./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5637b1-e247-41d1-b309-09d394d12d09/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5637b1-e247-41d1-b309-09d394d12d09/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5637b1-e247-41d1-b309-09d394d12d09/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5637b1-e247-41d1-b309-09d394d12d09/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5637b1-e247-41d1-b309-09d394d12d09/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5637b1-e247-41d1-b309-09d394d12d09/bin/uautomizer-wIGwrQj20G --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2c6afaf5bedcc2af934f5b2a4cc6fb91099717aaf97d30d9787d5c01855a1a43 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 14:03:53,366 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 14:03:53,369 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 14:03:53,409 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 14:03:53,410 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 14:03:53,412 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 14:03:53,414 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 14:03:53,417 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 14:03:53,420 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 14:03:53,421 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 14:03:53,423 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 14:03:53,425 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 14:03:53,426 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 14:03:53,427 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 14:03:53,430 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 14:03:53,432 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 14:03:53,433 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 14:03:53,435 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 14:03:53,439 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 14:03:53,442 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 14:03:53,445 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 14:03:53,447 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 14:03:53,449 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 14:03:53,450 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 14:03:53,455 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 14:03:53,456 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 14:03:53,456 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 14:03:53,458 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 14:03:53,459 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 14:03:53,461 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 14:03:53,461 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 14:03:53,462 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 14:03:53,464 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 14:03:53,465 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 14:03:53,467 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 14:03:53,468 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 14:03:53,469 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 14:03:53,470 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 14:03:53,470 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 14:03:53,472 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 14:03:53,473 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 14:03:53,474 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5637b1-e247-41d1-b309-09d394d12d09/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-23 14:03:53,505 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 14:03:53,505 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 14:03:53,506 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 14:03:53,506 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 14:03:53,508 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 14:03:53,508 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 14:03:53,508 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 14:03:53,509 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 14:03:53,509 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 14:03:53,509 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 14:03:53,509 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 14:03:53,510 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 14:03:53,510 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 14:03:53,510 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 14:03:53,511 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 14:03:53,511 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 14:03:53,511 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 14:03:53,511 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 14:03:53,512 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 14:03:53,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 14:03:53,512 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 14:03:53,513 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 14:03:53,513 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 14:03:53,513 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 14:03:53,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 14:03:53,514 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 14:03:53,514 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 14:03:53,514 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 14:03:53,515 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 14:03:53,515 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5637b1-e247-41d1-b309-09d394d12d09/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5637b1-e247-41d1-b309-09d394d12d09/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c6afaf5bedcc2af934f5b2a4cc6fb91099717aaf97d30d9787d5c01855a1a43 [2021-11-23 14:03:53,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 14:03:53,856 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 14:03:53,859 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 14:03:53,861 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 14:03:53,863 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 14:03:53,864 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5637b1-e247-41d1-b309-09d394d12d09/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i [2021-11-23 14:03:53,942 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5637b1-e247-41d1-b309-09d394d12d09/bin/uautomizer-wIGwrQj20G/data/9a265dff1/9380fa286ba242ed9180e00902dc8fcc/FLAG2d65fa6ae [2021-11-23 14:03:54,842 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 14:03:54,842 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5637b1-e247-41d1-b309-09d394d12d09/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i [2021-11-23 14:03:54,903 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5637b1-e247-41d1-b309-09d394d12d09/bin/uautomizer-wIGwrQj20G/data/9a265dff1/9380fa286ba242ed9180e00902dc8fcc/FLAG2d65fa6ae [2021-11-23 14:03:55,314 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5637b1-e247-41d1-b309-09d394d12d09/bin/uautomizer-wIGwrQj20G/data/9a265dff1/9380fa286ba242ed9180e00902dc8fcc [2021-11-23 14:03:55,317 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 14:03:55,319 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 14:03:55,331 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 14:03:55,332 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 14:03:55,336 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 14:03:55,337 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:03:55" (1/1) ... [2021-11-23 14:03:55,338 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73ae66db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:55, skipping insertion in model container [2021-11-23 14:03:55,339 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:03:55" (1/1) ... [2021-11-23 14:03:55,348 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 14:03:55,481 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 14:03:57,558 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5637b1-e247-41d1-b309-09d394d12d09/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i[193323,193336] [2021-11-23 14:03:57,562 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5637b1-e247-41d1-b309-09d394d12d09/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i[193489,193502] [2021-11-23 14:03:57,563 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5637b1-e247-41d1-b309-09d394d12d09/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i[193653,193666] [2021-11-23 14:03:57,564 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5637b1-e247-41d1-b309-09d394d12d09/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i[193818,193831] [2021-11-23 14:03:57,588 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:03:57,620 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 14:03:57,999 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5637b1-e247-41d1-b309-09d394d12d09/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i[193323,193336] [2021-11-23 14:03:58,002 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5637b1-e247-41d1-b309-09d394d12d09/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i[193489,193502] [2021-11-23 14:03:58,003 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5637b1-e247-41d1-b309-09d394d12d09/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i[193653,193666] [2021-11-23 14:03:58,004 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5637b1-e247-41d1-b309-09d394d12d09/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i[193818,193831] [2021-11-23 14:03:58,020 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:03:58,167 INFO L208 MainTranslator]: Completed translation [2021-11-23 14:03:58,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:58 WrapperNode [2021-11-23 14:03:58,168 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 14:03:58,169 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 14:03:58,169 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 14:03:58,170 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 14:03:58,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:58" (1/1) ... [2021-11-23 14:03:58,295 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:58" (1/1) ... [2021-11-23 14:03:58,708 INFO L137 Inliner]: procedures = 238, calls = 999, calls flagged for inlining = 406, calls inlined = 745, statements flattened = 8372 [2021-11-23 14:03:58,709 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 14:03:58,710 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 14:03:58,710 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 14:03:58,710 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 14:03:58,721 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:58" (1/1) ... [2021-11-23 14:03:58,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:58" (1/1) ... [2021-11-23 14:03:58,792 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:58" (1/1) ... [2021-11-23 14:03:58,792 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:58" (1/1) ... [2021-11-23 14:03:59,058 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:58" (1/1) ... [2021-11-23 14:03:59,119 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:58" (1/1) ... [2021-11-23 14:03:59,146 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:58" (1/1) ... [2021-11-23 14:03:59,190 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 14:03:59,192 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 14:03:59,192 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 14:03:59,192 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 14:03:59,194 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:58" (1/1) ... [2021-11-23 14:03:59,207 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 14:03:59,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5637b1-e247-41d1-b309-09d394d12d09/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:03:59,245 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5637b1-e247-41d1-b309-09d394d12d09/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 14:03:59,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5637b1-e247-41d1-b309-09d394d12d09/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 14:03:59,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 14:03:59,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 14:03:59,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 14:03:59,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 14:03:59,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 14:03:59,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 14:03:59,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 14:03:59,309 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2021-11-23 14:03:59,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 14:03:59,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 14:03:59,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 14:03:59,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 14:03:59,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 14:04:00,162 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 14:04:00,164 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 14:04:05,429 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res#1 := 0; [2021-11-23 14:04:05,429 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#1: ldv_switch_1_#res#1 := 0; [2021-11-23 14:04:05,429 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#1: ldv_switch_2_#res#1 := 0; [2021-11-23 14:04:05,429 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res#1 := 0; [2021-11-23 14:04:05,430 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-23 14:04:05,430 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res#1 := 0; [2021-11-23 14:04:05,431 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res#1 := 0; [2021-11-23 14:04:05,431 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#5: ldv_switch_0_#res#1 := 0; [2021-11-23 14:04:05,431 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#6: ldv_switch_0_#res#1 := 0; [2021-11-23 14:04:05,431 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#1: ldv_switch_0_#res#1 := 0; [2021-11-23 14:04:05,431 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res#1 := 0; [2021-11-23 14:04:05,431 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 14:04:05,464 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 14:04:05,465 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 14:04:05,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:04:05 BoogieIcfgContainer [2021-11-23 14:04:05,471 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 14:04:05,473 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 14:04:05,473 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 14:04:05,477 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 14:04:05,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:03:55" (1/3) ... [2021-11-23 14:04:05,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a2fd446 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:04:05, skipping insertion in model container [2021-11-23 14:04:05,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:58" (2/3) ... [2021-11-23 14:04:05,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a2fd446 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:04:05, skipping insertion in model container [2021-11-23 14:04:05,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:04:05" (3/3) ... [2021-11-23 14:04:05,481 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i [2021-11-23 14:04:05,487 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 14:04:05,487 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 21 error locations. [2021-11-23 14:04:05,553 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 14:04:05,560 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 [2021-11-23 14:04:05,561 INFO L340 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2021-11-23 14:04:05,637 INFO L276 IsEmpty]: Start isEmpty. Operand has 1709 states, 1688 states have (on average 1.3400473933649288) internal successors, (2262), 1708 states have internal predecessors, (2262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:05,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-23 14:04:05,669 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:04:05,670 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] [2021-11-23 14:04:05,671 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-23 14:04:05,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:04:05,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1466194714, now seen corresponding path program 1 times [2021-11-23 14:04:05,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:04:05,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007051336] [2021-11-23 14:04:05,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:04:05,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:04:06,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:04:06,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:04:06,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:04:06,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007051336] [2021-11-23 14:04:06,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007051336] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:04:06,418 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:04:06,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 14:04:06,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387029653] [2021-11-23 14:04:06,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:04:06,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 14:04:06,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:04:06,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 14:04:06,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:04:06,469 INFO L87 Difference]: Start difference. First operand has 1709 states, 1688 states have (on average 1.3400473933649288) internal successors, (2262), 1708 states have internal predecessors, (2262), 0 states have call successors, (0), 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 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:06,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:04:06,924 INFO L93 Difference]: Finished difference Result 4493 states and 5980 transitions. [2021-11-23 14:04:06,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:04:06,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-11-23 14:04:06,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:04:06,988 INFO L225 Difference]: With dead ends: 4493 [2021-11-23 14:04:06,988 INFO L226 Difference]: Without dead ends: 2773 [2021-11-23 14:04:07,003 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 [2021-11-23 14:04:07,014 INFO L933 BasicCegarLoop]: 2232 mSDtfsCounter, 1780 mSDsluCounter, 2174 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1780 SdHoareTripleChecker+Valid, 4406 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 14:04:07,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1780 Valid, 4406 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 14:04:07,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2773 states. [2021-11-23 14:04:07,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2773 to 2749. [2021-11-23 14:04:07,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2749 states, 2728 states have (on average 1.281891495601173) internal successors, (3497), 2748 states have internal predecessors, (3497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:07,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2749 states to 2749 states and 3497 transitions. [2021-11-23 14:04:07,280 INFO L78 Accepts]: Start accepts. Automaton has 2749 states and 3497 transitions. Word has length 94 [2021-11-23 14:04:07,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:04:07,282 INFO L470 AbstractCegarLoop]: Abstraction has 2749 states and 3497 transitions. [2021-11-23 14:04:07,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:07,284 INFO L276 IsEmpty]: Start isEmpty. Operand 2749 states and 3497 transitions. [2021-11-23 14:04:07,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-23 14:04:07,292 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:04:07,293 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:04:07,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 14:04:07,294 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-23 14:04:07,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:04:07,297 INFO L85 PathProgramCache]: Analyzing trace with hash -629069617, now seen corresponding path program 1 times [2021-11-23 14:04:07,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:04:07,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736676609] [2021-11-23 14:04:07,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:04:07,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:04:07,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:04:07,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:04:07,648 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:04:07,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736676609] [2021-11-23 14:04:07,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736676609] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:04:07,648 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:04:07,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 14:04:07,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116825588] [2021-11-23 14:04:07,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:04:07,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 14:04:07,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:04:07,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 14:04:07,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:04:07,652 INFO L87 Difference]: Start difference. First operand 2749 states and 3497 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:07,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:04:08,000 INFO L93 Difference]: Finished difference Result 6255 states and 8004 transitions. [2021-11-23 14:04:08,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:04:08,001 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2021-11-23 14:04:08,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:04:08,030 INFO L225 Difference]: With dead ends: 6255 [2021-11-23 14:04:08,031 INFO L226 Difference]: Without dead ends: 3703 [2021-11-23 14:04:08,038 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 [2021-11-23 14:04:08,045 INFO L933 BasicCegarLoop]: 1918 mSDtfsCounter, 1443 mSDsluCounter, 1877 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1443 SdHoareTripleChecker+Valid, 3795 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 14:04:08,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1443 Valid, 3795 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 14:04:08,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3703 states. [2021-11-23 14:04:08,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3703 to 3615. [2021-11-23 14:04:08,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3615 states, 3594 states have (on average 1.2890929326655538) internal successors, (4633), 3614 states have internal predecessors, (4633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:08,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3615 states to 3615 states and 4633 transitions. [2021-11-23 14:04:08,211 INFO L78 Accepts]: Start accepts. Automaton has 3615 states and 4633 transitions. Word has length 120 [2021-11-23 14:04:08,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:04:08,212 INFO L470 AbstractCegarLoop]: Abstraction has 3615 states and 4633 transitions. [2021-11-23 14:04:08,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:08,213 INFO L276 IsEmpty]: Start isEmpty. Operand 3615 states and 4633 transitions. [2021-11-23 14:04:08,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-23 14:04:08,225 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:04:08,225 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:04:08,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 14:04:08,226 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-23 14:04:08,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:04:08,227 INFO L85 PathProgramCache]: Analyzing trace with hash 497139324, now seen corresponding path program 1 times [2021-11-23 14:04:08,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:04:08,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53758803] [2021-11-23 14:04:08,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:04:08,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:04:08,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:04:08,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:04:08,502 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:04:08,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53758803] [2021-11-23 14:04:08,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53758803] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:04:08,502 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:04:08,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 14:04:08,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630415318] [2021-11-23 14:04:08,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:04:08,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 14:04:08,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:04:08,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 14:04:08,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:04:08,507 INFO L87 Difference]: Start difference. First operand 3615 states and 4633 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:08,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:04:08,949 INFO L93 Difference]: Finished difference Result 8920 states and 11510 transitions. [2021-11-23 14:04:08,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:04:08,950 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2021-11-23 14:04:08,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:04:08,995 INFO L225 Difference]: With dead ends: 8920 [2021-11-23 14:04:08,996 INFO L226 Difference]: Without dead ends: 5502 [2021-11-23 14:04:09,007 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 [2021-11-23 14:04:09,012 INFO L933 BasicCegarLoop]: 2164 mSDtfsCounter, 1471 mSDsluCounter, 1879 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1471 SdHoareTripleChecker+Valid, 4043 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 14:04:09,018 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1471 Valid, 4043 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 14:04:09,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5502 states. [2021-11-23 14:04:09,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5502 to 5410. [2021-11-23 14:04:09,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5410 states, 5389 states have (on average 1.2969010948227873) internal successors, (6989), 5409 states have internal predecessors, (6989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:09,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5410 states to 5410 states and 6989 transitions. [2021-11-23 14:04:09,308 INFO L78 Accepts]: Start accepts. Automaton has 5410 states and 6989 transitions. Word has length 121 [2021-11-23 14:04:09,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:04:09,310 INFO L470 AbstractCegarLoop]: Abstraction has 5410 states and 6989 transitions. [2021-11-23 14:04:09,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:09,310 INFO L276 IsEmpty]: Start isEmpty. Operand 5410 states and 6989 transitions. [2021-11-23 14:04:09,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-23 14:04:09,314 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:04:09,314 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:04:09,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 14:04:09,315 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-23 14:04:09,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:04:09,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1783081620, now seen corresponding path program 1 times [2021-11-23 14:04:09,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:04:09,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130865371] [2021-11-23 14:04:09,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:04:09,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:04:09,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:04:09,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:04:09,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:04:09,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130865371] [2021-11-23 14:04:09,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130865371] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:04:09,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:04:09,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 14:04:09,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047453492] [2021-11-23 14:04:09,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:04:09,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 14:04:09,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:04:09,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 14:04:09,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:04:09,552 INFO L87 Difference]: Start difference. First operand 5410 states and 6989 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:10,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:04:10,037 INFO L93 Difference]: Finished difference Result 11871 states and 15329 transitions. [2021-11-23 14:04:10,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:04:10,038 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 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 122 [2021-11-23 14:04:10,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:04:10,087 INFO L225 Difference]: With dead ends: 11871 [2021-11-23 14:04:10,087 INFO L226 Difference]: Without dead ends: 6658 [2021-11-23 14:04:10,097 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 [2021-11-23 14:04:10,102 INFO L933 BasicCegarLoop]: 2382 mSDtfsCounter, 856 mSDsluCounter, 1878 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 856 SdHoareTripleChecker+Valid, 4260 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 14:04:10,104 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [856 Valid, 4260 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 14:04:10,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6658 states. [2021-11-23 14:04:10,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6658 to 6580. [2021-11-23 14:04:10,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6580 states, 6559 states have (on average 1.2867815215734106) internal successors, (8440), 6579 states have internal predecessors, (8440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:10,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6580 states to 6580 states and 8440 transitions. [2021-11-23 14:04:10,453 INFO L78 Accepts]: Start accepts. Automaton has 6580 states and 8440 transitions. Word has length 122 [2021-11-23 14:04:10,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:04:10,454 INFO L470 AbstractCegarLoop]: Abstraction has 6580 states and 8440 transitions. [2021-11-23 14:04:10,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:10,454 INFO L276 IsEmpty]: Start isEmpty. Operand 6580 states and 8440 transitions. [2021-11-23 14:04:10,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-23 14:04:10,458 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:04:10,458 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:04:10,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 14:04:10,459 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-23 14:04:10,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:04:10,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1469548955, now seen corresponding path program 1 times [2021-11-23 14:04:10,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:04:10,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100117221] [2021-11-23 14:04:10,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:04:10,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:04:10,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:04:10,600 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:04:10,601 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:04:10,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100117221] [2021-11-23 14:04:10,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100117221] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:04:10,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:04:10,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 14:04:10,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978370527] [2021-11-23 14:04:10,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:04:10,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 14:04:10,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:04:10,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 14:04:10,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:04:10,604 INFO L87 Difference]: Start difference. First operand 6580 states and 8440 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:11,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:04:11,202 INFO L93 Difference]: Finished difference Result 18464 states and 23833 transitions. [2021-11-23 14:04:11,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:04:11,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 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 128 [2021-11-23 14:04:11,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:04:11,288 INFO L225 Difference]: With dead ends: 18464 [2021-11-23 14:04:11,288 INFO L226 Difference]: Without dead ends: 12304 [2021-11-23 14:04:11,302 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 [2021-11-23 14:04:11,303 INFO L933 BasicCegarLoop]: 3499 mSDtfsCounter, 1571 mSDsluCounter, 1898 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1571 SdHoareTripleChecker+Valid, 5397 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 14:04:11,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1571 Valid, 5397 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 14:04:11,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12304 states. [2021-11-23 14:04:11,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12304 to 12280. [2021-11-23 14:04:11,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12280 states, 12259 states have (on average 1.2911330451097154) internal successors, (15828), 12279 states have internal predecessors, (15828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:12,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12280 states to 12280 states and 15828 transitions. [2021-11-23 14:04:12,034 INFO L78 Accepts]: Start accepts. Automaton has 12280 states and 15828 transitions. Word has length 128 [2021-11-23 14:04:12,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:04:12,035 INFO L470 AbstractCegarLoop]: Abstraction has 12280 states and 15828 transitions. [2021-11-23 14:04:12,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:12,036 INFO L276 IsEmpty]: Start isEmpty. Operand 12280 states and 15828 transitions. [2021-11-23 14:04:12,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-23 14:04:12,040 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:04:12,041 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:04:12,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 14:04:12,042 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-23 14:04:12,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:04:12,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1136474599, now seen corresponding path program 1 times [2021-11-23 14:04:12,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:04:12,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382426947] [2021-11-23 14:04:12,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:04:12,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:04:12,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:04:12,332 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 14:04:12,333 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:04:12,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382426947] [2021-11-23 14:04:12,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382426947] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:04:12,334 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:04:12,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 14:04:12,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121770393] [2021-11-23 14:04:12,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:04:12,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 14:04:12,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:04:12,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 14:04:12,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 14:04:12,337 INFO L87 Difference]: Start difference. First operand 12280 states and 15828 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:12,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:04:12,926 INFO L93 Difference]: Finished difference Result 12280 states and 15828 transitions. [2021-11-23 14:04:12,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:04:12,927 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 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 128 [2021-11-23 14:04:12,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:04:12,976 INFO L225 Difference]: With dead ends: 12280 [2021-11-23 14:04:12,976 INFO L226 Difference]: Without dead ends: 12274 [2021-11-23 14:04:12,983 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 [2021-11-23 14:04:12,985 INFO L933 BasicCegarLoop]: 1912 mSDtfsCounter, 1583 mSDsluCounter, 2109 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1583 SdHoareTripleChecker+Valid, 4021 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 14:04:12,985 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1583 Valid, 4021 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 14:04:13,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12274 states. [2021-11-23 14:04:13,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12274 to 12274. [2021-11-23 14:04:13,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12274 states, 12256 states have (on average 1.2909595300261096) internal successors, (15822), 12273 states have internal predecessors, (15822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:13,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12274 states to 12274 states and 15822 transitions. [2021-11-23 14:04:13,714 INFO L78 Accepts]: Start accepts. Automaton has 12274 states and 15822 transitions. Word has length 128 [2021-11-23 14:04:13,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:04:13,714 INFO L470 AbstractCegarLoop]: Abstraction has 12274 states and 15822 transitions. [2021-11-23 14:04:13,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:13,715 INFO L276 IsEmpty]: Start isEmpty. Operand 12274 states and 15822 transitions. [2021-11-23 14:04:13,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-23 14:04:13,718 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:04:13,719 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:04:13,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 14:04:13,719 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-23 14:04:13,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:04:13,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1230552618, now seen corresponding path program 1 times [2021-11-23 14:04:13,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:04:13,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433472964] [2021-11-23 14:04:13,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:04:13,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:04:13,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:04:14,060 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 14:04:14,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:04:14,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433472964] [2021-11-23 14:04:14,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433472964] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:04:14,061 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:04:14,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 14:04:14,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849415597] [2021-11-23 14:04:14,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:04:14,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 14:04:14,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:04:14,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 14:04:14,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 14:04:14,064 INFO L87 Difference]: Start difference. First operand 12274 states and 15822 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:14,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:04:14,594 INFO L93 Difference]: Finished difference Result 12274 states and 15822 transitions. [2021-11-23 14:04:14,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:04:14,595 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 0 states have call successors, (0), 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 130 [2021-11-23 14:04:14,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:04:14,631 INFO L225 Difference]: With dead ends: 12274 [2021-11-23 14:04:14,631 INFO L226 Difference]: Without dead ends: 12268 [2021-11-23 14:04:14,636 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 [2021-11-23 14:04:14,638 INFO L933 BasicCegarLoop]: 1912 mSDtfsCounter, 1802 mSDsluCounter, 1900 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1802 SdHoareTripleChecker+Valid, 3812 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 14:04:14,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1802 Valid, 3812 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 14:04:14,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12268 states. [2021-11-23 14:04:15,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12268 to 12268. [2021-11-23 14:04:15,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12268 states, 12253 states have (on average 1.2907859299763322) internal successors, (15816), 12267 states have internal predecessors, (15816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:15,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12268 states to 12268 states and 15816 transitions. [2021-11-23 14:04:15,373 INFO L78 Accepts]: Start accepts. Automaton has 12268 states and 15816 transitions. Word has length 130 [2021-11-23 14:04:15,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:04:15,374 INFO L470 AbstractCegarLoop]: Abstraction has 12268 states and 15816 transitions. [2021-11-23 14:04:15,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:15,375 INFO L276 IsEmpty]: Start isEmpty. Operand 12268 states and 15816 transitions. [2021-11-23 14:04:15,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-11-23 14:04:15,379 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:04:15,379 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:04:15,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 14:04:15,380 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-23 14:04:15,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:04:15,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1445215981, now seen corresponding path program 1 times [2021-11-23 14:04:15,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:04:15,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490333784] [2021-11-23 14:04:15,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:04:15,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:04:15,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:04:15,694 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 14:04:15,695 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:04:15,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490333784] [2021-11-23 14:04:15,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490333784] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:04:15,696 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:04:15,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 14:04:15,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728155215] [2021-11-23 14:04:15,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:04:15,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 14:04:15,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:04:15,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 14:04:15,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 14:04:15,698 INFO L87 Difference]: Start difference. First operand 12268 states and 15816 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:16,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:04:16,257 INFO L93 Difference]: Finished difference Result 12268 states and 15816 transitions. [2021-11-23 14:04:16,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:04:16,260 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 0 states have call successors, (0), 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 132 [2021-11-23 14:04:16,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:04:16,290 INFO L225 Difference]: With dead ends: 12268 [2021-11-23 14:04:16,290 INFO L226 Difference]: Without dead ends: 12218 [2021-11-23 14:04:16,293 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 [2021-11-23 14:04:16,294 INFO L933 BasicCegarLoop]: 1909 mSDtfsCounter, 1791 mSDsluCounter, 1897 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1791 SdHoareTripleChecker+Valid, 3806 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 14:04:16,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1791 Valid, 3806 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 14:04:16,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12218 states. [2021-11-23 14:04:16,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12218 to 12218. [2021-11-23 14:04:16,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12218 states, 12206 states have (on average 1.289939374078322) internal successors, (15745), 12217 states have internal predecessors, (15745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:16,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12218 states to 12218 states and 15745 transitions. [2021-11-23 14:04:16,913 INFO L78 Accepts]: Start accepts. Automaton has 12218 states and 15745 transitions. Word has length 132 [2021-11-23 14:04:16,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:04:16,914 INFO L470 AbstractCegarLoop]: Abstraction has 12218 states and 15745 transitions. [2021-11-23 14:04:16,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:16,914 INFO L276 IsEmpty]: Start isEmpty. Operand 12218 states and 15745 transitions. [2021-11-23 14:04:16,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-11-23 14:04:16,927 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:04:16,927 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:04:16,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 14:04:16,928 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-23 14:04:16,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:04:16,929 INFO L85 PathProgramCache]: Analyzing trace with hash -894280956, now seen corresponding path program 1 times [2021-11-23 14:04:16,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:04:16,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223919100] [2021-11-23 14:04:16,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:04:16,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:04:17,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:04:17,114 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:04:17,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:04:17,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223919100] [2021-11-23 14:04:17,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223919100] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:04:17,115 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:04:17,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 14:04:17,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221779118] [2021-11-23 14:04:17,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:04:17,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 14:04:17,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:04:17,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 14:04:17,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:04:17,119 INFO L87 Difference]: Start difference. First operand 12218 states and 15745 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:18,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:04:18,216 INFO L93 Difference]: Finished difference Result 29748 states and 38435 transitions. [2021-11-23 14:04:18,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:04:18,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 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 172 [2021-11-23 14:04:18,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:04:18,275 INFO L225 Difference]: With dead ends: 29748 [2021-11-23 14:04:18,280 INFO L226 Difference]: Without dead ends: 17655 [2021-11-23 14:04:18,309 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 [2021-11-23 14:04:18,312 INFO L933 BasicCegarLoop]: 3439 mSDtfsCounter, 1568 mSDsluCounter, 1843 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1568 SdHoareTripleChecker+Valid, 5282 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 14:04:18,312 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1568 Valid, 5282 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 14:04:18,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17655 states. [2021-11-23 14:04:19,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17655 to 17631. [2021-11-23 14:04:19,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17631 states, 17619 states have (on average 1.292525114932743) internal successors, (22773), 17630 states have internal predecessors, (22773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:19,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17631 states to 17631 states and 22773 transitions. [2021-11-23 14:04:19,309 INFO L78 Accepts]: Start accepts. Automaton has 17631 states and 22773 transitions. Word has length 172 [2021-11-23 14:04:19,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:04:19,309 INFO L470 AbstractCegarLoop]: Abstraction has 17631 states and 22773 transitions. [2021-11-23 14:04:19,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:19,310 INFO L276 IsEmpty]: Start isEmpty. Operand 17631 states and 22773 transitions. [2021-11-23 14:04:19,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-11-23 14:04:19,322 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:04:19,323 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:04:19,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 14:04:19,323 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-23 14:04:19,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:04:19,324 INFO L85 PathProgramCache]: Analyzing trace with hash 555123420, now seen corresponding path program 1 times [2021-11-23 14:04:19,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:04:19,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364605085] [2021-11-23 14:04:19,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:04:19,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:04:19,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:04:19,491 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-23 14:04:19,491 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:04:19,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364605085] [2021-11-23 14:04:19,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364605085] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:04:19,492 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:04:19,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 14:04:19,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520187129] [2021-11-23 14:04:19,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:04:19,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 14:04:19,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:04:19,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 14:04:19,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:04:19,495 INFO L87 Difference]: Start difference. First operand 17631 states and 22773 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:20,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:04:20,999 INFO L93 Difference]: Finished difference Result 40526 states and 52403 transitions. [2021-11-23 14:04:21,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:04:21,001 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 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 189 [2021-11-23 14:04:21,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:04:21,082 INFO L225 Difference]: With dead ends: 40526 [2021-11-23 14:04:21,083 INFO L226 Difference]: Without dead ends: 23068 [2021-11-23 14:04:21,129 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 [2021-11-23 14:04:21,130 INFO L933 BasicCegarLoop]: 3439 mSDtfsCounter, 1566 mSDsluCounter, 1843 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1566 SdHoareTripleChecker+Valid, 5282 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 14:04:21,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1566 Valid, 5282 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 14:04:21,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23068 states. [2021-11-23 14:04:22,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23068 to 17631. [2021-11-23 14:04:22,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17631 states, 17619 states have (on average 1.2924683580225893) internal successors, (22772), 17630 states have internal predecessors, (22772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:22,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17631 states to 17631 states and 22772 transitions. [2021-11-23 14:04:22,282 INFO L78 Accepts]: Start accepts. Automaton has 17631 states and 22772 transitions. Word has length 189 [2021-11-23 14:04:22,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:04:22,283 INFO L470 AbstractCegarLoop]: Abstraction has 17631 states and 22772 transitions. [2021-11-23 14:04:22,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:22,283 INFO L276 IsEmpty]: Start isEmpty. Operand 17631 states and 22772 transitions. [2021-11-23 14:04:22,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-11-23 14:04:22,300 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:04:22,301 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:04:22,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-23 14:04:22,302 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-23 14:04:22,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:04:22,302 INFO L85 PathProgramCache]: Analyzing trace with hash 137726814, now seen corresponding path program 1 times [2021-11-23 14:04:22,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:04:22,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637515199] [2021-11-23 14:04:22,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:04:22,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:04:22,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:04:22,483 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-23 14:04:22,484 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:04:22,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637515199] [2021-11-23 14:04:22,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637515199] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:04:22,484 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:04:22,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 14:04:22,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120265783] [2021-11-23 14:04:22,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:04:22,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 14:04:22,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:04:22,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 14:04:22,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:04:22,488 INFO L87 Difference]: Start difference. First operand 17631 states and 22772 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:24,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:04:24,027 INFO L93 Difference]: Finished difference Result 42396 states and 54942 transitions. [2021-11-23 14:04:24,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:04:24,028 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 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 189 [2021-11-23 14:04:24,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:04:24,111 INFO L225 Difference]: With dead ends: 42396 [2021-11-23 14:04:24,112 INFO L226 Difference]: Without dead ends: 25185 [2021-11-23 14:04:24,144 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 [2021-11-23 14:04:24,145 INFO L933 BasicCegarLoop]: 2194 mSDtfsCounter, 1390 mSDsluCounter, 1800 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1390 SdHoareTripleChecker+Valid, 3994 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 14:04:24,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1390 Valid, 3994 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 14:04:24,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25185 states. [2021-11-23 14:04:25,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25185 to 25159. [2021-11-23 14:04:25,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25159 states, 25147 states have (on average 1.29438899272279) internal successors, (32550), 25158 states have internal predecessors, (32550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:25,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25159 states to 25159 states and 32550 transitions. [2021-11-23 14:04:25,435 INFO L78 Accepts]: Start accepts. Automaton has 25159 states and 32550 transitions. Word has length 189 [2021-11-23 14:04:25,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:04:25,436 INFO L470 AbstractCegarLoop]: Abstraction has 25159 states and 32550 transitions. [2021-11-23 14:04:25,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:25,436 INFO L276 IsEmpty]: Start isEmpty. Operand 25159 states and 32550 transitions. [2021-11-23 14:04:25,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2021-11-23 14:04:25,446 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:04:25,446 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:04:25,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-23 14:04:25,447 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-23 14:04:25,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:04:25,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1501975091, now seen corresponding path program 1 times [2021-11-23 14:04:25,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:04:25,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529897146] [2021-11-23 14:04:25,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:04:25,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:04:25,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:04:25,585 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-23 14:04:25,586 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:04:25,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529897146] [2021-11-23 14:04:25,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529897146] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:04:25,586 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:04:25,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 14:04:25,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367196497] [2021-11-23 14:04:25,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:04:25,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 14:04:25,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:04:25,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 14:04:25,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:04:25,588 INFO L87 Difference]: Start difference. First operand 25159 states and 32550 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:27,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:04:27,031 INFO L93 Difference]: Finished difference Result 60824 states and 78953 transitions. [2021-11-23 14:04:27,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:04:27,032 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 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 190 [2021-11-23 14:04:27,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:04:27,141 INFO L225 Difference]: With dead ends: 60824 [2021-11-23 14:04:27,142 INFO L226 Difference]: Without dead ends: 36085 [2021-11-23 14:04:27,181 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 [2021-11-23 14:04:27,181 INFO L933 BasicCegarLoop]: 2198 mSDtfsCounter, 1420 mSDsluCounter, 1802 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1420 SdHoareTripleChecker+Valid, 4000 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 14:04:27,182 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1420 Valid, 4000 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 14:04:27,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36085 states. [2021-11-23 14:04:28,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36085 to 36055. [2021-11-23 14:04:28,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36055 states, 36043 states have (on average 1.296368226840163) internal successors, (46725), 36054 states have internal predecessors, (46725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:28,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36055 states to 36055 states and 46725 transitions. [2021-11-23 14:04:28,718 INFO L78 Accepts]: Start accepts. Automaton has 36055 states and 46725 transitions. Word has length 190 [2021-11-23 14:04:28,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:04:28,718 INFO L470 AbstractCegarLoop]: Abstraction has 36055 states and 46725 transitions. [2021-11-23 14:04:28,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:28,719 INFO L276 IsEmpty]: Start isEmpty. Operand 36055 states and 46725 transitions. [2021-11-23 14:04:28,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-11-23 14:04:28,727 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:04:28,728 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:04:28,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-23 14:04:28,728 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-23 14:04:28,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:04:28,729 INFO L85 PathProgramCache]: Analyzing trace with hash 668880955, now seen corresponding path program 1 times [2021-11-23 14:04:28,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:04:28,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424796079] [2021-11-23 14:04:28,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:04:28,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:04:28,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:04:28,878 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-23 14:04:28,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:04:28,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424796079] [2021-11-23 14:04:28,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424796079] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:04:28,879 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:04:28,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 14:04:28,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667016990] [2021-11-23 14:04:28,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:04:28,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 14:04:28,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:04:28,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 14:04:28,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:04:28,898 INFO L87 Difference]: Start difference. First operand 36055 states and 46725 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:30,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:04:30,623 INFO L93 Difference]: Finished difference Result 81192 states and 105252 transitions. [2021-11-23 14:04:30,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:04:30,624 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 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 191 [2021-11-23 14:04:30,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:04:30,730 INFO L225 Difference]: With dead ends: 81192 [2021-11-23 14:04:30,730 INFO L226 Difference]: Without dead ends: 45557 [2021-11-23 14:04:30,772 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 [2021-11-23 14:04:30,772 INFO L933 BasicCegarLoop]: 2196 mSDtfsCounter, 804 mSDsluCounter, 1801 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 3997 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 14:04:30,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [804 Valid, 3997 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 14:04:30,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45557 states. [2021-11-23 14:04:32,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45557 to 45541. [2021-11-23 14:04:32,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45541 states, 45529 states have (on average 1.290957411759538) internal successors, (58776), 45540 states have internal predecessors, (58776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:32,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45541 states to 45541 states and 58776 transitions. [2021-11-23 14:04:32,538 INFO L78 Accepts]: Start accepts. Automaton has 45541 states and 58776 transitions. Word has length 191 [2021-11-23 14:04:32,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:04:32,538 INFO L470 AbstractCegarLoop]: Abstraction has 45541 states and 58776 transitions. [2021-11-23 14:04:32,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:32,538 INFO L276 IsEmpty]: Start isEmpty. Operand 45541 states and 58776 transitions. [2021-11-23 14:04:32,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2021-11-23 14:04:32,554 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:04:32,555 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:04:32,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-23 14:04:32,555 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-23 14:04:32,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:04:32,556 INFO L85 PathProgramCache]: Analyzing trace with hash 271719727, now seen corresponding path program 1 times [2021-11-23 14:04:32,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:04:32,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195106092] [2021-11-23 14:04:32,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:04:32,557 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:04:32,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:04:32,704 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-11-23 14:04:32,705 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:04:32,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195106092] [2021-11-23 14:04:32,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195106092] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:04:32,705 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:04:32,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 14:04:32,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626601772] [2021-11-23 14:04:32,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:04:32,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 14:04:32,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:04:32,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 14:04:32,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:04:32,707 INFO L87 Difference]: Start difference. First operand 45541 states and 58776 transitions. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:34,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:04:34,945 INFO L93 Difference]: Finished difference Result 103954 states and 134398 transitions. [2021-11-23 14:04:34,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:04:34,950 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 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 220 [2021-11-23 14:04:34,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:04:35,107 INFO L225 Difference]: With dead ends: 103954 [2021-11-23 14:04:35,107 INFO L226 Difference]: Without dead ends: 58618 [2021-11-23 14:04:35,167 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 [2021-11-23 14:04:35,170 INFO L933 BasicCegarLoop]: 3248 mSDtfsCounter, 1378 mSDsluCounter, 1817 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1378 SdHoareTripleChecker+Valid, 5065 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 14:04:35,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1378 Valid, 5065 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 14:04:35,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58618 states. [2021-11-23 14:04:37,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58618 to 58592. [2021-11-23 14:04:37,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58592 states, 58580 states have (on average 1.2921304199385455) internal successors, (75693), 58591 states have internal predecessors, (75693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:37,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58592 states to 58592 states and 75693 transitions. [2021-11-23 14:04:37,353 INFO L78 Accepts]: Start accepts. Automaton has 58592 states and 75693 transitions. Word has length 220 [2021-11-23 14:04:37,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:04:37,353 INFO L470 AbstractCegarLoop]: Abstraction has 58592 states and 75693 transitions. [2021-11-23 14:04:37,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:37,354 INFO L276 IsEmpty]: Start isEmpty. Operand 58592 states and 75693 transitions. [2021-11-23 14:04:37,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2021-11-23 14:04:37,369 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:04:37,369 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:04:37,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-23 14:04:37,370 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-23 14:04:37,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:04:37,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1165206065, now seen corresponding path program 1 times [2021-11-23 14:04:37,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:04:37,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790637842] [2021-11-23 14:04:37,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:04:37,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:04:37,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:04:37,528 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-11-23 14:04:37,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:04:37,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790637842] [2021-11-23 14:04:37,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790637842] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:04:37,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:04:37,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 14:04:37,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964555808] [2021-11-23 14:04:37,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:04:37,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 14:04:37,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:04:37,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 14:04:37,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:04:37,531 INFO L87 Difference]: Start difference. First operand 58592 states and 75693 transitions. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:40,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:04:40,132 INFO L93 Difference]: Finished difference Result 130137 states and 168394 transitions. [2021-11-23 14:04:40,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:04:40,132 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 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 220 [2021-11-23 14:04:40,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:04:40,258 INFO L225 Difference]: With dead ends: 130137 [2021-11-23 14:04:40,259 INFO L226 Difference]: Without dead ends: 71965 [2021-11-23 14:04:40,303 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 [2021-11-23 14:04:40,303 INFO L933 BasicCegarLoop]: 3248 mSDtfsCounter, 1388 mSDsluCounter, 1807 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1388 SdHoareTripleChecker+Valid, 5055 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 14:04:40,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1388 Valid, 5055 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 14:04:40,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71965 states. [2021-11-23 14:04:42,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71965 to 71939. [2021-11-23 14:04:42,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71939 states, 71927 states have (on average 1.2926022216969983) internal successors, (92973), 71938 states have internal predecessors, (92973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:42,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71939 states to 71939 states and 92973 transitions. [2021-11-23 14:04:42,643 INFO L78 Accepts]: Start accepts. Automaton has 71939 states and 92973 transitions. Word has length 220 [2021-11-23 14:04:42,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:04:42,644 INFO L470 AbstractCegarLoop]: Abstraction has 71939 states and 92973 transitions. [2021-11-23 14:04:42,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:42,644 INFO L276 IsEmpty]: Start isEmpty. Operand 71939 states and 92973 transitions. [2021-11-23 14:04:42,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-11-23 14:04:42,661 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:04:42,662 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:04:42,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-23 14:04:42,662 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-23 14:04:42,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:04:42,663 INFO L85 PathProgramCache]: Analyzing trace with hash 2082548534, now seen corresponding path program 1 times [2021-11-23 14:04:42,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:04:42,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711261926] [2021-11-23 14:04:42,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:04:42,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:04:42,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:04:43,090 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-11-23 14:04:43,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:04:43,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711261926] [2021-11-23 14:04:43,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711261926] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:04:43,093 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:04:43,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 14:04:43,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750325812] [2021-11-23 14:04:43,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:04:43,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 14:04:43,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:04:43,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 14:04:43,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:04:43,096 INFO L87 Difference]: Start difference. First operand 71939 states and 92973 transitions. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:45,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:04:45,787 INFO L93 Difference]: Finished difference Result 157952 states and 204113 transitions. [2021-11-23 14:04:45,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:04:45,788 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 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 223 [2021-11-23 14:04:45,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:04:46,162 INFO L225 Difference]: With dead ends: 157952 [2021-11-23 14:04:46,163 INFO L226 Difference]: Without dead ends: 86011 [2021-11-23 14:04:46,227 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 [2021-11-23 14:04:46,228 INFO L933 BasicCegarLoop]: 2663 mSDtfsCounter, 792 mSDsluCounter, 1817 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 4480 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 14:04:46,228 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [792 Valid, 4480 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 14:04:46,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86011 states. [2021-11-23 14:04:49,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86011 to 85995. [2021-11-23 14:04:49,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85995 states, 85983 states have (on average 1.2892199620855285) internal successors, (110851), 85994 states have internal predecessors, (110851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:49,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85995 states to 85995 states and 110851 transitions. [2021-11-23 14:04:49,558 INFO L78 Accepts]: Start accepts. Automaton has 85995 states and 110851 transitions. Word has length 223 [2021-11-23 14:04:49,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:04:49,559 INFO L470 AbstractCegarLoop]: Abstraction has 85995 states and 110851 transitions. [2021-11-23 14:04:49,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:04:49,559 INFO L276 IsEmpty]: Start isEmpty. Operand 85995 states and 110851 transitions. [2021-11-23 14:04:49,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-11-23 14:04:49,578 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:04:49,579 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:04:49,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-23 14:04:49,583 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-23 14:04:49,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:04:49,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1729460152, now seen corresponding path program 1 times [2021-11-23 14:04:49,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:04:49,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729253802] [2021-11-23 14:04:49,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:04:49,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:04:49,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:04:49,761 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-11-23 14:04:49,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:04:49,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729253802] [2021-11-23 14:04:49,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729253802] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:04:49,762 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:04:49,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 14:04:49,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931254167] [2021-11-23 14:04:49,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:04:49,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 14:04:49,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:04:49,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 14:04:49,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:04:49,766 INFO L87 Difference]: Start difference. First operand 85995 states and 110851 transitions. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)