SdHoareTripleChecker+Valid, 1472 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:44:31,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1456 Valid, 1472 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:44:31,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2022-01-11 05:44:32,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 889. [2022-01-11 05:44:32,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 889 states, 883 states have (on average 1.6749716874292186) internal successors, (1479), 888 states have internal predecessors, (1479), 0 states have call successors, (0), 0 states 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 05:44:32,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 889 states to 889 states and 1479 transitions. [2022-01-11 05:44:32,025 INFO L78 Accepts]: Start accepts. Automaton has 889 states and 1479 transitions. Word has length 51 [2022-01-11 05:44:32,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:44:32,027 INFO L470 AbstractCegarLoop]: Abstraction has 889 states and 1479 transitions. [2022-01-11 05:44:32,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:44:32,029 INFO L276 IsEmpty]: Start isEmpty. Operand 889 states and 1479 transitions. [2022-01-11 05:44:32,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-01-11 05:44:32,037 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:44:32,037 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] [2022-01-11 05:44:32,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 05:44:32,037 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:44:32,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:44:32,038 INFO L85 PathProgramCache]: Analyzing trace with hash -427169488, now seen corresponding path program 1 times [2022-01-11 05:44:32,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:44:32,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942188817] [2022-01-11 05:44:32,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:44:32,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:44:32,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:44:32,240 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 05:44:32,241 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:44:32,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942188817] [2022-01-11 05:44:32,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942188817] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:44:32,241 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:44:32,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:44:32,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994076866] [2022-01-11 05:44:32,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:44:32,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:44:32,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:44:32,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:44:32,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:44:32,243 INFO L87 Difference]: Start difference. First operand 889 states and 1479 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states 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 05:44:32,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:44:32,609 INFO L93 Difference]: Finished difference Result 4313 states and 7191 transitions. [2022-01-11 05:44:32,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-11 05:44:32,610 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2022-01-11 05:44:32,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:44:32,629 INFO L225 Difference]: With dead ends: 4313 [2022-01-11 05:44:32,629 INFO L226 Difference]: Without dead ends: 3448 [2022-01-11 05:44:32,634 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 05:44:32,636 INFO L933 BasicCegarLoop]: 2881 mSDtfsCounter, 7178 mSDsluCounter, 4309 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7178 SdHoareTripleChecker+Valid, 7190 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 05:44:32,636 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7178 Valid, 7190 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:44:32,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3448 states. [2022-01-11 05:44:32,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3448 to 889. [2022-01-11 05:44:32,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 889 states, 883 states have (on average 1.6738391845979614) internal successors, (1478), 888 states have internal predecessors, (1478), 0 states have call successors, (0), 0 states 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 05:44:32,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 889 states to 889 states and 1478 transitions. [2022-01-11 05:44:32,701 INFO L78 Accepts]: Start accepts. Automaton has 889 states and 1478 transitions. Word has length 53 [2022-01-11 05:44:32,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:44:32,701 INFO L470 AbstractCegarLoop]: Abstraction has 889 states and 1478 transitions. [2022-01-11 05:44:32,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states 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 05:44:32,702 INFO L276 IsEmpty]: Start isEmpty. Operand 889 states and 1478 transitions. [2022-01-11 05:44:32,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-11 05:44:32,703 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:44:32,703 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] [2022-01-11 05:44:32,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 05:44:32,703 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:44:32,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:44:32,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1542219432, now seen corresponding path program 1 times [2022-01-11 05:44:32,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:44:32,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823980804] [2022-01-11 05:44:32,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:44:32,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:44:32,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:44:32,806 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 05:44:32,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:44:32,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823980804] [2022-01-11 05:44:32,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823980804] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:44:32,807 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:44:32,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:44:32,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983354803] [2022-01-11 05:44:32,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:44:32,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:44:32,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:44:32,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:44:32,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:44:32,808 INFO L87 Difference]: Start difference. First operand 889 states and 1478 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states 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 05:44:32,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:44:32,893 INFO L93 Difference]: Finished difference Result 1763 states and 2934 transitions. [2022-01-11 05:44:32,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:44:32,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2022-01-11 05:44:32,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:44:32,899 INFO L225 Difference]: With dead ends: 1763 [2022-01-11 05:44:32,900 INFO L226 Difference]: Without dead ends: 903 [2022-01-11 05:44:32,901 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 05:44:32,909 INFO L933 BasicCegarLoop]: 1492 mSDtfsCounter, 1457 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1457 SdHoareTripleChecker+Valid, 1514 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 05:44:32,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1457 Valid, 1514 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:44:32,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2022-01-11 05:44:32,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 889. [2022-01-11 05:44:32,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 889 states, 883 states have (on average 1.6727066817667045) internal successors, (1477), 888 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states 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 05:44:32,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 889 states to 889 states and 1477 transitions. [2022-01-11 05:44:32,954 INFO L78 Accepts]: Start accepts. Automaton has 889 states and 1477 transitions. Word has length 54 [2022-01-11 05:44:32,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:44:32,955 INFO L470 AbstractCegarLoop]: Abstraction has 889 states and 1477 transitions. [2022-01-11 05:44:32,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states 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 05:44:32,955 INFO L276 IsEmpty]: Start isEmpty. Operand 889 states and 1477 transitions. [2022-01-11 05:44:32,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-11 05:44:32,956 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:44:32,956 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 05:44:32,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 05:44:32,957 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:44:32,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:44:32,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1271703185, now seen corresponding path program 1 times [2022-01-11 05:44:32,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:44:32,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262107263] [2022-01-11 05:44:32,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:44:32,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:44:33,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:44:33,097 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 05:44:33,097 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:44:33,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262107263] [2022-01-11 05:44:33,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262107263] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:44:33,098 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:44:33,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:44:33,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624817275] [2022-01-11 05:44:33,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:44:33,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:44:33,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:44:33,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:44:33,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:44:33,100 INFO L87 Difference]: Start difference. First operand 889 states and 1477 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 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 05:44:33,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:44:33,350 INFO L93 Difference]: Finished difference Result 2601 states and 4331 transitions. [2022-01-11 05:44:33,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:44:33,351 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 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 05:44:33,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:44:33,359 INFO L225 Difference]: With dead ends: 2601 [2022-01-11 05:44:33,359 INFO L226 Difference]: Without dead ends: 1746 [2022-01-11 05:44:33,362 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 05:44:33,363 INFO L933 BasicCegarLoop]: 1486 mSDtfsCounter, 7101 mSDsluCounter, 1500 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7101 SdHoareTripleChecker+Valid, 2986 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 05:44:33,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7101 Valid, 2986 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:44:33,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1746 states. [2022-01-11 05:44:33,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1746 to 889. [2022-01-11 05:44:33,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 889 states, 883 states have (on average 1.6704416761041903) internal successors, (1475), 888 states have internal predecessors, (1475), 0 states have call successors, (0), 0 states 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 05:44:33,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 889 states to 889 states and 1475 transitions. [2022-01-11 05:44:33,445 INFO L78 Accepts]: Start accepts. Automaton has 889 states and 1475 transitions. Word has length 55 [2022-01-11 05:44:33,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:44:33,446 INFO L470 AbstractCegarLoop]: Abstraction has 889 states and 1475 transitions. [2022-01-11 05:44:33,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 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 05:44:33,446 INFO L276 IsEmpty]: Start isEmpty. Operand 889 states and 1475 transitions. [2022-01-11 05:44:33,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-01-11 05:44:33,447 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:44:33,447 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] [2022-01-11 05:44:33,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 05:44:33,447 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:44:33,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:44:33,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1917571502, now seen corresponding path program 1 times [2022-01-11 05:44:33,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:44:33,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582592010] [2022-01-11 05:44:33,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:44:33,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:44:33,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:44:33,566 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 05:44:33,566 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:44:33,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582592010] [2022-01-11 05:44:33,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582592010] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:44:33,566 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:44:33,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 05:44:33,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030704315] [2022-01-11 05:44:33,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:44:33,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:44:33,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:44:33,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:44:33,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:44:33,568 INFO L87 Difference]: Start difference. First operand 889 states and 1475 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states 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 05:44:34,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:44:34,483 INFO L93 Difference]: Finished difference Result 6878 states and 11184 transitions. [2022-01-11 05:44:34,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-11 05:44:34,484 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2022-01-11 05:44:34,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:44:34,511 INFO L225 Difference]: With dead ends: 6878 [2022-01-11 05:44:34,511 INFO L226 Difference]: Without dead ends: 6316 [2022-01-11 05:44:34,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-01-11 05:44:34,518 INFO L933 BasicCegarLoop]: 2617 mSDtfsCounter, 11728 mSDsluCounter, 9930 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11728 SdHoareTripleChecker+Valid, 12547 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-11 05:44:34,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11728 Valid, 12547 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-11 05:44:34,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6316 states. [2022-01-11 05:44:34,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6316 to 1568. [2022-01-11 05:44:34,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1562 states have (on average 1.6747759282970551) internal successors, (2616), 1567 states have internal predecessors, (2616), 0 states have call successors, (0), 0 states 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 05:44:34,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2616 transitions. [2022-01-11 05:44:34,710 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2616 transitions. Word has length 57 [2022-01-11 05:44:34,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:44:34,712 INFO L470 AbstractCegarLoop]: Abstraction has 1568 states and 2616 transitions. [2022-01-11 05:44:34,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states 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 05:44:34,713 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2616 transitions. [2022-01-11 05:44:34,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-11 05:44:34,714 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:44:34,714 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 05:44:34,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 05:44:34,715 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:44:34,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:44:34,715 INFO L85 PathProgramCache]: Analyzing trace with hash -483440953, now seen corresponding path program 1 times [2022-01-11 05:44:34,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:44:34,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217981665] [2022-01-11 05:44:34,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:44:34,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:44:34,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:44:34,841 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 05:44:34,841 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:44:34,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217981665] [2022-01-11 05:44:34,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217981665] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:44:34,842 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:44:34,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:44:34,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986637496] [2022-01-11 05:44:34,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:44:34,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:44:34,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:44:34,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:44:34,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:44:34,843 INFO L87 Difference]: Start difference. First operand 1568 states and 2616 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 05:44:35,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:44:35,143 INFO L93 Difference]: Finished difference Result 3307 states and 5394 transitions. [2022-01-11 05:44:35,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:44:35,143 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 05:44:35,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:44:35,152 INFO L225 Difference]: With dead ends: 3307 [2022-01-11 05:44:35,152 INFO L226 Difference]: Without dead ends: 2365 [2022-01-11 05:44:35,154 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 05:44:35,155 INFO L933 BasicCegarLoop]: 1457 mSDtfsCounter, 4799 mSDsluCounter, 1843 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4799 SdHoareTripleChecker+Valid, 3300 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:44:35,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4799 Valid, 3300 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:44:35,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2365 states. [2022-01-11 05:44:35,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2365 to 1568. [2022-01-11 05:44:35,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1562 states have (on average 1.6722151088348272) internal successors, (2612), 1567 states have internal predecessors, (2612), 0 states have call successors, (0), 0 states 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 05:44:35,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2612 transitions. [2022-01-11 05:44:35,269 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2612 transitions. Word has length 58 [2022-01-11 05:44:35,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:44:35,269 INFO L470 AbstractCegarLoop]: Abstraction has 1568 states and 2612 transitions. [2022-01-11 05:44:35,269 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 05:44:35,269 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2612 transitions. [2022-01-11 05:44:35,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-11 05:44:35,271 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:44:35,271 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 05:44:35,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 05:44:35,271 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:44:35,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:44:35,272 INFO L85 PathProgramCache]: Analyzing trace with hash 53084946, now seen corresponding path program 1 times [2022-01-11 05:44:35,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:44:35,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398530607] [2022-01-11 05:44:35,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:44:35,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:44:35,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:44:35,341 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 05:44:35,341 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:44:35,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398530607] [2022-01-11 05:44:35,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398530607] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:44:35,342 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:44:35,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:44:35,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315682204] [2022-01-11 05:44:35,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:44:35,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:44:35,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:44:35,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:44:35,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:44:35,343 INFO L87 Difference]: Start difference. First operand 1568 states and 2612 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 05:44:35,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:44:35,688 INFO L93 Difference]: Finished difference Result 4581 states and 7665 transitions. [2022-01-11 05:44:35,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:44:35,688 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 05:44:35,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:44:35,700 INFO L225 Difference]: With dead ends: 4581 [2022-01-11 05:44:35,700 INFO L226 Difference]: Without dead ends: 3050 [2022-01-11 05:44:35,703 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 05:44:35,703 INFO L933 BasicCegarLoop]: 2849 mSDtfsCounter, 4356 mSDsluCounter, 1426 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4356 SdHoareTripleChecker+Valid, 4275 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:44:35,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4356 Valid, 4275 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:44:35,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3050 states. [2022-01-11 05:44:35,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3050 to 1568. [2022-01-11 05:44:35,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1562 states have (on average 1.6709346991037133) internal successors, (2610), 1567 states have internal predecessors, (2610), 0 states have call successors, (0), 0 states 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 05:44:35,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2610 transitions. [2022-01-11 05:44:35,857 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2610 transitions. Word has length 58 [2022-01-11 05:44:35,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:44:35,857 INFO L470 AbstractCegarLoop]: Abstraction has 1568 states and 2610 transitions. [2022-01-11 05:44:35,857 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 05:44:35,858 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2610 transitions. [2022-01-11 05:44:35,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-11 05:44:35,859 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:44:35,859 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 05:44:35,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 05:44:35,859 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:44:35,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:44:35,860 INFO L85 PathProgramCache]: Analyzing trace with hash -366993606, now seen corresponding path program 1 times [2022-01-11 05:44:35,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:44:35,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268414363] [2022-01-11 05:44:35,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:44:35,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:44:35,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:44:35,965 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 05:44:35,965 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:44:35,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268414363] [2022-01-11 05:44:35,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268414363] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:44:35,966 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:44:35,966 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:44:35,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598451762] [2022-01-11 05:44:35,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:44:35,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:44:35,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:44:35,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:44:35,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:44:35,967 INFO L87 Difference]: Start difference. First operand 1568 states and 2610 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 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 05:44:37,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:44:37,095 INFO L93 Difference]: Finished difference Result 7690 states and 12374 transitions. [2022-01-11 05:44:37,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:44:37,095 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 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 05:44:37,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:44:37,121 INFO L225 Difference]: With dead ends: 7690 [2022-01-11 05:44:37,122 INFO L226 Difference]: Without dead ends: 6852 [2022-01-11 05:44:37,124 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 05:44:37,124 INFO L933 BasicCegarLoop]: 1451 mSDtfsCounter, 7987 mSDsluCounter, 4858 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7987 SdHoareTripleChecker+Valid, 6309 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-11 05:44:37,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7987 Valid, 6309 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-11 05:44:37,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6852 states. [2022-01-11 05:44:37,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6852 to 2502. [2022-01-11 05:44:37,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2502 states, 2496 states have (on average 1.6458333333333333) internal successors, (4108), 2501 states have internal predecessors, (4108), 0 states have call successors, (0), 0 states 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 05:44:37,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2502 states to 2502 states and 4108 transitions. [2022-01-11 05:44:37,401 INFO L78 Accepts]: Start accepts. Automaton has 2502 states and 4108 transitions. Word has length 59 [2022-01-11 05:44:37,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:44:37,401 INFO L470 AbstractCegarLoop]: Abstraction has 2502 states and 4108 transitions. [2022-01-11 05:44:37,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 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 05:44:37,402 INFO L276 IsEmpty]: Start isEmpty. Operand 2502 states and 4108 transitions. [2022-01-11 05:44:37,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-11 05:44:37,403 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:44:37,403 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 05:44:37,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 05:44:37,404 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:44:37,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:44:37,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1480968429, now seen corresponding path program 1 times [2022-01-11 05:44:37,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:44:37,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754360685] [2022-01-11 05:44:37,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:44:37,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:44:37,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:44:37,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:44:37,495 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:44:37,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754360685] [2022-01-11 05:44:37,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754360685] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:44:37,495 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:44:37,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:44:37,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562841932] [2022-01-11 05:44:37,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:44:37,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:44:37,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:44:37,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:44:37,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:44:37,496 INFO L87 Difference]: Start difference. First operand 2502 states and 4108 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 05:44:38,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:44:38,509 INFO L93 Difference]: Finished difference Result 8598 states and 13758 transitions. [2022-01-11 05:44:38,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-11 05:44:38,510 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 05:44:38,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:44:38,526 INFO L225 Difference]: With dead ends: 8598 [2022-01-11 05:44:38,527 INFO L226 Difference]: Without dead ends: 6930 [2022-01-11 05:44:38,530 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 05:44:38,531 INFO L933 BasicCegarLoop]: 1456 mSDtfsCounter, 5380 mSDsluCounter, 3880 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5380 SdHoareTripleChecker+Valid, 5336 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:44:38,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5380 Valid, 5336 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 05:44:38,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6930 states. [2022-01-11 05:44:38,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6930 to 2548. [2022-01-11 05:44:38,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2548 states, 2542 states have (on average 1.6388670338316287) internal successors, (4166), 2547 states have internal predecessors, (4166), 0 states have call successors, (0), 0 states 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 05:44:38,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2548 states to 2548 states and 4166 transitions. [2022-01-11 05:44:38,831 INFO L78 Accepts]: Start accepts. Automaton has 2548 states and 4166 transitions. Word has length 60 [2022-01-11 05:44:38,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:44:38,831 INFO L470 AbstractCegarLoop]: Abstraction has 2548 states and 4166 transitions. [2022-01-11 05:44:38,832 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 05:44:38,832 INFO L276 IsEmpty]: Start isEmpty. Operand 2548 states and 4166 transitions. [2022-01-11 05:44:38,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-11 05:44:38,833 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:44:38,834 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] [2022-01-11 05:44:38,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 05:44:38,834 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:44:38,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:44:38,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1843047562, now seen corresponding path program 1 times [2022-01-11 05:44:38,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:44:38,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877041307] [2022-01-11 05:44:38,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:44:38,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:44:38,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:44:38,955 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 05:44:38,955 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:44:38,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877041307] [2022-01-11 05:44:38,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877041307] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:44:38,956 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:44:38,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:44:38,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459631816] [2022-01-11 05:44:38,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:44:38,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:44:38,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:44:38,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:44:38,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:44:38,957 INFO L87 Difference]: Start difference. First operand 2548 states and 4166 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states 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 05:44:41,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:44:41,521 INFO L93 Difference]: Finished difference Result 20371 states and 32541 transitions. [2022-01-11 05:44:41,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-11 05:44:41,522 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2022-01-11 05:44:41,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:44:41,568 INFO L225 Difference]: With dead ends: 20371 [2022-01-11 05:44:41,568 INFO L226 Difference]: Without dead ends: 19993 [2022-01-11 05:44:41,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=218, Invalid=538, Unknown=0, NotChecked=0, Total=756 [2022-01-11 05:44:41,577 INFO L933 BasicCegarLoop]: 5151 mSDtfsCounter, 10050 mSDsluCounter, 21319 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10050 SdHoareTripleChecker+Valid, 26470 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-11 05:44:41,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10050 Valid, 26470 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-11 05:44:41,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19993 states. [2022-01-11 05:44:42,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19993 to 3700. [2022-01-11 05:44:42,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3700 states, 3694 states have (on average 1.6272333513806172) internal successors, (6011), 3699 states have internal predecessors, (6011), 0 states have call successors, (0), 0 states 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 05:44:42,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3700 states to 3700 states and 6011 transitions. [2022-01-11 05:44:42,068 INFO L78 Accepts]: Start accepts. Automaton has 3700 states and 6011 transitions. Word has length 61 [2022-01-11 05:44:42,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:44:42,068 INFO L470 AbstractCegarLoop]: Abstraction has 3700 states and 6011 transitions. [2022-01-11 05:44:42,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states 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 05:44:42,069 INFO L276 IsEmpty]: Start isEmpty. Operand 3700 states and 6011 transitions. [2022-01-11 05:44:42,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-11 05:44:42,071 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:44:42,071 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] [2022-01-11 05:44:42,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 05:44:42,071 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:44:42,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:44:42,072 INFO L85 PathProgramCache]: Analyzing trace with hash 872012280, now seen corresponding path program 1 times [2022-01-11 05:44:42,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:44:42,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377647110] [2022-01-11 05:44:42,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:44:42,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:44:42,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:44:42,191 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 05:44:42,191 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:44:42,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377647110] [2022-01-11 05:44:42,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377647110] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:44:42,192 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:44:42,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:44:42,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731688717] [2022-01-11 05:44:42,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:44:42,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:44:42,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:44:42,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:44:42,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:44:42,193 INFO L87 Difference]: Start difference. First operand 3700 states and 6011 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states 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 05:44:43,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:44:43,198 INFO L93 Difference]: Finished difference Result 8631 states and 13840 transitions. [2022-01-11 05:44:43,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-11 05:44:43,199 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2022-01-11 05:44:43,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:44:43,212 INFO L225 Difference]: With dead ends: 8631 [2022-01-11 05:44:43,212 INFO L226 Difference]: Without dead ends: 5917 [2022-01-11 05:44:43,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2022-01-11 05:44:43,218 INFO L933 BasicCegarLoop]: 1473 mSDtfsCounter, 7075 mSDsluCounter, 5067 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7075 SdHoareTripleChecker+Valid, 6540 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:44:43,219 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7075 Valid, 6540 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:44:43,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5917 states. [2022-01-11 05:44:43,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5917 to 3577. [2022-01-11 05:44:43,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3577 states, 3571 states have (on average 1.626155138616634) internal successors, (5807), 3576 states have internal predecessors, (5807), 0 states have call successors, (0), 0 states 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 05:44:43,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3577 states to 3577 states and 5807 transitions. [2022-01-11 05:44:43,706 INFO L78 Accepts]: Start accepts. Automaton has 3577 states and 5807 transitions. Word has length 61 [2022-01-11 05:44:43,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:44:43,707 INFO L470 AbstractCegarLoop]: Abstraction has 3577 states and 5807 transitions. [2022-01-11 05:44:43,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states 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 05:44:43,707 INFO L276 IsEmpty]: Start isEmpty. Operand 3577 states and 5807 transitions. [2022-01-11 05:44:43,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-01-11 05:44:43,709 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:44:43,709 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 05:44:43,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 05:44:43,710 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:44:43,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:44:43,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1298972817, now seen corresponding path program 1 times [2022-01-11 05:44:43,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:44:43,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944616209] [2022-01-11 05:44:43,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:44:43,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:44:43,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:44:43,819 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 05:44:43,819 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:44:43,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944616209] [2022-01-11 05:44:43,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944616209] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:44:43,820 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:44:43,820 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 05:44:43,820 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888820714] [2022-01-11 05:44:43,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:44:43,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:44:43,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:44:43,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:44:43,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:44:43,821 INFO L87 Difference]: Start difference. First operand 3577 states and 5807 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 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 05:44:45,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:44:45,525 INFO L93 Difference]: Finished difference Result 11817 states and 18827 transitions. [2022-01-11 05:44:45,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-11 05:44:45,526 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 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 05:44:45,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:44:45,543 INFO L225 Difference]: With dead ends: 11817 [2022-01-11 05:44:45,543 INFO L226 Difference]: Without dead ends: 10253 [2022-01-11 05:44:45,547 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-01-11 05:44:45,548 INFO L933 BasicCegarLoop]: 1929 mSDtfsCounter, 6222 mSDsluCounter, 5941 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6222 SdHoareTripleChecker+Valid, 7870 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-11 05:44:45,548 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6222 Valid, 7870 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-11 05:44:45,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10253 states. [2022-01-11 05:44:46,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10253 to 3783. [2022-01-11 05:44:46,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3783 states, 3777 states have (on average 1.6155679110405083) internal successors, (6102), 3782 states have internal predecessors, (6102), 0 states have call successors, (0), 0 states 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 05:44:46,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3783 states to 3783 states and 6102 transitions. [2022-01-11 05:44:46,304 INFO L78 Accepts]: Start accepts. Automaton has 3783 states and 6102 transitions. Word has length 62 [2022-01-11 05:44:46,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:44:46,305 INFO L470 AbstractCegarLoop]: Abstraction has 3783 states and 6102 transitions. [2022-01-11 05:44:46,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 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 05:44:46,306 INFO L276 IsEmpty]: Start isEmpty. Operand 3783 states and 6102 transitions. [2022-01-11 05:44:46,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-11 05:44:46,309 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:44:46,309 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 05:44:46,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 05:44:46,309 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:44:46,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:44:46,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1611512012, now seen corresponding path program 1 times [2022-01-11 05:44:46,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:44:46,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448585519] [2022-01-11 05:44:46,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:44:46,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:44:46,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:44:46,450 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 05:44:46,450 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:44:46,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448585519] [2022-01-11 05:44:46,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448585519] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:44:46,450 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:44:46,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 05:44:46,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734040535] [2022-01-11 05:44:46,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:44:46,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:44:46,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:44:46,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:44:46,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:44:46,452 INFO L87 Difference]: Start difference. First operand 3783 states and 6102 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 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 05:44:48,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:44:48,265 INFO L93 Difference]: Finished difference Result 11907 states and 18927 transitions. [2022-01-11 05:44:48,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-11 05:44:48,265 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 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 05:44:48,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:44:48,279 INFO L225 Difference]: With dead ends: 11907 [2022-01-11 05:44:48,279 INFO L226 Difference]: Without dead ends: 10115 [2022-01-11 05:44:48,283 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-01-11 05:44:48,283 INFO L933 BasicCegarLoop]: 1953 mSDtfsCounter, 6145 mSDsluCounter, 5941 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6145 SdHoareTripleChecker+Valid, 7894 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-11 05:44:48,284 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6145 Valid, 7894 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-11 05:44:48,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10115 states. [2022-01-11 05:44:48,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10115 to 3721. [2022-01-11 05:44:48,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3721 states, 3715 states have (on average 1.6185733512786002) internal successors, (6013), 3720 states have internal predecessors, (6013), 0 states have call successors, (0), 0 states 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 05:44:48,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3721 states to 3721 states and 6013 transitions. [2022-01-11 05:44:48,752 INFO L78 Accepts]: Start accepts. Automaton has 3721 states and 6013 transitions. Word has length 63 [2022-01-11 05:44:48,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:44:48,752 INFO L470 AbstractCegarLoop]: Abstraction has 3721 states and 6013 transitions. [2022-01-11 05:44:48,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 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 05:44:48,752 INFO L276 IsEmpty]: Start isEmpty. Operand 3721 states and 6013 transitions. [2022-01-11 05:44:48,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-11 05:44:48,754 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:44:48,755 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 05:44:48,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 05:44:48,755 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:44:48,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:44:48,755 INFO L85 PathProgramCache]: Analyzing trace with hash -720665169, now seen corresponding path program 1 times [2022-01-11 05:44:48,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:44:48,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157985664] [2022-01-11 05:44:48,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:44:48,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:44:48,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:44:48,835 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 05:44:48,835 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:44:48,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157985664] [2022-01-11 05:44:48,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157985664] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:44:48,836 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:44:48,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:44:48,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253192267] [2022-01-11 05:44:48,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:44:48,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:44:48,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:44:48,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:44:48,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:44:48,837 INFO L87 Difference]: Start difference. First operand 3721 states and 6013 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 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 05:44:50,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:44:50,473 INFO L93 Difference]: Finished difference Result 12104 states and 19273 transitions. [2022-01-11 05:44:50,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:44:50,474 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 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 05:44:50,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:44:50,486 INFO L225 Difference]: With dead ends: 12104 [2022-01-11 05:44:50,486 INFO L226 Difference]: Without dead ends: 9285 [2022-01-11 05:44:50,490 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 05:44:50,491 INFO L933 BasicCegarLoop]: 1418 mSDtfsCounter, 5097 mSDsluCounter, 3423 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5097 SdHoareTripleChecker+Valid, 4841 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:44:50,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5097 Valid, 4841 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:44:50,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9285 states. [2022-01-11 05:44:51,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9285 to 5282. [2022-01-11 05:44:51,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5282 states, 5276 states have (on average 1.6161865049279758) internal successors, (8527), 5281 states have internal predecessors, (8527), 0 states have call successors, (0), 0 states 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 05:44:51,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5282 states to 5282 states and 8527 transitions. [2022-01-11 05:44:51,208 INFO L78 Accepts]: Start accepts. Automaton has 5282 states and 8527 transitions. Word has length 63 [2022-01-11 05:44:51,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:44:51,209 INFO L470 AbstractCegarLoop]: Abstraction has 5282 states and 8527 transitions. [2022-01-11 05:44:51,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 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 05:44:51,209 INFO L276 IsEmpty]: Start isEmpty. Operand 5282 states and 8527 transitions. [2022-01-11 05:44:51,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-11 05:44:51,212 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:44:51,212 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 05:44:51,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 05:44:51,212 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:44:51,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:44:51,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1153432322, now seen corresponding path program 1 times [2022-01-11 05:44:51,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:44:51,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564059093] [2022-01-11 05:44:51,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:44:51,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:44:51,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:44:51,299 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 05:44:51,299 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:44:51,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564059093] [2022-01-11 05:44:51,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564059093] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:44:51,301 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:44:51,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:44:51,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375106979] [2022-01-11 05:44:51,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:44:51,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:44:51,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:44:51,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:44:51,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:44:51,303 INFO L87 Difference]: Start difference. First operand 5282 states and 8527 transitions. Second operand has 4 states, 4 states have (on average 15.75) 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 05:44:52,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:44:52,715 INFO L93 Difference]: Finished difference Result 11702 states and 18747 transitions. [2022-01-11 05:44:52,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:44:52,715 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) 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 05:44:52,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:44:52,725 INFO L225 Difference]: With dead ends: 11702 [2022-01-11 05:44:52,725 INFO L226 Difference]: Without dead ends: 8118 [2022-01-11 05:44:52,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 05:44:52,731 INFO L933 BasicCegarLoop]: 1750 mSDtfsCounter, 2903 mSDsluCounter, 3549 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2903 SdHoareTripleChecker+Valid, 5299 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:44:52,731 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2903 Valid, 5299 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:44:52,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8118 states. [2022-01-11 05:44:53,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8118 to 4160. [2022-01-11 05:44:53,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4160 states, 4154 states have (on average 1.6189215214251325) internal successors, (6725), 4159 states have internal predecessors, (6725), 0 states have call successors, (0), 0 states 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 05:44:53,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4160 states to 4160 states and 6725 transitions. [2022-01-11 05:44:53,542 INFO L78 Accepts]: Start accepts. Automaton has 4160 states and 6725 transitions. Word has length 63 [2022-01-11 05:44:53,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:44:53,543 INFO L470 AbstractCegarLoop]: Abstraction has 4160 states and 6725 transitions. [2022-01-11 05:44:53,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) 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 05:44:53,543 INFO L276 IsEmpty]: Start isEmpty. Operand 4160 states and 6725 transitions. [2022-01-11 05:44:53,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-11 05:44:53,546 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:44:53,546 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 05:44:53,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-11 05:44:53,546 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:44:53,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:44:53,546 INFO L85 PathProgramCache]: Analyzing trace with hash 895344199, now seen corresponding path program 1 times [2022-01-11 05:44:53,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:44:53,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005681742] [2022-01-11 05:44:53,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:44:53,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:44:53,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:44:53,640 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 05:44:53,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:44:53,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005681742] [2022-01-11 05:44:53,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005681742] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:44:53,641 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:44:53,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-11 05:44:53,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582599385] [2022-01-11 05:44:53,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:44:53,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 05:44:53,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:44:53,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 05:44:53,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:44:53,642 INFO L87 Difference]: Start difference. First operand 4160 states and 6725 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 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 05:44:55,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:44:55,461 INFO L93 Difference]: Finished difference Result 9223 states and 14653 transitions. [2022-01-11 05:44:55,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-11 05:44:55,463 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 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 05:44:55,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:44:55,473 INFO L225 Difference]: With dead ends: 9223 [2022-01-11 05:44:55,473 INFO L226 Difference]: Without dead ends: 8147 [2022-01-11 05:44:55,475 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2022-01-11 05:44:55,476 INFO L933 BasicCegarLoop]: 1953 mSDtfsCounter, 7946 mSDsluCounter, 7870 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7946 SdHoareTripleChecker+Valid, 9823 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-11 05:44:55,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7946 Valid, 9823 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-11 05:44:55,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8147 states. [2022-01-11 05:44:56,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8147 to 4248. [2022-01-11 05:44:56,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4248 states, 4242 states have (on average 1.6103253182461104) internal successors, (6831), 4247 states have internal predecessors, (6831), 0 states have call successors, (0), 0 states 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 05:44:56,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4248 states to 4248 states and 6831 transitions. [2022-01-11 05:44:56,226 INFO L78 Accepts]: Start accepts. Automaton has 4248 states and 6831 transitions. Word has length 64 [2022-01-11 05:44:56,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:44:56,227 INFO L470 AbstractCegarLoop]: Abstraction has 4248 states and 6831 transitions. [2022-01-11 05:44:56,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 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 05:44:56,227 INFO L276 IsEmpty]: Start isEmpty. Operand 4248 states and 6831 transitions. [2022-01-11 05:44:56,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-11 05:44:56,229 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:44:56,230 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 05:44:56,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-11 05:44:56,230 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:44:56,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:44:56,230 INFO L85 PathProgramCache]: Analyzing trace with hash -630430065, now seen corresponding path program 1 times [2022-01-11 05:44:56,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:44:56,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142239209] [2022-01-11 05:44:56,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:44:56,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:44:56,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:44:56,311 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 05:44:56,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:44:56,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142239209] [2022-01-11 05:44:56,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142239209] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:44:56,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:44:56,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:44:56,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899551519] [2022-01-11 05:44:56,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:44:56,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:44:56,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:44:56,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:44:56,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:44:56,313 INFO L87 Difference]: Start difference. First operand 4248 states and 6831 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 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 05:44:57,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:44:57,707 INFO L93 Difference]: Finished difference Result 11089 states and 17594 transitions. [2022-01-11 05:44:57,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 05:44:57,707 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 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 05:44:57,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:44:57,718 INFO L225 Difference]: With dead ends: 11089 [2022-01-11 05:44:57,719 INFO L226 Difference]: Without dead ends: 8451 [2022-01-11 05:44:57,722 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:44:57,722 INFO L933 BasicCegarLoop]: 2017 mSDtfsCounter, 5381 mSDsluCounter, 4240 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5381 SdHoareTripleChecker+Valid, 6257 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:44:57,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5381 Valid, 6257 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:44:57,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8451 states. [2022-01-11 05:44:58,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8451 to 4276. [2022-01-11 05:44:58,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4270 states have (on average 1.6081967213114754) internal successors, (6867), 4275 states have internal predecessors, (6867), 0 states have call successors, (0), 0 states 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 05:44:58,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 6867 transitions. [2022-01-11 05:44:58,413 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 6867 transitions. Word has length 64 [2022-01-11 05:44:58,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:44:58,413 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 6867 transitions. [2022-01-11 05:44:58,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 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 05:44:58,413 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 6867 transitions. [2022-01-11 05:44:58,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-11 05:44:58,415 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:44:58,416 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:44:58,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-11 05:44:58,416 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:44:58,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:44:58,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1987806044, now seen corresponding path program 1 times [2022-01-11 05:44:58,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:44:58,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987006626] [2022-01-11 05:44:58,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:44:58,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:44:58,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:44:58,513 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 05:44:58,513 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:44:58,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987006626] [2022-01-11 05:44:58,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987006626] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:44:58,514 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:44:58,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:44:58,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686297309] [2022-01-11 05:44:58,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:44:58,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:44:58,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:44:58,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:44:58,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:44:58,516 INFO L87 Difference]: Start difference. First operand 4276 states and 6867 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:44:59,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:44:59,794 INFO L93 Difference]: Finished difference Result 9837 states and 15610 transitions. [2022-01-11 05:44:59,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:44:59,794 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-01-11 05:44:59,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:44:59,802 INFO L225 Difference]: With dead ends: 9837 [2022-01-11 05:44:59,802 INFO L226 Difference]: Without dead ends: 6610 [2022-01-11 05:44:59,805 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 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 05:44:59,806 INFO L933 BasicCegarLoop]: 1440 mSDtfsCounter, 4926 mSDsluCounter, 3417 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4926 SdHoareTripleChecker+Valid, 4857 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:44:59,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4926 Valid, 4857 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:44:59,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6610 states. [2022-01-11 05:45:00,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6610 to 3786. [2022-01-11 05:45:00,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3786 states, 3780 states have (on average 1.6177248677248677) internal successors, (6115), 3785 states have internal predecessors, (6115), 0 states have call successors, (0), 0 states 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 05:45:00,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3786 states to 3786 states and 6115 transitions. [2022-01-11 05:45:00,364 INFO L78 Accepts]: Start accepts. Automaton has 3786 states and 6115 transitions. Word has length 65 [2022-01-11 05:45:00,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:45:00,364 INFO L470 AbstractCegarLoop]: Abstraction has 3786 states and 6115 transitions. [2022-01-11 05:45:00,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:45:00,364 INFO L276 IsEmpty]: Start isEmpty. Operand 3786 states and 6115 transitions. [2022-01-11 05:45:00,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-11 05:45:00,366 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:45:00,366 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:45:00,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-11 05:45:00,367 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:45:00,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:45:00,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1795867794, now seen corresponding path program 1 times [2022-01-11 05:45:00,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:45:00,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119902766] [2022-01-11 05:45:00,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:45:00,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:45:00,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:45:00,489 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 05:45:00,489 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:45:00,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119902766] [2022-01-11 05:45:00,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119902766] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:45:00,490 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:45:00,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 05:45:00,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458502256] [2022-01-11 05:45:00,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:45:00,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:45:00,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:45:00,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:45:00,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:45:00,491 INFO L87 Difference]: Start difference. First operand 3786 states and 6115 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:45:02,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:45:02,202 INFO L93 Difference]: Finished difference Result 10234 states and 16344 transitions. [2022-01-11 05:45:02,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-11 05:45:02,202 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-01-11 05:45:02,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:45:02,211 INFO L225 Difference]: With dead ends: 10234 [2022-01-11 05:45:02,211 INFO L226 Difference]: Without dead ends: 8106 [2022-01-11 05:45:02,214 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-01-11 05:45:02,215 INFO L933 BasicCegarLoop]: 2005 mSDtfsCounter, 6862 mSDsluCounter, 5707 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6862 SdHoareTripleChecker+Valid, 7712 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:45:02,215 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6862 Valid, 7712 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 05:45:02,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8106 states. [2022-01-11 05:45:02,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8106 to 4421. [2022-01-11 05:45:02,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4421 states, 4415 states have (on average 1.6133635334088334) internal successors, (7123), 4420 states have internal predecessors, (7123), 0 states have call successors, (0), 0 states 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 05:45:02,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4421 states to 4421 states and 7123 transitions. [2022-01-11 05:45:02,955 INFO L78 Accepts]: Start accepts. Automaton has 4421 states and 7123 transitions. Word has length 65 [2022-01-11 05:45:02,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:45:02,955 INFO L470 AbstractCegarLoop]: Abstraction has 4421 states and 7123 transitions. [2022-01-11 05:45:02,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:45:02,956 INFO L276 IsEmpty]: Start isEmpty. Operand 4421 states and 7123 transitions. [2022-01-11 05:45:02,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-11 05:45:02,958 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:45:02,958 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:45:02,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-11 05:45:02,958 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:45:02,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:45:02,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1923801192, now seen corresponding path program 1 times [2022-01-11 05:45:02,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:45:02,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638950267] [2022-01-11 05:45:02,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:45:02,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:45:03,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:45:03,065 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 05:45:03,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:45:03,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638950267] [2022-01-11 05:45:03,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638950267] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:45:03,066 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:45:03,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:45:03,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284506068] [2022-01-11 05:45:03,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:45:03,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:45:03,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:45:03,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:45:03,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:45:03,068 INFO L87 Difference]: Start difference. First operand 4421 states and 7123 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states 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 05:45:04,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:45:04,598 INFO L93 Difference]: Finished difference Result 8148 states and 12970 transitions. [2022-01-11 05:45:04,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-11 05:45:04,598 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2022-01-11 05:45:04,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:45:04,609 INFO L225 Difference]: With dead ends: 8148 [2022-01-11 05:45:04,609 INFO L226 Difference]: Without dead ends: 7185 [2022-01-11 05:45:04,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2022-01-11 05:45:04,612 INFO L933 BasicCegarLoop]: 1988 mSDtfsCounter, 8961 mSDsluCounter, 9619 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8961 SdHoareTripleChecker+Valid, 11607 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:45:04,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8961 Valid, 11607 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 05:45:04,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7185 states. [2022-01-11 05:45:05,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7185 to 4475. [2022-01-11 05:45:05,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4475 states, 4469 states have (on average 1.6059521145670173) internal successors, (7177), 4474 states have internal predecessors, (7177), 0 states have call successors, (0), 0 states 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 05:45:05,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4475 states to 4475 states and 7177 transitions. [2022-01-11 05:45:05,333 INFO L78 Accepts]: Start accepts. Automaton has 4475 states and 7177 transitions. Word has length 66 [2022-01-11 05:45:05,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:45:05,334 INFO L470 AbstractCegarLoop]: Abstraction has 4475 states and 7177 transitions. [2022-01-11 05:45:05,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states 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 05:45:05,334 INFO L276 IsEmpty]: Start isEmpty. Operand 4475 states and 7177 transitions. [2022-01-11 05:45:05,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-11 05:45:05,336 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:45:05,336 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:45:05,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-11 05:45:05,336 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:45:05,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:45:05,337 INFO L85 PathProgramCache]: Analyzing trace with hash -489765541, now seen corresponding path program 1 times [2022-01-11 05:45:05,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:45:05,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130169897] [2022-01-11 05:45:05,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:45:05,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:45:05,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:45:05,432 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 05:45:05,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:45:05,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130169897] [2022-01-11 05:45:05,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130169897] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:45:05,432 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:45:05,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:45:05,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675836701] [2022-01-11 05:45:05,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:45:05,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:45:05,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:45:05,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:45:05,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:45:05,434 INFO L87 Difference]: Start difference. First operand 4475 states and 7177 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:45:06,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:45:06,373 INFO L93 Difference]: Finished difference Result 7905 states and 12542 transitions. [2022-01-11 05:45:06,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 05:45:06,375 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-01-11 05:45:06,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:45:06,382 INFO L225 Difference]: With dead ends: 7905 [2022-01-11 05:45:06,382 INFO L226 Difference]: Without dead ends: 5091 [2022-01-11 05:45:06,385 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 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 05:45:06,386 INFO L933 BasicCegarLoop]: 1966 mSDtfsCounter, 4020 mSDsluCounter, 3570 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4020 SdHoareTripleChecker+Valid, 5536 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:45:06,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4020 Valid, 5536 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:45:06,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5091 states. [2022-01-11 05:45:06,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5091 to 3421. [2022-01-11 05:45:06,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3421 states, 3418 states have (on average 1.6161497952018724) internal successors, (5524), 3420 states have internal predecessors, (5524), 0 states have call successors, (0), 0 states 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 05:45:06,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3421 states to 3421 states and 5524 transitions. [2022-01-11 05:45:06,935 INFO L78 Accepts]: Start accepts. Automaton has 3421 states and 5524 transitions. Word has length 67 [2022-01-11 05:45:06,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:45:06,935 INFO L470 AbstractCegarLoop]: Abstraction has 3421 states and 5524 transitions. [2022-01-11 05:45:06,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:45:06,935 INFO L276 IsEmpty]: Start isEmpty. Operand 3421 states and 5524 transitions. [2022-01-11 05:45:06,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-11 05:45:06,939 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:45:06,939 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:45:06,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-11 05:45:06,940 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:45:06,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:45:06,940 INFO L85 PathProgramCache]: Analyzing trace with hash -95683935, now seen corresponding path program 1 times [2022-01-11 05:45:06,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:45:06,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753350266] [2022-01-11 05:45:06,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:45:06,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:45:06,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:45:07,033 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 05:45:07,034 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:45:07,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753350266] [2022-01-11 05:45:07,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753350266] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:45:07,034 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:45:07,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:45:07,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254214777] [2022-01-11 05:45:07,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:45:07,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:45:07,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:45:07,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:45:07,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:45:07,036 INFO L87 Difference]: Start difference. First operand 3421 states and 5524 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:45:07,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:45:07,660 INFO L93 Difference]: Finished difference Result 5594 states and 8925 transitions. [2022-01-11 05:45:07,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:45:07,660 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-11 05:45:07,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:45:07,664 INFO L225 Difference]: With dead ends: 5594 [2022-01-11 05:45:07,664 INFO L226 Difference]: Without dead ends: 3421 [2022-01-11 05:45:07,665 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 05:45:07,666 INFO L933 BasicCegarLoop]: 1429 mSDtfsCounter, 1536 mSDsluCounter, 1330 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1536 SdHoareTripleChecker+Valid, 2759 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:45:07,666 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1536 Valid, 2759 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:45:07,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3421 states. [2022-01-11 05:45:08,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3421 to 3421. [2022-01-11 05:45:08,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3421 states, 3418 states have (on average 1.6102984201287303) internal successors, (5504), 3420 states have internal predecessors, (5504), 0 states have call successors, (0), 0 states 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 05:45:08,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3421 states to 3421 states and 5504 transitions. [2022-01-11 05:45:08,179 INFO L78 Accepts]: Start accepts. Automaton has 3421 states and 5504 transitions. Word has length 101 [2022-01-11 05:45:08,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:45:08,180 INFO L470 AbstractCegarLoop]: Abstraction has 3421 states and 5504 transitions. [2022-01-11 05:45:08,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:45:08,180 INFO L276 IsEmpty]: Start isEmpty. Operand 3421 states and 5504 transitions. [2022-01-11 05:45:08,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-11 05:45:08,183 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:45:08,183 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:45:08,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-11 05:45:08,183 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:45:08,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:45:08,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1149391096, now seen corresponding path program 1 times [2022-01-11 05:45:08,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:45:08,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34486544] [2022-01-11 05:45:08,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:45:08,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:45:08,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:45:08,339 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 05:45:08,339 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:45:08,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34486544] [2022-01-11 05:45:08,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34486544] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:45:08,343 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:45:08,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-11 05:45:08,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183984088] [2022-01-11 05:45:08,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:45:08,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-11 05:45:08,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:45:08,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-11 05:45:08,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-11 05:45:08,344 INFO L87 Difference]: Start difference. First operand 3421 states and 5504 transitions. Second operand has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:45:13,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:45:13,601 INFO L93 Difference]: Finished difference Result 24843 states and 38695 transitions. [2022-01-11 05:45:13,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-11 05:45:13,602 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2022-01-11 05:45:13,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:45:13,628 INFO L225 Difference]: With dead ends: 24843 [2022-01-11 05:45:13,628 INFO L226 Difference]: Without dead ends: 22730 [2022-01-11 05:45:13,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=369, Invalid=963, Unknown=0, NotChecked=0, Total=1332 [2022-01-11 05:45:13,635 INFO L933 BasicCegarLoop]: 2721 mSDtfsCounter, 12412 mSDsluCounter, 18013 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12412 SdHoareTripleChecker+Valid, 20734 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-11 05:45:13,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12412 Valid, 20734 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-11 05:45:13,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22730 states. [2022-01-11 05:45:14,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22730 to 6198. [2022-01-11 05:45:14,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6198 states, 6195 states have (on average 1.6004842615012107) internal successors, (9915), 6197 states have internal predecessors, (9915), 0 states have call successors, (0), 0 states 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 05:45:14,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6198 states to 6198 states and 9915 transitions. [2022-01-11 05:45:14,891 INFO L78 Accepts]: Start accepts. Automaton has 6198 states and 9915 transitions. Word has length 104 [2022-01-11 05:45:14,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:45:14,892 INFO L470 AbstractCegarLoop]: Abstraction has 6198 states and 9915 transitions. [2022-01-11 05:45:14,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:45:14,892 INFO L276 IsEmpty]: Start isEmpty. Operand 6198 states and 9915 transitions. [2022-01-11 05:45:14,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-01-11 05:45:14,899 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:45:14,899 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:45:14,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-11 05:45:14,899 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:45:14,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:45:14,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1832861593, now seen corresponding path program 1 times [2022-01-11 05:45:14,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:45:14,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303380299] [2022-01-11 05:45:14,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:45:14,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:45:14,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:45:15,043 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 05:45:15,043 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:45:15,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303380299] [2022-01-11 05:45:15,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303380299] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:45:15,044 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:45:15,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-11 05:45:15,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660058279] [2022-01-11 05:45:15,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:45:15,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-11 05:45:15,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:45:15,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-11 05:45:15,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-11 05:45:15,045 INFO L87 Difference]: Start difference. First operand 6198 states and 9915 transitions. Second operand has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 0 states have call successors, (0), 0 states 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 05:45:20,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:45:20,976 INFO L93 Difference]: Finished difference Result 26154 states and 40695 transitions. [2022-01-11 05:45:20,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-11 05:45:20,977 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2022-01-11 05:45:20,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:45:21,002 INFO L225 Difference]: With dead ends: 26154 [2022-01-11 05:45:21,002 INFO L226 Difference]: Without dead ends: 22598 [2022-01-11 05:45:21,009 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=383, Invalid=1023, Unknown=0, NotChecked=0, Total=1406 [2022-01-11 05:45:21,010 INFO L933 BasicCegarLoop]: 3421 mSDtfsCounter, 10285 mSDsluCounter, 19216 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10285 SdHoareTripleChecker+Valid, 22637 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-11 05:45:21,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10285 Valid, 22637 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-11 05:45:21,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22598 states. [2022-01-11 05:45:22,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22598 to 6548. [2022-01-11 05:45:22,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6548 states, 6545 states have (on average 1.5897631779984722) internal successors, (10405), 6547 states have internal predecessors, (10405), 0 states have call successors, (0), 0 states 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 05:45:22,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6548 states to 6548 states and 10405 transitions. [2022-01-11 05:45:22,459 INFO L78 Accepts]: Start accepts. Automaton has 6548 states and 10405 transitions. Word has length 105 [2022-01-11 05:45:22,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:45:22,460 INFO L470 AbstractCegarLoop]: Abstraction has 6548 states and 10405 transitions. [2022-01-11 05:45:22,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 0 states have call successors, (0), 0 states 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 05:45:22,460 INFO L276 IsEmpty]: Start isEmpty. Operand 6548 states and 10405 transitions. [2022-01-11 05:45:22,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-01-11 05:45:22,465 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:45:22,465 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:45:22,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-11 05:45:22,465 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:45:22,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:45:22,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1805524505, now seen corresponding path program 1 times [2022-01-11 05:45:22,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:45:22,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315814485] [2022-01-11 05:45:22,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:45:22,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:45:22,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:45:22,557 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 05:45:22,557 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:45:22,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315814485] [2022-01-11 05:45:22,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315814485] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:45:22,557 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:45:22,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:45:22,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4058274] [2022-01-11 05:45:22,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:45:22,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:45:22,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:45:22,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:45:22,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:45:22,559 INFO L87 Difference]: Start difference. First operand 6548 states and 10405 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)